Abstract: A camera includes: a zoom lens, having a first zoom mechanism, for photographing an image of an object; a focal length setting device which controls the zoom mechanism to set a focal length of the zoom lens; and a electronic monitoring device for visually displaying the object image. The electronic monitoring device displays the object image which corresponds to the focal length set by the focal length setting device at all times. The focal length setting device actuates the zoom mechanism to set the focal length of the zoom lens at a set focal length only at the time immediately before a photographing operation is carried out.

Abstract: A cradle for a digital camera comprises a connector to which a plurality different kinds of digital cameras can be selectively and detachably connected. The camera body of the digital camera is provided with a magnet located at a position which is changed in accordance with the kind of the digital camera, or provided with a magnet having a magnetic force the value of which corresponds to the kind of digital camera. The cradle has a magnetic sensor and a sensing circuit. The sensing circuit determines the kind of digital camera connected to the connector, by sensing the magnet. The magnet and the magnetic sensor may be replaced with a reflecting member and an optical sensor.

Abstract: A display control system for a camera, which is capable of forming an object image on a film and capturing electronic image of the object and generating image data of the captured image, controls a display device provided to the camera to display an object image and a superimposed image which correspond to the object image and an imprinted image on a photographing film such that a positional relationship of the object image and the superimposed image on the display device is substantially same as a positional relationship of the object image and the another image on the photographing film.

Abstract: A data erasure control system for a camera that is capable of forming images on a photographing film, and of capturing and storing image data including a plurality of frames in a memory is provided with: a judging system that judges whether a photographing operation with respect a photographing film has been completed; and a data erasure prohibiting system that prohibits the image data stored in the memory from being erased until the judging system judges that a photographing operation with respect a photographing film has been completed.

Abstract: A still-video camera has an image receiving unit (CCD) on which an image of an object to be recorded or an image of a data symbol is formed. The data symbol indicates information corresponding to a photography mode of the still-video camera. When the data symbol is read by the still-video camera, the photographing leses are moved to a position corresponding to macrophotography mode, and thus the photography mode indicated by the data symbol is read by the still-video camera. Then, the photographing lens system is moved to a position corresponding to the photography mode designated by the data symbol, so that photography is carried out in accordance with the photography mode.

Abstract: Disclosed is an accessory for a camera which is used separately from the camera. The camera transmits a signal for indicating an operational state thereof. The accessory includes a receiver for receiving the signal and a vibrator which vibrates in accordance with the signal received by the receiver. A transmitter-receiver system for the camera is also disclosed.

Abstract: A camera uses a photo-sensitive film as a recording medium. A light source is provided to selectively illuminate a photographing frame on which a latent image has been formed with light so that evenly distributed light is superimposed on the latent image to delete the latent image.

Abstract: A still-video camera has a white balance adjustment device. The white balance adjustment device includes a filter film which has a translucent opal filter portion and a transparent filter portion. The filter film is moved by a motor. During a white balance adjustment, the translucent opal filter portion is positioned in front of a first CCD, and in an image recording operation, the transparent filter portion is positioned in front of the first CCD. When the white balance adjustment is to be carried out, an output signal from a second CCD is transmitted to an AF control circuit, and thus an AF adjustment is also performed. The AF adjustment is carried out in such a manner that a spatial frequency of the output signal of the second CCD has a highest value.

Abstract: A data regenerating device includes a connecting device for connecting the data regenerating device to an external device. The data regeneration device regenerates data which has been stored in a predetermined recording medium arranged to be adapted to the data regenerating device in a predetermined manner via the external device. The data regenerating device comprises a judging component for judging whether the external device is able to receive the data to be regenerated and an inhibiting component for inhibiting a predetermined data processing for the data regenerating operation when it is judged by the judging component that the external device is not able to receive the data. Therefore, it becomes possible to prevent electrical power required for operating the data regenerating device from being undesirably spent and also prevent a regenerating head provided within the data regenerating device and the video floppy disk from being undesirably worn away.

Abstract: A white balance adjusting device has a white balance sensor for sensing a color temperature and an image-object distance sensing mechanism. The image-object distance sensing mechanism senses the image-object distance using a CCD by which the object image is sensed. The image frame is sub-divided into a plurality of sectors, and the image-object distance is sensed for each sensor. The white balance adjustment is performed by changing coefficients corresponding to the color temperature of the ambient daylight and the flash of light. For a sector in which the image-object distance is short, since the effect of the electronic flash is large, the coefficient corresponding to the color temperature of the flash of light is set to a high value. For a sector in which the image-object distance is long, since the effect of the electronic flash is small, the coefficient of the color temperature of the flash of light is set to a low value.

Abstract: A device and method for editing a signal recorded on a magnetic disk. An image signal recorded on a first track of the disk is stored in a first memory, and then the signal of the first track is erased. An image signal recorded on a second track of the disk is stored in a second memory, and then the signal of the second track is erased. The signal stored in the first memory is recorded on the second track, and then the signal stored in the second memory is recorded on the first track.

Abstract: A dropout compensation device includes a plurality of video signal storage devices, e.g., capacitors, for storing video signals to be displayed, a dropout detection circuit for detecting video signal dropout, and a circuit for interrupting the supply of video signals to the storage circuits whenever a dropout is detected, with the display continuing in accordance with what is already stored, e.g., from the previous line of video before the dropout was detected.

Abstract: A liquid crystal display device for receiving a video signal and displaying an image corresponding thereto having a liquid crystal display for displaying an image corresponding to a received video signal on a liquid crystal display, and a back light provided for irradiating light thereto. A switch is used for turning ON and OFF the back light. The back light is automatically turned OFF when a predetermined period of time passes in which the video signal, carrying image data in a predetermined condition, is not received.

Abstract: In an image processing apparatus employing a liquid crystal display, a light source is provided. The light emitted from the light source and external light are selectively utilized as the back light of the liquid crystal display. A driving circuit receives an image signal and outputs a drive signal, in accordance with the white balance of the light source. A white balance sensor is further provided in the image processing apparatus. When the external light is used as the back light, the drive signal to be supplied to the liquid crystal display is compensated so that the hue of the displayed image becomes optimum.

Abstract: A displaying device having a liquid crystal display, a light source, and an illuminating member. The displaying device is provided with at least two light receiving portions for respectively receiving external light and the light emitted by the light source. The illuminating surface of the illuminating member is arranged to face the back surface of the liquid crystal display for illuminating the liquid crystal display from behind. A casing for fixedly accommodating the liquid crystal display, the light source, and the light transmitting member therein is provided. The external light and the light emitted by the light source is selectively or simultaneously received by the illuminating member to illuminate the back surface of the liquid crystal display.

Abstract: A liquid crystal display device is provided for receiving a video signal and displaying a visual image. The display device employs an active matrix liquid crystal display member having a plurality of display elements, and a plurality of switching elements, respectively. An image signal included in the video signal is applied to the display elements in accordance with a horizontal synchronous signal. The signal corresponding to the synchronous signal included in the video signal to be applied to the switching elements is inhibited for a predetermined period of time so that the image is kept displayed by the display elements for a certain period of time without the need to supply another video signal.

Abstract: An automatic focusing device for a camera comprises a distance measuring mechanism for calculating the distance to an object by performing distance measurement a plurality of times and a focusing lens driving mechanism for moving a focusing lens to a position where it is focused on the object on the basis of the object distance calculated by the distance measuring mechanism. A field depth detecting device for detecting the depth of field of a photographing lens is provided. A device setting the number of times that distance measurement is performed by the distance measuring mechanism in accordance with the depth of field detected by the field depth detecting device is provided in such a manner that, if the depth of field detected is relatively great, the number of times that distance measurement is performed is set to a relatively small number, whereas, if the depth of field detected is relatively shallow, the number of times that distance measurement is performed is set to a relatively large number.

Abstract: An active AF camera comprises an active object distance measuring device including a first infrared emitter which emits first infrared radiation for measuring an object distance of an object to be photographed and a first infrared receiver which receives the infrared radiation reflected from the object. A remote control receiver is also provided which receives second infrared radiation emitted from a second infrared emitter of a remote control apparatus for remotely controlling the camera. The first infrared receiver and the remote control infrared receiver are made as a common infrared receiver.