U.S. patent application number 12/055766 was filed with the patent office on 2009-03-26 for multifunction remote control system for audio and video recording, capture, transmission and playback of full motion and still images.
Invention is credited to Stephen M. Baker, Michael A. Forman, Randall A. Hoeffer, David A. Monroe.
Application Number | 20090080863 12/055766 |
Document ID | / |
Family ID | 22503172 |
Filed Date | 2009-03-26 |
United States Patent
Application |
20090080863 |
Kind Code |
A1 |
Monroe; David A. ; et
al. |
March 26, 2009 |
MULTIFUNCTION REMOTE CONTROL SYSTEM FOR AUDIO AND VIDEO RECORDING,
CAPTURE, TRANSMISSION AND PLAYBACK OF FULL MOTION AND STILL
IMAGES
Abstract
A multifunction remote controlled video recording, transmission
and playback system includes a still frame generator adapted for
selecting and generating still frames on the fly while a full
motion video signal is being recorded, without interrupting the
recording function. Audio and data signals, such as cockpit audio
in an aircraft and gps and telemetry signals may also be
incorporated in the recorded full motion video recording on a real
time synchronized basis. The still frames are digitally enhanced,
producing a full field frame from the analog video signal. Still
frames can be produced in single, burst and snap modes without
interrupting the full motion video recording function.
Inventors: |
Monroe; David A.; (San
Antonio, TX) ; Hoeffer; Randall A.; (Slidell, LA)
; Baker; Stephen M.; (San Antonio, TX) ; Forman;
Michael A.; (San Antonio, TX) |
Correspondence
Address: |
MOORE LANDREY
1609 SHOAL CREEK BLVD, SUITE 100
AUSTIN
TX
78701
US
|
Family ID: |
22503172 |
Appl. No.: |
12/055766 |
Filed: |
March 26, 2008 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
11057645 |
Feb 14, 2005 |
7359622 |
|
|
12055766 |
|
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Current U.S.
Class: |
386/235 ;
386/326; 386/E5.028 |
Current CPC
Class: |
H04N 9/8205 20130101;
H04N 5/782 20130101; H04N 9/8042 20130101 |
Class at
Publication: |
386/121 ;
386/E05.028 |
International
Class: |
H04N 5/232 20060101
H04N005/232 |
Claims
1-10. (canceled)
11. Apparatus comprising: a recorder adapted to record video input,
the video input including still images; memory accessible to store
at least one still image; a switch enabling distribution of video
input to the recorder, the switch enabling distribution of at least
one still image to the memory; and a processor coupled to the
memory, the processor operable with the memory to retrieve from the
memory the at least one still image, the at least one still image
being retrieved from the memory without interrupting continuous
recording by the recorder of the video input.
Description
FIELD OF THE INVENTION
[0001] The invention is a continuation of co-pending patent
application Ser. No. 09/143,232, filed Aug. 28, 1998 "Multifunction
Remote Control System for Audio Recording, Capture, Transmission
and Playback of Full Motion and Still Images," and is assigned to
the Assignee of the co-pending application. The invention is
generally related to audio and video recording and playback systems
for aircraft and is specifically directed to a single,
multifunction control unit for recording, transmission and playback
of both audio and video signals.
BACKGROUND OF THE INVENTION
Discussion of the Prior Art
[0002] Recording systems have been used on board aircraft for many
years. In the military, many aircraft such as, by way of example,
the U.S. Navy F-14 Tomcat, have included recorders that permit the
pilot to selectively record video images by activating the
recorder. These systems also permit the images to be played back
for viewing in a cockpit monitor by the pilot while in flight or
selectively, permit transmission of the images to a ship or ground
station. The images are typically input from a video sensing device
located in the aircraft and also controlled by the pilot.
[0003] Over the last several years a need has developed for better
image recording, capture, playback and transmission techniques on
board these aircraft. The current systems, such as, by way of
example, the TEAC V1000 Video Tape Recorders (VTRs), only permit
twenty minute or less recording capability and must be scrolled in
order to find specific images in the recording. Further, if a
specific image is to be displayed as a still frame on the cockpit
monitor, the recorder is stopped and live images cannot be recorded
by the video during this interruption.
[0004] It is also desirable that the recording system be expanded
to include cockpit audio, telemetry signals, GPS (Global
Positioning System) signals and other data signals available for
monitoring the performance of the aircraft and for increasing the
amount of information associated with the video signals.
SUMMARY OF THE INVENTION
[0005] The multifunction remote control system of the subject
invention is specifically directed to an enhanced video recording,
transmission and playback system for aircraft. The system is
capable of not only recording, transmitting and playing back video
images but is also adapted for recording, transmitting and playing
back audio, telemetry, GPS and other data signal in synchronization
with the video signal. One important unique feature of the
invention is the incorporation of a single, multifunction remote
control unit for controlling all the recording, capture,
transmission and playback functions at the fingertips of the
pilot.
[0006] The system of the subject invention utilizes a digital image
capture system capable of operating as a recorder and playback unit
as well as a transmission system for transmitting full motion,
selected still frame and combined full motion and still frame video
images to an on board monitor or to a ship or shore station. One of
the important features of the invention is the capability to
capture and transmit a still image on the fly while the recorder is
still functioning. This is made possible by incorporating a digital
image capture device that receives and captures the images being
entered on the recording medium without interfering with the
recording function. This also allows for better quality still
images by permitting the capture and transmission of a full frame
video image instead of the partial frame, single field still images
of the prior art.
[0007] In operation, the recorder may be paused in typical fashion
in order to view a single frame. As with prior art systems, this
will pause the recording function and the single still frame be a
typical analog frame with a partial field image, often including
the typical tearing which is a standard paused playback artifact.
However, if the specific image is desired to be captured and
transmitted, the operator (or pilot) will select the capture mode
and the system will back up a preselected number of frames and then
forward through the selected still in order to digitally capture
the selected image as a full frame image. This eliminates the fuzzy
quality of single field images and eliminates the tearing, as well,
resulting in a more reliable, sharper image for monitoring on site
or for transmission to a remote location.
[0008] The system also permits on the fly capture of still frames
without interrupting the recording cycle. In both the record and
pause modes and the record and capture mode, the resulting captured
signal is a sharp, full field (or full resolution) signal with a
minimum of noise.
[0009] Another important feature of the invention is the capability
for "marking" the recorded medium for later selecting, and
capturing selected stills. During the recording mode, this marking
function permits selection for later seek and capture either during
later playback after completion of a mission, or during the mission
directly in the cockpit, using the cockpit monitor. When the media
is in the playback mode, the "marked" stills may be either
automatically captured and stored and/or transmitted as full frame
digital stills, or the system may be used to manually scroll
through the recording one-by-one or automatically scroll through
all of the selected, marked stills for sequential viewing/and or
transmission. This capability is particularly useful for
verification of visual data, such as, by way of example, the visual
verification of a target by a ship or shore station.
[0010] Another important feature of the invention is the automatic
"reset" feature, where the beginning of each mission is marked on
the recording medium and the counter point is noted or reset to
zero. This permits ready identification of the beginning and end of
each mission and permits the operator or pilot to automatically
return to the beginning of each mission to review the recorded
images and data without searching for the start point.
[0011] The digital capture capability of the subject invention
permits continuous real time recording of video and other data
while simultaneously permitting the pilot or other operator to
select a "freeze" frame, permitting close analysis of a specific
view without interrupting the recording process. The
recorder/playback systems of the prior art require interruption of
the recording process during a freeze-frame or pause mode. One
important aspect of this feature is the ability to not only view
the select "freeze" frame, but also to capture, store and/or
transmit the frame to a remote station.
[0012] The versatility of the system of the subject invention
permits transmission of the full motion image both in real time, or
as a played back recording, as well as still frames of selected
images and burst modes. The burst mode is a selection of sequential
still images over a selected time frame. For example, assuming a
target is identified and destroyed, it may be desirable to select a
sequential series of still images at specific timed intervals, e.g.
every one-fourth of a second, for five seconds before and twenty
seconds after destruction, while at the same time simultaneously
recording the full image on tape without interruption. The burst
mode is more fully described in my co-pending application entitled:
Video and Data Capture and Retrieval Surveillance System for
Aircraft, Ser. No. 08/729,139, filed on Oct. 11, 1996; Acoustic
Catastrophic Detection and Data Capture and Retrieval System for
Aircraft; Ser. No. 08/738,487, filed on Oct. 28, 19961 and Wireless
Transducer Data Capture and Retrieval System for Aircraft, Ser. No.
08/745,536, filed on Nov. 12, 1996 and incorporated by reference
herein.
[0013] One advantage of the system of the present invention is the
capability for recording not only video signals but also cockpit
audio and telemetry, GPS and other data signal as well, in a real
time, synchronized relationship with the video image. The data
signals are displayed in alphanumeric symbols with the video image
in both the full motion and still frame mode. The audio portion is
recorded for playback and transmission in the full motion mode. The
data signals can be used as part of the marking function. For
example, specific still frame images could be selected based on GPS
data for capture and storage, as well as for transmission.
[0014] One of the most significant advantages of the subject
invention is the inclusion of all the functional and operating
controls in a single remote control unit easily accessed by the
pilot in the cockpit. This permits easy access and control of the
system during flight, permitting full use of the multifunction
capability of the system. In the preferred embodiment, Phototelesis
ATR-403WB and RCU-403 capture and transmission modules are combined
with a TEAC HI 8 V80 VTR recorder/playback unit. This can be
activated during both the recording mode and the playback mode.
These components are combined and programmed with the novel
features of the subject invention to provide the versatile,
multifunction system. The single, multifunction remote control unit
is then utilized to not only control the recorder record and pause
and playback function but also to control the select, capture and
transmit functions of the processor.
[0015] It is, therefore, an object and feature of the subject
invention to provide for a versatile, accessible, multifunction
recording and playback system for recording video images on board
an aircraft during flight.
[0016] It is also an object and feature of the subject invention to
provide for a single, multifunction control unit for controlling
all recording, selection and capturing, transmission and playback
functions of the system.
[0017] It is another object and feature of the subject invention to
provide for a combination video, audio and data recorder having a
single remote control unit for controlling all of the functions
from a single control unit.
[0018] It is yet another object and feature of the subject
invention to provide for a multi-media recording, transmission and
playback system which is capable of selecting, displaying, storing
and transmitting still full field still frame images without
interruption of the real time recording of full motion images.
[0019] It is also an object and feature of the subject invention to
permit marking of selected stills, bursts or sections of full
motion image segments via operator controlled selection, or
selection based on predefined criteria such as time sequencing, GPS
data or other.
[0020] Other objects and features of the invention will be readily
apparent from the accompanying drawing and detailed description of
the preferred embodiment.
BRIEF DESCRIPTION OF THE DRAWINGS
[0021] FIG. 1 is an overview of some of the platform configurations
for which the system of the subject invention is suited.
[0022] FIG. 2 is a system interface diagram.
[0023] FIG. 3 is a more detailed diagram of a system having the
components as shown in FIG. 2.
[0024] FIG. 4 is an alternative embodiment incorporating an
MIL-ST-1553 data bus.
[0025] FIG. 5 is an alternative embodiment incorporating a platform
computer associated with the system of the subject invention.
[0026] FIG. 6 is a block diagram of central processing unit of the
system.
[0027] FIG. 7 is a block diagram of the remote control unit of the
system.
[0028] FIG. 8 is an enlarged view of the remote control unit shown
in FIG. 2.
[0029] FIG. 9 is a menu flow chart for the system.
[0030] FIGS. 10a, 10b and 10c are an expanded menu readout display,
showing the alphanumeric display for each of the menu selections of
FIG. 9.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0031] A system overview is shown in FIG. 1. The system is adapted
for use in any type of platform permitting not only the recording,
capture, transmission and playback of video information, but also
the mating of data signals and audio signal with the video
information. The platform used as an example throughout this
disclosure is a fixed wing military aircraft 1, such as, by way of
example, the Navy F-14 Tomcat. The multi-function system of the
subject invention permits data to be used on board the aircraft, as
well as transmission and receipt of data between a remote station
such as a ship or ground based station 2. Images and data can be
downlinked directly to the base station and configuration and
control data and signals uplinked to the aircraft via radio
transmission. The system of the present invention also accommodates
air-to-air transmissions, as between the fixed wing aircraft 1 and
the rotary winged aircraft 3, or air-to-sea transmissions, as
between the fixed wing aircraft 1 and the marine vessel 4, or to
ground as with the fixed winged aircraft 1 and the military vehicle
5 or the civilian vehicle 6. Any of a variety of combinations is
possible. While the following description is directed primarily to
communication between fixed wing aircraft and a ship or ground
based system, it should be understood that the invention
encompasses any combination of base and object stations or
units.
[0032] As shown in FIG. 2, the system of the subject invention
comprises a central processor unit 10, a recorder/playback unit 12,
a base or interface unit 14 and a multifunction, single remote
control unit 16. In the preferred embodiment, the central
processing unit 10 is a Phototelesis A72-403WB and the remote
control unit 16 is a Phototelesis RCU-403WB. The recorder/playback
unit 12 is a TEAC HI 8 V80 VTR system. The access door 18 provides
access to the HI 8 V80 tape cassette which is capable of up to two
full hours of real time recording.
[0033] The remote control unit 16 is connected to the central
processor 10 at connector J10 via cable 20. Wireless remotes may
also be incorporated in the system without departing from the scope
and spirit of the invention. A 28VDC power signal is provided via a
cable connection at the J2 connector in the interface unit 14. The
monitor system 21 comprises the 22 Lanterin Control Panel
(optional), the PTID display 24 and the VDI display 26. These are
connected to the system via cable system 28 at connector J4 in the
interface unit. An ICS/DATA signal is connected via connector J3.
The TCS video module 29, the video source, is connected via
connector J5. The 28VDC power signal is transmitted from the
interface unit 14 to the central processor 10 via a cable system 30
between connectors J7 and J13. Communication and control signals
are transmitted between the central processor and the interface
unit via cables connected to connector J3 in the interface unit and
connector J11 and J12 in the processor unit. The main power switch
is SW1 in the interface unit. The recorder/playback unit 12 is
connected to the central processor via a cable system 30 between
connectors J1 and J2 on the recorder playback unit, J15 on the
Interface unit and connector J9 on the processing unit 10. A signal
light LED 1 is provided on the central processor to indicate that
the processor is powered and operational.
[0034] Once the system is powered up, all of the functions are
controlled by the single remote control unit 16 which includes a
plurality of function buttons 32 and an alphanumeric display panel
34.
[0035] As shown in more detail in FIG. 3, the system of the subject
invention is adapted for interfacing with a telemetry and GPS data,
as indicated by the GPS receiver 40 and the aircraft interphone 42.
In a standard application, the central processing unit can transmit
and receive radio signals from a ship, ground or other aircraft
radio via antenna 44, radio link 46 and, where desired, an
encryption unit 48.
[0036] The video switching module 50 is housed in the interface
unit 14. Switch A in the video switching module 50 permits
selection between any of a plurality of video sensors such as video
sensors A and B, as shown. These may be manually selected via the
remote control unit 16, or programmed selection may be utilized as
programmed at the central processing unit 10. A controller module
52 receives the control and selection signal input on the data line
54 which is an RS-232 data line connected to data port 4 of the
central processing unit. The processor video input select switch B
is also provided in the video switching module and is controlled by
the controller 52 and selects the sensor sources or the
recorder/player output for capture/processing/storage/transmission.
A display monitor input select switch C is also provided for
selecting either the recorder/player unit output on line 56 or the
processing unit output on line 58.
[0037] As shown in FIG. 3, the data signals from the GPS receiver
and other data signal are introduced into the processor 10 for
conditioning and input for recording at the data/control port of
the recorder/player 12 and permit for digital storage, and
transmission. This permits the data signals to be recorded in
simultaneous, real-time mode with the video signals input from the
video sensors A and B. The audio signal from the interphone 42 is
also input to the processor 10 and the recorder/player unit 12 for
real time, synchronized recording.
[0038] An optional high speed radio link 47, may also be provided
to support full motion transmission capability and is linked to the
high speed radio port of the processing unit 10 through the
optional encryption unit 49. The antenna 45 permits downlinking to
a base station via wireless radio. This high speed full motion
capability could be incorporated in any of the various
configurations of the invention. Compression of the video signal
with a compressor algorithm such as MPEG 1 is desirable.
[0039] An alternative embodiment is shown in FIG. 4 and
incorporates an MIL-STD-1553 data bus for connecting the display
21, the GPS and/or other data signal modules 40 and the radio and
data controller 48 to the system. The radio interphone system 60 is
also expanded to include additional audio channels. A VDU input
matrix module 62 is provided for controlling the various video
input signals to the cockpit integrated display 21. This is
controlled by the platform controller computer 70 which is also
connected to the display 21 and the processor unit 10 by the
MIL-STD-1553 data bus.
[0040] The 1553 bus is one common standard for interconnection of a
plurality of data devices on military airborne or ground platforms.
It is the equivalent of a local area network (or LAN). Other
networking devices can be utilized without departing from the scope
and spirit of the invention. Many different sensors and data signal
generators may be connect to the 1553 bus, and data may be fused
with imagery for recording, digital storage or transmission.
Examples of sensors that may be utilized in connection with the
subject invention and communicate and interact of the 1553 bus are:
GPS receivers, magnetic compass system, laser range finders, a time
source, the aircraft altimeter, and FLIR data, azimuth, range and
location sensors. This greatly expands the versatility of the
recording, capturing, transmission and playback capabilities of the
system of the subject invention.
[0041] Data received by the 1553 bus may be processed and stored
digitally with the processing unit 10, or may be encoded and stored
on the recorder/player unit 12, or both. This allows for the
capture and retrieval of a wide variety of real time mission data
in connection with the mission video signals. The control of the
processing unit 10 and the recorder/player unit 12 can be
accomplished from the integrated VDU/key unit and the platform
control computer over the 1553 bus. Digital data, such as video,
audio, telemetry data, control commands, and the like may be
communicated between the processing unit and the radio link (at 48)
over the 1553 bus. In this manner, control commands can be
transmitted from a remote station to the platform by using the
common data link available to the platform.
[0042] Another embodiment of the subject invention is shown if FIG.
5. In this embodiment, the various components and data entry
devices correspond to those shown in FIGS. 3 and 4. However, a
platform computer 70 has been incorporated to illustrate the
adaptability of the device to vehicles having a conventional PC
(personal computer) or a platform specific computer capability. In
this configuration, the multifunction system of the subject
invention may be controlled via the platform computer. Video is
displayed on the computer VDU 72 by digitizing the video and
merging it with the computer generated video in a display window.
In addition, a window is provided for the commands of the system,
replacing the remote control unit 16. The communication connection
78 between the processing unit 10 and the platform computer 70 may
be an RS-232 cable, a LAN connection such as Ethernet MM-STD-1553,
or any other data communications link. Other platform data, such as
data from other sensors and computers, can be linked into the
system from a LAN 76 or other direct communication connections. The
computer keyboard 74 permits direct command and data entry into the
platform computer. A mouse input device or other similar input
means could also be used.
[0043] A block diagram of the basic components of the central
processing unit 10 is shown in FIG. 6. A remote 28VPC power source
is connected as shown in FIG. 2 and as indicated at 100. This is
introduced into a DC/DC convertor 102 for powering the cooling fan
104 and providing system power at 106. When power is on, the pilot
light LED 1 is illuminated. The heart of the processor 10 is a
Pentium class CPU 108, which is connected to a PCMCIA memory card
110, RAM memory 112 and ROM memory 114, as well as the BIOS system
116 via an address bus 118 and a data bus 120. The CPU 108 controls
the PCMIA, RAM, ROM and BIOS components via the control bus 122.
The various components controlled by the CPU 108 via the control
bus for handling the flow of data and information on bus 124 are
all interconnected via the bus 124, as shown. The audio interface
126 permits communication with an analog radio interface and the
platform interphone system 42 (See FIG. 3). The synchronous
communications interface 128 provides the communications link
between the CPU 108 and the digital encryption/radio interface 48
(also FIG. 3). An option 1553 bus interface 130 for use with the
configuration shown in FIG. 4 is also provided. The RS-232
interface 132 provides communications links to the various RS-232
devices such as the GPS receiver 40, the remote control unit 16,
the platform computer 70, the video switching module 50, and the
like. The RS-422 interface 134 is the link between the CPU 108 and
the recorder/player component 12, other interfaces may be used. An
optional LAN interface is also provided for supporting, by way of
example, a LAN interfaced platform computer 70 as shown in FIG. 5.
Video display logic is provided at 138 for supporting a CRTIVDU
display device 21. The video frame capture device 140 supports the
capture function directly from the video sources such as sensors A
and B, thereby permitting video capture without interrupting the
recorder 12. A "feature connector" interface allows full motion
data between the Video Frame Capture input and the Video Display
Logic. The optional MPEG compressor 142 provides the high speed
interface for supporting full motion transmission via the high
speed radio link 47 (see FIG. 3).
[0044] A block diagram of the remote control unit 16 is shown in
FIG. 7, the remote control unit. Is also powered by the platform
power supply with a 28VDC power signal as shown at 150. The power
signal is introduced to the DC/DC convertor 152 for providing
system power at 14. The control signals from the system processor
10 are input and output on the RS-232 line 156 via the respective
receiver 158 and driver 160. These signals are introduced into a
microprocessor 162 via the serial input/output port 164. The
microprocessor system includes a FLASH-RAM 166, a RAM 168 and a ROM
170, in communication with the microprocessor 162 via data bus 172,
address bus 174 and control bus 176. A data bus 178 links the
parallel display bars LED 180 and LED 182 with the microprocessor,
and also links the various control buttons 32 with the
microprocessor. In the preferred embodiment, the control buttons 32
are the input device for the system.
[0045] As better shown in FIG. 8 the control buttons 32 are dynamic
function buttons located on the face of the remote control unit 16
in a row underneath the dual LED displays 180 and 182. The function
of each button is dynamic, i.e., the function changes based on the
stat of the system and the user interface. The specific function is
shown in the LED row and is positioned directly above the button.
This method permits maximum versatility with a minimum number of
buttons (Six in the preferred embodiment).
[0046] The versatility of the system is demonstrated by the menu
commands utilized in the preferred embodiment, all accomplished
with the six dynamic control buttons on the remote control unit
16:
Recorder/Player Commands & Summaries:
[0047] Standby (STOP)
[0048] Record
[0049] Play
[0050] Rewind
[0051] Fast Forward
[0052] Forward Search
[0053] Reverse Search
[0054] Unthread
[0055] Reset Counter
[0056] Event Mark
Recorder/Player Status (Message) Summary:
[0057] Standby
[0058] Recording
[0059] Play
[0060] Rewind
[0061] Fast Forward
[0062] Scan Forward
[0063] Scan Reverse
[0064] Unthread
[0065] Counter (Hours:Minutes:Seconds)
[0066] End of Tape (EOM)
[0067] Beginning of Tape (BOT)
[0068] Internal Error
[0069] Command Error
[0070] Communications Error
[0071] Event Mark
[0072] Dew (Condensation)
Image Store/Transmission Command Summary:
[0073] Send
[0074] Send and Delete
[0075] Set Send-to Call Sign
[0076] Set Local Call Sign
[0077] Capture
[0078] Capture & Send
[0079] Set SNAP/BURST Mode
[0080] Set Burst number
[0081] Set Burst Interval
[0082] Review Image Buffer
[0083] Scroll Forward
[0084] Scroll Reverse
[0085] Mark Image
[0086] Delete Image
[0087] Purge Buffer
[0088] Find Mark & Capture
[0089] Find Mark Capture and Send
[0090] Find All Marks & Capture
[0091] Find All Marks Capture & Send
[0092] Communications Abort
[0093] Select Input "N"
[0094] View Recorder
[0095] View Input
[0096] View Processor
[0097] Select Compression
[0098] Set Resolution
[0099] Input Type (S-video, composite, other)
Image Store/Transmission Summary:
[0100] Sending to "XXXX"
[0101] Receiving from "YYYYY"
[0102] Communications Error
[0103] A flow chart of the menu capability is shown in FIG. 9,
initiating at Main Menu 200. Each of the selections 15 accessed by
activating the various dynamic button switches 32 (See FIGS. 2, 3
and 8). As indicated by the flow chart, the menu is scrolled
through with the display shown in the parallel display bars LED 180
and LED 182 (FIG. 8). A more detailed menu/display correlation is
shown in FIGS. 10a, 10b and 10c. Beginning at the Top Level Menu
202, reflecting the recorder state, the top display 180 shows
various counter functions and the bottom display 182 illustrates
the button function of the button switch 32 immediately below the
display panel. As shown, the top level first position is the Record
menu 204, the Play menu 206, the Standby menu 208 and the Unthread
menu 210. This same display regimen is followed for each of the
other Menu Levels which are activated as indicated in the
drawing.
[0104] While certain features and embodiments of the invention have
been described in detail herein it will be readily understood that
the invention encompasses all of modifications, enhancements and
improvements within the scope of the following claims.
* * * * *