High definition television arrangement employing motion compensa

Details High definition television arrangement employing motion compensa High definition television arrangement employing motion compensa

1990-03-19

1991-08-27

Shepperd, John W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358136, 358141, H04N 700, H04N 712

Patent

active

050438085

ABSTRACT:
A high definition television system that is characterized by low transmission bandwidth is achieved by in a manner removing much of the redundancies in the signal, efficiently encoding the remaining signals, and transmitting the encoded signal in a manner that is most compatible with the applicable standards. Specifically, the television signal is encoded by developing motion vectors that describe the best motion estimate of the image to be transmitted, by developing motion estimation error signals, by encoding these error signals within the same bandwidth as occupied by standard NTSC signals and by transmitting the encoded error signals during periods that correspond to the active scan intervals of the NTSC TV signal. The motion vectors themselves, together with video and control signals, are transmitted during the NTSC retrace period.

REFERENCES:
patent: 4668987 (1987-05-01), Matsuda et al.
patent: 4703350 (1987-10-01), Hinman
patent: 4851906 (1989-07-01), Koga et al.

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