Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1991-11-15
1993-07-13
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358105, H04N 3133, H04N 3137
Patent
active
052278786
ABSTRACT:
Improved compression of digital signals relating to high resolution video images is accomplished by an adaptive and selective coding of digital signals relating to frames and fields of the video images. Digital video input signals are analyzed and a coding type signal is produced in response to this analysis. This coding type signal may be used to adaptively control the operation of one or more types of circuitry which are used to compress digital video signals so that less bits, and slower bit rates, may be used to transmit high resolution video images without undue loss of quality. For example, the coding type signal may be used to improve motion compensated estimation techniques, quantization of transform coefficients, scanning of video data, and variable word length encoding of the data. The improved compression of digital video signals is useful for video conferencing applications and high definition television, among other things.
REFERENCES:
patent: 4437087 (1984-03-01), Petr
patent: 4475213 (1984-10-01), Medaugh
patent: 4958226 (1990-09-01), Haskell et al.
patent: 4969040 (1990-11-01), Charavi
patent: 4999705 (1991-03-01), Puri
patent: 5001561 (1991-03-01), Haskell et al.
patent: 5091782 (1992-02-01), Krause
B. Astle, "A Proposal For MPEG Video Report, Rev. 1," Int'l Organization For Standardization, ISO-IEC/JTC1/SC2/WG11, Aug. 14, 1991, pp. 1-78.
"Coding Of Moving Pictures And Associated Audio--For Digital Storage Media At Up To About 1.5 Mbit/s--Part 2 Video," 1991, pp. 2-51.
A. N. Netraveli et al., "Digital Pictures Representation and Compression," (Plenum Press, New York 1988), pp. 301-504.
Aravind Rangarajan
Puri Atul
AT&T Bell Laboratories
Britton Howard W.
Indyk E. S.
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