Abstract: In a video camera apparatus having a camera main-body unit and a lens unit detachably mounted on the camera main-body unit, a state of the lens unit attached to or detached from the camera main-body unit is determined. If the lens unit is not accurately attached to the camera main-body unit, a power supply is controlled and various driving units in the lens unit are disabled or set in a state of low power consumption. At the same time, picture recording is prohibited on the camera main-body unit side, and a nonmounting state of the lens is displayed.

Abstract: In an interchangeable-lens type camera to which a lens unit is removably secured, information relative to the amount of variation per unit time of the focal length of the magnification varying lens of the lens unit is transmitted from the lens unit to a camera-body side, and zoom control is performed on the camera-body side on the basis of such information.

Abstract: In an interchangeable lens type camera system composed of an interchangeable lens unit and a camera body and having an optical zooming process and an electronic zooming process, information about inhibition or permission of the electronic zooming process is transmitted from the lens unit to the camera body, and information about the stoppage or moving direction of a zoom lens is transmitted from the camera body to the lens unit, so that a switching between the optical zooming process and the electronic zooming process is smoothly carried out.

Abstract: An image processing apparatus provided with an electronic zooming device for electronically enlarging the image around a selected position in the image area, and a display control circuit for displaying an area to be enlarged, in the image area, prior to the image enlargement in the electronic zooming operation.

Abstract: In a video camera apparatus having a camera main-body unit and a lens unit detachably mounted on the camera main-body unit, a state of the lens unit attached to or detached from the camera main-body unit is determined. If the lens unit is not accurately attached to the camera main-body unit, display of the picked up image is prohibited on the camera main-body unit side, and a nonmounting state of the lens is displayed by switching to a predetermined video signal pattern.

Abstract: A system comprising a recording apparatus including an audio input portion and a recording portion capable of recording an audio signal from the audio input portion on a recording medium, and an audio memory unit detachably attached to the recording apparatus, wherein the memory unit includes a memory capable of storing the audio signal from the audio input portion, and the recording apparatus is arranged to record also the audio signal read out from the memory on the recording medium by the recording portion, thereby making it possible to record a wide variety of audio signals of different kinds on the recording medium in desired timing. Also, this memory unit is utilized to make it possible that in application to the apparatus for recording video signals and audio signals in superimposed relation, the video signal is rewritten only in itself.

Abstract: A display device is arranged to cause a display part to display, on an image plane, an index for selecting a part of the image plane which is arranged to display an image thereon, to cause a moving part to move the index in a predetermined direction on the image plane, and to cause a control part to control the direction of movement of the index in such a manner that the direction of movement is changed according to an aspect ratio of the image plane of the display part, whereby a high-quality display can be provided irrespective of the aspect ratio.

Abstract: A video camera having a plurality of photographing modes each having different control characteristics in accordance with the photographing condition, comprising:mode selection means for selecting arbitrary photographing mode from said plurality of photographing modes; andcontrol means for transferring said photographing mode via a neutral mode having control characteristics intermediate to control characteristics of each photographing mode when the photographing mode is switched by said mode selection means,whereby abrupt change in the characteristics of control parameters or set values is avoided, and any disorder or unnatural change in the image or unstable transient control state caused by the switching can be prevented, so that the optimal photographing can be performed without respect to photographing situation or photographing environment, when the photographing mode is switched.

Abstract: An image pickup device capable of exposure control utilizing the iris aperture, shutter speed and gain as three control parameters, comprising means for setting a photometry area in the image frame; means for setting an input parameter as a reference for evaluation, based on the luminance information in an image signal obtained from the photometry means; means for determining the values of the three control parameters for exposure control, according to the value of the input parameter; switch means for switching, according to the phototaking mode, a program setting the control caharacteristics of each control parameter as a function of the input parameter; and photometry area switch means for switching the set state of the photometry area in the image frame, in linkage with the switching operation of the switch means, wherein the phototaking mode is switched according to the phototaking conditions, thereby controlling the parameters and the light metering area according to a program matching the phototaking m

Abstract: A recording apparatus for recording an information signal on a recording medium is arranged to be controlled according to control information read out from an external storage device which is attachable and detachable to and from the recording apparatus, so that the apparatus is not only simply operable but also has diverse functions. One of the features of the apparatus lies in that the timing of start or stop of recording can be synchronized with that of a signal combining action or a signal fade-in or fade-out action.

Abstract: An apparatus for driving a solid-state image sensor includes a sensor portion for performing a photoelectric conversion, a vertical transfer register for reading information from the sensor portion, a memory for storing information from the vertical transfer register, and an eliminating unit for eliminating information from the sensor portion, wherein the information in the sensor portion is eliminated by the eliminating unit intermittently two or more times in one field interval, whereby information storage time is controlled. In one field interval, operation of the eliminating unit is performed successively every time T.sub.2 after time T.sub.1 from a vertical synchronizing signal, the information from the sensor portion is read in the vertical shift register successively, at every operation of the eliminating unit, a time T.sub.3 after the end of this operation, and the first time T.sub.1, second time T.sub.2 and third time T.sub.

Abstract: In an image pickup device capable of effecting the exposure control with plural control parameters such as the iris aperture, shutter speed and gain, the set range of the control parameters is divided into plural areas according to the phototaking condition, and the exposure control information is operated by varying one of the plural control parameters while fixing other control parameters in each of the plural divided areas. Thus optimum exposure control is rendered always possible according to the phototaking situation or condition. Also since the variable parameter is selected according to the phototaking situation, the magnitude of calculation required in the control circuit does not increase in each situation, and compact and rapid control can be realized.

Abstract: An apparatus for driving a solid-state image sensor includes a sensor portion for performing a photoelectric conversion, a vertical transfer register for reading information from the sensor portion, a memory for storing information from the vertical transfer register, and an eliminating unit for eliminating information from the sensor portion, wherein the information in the sensor portion is eliminated by the eliminating unit intermittently two or more times in one field interval, whereby information storage time is controlled. In one field interval, operation of the eliminating unit is performed successively every time T.sub.2 after time T.sub.1 from a vertical synchronizing signal, the information from the sensor portion is read in the vertical shift register successively, at every operation of the eliminating unit, a time T.sub.3 after the end of this operation, and the first time T.sub.1, second time T.sub.2 and third time T.sub.

Abstract: An imaging apparatus makes it possible to precisely focus on an object to be photographed in each photographic mode by controlling the focusing of the object in accordance with the photographic mode.

Abstract: In a video camera apparatus having a camera main-body unit and a lens unit detachably mounted on the camera main-body unit, a state of the lens unit attached to or detached from the camera main-body unit is determined. If the lens unit is not accurately attached to the camera main-body unit, a power supply is controlled and various driving units in the lens unit are disabled or set in a state of low power consumption. At the same time, picture recording is prohibited on the camera main-body unit side, and a nonmounting state of the lens is displayed.

Abstract: An apparatus for driving a solid-state image sensor includes a sensor portion for performing a photoelectric conversion, a vertical transfer register for reading information from the sensor portion, a memory for storing information from the vertical transfer register, and an eliminating unit for eliminating information from the sensor portion, wherein the information in the sensor portion is eliminated by the eliminating unit intermittently two or more times in one field interval, whereby information storage time is controlled. In one field interval, operation of the eliminating unit is performed successively every time T.sub.2 after time T.sub.1 from a vertical synchronizing signal, the information from the sensor portion is read in the vertical shift register successively, at every operation of the eliminating unit, a time T.sub.3 after the end of this operation, and the first time T.sub.1, second time T.sub.2 and third time T.sub.

Abstract: An automatic white balance adjusting device in which white balance adjustment is performed by feedback controlling gains for color signals obtained from an image pickup element, comprising a first computing circuit for computing the color signals, a circuit for producing control signals for controlling the gains of the color signals on the basis of a signal output from the first computing circuit, a second computing circuit for computing the color signals in a different operation from that of the first computing circuit, and a circuit for correcting the control signals on the basis of a signal output from the second computing circuit.

Abstract: In a system for reading out an information signal stored in a memory and recording it on a recording medium, renewal of the address of the memory is performed in synchronism with the recording operation, thereby making it possible to record the information signal on the recording medium continuously despite intermittent performance of recording. The address of the memory is returned by a predetermined amount in synchronism with renewal of the address of the memory or the recording operation. Thereby it is also possible to assure good continuity of the recorded information signals. Further, the above-described processing is made easier by making the address of the memory controllable in units of track on the recording medium.

Abstract: An image sensing apparatus including an image sensing device for receiving a light signal, performing a photoelectric conversion, and generating image information. The device also includes a first type semiconductor substrate, and a second type semiconductor layer formed on the first type semiconductor substrate. In addition, there is provided a light receiving portion formed on the second type semiconductor layer. This portion receives a light signal, performs a photoelectric conversion, and generates image information. Moreover, there is control circuitry for controlling the image sensing device such that image information is output repeatedly once each reading period nT (where n is an integer equal to or greater than two and T is a field period of a standard television signal). Information corresponding to a partial interval T1 within the reading period nT is carried to the first type semiconductor substrate. There is also provided altering circuitry for altering the length of the partial interval T1.

Abstract: A color temperature information forming device has converting means of a plurality of kinds arranged to obtain chrominance signals of a plurality of different kinds by photoelectric converting rays of light of different wave length zones included in an incident light and to accumultate and produce the plurality of chrominance signals. The device detects the level of at least one kind of the chrominance signal among the chrominance signals of the plurality of kinds produced from the plurality of converting means and forms color component information according to the detected level.