Video signal processor with alternate subcarrier

H - Electricity – 04 – N

Patent

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350/44, 350/72

H04N 11/00 (2006.01) H04N 7/06 (2006.01) H04N 11/24 (2006.01)

Patent

CA 1297188

RCA 84,745 ABSTRACT OF THE DISCLOSURE Apparatus fox encoding a video signal includes means for generating a video signal containing information to be displayed during periodic horizontal line image intervals. The video signal comprises a luminance component including vertical image detail information occupying a first frequency band, a chrominance subcarrier component modulated with color image information occupying a second frequency band, and information representative of a given characteristic of an image to be displayed. Included is means for providing an alternate subcarrier signal with an interlaced frequency between first and second frequency bands. Also included is means for modulating the alternate subcarrier signal with the representative information to produce a modulated alternate subcarrier signal with a bandwidth in accordance with the representative information.

573060

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