Abstract: Horizontal and vertical registration errors in a color television camera are automatically corrected on-air by detecting registration errors in live scenes, associating each error with a preselected region of the raster in which it was detected, separately accumulating errors for each region, periodically analyzing the distribution, magnitudes and signs of the accumulated errors, and the past history of registration errors to determine the type of registration error present, and generating a correction signal to correct the registration error. Vertical registration is effected using vertical video signals derived by sampling the component color video signals from the camera along vertical lines of the raster. A microprocessor-controlled automatic registration system is disclosed.

Abstract: The disclosed solid-state color image sensing device has a color mosaic filter adapted to correspond to each of the picture elements of a solid-state image sensing element and is arranged to obtain a color signal from a difference signal corresponding to a difference between the direct output signal of the solid-state image sensing element and another output signal obtained through one preceding horizontal scanning period. The device provides a signal producing circuit which produces an inversion control signal arranged to control the periodic inversion of the difference signal determined by the color arrangement of the color mosaic filter and an inversion processing circuit which uniformalizes the polarity of a predetermined color signal in response to the inversion control signal. The above stated color signal is obtained from the low frequency zone component of the output signal of the inversion processing circuit.

Abstract: A sampled data filter for separating chrominance signal from digitized composite video sampled at a 4f.sub.sc rate produces filtered sampled data chrominance signal at one half the input sample rate. The input video signal occurring as a 4f.sub.sc +I, +Q, -I, -Q sample sequence is decimated in the filter so that only the filtered replicas of the +I and +Q samples are computed. This effectively doubles the computational time permitted the filter circuitry without substantially compromising signal content.

Abstract: In the disclosed camera a switch-over arrangement changes its photographic mode between a tungsten-light mode and a day-light mode, and, when a flash unit is used, a setting arrangement sets the camera in the day-light mode in response to completion of the preparation for flash emission of the flash unit.

Abstract: A system for automatically setting up a color television camera. Register error is detected by correlating the times of occurrence of level transitions in two video signals. A unipolar pulse is provided in response to a level transition in one of the video signals, and a pulse having a positive and a negative lobe is provided in response to a level transition in the other of the video signals. The two pulse signals are multiplied. The product of the two pulse signals is integrated to produce a signal whose amplitude and polarity varies with register error. A microprocessor control system detects size and centering errors by measuring register error at different spots on the raster. Before correcting setup errors, the microprocessor verifies that there are adequate level transitions in the imaged scene by methodically adjusting the setup controls over a range of values and noting whether the measured register or size errors change accordingly.

Abstract: In a video signal recording and reproducing system, the recording system comprises a first converting circuit for sampling an analog composite video signal which is to be recorded with a first sampling frequency to convert the analog composite video signal into a digital signal, and a first memory circuit for storing an output digital signal of the first converting circuit to read out the output digital signal as a digital video signal sampled with a second sampling frequency, where the digital video signal corresponds only to a video signal in a video signal period excluding a synchronizing signal period of the analog composite video signal. The digital video signal thus read out is recorded and reproduced.

Abstract: A method and apparatus for developing a compressed bandwidth frequency modulation signal format to increase the playing time per side of a videodisc by compressing the signal bandwidth of the recorded information preferably by a factor of two. Method and apparatus are described and shown for modulating a carrier signal with a color video signal, modulating a subcarrier frequency with at least one audio frequency signal, selecting the carrier and subcarrier frequencies such that the upper frequency deviation limit of the frequency modulated carrier signal is lower than the useful upper frequency limit of the recording medium chosen for the disc, and such that there is no overlap of the chroma baseband signal and the second order chroma sideband. At least one audio subcarrier frequency is located between the first order chroma sideband and the chroma baseband signal, or between the chroma baseband signal and the second order chroma sideband, or between the second order chroma sideband and DC.

Abstract: A video format signal recording and reproduction system includes means for providing audio voice-over or narration during a still video segment. A portion of the video image corresponding to around 20 horizontal lines is used to insert and record the audio data, while a color level generator operates to fill predetermined color in the 20 or so lines on the face of the CRT.

Abstract: Apparatus for combining video signals from a video source, such as a video disc player, with computer-generated graphics/text output on a single display, for overlaying the two. The computer-generated video is provided in RGB format; the other video is converted to RGB format if not already in that form and the two sets of RGB signals are provided to a switch. The switch (i.e., multiplexer) selects which one of the two RGB signal sets to display; this selection is made separately for each pixel. In one embodiment, the color of the computer-generated signals controls the switch's selection of source. A master-slave synchronization system maintains registration between the two sets of RGB signals. When the video source is unstable (as, for example, with a video disc player), a master sync generator provides a house (coarse) synchronization signal to the video disc player.

Abstract: A synchronizing circuit especially suitable for a matrix television set using a flat display, such as comprised of liquid crystals, light emitting diodes or electro-luminescent elements in place of a cathode ray tube, is provided. Signals necessary for horizontal and vertical scannings, or the like, are obtained by dividing the signal from an oscillator circuit. The frequency of the oscillator circuit does not equal that of the horizontal scanning signal, that is, in the order of 16 KHz. Phase comparison is performed on a horizontal synchronizing signal and a scanning signal, which is obtained by dividing the signal from the oscillator circuit, to apply negative feedback to the oscillator circuit whereby synchronization is performed. The oscillator is voltage controlled. The circuit is fabricated in a substantially integrated construction using few external parts.

Abstract: An interface for subscription television reception which restores the program selection function to the tuner of the television receiver. This is of particular importance to subscribers using remote control receivers. Subscription television signals are split into two substantially identical components, one of which is fed to the tuner of the television receiver and the other of which is passed through a band reject filter to an adder. The intermediate frequency output of the tuner is converted to a predetermined carrier frequency in the television broadcast band and, as so converted, fed to the other input of the adder. The output of the adder is, in turn, fed to a conventional subscription television converter/decoder, which is set to select the program on the predetermined carrier frequency and decode the same. The converter/decoder output is converted to the intermediate frequency carrier for amplification and further processing in the intermediate frequency circuitry of the television receiver.

Abstract: A printing plate is made in accordance with a particular method and is used in a printing process wherein it is effective to produce a substantially continuous tone printing effect. A negative screen having an overall pattern defined by rows of closely spaced substantially square-shaped areas is exposed a plurality of times on an image carrier. An image screen pattern is developed on the image carrier wherein each of the plurality of exposures of the overall pattern on the negative screen is effected at a different angle with respect to each other. A unique printing screen pattern is obtained which is then used for printing a reproduced image.

Abstract: A film video player for sensing a color negative film image to produce color positive video signals includes a single frame charge coupled device (CCD) image sensor having an integral color filter array for producing color negative video signals when illuminated with a negative color image. The single frame CCD image sensor is flash illuminated with an image from the color negative film during the vertical retrace intervals of the video signals. Signal processing circuitry inverts and color corrects the signals produced by the sensor to produce color positive video signals. To reduce readout clock frequencies, the single frame image sensor is provided with a pair of parallel output registers. Even numbered columns of the array are read out via one of the registers, and odd numbered columns the other. Odd numbered columns are overlayed with green filter stripes and even numbered columns are overlayed with alternate red and blue stripes.

Abstract: In a video recording system the chroma components of a color television signal are applied to a multiplexer where they are interleaved in frequency with each other so that the energy concentration of each chroma component occurs at frequencies interleaved with the frequencies at which the energy concentration of the other chroma component occurs. The interleaved chroma components and the luminance component are supplied respectively to frequency modulators each producing an output having energies distributed over the full range of the passband of the system. The outputs of the modulators are fed to first and second transducers for recording the luminance and chroma components on adjacent tracks of a recording medium.

Abstract: A digital color camera is disclosed, which includes a circuit for generating first, second and third digital color signals, each at a rate of 4f.sub.sc (where f.sub.sc represents a color subcarrier frequency) from the outputs of first, second and third imagers. A circuit forms a digital luminance signal from the first, second and third digital color signals, and a circuit forms a dot-sequential color difference signal with the first and second digital color difference signals appearing alternately every 1/4f.sub. sc from the first, second and third digital color difference signals and a circuit passes a dot-sequential digital color difference signal through a digital filter so as to limit the band widths of the first and second digital color difference signals and the overall circuit provides improved color TV signals which are formed with simpler circuit means.

Abstract: The invention is directed to an apparatus for removing jitter from a recorded color television signal wherein the reproduced chrominance signal is converted to allow frequency chrominance signal and then converted into a high frequency chrominance signal in response to a reference signal containing the same jitter as the subcarrier of the first. The luminance signal is demodulated and mixed with the high frequency chroma signal. The chroma subcarrier, containing the jitter is separated from the mixed signal and used for time base correction as the reference signal.

Abstract: A color image reproducing apparatus having particular utility as a color view finder for a color image pick-up apparatus includes a black and white cathode ray tube for producing a black and white image in response to red, green and blue primary color control signals sequentially supplied thereto; a color filter including red, green and blue horizontal color filter stripes adapted to transmit light of a red, green and blue color, respectively, and arranged vertically in the order of green, blue, red, green, red, blue and green stripes; and electronic shutter for sequentially permitting the transmission of light from the black and white image through the red, green and blue color filter stripes, corresponding to the supply of the red, green and blue primary color control signals to the cathode ray tube, to form a composite color image at a predetermined position; and an objective lens for projecting the black and white image transmitted through the electronic shutter and the color filter stripes to the predete

Abstract: In a television image receiver provided with a vertical synchronizing circuit of a count-down system, a down counter to be reset in the an even number of pulse section among the pulses to be partitioned off by the undercuts in the vertical synchronizing signal during the synchronizing operation through the count inputs of the horizontal synchronizing pulses, and a decoder for selectively guiding the output of a plurality of flip-flop circuits constituting the down counter to generate given line selection pulses are provided in said vertical synchronizing circuit to provide a line selector at lower cost and free from error actions even at the weak electric field, etc.

Abstract: A magnetic recording and reproducing apparatus comprises a recording and reproducing circuit for recording and reproducing a video signal, an audio signal, and a control signal, so that a region exists on a magnetic tape wherein the video signal, the audio signal, and the control signal are all recorded.

Abstract: An underwater color television camera system for use in high pressure or dense shielding applications. The system includes a spread tube color television camera encased in a three-segment housing designed to provide quick access to and interchangeability of camera parts, while also providing protection to the camera from water pressure at depths of over 2500 feet below water surface. A television viewfinder is affixed to the camera housing for use during manual operation by divers. A control center which includes computer devices is remotely connected by coaxial or triaxial cable to the camera so as to permit surface control and monitoring of numerous camera operations. Camera operations and applications are capable of enhancement by use of computer generated graphics, computer navigation assistance, and computer aided visual communication with divers.