Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1990-12-11
1992-07-28
Peng, John K.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358105, 358188, H04N 712, H04N 718, H04N 544
Patent
active
051344777
ABSTRACT:
An HDTV receiver design includes a reconstruction section and an inner loop section. The reconstruction section comprises a receiving section for accepting the television receiver's antenna signals, for separating out the component signals from the received signals and for decoding the separated signals. The decoded signals are applied to a quantization decoder that is responsive to vector codebook and to applied quantized vector signals, and the output signals of the quantization decoder are applied to an inverse DCT circuit. The inner loop comprises an adder for adding an estimate signal to the output of the DCT circuit, a frame buffer, a motion compensation circuit that is capable of translating large blocks as well as small blocks and a leak circuit that modulates the output of the motion compensator circuit in accordance with a received leak control signal. The input to the frame buffer is also applied to conventional amplification and display circuits to form the familiar output of a television receiver.
REFERENCES:
patent: 4794455 (1988-12-01), Ericsson
patent: 4897855 (1990-01-01), Acampora
patent: 4933761 (1990-06-01), Murakami et al.
patent: 5010401 (1991-04-01), Murakami et al.
patent: 5028995 (1991-07-01), Izawa et al.
patent: 5038209 (1991-08-01), Hang
patent: 5040062 (1991-08-01), Knauer et al.
patent: 5043808 (1991-08-01), Knauer et al.
patent: 5063444 (1991-11-01), Knauer et al.
"Digital Pictures" by A. N. Netravali and B. G. Haskell, Plenum Press, 1988, p. 334 et seq.
Knauer Scott C.
Matthews Kim N.
Netravali Arun N.
Petajan Eric D.
Safranek Robert J.
AT&T Bell Laboratories
Brendzel Henry T.
Peng John K.
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