Abstract: An image sensing device comprises an image sensor for photoelectrically converting an image sensing light coming from an object into an image sensing signal and for storing signal charges and providing a readout signal. Control circuitry variably sets storage times of the image sensor and an image composer composes an image signal for one picture from a plurality of readout signals from the image sensor having different charge storage times.

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 image sensing apparatus includes: a signal processing circuit for processing image sensing signals; a plurality of adjustment signal generating circuits for generating mutually different output signals for automatic adjustment by using part of the signals of the signal processing circuit; an interface for receiving the output of the plurality of adjustment signal generating circuits and outputting it through a common signal path.

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: A signal processing system comprises a signal processing device which includes a connector and a plurality of kinds of external storage devices which are arranged to store respective different kinds of information signals. In this system, the plurality of kinds of external storage devices are selectively connectable to the signal processing device through the connector, the information signal is transmissible to the signal processing device through the connector from the external storage device connected to the signal processing device, and the signal processing device further includes a detecting circuit which is arranged to detect via the connector the kind of the external storage device connected to the signal processing device. The system thus allows the external storage devices having information of varied kinds to be connected through one and the same connector. Therefore, information of diverse kinds can be formed and processed without necessitating any complex system arrangement.

Abstract: In order to achieve a digital video camera apparatus which decreases the number of components and facilitates connection with a digital VTR, a luminance signal Y and a color signal C input from external input terminals (110, 118) are converted into digital signals by A/D converters (136, 138) by sampling these signals respectively at the sampling frequency of a digital recording/reproduction device (113) and a frequency four times the subcarrier frequency, the digital signals are selected by selectors (135, 137) together with signals Y and C from a digital signal processing circuit (106), and the selected signals are supplied to the digital signal recording/reproduction device (113). Color-difference signals are supplied after their frequency is converted into the sampling frequency of the digital signal recording/reproduction device (113) by frequency converters (139a, 139b).

Abstract: In an image pickup device for generating a corrected luminance signal by subtracting two color difference signals as correction signals from a luminance signal, a correction signal is generated by base-clipping at least one of the two color difference signals.

Abstract: The disclosed image sensing apparatus includes a first circuit for forming a first signal to control gains of various color signals included in the outputs of an image sensing device in accordance with the levels of the various color signals, a second circuit for forming a second signal to control the gains of the various color signals in accordance with a color temperature of an object to be photographed, and a gain control circuit for controlling and determining the gains of the various color signals by mixing the first and second signals formed by the first and second circuits, in which a high accurate white balance adjustment is effected and the variation of the color temperature of the object is followed.

Abstract: This invention is related to a video signal color correction device. Color information signal inputs are received in rectangular form. A coordinates conversion means converts the inputs into polar coordinates using one of the inputs as a polar axis. The device has a correction data storing means in which are stored luminance signal correction data dependent on a luminance signal and the polar coordinates and color information signal correction data. The correction data storing means outputs the luminance signal correction data and the color information signal correction data in accordance with the luminance signal and the polar coordinates. A correction means corrects the luminance signal and the polar coordinates on the basis of the luminance signal correction data and the color information signal correction data output from the correction data storing means.

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: In an image pickup apparatus having a low-pass filter for detecting a luminance component of an image pickup signal and a band-pass filter for detecting a contour component of the image pickup signal, a digital system for performing a digital signal processing action is arranged to have the low-pass filter and the band-pass filter not cascade-connected to each other. The arrangement is such that the signal processing action is performed without bringing about any spurious contour, any deterioration in frequency characteristic, etc., due to place cancelling peculiar to a digital system. The apparatus reduces the possibility of deterioration of images, permits simplification of circuit arrangement, permits reduction in electric energy consumption and in scale of the circuit, and thus facilitates adoption of an integrated circuit arrangement.

Abstract: A gamma correction circuit includes a plurality of gamma function forming circuits, each of which modifies an input signal to provide different gamma correction signals. The input signal level is compared with a predetermined signal level, and based on the comparison one of the different gamma correction signals is selected as an output signal of the gamma correction circuit.

Abstract: An image sensing apparatus having a small amount of circuitry and exhibiting little power consumption is characterized in that a required delay line is connected into the circuitry at a point after a gamma-corrector in a digital signal processing system that processes an intensity signal, and another required delay line is connected into the circuitry at a point after a limiter in a corrective-signal generating system, which is for generating a signal that corrects a color signal. As a result, the delay lines are provided in fewer stages and need only have a small bit width. This makes it possible to reduce the amount of circuitry as well as power consumption.

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.

Abstract: An image signal processing apparatus inputs a video signal, delays it by one field using a field memory, multiplies the delayed signal by a value K (K less than 1), adds the output from the multiplication to the input signal and supplies the sum to the field memory. The level of the signal read out from the field memory is compared with a predetermined value, and based on the result of that comparison, the video signal being input is substantially inhibited from being supplied to the adding means. The signal obtained by multiplying the immediately-preceding field signal by k, and the present-field signal, are cyclically added, so that the amplitude can be gradually increased. The comparison inhibits addition of a new field signal when the level of that stored in the field memory has reached a predetermined level.

Abstract: A delay apparatus comprises one or a plurality of shift registers, a plurality of signal accumulating capacitors which are mutually coupled by transfer transistors, a plurality of write switches each of which is arranged between an input terminal and either one of the capacitors and which are controlled by outputs of the shift registers, and a plurality of read switches which are arranged between the plurality of capacitors and an output terminal and are controlled by the outputs of the shift registers, wherein the signal charges accumulated in the one capacitor are capacitively divided into other capacitors through the transfer transistors for transferring the signal charges.

Abstract: In a color image sensing system, a solid state image sensor has every four adjacent picture elements thereof grouped as one set, and combinations of color filters are arranged to cover almost all the picture elements of the image sensor. The color filters include first color filters which are arranged to pass a given color component for an obliquely adjacent pair of picture elements within each of the sets, and second and third color filters which are arranged to cover the other obliquely adjacent pair of picture elements within the same set.

Abstract: A camera apparatus has an image sensing part arranged to successively output for every field or frame a first image signal obtained for a predetermined exposure period of time and a second image signal obtained for a very short exposure period of time, a noise extracting circuit arranged to extract a fixed pattern noise from the second image signal, and a subtraction circuit arranged to subtract, under a predetermined weighting condition, the fixed pattern noise extracted by the noise extracting circuit first image signal.

Abstract: A video signal correction device is arranged to form a correction signal corresponding to an input video signal, to add the correction signal to the input video signal for correcting the video signal, and, in adding the correction signal to the video signal, to vary the level of the correction signal according to the level of the input video signal. This arrangement enables the device to correct the video signal always in an optimum manner for improved reproducibility of the video signal.

Abstract: A color temperature detecting device includes a color component detecting element for detecting electric charges for color components excited by incident light and accumulated with the lapse of time to produce color component signals, a comparison circuit for comparing the color component signals with respective given reference signals to produce discharge time length signals which correspond to the respective accumulated Amounts of the electfie charges, and an output part for obtaining a ratio between the color components on the basis of the discharge time length signals produced from the comparison circuit to produce a signal according to the ratio as color temperature information.