U.S. patent number 3,801,805 [Application Number 05/213,323] was granted by the patent office on 1974-04-02 for automatic money dispensing machine.
This patent grant is currently assigned to Glory Kogyo Kabushiki Kaisha. Invention is credited to Yoshihiro Hatanaka, Hideto Shigemori.
United States Patent |
3,801,805 |
Hatanaka , et al. |
April 2, 1974 |
AUTOMATIC MONEY DISPENSING MACHINE
Abstract
An automatic money dispensing machine in which data is
registered in a storage register comprising a plurality of digits,
and the data to be compared with the dispensed money amount is
successively divided into unit data or a unit data group by a data
selective circuit, the divided unit data or data group being
successively compared in a comparator with the counted content of a
dispensed money counting circuit, and dispensation of the money is
carried out in accordance with results of the comparison in the
comparator. Furthermore, a particular automatic carry circuit is
provided which shifts the digit in the storage register of the
above-mentioned machine in two ways; one causing shifting of the
digit when a coincidence signal is issued from the comparator, and
the other causing shifting when the first effective numeral of an
amount of money registered in the register is at a digit lower than
a comparison reference digit designated in the register.
Inventors: |
Hatanaka; Yoshihiro (Himeji,
JA), Shigemori; Hideto (Himeji, JA) |
Assignee: |
Glory Kogyo Kabushiki Kaisha
(Himeji-shi, Hyogo-ken, JA)
|
Family
ID: |
26458944 |
Appl.
No.: |
05/213,323 |
Filed: |
December 29, 1971 |
Foreign Application Priority Data
|
|
|
|
|
Dec 29, 1970 [JA] |
|
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45-121644 |
Dec 29, 1970 [JA] |
|
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45-121649 |
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Current U.S.
Class: |
705/43; 377/8;
377/39; 377/54 |
Current CPC
Class: |
G07D
11/24 (20190101); G06M 3/02 (20130101); H03K
21/08 (20130101); G06Q 20/1085 (20130101); G07D
11/20 (20190101) |
Current International
Class: |
H03K
21/08 (20060101); H03K 21/00 (20060101); G06M
3/02 (20060101); G06M 3/00 (20060101); G07D
11/00 (20060101); G06m 003/02 (); G06m
003/10 () |
Field of
Search: |
;340/146.2
;235/177,61.7B,92CC,92PE,92SH,92CA,92SB |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Morrison; Malcolm A.
Assistant Examiner: Gottman; James F.
Attorney, Agent or Firm: Holman & Stern
Claims
We claim:
1. An automatic money dispensing machine for automatically
dispensing a desired monetary quantity said machine comprising:
data input means receptively operable to data fed thereto, which
data is composed of a combination of individual digits numerically
representing the monetary quantity to be dispensed;
storage means operably connected to said data input means and
having a plurality of individual storage positions the number of
which at least corresponds to the number of digits in said monetary
quantity, for consecutively storing respective ones of said
individual digits in numerical order beginning with the most
significant digit of said monetary quantity and ending with the
least significant digit thereof;
money dispensing means operatively associated with said storage
means for dispensing individual groups of monetary quantities the
sum of which equals the monetary quantity stored in said storage
means, the highest significant digit of each of said individual
groups of monetary quantities corresponding to successive digits of
said monetary quantity commencing with the highest significant
digit thereof;
counting means operatively associated with said money dispensing
means for counting each of said individual groups of monetary
quantities dispensed therefrom;
selecting means operatively associated with said storage means for
successively operatively selecting each individual digit stored in
said storage positions;
comparator means operatively associated with said storage means,
said counting means and said selecting means for comparing the
highest significant digit of consecutive respective dispensed ones
of said individual groups of monetary quantities with respective
consecutively selected ones of said digits stored in said storage
means and selected by said selecting means beginning with the
highest significant digit thereof, whereby said monetary quantity
is dispensed from said machine in said individual groups of
monetary quantities.
2. An automatic money dispensing machine as claimed in claim 1
wherein said comparator means has output signal producing means
which delivers an output signal when a respective highest
significant digit of one of said groups of individual monetary
quantity counted by said counting means coincides with a
corresponding respective one of said digits selected by said
selecting means, said output signal being applied to said selecting
means whereby said selecting means selects the digit numerically
following said corresponding respective one of said digits in said
storage means.
3. An automatic dispensing machine as claimed in claim 2 wherein
said storage means is a shift register which comprises said
plurality of storage units and said selecting means is a shift
circuit which operates to cause a particular one of the digits in
said storage means to shift to the next higher storage position
thereof when the digit in that higher position coincides with the
highest significant digit of a respective one of said individual
groups of monetary quantities being counted by said counting
means.
4. An automatic money dispensing machine as claimed in claim 3, in
which the most significant digit and, at least the following digit
in said storage means are employed as comparison reference digits,
the first comparison with a respective highest significant digit of
one of said groups of individual monetary quantities being
dispensed, being effected with respect to all the comparison
reference digits, the following comparison being effected with
respect to the least significant digit only of said comparison
reference digits.
Description
BACKGROUND OF THE INVENTION
The present invention relates to an automatic money dispensing
machine adapted to automatically dispense money sheets
corresponding to an amount of money to be dispensed out, in which a
content stored in a storage register is compared with the amount of
the dispensed money, and to a particular carry circuit adapted to
shift the digit of the register used in said machine in two
different systems.
In general, when an operator depress a 10-key switch of an
automatic money dispensing machine thereby to designate a desired
or predetermined amount of money to be dispensed, the information
representing the amount of money is registered and stored in a
storage register. Then, if a start button switch is depressed, a
money dispensing operation is carried out. When the amount of
dispensed money coincides with the information stored in the
storage register, the money dispensing operation ceases. In a money
dispensing machine, of the above type a method is employed whereby
comparison with respect to all the digits of a shift register is
carried out, when an amount of actually dispensed money is compared
with information representing the amount of money to be dispensed
is stored in the shift register. However, in this method, it is
necessary to provide comparator circuits, the number of which is
the same as that of the digits, of the shift register and therefore
the construction of the money dispensing machine is complicated.
The money dispensing machine is able to perform by utilization of
one and the same register, both of an operation of dispensing money
with a minimum number of sheets i.e., (in which a predetermined
amount of money is dispensed out by combination of a minimum number
of sheets thereof, and an operation of dispensing money separately
according to monetary kinds i.e., in which a predetermined amount
of money is dispensed with a desired monetary kind). However, in
such a money dispensing machine, the amount of dispensed money is
compared with the content in the memory register, memory, however
the amount of money dispensed is compared with a necessary and
minimum number of digits instead of all the digits in the register
thereby to dispense out the money. In other words, such a money
dispensing machine carries out comparison and detection for every
monetary kind corresponding to the predetermined amount of money,
and when the comparison and detection of a monetary kind with a
particular digit is completed, the memory is shifted thereby to
conduct comparison and detection with respect to the following
digit.
SUMMARY OF THE INVENTION
It is accordingly a primary object of the present invention to
provide an automatic money dispensing machine in which the amount
of money to be dispensed is not compared with all the digits in a
storage register, but a comparator is provided for only the digit
of minimum number, whereby the content in the storage register is
compared with the number of the dispensed sheets.
Another object of the present invention is to provide an automatic
money dispensing machine which is simple in construction, and in
which the number of comparison circuits employed to compare the
content stored in a storage register with the number of sheets of
dispensed money is much reduced.
A further object of the present invention is to provide a circuit
which produces a shift instruction signal adapted to successively
shift to a higher digit an amount of money to be dispensed which is
registered in the register of a money dispensing machine.
A still further object of the present invention is to provide an
automatic carry circuit which serves to effectively dispense money
by the provision of two systems in the shift instruction issued to
the shift register to an automatic money dispensing machine, one of
the two systems being the case where a shifting operation is
carried out by a coincidence signal furnished from a comparator,
the other is the case where the shifting operation is carried out
when an effective numerical figure of an amount of money registered
in the shift register is at a digit lower than its comparison
reference digit.
The nature, utility and principle of the present invention will be
more clearly understood from the following detailed description
when read with reference to the accompanying drawings:
BRIEF DESCRIPTION OF THE DRAWING
In the accompanying drawings:
FIG. 1 is a block diagram of an automatic money dispensing machine
according to the present invention;
FIGS. 2(A) and 2(B) are diagrams illustrating variation of the
content stored in the storage register shown in FIG. 1 with lapse
of time;
FIG. 3 is a schematic circuit diagram showing an example of the
comparison circuit;
FIG. 4 is also a block diagram showing a comparison circuit adapted
to make comparison on a plurality of digits at the same time;
FIG. 5 is a block diagram of a money dispenser used in the present
invention; and
FIG. 6 is a diagram presenting an embodiment of the automatic carry
circuit according to the present invention.
DETAILED DESCRIPTION OF THE INVENTION
With reference to FIG. 1, information fed to an encoder EM by an
operator is encoded therein, and the encoded information is then
led to a buffer register BR, and registered as the least
significant digit of a shift register SR. The secondarily fed
information is also registered in the shift register SR in the same
manner as described above; however at the same time the information
registered initially is shifted one digit higher and the secondary
information is registered as the least significant digit of the
register. Similarly, further information fed to the encoder is
registered in the shift register as described. The shifting
operations are accomplished with the aid of shift pulses issued
from a pulse generator PG.
If the operator then depresses or closes a start switch (not
shown), when the most significant digit of the storage register is
not "0," money of a monetary kind with respect to the most
significant digit is dispensed and the number of sheets of the
money thus dispensed is read out and counted by a read-out count
circuit MD. When a value thus counted coincides with the content on
the most significant digit of the shift register SR, a coincidence
signal is produced, whereby money of a monetary kind on the next
digit is dispensed. At the same time, the content in the register
is shifted one digit higher by the coincidence signal. Hence when
the content of the most significant digit of the register is "0" at
the beginning of the operation, a coincidence signal is immediately
issued from the comparison circuit CR, whereby the same operation
as described above is carried out.
As described above, the operations of dispensing money of
predetermined monetary kinds are successively carried out from the
most significant digit.
With reference now to FIG. 2, a series of operations described
above are explained by presentation of the variation in the
contents stored in the shift register. FIG. 2(A) is an example
where 93,200 yen is registered in the shift register at the
beginning of the operation, while FIG. 2(B) is another example
where 192,000 yen is registered in the shift register.
Referring to FIG. 2(A), when 93,200 yen is registered first as
shown in column A.sub.1 and nine sheets of 10,000-yen paper money
are then dispensed, the content in the shift register will be as
shown in column A.sub.2. Next, when three sheets of 1,000-yen paper
money are dispensed, the content in the shift register is similarly
shifted one digit higher, as shown in column A.sub.3. In the same
way, the content is shifted one digit higher upon dispensing two
sheets of 100-yen paper money. As a result, all the digits of the
shift register become "0" as shown in column A.sub.4 and the money
dispensing operation is completed. In this case, the most
significant digit SR.sub.1 of the register is regarded as a
comparison reference digit throughout the money-dispensing
operation.
FIG. 2(B) shows another example, where first the most significant
digit SR.sub.1 and the next digit SR.sub.2 are used as comparison
reference digits, and after that the next digit SR.sub.2 is used as
a comparison reference digit.
Registered in the register SR is 192,000 yen, and applied to the
comparison circuit CR are the contents on digits SR.sub.1 and
SR.sub.2 in the register SR. Therefore, 19 sheets of 10,000-yen
paper money are dispensed, a coincidence signal is issued from the
comparison circuit, and the content in the shift register SR is
shifted one digit higher as shown in column B.sub.2. In this case,
the comparison circuit is provided with circuit sections adapted to
compare, respectively, one of two kinds of digits as described
later. The comparison circuits are constructed so that a comparison
circuit section adapted to compare the two digits SR.sub.1,
SR.sub.2 operates in the case of 10,000-yen and only a comparison
circuit section corresponding to the digit SR.sub.2 operates in the
case of 1,000-yen or less. Therefore, after the above-mentioned
dispensation of 19 sheets of 10,000 yen, only the digit SR.sub.2
becomes the reference digit for comparison, and when two sheets of
1,000-yen paper money are dispensed out and a coincidence signal is
issued from the comparison circuit, the content in the shift
register SR is shifted as shown in column B.sub.3. Since the
reference digit SR.sub.2 is now "0", money is no longer
dispensed.
Since binary coded decimal information is stored on each digit in
the shift register SR, the system of four bits per digit is
employed therein. Also, the four bits per digit is employed for the
read-out count circuit.
Shown in FIG. 3 is one example of the comparison circuit, in which
outputs of all the bits corresponding to the comparison reference
digits in the shift register SR are applied to input terminals
M.sub.1 to M.sub.4, while outputs of all the bits in the read-out
count circuit MD are applied to terminals W.sub.1 to W.sub.4. The
comparison circuit comprises NAND circuits NA.sub.1 to NA.sub.13
and inverters I.sub.1 to I.sub.8. Therefore, when all the bits
coincide with one another, the output of the NAND circuit NA.sub.13
becomes low in level and this low level output becomes a
coincidence signal for a single digit.
It is necessary to provide a switching means in order that digits
SR.sub.1 and SR.sub.2 are first used as the comparison reference
digits thereby to compare the two high adjacent digits one of which
is the most significant digit and then the digit SR.sub.2 is used
as the comparison reference digit. A circuit composition for this
purpose is shown in FIG. 4, which comprises diodes D.sub.1 and
D.sub.2 which form an AND circuit, comparison circuit sections
BC(MSD-1) and BC(MSD) corresponding respectively to the digits
SR.sub.2 and SR.sub.1, and a contact means a which is a
make-contact of a relay provided for a money dispensing drive
circuit (not shown). This relay is energized only when money of,
for instance, a 10,000-yen monetary unit is dispensed, and at only
this time the contact a is closed, and furthermore only when AND
conditions of the comparison circuit section for two digits are
established, a coincidence signal is issued. After the operation of
dispensing 10,000-yen paper money has been completed with the
result of the opening said contact a, the comparison circuit
section MSD is disconnected, as a result of which only the
comparison circuit section MSD-1 continues operation.
Although, in the above-mentioned embodiment, the number of digits
for dispensing money is five or six, the number of digits can be
increased as required. Furthermore, in the same embodiment, only
the circuit section MSD or both the circuit sections MSD and MSD-1
are used for the comparison reference digit, however the number of
the digits can be increased as required. For instance, if digits
from the highest digit up to the third digit are used, money up to
9,990,000-yen can be dispensed out.
With reference now to a block diagram of FIG. 5, a carrying circuit
adapted to carry the digit in the register used in the money
dispensing machine according to the present invention will be
outlined below.
An amount of money to be dispensed is registered in a shift
register MR by means of a 10-key (which has 10 keys "0" to "9") or
a paper tape reader. In such a shift-register, there are a number
of digits from the most significant digit MR.sub.1 to the least
significant digit MR.sub.n. For instance, a register for money to
be dispensed out in 10,000-yen paper money is provided with the
most significant digit MR.sub.1 and the next digit MR.sub.2, a
register for 5,000-yen and 1,000-yen paper money is similarly
provided with the digit MR.sub.3, and a register for 500-yen paper
money is also provided with the digit MR.sub.4. Reference symbol R
is a dispensed money detector. The detector R detects the money
dispensed and produces a pulse signal representative thereof. The
pulse signal from the detector R is fed to a dispensed money
counter WR which counts the amount of dispensed money. The digits
of the counter WR are composed of decimal two digits WR.sub.1 and
WR.sub.2. The digits WR.sub.1 and WR.sub.2 correspond to the most
significant digit MR.sub.1 and the next digit MR.sub.2 in the shift
register MR, respectively. A comparator means BC comprises two
comparators BC.sub.1 and BC.sub.2. The comparator BC.sub.1 makes a
comparison between the content on the digit MR.sub.1 in the shift
register MR and that on the digit WR.sub.1 of the dispensed money
counter WR, while the other comparator BC.sub.2 makes a comparison
between the content on the digit MR.sub.2 and that on the digit
WR.sub.2. When the content in the shift register MR coincides with
that in the counter WR, the comparator BC feeds a coincidence
signal to an automatic carry circuit CT. This carry circuit CT
supplies a carry signal to a shift pulse generator SPG when the
circuit CT receives a coincidence signal from the comparator BC or
when the the digit MR.sub.2 in the shift register MR becomes "0."
The shift pulse generator SPG, produces a shift pulse signal
thereby to shift the digits of the shift register.
The operation of the money dispensing machine as described above
will be explained below: There are two methods for dispensing
money: the first method dispenses money with a minimum number of
sheets thereof that is, a method of dispensing a predetermined
amount of money with a combination of a minimum number of sheets;
for instance, when 198,500-yen is to be dispensed, the combination
is 19 sheets of 10,000-yen paper money, a sheet of 5,000-yen paper
money, three sheets of 1,000-yen paper money and a sheet of 500-yen
paper money and the second method dispenses money separately
according to monetary kinds (that is, a method of dispensing the
money of a specific monetary kind with a desired number of
sheets).
The former method will be explained first. In the case when the
predetermined amount of money is 198,500 yen, an amount of money,
namely, 190,000 yen to be dispensed out in 10,000-yen paper money
is registered on the digits MR.sub.1 and MR.sub.2 in the shift
register MR. Upon commencement of dispensing 10,000-yen paper
money, the dispensed money is detected by the detector R and the
number of dispensed sheets thereof is counted by the dispensed
money counter WR. When the content in the counter WR coincides with
the content on the digits MR.sub.1 and MR.sub.2 which are digits
adjacent to each other and including the most significant digit of
the shift register MR, the operation of dispensing 10,000-yen paper
money ceases. At the same time, a coincidence signal is fed to the
automatic carry circuit CT from the comparator BC thereby to
operate the shift pulse generator SPG, whereby the content in the
shift register MR is shifted one digit higher. Hence, "9" and "8"
are registered as the digits in MR.sub.1 and MR.sub.2,
respectively, and further comparison and counting operations are
effected with respect to only the digit MR.sub.2. In addition, when
the content in the shift register MR is shifted one digit higher,
the detector R is reset. As a result, the registered number "8"
shifted to the digit position MR.sub.2 is subjected to comparison
and counting operation as described above, and when the
predetermined number of sheets of 1,000-yen paper money (including
5,000-yen paper money) are dispensed out, the content of the shift
register MR is further shifted one digit higher. Now, 500-yen paper
money corresponding to a registered number newly shifted to
MR.sub.2 in the shift register is dispensed through the same
process as mentioned above. Thus, in the method of dispensing money
with a minimum number of sheets thereof, a registered number which
is shifted to a specific digit position in the shift retister MR is
subjected to comparison and counting operation and money
corresponding to a total amount of money set therein is dispensed.
In the money dispensing machine operating to dispense money with a
minimum number of sheets, when the high digit (990,000 yen is the
highest amount of money in the register MR shown in FIG. 5) is not
registered in the case of registering an amount of money to be
dispensed in the register MR, or when for instance only 500 yen is
registered therein, the register MR is registered to display
"0005000" beginning from its most significant digit. In this case a
registered number "5" should be shifted to the digit position
MR.sub.2 of the shift register MR at the same time as a
money-dispensing instruction is issued.
However, when the money dispensing machine operates to dispense
money separately according to monetary kinds, an amount of money of
a predetermined specific monetary kind is dispensed, for instance,
six sheets of 1,000-yen paper money may be dispensed for a required
total amount of 6,000 yen. The comparison and counting operation
with respect to the digit MR.sub.2 of the register MR is carried
out in the same manner as described in the method of dispensing
money with a minimum number of sheets. In this case also, since
"006000" is registered in the shift register MR, a registered
number "6" should be shifted to the digit position MR.sub.2 at the
same time as a money dispensing instruction is issued.
The automatic carry circuit, according to the present invention,
when it is used in the money-dispensing machine used for both money
dispensing methods described above, automatically carries out two
operations of shifting the content in the register; in one
operation the content in the register is shifted by a coincidence
signal produced from the comparator BC for every monetary kind
included in a predetermined amount of money, and in the other
operation a content is shifted register in the when "0" is
registered on a digit subjected to the comparison and counting
operation.
With reference now to FIG. 6, the automatic carry circuit, of the
instant invention is shown which comprises: the digit MR.sub.2 of
the shift register which is the second digit from the most
significant digit of the register MR; AND gates AN.sub.1 and
AN.sub.2 in which a low potential L is logic "1," inverters I.sub.1
and I.sub.2, an OR gate OR in which a low potential L is logic "1,"
NAND gates NA.sub.1 and NA.sub.2 in which a high potential H is
logic "1," a mono-stable multi-vibrator OSM using a side which is H
in its output level when no signal is applied thereto, a flip-flop
G, a clock pulse oscillator OSC, a NAND gate NA.sub.3 in which a
high potential H is logic "1," and a contact means S in which
terminals c and a are connected by a pole when an instruction of
starting a money dispensing operation is issued and terminals c and
b are connected by the pole when the money dispensing operation is
completed. A terminal E is connected to an output terminal of the
comparator BC and obtains a high potential H when a coincidence
signal is issued. A terminal A assumes a high potential H when
10,000-yen paper money is dispensed. When a shift pulse for carry
arrives at terminal P, the mono-stable multi-vibrator OSM is
triggered by the first building-up of the shift pulse and produces
an output pulse of a low potential L. At this time, a time width T
of an output wave form of the mono-stable multi-vibrator OSM is
selected so as to be sufficient for shifting an amount of money
registered in the register MR one digit higher. Reference symbols
L.sub.1 to L.sub.4 designate outputs from the digit MR.sub.2 in the
shift register MR, respectively and run from terminals on the low
potential sides of all the bits of the digit MR.sub.2, said
terminals being of low potential when the circuit is reset.
In the circuit shown in FIG. 6, when the memorized content in the
shift register MR and that in the dispensed money counter WR
coincide (except "0"), the shift pulse generator SPG is triggered
by an output at ther terminal E. When there is "0" before the first
effective numeral of an amount of money registered in the shift
register MR, the shift pulse generator SPG is triggered by an
output of the NAND gate NA.sub.2, as a result the first effective
numeral of the amount of money is shifted to the digit MR.sub.2.
The reason why the shift instruction composed of two systems is
provided is as follows. The shifting operation can be made only by
the output signal from the terminal E if the content in the
register is shifted every one digit; however if there are several
digits of "0" in the digits which are higher than those of the
first effective numeral, the content in the register must be
continuously shifted to the digit position MR.sub.2. At the same
time, it is required to provide a delay time period between the
one-digit shifting operations in order to stabilize the shifting
operation of the shift register MR, but which cannot be
accomplished by only the output signal from the terminal E. In
addition, the terminal A is provided for the following reason. When
an amount of money, for instance, 108,500 yen is registered in the
shift register MR, it is obvious that the digit position MR.sub.2
registers "0". In this case, the shifting operation of the shift
register must be prohibited. This is the reason why the terminal A
is provided therein.
Now, the operation of the automatic carry circuit according to the
present invention will be described below:
In the case when the amount of money required is, for instance, 500
yen; the content in the shift register MR is "000500" beginning
from the most significant digit, which means that "0" is registered
in the digit position MR.sub.2 of the shift register MR. Therefore,
all the outputs L.sub.1 to L.sub.4 of the digit MR.sub.2 assume low
potentials L. Hence, the output of the AND gate AN.sub.1 is L and
the signal at the terminal A is also L. Accordingly, the output of
the AND gate AN.sub.2 is L, and the output of the inverter I.sub.1
becomes H. At the same time, the dispensed money counter WR is in
the state of reset, and therefore the signal at the terminal E is
H. However, because the output of the AND gate AN.sub.2 is L, the
output of the NAND gat NA.sub.3 becomes H. Accordingly, the output
of the NAND gate NA.sub.3 cannot be a shift instruction signal. The
output of the mono-stable multi-vibrator OSM is H when no signal is
applied thereto. Under this condition, when a money dispensing
start signal, is received the contact means S is switched over to
the side a whereby the side F of the flip-flop G becomes H. As a
result three inputs of the NAND gate NA.sub.1 become H, the output
of the NAND gate NA.sub.1 becomes L, and therefore the output of
the inverter I.sub.2 becomes H. Accordingly, one of the inputs of
the NAND gate NA.sub.2 becomes H, whereby a clock pulse from the
clock pulse oscillator OSC flows through the gate NA.sub.2. The
clock pulse further passes through the gate OR and becomes a shift
instruction signal thereby to generate a shift pulse. The
mono-stable multi-vibrator OSM is triggered by the first
building-down of the shift pulse, whereby the output pulse signal
of a low potential L is produced from the multi-vibrator OSM and is
applied to the NAND gate NA.sub.1. As a result, the output of the
NAND gate NA.sub.1 becomes H, and therefore the output of the
inverter I.sub.2 becomes L, whereby the NAND gate NA.sub.2
prohibits the passage of the clock pulse issued from the clock
pulse oscillator OSC. In other words, only one pulse of the clock
pulse signal is produced as a shift instruction. (In this case, the
clock pulse signal is made sufficiently greater than the shift
pulse signal.) The time width of the output pulse from the clock
pulse oscillator OSC Is such that the shift register MR is able to
shift one digit. Therefore, under the conditions that a one-digit
shifting operation has been carried out and the shift register MR
is stabilized, the output of the mono-stable multi-vibrator OSM
reverts to H. In this case, if there is still "0" registered on the
digit MR.sub.2, the one-digit shifting operation is again effected
through the same process as described above. The shifting operation
is continued until an effective numeral appears on the digit
MR.sub.2 in the shift register MR. Furthermore, when the content on
the digit MR.sub.2 of the shift register MR and that on the digit
WR.sub.2 of the dispensed money counter WR are coincident with
exception of "0," the output at the terminal E becomes H. In this
state, since the outputs of the AND gates AN.sub.1 and AN.sub.2 are
H, both inputs of the NAND gate NA.sub.3 become H. As a result, the
output of the NAND gate NA.sub.3 becomes L and the one-digit
shifting operation is carried out. As described before, when the
predetermined amount of money is 108,000 yen, for instance, "0" is
registered on the digit MR.sub.2 ; however, in this case a signal
at the terminal a becomes H, whereby the output of the inverter
I.sub.1 becomes L and the shifting instruction is not issued.
* * * * *