JP4321571B2 - Information processing device - Google Patents

Description

  The present invention relates to an information processing apparatus, a control method for the information processing apparatus, and a recording medium, and more particularly, to an information processing apparatus and an information processing apparatus that are connected to each other via a communication line and can communicate information. The present invention relates to a control method and a recording medium.

  Advances in image compression technology are making it possible to transmit images using a transmission medium that does not have a large transmission capacity, such as a telephone line.

  For example, in a video phone, the image captured by a CCD is compressed according to a standard such as MPEG (Moving Picture Experts Group), and then sent to a communication partner via a telephone line. The original image is displayed on an LCD or the like after processing.

  By the way, when it is going to implement | achieve the above videophone systems by a portable information processing apparatus, since the display apparatus with which these apparatuses are equipped is small, when displaying several images simultaneously, As a result, there is a problem that the resolution of the image is lowered, and as a result, the image becomes difficult to see.

  Thus, it is conceivable to select and display these plural images as appropriate, but there has been a problem that an appropriate selection method has not been proposed in the past.

  The present invention has been made in view of the above situation, and has a small display device. For example, when a videophone system is constructed by a portable information processing device, a plurality of images are appropriately selected. It is possible to enable display on a display device.

The information processing device according to claim 1 transmits an image to be displayed on the display device and a display device of another information processing device to the other information processing device, and displays an image transmitted from the other information processing device. First switching means for switching between a first mode displayed on the apparatus and a second mode displaying the same image on the display apparatus and the display apparatus of another information processing apparatus, and the same image in the second mode Is switched to an image transmitted to another information processing apparatus or an image transmitted from another information processing apparatus, and the second switching means is at least other in the second mode. When an image to be displayed on the display device of the information processing apparatus is changed, a control signal instructing to change the image displayed on the other information processing apparatus is transmitted .

  According to one aspect of the present invention, when a user on either the caller side or the callee side wants to transmit a non-user's own image to a communication partner, the image is transmitted while being confirmed by the display device. It becomes possible.

    Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 and 2 are perspective views showing the configuration of an embodiment of an electronic camera to which the present invention is applied. In the electronic camera of the present embodiment, when the subject is normally photographed (when the LCD 6 is directed toward the user), the surface directed toward the subject is the surface X1, and the surface directed toward the user is the surface X2. Has been. Above the surface X1, a finder 2, a photographing lens 3, a light emitting unit 4, a red-eye reduction lamp 15, a photometric element 16, and a rotating unit 19 provided with a color measuring element 17 are arranged. The rotating unit 19 is rotatable, and can rotate the surface on which the photographing lens 3 is provided from the surface X1 direction to the surface X2 direction and fix it at an arbitrary position. The finder 2 is used for confirming the photographing range of the subject, the photographing lens 3 captures a light image of the subject, and the light emitting unit (strobe) 4 emits light for illuminating the subject.

  Further, the red-eye reduction lamp 15 is configured to reduce the red-eye by emitting light before the strobe 4 emits light when shooting with the strobe 4 being emitted. The photometric element 16 performs photometry when the operation of the CCD 20 (FIG. 4: image input means) is stopped. Further, the colorimetric element 17 similarly performs colorimetry when the operation of the CCD 20 is stopped.

  On the other hand, on the back surface (the surface opposite to the surface on which the photographing lens 3 is provided) of the rotation unit 19, the eyepiece of the finder 2 and a speaker that outputs sound recorded in the electronic camera 1. 5 is provided. In addition, the LCD 6 and the operation keys 7 formed on the surface X2 are formed vertically below the viewfinder 2, the photographing lens 3, the light emitting unit 4, and the speaker 5. On the surface of the LCD 6, a so-called touch tablet 6 </ b> A (image input unit, selection unit) that outputs position data corresponding to an instructed position by a contact operation of a pen-type pointing device described later is disposed.

  The touch tablet 6A is made of a transparent material such as glass or resin, and the user observes an image displayed on the LCD 6 formed inside the touch tablet 6A via the touch tablet 6A. Can do.

  The operation key 7 is a key that is operated when recording data is reproduced and displayed on the LCD 6. The operation key 7 detects an operation (input) by a user and supplies it to the CPU 39 (FIG. 6: switching means, control means). ing.

  The menu key 7 </ b> A among the operation keys 7 is a key that is operated when a menu screen is displayed on the LCD 6. The execution key 7B is a key operated when reproducing the recording information selected by the user.

  The clear key 7C is a key operated when deleting recorded information. The cancel key 7D is a key operated when the recording information reproduction process is interrupted. The scroll key 7E is a key operated when the screen is scrolled up and down when a list of recorded information is displayed on the LCD 6.

  The surface X2 is provided with a slidable LCD cover 14 that protects the LCD 6 when not in use. As shown in FIG. 3, the LCD cover 14 covers the LCD 6 and the touch tablet 6A when moved in the vertical upward direction. When the LCD cover 14 is moved vertically downward, the LCD 6 and the touch tablet 6A appear, and a power switch 11 (described later) disposed on the surface Y2 is turned on by the arm portion 14A of the LCD cover 14. It is made like that.

  On the upper surface of the electronic camera 1, a microphone 8 that collects sound and an earphone jack 9 to which an earphone (not shown) is connected are provided.

  On the left side (surface Y1), a release switch 10 that is operated when capturing an image of a subject, a continuous shooting mode switching switch 13 that is operated when switching a continuous shooting mode at the time of shooting, and a telephone line A modular jack 18 is provided. The release switch 10, the continuous shooting mode switching switch 13, and the modular jack 18 are arranged vertically below the viewfinder 2, the photographing lens 3, and the light emitting unit 4 provided in the rotating unit 19.

  On the other hand, on the surface Y2 (right side surface) facing the surface Y1, a recording switch 12 and a power switch 11 that are operated when recording sound are provided. The recording switch 12 and the power switch 11 are vertically below the viewfinder 2, the photographing lens 3, and the light emitting unit 4 provided in the rotating unit 19, similarly to the release switch 10 and the continuous shooting mode switching switch 13. Has been placed. Further, the recording switch 12 is formed to have almost the same height as the release switch 10 on the surface Y1, and is configured so as not to feel uncomfortable even if it is held with either the left or right hand.

  It should be noted that when the recording switch 12 and the release switch 10 are different in height, when one of the switches is pressed, if the opposite side is held with a finger to cancel the moment due to the pressing force, this is mistakenly detected. You may prevent the switch provided on the opposite side surface from being pushed.

  The continuous shooting mode switch 13 is used when the user presses the release switch 10 to shoot a subject and sets whether to shoot only one frame of the subject or a predetermined plurality of frames. For example, when the pointer of the continuous shooting mode switch 13 is switched to the position where “S” is printed (that is, switched to the S mode), when the release switch 10 is pressed, only one frame is shot. Has been made to be done.

  Further, when the pointer of the continuous shooting mode switch 13 is switched to the position where “L” is printed (that is, the mode is switched to the L mode), if the release switch 10 is pressed, the release switch 10 During the pressed period, 8 frames are taken per second (that is, the low-speed continuous shooting mode is set).

  Further, when the pointer of the continuous shooting mode switch 13 is switched to the position where “H” is printed (that is, switched to the H mode), if the release switch 10 is pressed, the release switch 10 During the pressed period, 30 frames are taken per second (that is, the high-speed continuous shooting mode is set).

  Next, the internal configuration of the electronic camera 1 will be described. FIG. 4 is a perspective view illustrating an internal configuration example of the electronic camera illustrated in FIGS. 1 and 2. The CCD 20 is provided at the rear stage of the photographing lens 3 and photoelectrically converts a light image of a subject imaged through the photographing lens 3 into an electric signal.

  The in-finder display element 26 is arranged in the field of view of the finder 2 and displays various function setting states and the like to the user who is viewing the subject through the finder 2. The finder 2, the photographing lens 3, the light emitting unit 4, the speaker 5, the CCD 20, and the in-finder light emitting element 26 are disposed in the cylindrical rotating unit 19.

  Four cylindrical batteries (AA batteries) 21 are vertically arranged on the lower side of the LCD 6, and the electric power stored in the battery 21 is supplied to each part. Further, a capacitor 22 that accumulates electric charges for causing the light emitting unit 4 to emit light is disposed along with the battery 21 on the vertically lower side of the LCD 6.

  On the circuit board 23, various control circuits for controlling each part of the electronic camera 1 are formed. A memory card 24 (recording means) that can be inserted and removed is provided between the circuit board 23, the LCD 6, and the battery 21, and various information input to the electronic camera 1 is stored in advance in the memory card 24. Each is recorded in the set area.

  Further, the LCD switch 25 arranged adjacent to the power switch 11 is a switch that is turned on only while the projection is pressed. When the LCD cover 14 is moved vertically downward, As shown in FIG. 5 (a), the arm portion 14 </ b> A of the LCD cover 14 can be switched on together with the power switch 11.

  When the LCD cover 14 is positioned vertically upward, the power switch 11 is operated by the user independently of the LCD switch 25. For example, when the LCD cover 14 is closed and the electronic camera 1 is not used, the power switch 11 and the LCD switch 25 are turned off as shown in FIG. In this state, when the user switches the power switch 11 to the on state as shown in FIG. 5C, the power switch 11 is turned on, but the LCD switch 25 remains off. On the other hand, as shown in FIG. 5B, when the LCD cover 14 is opened when the power switch 11 and the LCD switch 25 are in the OFF state, as shown in FIG. The LCD switch 25 is turned on. Thereafter, when the LCD cover 14 is closed, only the LCD switch 25 is turned off as shown in FIG.

  Further, as shown in FIG. 5, the rotation unit 19 can be set to an arbitrary angle between the normal direction of the surface X1 and the normal direction of the surface X2.

  In this embodiment, the memory card 24 can be inserted and removed, but a memory may be provided on the circuit board 23 so that various types of information can be recorded in the memory. Various information recorded in the memory (memory card 24) may be output to an external personal computer via an interface (not shown).

  Next, the internal electrical configuration of the electronic camera 1 of the present embodiment will be described with reference to the block diagram of FIG. The CCD 20 provided with a plurality of pixels photoelectrically converts a light image formed on each pixel into an image signal (electric signal). A digital signal processor (hereinafter referred to as DSP) 33 (recording means) supplies a CCD horizontal drive pulse to the CCD 20 and controls a CCD drive circuit 34 to supply the CCD 20 with a CCD vertical drive pulse.

  The image processing unit 31 is controlled by the CPU 39 to sample the image signal photoelectrically converted by the CCD 20 at a predetermined timing and amplify the sampled signal to a predetermined level. An analog / digital conversion circuit (hereinafter referred to as A / D conversion circuit) 32 digitizes the image signal sampled by the image processing unit 31 and supplies the digitized signal to the DSP 33.

  The DSP 33 controls the data bus connected to the buffer memory 36 and the memory card 24, temporarily stores the image data supplied from the A / D conversion circuit 32 in the buffer memory 36, and then stores the image data stored in the buffer memory 36. Data is read out and the image data is recorded on the memory card 24.

  The DSP 33 stores the image data supplied from the A / D conversion circuit 32 in the frame memory 35 (output means), displays the image data on the LCD 6, reads out the captured image data from the memory card 24, and stores the captured image data. After decompression, the decompressed image data is stored in the frame memory 35 and displayed on the LCD 6.

  Further, the DSP 33 repeatedly operates the CCD 20 while adjusting the exposure time (exposure value) until the exposure level of the CCD 20 reaches an appropriate value when the electronic camera 1 is activated. At this time, first, the DSP 33 may operate the photometry circuit 51 to calculate the initial value of the exposure time of the CCD 20 corresponding to the light reception level detected by the photometry element 16. In this way, the exposure time of the CCD 20 can be adjusted in a short time.

  In addition, the DSP 33 performs data input / output timing management in recording to the memory card 24, storing the decompressed image data in the buffer memory 36, and the like.

  The buffer memory 36 is used to alleviate the difference between the data input / output speed with respect to the memory card 24 and the processing speed of the CPU 39, DSP 33, and the like.

  The microphone 8 inputs voice information (collects voice) and supplies the voice information to the A / D and D / A conversion circuit 42.

  The A / D and D / A conversion circuit 42 converts an analog signal corresponding to the sound detected by the microphone 8 into a digital signal, then outputs the digital signal to the CPU 39 and also outputs the sound data supplied from the CPU 39. An analog audio signal is output to the speaker 5 as an analog signal.

  The photometric element 16 measures the amount of light in the subject and its surroundings and outputs the measurement result to the photometric circuit 51.

  The photometry circuit 51 performs predetermined processing on the analog signal that is the photometry result supplied from the photometry element 16, converts the analog signal into a digital signal, and outputs the digital signal to the CPU 39.

  The color measuring element 17 measures the color temperature of the subject and its surroundings and outputs the measurement result to the color measuring circuit 52.

  The color measurement circuit 52 performs predetermined processing on the analog signal that is the color measurement result supplied from the color measurement element 17, converts the analog signal into a digital signal, and outputs the digital signal to the CPU 39. Yes.

  The timer 45 has a built-in clock circuit, and outputs data corresponding to the current time to the CPU 39.

  The aperture driving circuit 53 is configured to set the aperture diameter of the aperture 54 to a predetermined value.

  The stop 54 is disposed between the photographing lens 3 and the CCD 20 and changes the aperture of light incident on the CCD 20 from the photographing lens 3.

  The rotation part position detection circuit 55 refers to the output from the potentiometer 56 that is linked to the rotation part 19 and detects the direction in which the rotation part 19 is directed at that time.

  The modem unit 57 converts the data format when transmitting / receiving information to / from another electronic camera 1 connected via a public line.

  In response to a signal from the LCD switch 25, the CPU 39 stops the operation of the photometric circuit 51 and the colorimetric circuit 52 when the LCD cover 14 is open, and performs photometry when the LCD cover 14 is closed. The circuit 51 and the colorimetric circuit 52 are operated, and the operation of the CCD 20 (for example, an electronic shutter operation) is stopped until the release switch 10 is pressed halfway.

  When the operation of the CCD 20 is stopped, the CPU 39 controls the photometry circuit 51 and the color measurement circuit 52 to receive the photometry result of the photometry element 16 and the color measurement result of the color measurement element 17. .

  Then, the CPU 39 refers to a predetermined table, calculates a white balance adjustment value corresponding to the color temperature supplied from the color measurement circuit 52, and supplies the white balance adjustment value to the image processing unit 31. ing.

  That is, when the LCD cover 14 is closed, the LCD 6 is not used as an electronic viewfinder, so that the operation of the CCD 20 is stopped. Since the CCD 20 consumes a lot of power, the power of the battery 21 can be saved by stopping the operation of the CCD 20 in this way.

  Further, the CPU 39 performs image processing so that the image processing unit 31 does not perform various processes until the release switch 10 is operated when the LCD cover 14 is closed (until the release switch 10 is pressed halfway). The unit 31 is controlled.

  Further, the CPU 39 operates the aperture drive circuit 53 to change the aperture diameter of the aperture 54 until the release switch 10 is operated when the LCD cover 14 is closed (until the release switch 10 is half pressed). The aperture driving circuit 53 is controlled so as not to perform the operation.

  The CPU 39 controls the strobe drive circuit 37 to appropriately emit the strobe 4 and also controls the red-eye reduction lamp drive circuit 38 to appropriately turn on the red-eye reduction lamp 15 before causing the strobe 4 to emit light. It is made to emit light.

  Note that the CPU 39 prevents the strobe 4 from emitting light when the LCD cover 14 is open (that is, when the electronic viewfinder is used). In this way, the subject can be photographed in the state of the image displayed on the electronic viewfinder.

  In accordance with the date / time data supplied from the timer 45, the CPU 39 records information on the date / time of shooting as header information of the image data in the shot image recording area of the memory card 24. (That is, the shooting image data recorded in the shooting image recording area of the memory card 24 is accompanied by shooting date and time data).

  Further, the CPU 39 compresses the digitized audio information, temporarily stores the digitized and compressed audio data in the buffer memory 36, and then stores it in a predetermined area (audio recording area) of the memory card 24. It is made to record. At this time, recording date and time data is recorded in the audio recording area of the memory card 24 as header information of the audio data.

  The CPU 39 controls the lens driving circuit 30 and moves the photographing lens 3 to perform an autofocus operation, and also controls the diaphragm driving circuit 53 to control the diaphragm 54 disposed between the photographing lens 3 and the CCD 20. The opening diameter is changed.

  Further, the CPU 39 controls the in-finder display circuit 40 to display settings in various operations on the in-finder display element 26.

  The CPU 39 exchanges predetermined data with a predetermined external device (not shown) via an interface (I / F) 48.

  The CPU 39 receives a signal from the operation key 7 and processes it appropriately.

  When a predetermined position of the touch tablet 6A is pressed by a pen (pen-type instruction member) 41 operated by the user, the CPU 39 reads the XY coordinates of the pressed position of the touch tablet 6A, and the coordinate data (described later). (Line drawing information) to be stored in the buffer memory 36. The CPU 39 records the line drawing information stored in the buffer memory 36 in the line drawing information recording area of the memory card 24 together with the header information of the line drawing information input date and time.

  Next, various operations of the electronic camera 1 according to the present embodiment will be described. First, the electronic viewfinder operation in the LCD 6 of this apparatus will be described.

  When the user presses the release switch 10 halfway, the DSP 33 determines whether the LCD cover 14 is open from the value of the signal supplied from the CPU 39 and corresponding to the state of the LCD switch 25. If it is determined that is closed, the electronic viewfinder operation is not performed. In this case, the DSP 33 stops the process until the release switch 10 is operated.

  When the LCD cover 14 is closed, the electronic viewfinder operation is not performed, so the CPU 39 stops the operations of the CCD 20, the image processing unit 31, and the aperture driving circuit 53. Then, instead of stopping the CCD 20, the CPU 39 operates the photometry circuit 51 and the color measurement circuit 52 and supplies the measurement results to the image processing unit 31. The image processing unit 31 uses these measurement result values when performing white balance control or luminance value control.

  When the release switch 10 is operated, the CPU 39 causes the CCD 20 and the aperture driving circuit 53 to operate.

  On the other hand, when the LCD cover 14 is opened, the CCD 20 performs an electronic shutter operation at a predetermined exposure time every predetermined time, photoelectrically converts the light image of the subject condensed by the photographing lens 3, and The image signal obtained by the operation is output to the image processing unit 31.

  The image processing unit 31 performs white balance control and luminance value control, performs predetermined processing on the image signal, and then outputs the image signal to the A / D conversion circuit 32. When the CCD 20 is operating, the image processing unit 31 uses the adjustment value used for white balance control and luminance value control calculated by the CPU 39 using the output of the CCD 20.

  The A / D conversion circuit 32 converts the image signal (analog signal) into image data that is a digital signal, and outputs the obtained image data to the DSP 33.

  The DSP 33 outputs the image data to the frame memory 35 and causes the LCD 6 to display an image corresponding to the image data.

  As described above, in the electronic camera 1, when the LCD cover 14 is open, the CCD 20 performs an electronic shutter operation at a predetermined time interval, and each time the signal output from the CCD 20 is converted into image data. The electronic viewfinder operation is performed by outputting the image data to the frame memory 35 and continuously displaying the subject image on the LCD 6.

  Further, as described above, when the LCD cover 14 is closed, the electronic viewfinder operation is not performed, and the operations of the CCD 20, the image processing unit 31, and the aperture driving circuit 53 are stopped to save power consumption. ing.

  Next, shooting of a subject by this apparatus will be described.

  First, a case where the continuous shooting mode changeover switch 13 provided on the surface Y1 is switched to the S mode (a mode in which only one frame is shot) will be described. First, the power switch 11 shown in FIG. 1 is switched to the side where “ON” is printed to turn on the electronic camera 1. When the subject is confirmed with the finder 2 and the release switch 10 provided on the surface Y1 is pressed, the photographing process of the subject is started.

  When the LCD cover 14 is closed, when the release switch 10 is half-pressed, the CPU 39 restarts the operations of the CCD 20, the image processing unit 31, and the aperture drive circuit 53, and the release switch 10 When is fully pressed, the subject photographing process is started.

  An optical image of a subject observed with the finder 2 is condensed by the photographing lens 3 and formed on a CCD 20 having a plurality of pixels. The optical image of the subject imaged on the CCD 20 is photoelectrically converted into an image signal at each pixel and sampled by the image processing unit 31. The image signal sampled by the image processing unit 31 is supplied to the A / D conversion circuit 32 where it is digitized and output to the DSP 33.

  The DSP 33 once outputs the image data to the buffer memory 36, then reads the image data from the buffer memory 36, and follows a JPEG (Joint Photographic Experts Group) system that combines discrete cosine transform, quantization, and Huffman coding. The compressed image is recorded in the captured image recording area of the memory card 24. At this time, shooting date / time data is recorded in the shot image recording area of the memory card 24 as header information of the shot image data.

  When the continuous shooting mode switch 13 is switched to the S mode, only one frame is shot, and no further shooting is performed even if the release switch 10 is continuously pressed. When the release switch 10 is continuously pressed, the captured image is displayed on the LCD 6 when the LCD cover 14 is open.

  Secondly, a case where the continuous shooting mode switch 13 is switched to the L mode (a mode for performing continuous shooting of 8 frames per second) will be described. When the electronic switch 1 is turned on by switching the power switch 11 to the side printed “ON” and the release switch 10 provided on the surface Y1 is pressed, the photographing process of the subject is started.

  When the LCD cover 14 is closed, when the release switch 10 is half-pressed, the CPU 39 restarts the operations of the CCD 20, the image processing unit 31, and the aperture drive circuit 53, and the release switch 10 When is fully pressed, the subject photographing process is started.

  An optical image of a subject observed with the finder 2 is condensed by the photographing lens 3 and formed on a CCD 20 having a plurality of pixels. The light image of the subject imaged on the CCD 20 is photoelectrically converted into an image signal at each pixel, and is sampled by the image processing unit 31 at a rate of 8 times per second. At this time, the image processing unit 31 thins out three-fourths of the image electrical signals of all the pixels of the CCD 20.

  That is, the image processing unit 31 divides the pixels of the CCD 20 arranged in a matrix into areas each having 2 × 2 pixels (four pixels) as shown in FIG. The image signal of one pixel arranged at a predetermined position is sampled, and the remaining three pixels are thinned out.

  For example, at the time of the first sampling (first frame), the pixel a at the upper left of each region is sampled, and the other pixels b, c, d are thinned out. At the time of the second sampling (second frame), the upper right pixel b in each region is sampled, and the other pixels a, c, and d are thinned out. Hereinafter, at the time of the third sampling and the fourth sampling, the lower left pixel c and the lower right pixel d are sampled, and the other pixels are thinned out. That is, each pixel is sampled every four frames.

  The image signal sampled by the image processing unit 31 (image signal of one-fourth of all the pixels of the CCD 20) is supplied to the A / D conversion circuit 32, where it is digitized and output to the DSP 33.

  The DSP 33 once outputs the digitized image signal to the buffer memory 36, reads the image signal, compresses it according to the JPEG method, and converts the digitized and compressed photographed image data into the photographed image of the memory card 24. Record in the recording area. At this time, shooting date / time data is recorded in the shot image recording area of the memory card 24 as header information of the shot image data.

  Thirdly, a case where the continuous shooting mode changeover switch 13 is switched to the H mode (a mode for performing continuous shooting of 30 frames per second) will be described. When the electronic switch 1 is turned on by switching the power switch 11 to the side printed “ON” and the release switch 10 provided on the surface Y1 is pressed, the photographing process of the subject is started.

  When the LCD cover 14 is closed, when the release switch 10 is half-pressed, the CPU 39 restarts the operations of the CCD 20, the image processing unit 31, and the aperture drive circuit 53, and the release switch 10 When is fully pressed, the subject photographing process is started.

  An optical image of a subject observed with the finder 2 is condensed by the photographing lens 3 and formed on the CCD 20. An optical image of a subject formed on the CCD 20 having a plurality of pixels is photoelectrically converted into an image signal at each pixel, and is sampled by the image processing unit 31 at a rate of 30 times per second. At this time, the image processing unit 31 thins out 8/9 pixels of the image electrical signals of all the pixels of the CCD 20.

  That is, the image processing unit 31 divides the pixels of the CCD 20 arranged in a matrix into areas each having 3 × 3 pixels as shown in FIG. The image electrical signal of one arranged pixel is sampled at a rate of 30 times per second, and the remaining 8 pixels are thinned out.

  For example, at the time of the first sampling (first frame), the upper left pixel a of each region is sampled, and the other pixels b to i are thinned out. At the time of the second sampling (second frame), the pixel b arranged on the right side of the pixel a is sampled, and the other pixels a, c to i are thinned out. Hereinafter, in the third and subsequent samplings, the pixel c, the pixel d,... Are sampled, and the other pixels are thinned out. That is, each pixel is sampled every nine frames.

  The image signal sampled by the image processing unit 31 (image signal of 1/9 of all the pixels of the CCD 20) is supplied to the A / D conversion circuit 32, where it is digitized and output to the DSP 33.

  The DSP 33 once outputs the digitized image signal to the buffer memory 36, reads the image signal, compresses it according to the JPEG method, and then adds header information of the shooting date and time to the digitized and compressed shot image data Then, it is recorded in the captured image recording area of the memory card 24.

  If necessary, the strobe 4 can be operated to irradiate the subject with light. However, when the LCD cover 14 is open, that is, when the LCD 6 is performing an electronic viewfinder operation, the CPU 39 controls the strobe 4 not to emit light.

  Next, an operation when inputting two-dimensional information (pen input information) from the touch tablet 6A will be described.

  When the touch tablet 6 </ b> A is pressed with the pen tip of the pen 41, the XY coordinates of the contacted part are input to the CPU 39. The XY coordinates are stored in the buffer memory 36. In addition, data can be written at locations corresponding to the respective points of the XY coordinates in the frame memory 35, and a line drawing corresponding to the touch of the pen 41 can be displayed at the XY coordinates of the LCD 6.

  As described above, since the touch tablet 6A is made of a transparent member, the user can observe a point displayed on the LCD 6 (a point at a position pressed by the pen tip of the pen 41). It can be felt as if the pen input was made directly on the LCD 6. When the pen 41 is moved on the touch tablet 6 </ b> A, a line accompanying the movement of the pen 41 is displayed on the LCD 6. Further, when the pen 41 is moved intermittently on the touch tablet 6 </ b> A, a broken line accompanying the movement of the pen 41 is displayed on the LCD 6. As described above, the user inputs line drawing information such as desired characters and figures into the touch tablet 6A (LCD 6).

  In addition, when a photographed image is displayed on the LCD 6, when line drawing information is input by the pen 41, this line drawing information is combined with the photographed image information in the frame memory 35 and displayed on the LCD 6 at the same time. .

  The user can select the color of the line drawing displayed on the LCD 6 from black, white, red, blue, and the like by operating a color selection switch (not shown).

  After the line drawing information is input to the touch tablet 6A by the pen 41, when the execution key 7B of the operation key 7 is pressed, the line drawing information stored in the buffer memory 36 is supplied to the memory card 24 together with the header information of the input date and time. And is recorded in the line drawing information recording area of the memory card 24.

  The line drawing information recorded on the memory card 24 is information subjected to compression processing. Since the line drawing information input to the touch tablet 6A contains a large amount of information having a high spatial frequency component, if compression processing is performed by the JPEG method used for compression of the photographed image, the compression efficiency is poor. It takes a long time. Furthermore, since compression using the JPEG method is irreversible compression, it is not suitable for compression of line drawing information with a small amount of information (when decompressed and displayed on the LCD 6, gathers and blurs due to missing information are prominent. To end up).

  Therefore, in the present embodiment, the line drawing information is compressed by a run length method used in a fax or the like. The run length method scans a line drawing screen in the horizontal direction and continues the length of information (dots) for each color such as black, white, red, and blue, and the length of no information (portion without pen input). This is a method of compressing line drawing information by encoding the length.

  By using this run length method, the line drawing information can be compressed optimally, and even when the compressed line drawing information is expanded, it is possible to suppress the loss of information. Note that the line drawing information may be not compressed when the amount of information is relatively small.

  Further, as described above, when a photographic image is displayed on the LCD 6, when a pen input is performed, the photographic image data and the pen-drawn line drawing information are synthesized in the frame memory 35, and the synthesized image of the photographic image and the line drawing is obtained. Is displayed on the LCD 6. On the other hand, in the memory card 24, the captured image data is recorded in the captured image recording area, and the line drawing information is recorded in the line drawing information recording area. In this way, since the two pieces of information are recorded in different areas, the user can delete either one of the images (for example, line drawing) from the combined image of the captured image and the line drawing. The image information can also be compressed by an individual compression method.

  When data is recorded in the audio recording area, the photographed image recording area, or the line drawing information recording area of the memory card 24, a predetermined display is performed on the LCD 6, as shown in FIG.

  On the display screen of the LCD 6 shown in FIG. 9, the date when the information was recorded (recorded date) (in this case, August 25, 1995) is displayed at the lower end of the screen. The recording time of the information recorded on the month and day is displayed on the leftmost side of the screen.

  A thumbnail image is displayed on the right side of the recording time. This thumbnail image is created by thinning out (reducing) the bitmap data of each image data of the photographed image data recorded in the memory card 24. Information with this display is information including photographed image information. That is, the information recorded (input) at “10:16” and “10:21” includes the captured image information, and “10:05”, “10:28”, “ The information recorded at “10:54” and “13:10” does not include image information.

  The memo symbol “*” indicates that a predetermined memo is recorded as line drawing information.

  An audio information bar is displayed on the right side of the thumbnail image display area, and a bar (line) with a length corresponding to the length of the recording time is displayed (not displayed if no audio information is input) .

  The user selects and designates information to be reproduced by pressing any part of the display line of desired information on the LCD 6 shown in FIG. 9 with the pen tip of the pen 41, and the execution key 7 B shown in FIG. The selected information is reproduced by pressing with the pen tip.

  For example, when the line displaying “10:05” shown in FIG. 9 is pressed by the pen 41, the CPU 39 stores the audio data corresponding to the selected recording date and time (10:05) in the memory card 24. And the audio data is decompressed and supplied to the A / D and D / A conversion circuit 42. The A / D and D / A conversion circuit 42 converts the supplied audio data into an analog signal and reproduces it through the speaker 5.

  When playing back the captured image data recorded in the memory card 24, the user selects the desired thumbnail image by pressing the pen tip of the pen 41, and presses the execution key 7B to play back the selected information. .

  The CPU 39 instructs the DSP 33 to read out the photographed image data corresponding to the selected photographing date and time from the memory card 24. The DSP 33 expands the captured image data (compressed captured image data) read from the memory card 24, stores the captured image data in the frame memory 35 as bitmap data, and displays the data on the LCD 6.

  The image shot in the S mode is displayed on the LCD 6 as a still image. It goes without saying that this still image is a reproduction of the image signal of all the pixels of the CCD 20.

  Images taken in the L mode are continuously displayed on the LCD 6 at a rate of 8 frames per second. At this time, the number of pixels displayed in each frame is a quarter of the total number of pixels of the CCD 20.

  Normally, the human eye reacts sensitively to degradation of the resolution of a still image, and thus thinning out still image pixels is perceived by the user as degradation of image quality. However, when the continuous shooting speed at the time of shooting is increased and 8 frames are shot per second in the L mode and this image is reproduced at a speed of 8 frames per second, the number of pixels of each frame is the number of pixels of the CCD 20. Although it is a quarter of the number, since the human eye observes eight frames of images per second, the amount of information that enters the human eye per second is twice that of a still image.

  That is, if the number of pixels of one frame of an image shot in the S mode is 1, the number of pixels of one frame of the image shot in the L mode is ¼. When an image (still image) shot in the S mode is displayed on the LCD 6, the amount of information that enters the human eye per second is 1 (= (number of pixels 1) × (number of frames 1)). On the other hand, when an image shot in the L mode is displayed on the LCD 6, the amount of information that enters the human eye per second is 2 (= (number of pixels 1/4) × (number of frames 8)) (that is, The human eye contains twice as much information as still images). Therefore, even when the number of pixels in one frame is reduced to ¼, the user can observe the reproduced image without much concern for the deterioration of the image quality during reproduction.

  Furthermore, in the present embodiment, different pixels are sampled for each frame, and the sampled pixels are displayed on the LCD 6, so that an afterimage effect occurs in the human eye and three-quarters per frame. Even if the pixels are thinned out, the user can observe the image shot in the L mode displayed on the LCD 6 without much concern about the deterioration of the image quality.

  In addition, images taken in the H mode are continuously displayed on the LCD 6 at a rate of 30 frames per second. At this time, the number of pixels displayed in each frame is 1/9 of the total number of pixels of the CCD 20, but for the same reason as in the L mode, the user does not care much about the deterioration of the image quality. An image taken in the H mode displayed on the LCD 6 can be observed.

  In this embodiment, when the subject is imaged in the L mode and the H mode, the image processing unit 31 thins out the pixels of the CCD 20 to such an extent that the image quality is not deteriorated during reproduction. The load can be reduced, and the DSP 33 can be operated at low speed and low power. In addition, this makes it possible to reduce the cost and power consumption of the apparatus.

  By the way, in this embodiment, as shown in FIG. 10, it is possible to connect two electronic cameras 1-A and 1-B via a public line 61 and communicate with each other. Hereinafter, an operation mode in which two electronic cameras are connected to each other via a communication line and communication is performed between them will be referred to as a videophone mode.

  In the example shown in FIG. 10, the electronic camera 1 -A is connected to the public line 61 via the connection line 60, and the electronic camera 1 -B is connected to the public line 61 via the connection line 62. . At this time, each photographing lens 3 is directed in the normal direction of the surface X2 (the direction in which the user is present), and the optical image of the user converted into an image signal by the CCD 20 is mutually connected via the public line 61. Is transmitted and displayed on each LCD 6. Therefore, an image of a user who is a communication partner is displayed on the LCD 6 of each of the electronic cameras 1-A and 1-B.

  FIG. 11 shows an example of a format of information transmitted via the public line 61 between the electronic cameras 1-A and 1-B. As shown in this figure, the information transmitted via the public line 61 includes a header 70 storing information indicating the type of information transmitted immediately after that, and a control for controlling the electronic camera 1 of the communication partner. It consists of control information 71, image information 72, memo image information 73 composed of line drawings and the like, and audio information 74. Depending on the type of information to be transmitted, the control information 71, the image information 72, the memo image information 73, or the audio information 74 may not be included.

  FIG. 12 is a flowchart for explaining an example of processing executed in the electronic camera 1-A or 1-B. This process is executed when the menu key 7A is operated and a menu screen (not shown) is displayed. In the following description, it is assumed that the electronic camera 1-A is a transmission side and the electronic camera 1-B is a reception side.

  When the process shown in FIG. 12 is executed, the CPU 39 determines whether or not the videophone mode is selected from the selection items on the menu screen in step S1. As a result, if it is determined that an item other than the videophone mode has been selected (NO), the process ends (end), and if it is determined that the videophone mode has been selected (YES), a step is performed. Proceed to S2.

  In step S2, the CPU 39 refers to the output of the potentiometer 56 (see FIG. 6), and determines whether the rotating unit 19 is directed toward the user (whether the photographing lens 3 is directed in the normal direction of the surface X2). Determine whether. In this case, as a criterion for determination, as shown in FIG. 5C, when the optical axis of the photographing lens 3 is within a range of ± 30 ° with respect to the normal direction of the surface X2, It is determined that the rotating unit 19 is directed toward the user side (YES), and in other cases, it is determined that it is not directed toward the user side (NO).

  If it is determined in step S2 that the rotation unit 19 is not directed toward the user (NO), the process proceeds to step S3, and a message prompting the rotation unit 19 to be directed toward the user (eg, “rotation unit 19”). ”) Is displayed on the LCD 6, the process returns to step S 2, and the same processing is repeated until the rotating unit 19 is directed to the user side. Moreover, when it determines with the rotation part 19 being turned to the user side in step S2 (YES), it progresses to step S4.

  In step S4, the CPU 39 displays number keys 80 to 91 as shown in FIG. 13 on the LCD 6, and allows the user to input the telephone number of the communication partner. In this display example, a window 79 for displaying the telephone number input by the numeric keys 80 to 91 is displayed at the top of the screen so that the input telephone number can be confirmed. Yes. When the telephone number is input and the execution key 7B is pressed, the process proceeds to step S5.

  In step S <b> 5, the CPU 39 controls the modem unit 57 to output, for example, a tone signal corresponding to the input telephone number to the public line 61. As a result, the communication line is closed with the communication partner (incoming side).

  In the subsequent step S6, the CPU 39 starts data transmission with the communication partner. That is, the image of the user A (sender) captured by the electronic camera 1-A (sender side) shown in FIG. 10 is transmitted via the public line 61 and is sent to the LCD 6 of the electronic camera 1-B (sender side). Is displayed. As a result, an image (user A's image) as shown in FIG. 14 is displayed on the electronic camera 1-B.

  In the subsequent step S7, the CPU 39 starts receiving data transmitted from the incoming side. That is, the image of the user B (the called party) taken by the electronic camera 1-B is transmitted via the public line 61 and displayed on the LCD 6 of the electronic camera 1-A. FIG. 15 shows a display example of an image (user B image) displayed on the LCD 6 of the electronic camera 1-A.

  In step S8, the CPU 39 determines whether any of the touch tablet 6A, the operation key 7, the release switch 10, or the recording switch 12, which is an operation member, has been operated. As a result, if it is determined that any of these has been operated (YES), the process proceeds to step S9. If it is determined that none of these has been operated (NO), the process of step S9 is skipped and the process proceeds to step S10.

  In step S9, process 1 is executed. The process 1 is a subroutine process, and details thereof will be described later with reference to FIG.

  In step S <b> 10, if the control information 71 is included in the data (data transmitted from the communication partner) received by the modem unit 57, the CPU 39 extracts it.

  In subsequent step S11, the CPU 39 determines whether or not the control information 71 has been acquired from the received data. As a result, if it is determined that the control information 71 can be acquired from the received data (YES), the process proceeds to step S12. If it is determined that the control information 71 cannot be acquired (NO), the process proceeds to step S12. The process of S12 is skipped and the process proceeds to step S13. Note that the process 2 of step S12 is a subroutine, and details thereof will be described later with reference to FIGS.

  In step S13, the CPU 39 determines whether or not an operation for ending the videophone mode has been performed. For example, when the cancel key 7D is pressed, the CPU 39 determines that an operation to end the videophone mode has been performed (YES), and proceeds to step S14. If it is determined that the cancel key 7D is not pressed (NO), the process returns to step S8, and the same process as described above is repeated.

  In step S14, the CPU 39 performs processing for disconnecting the communication line, and proceeds to step S15. In step S15, the CPU 39 displays the image input from the CCD 20 on the LCD 6 (shifts to the electronic viewfinder mode), and ends the processing (END).

  According to the above processing, when the videophone mode is selected on the menu screen, it is determined whether or not the turning unit 19 is directed toward the user side. The communication line is closed between and and data communication is started. When data communication is started, it is determined whether or not the operating member has been operated, and whether or not control information has been sent from the communication partner. As a result, when it is determined that the operation member has been operated, a corresponding process is performed, and when it is determined that the control information is sent from the communication partner, a process corresponding to the control information is performed.

  Next, the details of the process 1 shown in FIG. 12 will be described with reference to the flowchart shown in FIG. When this process is executed (called), in step S30, the CPU 39 determines whether or not the menu key 7A has been operated. As a result, if it is determined that the menu key 7A has not been operated (NO), the process proceeds to step S37. If it is determined that the menu key 7A has been operated (YES), the process proceeds to step S31.

  In step S31, the CPU 39, for example, as shown in FIG. 18, “RECORDING (recording) mode”, “PLAY BACK (playback) mode”, “SLIDE SHOW (slide show) mode”, and “SET UP (setting)”. A menu screen with “Mode” as a selection item is displayed. In step S32, the CPU 39 transmits control information for displaying the menu screen to the receiving side via the modem unit 57. As a result, a menu screen similar to that shown in FIG.

  In subsequent step S33, CPU 39 determines whether or not a predetermined item has been selected on the menu screen. As a result, if it is determined that a predetermined item has been selected (YES), the process proceeds to step S34. If it is determined that the predetermined item is not selected (NO), the process proceeds to step S35.

  In step S <b> 34, the CPU 39 transmits control information indicating that a predetermined item has been selected to the called party via the modem unit 57. In step S35, it is determined whether or not the modem unit 57 has received control information indicating that a predetermined item has been selected on the receiving side. As a result, if it is determined that the predetermined control information has not been received (NO), the process returns to step S33, and the same process as described above is repeated. If it is determined that the predetermined control information has been received (YES), the process proceeds to step S36.

  In step S36, processing corresponding to the selected item (or the item indicated by the received control information) is executed. For example, when “reproduction mode” is selected on the transmission side, not only the electronic camera 1-A but also the electronic camera 1-B shifts to the reproduction mode. The same operation is also executed when “playback mode” is selected on the receiving side.

  If the clear key 7C is operated while the playback mode is being executed, and the information being played back is recorded in the electronic camera 1 that has been operated, the image being played back May be deleted from the memory card 24 and may not be deleted (the operation on the cancel key 7C is ignored) if the information being reproduced is recorded in the electronic camera 1 of the communication partner. According to such a configuration, it is possible to prevent the communication partner from deleting without knowing important information.

  In the subsequent step S37, the CPU 39 rotates the rotating unit 19 from the predetermined range (within the range where the optical axis of the photographing lens 3 is within ± 30 ° with respect to the normal direction of the surface X2) to the outside of the predetermined range. It is determined whether it is rotated from outside the predetermined range to within the predetermined range, or in other cases (for example, when the rotating unit is not rotated). As a result, if it is determined that the rotation unit 19 has been rotated from the predetermined range to the outside of the predetermined range (1), the process proceeds to step S38. If it is determined that the rotation unit 19 has been moved from outside the predetermined range to within the predetermined range (2), the process proceeds to step S40. Further, if it is determined that the other is (3), the process proceeds to step S42.

  If it is determined in step S37 that the rotating unit 19 has been rotated from the predetermined range to the outside of the predetermined range (1), the process proceeds to step S38, and the CPU 39 displays the image input from the CCD 20 on the LCD 6. Let In step S39, the CPU 39 receives the image information input from the CCD 20 of the electronic camera 1-A on the transmission side and the control information for instructing to display the image information via the modem unit 57. To the electronic camera 1-B.

  If it is determined in step S37 that the rotation unit 19 has been rotated from outside the predetermined range to within the predetermined range (2), the process proceeds to step S40, and the CPU 39 receives the input from the CCD 20 on the incoming side. Thereafter, the transmitted image is received by the modem unit 57. In step S41, the received image is displayed on the LCD 6.

  Furthermore, when it is determined in step S37 that the other is the case (for example, the rotating unit 19 is not rotated), the process proceeds to step S42.

  In step S <b> 42, the CPU 39 refers to the output of the touch tablet 6 </ b> A and determines whether pen input has been performed. As a result, if it is determined that no pen input is made (NO), the process proceeds to step S50 of FIG. 17, and if it is determined that pen input is made (YES), the process proceeds to step S43.

  In step S43, the CPU 39 causes the LCD 6 to display a pen input screen (for example, a screen in which the background color is blue). In step S44, the CPU 39 transmits control information for displaying a pen input screen to the incoming side. As a result, a similar pen input screen is displayed on the incoming side.

  In step S45, the memo information input by the pen 41 on the transmission side is displayed on the LCD 6. FIG. 19 is a diagram illustrating a state in which a memo image (line drawing) input by the pen 41 is displayed on the LCD 6 as a result of the process of step S45 (or the process of step S47). In this display example, a circuit using an operational amplifier is input as a line drawing, and when the pen 41 is moved on the touch tablet 6A, a curve corresponding thereto is displayed on the LCD 6. When the process of step S45 is completed, the process proceeds to step S46, where the CPU 39 transmits the input memo image to the incoming side via the modem unit 57.

  In step S <b> 47, the CPU 39 causes the modem unit 57 to receive the memo information input with the pen 41 on the incoming side, and writes the received image superimposed on the data stored in the frame memory 35. As a result, the memo image input on the outgoing side and the memo image input on the incoming side are superimposed and displayed on the LCD 6. That is, as shown in FIG. 19, when an input is made with the pen 41 on the touch tablet 6A on the incoming side, the cursor 100 is displayed at the corresponding position on the LCD 6 on the outgoing side, and the locus of the cursor 100 is It will be displayed as a curve. On the incoming side, the position of the pen 41 on the outgoing side is represented by the cursor 100, and a curve corresponding to the locus of the pen 41 on the incoming side is drawn. Accordingly, similar images are displayed on the calling side and the receiving side.

  In step S48, the CPU 39 determines whether or not a predetermined operation (for example, an operation of pressing the cancel key 7D) for ending the pen input mode has been performed. As a result, if it is determined that the predetermined operation for terminating the pen input is not performed (NO), the process returns to step S45, and the same process as described above is repeated. On the other hand, if it is determined that an operation to end the pen input has been performed (YES), the process proceeds to step S49.

  In step S49, processing for terminating the pen input is executed. That is, the CPU 39 restores the display screen (for example, displays an image input in the incoming CCD 20), and transmits control information for ending pen input to the transmission partner. Then, the process proceeds to step S50 in FIG.

  In step S50 of FIG. 17, the CPU 39 determines whether or not the release switch 10 has been operated. As a result, when it is determined that the release switch 10 is not operated (NO), the process returns (returns) to the original process (the process of step S10 in FIG. 12). If it is determined that the release switch 10 has been operated (YES), the process proceeds to step S51.

  In step S51, shooting processing is executed. That is, the image signal of the subject output from the CCD 20 is sampled by the image processing unit 31, digitized by the A / D conversion circuit 32, and output to the DSP 33. The DSP 33 compresses the digitized image based on the JPEG method and records it in the captured image recording area of the memory card 24. Then, the process proceeds to step S52.

  In step S52, the CPU 39 transmits control information for displaying the captured image data to the communication partner via the modem unit 57.

  In the subsequent step S53, the CPU 39 reads out the photographed image (image photographed in step S51) data from the memory card 24 and transmits it to the communication partner via the modem unit 57. And it returns (returns) to the original process (process of step S10 of FIG. 12).

  According to the above processing, when the menu key 7A is operated on either the caller side or the callee side, the menu screen is displayed on both LCDs 6, and both select an arbitrary item from the menu screen. It becomes possible to do.

  For example, when the menu key 7A is operated on the transmission side, the menu screen is displayed on both the transmission side and the reception side. For example, when the playback mode is selected on the incoming side, an image captured on the outgoing side (side on which the menu is displayed) is played back. When the menu key 7A is pressed on the incoming side and the playback mode is selected, the image captured on the incoming side is reproduced.

  In addition, when the transmission-side rotating unit 19 is rotated from the predetermined range to the outside of the predetermined range (when the photographing lens 3 is directed in the direction opposite to the user), the input is performed from the CCD 20 on the transmission side. The images are displayed on the LCD 6 on both the outgoing side and the incoming side. When the incoming side turning unit 19 is operated in the same manner, an image input from the incoming side CCD 20 is displayed on both LCDs 6. That is, when the rotating unit 19 is directed in a direction different from the user, it is assumed that the user has no intention to transmit his / her image to the communication partner and is trying to transmit another image. In this case, the image input from the CCD 20 is transmitted to the communication partner, and the same image is also displayed on the LCD 6 on the own side so that the display content can be confirmed.

  Further, in the state as described above (when any of the rotating parts 19 is fixed outside the predetermined range), when the rotating part 10 is returned within the predetermined range, the communication partner CCD 20 The image input from is received and displayed. That is, when the rotating unit 19 is returned to the original position, it is assumed that the will to transmit an image other than the user (for example, an image of a person other than the user) has been lost, and the user image is transmitted to the communication partner. At the same time, the image of the communication partner user is displayed on the LCD 6 (returns to the videophone mode).

  In addition, when the release switch 10 is operated on either the caller side or the callee side, shooting processing is executed, and the resulting shot image is transmitted to the electronic camera 1 of the communication partner and shot. The photographed image is displayed not only on the side that has done this but also on the LCD 6 on the communication partner side.

  In other words, when an operation for displaying an image on the own side is performed on either the outgoing side or the incoming side (for example, when the rotating unit 19 is rotated from the predetermined range to the outside range, or When the release switch 10 is operated), the image on the own side is displayed on both the own side and the other side. With this configuration, when any user wants to transmit an image other than the user's confidence image to the communication partner, it is possible to check the image transmitted to the partner side.

  Next, the details of the process 2 will be described with reference to FIGS.

  When this process is executed, in step S60, the CPU 39 determines whether or not control information for displaying a menu screen has been received. That is, it is determined whether or not control information for displaying the menu screen is sent via the public line 61 as a result of pressing the menu key 7A on the receiving side. As a result, if it is determined that the control information for displaying the menu screen has not been received (NO), the process proceeds to step S66. If it is determined that the control information for displaying the menu screen has been received (YES), Proceed to step S61.

  In step S61, the CPU 39 displays a menu screen (see FIG. 18) on the LCD 6. In step S62, it is determined whether a predetermined item has been selected. As a result, if it is determined that a predetermined item has been selected (YES), the process proceeds to step S63. If it is determined that a predetermined item has not been selected (NO), the process proceeds to step S64.

  In step S64, the CPU 39 determines whether or not the modem unit 57 has received control information indicating that a predetermined item has been selected. As a result, when it is determined that the control information indicating that the predetermined item has been selected has not been received (NO), the process returns to step S62, and the same process as described above is repeated. If it is determined that control information indicating that a predetermined item has been selected is received (YES), the process proceeds to step S65.

  On the other hand, in step S63, the CPU 39 transmits control information for selecting the predetermined item acquired in step S62 to the incoming side. Then, the process proceeds to step S65.

  In step S65, processing corresponding to the selected item is executed. That is, the CPU 39 executes processing corresponding to the item selected on the caller side or the item selected on the callee side. For example, when the playback mode is selected on either side, an image captured on the transmission side (the side on which the operation for displaying the menu screen is executed) is played back.

  In the subsequent step S66, the CPU 39 determines whether or not control information for displaying the image input from the CCD 20 (information transmitted in step S39 in FIG. 16) has been received. As a result, if it is determined that the control information has not been received (NO), the process proceeds to step S68. If it is determined that the control information has been received (YES), the process proceeds to step S67.

  In step S <b> 67, the CPU 39 displays the image data received by the modem unit 57 on the LCD 6. As a result, an image input from the incoming CCD 20 is displayed on the LCD 6.

  In the subsequent step S68, the CPU 39 determines whether or not control information for displaying the pen input screen (information transmitted in the process of step S44 in FIG. 16) has been received. As a result, if it is determined that the control information for displaying the pen input screen has not been received (NO), the process proceeds to step S75 in FIG. If it is determined that the control information for displaying the pen input screen has been received (YES), the process proceeds to step S69.

  In step S69, the CPU 39 displays a pen input screen (for example, a screen with a blue background color) on the LCD 6, and proceeds to step S70. In step S <b> 70, the line drawing (memo image) received by the modem unit 57 after being input and transmitted from the incoming touch tablet 6 </ b> A is displayed on the LCD 6.

  In step S <b> 71, the CPU 39 writes the memo image input from the touch-side touch tablet 6 </ b> A by superimposing it on the image displayed on the LCD 6. As a result, the LCD 6 displays the memo image input from the touch tablet 6A on the transmission side and the memo image input from the incoming touch tablet 6A and transmitted.

  In step S <b> 72, the CPU 39 transmits the memo image input from the touch-side touch tablet 6 </ b> A to the receiving side via the modem unit 57. As a result, the memo image input from the touch-side touch tablet 6A is also displayed on the incoming-side LCD 6.

  In a succeeding step S73, it is determined whether or not to end the pen input. That is, the CPU 39 determines whether or not an operation for ending pen input (for example, an operation on the cancel key 7D) has been performed. As a result, if it is determined that the operation for terminating the pen input is not executed (NO), the process returns to step S70, and the same processing as described above is repeated. If it is determined that an operation for ending pen input has been executed (YES), the process proceeds to step S74.

  In step S74, processing for ending pen input is executed. That is, the CPU 39 restores the display (for example, displays an image input from the communication partner CCD 20 on the LCD 6), and transmits control information for terminating the pen input to the transmission partner. Then, the process proceeds to step S75 in FIG.

  In step S75, the CPU 39 refers to the output from the modem unit 57 and determines whether or not control information for displaying a captured image has been received. As a result, if it is determined that the control information for displaying the captured image has not been received (NO), the process returns (returns) to the original process (the process of step S13 in FIG. 12). If it is determined that the control information for displaying the captured image is received (YES), the process proceeds to step S76. That is, when the release switch 10 is operated on the communication partner side and control information (control information for displaying a captured image) transmitted as a result is received, the process proceeds to step S76.

  In step S <b> 76, the CPU 39 receives photographed image data transmitted from the communication counterpart via the modem unit 57. Then, the process proceeds to step S77.

  In step S77, the CPU 39 performs an expansion process on the captured image data received in step S76, and then causes the LCD 6 to display it. And it returns (returns) to the original process (process of step S13 of FIG. 12).

  According to the above processing, according to the control information transmitted from the incoming side, for example, a menu screen is displayed, a pen input is performed, or a photographed image taken on the communication partner side is displayed. Is possible.

  Next, an example of processing executed in the electronic camera 1-B on the incoming side will be described with reference to FIG. When this process is executed, the CPU 39 determines whether or not the videophone mode is selected on the menu screen displayed by operating the menu key 7A. As a result, if it is determined that the videophone mode is not selected (NO), the process is terminated (END). If it is determined that the videophone mode has been selected (YES), the process proceeds to step S91.

  In step S91, the CPU 39 determines whether or not the rotation unit 19 is directed toward the user side. As a result, if it is determined that the rotation unit 19 is not directed to the user side (NO), the process proceeds to step S92, and a message for prompting the rotation unit 19 to be directed to the user side (for example, “ “Please turn to yourself”) is displayed on the LCD 6, the process returns to step S 91, and the same processing is repeated until the rotating unit 19 is directed to the user side. If it is determined that the turning unit 19 is directed toward the user (YES), the process proceeds to step S93.

  In step S93, it is determined whether or not the communication line is closed with the communication partner. That is, the CPU 39 determines whether or not a call is made from the calling side and the communication line is closed. As a result, if it is determined that the line is not closed (NO), the process returns to step S93, and the same processing is repeated until the communication line is closed. If it is determined that the communication line is closed (YES), the process proceeds to step S94.

  In step S94, the CPU 39 sends a predetermined control signal to the modem unit 57 to start data reception processing. As a result, the image input from the CCD 20 on the outgoing side is received by the modem unit 57 on the incoming side and displayed on the LCD 6 on the incoming side. In the subsequent step S95, the modem 57 starts data transmission processing in the same manner. As a result, the image inputted from the CCD 20 on the incoming side is transmitted by the modem unit 57 and displayed on the LCD 6 on the outgoing side.

  In step S96, the CPU 39 determines whether or not the operation member (touch tablet 6A, operation key 7, release switch 10, or recording switch 12) has been operated. As a result, when it is determined that the operation member is not operated (NO), the process proceeds to step S98. If it is determined that the operation member has been operated (YES), the process proceeds to step S97.

  In step S97, process 1 is executed. Since this process is the same as the process shown in FIG. 16, the description thereof is omitted.

  In the subsequent step S98, the CPU 39 extracts the control information if it is included in the received data. In step S99, the CPU 39 determines whether control information has been acquired. As a result, if it is determined that control information has not been acquired (NO), the process proceeds to step S101. If it is determined that the control information has been acquired (YES), the process proceeds to step S100.

  In step S100, process 2 is executed. Since the process 2 is the same as the process shown in FIGS. 20 and 21, its description is omitted. When the process of step S100 ends, the process proceeds to step S101.

  In step S101, the CPU 39 determines whether or not a predetermined operation for ending the videophone mode has been performed. For example, if the cancel key 7D is pressed, the CPU 39 determines that an operation to end the videophone mode has been performed (YES), and proceeds to step S102. If it is determined that the cancel key 7D is not pressed (NO), the process returns to step S96, and the same processing as described above is repeated.

  In step S102, line disconnection processing is executed, and the communication line with the caller is disconnected. In step S103, an image input from the CCD 20 is selected as an image to be displayed on the LCD 6. Then, the process ends (END).

  According to the above processing, the communication line is closed with the transmission side, and communication with the transmission side becomes possible.

  Needless to say, the present invention is not limited to the electronic camera of the above-described embodiment, and can be applied to, for example, a mobile phone.

  12, 16, 17, 20, 21, and 22 are stored in the memory card 24. Note that these programs may be supplied to the user in a state of being stored in the memory card 24 in advance, or stored in a CD-ROM (Compact Disc-ROM) or the like so as to be copied to the memory card 24. It may be supplied to the user in a state.

It is a perspective view which shows the structure at the time of seeing from the front of one Embodiment of the electronic camera to which this invention is applied. It is a perspective view which shows the structure at the time of seeing from the back surface of the electronic camera 1 shown in FIG. It is a perspective view which shows the electronic camera 1 of the state which closed the LCD cover. It is a perspective view which shows the structure inside the electronic camera 1 shown in FIG.1 and FIG.2. It is a figure explaining the relationship between the position of the LCD cover 14, and the state of the power switch 11 and the LCD switch 25. FIG. FIG. 3 is a block diagram showing an internal electrical configuration of the electronic camera shown in FIGS. 1 and 2. It is a figure explaining the thinning-out process of the pixel at the time of L mode. It is a figure explaining the thinning-out process of the pixel at the time of H mode. It is a figure which shows the example of the display screen of the electronic camera shown in FIG.1 and FIG.2. It is a figure which shows the connection relationship at the time of connecting the electronic camera shown in FIG. 1 via a public line. It is a figure which shows an example of the format of the information which the electronic camera shown in FIG. 10 transmits mutually via a public line. It is a flowchart explaining an example of the process performed in electronic camera 1-A shown in FIG. 13 is a display example of a screen displayed on the LCD 6 in step S4 shown in FIG. It is a figure which shows the example of a display of the image displayed on the electronic camera 1-B by the process shown in FIG. It is a figure which shows the example of a display of the image displayed on electronic camera 1-A by the process shown in FIG. It is a flowchart explaining the detail of the process 1 shown to FIG.12 S9. It is a flowchart explaining the detail of the process 1 shown to FIG.12 S9. It is a figure which shows an example of the menu screen displayed on LCD6 in step S31 of FIG. It is a figure which shows the example of a display of the image displayed when pen input is made. It is a flowchart explaining the detail of the process shown to FIG.12 S12. It is a flowchart explaining the detail of the process shown to FIG.12 S12. It is a flowchart explaining an example of the process performed in the electronic camera 1-B shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic camera 2 Finder 3 Shooting lens 4 Light emission part 5 Speaker 6 LCD
6A touch tablet (image input means, selection means)
7 Operation key 7A Menu key 7B Execution key 7C Clear key 7D Cancel key 7E Scroll key 8 Microphone 9 Earphone jack 10 Release switch 11 Power switch 12 Recording switch 13 Continuous shooting mode switch 15 Red-eye reduction lamp 16 Photometric element 17 Colorimetric element 20 CCD (image input means)
21 Battery 22 Capacitor 23 Circuit board 24 Memory card (recording means)
25 LCD switch 26 Display element in viewfinder 30 Lens drive circuit 31 Image processing unit 32 Analog / digital conversion circuit 33 Digital signal processor (DSP: recording means)
34 CCD drive circuit 35 Frame memory (output means)
36 Buffer memory 37 Strobe drive circuit 38 Red-eye reduction lamp drive circuit 39 CPU (switching means, control means)
40 Finder Display Circuit 42 A / D and D / A Conversion Circuit 45 Timer 48 Interface 51 Photometry Circuit 52 Color Measurement Circuit 53 Aperture Drive Circuit 54 Aperture

Claims (9)

In an information processing apparatus connected to another information processing apparatus and communicating information with each other,
A display device;
A first mode in which an image to be displayed on a display device of the other information processing device is transmitted to the other information processing device, and an image transmitted from the other information processing device is displayed on the display device; First switching means for switching between a second mode for displaying the same image on the display device and the display device of the other information processing device;
Second switching means for switching the same image to an image transmitted to the other information processing apparatus or an image transmitted from the other information processing apparatus in the second mode;
With
The second switching means instructs to change an image displayed on the other information processing apparatus when changing an image to be displayed on at least the display apparatus of the other information processing apparatus in the second mode. Send control signal
An information processing apparatus characterized by that . In the second mode, when the second switching means receives a control signal transmitted from the other information processing apparatus and instructing to change an image displayed on the display apparatus, the second switching means Changing the image to be displayed
The information processing apparatus according to claim 1. It further comprises image input means for taking an image,
The image displayed on the display device of the other information processing device in the first mode is an image taken by the image input means,
An image transmitted from the other information processing apparatus in the first mode is an image taken by an image input unit of the other information processing apparatus.
The information processing apparatus according to claim 1 or 2. The image transmitted to the other information processing apparatus in the second mode is an image taken by the image input means,
The image transmitted from the other information processing apparatus in the second mode is an image taken by the image input means of the other information processing apparatus.
The information processing apparatus according to claim 3. The image input means includes a rotation unit that changes a shooting direction,
When the photographing direction of the image input means is changed from the user side to the other side by the rotation of the rotation unit,
The first switching means switches to the second mode;
The second switching means switches to display the same image as the image displayed on the display device on the display device of the other information processing device, and switches the display device to the other information processing device. A control signal instructing to display the image captured by the displayed image input means on the display device of the other information processing device is transmitted.
The information processing apparatus according to claim 4. The image input means includes a rotation unit that changes a shooting direction,
When the photographing direction of the image input unit is changed from the other side to the user side by the rotation of the rotation unit, the first switching unit switches to the first mode, and the display device An image captured and transmitted by an image input unit of another information processing apparatus is displayed, and an image captured by the image input unit is displayed on the display device of the other information processing apparatus with respect to the other information processing apparatus. Send a control signal instructing to display
The information processing apparatus according to claim 4. It further comprises manual input means for inputting an image according to a user input operation,
When an image is input by the manual input means,
The display device displays an image corresponding to the input by the manual input means;
The first switching means switches to the second mode;
The second switching means switches to display the corresponding image on a display device of the other information processing device, and the corresponding information displayed on the display device with respect to the other information processing device. Send a control signal instructing to display an image on the display device of the other information processing device
The information processing apparatus according to claim 1, wherein the information processing apparatus is an information processing apparatus. Further equipped with a touch tablet,
When a pen is input to the touch tablet,
The display device displays a pen input screen,
The first switching means switches to the second mode;
The second switching means switches to display the pen input screen on the display device of the other information processing apparatus, and the pen input displayed on the display device with respect to the other information processing apparatus. A control signal is transmitted to instruct the screen image to be displayed on the display device of the other information processing device.
The information processing apparatus according to claim 1, claim 2, claim 3, or claim 7. Further provided with operation keys operated by the user,
When the menu key of the operation keys is operated,
The display device displays a menu screen,
The first switching means switches to the second mode;
The second switching means switches so as to display the menu screen on the display device of the other information processing apparatus, and switches the menu screen displayed on the display device to the other information processing apparatus. Send a control signal instructing to display an image on the display device of the other information processing device
The information processing apparatus according to claim 1, claim 2, claim 3, or claim 7.

Images