Digital Camera Patent Abstract
A simplified electronic camera and printer imaging system is provided
that includes a single intelligence circuit preferably in the form
of a PC card that is detachably connectable to either the camera
or the printer for converting a data stream generated by the imaging
sensor of the camera into stored data when connected to the camera,
and converting the stored data into printer instructions, and relaying
the printer instructions to the printhead when connected to the
printer. The use of a single intelligence circuit to operate both
a digital camera and printer advantageously simplifies the structure
of the system, reduces costs, and enhances reliability by minimizing
processing steps and circuit interfaces. In the preferred embodiment,
the PC card containing the intelligence circuit includes a liquid
crystal display and manual controls for displaying stored or real
time images, capturing or erasing images, scrolling through stored
images, and commanding a printer to render the images in hard copy
form. Digital Camera Patent Claims
What is claimed is:
1. An intelligence card with a display for use with a digital camera,
the camera including an imaging sensor for generating a stream of
data representative of an image and a first memory for storing programmed
instructions, and for use with a printer, the printer including
a second memory for storing programmed instructions, comprising:
an intelligence circuit including a microprocessor and a third memory,
the intelligence circuit comprising a module and being detachably
directly connectable as a module to both the camera for converting
said data stream into stored data on the third memory, and to the
printer for generating printer instructions from said stored data
to print said image, the intelligence circuit including the display
and a display interface and the intelligence circuit being adapted
when connected as a module directly to the camera to have the display
interface cooperate with the first memory to provide functionality
to the display as a camera view finder for use by a camera operator
and being adapted when the intelligence circuit is detached from
the camera and connected as a module directly to the printer to
have the display interface cooperate with the second memory to provide
a different functionality to the display that is consistent with
the printer and the microprocessor being adapted when connected
to the camera to support camera operations as the only microprocessor
controlling the camera and the microprocessor being further adapted
when connected to the printer to support printer operations as the
only microprocessor controlling the printer.
2. An electronic imaging system comprising: a camera having an
imaging sensor for generating a stream of data representative of
an image, the camera having a first memory that includes programmed
instructions; a printer having a printhead for generating an image
from a set of printer instructions, the printer having a second
memory that includes programmed instructions; and a single intelligence
circuit, including a microprocessor, in the form of a removable
module that is detachably connectable directly to said camera and
said printer so that one or the other but not both is attached and
connected to the intelligence circuit for converting said data stream
from said imaging sensor into printer instructions, and transmitting
said instructions to said printhead, the intelligence circuit including
a display and a display interface and when the intelligence circuit
is connected to the camera the display interface cooperates with
the first memory to provide functionality as a camera view finder
for use by a camera operator and when the intelligence circuit is
connected to the printer the display interface cooperates with the
second memory to provide a different functionality that is consistent
with the printer and wherein when the intelligence circuit is connected
to the camera the microprocessor comprises the only microprocessor
operating the camera and when the intelligence circuit is connected
to the printer the microprocessor comprises the only microprocessor
operating the printer.
3. The electronic imaging system of claim 2, wherein said intelligence
circuit includes a PC card that is mechanically and electrically
connectable to and removable from either said camera or said printer.
4. The electronic imaging system of claim 2, wherein said printer
includes a printhead driver circuit for controlling mechanical movement
of said printhead relative to an image recording medium in response
to printer instructions transmitted by said intelligence circuit.
5. The electronic imaging system of claim 2, wherein said printer
includes a printhead controller circuit for controlling the amount
of a coloring agent deposited onto an image recording medium by
said printhead in response to printer instructions transmitted by
said intelligence circuit.
6. The electronic imaging system of claim 5, wherein said printer
includes a power supply that is modulated by a printhead driver
circuit for providing electrical power to an electric motor for
moving said printhead.
7. The electronic imaging system of claim 6, wherein said printer
includes a power supply that is modulated by said printhead controller
circuit for providing electrical power to elements in the printhead
that deposit coloring agents on an image recording medium.
8. The electronic imaging system of claim 2, wherein the second
memory stores a program that controls the operational coordination
of components comprising the printer.
9. The electronic imaging system of claim 2, wherein the camera
includes a power source, and the first memory stores a program that
controls the operational coordination of components comprising the
camera.
10. The electronic imaging system of claim 9, wherein said program
stored in the first memory coordinates the operation of a lens focusing
assembly, a flash unit, an iris diaphragm for controlling the amount
of light admitted to the imaging sensor from a lens, and an electronic
shutter in said camera.
11. An electronic imaging system comprising, a camera having an
imaging sensor for generating a stream of data representative of
an image; a printer having a printhead for generating an image from
a set of printer instructions, and a modular intelligence circuit
detachably connectable to said camera and said printer so that one
or the other but not both is attached and connected to the intelligence
circuit for converting said data stream from said imaging sensor
into printer instructions, and relaying said instructions to said
printhead and wherein the intelligence circuit includes a microprocessor
and the microprocessor is the only microprocessor that performs
the intelligence functions of the camera when connected to the camera
and the microprocessor is the only microprocessor that performs
the intelligence functions of the printer when attached to the printer,
and wherein said modular intelligence circuit includes a PC card
having a display for displaying an image constructed from printer
instructions generated by said intelligence circuit.
12. The electronic imaging system of claim 11, wherein said PC
card includes a manually operated control for capturing and storing
a displayed image.
13. The electronic imaging system of claim 12, wherein said PC
card includes a manually operated control for scrolling through
a plurality of captured images.
14. The electronic imaging system of claim 12, wherein said PC
card includes a manually operated control for erasing a selected
stored image.
15. The electronic imaging system of claim 11, wherein said printer
includes an electric motor for moving said printhead relative to
an image recording medium, and a printhead driver circuit for controlling
the operation of said motor to control the movement of said printhead.
16. The electronic imaging system of claim 15, wherein said printhead
includes elements for depositing coloring agents onto said medium,
and a printhead controller circuit for controlling the operation
of said elements.
17. A method for generating an image by means of a camera having
an imaging sensor for generating a stream of data representative
of an image and a first memory for storing programmed instructions,
a printer for rendering an image in accordance with a set of printer
instructions, the printer including a second memory for storing
programmed instructions, and an intelligence circuit comprising
a module having a central processing unit, a display and a third
memory, the method comprising the steps of: connecting said intelligence
circuit directly to said camera by attaching said intelligence circuit
directly to said camera to convert said stream of data from said
imaging sensor into a set of stored data using said programmed instructions
stored in said first memory, said intelligence circuit including
a microprocessor and said microprocessor being the only microprocessor
that performs the intelligence functions of the camera when the
intelligence circuit is connected to the camera and the display
of the intelligence circuit operating as a view finder for a camera
operator to capture an image when the intelligence circuit is connected
to the camera; disconnecting said intelligence circuit from attachment
with said camera, and connecting said intelligence circuit directly
to said printer by attaching said intelligence circuit directly
to said printer to convert said set of stored data into printer
instructions and to relay said printer instructions to said printer
to render an image in accordance with said printer instructions
and in accordance with programmed instructions stored in said second
memory, wherein when the intelligence circuit is connected to said
printer the microprocessor is the only microprocessor that performs
the intelligence functions of the printer and the display of the
intelligence circuit operates when attached to said printer to permit
a printer operator to scroll through images representative of said
stored data.
18. The method for generating an image as defined in claim 17,
wherein said intelligence circuit is both electrically and mechanically
disconnected from said camera after converting said data stream
into stored printer instructions.
19. The method for generating an image as defined in claim 18,
wherein said intelligence circuit is both electrically and mechanically
connected to said printer after being disconnected from said camera.
20. An electronic imaging system, comprising: first and second
imaging system components each of which requires a primary intelligence
circuit for operation, each of said imaging system components including
a respective memory associated therewith and storing information
relative to operation of a display, and an intelligence circuit
in the form of a module and having a central processing unit, the
intelligence circuit being detachably and directly connectable to
each of said system components for providing the required primary
intelligence circuit and comprising the only central processing
unit controlling operation of said system component, the intelligence
circuit including the display and a display interface and when the
intelligence circuit is connected to the first imaging system component
the display interface cooperates with the respective memory associated
with the first imaging system component to provide a functionality
consistent with the first imaging system component and when the
intelligence circuit is connected to the second imaging system component
the display interface cooperates with the respective memory associated
with the second imaging system component to provide a functionality
consistent with the second imaging system component.
21. The imaging system of claim 20 and wherein the first imaging
system component is a digital camera and the display cooperates
when attached to the camera to comprise a view finder for a camera
operator.
22. The imaging system of claim 21 and wherein the second imaging
system component comprises a printer.
23. The imaging system of claim 21 and wherein the second imaging
system component comprises a photo-album.
Digital Camera Patent Description
BACKGROUND OF THE INVENTION
This invention generally relates to a system and method for using
a single intelligence circuit in both a digital camera and printer,
and is specifically concerned with the use of a single PC card to
perform the primary data processing operations in both a digital
camera and printer to simplify the structure of a camera/printer
imaging system.
Techniques for simplifying the structure of components used in
digital imaging systems to reduce manufacturing costs are known
in the prior art. For example, in the camera system disclosed in
U.S. Pat. No. 5,506,617, and assigned to the Eastman Kodak Company,
a digital camera is provided as a module that attaches to the signal
bus of a PC compatible computer. This system advantageously eliminates
the need for a separate intelligence circuit to be incorporated
within the camera itself, as the camera in this system includes
a PC-compatible interface connector for mating with a bus extension
connector on the computer. Digitized data is directly transmitted
from the camera to the signal bus of the computer so that the intelligence
circuits of the computer can be used to perform all image processing,
storage, and display functions. The elimination of the camera intelligence
circuit not only simplifies the circuit architecture, but substantially
reduces camera manufacturing costs as the microprocessor used in
such circuits costs between $20.00 and $40.00 depending upon the
speed and operating abilities required.
While the camera-computer system disclosed in the '617 patent represents
a significant advance in the simplification of digital camera circuitry,
its utility is limited since the digital camera must be continuously
connected to the PC compatible computer during both the capturing
and displaying of images.
Clearly, there is a need for a completely portable, untethered
digital camera that is fully capable of recording images without
its own dedicated and relatively expensive microprocessor. Ideally,
such a camera could be used in conjunction with a relatively inexpensive
thermal or ink-jet printer to produce hard copies of images in photographic
form. Finally, it would be desirable if the circuit-simplifying
design of the digital camera also allowed the circuitry of the printer
to be similarly simplified so that even larger reductions in manufacturing
costs could be realized.
SUMMARY OF THE INVENTION
Generally speaking, the invention is an electronic imaging system
that utilizes a shared intelligence circuit to fulfill all of the
aforementioned criteria. The system of the invention comprises first
and second imaging components for capturing and rendering an image,
respectively, each of which requires a primary intelligence circuit
for operation, and an intelligence circuit that is detachably connectable
to either of the imaging components during their operation. The
system may, for example, comprise a camera having an imaging sensor
for generating a stream of data representative of an image, a printer
having a printhead for generating an image from a set of printer
instructions, and a single intelligence circuit in the form of a
PC card that is detachably connectable to either the camera or the
printer for the operation of either. In the method of the invention,
the intelligence circuit is first detachably connected to an image
capturing component, which may be a camera, in order to convert
data stream from an imaging sensor into stored image data. Next,
the intelligence circuit is manually removed from the image capturing
component, and detachably connected to the image rendering component,
which may be a printer. The image rendering component in turn renders
an image in accordance with instructions relayed from the intelligence
circuit that are generated from the stored image data.
The use of a single intelligence circuit to operate both a camera
and a printer of an imaging system advantageously simplifies the
system by obviating the need for separate and largely redundant
intelligence circuits presently used in both the camera and the
printer, thereby reducing manufacturing costs. The use of a single
intelligence circuit also enhances the overall reliability of the
imaging system by reducing processing steps and component interfaces.
In the preferred embodiment, the intelligence circuit is a PC card
having a liquid crystal display for displaying either a real-time
or a stored image constructed from instructions generated by the
microprocessor of the circuit. The PC card preferably includes manually
operated controls for capturing, storing, erasing, and scrolling
through images generated by the imaging sensor of the camera.
In one embodiment of the system, the intelligence circuit within
the PC card not only stores data from the imaging sensor of the
camera, but further includes stored camera and printer-model operating
programs for both the camera and the printer that are specific to
the particular model and make of the camera and printer. In an alternative
embodiment, both the camera and the printer include their own individual
stored operating programs in the form of EPROMs. The second embodiment
of the system has the advantage of allowing the intelligence circuit
to be more versatile, as it can be used in conjunction with a variety
of different models of cameras and printers having different features
and operational capacities, i.e., zoom lens capabilities, picture
editing features, etc.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic diagram of the electronic imaging system
of the invention, illustrating how a single, portable intelligence
circuit is used to operate either a digital camera or a printer;
FIG. 2 is a schematic block diagram of the intelligence circuit
of the system, and
FIG. 3 is a plan view of the PC card that houses the intelligence
circuit of FIG. 2, illustrating the liquid crystal display and manual
controls of the card.
DETAILED DESCRIPTION OF THE INVENTION
With reference now to FIG. 1, wherein like numerals designate like
components throughout all the several figures, the imaging system
1 of the invention may comprise a digital camera 3, a printer 5,
and a shared PC intelligence card 7 which is detachably connectable
to either the camera 3 or the printer 5.
The digital camera 3 includes a lens unit 11 disposed within a
movable tubular housing 12 for gathering reflected light from a
subject 13 to be photographed. A lens focusing assembly 15 which
includes a small DC motor 17, battery pack 19 and gear train 21
is provided for reciprocally moving the tubular housing 12 of the
lens unit 11 in a manner well known in the art.
Digital camera 3 further includes a flash unit 23 which is likewise
powered by the battery pack 19 via connector wire 24, and a photometer
25 for measuring the amount of ambient light in the vicinity of
the subject 13. Disposed behind the lens unit 11 are an electronic
iris diaphragm 27, electronic shutter 29, infrared filter 31, and
imaging unit 33, which may be a charged coupled device (CCD) sensor,
such as KAF-400 full frame sensor manufactured by the Eastman Kodak
Company located in Rochester, N.Y. While not shown in FIG. 1, components
27,29 and 33 are each connected to and driven by the battery pack
19. In operation, light from a subject 13 is focused onto the surface
of the imaging unit from the lens unit 11. The imaging unit includes
a 640.times.480 pixel matrix of individual light sensitive elements
which collectively generate a data stream representative of the
subject 13.
The digital camera 3 may optionally have any erasable programmable
read-only memory (EPROM) 36 which contains an operating program
that coordinates the functions of the lens-focusing assembly 15,
the flash unit 23, the electronic diaphragm 27 and shutter 29, as
well as the activation of the imaging unit 33 whenever the shutter
29 is activated. Finally, the camera 3 includes both a card-receiving
slot 38 for receiving the flat, rectangular body of the PC card,
as well as a terminal 40 for engaging a row of input and output
contacts 41 disposed along an edge of the card 7. In the preferred
embodiment, the digital camera 3 may have a structure that is essentially
identical to that of the Model DC110 or 220 digital camera manufactured
by the previously-mentioned Eastman Kodak Company, the only differences
being the replacement of the primary microprocessor and associated
programming and memory circuits with the aforementioned card-receiving
slot 38 and terminal 40.
In this example, the printer 5 comprises a thermal printing unit
44 connected to control and power circuitry 46, although ink-jet
and other types of printers may be used as well. The printing unit
44 is formed from a ribbon advancing assembly 48 and a printhead
mechanism 50, both of which cooperate to thermally render an image
onto a sheet of thermal printing paper 52. A movable platen roller
54 supports the printing paper 52 as the printhead mechanism 50
sweeps over it to render an image thereon.
The ribbon-advancing assembly 48 includes a drive roller 56 connected
to the shaft 57 of an electric motor 58 for unwinding a strip of
thermal print ribbon 60 from an opposing spool roller 62. The thermal
print ribbon 60 is formed from serially connected portions 64 containing
cyan, yellow, and magenta coloring agents, respectively. Thermal
printing unit 44 further includes a thermal printhead 66 having
a linear row of closely spaced heating elements 68 for depositing
coloring agents from the thermal print ribbon 60 onto the thermal
printing paper 52 by fusion. A paper moving mechanism 70 is provided
for moving the thermal printing paper 52 across the thermal matrix
printhead 66 while a selected pattern of the heating elements 68
are actuated in order to deposit an image-forming pattern of coloring
agents onto the paper 52. Like the drive roller 56 of the ribbon
advancing assembly 48, the paper moving mechanism 70 is mechanically
powered by the output shaft 57 of the electric motor 58.
The control and power circuitry 46 of the printer 5 includes a
printhead driver and ribbon advance circuit 75 whose output is connected
to the electric motor 58 via cable 76. Circuitry 46 also has a printhead
controller circuit 77 electrically connected to the heating elements
68 of the thermal matrix printhead 66 via a cable 78. Finally, circuitry
46 includes a power supply 79 which is connected in parallel to
the outputs of the circuits 75 and 77. Essentially, the circuits
75 and 77 are power switching circuits formed from an array of power
semiconductors whose outputs are modulated by the low-current printer
instructions generated by the PC card. In addition to the circuits
75, 77, and 79, the control and power circuitry 46 may further include
a EPROM 81 containing an operating program which coordinates the
movement of the drive roller 56, paper moving mechanism 70, and
the actuation of the heating elements 68. The inclusion of the optional
EPROMs 36 to the camera 3 and 81 to the printer 5 advantageously
allows the intelligence circuit within the PC card 7 to operate
a variety of different imaging systems formed from cameras and printers
having different features and capabilities, such as zoom lensing,
various picture editing abilities, etc. Finally, similar to the
digital camera 3, the printer 5 likewise includes a card-receiving
slot 83 for receiving the body of the PC card 7 along with a terminal
85 for engaging the input and output contacts 41 present along an
edge of the card 7. The overall structure of the printer 5 may be
the same as a Model No. DS 8650 thermal printer manufactured by
the Eastman Kodak Company with slot 83 and terminal 85 replacing
its microprocessor and associated circuits. Alternatively, a Kodak
Model No. HP890C ink jet printer may be used that has been modified
in the same manner.
With reference now to FIG. 2, the intelligence circuit 90 disposed
within the card 7 includes a microprocessor 92, and a button-type
battery pack 94. Preferably, microprocessor 92 is one of the commercially
available family of reduced instruction set computers (known in
the art as RISC-type processors) that are relatively fast, math
intensive, and application-specific. Examples of such processors
include the Model 821 Power PC manufactured by Motorola Corporation
located in Phoenix, Ariz., and the Model MIPSR-4000 Processor manufactured
by NEC Electronics located in Tokyo, Japan. Such processors are
fully capable of rapidly implementing the JPEG still image compression
algorithm used to control digital cameras such as the previously-mentioned
Model DC110 and 220.
The intelligence circuit 90 also includes an EPROM 96 for storing
an operating program for the microprocessor 92 that allows it to
convert the data stream received from the imaging unit 33 into printer
instructions. Any one of a number of commercially available EPROM
integrated circuits may be used for the EPROM 96 which preferably
have a capacity of about 1 megabyte. In order to store the data
generated by the imaging unit 33 of the camera 3, the intelligence
circuit further has a dynamic random access memory or DRAM 98 that
is powered by the battery pack 94. As the imaging sensor 33 preferably
has a capacity of 640.times.480 pixels, the DRAM 98 should have
a 20 megabyte capacity in order to store data for 20, one mega-pixel
images or 100 compressed images. Examples of commercially available
integrated circuits which can be used as the DRAM 98 include the
Model MCM51LXXX DRAM manufactured by Motorola, or one of the series
of AMD 29C600 DRAMs manufactured by Advance Micro Devices located
in Beaverton, Oreg. In both cases, a total of three, 8 megabyte
ICs may be used. Optionally, a flash RAM non-volatile memory may
be substituted for the DRAM 98, the advantage being that no button-type
battery pack 94 would be necessary to preserve data captured in
the memory of the intelligence circuit 90.
The intelligence circuit 90 further includes both a display driver
circuit 100 for providing instructions to a liquid crystal image
display 104, and a mechanical programmable controller 102 for providing
operational commands to the mechanical systems of the digital camera
3 and the printer 5, i.e., the lens focusing assembly 15, and the
printhead driver and ribbon advance circuit 75. Driver circuit 100
is normally part of the liquid crystal display module that forms
the image display 104, while mechanical programmable controller
102 may be an application specific integrated circuit (ASIC) manufactured
by the Eastman Kodak Company in accordance with known technology.
The intelligence circuit 90 includes a user interface circuit 106
that includes the manual controls and indicator LEDs present on
the body of the card 7. All of the components 92, 96, 98, 100, 102,
104, and 106 are interconnected via an address data and input/output
bus 107 as is schematically indicated, and with the exception of
DRAM 98, all of these components are powered by the battery pack
18 of the camera 3 or power supply 79 of the printer 5.
With reference now to FIG. 3, the card 7 includes a liquid crystal
display (LCD) screen 108. In the preferred embodiment, LCD screen
is a low temperature, polysilicon-type screen, as such screens can
be made with an overall thickness of approximately 1 millimeter
and therefore not significantly contribute to the overall thickness
of the body of the card 7. The user interface 106 includes two light
emitting diode (LED) indicators 109a and 109b for indicating whether
or not either the camera or the printer is on or off, and further
whether or not the button-type battery in battery pack 94 is running
low, thereby jeopardizing the integrity of the images stored in
DRAM 98. Interface 106 further includes four manually operated arrow
buttons 110 which may be used interactively with a control display
114 which appears in a comer of the LCD 108 when the card 7 is in
operation. Finally, interface 106 includes an execute button 112
for executing a selected function in the display 114.
In the example of the control display 114 illustrated in FIG. 3,
the system operator has inserted the card 7 into the camera 3 and
has further selected the "live picture" function at the
top of the display 114 by manipulating bottom-most arrow buttons
110. In such a mode, the LCD 108 acts as a view finder for the system
operator, displaying the still frame that will be stored within
the DRAM 98 upon the actuation of the electronic shutter 29 of the
camera 3. If the system operator wishes to use the card 7 to capture
a selected image, he depresses the bottom-most arrow button 110
to light up the "capture" title in the display, and then
depresses execute button 112. The number of image frames remaining
in the DRAM 98 is displayed in the "frame number" box
of the display 114. If the operator wishes to display the frames
already stored within the DRAM 98, then he again pushes the bottom-most
arrow button 110 to light up the "scroll" box of the display
114, whereupon captured images in the DRAM 98 may be serially scrolled
through by manipulating the sideways arrow buttons 110. Of course,
a different control display 114 would be exhibited when the card
7 was inserted into the receiving slot 83 of the printer 5. It should
be noted that the previously described control scheme on the card
7 has the ergonomic advantage of teaching a first-time user how
to operate the printer 5 as the user first learns how to operate
the camera 3, since the display, scrolling, and erase functions
for both the camera and printer are executed in the same way.
Although the imaging system of the invention has been described
with respect to a specific example, variations, additions, and modifications
of this system will become evident to those of skill in the art.
For example, while the imaging system has been described in terms
of a camera and a printer, the system may be used with any other
kind of imaging rendering device, such as an electronic photo-album,
a PC video screen, a scanner, a transfer station, or an archive
station. The camera may be still or video. While the intelligence
circuit of the invention has been described in terms of a PC card,
this circuit can assume the form of any portable module that is
detachably connectable to both a digital camera or printer. Additionally,
the intelligence circuit may perform all, most, or some of the intelligence
functions of either the camera or the printer. As has been previously
pointed out, the presence of an EPROM having a basic operational
program in both the camera and the printer allows the card or other
modular intelligence to be used in a number of different types of
digital cameras and printers having different functions, i.e., zoom
lens capacities, special print-editing functions, etc. All such
variations, modifications, and additions are intended to be encompassed
within the scope of this invention, which is limited only by the
claims appended hereto.
PARTS LIST 1. System of the invention 3. Digital camera 5. Printer
7. Shared PC intelligence card 11. Lens unit 12. Tubular housing
15. Lens focusing assembly 17. Motor 19. Battery 21. Gear train
23. Flash unit 24. Connector wire 25. Photometer 27. Iris diaphragm
29. Electronic shutter 31. Infrared filter 33. Imaging unit 36.
EPROM 38. Card-receiving slot 40. Terminal 41. Output contacts 44.
Thermal printing unit 46. Control and power circuitry 48. Ribbon
advancing assembly 50. Printhead mechanism 52. Thermal printing
paper 54. Platen roller 56. Drive roller 57. Shaft 58. Electric
motor 60. Thermal print ribbon 62. Spool roller 64. C-Y-M portion
66. Thermal matrix printhead 68. Heating elements 70. Paper moving
mechanism 75. Printhead driver and ribbon advance 76. Control cable
77. Printhead controller 78. Control cable 79. Power supply 81.
EPROM 83. Card-receiving slot 85. Terminal 90. Intelligence circuit
92. Microprocessor 94. Battery pack 96. EPROM 98. DRAM 100. Display
driver 102. Mechanical driver 104. Image Display 106. User interface
107. Address data and input/output bus 108. LCD screen 109. LED
indicator 110. Function controls 112. Execute button 114. Control
display
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