Patent Publication (A)
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`Patent Application Publication No.: H06-133081
`Publication Date: May 13, 1994
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`Application No.: H04-302935
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`Application Filing Date: October 15, 1992
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`Applicant: KYOCERA CORP
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`Inventor(s): Kuugo MORITA
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` Title: ELECTRONIC STILL CAMERA WITH PORTABLE TELEPHONE FUNCTION
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`[Abstract]
`[Purpose] To improve instantaneity by loading a portable telephone function to an electronic still camera and
`constituting the camera to be capable of immediately transmitting a taken picture to a large storage medium
`at another place through the use of a telephone line. Also, to miniaturize the whole camera by making a
`display for confirming the taken picture attachable and detachable.
`[Constitution] When pressing a release button 12 halfway, power source is supplied to a camera part and a
`control circuit 25 controls for photographing. A subject is displayed on a display 8 through a lens 1, an image
`pickup element 2, an image processing circuit 4 and a driver 7. When a composition is decided and the
`release button 12 is pressed, picture data is recorded in an internal memory 26 and at the same time, a
`picture line ensuring means 24 instructs a control circuit 28 of a portable telephone set to call a previously-
`inputted telephone number to connect the line. When the line is connected, picture data in the internal
`memory 26 is read out. The control circuit 28 sends the picture data to the line through a modulation circuit
`29 and a transmitting circuit 21.
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`[Claims]
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`[Claim 1]
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`An electronic still camera with portable telephone function comprising a digital electronic
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`still camera equipped with a portable telephone function part,
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`the digital electronic still camera including an image input means having a lens,
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`an image pickup element, etc., an image processing means, and an image storing means, and
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`the portable telephone function part sending and receiving a signal of
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`telephonic conversation of the phone by wireless,
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`wherein the image storing means has an internal memory, an output of which is
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`connected to an input of a modulation circuit of the portable telephone function part,
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`wherein the digital still camera includes a control means which turns on a power of a
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`camera part when a release button is pressed, inputs an image from the image input means,
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`stores the image in the internal memory of the image storing means, and then turn off the power
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`of the camera part,
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`wherein the digital still camera further includes a picture line ensuring means which
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`operates a control means of the portable telephone function part so that a call is initiated at the
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`same time as the release button is pressed and a previously-inputted recipient’s telephone
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`number is sent out and called, and which causes an image data stored in the internal memory to
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`be read out when the line is connected,
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`wherein the portable telephone function part includes a control part which sends out the
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`image data from the internal memory when the line is connected by the control of the picture
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`line ensuring means and disconnects the line when the image data sending is complete, and
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`which connects the line again after a fixed period of time when the line is not connected.
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`[Claim 2]
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`The electronic still camera with portable telephone function of claim 1, wherein a
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`memory card type display is prepared, the memory card type display comprising:
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`a driver part;
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`a display part;
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`a terminal which is attachable to a memory card attaching part of the image storing
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`means; and
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`a structure which takes in outdoor light from a back side of the display part, and
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`wherein the display is connected to the memory card attaching part, and used as a
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`viewfinder and a playback screen.
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`[Description]
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`[0001]
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`[Technical Field]
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`The present invention relates to an electronic still camera which is equipped with a
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`portable telephone set which sends and receives a signal of telephonic conversation by wireless.
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`[0002]
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`[Background Art]
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`In recent years, electronic still cameras have been attempted to be digitalized due to
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`stability of circuits, etc. Similarly, memory cards are used as external storage media due to no
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`deterioration of image. Fig. 10 is a circuit diagram which shows one example of a conventional
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`digital electronic still camera. Light, not shown in the figure, from a subject forms an image on
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`an image pickup element 2 by a lens 1. An output of the image pickup element 2 is converted
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`into a digital signal by an A/D converter 3, and a predetermined process is performed to the
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`output by an image processing circuit 4. Image data of the image processing circuit 4 is
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`compressed and encrypted. The encrypted image data is processed to be expanded by a
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`decryption circuit 6, and displayed on a display 8 by a driver 7. When a release button 12 is
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`pressed, the information of the pressing is transmitted to a control circuit 11, and the encrypted
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`image data is stored in a memory card 10. An internal memory 9 is used, for example, when a
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`storage capacity of the memory card 10 is not enough, to temporarily store the photographed
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`image and store the photographed image in a replaced memory card which has an empty
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`storage capacity.
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`[0003]
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`[Technical Problem]
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`There is a problem that, although memory cards are used as external storage media like
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`the above, the number of images which can be stored in a memory card is small and memory
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`cards are still expensive. Also, more and more liquid crystal displays are used as a viewfinder
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`of cameras, video cameras, etc. for observation of shooting subjects and verification of shooting
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`images in recent years due to view ability, etc. However, there is a drawback that the shape of
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`the entire camera becomes larger by using a liquid crystal display.
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`[0004]
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`Therefore, as a means for solve the above mentioned drawback, the inventors of the
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`present invention thought about installing portable telephone function in order to be able to
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`photograph without loading a memory card. Fig. 11 is a circuit diagram showing one example of
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`a conventional portable telephone set. When a call operation is performed by inputting a
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`recipient’s phone number with a dial operating part 14, a control circuit 17 sends out the
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`inputted phone number to a transmitting circuit 21 through a modulation circuit 18. At the
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`transmitting circuit 21, the inputted phone number is superposed on a carrier wave of a carrier
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`wave synthesizer 20, and transmitted through a duplexer 22 and an antenna 23. When there is
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`a response that it is connected to the recipient, telephonic conversation becomes possible.
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`Voice input from microphone 15 undergoes a predetermined modulation processing performed
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`by the modulation circuit 18, and is sent to the other end of the line through transmission circuit
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`21, whereas the radio wave transmitted from the recipient is received by the receiving circuit 19
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`via the antenna 23 and duplexer 22. The carrier component is removed by the receiving circuit
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`19 and is demodulated by the demodulation circuit 16. The demodulated audio signal is then
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`reproduced from the speaker 13.
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`[005]
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`The present invention has been made based on the above considerations, which
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`purpose is to equip a cellular phone function onto an electronic still camera. By configuring the
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`device to instantly transmit captured images to large storage mediums placed at different
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`locations via telephone line, responsiveness is improved, where the lack of memory on the
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`device can be resolved in following through with the provision of this invention as a portable
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`phone equipped with an electronic still camera. In accordance to the electronic still camera,
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`another object of the present invention is to aim at providing a miniaturized version of the
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`electronic still camera with a portable phone capacity, by making the display screen used for
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`confirming captured images and observing photographic subjects detachable.
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`[006]
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`[Solution to the Problem]
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`In order to achieve the aforementioned purposes, the present invention involving the
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`electronic still camera with a portable phone function, a portable phone function unit for
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`wireless transmitting and receiving telephone call signals will be equipped to a digital electronic
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`still camera having a lens, image input means consisting of an imaging device or the like, an
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`image processing means, image encoding means as well as an image storing means. The
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`output of the internal memory of the aforementioned image storage means is connected to the
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`input of the modulation circuit of the portable phone function, and when the release button is
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`pressed on the aforementioned electronic still camera, the image input means is loaded through
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`the power supply of the camera unit, and after the image is stored into the internal memory of
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`the image storage means, the control means for powering off the camera unit is put on standby,
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`where at the instance the aforementioned release button is pressed, the operating control unit of
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`the portable phone function is set in advanced to signal the recipient’s telephone number.
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`When the line is connected, the image line securing means for controlling the image data stored
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`in the internal memory is read out, where the portable phone function unit is connected to the
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`line in control by the image circuit securing means, and the image data from the internal
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`memory is transmitted through the connected line, where the line is cut off after the transmission
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`has finished, and if the line fails to connect in the first place, an attempt to reconnect will be
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`made through configurations made on the control unit. Furthermore, in order to successfully
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`achieve the other objects, this invention is equipped with a driver unit and a display unit having
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`an attachable terminal to the memory card attachment portion of the said storage means, and is
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`configured with a memory card type display having a structure incorporating external light from
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`the rear surface of the display that is configured to be used as a viewfinder as well as a
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`playback screen once the memory card is connected.
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`[007]
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`[Operation]
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`According to the above configuration, at the instant when the release button is pressed,
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`the power supply loads with the image of the subject stored in the internal memory, where the
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`securing of the line for the image transmission is executed and once secured, the transmission
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`of the image is executed, where the line is cut off after the transmission has completed.
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`Accordingly, this enables photographers to take pictures without carrying external storage
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`mediums such as expensive memory cards with large capacities, providing a solution to the
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`above problem. Furthermore, the miniaturization of the electronic camera is realized, even with
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`the additional size due to the equipment of portable phone function through utilizing a
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`detachable display.
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`[008]
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`[Working Example]
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`The present invention is explained in further details in reference to the figures below.
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`Figure 1 is a circuit diagram showing an embodiment of the portable phone function with the
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`electronic still camera according to the present invention. In the figure, part A enclosed by the
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`dotted line corresponds to the circuit portion of the digital electronic still camera of described in
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`FIG 10, where part B is a functional unit corresponding to the circuitry of the portable phone
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`device in part FIG 11. Each elements denoted by the same symbols perform the same functions.
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`The controlling circuit 25 of the digital electronic still camera controls the photographing
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`operation associated between pressing the release button 12 half way, and pressing the button
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`all the way after powering up the camera unit. The picture line ensuring means 24 will instruct
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`control circuit 28 of the portable telephone set to call, and dial a previously-inputted telephone
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`number to secure a line after receiving information from the release button 12. Then, upon
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`obtaining line connection information from the demodulator circuit 27, the internal memory of the
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`digital electronic still camera 26 is instructed to read out the image data. The output terminal of
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`the image reading data in the internal memory 26 is connected to an input terminal of the
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`modulation circuit 29 of the portable telephone function unit.
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`[009]
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`Figure 2 is a figure used to describe an example of the external appearance of the
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`electronic still camera with the portable telephone function in accordance to the present
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`invention. (a) is the diagrammatic perspective view of the said camera, (b) depicts the camera
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`being used in several ways by the user. The surface speaker 13 and the microphone 15 are
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`position on the upper portion of the surface and the lower portion of the surface of the main
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`body 25 respectively, where the antenna 23 and lens 1 are also arranged on the top portion of
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`the surface. The display 8 is positioned around the mid-section of the said surface, where in
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`respect to its position, the release button 12 is placed at a lower position and the dial 14 is
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`positioned even more so on the bottom of the said surface. When taking a picture, the device is
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`held with the left hand as shown in (a) and the lens is pointed to the object (not shown). When
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`pressing the release button 12 half-way with the right hand, the camera unit powered on and the
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`image of the object is displayed onto display 8. The composition of the photo is determined
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`through looking at display 8, as the transmission of the image is done through pressing the
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`release button 12 all the way. When making a call, the call button on the dial control unit 14 is
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`pressed, wherein the recipient’s phone number is inputted through pressing the respective
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`buttons as shown in state (a). The phone call is then made possible through the use of speakers
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`13 and microphone 15.
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`[0010]
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`Figure 3 is a flowchart describing the operation sequence of the portable telephone
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`function with the electronic still camera concerning the present invention. Once the camera unit
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`is powered on by pressing the release button 12 halfway (denoted as step (ST), 1, 2), the
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`control circuit 25 will, in accordance to lens 1, convert the object of the image formed in image
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`sensor 2 into digital signals by the A/D converter 3, where after the image has gone through the
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`likes of AGC processing and y-correction through image processing circuit 4, the image is
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`displayed on display 8 through driver 7 (ST 3, 4). After determining the composition of the image
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`and pressing the release button 12 all the way (ST 5), the image is encoded through the
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`encoding circuit 5 and stored in the internal memory 26 (ST6), where the camera unit will power
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`off, whilst leaving on the minimum required circuits such as the internal memory 26 (ST 7).
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`Control circuit 25 will determine whether it is set to perform the above actions simultaneously in
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`batch transfer mode or not (ST 8). If it isn’t set to batch transfer mode, picture line ensuring
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`means 24 will signal the control circuit of the portable phone function unit 28 to make a call (ST
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`9). The batch transfer mode here, is a mode where the photographer may at once transmit a
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`prescribed number of photos all at once after storing it in the internal memory, and is a mode
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`that can be set in advance by the photographer through toggling the setting switch (not shown).
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`[0011]
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`On the other hand, when setting the batch transfer mode, the memory card 10 (if
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`attached), as well as the internal memory 26 will check if there is sufficient space available (ST
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`14), and will determine whether or not if there is enough space for ‘n’ number of pictures (n may
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`be configured through the setting switch not shown). If there is not enough space to send out ‘n’
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`number of pictures, the transmission will not be carried through and will be terminated. If there is
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`enough space available for ‘n’ number of pictures, it will revert back to operations in ST9.
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`Control circuit 28 will read out the transmission destination telephone number dialed by the
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`buttons in the dial control unit 14 from its own internal memory in advance, and will begin the
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`transmission through modulation circuit 29, and transmission circuit 21 (ST 10), and will monitor
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`whether to connect or disconnect the transmission line (ST 11). When the signal indicating the
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`recipient’s response is transmitted back through the circuit, the signal will be received through
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`the receiving circuit 19, and demodulated by the demodulation circuit 27, where the line
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`connection information will be inputted through the control circuit 28 as well as the picture line
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`securing means 24. From receiving the connecting line information, the picture line ensuring
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`means 24 will read out the image data from the internal memory 26. The read out image data
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`will then be modulated by the modulation circuit 29, where the carrier wave will be
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`superimposed by the transmission circuit 21 and be transmitted from the antenna 23 (ST 12).
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`After the completion of the transmission, the control circuit 28 will cut off the line, and will power
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`down while leaving the minimum amount of circuits necessary to await incoming calls (ST 13).
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`[0012]
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`When the signal indicating response back from the other party is not sent back from the
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`line, or if the line is not properly secured, it will determine whether the recipient is simply busy or
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`not (including the case when there is no response back). A lamp on the device will signal if so
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`(ST17). If it is determined that the recipient is not busy, a lamp will signal, indicating that the
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`device is in a position unreceptive to send and receive radio waves (ST 18). Because the line
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`will not be connected in either of the two scenarios as mentioned above, the control circuit 28
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`will determine if the memory card 10 is inserted or not through the control circuit 25 (ST 19). In
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`result, the device will signal through a display and or an audio notification, in the case where
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`memory card 10 is not inserted (ST 20). Accordingly, if the photographer inserts a memory card
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`10 in compliance to the notification, or if the memory card 10 has been inserted from the
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`beginning, the image data stored in the internal memory 26 will be transferred over to memory
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`card 10 (ST 22). Then, the device will then check whether or not if it is set to retry mode (ST
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`23). If the device is not configured to retry mode, operations for transmission will terminate at
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`that point. If retry mode is set, the control circuit 28 will start a timer built in the host circuit, and
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`power off the remaining circuit portions of the device (ST24).
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`[0013]
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`Then, when the timer goes off after elapsing a predetermined time, the telephone
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`number of the transmission destination is read out from the internal memory and a call is made
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`once again from the power being turned on in the other circuit portions. Then, the read out
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`telephone number is transmitted through the line via the modulation circuit 29 and transmission
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`circuit 21. After determining whether the line has been secured or not (ST 26), the image data
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`from the memory card 10 is transferred into the internal memory 26, where the image data is
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`transmitted through the line via the modulation circuit 29m and transmission circuit 21, ending
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`the transmission upon completion. (ST 13) Regardless of the outgoing call, if the line does not
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`connect, the process is reverted back to ST24, repeating the operation where the internal timer
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`activates and waits to forward the call again.
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`[0014]
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`Furthermore, the flowchart in Figure 3 assumes that there is a power switch provided
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`separately from the release button 12, whereby the portable telephone function is put on
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`standby once the power switch is turned on. Similar to the batch transfer mode, the retry mode
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`can be selected by operating the setting switch (not shown). If the outgoing call does not
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`connect at its first attempt, it will attempt to forward the call again in 3 minutes, and if the call still
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`does not connect, another attempt will be made after 5 minutes and so on, where the time
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`placed between each call will be extended with each attempt made. Although the above
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`operation describes the image data transmission sequence via a line, it is of course, possible to
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`store the image of the photograph initially taken inside the memory card as well.
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`[0015]
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`In addition to transmitting image data, it is also possible to receive image data from
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`elsewhere by the decoder provided. Furthermore, it is possible to view previously transmitted
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`images by configuration of the control access so that the recipient’s storage media can be
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`controlled by the transmission circuit, where the image data can be transmitted from the said
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`storage media. By enabling the use of two lines through configuration, pictures can be taken
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`and transferred while on call. Furthermore, by the digitalization of the lines, the transmission of
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`voice information and image information may be done through one line as a packet transmission.
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`In regards to taking pictures, there are situations where as similar to handling text information,
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`binary color data is used, in which gradations of black and white are sufficient enough in
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`processing the image. It is possible to configure each of the circuits involving photography,
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`image processing and encoding to respond to such cases. As to other features, vocal count
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`downs when using the self-timer feature, and by receiving data from the position information
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`acquisition means such as a GPS, the setting of photography and information pertaining to its
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`environment may also be transmitted additionally through the provision of the circuitry unit.
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`[0016]
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`Figure 4 is a figure pertaining to this invention, explaining the other external features of
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`the electronic still camera with the portable phone functionality. (a) Is the diagrammatic
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`perspective view, where the appearance of the camera body in Figure 2 illustrates a different
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`location for the lens, finder and release button. Lens 30 is popped-up and provided on the left
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`lateral, Finder 32 is provided to be on the right side, where it is also popped-up. When the
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`electronic still camera is not in use, the lens 30 as well as the finder 32 is housed within the
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`main body. Release button 31 is positioned at the lower section of the finder 32 located on the
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`right lateral of the main body. (b) Is a detailed drawing of the finder 32, where the light taken in
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`and used for the liquid crystal display 32b from the external entrance portion 32a is omitted. (c)
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`and (d) is intended to indicate how to hold the device when using the electronic still camera,
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`where the main body is held with the left hand and the thumb is used to push the release button
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`31, enabling operation with just one hand. This contour allows the grasping of the protruding
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`part of microphone 15 with the bottom part of the hand, whilst tightening the underarm and
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`stabilizing its position.
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`[0017]
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`Figure 5 is a diagram pertaining to the invention, indicating another embedment of the
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`electronic still camera with the portable phone feature. (a) is a diagrammatic perspective view
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`and (b) indicates the usage stage of the device. This embedment, in which the electronic still
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`camera has been miniaturized in spite of the increase in size with the portable phone feature
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`equipped to it, where the memory card display 34 may be attached to the memory card insertion
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`portion 10a (FIG. 1) instead of a memory card. (a) shows the memory card format display 34
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`attached to the provided memory card insertion portion 10a provided on the upper front face of
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`the main body, where the mirror plate 41 is shown as the intake portion of the outside light. The
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`speaker 50 is positioned on the upper portion of the front surface of the main body, and the
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`release button 45 is positioned at its bottom position, where the dial operation unit 44 is
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`positioned further below the release button 45. Microphone 46 is pivotally attached to the
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`bottom end of the front surface, when in use, it unfolds as shown in (a0, and is folded and
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`housed inside the body above the dial operation unit 44 and release button 45. In this
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`embodiment, because the image data stored inside the internal memory cannot be transmitted if
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`the line is not connected, the memory card format display 34 is to be removed and replaced with
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`the memory card at this instance.
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`[0018]
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`Figure 6 is an embodiment of the circuit configuration of Figure 5, and in contrast to
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`Figure 1, is a circuit diagram extracting only the circuit components of the configuration. Display
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`8 and driver 7 are omitted from this circuit according to the diagram on Figure 1, where the
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`selection circuit 43 is inserted between encoding circuit 5 and memory card insertion unit 10a,
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`where the output from the image processing circuit 4 and or encoding circuit 5 is selected based
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`on the information from the card type identification pin, which will be later described. When the
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`memory card is inserted, the output of the encoding circuit 5 will be connected, where the output
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`of the image processing circuit 4 will be connected if the memory card format display 34 is
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`attached. Figure 7 is a perspective view explaining the configuration of the memory card
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`insertion portion on Figure 5. Here, the memory card insertion portion is shown to be the
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`connector 49 with a popped-up shape, where it is housed inside the main body when not in use,
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`and will pop-up above the upper surface in the form of a connector when in use. The memory
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`card format display 34 can be inserted at an angle as shown on Figure 5 (a). Figure 8 (a)
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`indicates the circuit configuration of the memory card format display 34 in Figure 5. The terminal
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`of the memory card connector 40 is connected to the controller 39, where controller 39 drives
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`and controls X driver 37 and Y driver 38. From the mirror plate 41, external light will enter
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`through diffusing panel 35 and into the back of LCD 36. Figure 8 (b) is the diagrammatic
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`perspective view of the memory card format display.
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`[0019]
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`Figure 9 explains the configuration of the memory card format display 34of Figure 9. (a)
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`is the mirror plate 41 at its opened state, and (b) indicates the configuration of the liquid crystal
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`portion. Protective panel 51 is placed above LCD 36 and below the diffusing panel 35. At the
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`edge of the connection terminal portion is a card identification pin 42 provided as shown in (c).
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`This card identification pin 42 can identify if the memory card format display 34 is attached, and
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`can switch its configuration via selection circuit 43. In this way, the miniaturization of the device,
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`the reduction of power consumption, as well as ease in replacing damaged memory card format
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`displays can be achieved, by making the display removable.
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`[0020]
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`[Advantageous Effects of the Invention]
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`As explained above, according to the present invention, by securing photography and
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`lines for call transmissions simultaneously, the need for an external storage medium as a
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`memory card is eliminated because the device is configured to transmit the photographed
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`image data. Therefore, it removes the necessity in carrying around expensive memory cards
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`with limited space. Because the photographed image data will be transmitted elsewhere, and
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`based on such configurations, in a sense, users will be able to experience taking pictures with a
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`remote control rather than a traditional camera. Furthermore, power on the camera unit is only
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`turned on at the time of photography, and is turned off after completion, where power is
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`automatically turned off regardless of whether a line is secured or not, enabling extended
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`periods of use by preventing the use of unnecessary power. Additionally, when configuring the
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`device so that the memory card may be replaced by the memory card format display, the
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`memory card display may be removed when the camera is unused, and the miniaturization of
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`the main body is achieved, where the display itself may be easily replaced when damaged.
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`Light configured to enter from the back of the display, also gives it a power-saving effect.
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`[Brief Description of Drawings]
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`[FIG 1]
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`Circuit diagram for indicating the embodiment of the electronic still camera with the portable
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`phone functionality pertaining to this invention
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`[FIG 2]
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`Diagram showing one exterior view of the electronic still camera with the portable phone
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`functionality, shown on Figure 1
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`[FIG 3]
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`Flowchart explaining the operation sequence of the electronic still camera with the portable
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`phone functionality pertaining to this invention
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`[FIG 4]
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`Diagram showing another external view of the electronic still camera with the portable phone
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`functionality, as shown on Figure 1
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`[FIG 5]
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`Diagram showing another embodiment of the electronic still camera with the portable phone
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`function where, (a) is a perspective view showing the appearance of the memory card format
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`display, attachable at the memory card attachment section, and (b) is the perspective view of it
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`in use
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`[FIG 6]
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`Embodiment of the circuit configuration diagram of Figure 5
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`[FIG 7]
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`Perspective view explaining the attachment of the memory card format display of Figure 5
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`[FIG 8]
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`(a) Is the circuit configuration diagram of the memory card format display of Figure 5, where (b)
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`is the perspective view showing its appearance
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`[FIG 9]
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`Perspective view explaining the configuration of the connector portion of the memory card
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`format display of Figure 5
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`[FIG 10]
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`Basic configurations of the traditional electronic still camera
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`[FIG 11]
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`Basic configurations of the traditional portable telephone
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`[Reference Signs