Abstract: A programmable image processor compares successive vertical frames of the received video image of an object placed within a television camera field of view with a similar object video image stored in memory, and provides a signal manifestation of the video mismatches therebetween. The programmable image processor provides for the scanning of the received video image by the stored video image in one, or both, of two orthogonal directions within the camera field of view, to distinguish between video mismatches resulting from dissimilarities in the video images and mismatches resulting from the misalignment of the object in one, or both of the orthogonal directions within the camera field of view.

Abstract: An information processing method and apparatus, which is adapted to use, for example, in the recording of color image information, calls for sampling a set of basic colors (e.g., green, red, and blue) at rates which are proportioned according to the resolving power of the human visual system respective of color, and arranging the resulting samples to produce a sequential video signal. In one implementation, green, red, and blue color image information is sampled at respective rates decreasing progressively from green to red to blue in producing a sequential signal which is recorded, and on playback a luminance signal for, say, a television display is derived from the sequential signal based only on the relatively high frequency (preferably both green and red but not blue) sample information. Moreover, to improve image registration with such customized sampling, delays are selectively interposed in the individual color signals in accordance with their respective sampling frequencies.

Abstract: The overall response of a television receiver is displayed on the face of the cathode ray tube of the receiver involved by test apparatus which requires electrical connection only to the antenna terminals of the television receiver and the mounting of a small light sensor unit onto the face of the cathode ray tube. The test apparatus generates an amplitude modulated signal having a video carrier frequency corresponding to that of a selected television channel. The amplitude modulated video carrier frequency signal includes an envelope containing synchronizing pulses for operating the sweep circuits of the television receiver in a normal manner and which clamps the automatic gain control circuits of the receiver to a desired level and a video signal to produce a given brightness reference background on the tube face which is preferably gray or black. Periodically, the main video carrier is interrupted for the generation of a constant amplitude test carrier frequency signal.

Abstract: In a television signal processing system, broadband means responsive to television video signals are provided to derive a relatively broadband signal including signal components in a frequency range between zero Hertz and a frequency f. Narrowband means also responsive to the television video signals are provided to derive a relatively narrowband signal having a peak amplitude response at a frequency between zero Hertz and approximately f and a relatively lower response at frequencies of zero Hertz and approximately f. Thresholding means responsive to the narrowband signal are provided to inhibit translation of signal portions of the narrowband signal above a predetermined threshold. The amplitude inhibited narrowband signal is combined with the broadband signal to provide an output signal having relatively accentuated high frequency components and relatively suppressed noise components.

Abstract: In a television receiver, an automatic peaking control circuit is responsive to an automatic gain control signal to lower the peak frequency response of the video amplifier when the received television signal is so weak that much of its high frequency content is noise.

Abstract: The smearing of moving images due to photoconductive and capacitive lags inherent to the photoelectric conversion target of a television camera can be removed by reducing the scan area of the target so that the electron beam traverses the target at a lower speed than the speed at which the corresponding portion of the image is traversed by the beam when the entire area of the target is scanned.

Abstract: A target for ultrasonic camera comprising, applied to a substrate, a pyroelectric retina covered, in the present example, with a layer which absorbs incident ultrasonic waves; the temperature rise due to said absorption produces in the retina a charge relief read out by means which depend upon the selected device, for example an electron beam as in the case of the known pyroelectric targets.

Abstract: A power supply which produces a pulsating direct current potential from a first source of alternating current potential and provides a direct current potential to a means for developing a viewable display on a kinescope utilizes a filter network which includes a first inductor. The first inductor provides for a relatively constant level of direct current potential to the means for developing a viewable display with a predetermined range of direct current being supplied to the means for developing a viewable display and a relatively constant level of pulsating direct current potential. A second inductor magnetically coupled to the first inductor and the means for developing a viewable display provides a second alternating current potential greater than a predetermined level to the means for developing a viewable display.

Abstract: A means of eliminating signal suppression in an A-C coupled video process system by an automatic low frequency gain limiting circuit means. The low frequency gain limiting circuit means comprises a summing amplifier that simultaneously sums the original video pulses and inverted pulses of the low frequency pedestal portion of the video pulses with the detail information removed therefrom. The resulting gain limited output video voltage from the summing amplifier is confined within the linear dynamic range of the video processing system and comprises a compressed pedestal height that nevertheless has all the detail information thereon. The gain limited output video voltage is applied to a display driver.

Abstract: Correction of the influence of noise on the output voltage of a detection circuit for automatic frequency control by using a product demodulator with a filter having a pole at the picture intermediate frequency and a zero crossing at a frequency between a sound intermediate frequency and the picture intermediate frequency.

Abstract: A color television system for the combined transmission of a luminance signal and a chrominance signal. The chrominance signal is added to a carrier as a frequency modulation, after which the modulated carrier is amplitude-modulated by the luminance signal. The system is extremely suited for use with a disc-shaped record carrier. The color television signal is then recorded as a trackwidth variation of a spiral track provided on the record carrier.

Abstract: An automatic chrominance gain control circuit for a color television receiver distinguishes between lower frequency chrominance variations (large color objects) and higher frequency chrominance variations (small objects) to minimize gain control for large color objects and to emphasize gain control for highly saturated contrasting colors in small objects across the picture field.

Abstract: Beam-index line-screen television display systems are disclosed for generating multi-color images throughout the size range from small direct view cathode ray tubes to projection type wall screen configurations. The image in the small screen display is generated by a scanning electron beam whereas the image generated in the large screen configuration is developed bY a scanning optical beam. In both cases the excitation of the image producing target screen is synchronized by beam-indexing features which utilize optical index signals transmitted across the target screen.

Abstract: A silicon monolithic integrated circuit comprising a DC biasing network and three sets of full wave, synchronous, gated, transistor demodulators to demodulate the red, blue and green color different signals which are present in a composite television signal. The DC biasing network includes; a voltage regulator for providing a direct current voltage independent of variations in the magnitude of a power supply voltage the variations may be caused by voltage transients or varients in the temperature of the monolithic chip, and a direct current bias amplifier connected to the voltage regulator for providing a zero differential temperature coefficient direct current bias voltage to the outputs of the three sets of demodulators. Also disclosed is a blanking amplifier to facilitate direct current restoring at each of the outputs of the demodulators, the blanking amplifier being responsive to a blanking input signal.

Abstract: In a record carrier for the storage of a television signal in an optically readable track-shaped structure, the information is contained in the frequency and/or amplitude of an undulation of the tracks of constant trackwidth. Via a phase-reading mechanism an electric signal can be obtained which is substantially linear with the television signal to be written. When transferring a television signal via such a record carrier the electric signals need not be limited abruptly. As a result, no higher harmonics occur, and substantially no mixing products occur in the frequency band of the luminance information and in the frequency band(s) of other information, for example chrominance and sound information.

Abstract: A record carrier is described in which a television signal is stored in an optically readable information structure of trackwise arranged areas alternating with intermediate areas. The tracks exhibit an undulation. The luminance information is contained in the spatial frequency of the areas and the other information, for example chrominance and sound information, in the variation of the undulation. The luminance information and the other information can be read independently by means of a suitable detector arrangement.

Abstract: An apparatus for exposing a light-sensitive layer employed for the manufacture of reproductions of black-and-white or colored patterns, wherein the image of the pattern which has been projected onto a support is taken or scanned by means of an electronic camera and stored on a recording carrier. The light-sensitive layer initially is purely optically exposed with the image of the pattern. The light-sensitive layer is also additionally exposed with the stored image for correction of contrast and/or color shade.

Abstract: A video signal processing system for reproducing a colorplexed composite video signal obtained by colorplexing a frequency shifted chrominance signal shifted to a lower frequency band and a luminance signal by using frequency interlacement, the composite video signal being recorded in the form of an angular modulation signal on a recording medium, and converting the reproduced signal into a standard color television signal. In this system, the chrominance signal band component is extracted from the reproduced composite video signal, and the extracted signal is frequency converted into a signal in the frequency band of the chrominance signal in the standard color television signal. The frequency converted signal is then coupled to a comb filter to separate the chrominance signal. The chrominance signal thus obtained is combined with a signal obtained by removing the chrominance signal component from the reproduced composite video signal, thereby recovering the standard color television signal.

Abstract: In a color television receiver, first and second amplifiers are respectively included in the luminance and chrominance channels to permit control of contrast and saturation. The amplifiers have gain versus control voltage characteristics including linear portions extrapolated to cut off at predetermined voltages which may or may not be the same. A first potentiometer is coupled between a source of fixed voltage equal to the extrapolated cut off voltage of the first amplifier and a gain controlling voltage source. The gain controlling voltage may be produced by a circuit including an element responsive to ambient light. The wiper of the first potentiometer is coupled to the first amplifier to couple a voltage developed at a predetermined point of the first potentiometer to the first amplifier to control its gain.

Abstract: Poor transmission characteristics generally produce hue errors at low luminance levels. This comes about because of differential gain and phase effects in the transmission path between the modulator of the transmitter and the demodulator of the receiver. The hue control may be set such that high luminance flesh colors will be acceptably correct, but the dark areas often are incorrect with objectionable green tinges being present, especially in close-ups of dark skin, hair and shadow areas. This problem is overcome by automatically increasing the demodulation angle at low luminance levels. A signal that varies in accordance with the luminance level automatically adjusts a phase shift network to effect a phase shift of the chrominance signal relative to the reference signal or vice versa prior to these signals being applied to the chroma demodulators.