Rca Inc.

Roland N Rhodes

Warren H Moles

Robert A Dischert

James M Walter

Alfred C Schroeder

A video signal is serially enclosed for transmission in PCM form during synchronizing level intervals and encoded in a run length limited NRZ form during non-synchronizing level intervals, each PCM word being selected from minimum and maximum disallowed states of the NRZ code. In a decoder, a first detector responds only to the presence of the PCM code for synchronizing a second detector with response to both the NRZ and PCM coded portions of the encoded video signal to provide a decoded video output signal whereby the PCM portion of the signal conveys both decoder timing information and information as to a specific level of the video signal.

Digital video transmission system

A color encoding filter for use with a discrete photosensor pickup device has vertical stripes. The stripes occur in repeating cycles of color order, with the ratio of the width of a cycle to the width of a photosensor being a non-integer. This results in wider bandwidth in a luminance signal. The resulting pickup device output signal comprises a double sideband suppressed carrier signal having subcarriers conveying the chroma information. Both subcarriers can be demodulated, however demodulating only the upper sideband reduces biasing.

Color filter having vertical color stripes with a nonintegral

A filter for use with a CCD imager has vertical color stripes that have a non-integral relationship to the CCD sensors. A means for controlling the amount of a particular color that falls on a particular photosensor suppresses undesired signals.

Color encoding filter

A color filter for a single image pickup device camera features using color filter elements that have one dimension that is less than the corresponding dimension of photosensors in pickup device. This results in a wider bandwidth signal.

Color filter

A checkerboard filter for a single tube camera has rows that have alternately varying heights. This provides alignment tolerance with respect to a CCD imager to reduce color shift and flicker problems.

Checkerboard color filter providing tolerance

A color encoding filter for use with a discrete photosensor pickup device has vertical stripes. The stripes occur in repeating cycles of color order, with the ratio of the width of a cycle to the width of a photosensor being a non-integer. This results in wider bandwidth in a luminance signal.

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Belle Mead, NJ, United States of America

Roland N Rhodes