Video disc apparatus recording time-expanded luminance signals a

Details Video disc apparatus recording time-expanded luminance signals a Video disc apparatus recording time-expanded luminance signals a

1989-09-27

1992-05-19

Envall, Jr., Roy N.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358310, 358 11, H04N 1102

Patent

active

051153238

ABSTRACT:
A wide bandwidth color video signal, such as a high definition television (HDTV) signal is recorded on a video disc by timebase expanding the luminance component and timebase compressing the color difference components to a bandwidth substantially equal to the bandwidth of the timebase expanded luminance component. The timebase expanded luminance component and the timebase compressed color difference components are time division multiplexed and separated into plural channels of multiplexed signals, each of which is recorded in a respective track on the video disc. Signals recorded in this format are recovered by reproducing the plural channels of multiplexed luminance and color difference components from respective tracks, demultiplexing the timebase expanded luminance component and the timebase compressed color difference components, timebase compressing the separated luminance component to return it to its conventional timebase, and timebase expanding the separated color difference components to return them to their conventional time base.

REFERENCES:
patent: 4567508 (1986-01-01), Hulyer
patent: 4605950 (1986-08-01), Goldberg et al.
Translation of Foreign patent 60208191.

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