U.S. patent number 3,918,716 [Application Number 05/379,226] was granted by the patent office on 1975-11-11 for game apparatus for trying coincidence between randomly selected characters.
This patent grant is currently assigned to Clarion Company Limited. Invention is credited to Shoji Iwasaki, Hiroshi Nonaka, Masataka Okada, Kikuo Usugi.
United States Patent |
3,918,716 |
Nonaka , et al. |
November 11, 1975 |
Game apparatus for trying coincidence between randomly selected
characters
Abstract
A game apparatus having digital circuit arrangement such that
some randomly selected characters are sequentially exhibited on a
plurality of display sections when the player sets the apparatus in
operation, as by the insertion of a chip into its slot. When the
thus-exhibited characters conicide, the apparatus dispenses a
prescribed number of prize chips. When all but one of the
characters coincide, the player is allowed to play an "extra game"
on the display section which has exhibited a character out of
coincidence with those exhibited by the other display sections.
According to another preferred embodiment of the invention such
extra game can be played not only when all but one of the
characters coincide but when they do not coincide at all.
Inventors: |
Nonaka; Hiroshi (Toda,
JA), Usugi; Kikuo (Toda, JA), Okada;
Masataka (Toda, JA), Iwasaki; Shoji (Toda,
JA) |
Assignee: |
Clarion Company Limited (Tokyo,
JA)
|
Family
ID: |
27463946 |
Appl.
No.: |
05/379,226 |
Filed: |
July 16, 1973 |
Foreign Application Priority Data
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Jul 20, 1972 [JA] |
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47-72021 |
May 25, 1973 [JA] |
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48-60723 |
Jun 12, 1973 [JA] |
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48-65453 |
Jun 5, 1973 [JA] |
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48-62499 |
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Current U.S.
Class: |
463/21;
200/61.45R; 463/35; 200/61.1 |
Current CPC
Class: |
G07F
17/3265 (20130101); G07F 17/3211 (20130101) |
Current International
Class: |
G07F
17/34 (20060101); G07F 17/32 (20060101); A63F
008/00 () |
Field of
Search: |
;273/138A,1E,86B,121A
;200/61.1,61.11,61.45R,61.48 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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1,178,302 |
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Jan 1970 |
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GB |
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268,377 |
|
Jun 1966 |
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AU |
|
280,649 |
|
Apr 1967 |
|
AU |
|
Primary Examiner: Apley; Richard J.
Assistant Examiner: Kramer; Arnold W.
Attorney, Agent or Firm: Toren, McGeady and Stanger
Claims
What is claimed is:
1. An electronic game apparatus comprising:
means for initiating game operation;
a plurality of timers responsive to said game initiating means for
providing electrical signals having predetermined different time
durations;
means also responsive to said game initiating means for providing
an output signal consisting of a series of pulses;
a plurality of gate circuits, each responsive to a different timer
signal and to said pulse signal, for passing said pulses when said
timer signals are present;
a plurality of counter circuits, each coupled to a respective gate
circuit, for counting the pulses delivered from each of said gate
circuits respectively;
a plurality of display sections, including respective driver
circuits, each display section responsive to a corresponding
counter circuit respectively, each display section including means
for exhibiting a character randomly selected from a closed set of
different characters and dependent upon the termination of a
corresponding timer signal, said driver circuits being so connected
to said exhibiting means that the probability of selection of each
of the characters differs;
a coincidence circuit for sensing the characters exhibited by said
display sections and for producing a plurality of outputs
corresponding to said characters being in predetermined patterns of
coincidence, and probability of occurrence of said coincidence
patterns differing;
prize chip dispensing means having a reservoir of prize chips and
responsive to the outputs of said coincidence circuit for
dispensing a predetermined amount of prize chips corresponding to
each of said outputs of said coincidence circuit; and
a plurality of selector means adapted to be set prior to game
operation being connected between said driver circuits and said
display sections for changing the connections between driver
circuits and exhibiting means so that the probability of selection
of each of the characters is changed resulting in a corresponding
change in the probability of occurrence of said coincidence
patterns and, correspondingly, the amount of prize chip
dispensation.
2. An electronic game apparatus as in claim 1 wherein said driver
circuits have a number of outputs which exceed the number in the
set of characters to be exhibited, each driver output being adapted
to excite a character, and wherein certain driver outputs are
connected together, and connected to a corresponding display
character exhibit means, the number of outputs being so connected
together and being connected to a display character determining the
probability of selection of that character.
3. An electronic game apparatus as in claim 2 wherein said selector
means includes a plurality of individual switches between
respective driver circuits and display sections for changing the
connections between said driver circuits and corresponding display
characters so as to change the probability of selection of that
character, said selector switches being ganged together to move as
a single switching unit.
4. An electronic game apparatus, said apparatus being in normal
operation when substantially motionless and being in abnormal
operation when a predetermined condition such as a substantial
shock, force or motion is imparted to said apparatus,
comprising:
means for initiating game operation;
a plurality of timers responsive to said game initiating means for
providing electrical signals having predetermined different time
durations;
means also responsive to said game initiation means for providing
an output signal consisting of a series of pulses;
a plurality of gate circuits, each responsive to a different timer
signal and to said pulse signal, for passing said pulses when said
timer signals are present;
a plurality of counter circuits, each coupled to a respective gate
circuit, for counting the pulses delivered from each of said gate
circuits respectively;
a plurality of display sections, including respective driver
circuits, each display section responsive to a corresponding
counter circuit respectively, each display section including means
for exhibiting a character randomly selected from a closed set of
different characters and depending upon the termination of a
corresponding timer signal, said driver circuits being so connected
to said exhibiting means that the probability of selection of each
of the characters differs;
a coincidence circuit for sensing the characters exhibited by said
display sections and for producing a plurality of outputs
corresponding to said characters being in predetermined patterns of
coincidence, the probability of occurrence of said coincidence
patterns differing;
prize chip dispensing means havng a reservoir of prize chips and
responsive to the outputs of said coincidence circuit for
dispensing a predetermined amount of prize chips corresponding to
each of said outputs of said coincidence circuit; and
sound generator means for generating a sound during normal
operation of said game apparatus, said sound generating means
including a switching circuit to which a signal is supplied only
during normal operation of said game apparatus, an oscillator
circuit being driven by said switching circuit and a sound source
being driven by said oscillator circuit, said sound generator means
including alarm means for causing said sound source to provide a
loud noise when the game apparatus is in abnormal operation, said
alarm means including sensing means responsive to said
predetermined condition causing abnormal operation, and a second
switching circuit actuated by said sensing means for causing said
oscillator circuit to cause said sound source to generate said loud
noise.
5. The game apparatus of claim 4 wherein said sensing means
includes a first sensor for actuating said second switching circuit
when said game apparatus is tilted, and a second sensor for
actuating said second switching circuit when the game apparatus is
raised and wherein said counter circuits are reset by the sensor
means.
6. The game apparatus of claim 4 wherein said counter circuits are
reset by a signal delivered from an OR circuit to which is supplied
an output from said sensing means and an output from said
coincidence circuit.
7. The game apparatus as recited in claim 4, comprising means for
changing the frequency of said oscillator circuit from one
frequency corresponding to normal operation to another frequency
corresponding to abnormal operation.
8. The game apparatus as recited in claim 7, wherein said means for
frequency changing comprises a resistor and capacitor connected
together for changing the repetition rate of said oscillator.
Description
BACKGROUND OF THE INVENTION
This invention relates to a game apparatus composed predominantly
of digital circuitry for causing a plurality of display sections to
exhibit some randomly selected characters and for dispensing a
prescribed number of prize chips when all the exhibited characters
coincide.
There has been known a slot machine of this class, in which there
are provided several motor-driven reels each having a series of
characters or pictures represented thereon. To set this prior art
machine in operation the player is required to insert a chip or the
like into its slot and then to operate a lever, whereupon the
aforesaid reels start revolving at high speed. The reels
automatically stop one after the other, with the result that a
randomly selected one of the characters or the like on each reel is
exhibited through each of the windows formed on the machine. When
there is any correspondence between the characters thus exhibited,
there is awarded a prize in accordance with the nature of that
correspondence.
However, since the prior art machine of the type described depends
for its operation almost solely on mechanical means, it involves a
variety of intrinsic deficiencies. For instance, considerable noise
is produced during operation of the machine, and the inevitable
wear of its moving parts gives rise to various troubles or
malfunctions.
SUMMARY OF THE INVENTION
It is, therefore, an object of this invention to provide a game
apparatus of the class referred to, which is composed predominantly
of electronic circuitry whereby the listed disadvantages of the
prior art are eliminated altogether.
Another object of the invention is to provide a game apparatus
which is highly compact, lightweight, inexpensive of manufacture,
and positive in operation.
A further object of the invention is to provide a game apparatus
which permits the player to play an "extra game" under some
specified conditions in event he has failed to obtain coincidence
between the characters exhibited as a result of his first game.
A further object of the invention is to provide a game apparatus
including a sound generating mechanism such that some mechanical
sound is produced during operation of the apparatus to indicate its
normal operating condition and to add to the thrills of the
game.
A further object of the invention is to provide a game apparatus
including an alarm mechanism which gives off a loud noise as when
the apparatus is tilted and/or raised.
A still further object of the invention is to provide a game
apparatus including a display device whereby various characters are
exhibited in a clearly distinguishable manner, either singly or in
combination.
With these objects in view and the other objects hereinafter set
forth, this invention provides a game apparatus which, according to
a preferred embodiment thereof, includes a plurality of timers for
producing outputs for prescribed different lengths of time when the
operation of the game apparatus is initiated by the player, as by
the insertion of a chip or the like into its slot. Means such as an
oscillator becomes operative simultaneously with the timers to
produce pulses, and these pulses are permitted to pass through
gates, such as NAND circuits, only while these gates are being
supplied with the outputs from the corresponding timers. The pulses
delivered from the gates are counted by counter circuits provided
correspondingly thereto, and the outputs from these counter
circuits are supplied to driver circuits respectively, such that
upon lapse of the prescribed operating times of the aforesaid
timers some randomly selected characters are exhibited on display
sections.
Whether the characters thus exhibited on the respective display
sections coincide or not is sensed by a coincidence circuit, which
produces an output when the exhibited characters do coincide. A
prize chip dispensing section is provided which dispenses prize
chips only while being supplied with the output from the
coincidence circuit. The prize chips being thus dispensed are
counted by counter means, perhaps on a binary basis, which is
capable of causing the coincidence circuit to discontinue its
output production when a prescribed number of the prize chips are
dispensed by the prize chip dispensing section.
The embodiment described hereinbefore can be further provided with
a logical circuit comprising a pair of flip-flop circuits to permit
the player to play an extra game as when all but one of the
characters exhibited by the respective display sections as a result
of his first game are in coincidence.
The features which are believed to be novel and characteristic of
this invention are set forth in the appended claims. The invention
itself, however, both as to its organization and mode of operation,
together with the further objects and advantages thereof, will be
better understood from the following description taken in
conjunction with the accompanying drawings which illustrate some
preferred embodiments of the invention purely by way of
example.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic electrical diagram showing a game apparatus
by way of a preferred embodiment of the invention;
FIG. 2 is a schematic diagram showing an example of the detailed
configuration of a timer used in the game apparatus of FIG. 1;
FIG. 3 is a schematic diagram showing a part of a coincidence
circuit shown in FIG. 1 and prior art means for counting prize
chips being dispensed;
FIG. 4 is a waveform diagram explanatory of the operation of the
counting means shown in FIG. 3;
FIG. 5 is a similar waveform diagram explanatory of the operation
of the prize chip counting means used in the game apparatus of FIG.
1;
FIG. 6 is a schematic diagram showing means for changing the
average percentage of prize chips dispensation in the game
apparatus of FIG. 1;
FIG. 7 is a perspective view of a display device for use in the
game apparatus of FIG. 1;
FIG. 8 is an exploded perspective view of the display device of
FIG. 7;
FIG. 9 is a vertical sectional view of the display device of FIG.
7;
FIG. 10 is a schematic electrical diagram showing a game apparatus
by way of another preferred embodiment of the invention;
FIGS. 11a and 11b are waveform diagrams plotted by way of
explanation of a possible erroneous operation of the game apparatus
of FIG. 10;
FIGS. 12a and 12b are also waveform diagrams plotted by way of
explanation of another possible erroneous operation in the game
apparatus of FIG. 10;
FIG. 13 is a schematic diagram showing the detailed configuration
of a sound generator and alarm mechanism in the game apparatus of
FIG. 10; and
FIGS. 14a and 14b are vertical sectional views of sensors for use
with the mechanism of FIG. 13.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The game apparatus according to this invention will now be
described with reference to FIG. 1 which illustrates the electrical
circuitry of a first preferred embodiment of the invention. A
microswitch provided at SW1 is to be temporarily closed each time a
chip or the like is inserted into the slot of the game apparatus.
This microswitch is associated with electronic timers T1, T2 and T3
as in the drawing, and each of the timers will produce a signal for
a prescribed length of time upon closure of the microswitch SW1.
For instance, the timer T1 may have a prescribed operating time of
four seconds, the timer T2 that of five seconds, and the timer T3
that of six seconds.
As illustrated in more detail in FIG. 2, each of the timers T1 to
T3 may comprise an integrating circuit consisting of capacitor C1
and resistance R1, and switching elements Q1, Q2 and Q3. Referring
again to FIG. 1, the output terminal leading from the switching
element Q3 of each timer is connected to one of the input terminals
of each of NAND circuits U1, U2 and U3. The timer T3, which has the
longest operating time, is further associated with an oscillator
circuit OU in such a manner that the operating time of this
oscillator circuit is exactly synchronized with that of the timer
T3.
The output of the oscillator circuit OU is connected to another
input of each of the aforesaid NAND circuits U1 to U3, while the
outputs of these NAND circuits are connected to the inputs of
counter circuits CU1, CU2 and CU3 respectively. The outputs of the
counter circuits are connected to the inputs of driver circuits
DU1, DU2 and DU3, respectively, that are adapted to operate
respective display sections A, B and C which can be formed of
indicator tubes, liquid crystals or the like.
Actuated by the pulses delivered from the driver circuits DU1 to
DU3, each of the display sections A to C will exhibit, say, seven
distinct characters or pictures. During operation of each display
section the seven characters exhibited thereby will change from one
to the next at such high speed that the player will be unable to
decipher them. Each of the driver circuits has a plurality of 16,
in this particular embodiment, output terminals which can be
selectively switched over to change the rate at which the
characters exhibited by the respective display sections coincide,
as hereinafter described in more detail.
Connected to a still another input terminal of each of the NAND
circuits U1 to U3 is a logical circuit LU adapted to permit the
player to play an extra game hereinafter explained. This logical
circuit is broadly composed of flip-flop circuits FF1 and FF2 each
having four terminals J, K, Q and Q. The extra game can be
explained as follows. Upon termination of the operation of the
counter circuits CU1 to CU3 the display sections A to C exhibit
some characters selected at random. If the characters thus
exhibited by, say, the display sections A and B coincide with each
other but not with that exhibited by the display section C, then
the player is entitled to an extra game in which only the display
section C is caused to change its characters.
The characters exhibited each time by the display sections A to C
are, in a sense, recognized by a coincidence circuit EU which
serves to cause the dispensation of prize chips, which may be made
of metal, in case the characters exhibited by the display sections
coincide. The number of the prize chips thus dispensed by the game
apparatus of the invention is determined in accordance with the
particular characters which have coincided, as will be referred to
in further detail. The coincidence circuit EU comprises NOR
circuits U4 to U17 and inverters I1 to I5 connected as in the
drawing.
Six out of the seven outputs of the display section A which
correspond to the respective characters to be exhibited thereby are
connected to the inputs A1 to A6 of the NOR circuits U4 to U8 and
U14 respectively, while the remaining one output is connected to
none of the circuits. Thus, no prize chips will be dispensed when
the character corresponding to that one output is exhibited. A
similar output is provided to each of the other display sections B
and C.
The six outputs of the display section B are similarly connected to
the inputs B1 to B6 of the NOR circuits U4 to U8 and U14, whereas
the six outputs of the display section C are connected to the
inputs C1 to C6 of the NOR circuits U9 to U14. Connected to the
other inputs of the NOR circuits U9 to U13 are the outputs of the
inverters I1 to I5, respectively, the inputs of which inverters are
connected to the outputs of the NOR circuits U4 to U8,
respectively. The NOR circuits U9 to U13 have additional inputs
128, 64, 32, 16 and 8, and the other NOR circuits U14 to U16 also
have additional inputs 8', 4 and 2. These eight additional inputs
of the NOR circuits U9 to U16 are connected to the five inputs 2,
4, 8', 8 and 16 of a binary counter circuit CU4 and to the three
inputs 32, 64 and 128 of another binary counter circuit CU5 as in
the drawing.
The reference numerals attached to the outputs of the NOR circuits
U9 to U16 and to the corresponding inputs of the counter circuits
CU4 and CU5 represent the numbers of the prize chips to be
dispensed by the action of a motor, not shown, under the control of
a NOR circuit U18. The number of the prize chips dispensed each
time is to be counted on the basis of pulses introduced through
terminal 3. When the pulse number thus counted is, say, two, a
signal is delivered from the output 2 to the input 2 of the NOR
circuit U16.
It will redound to the full appreciation of the advantages of this
invention to note that a decimal counter counter CU4' and a
binary-to-decimal conversion matrix circuit M shown in FIG. 3 have
been used conventionally in place of the binary counter circuits
CU4 and CU5. According to this prior art arrangement the pulses
delivered from the outputs a to h of the matrix circuit M have the
duration, as diagrammatically represented in FIG. 4. Such pulses,
when introduced into the coincidence circuit, are hardly
distinguishable from those generated accidentally as by external
noises. Contrastively, the pulses produced according to the
invention have their own characteristic duration as shown in FIG.
5, so that any erroneous operation of the coincidence circuit is
successfully prevented.
It will be apparent that the probability of coincidence of each set
of characters exhibited by the display sections A, B and C should
be determined on the basis of the average rate at which the prize
chips are to be dispensed. The average percentage of prize chip
dispensation may be set, for example, at 60, 70 and 80 per cent
depending upon the estimated frequency at which games are played on
the game apparatus, and there are 4,101 combinations of the
characters to be exhibited by the three display sections. If now it
is assumed that the player is permitted to play the aforesaid extra
game only on the display section C, and that the average percentage
of prize chip dispensation is present at 60 and 80 per cent,
respectively, then the probability of coincidence of each set of
characters and the corresponding number of prize chips to be
dispensed can be determined as in the following tables:
I. Average Percentage of Prize Chip Dispensation: 60% (Total Number
of Games Played: 4101) Number of Display Probability Prize Total
Number Char- Section of Chips of Prize Chips acter A B C
Coincidence Dispensed Dispensed
______________________________________ ! 1 1 1 2 128 256 * 1 1 1 2
64 128 # 3 1 1 6 32 192 x 7 1 1 14 16 224 y 1 8 1 16 8 128 64 8 512
z 2 4 8 64 4 256 384 2 768 ? 1 0 3 0 0 0
______________________________________ Total 552 2264
______________________________________
II. Average Percentage of Prize Chip Dispensation: 80% (Total
Number of Games Played: 4101) Number of Display Probability Prize
Total Number Char- Section of Chips of Prize Chips acter A B C
Coincidence Dispensed Dispensed
______________________________________ ! 1 1 1 2 128 256 * 1 1 1 2
64 128 # 3 1 2 12 32 384 x 8 1 2 32 12 512 y 1 7 4 56 8 448 60 8
480 z 2 5 6 100 4 400 352 2 704 ? 0 0 0 0 0 0
______________________________________ Total 616 3312
______________________________________
For thus changing the average percentage of prize chip dispensation
in accordance with the frequency at which games are played on this
apparatus, the probability of coincidence of the respective sets of
characters must be correspondingly modified as set forth by way of
example in the foregoing tables. This objective can be accomplished
according to the invention simply by operating selector switches
SW2 to SW7, FIG. 6, which are interlocked to simultaneously change
the operating combinations of the above mentioned 16 outputs
provided to each of the driver circuits DU1 to DU3 associated with
the display sections A to C respectively. In this particular
embodiment of the invention, 80 per cent of prize chip dispensation
results when the movable contact of each selector switch is
connected to the fixed contact k, 70 per cent when to the fixed
contact l, and 60 per cent when to the fixed contact m.
The circuitry shown in FIG. 1 further includes NOR circuits U19 and
U20 and NAND circuits U21 and U22, and the logical circuit LU is
provided with an "extra game" switch SW8 and a "cancel" switch SW9
which are both to be operated by the player for purposes
hereinafter made apparent.
The first preferred embodiment of the invention being configured
substantially as hereinbefore described with reference to FIG. 1 in
particular, the microswitch SW1 is temporarily closed to initiate
the operation of the timers T1 to T3 when a chip or the like is
inserted into the slot of the game apparatus. The output signals
from these timers are delivered to the NAND circuits U1 to U3 to
cause conduction therethrough, so that the pulses generated by the
oscillator circuit OU, which has started its operation
simultaneously with the timers, are supplied via the NAND circuits
to the counter circuits CU1 to CU3, where the pulses are
counted.
The output signals from these counter circuits, representative of
the counted numbers of pulses, are delivered to the driver circuits
DU1 to DU3 respectively, whereupon these driver circuits actuate
the respective display sections A to C. As previously mentioned,
the seven characters are sequentially and repeatedly exhibited on
each of the display sections during operation of the counter
circuits, at such high speed that they are not visually
recognizable. Upon lapse of a predetermined length of time (4
seconds in this embodiment) the timer T1 stops its operation, and
the other timers T2 and T3 stop their operations in 5 and 6 seconds
respectively. Each time one of these timers becomes inoperative,
the corresponding one of the NAND circuits U1 to U3 is rendered
nonconductive, and the operation of the oscillator circuits OU
terminates at the same time when the NAND circuit U3 becomes
nonconductive. The counting operations of the counter circuits CU1
to CU3 also terminate when the timers become inoperative. The
display sections A to C now stationarily exhibit their respective
characters which have been showing when the corresponding timers
become inoperative.
Let it now be assumed that the movable contact of each of the
selector switches SW 2 to SW7, provided between the driver circuits
and the display sections as shown in FIG. 6, is connected to the
fixed contact k to set the average percentage of prize chip
dispensation at 80 per cent. The characters exhibited by the
respective display sections in accordance with this percentage of
prize chip dispensation are all recognized by the coincidence
circuit EU. In case all the characters on the display sections have
coincided, the coincidence circuit operates as follows.
If the coinciding characters are, say, "!", then 128 prize chips
will be automatically dispensed (see Table II). The display section
A delivers an output signal corresponding to the character "!" to
the input A1 of the NOR circuit U4 of the coincidence circuit.
Similarly, the display section B delivers an output signal
corresponding to the character ! to the other input B1 of the NOR
circuit U4. Thus, the NOR circuit U4 produces a signal which is
delivered to the NOR circuit U9 via the inverter circuit I1. Since
an output signal corresponding to the character ! is also delivered
from the display section C to the input C1 of this NOR circuit U9,
a signal is supplied from its output to one of the inputs of the
NOR circuit U17.
The NOR circuit U17 produces an output signal whenever a signal is
introduced to any of its inputs, so that upon delivery of the
signal from the NOR circuit U9, the NOR circuit U17 supplies its
output signal to the NOR circuit U18 which controls the operation
of the aforesaid motor, not shown, of the prize chip dispensing
section. The 128 prize chips are now successively dispensed, and
the number of the prize chips being thus dispensed are counted by
the binary counter circuits CU4 and CU5, to which the pulses
corresponding to the dispensed chips are supplied as aforesaid
through its terminal 3. In accordance with the sequentially
increasing number of the pulses actually counted by the counter
circuits CU4 and CU5, signals are successively produced from its
terminals 2, 4 and so on, until at last a signal is produced from
the terminal 128. The last mentioned signal is delivered through
the terminal 128 to the NOR circuit U9 of the coincidence circuit
EU thereby terminating the signal production of this NOR circuit
U9. Thereupon the NOR circuit U18 causes the motor of the prize
dispensing section to be set out of rotation so that prize chips
are no longer dispensed. The same operation of the coincidence
circuit EU and so forth takes place no matter what characters
coincide on the respective display sections A to C.
In case the characters exhibited by the display sections A and B
have coincided with each other but not with that exhibited by the
display section C, another game can be played extra on the display
section C through the procedure set forth hereinbelow.
Upon closure of the cancel switch SW9 provided to the logical
circuit LU the output Q of the flip flop circuit FF2 is brought to
a 0 level. If now a chip or the like is inserted into the slot of
the game apparatus to play the game as described above, the timers
T1 to T3 are set in operation to cause the output Q of the flip
flop circuit FF1 to switch to a 1 level. In this state the display
sections A to C exhibit the swiftly changing characters. Upon lapse
of the prescribed lengths of time the timers successively stop
their operations, with the result that the characters exhibited by
the display sections A and B coincide with each other but not with
that exhibited by the display section C as above assumed. The
output Q of the flip flop circuit FF1 is now brought to a 0
level.
Since the characters exhibited by the display sections A and B are
in coincidence, signals representative of these coinciding
characters are delivered to either of the NOR circuits U4 to U8, so
that an output signal from this particular NOR circuit is delivered
to the NOR circuit U18 and thence to the NAND circuit U22 via the
NOR circuit U19. Also delivered to the NAND circuit U22 is the 1
level signal from the output Q of the flip flop circuit FF2, so
that upon closure of the "extra game" switch SW8, the NAND circuit
U22 will deliver its output signal to the "clock" terminal of the
flip flop circuit FF2.
Thus, the player is ready to play an extra game if he closes the
extra game switch when the characters exhibited by the display
sections A and B are in coincidence and when the timers are out of
operation. Upon closure of the extra game switch the output Q of
the flip flop circuit FF2 and the output J of the flip flop circuit
FF1 are both brought to a 0 level, so that the NAND circuits U1 and
U2 connected to these outputs of the flip flop circuits FF1 and FF2
are biased to cause the display sections A and B to maintain the
coinciding characters which have been exhibited thereby as a result
of the precedingly played game. This permits the player to play an
extra game only on the display section C as above stated.
As the player again inserts a chip or the like into the slot of the
game apparatus to play the extra game, the timers T1 to T3 are set
in operation. Since, however, the output of only the timer T3
connected to the logical circuit LU, the output Q of the flip flop
circuit FF1 is brought to a 1 level by the output signal of the
timer T3 while the output Q of the flip flop circuit FF2 remains in
the "0" level. As a consequence, the display sections A and B are
caused to maintain their coinciding characters, whereas the display
section C is caused to sequentially and repeatedly exhibit the
seven characters as previously explained. This operation of the
display section C continues for the prescribed operating time, six
seconds in this embodiment, of the timer T3.
Upon termination of operation of the timer T3 the output Q of the
flip flop circuit FF1 switches to a 0 level. As the output Q of the
other flip flop FF2 resultantly switches to a 1 level, the NAND
circuits U1 and U2 are both released from their inoperative
condition. In case all the characters exhibited by the display
sections A to C have coincided as a result of this extra game, a
predetermined number of the prize chips will be dispensed through
the procedure already set forth. Since the logical circuit LU is
already in its normal condition, the NAND circuits U1 and U2 cannot
be biased as above even if the extra game switch SW8 is closed
again, so that the extra game cannot be played twice consecutively.
This holds true even in case all the characters exhibited by the
three display sections have coincided as a result of the extra
game.
If a chip or the like is again inserted to initiate the operations
of the timers T1 to T3, the output Q of the flip flop circuit FF1
assumes a 1 level. The initial condition is thus realized. The NOR
circuit U20 shown in FIG. 1 is used to exhibit the fact that the
player is free to insert a chip or the like into the slot of the
game apparatus, while the NAND circuit U21 is used to exhibit the
fact that an extra game is due.
The operation of the selector switches SW2 to SW7 shown in FIG. 6
will now be briefly described in relation only with the display
section B. If, for instance, the movable contact of the selector
switch SW3 is connected to the fixed contact k to realize 80 per
cent of prize chip dispensation, then the terminal of the display
section B corresponding to the character z is electrically
connected to the terminal No. 15 of the driver circuit DU2 besides
being connected to the terminals Nos. 4, 6, 10 and 12 of the driver
circuit. The probability that the character z will be exhibited by
the display section B is now higher than when the movable contact
of the selector switch SW3 is connected to the fixed contact m.
Similar results are obtainable with the other selector switches.
However, it must be noted that in this embodiment of the invention
the selector switches SW2 to SW7 are all interlocked for changing
the average percentage of prize chip dispensation between 60, 70
and 80 per cent.
The detailed construction of the display sections A to C is
hereinafter described with reference to FIGS. 7 to 9. A casing 30,
which can be conveniently molded of a plastic, is recessed at 31 to
accommodate a plurality of display panels 32 one on the back of
another. It will be noted from FIGS. 8 and 9 that the display
panels are removably received in grooves 33 formed correspondingly
at the bottom and the top of the recess 31. The grooves formed on
the top of the recess 31 are open to a plurality of compartments
34, respectively, each adapted to house a lamp 35.
Each of the display panels 32 is in the form of a sheet of
transparent material, such for example as acrylic resin or glass,
on one face of which an appropriate character or picture is
engraved. A color filter 36, made for example of a colored plastic,
is affixed to the upper edge of each display panel, while a shutter
37 of opaque material such for example as metal is affixed to the
bottom edge of each display panel.
As will be seen from FIGS. 8 and 9, the aforesaid lamps 35 are
supported at their upper ends by a rectangular plate 38 laid over
the casing 30. This casing is further provided with a front
covering 39 of substantially U-shaped cross section having a window
40 through which are exhibited the various characters or the like
of the respective panels in a manner described hereinbelow.
When one of the lamps 35 is lit up, the corresponding one of the
display panels 32 therebelow is irradiated through the color filter
36 so that the character or the like engraved on this particular
panel only is distinctly made visible in the color of that color
filter due to the so-called edge effect. Similarly, when another of
the lamps 35 is lit up, the display panel corresponding thereto is
irradiated through its own color filter so that the character on
this second panel is also made visible in a color which preferably
is differentiated from the color of the first mentioned color
filter.
Thus, since the characters or the like engraved on the respective
display panels are exhibited in their own distinctive colors, they
are easily visually distinguishable from each other. The characters
thus exhibited are especially aesthetically appealing when they are
successively switched from one to the next as previously mentioned.
It is an additional advantage that even when two or more of the
display panels are irradiated simultaneously by their respective
lamps, the resultantly exhibited characters are clearly
distinguishable from each other.
The game apparatus according to the invention will now be described
in terms of a second preferred embodiment thereof illustrated in
FIG. 10, in which parts corresponding to those set forth in
connection with the preceding embodiment are designated by like
reference characters.
As in the preceding embodiment, the microswitch SW1 is to be
temporarily closed each time a chip or the like is inserted into
the slot of the game apparatus. Upon closure of the microswitch the
timers T1 to T3 will generate pulses of a definite level for their
respective prescribed lengths of time, the timer T1 having the
shortest operating time and the timer T3 the longest operating
time. The output of each of these timers is connected to one of the
inputs of each of the NAND circuits U1 to U3, and each of the NAND
circuits has another input for connection to the output of a pulse
oscillator circuit OU and still another input 1H, 2H or 3H for use
when the extra game is played, as hereinafter referred to in more
detail.
The outputs of the NAND circuits U1 to U3 are connected to the
inputs of decimal counter circuits C1 to C3 and thence to driver
circuits D1 to D3 respectively. Each of the driver circuits has,
say, sixteen outputs connected to each of matrix circuits N1 to N3
whereby the sixteen outputs of each driver circuit are rearranged
into six outputs 1A to 1F, 2A to 2F, and 3A to 3F, respectively.
The six outputs of each matrix circuit are connected to a display
section, not shown, which exhibits signals or characters in
accordance with the signals of different kinds supplied thereto.
More specifically, the display sections associated with the
respective matrix circuits N1 to N3 can be formed of lamps,
indicator tubes, liquid crystals or the like to exhibit such
signals or characters in a manner still to be described.
Each corresponding three of the outputs of the matrix circuits N1
to N3 are connected to each of four-input OR circuits S1 to S6. The
OR circuit S1, for instance, has its three inputs connected to the
outputs 1A, 2A and 3A of the matrix circuits and its fourth input
connected to an output .sigma. of a pair of counter circuits C4 and
C5 adapted to count the number of prize chips dispensed when the
characters exhibited by the aforesaid display sections coincide.
Pulse signals will be produced successively from the outputs
.alpha. to .sigma. of the counter circuits when they count up to 2,
4, 8, 16, 32, 64 and 128 prize chips respectively. The output
.alpha., for instance, corresponds to the number 2 and the output
.sigma. to the number 128. For thus counting the number of prize
chips there is provided a switch SW10 adapted to be closed by each
prize chip being dispensed, and a pulse is introduced into the
counter circuits each time the switch is closed.
The outputs of the OR circuits S1 to S8 are all connected to a NAND
circuit G1 the output of which is connected, on the one hand, to a
NAND circuit G2 and on the other hand to a NOR circuit G3. This NOR
circuit G3 is adapted to light up a lamp, not shown, for indication
that the apparatus is ready for operation. The NOR circuit G3 has
another input which is connected to the output of the aforesaid
timer T3. This output of the timer T3 is further connected via an
inverter I6 to another input of the NAND circuit G2, while the
output of this NAND circuit is connected via an inverter 17 to the
motor, not shown, of the prize chip dispensing section.
A NAND circuit G4 has two inputs connected to the output of the
inverter 16 and to the output of the NAND circuit G2 respectively,
while the output of the NAND circuit G4 is connected to one of the
two inputs of an OR circuit S8. Connected to the other input of the
OR circuit S8 is the terminal Q of a flip flop circuit F. The
output of the OR circuit S8 is connected via an inverter I8 to a
terminal which is to be connected to a lamp, not shown, for
indication that an extra game can be played. The output of the OR
circuit S8 is also connected to a plurality of independently
operable switches SW11 to SW13 which are further connected to the
terminals P of flip flops F1 to F3 respectively. The terminals Q of
these flip flops are connected to the respective inputs of an OR
circuit S9, while the terminals Q of the flip flops are connected
to the inputs 1H to 3H of the aforementioned NAND circuits U1 to U3
respectively.
The output of the OR circuit S9 is connected to a circuit adapted
to prevent erroneous operation and also to prevent the extra game
to be played twice consecutively. More specifically, the output of
this OR circuit is connected to a switching element Tr1 via diode
D1, resistances R2 to R5, and capacitor C2, which are
interconnected as in the drawing. The collector of the switching
element Tr1 is connected to the input of a NAND circuit G5 which
has another input connected to the output line of the timer T3. The
output of the NAND circuit G5 is connected to the terminal P of the
aforesaid flip flop F, and the clear terminal C of this flip flop
is connected to the output of the NAND circuit G6.
The OR circuit S9 has its output also connected to one of the two
inputs of the NAND circuit G6, the other input of which is
connected to the output line of the timer T3. The terminal Q of the
flip flop F, the terminal C of which is connected to the output of
the NAND circuit G6 as above mentioned, is connected to one of the
two inputs of an OR circuit S10. The other input of this OR circuit
S10 is connected to the output line of the timer T3. The output of
the OR circuit S10 is connected via a cancel switch SW9 to the
clear terminals C of the flip flop circuits F1 to F3. These
terminals C of the flip flop circuits are further connected to the
collector of a switching element Tr2. A diode D2 is connected
between the base of the switching element Tr2 and the ground. The
base of this switching element is further connected via a capacitor
C3 to the collector of another switching element Tr3, and the base
of the switching element Tr3 is connected to the output line of the
timer T3.
The terminal Q of each of the aforesaid flip flop circuits F1 to F3
is also connected to one of the two inputs of each of NOR circuits
S11 to S13 adapted to light up lamps, not shown, for indication of
the extra game. The other input of each of these NOR circuits is
connected to the output of the inverter 17. This output of the
inverter 17 is also connected to one of the two inputs of an OR
circuit S14, and the other input of the OR circuit S14 is connected
to the output of a sound generator M which doubles as an alarm, as
hereinafter described in more detail in FIGS. 13 and 14. The output
of the OR circuit S14 is connected to the "reset" terminal R of the
counter circuits C1 to C3. The sound generator M includes a sensor
which responds when the game apparatus is unduly tilted or lifted
as by the player himself, whereupon the counter circuits C1 to C3
are immediately reset by the signal delivered from the OR circuit
S14. The counter circuits C4 and C5 have their reset terminals
connected to the output of the timer T3 so that these counter
circuits are permitted to operate only when the timer T3 is out of
operation.
In the second preferred embodiment of the invention, configured
essentially as described hereinabove with reference to FIG. 10, the
switch SW1 is temporarily closed as in the preceding embodiment
when a chip or the like is inserted into the slot of the game
apparatus, thereby initiating the operations of the timers T1 to
T3. It is to be noted that the NAND circuits U1 to U3 are
conductive only when their inputs connected to the outputs of the
respective timers T1 and T3 to their inputs 1H to 3H are both at a
1 level. As previously mentioned, the inputs 1H to 3H of the NAND
circuits are connected to the terminals Q of the flip flop circuits
F1 to F3 respectively. Since the flip flop circuits F1 to F3
normally have their terminals Q at a 1 level and their terminals Q
at a 0 level, the NAND circuits U1 to U3 become conductive
immediately when the timers T1 to T3 are set in operation, so that
the pulses generated by the pulse generator OU are delivered
therethrough to the respective counter circuits C1 to C3. The
output signals of these counter circuits are introduced into the
display sections via the driver circuits D1 to D3 and the matrix
circuits N1 to N3 respectively. These signals are, for example, at
a 0 level and causes the respective display sections to exhibit
changing characters.
Since the timers T1 to T3 have different operating times as above
stated, the operations of the counter circuits C1 to C3 terminate
successively, in the order of C1, C2 and C3 in this embodiment.
Thereupon the display sections also successively exhibit some
particular characters in a manner which will be apparent from the
foregoing discription of the preceding embodiment. When the
characters exhibited by the three display sections all coincide, a
prescribed number of prize chips are dispensed. No prize chip is
dispensed when all the three exhibited characters differ. However,
in this second preferred embodiment of the invention, the player is
entitled to the extra game when the characters exhibited by the
three display sections are all out of coincidence, in addition to
when the characters exhibited by two of the display sections are in
coincidence.
When, for instance, the three display sections exhibit some
coinciding characters, the matrix circuits N1 to N3 produce 0 level
outputs from the corresponding ones of their output terminals 1A to
1F, 2A to 2F, and 3A to 3F. Let it now be assumed that such 0 level
outputs are produced from the terminals 1A, 2A and 3A of the matrix
circuits. These outputs are then all delivered to the input
terminals 1A, 2A and 3A of the OR circuit S1. Since the other input
terminal .sigma. of this OR circuit is also at a 0 level, the OR
circuit S1 delivers a 0 level output to the NAND circuit G1 and
thence to the NAND circuit G2. Since this NAND circuit G2 is also
supplied with the output from the timer T3 via the inverter I6, the
NAND circuit has its two inputs both at a 1 level when the timer
output switches to a 0 level, so that its output is brought to a 0
level. This 0 level output signal from the NAND circuit G2 again
brought to a 1 level by the inverter 17 and is utilized to actuate
the motor of the prize chip dispensing section.
As the motor is thus set in rotation, prize chips are successively
dispensed, in such a way that each prize chip instantaneously
closes the switch SW10 thereby causing the counter circuits C4 and
C5 to count the number of such prize chips being dispensed. When,
in this instance, 128 prize chips are counted, the counter circuits
delivers a 1 level signal from the output terminal .sigma. to the
corresponding input terminal .sigma. of the OR circuit S1 so that
the output from this OR circuit switches to a 1 level. As a
consequence, the output from the inverter I7 switches to a 0 level
to set the motor out of rotation and hence to suspend the
dispensation of the prize chips.
The extra game can be played as follows when the characters
exhibited by the three display sections do not coincide at all or
when the characters exhibited by two of the display sections
coincide. It is necessary that prior to playing such extra game,
the switches SW11 and SW13 be selectively operated to cause the two
coinciding exhibited characters or any one of the three exhibited
characters to remain unchanged during the extra game. For instance,
if the switches SW11 and SW12 are closed, the characters exhibited
by the display sections associated with the matrix circuits N1 and
N2 will remain fixed during the extra game, because then the
terminals P of the flip flop circuits F1 and F2 are connected to
the output of the OR circuit S8.
In case the characters exhibited by the three display sections are
all out of coincidence, the NAND circuit G4 delivers a 0 level
output to one of the input terminals of the OR circuit S8. The
other input terminal of this OR circuit is also supplied with a 0
level output from the terminal Q of the flip flop circuit F, so
that the OR circuit S8 produces a 0 level output. Accordingly,
since the terminals P of the flip flop circuits F1 and F2 are set
at a 0 level, the closure of the switches SW11 and SW12 causes the
terminals Q of these flip flop circuits to switch from 1 to 0
level. The NOR circuits S11 and S12 are thus caused to produce 1
level outputs to light up the lamps, not shown, connected thereto.
The 0 level signals from the terminals 1H and 2H are delivered to
the NAND circuits U1 and U2, respectively, thereby making the same
nonconductive, so that the characters exhibited by the display
sections associated with the matrix circuits N1 and N2 are held
unchanged during the extra game to be played succeedingly.
The preparations for playing the extra game being now completed, a
chip or the like may again be inserted into the slot of the game
apparatus to close the switch SW1 and thus to set the timers T1 to
T3 in operation. Since, however, the NAND circuits U1 and U2 are
now both nonconductive, the counter circuit C3 only becomes
operative to count the pulses delivered from the timer T3 via the
NAND circuit U3, and the display section associated with the matrix
circuit N3 only is caused to change its characters. Upon lapse of
the predetermined length of time the timer T3 becomes inoperative
to render the NAND circuit U3 nonconductive so that the display
section associated with the matrix circuit N3 exhibits some
particular character. When this character coincides with the two
like characters already exhibited by the other display sections, a
prescribed number of prize chips will be dispensed through a
procedure already set forth.
Typically, the extra game switches SW11 to SW13 are to be closed by
push buttons or the like arranged conveniently on this game
apparatus, so that it is likely that the player close wrong
switches. In this case the cancel switch SW9 may be closed to
cancel out the previous instructions. Since the OR circuit S10
connected to the switch SW9 has its inputs at a 0 level, the
closure of this switch causes the terminals Q of the flip flop
circuits F1 to F3 to return from 0 to 1 level.
In this second preferred embodiment of the invention, too, the
player is prevented from playing two extra games consecutively, by
means described hereinbelow. When a single extra game is played as
above explained, either of the terminals Q of the flip flop
circuits F1 to F3 is brought to a 1 level, so that the output from
the OR circuit S9 is at a 1 level. It will be noted from FIG. 10
that the output terminal of this OR circuit S9 is connected, on the
one hand, to one of the input terminals of the NAND circuit G6 and,
on the other hand, to one extremity of the resistance R4 and to the
diode D1.
If now an extra game is started, the 1 level output from the timer
T3 is delivered to the NAND circuits G5 and G6 and the switching
element Tr3. However, in event a chip or the like is inserted
substantially at the same time the extra game switches SW11 to SW13
are closed, the ouput from the timer T3 changes from 0 to 1 level
with a certain transition time t1 as shown diagrammatically in FIG.
11a. This 1 level output is impressed to one of the input terminals
of the NAND circuit G5 as above mentioned. Since the other input
terminal of the NAND circuit G5 is connected to the output terminal
of the OR circuit S9 via the switching element, it becomes
conductive when the switches SW11 to SW13 are closed. Upon
conduction of the switching element Tr1 the potential at its
collector turns from high to low level with a certain time of
transition as seen in FIG. 11b. This signal is delivered to the
NAND circuit G5.
Thus, in event a chip or the like is inserted substantially at the
same time the extra game switches are closed, the NAND circuit G5
will be impressed with a threshold voltage so that its output goes
negative. This pulse signal of negative polarity is delivered to
the terminal P of the flip flop circuit F. With the flip flop
circuit in this condition the player is allowed to play the extra
game repeatedly. In order to prevent such desirable outcome the
threshold voltage impressed to the NAND circuit G5 must be
eliminated. To this end the switching element Tr1 must be caused to
turn on earlier than when the timer T3 starts its signal
production, as indicated by the dot-and-dash lines in FIG. 11b.
This can be accomplished by the provision of the diode D1.
A similar threshold voltage is also produced at the end of an extra
game. When the output from the timer T3 returns to a 0 level as
shown in FIG. 12a, the flip flop circuits F1 to F3 are all caused
to regain their initial condition by the switching element Tr3. As
a consequence, the output from the OR circuit S9 assumes a 0 level,
as in FIG. 12b, at the same time the output from the timer T3
switches to a 0 level, so that the collector of the switching
element Tr1 assumes a 1 level. If these changes in the levels of
the output from the timer T3 and the potential at the collector of
the switching element Tr1 took place simultaneously, the aforesaid
threshold voltage would be produced. However, owing to the
capacitor C2 connected to the input of the switching element Tr1,
the level of this switching element is caused to change after the
operation of the timer T3 has terminated, as indicated by the
dot-and-dash lines in FIG. 12b, so that any erroneous operation of
the NAND circuit G5 is prevented.
Thus, after an extra game is played once, the terminal Q of the
flip flop circuit F is always at a 1 level to prevent the player
from playing two extra games consecutively. It may be noted that
during the progress of an extra game, the output of the NAND
circuit G6 is at 0 level and the terminal Q of the flip flop
circuit at a 1 level. When the extra game is over, the terminal Q
of this flip flop circuit returns to a 0 level, and the other flip
flop circuits also return to their initial condition.
The game apparatus described hereinbefore is so compact and
lightweight that it may be tilted, vibrated or, what is worse,
carried away from its place of installation. In view of these
possibilities there is provided the sound generator and alarm
mechanism M described later in more detail. When the apparatus is
unduly tilted or raised the mechanism will deliver a pulse signal
to the OR circuit S14 thereby causing the same to deliver a reset
signal to the counter circuits C1 to C3. The operation of the game
apparatus is thus suspended. The alarm mechanism will also emit a
noise to warn the fact. However, in case some coinciding characters
are already exhibited by the three display sections, a prescribed
number of prize chips will be duly dispensed while only the warning
noise is produced.
The detailed configuration of the sound generator and alarm
mechanism M will now be described with reference to FIG. 13. A
control circuit CS1 is composed of switching elements Q4 and Q5 and
other circuit elements shown in the drawing. The switching element
Q5 has its collector connected to a diode D3 and thence to an
oscillator CS2 which may be in the form of a multivibrator composed
of switching elements Q6 and A7 and so forth. This oscillator CS2
is further connected to an amplifier CS3 which is provided with a
buzzer Bz or the like. The switching element Q6 of the oscillator
CS2 has its base connected to the aforesaid diode D3, and a
predetermined voltage is impressed thereto via resistance R5. The
frequency of the oscillations by the oscillator CS2 is determined
by the product of the values of the resistance R5 and the capacitor
C4.
The control circuit CS1 is to be actuated by sensors Sn and Sn'
shown in FIGS. 14a and b. The sensor Sn includes a housing having a
substantially funnel-shaped bottom 50. A limit switch 51 fixedly
mounted under the housing has its actuating member 52 projecting
through the center of the funnel-shaped bottom 50. Thus, as long as
the game apparatus is in its normal condition, the limit switch 51
is held closed by a ball 53 placed upon the funnel-shaped bottom of
its housing. However, in case the apparatus is tilted to such an
extent that the ball 53 displaces from its central position on the
funnel-shaped bottom, the limit switch 51 opens.
The other sensor Sn' is substantially in the form of a normally
open switch comprising a vertically movable contact 54 and a pair
of fixed contacts 55. The movable contact 54 is normally held
raised as by the floor surface on which the game apparatus is
mounted. As the apparatus is lifted, however, the movable contact
is lowered by gravity thereby establishing electrical connection
between the pair of fixed contacts 55.
Further according to this invention it is considered desirable that
while the game apparatus is operating properly, some sound be
produced to indicate the proper operating condition of the
apparatus and also to add to the thrills of the game. For producing
such sound a signal which is generated only during the operation of
the game apparatus is directed to a terminal T6, FIG. 13, of a
control circuit CS4 which is substantially of the same
configuration as the first mentioned control circuit CS1. The
control circuit CS4 includes switching elements Q8 and Q9, and a
voltage is impressed via resistance R6 to the collector of the
switching element Q9. The collector of this switching element Q9 is
also connected to the base of the switching element Q6 of the
oscillator CS2 via diode D4 and resistance R7. The resistance R6 is
of higher value than the resistance R5. A pair of supply terminals
are provided at T and T'.
When a chip or the like is inserted into the slot of the game
apparatus of FIG. 10 to set the same in operation, the aforesaid
signal is delivered to the terminal T6 of the control circuit CS4.
The switching element Q8 is then turned on, while the switching
element Q9 is turned off. Thus, the voltage impressed to the base
of the switching element Q6 of the oscillator CS2 via the diode D4
and resistance R6. As the switching element Q9 is turned off as
aforesaid so that the voltage is impressed to its collector, the
voltage regulated by the resistances R6 and R7 is impressed to the
base of the switching element Q6. The oscillator CS2 thus produces
its output at a predetermined frequency. This oscillator output is
introduced to the amplifier CS3 to cuase the buzzer Bz to emit a
sound which is not the loud noise usually emitted by such buzzer in
the event of an emergency but is like that produced by similar game
apparatus of mechanical construction.
In event the game apparatus is tilted or raised, whether it is in
operation or not, the sensor Sn and/or sensor Sn' is closed to
cause a biasing voltage to be impressed to the base of the
switching element Q4 of the control circuit CS1. As the switching
element Q4 is thus turned on, the other switching element Q5 is
turned off. The collector voltage thereof, regulated by the
resistance R5, is delivered via the diode D3 to the base of the
switching element Q6 of the oscillator CS2. The resulting output
from this oscillator, determined by the product of the values of
the resistance R5 and the capacitor C4, is introduced to the
amplifier CS3 to cause the buzzer Bz to produce a loud, warning
noise. The frequency of this warning noise is to be appropriately
determined on condition that the value of the resistance R5 is
smaller than that of the resistance R6.
It is believed that the embodiments herein disclosed are well
calculated to accomplish the various objects of the invention,
either explicitly stated or otherwise set forth. However, it will
also be understood that such specifically recited embodiments are
susceptible to modifications, substitutions or changes within the
usual knowledge of those skilled in the art. It is therefore
appropriate that the invention be construed broadly and in a manner
consistent with the fair meaning or the proper scope of the claims
appended hereto.
* * * * *