High definition television system

Details High definition television system High definition television system

1989-12-05

1991-07-02

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 12, 358105, 358141, H04N 1102

Patent

active

050290002

ABSTRACT:
In a receiver for a high-definition television system a complicated motion compensated interpolation circuit for the chrominance can be dispensed with; in the event of small motions the interferences caused thereby are so small as to be disregarded, in the event of larger motions disturbing differences between the motion compensated luminance and the non-motion compensated chrominance can be prevented by switching to a processing operation which provides a lower spatial resolution for the chrominance. Herein, use is made of the fact that the eye is less sensitive to short-comings in (the resolution of) the chrominance signal than for short-comings in (the resolution of) the luminance signal. The render such a receiver possible, the television signal must be adequately processed at the transmitter end.

REFERENCES:
patent: 4670773 (1987-06-01), Silverberg
patent: 4864398 (1989-09-01), Avis
patent: 4873573 (1989-10-01), Thomas
patent: 4890160 (1989-12-01), Thomas
patent: 4931855 (1990-06-01), Salvadorini
"HDTV Motion Adaptive Bandwidth Reduction Using DATV"; by Storey, BBC Research Department Report, BBC RD 1986/5, 6/86, pp. 1-7.

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