Transformation circuit

Details Transformation circuit Transformation circuit

1987-12-14

1989-08-22

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

364725, H04N 7133

Patent

active

048600970

ABSTRACT:
A circuit for the transformation of digital video signals, which circuit includes components operative for effecting transformation of a digital video signal in the form of a matrix of signal elements in a sequence which processes the matrix signal elements row by row and column by column, respectively.

REFERENCES:
patent: 4245248 (1981-01-01), Netravali
patent: 4293920 (1981-10-01), Merola
patent: 4639784 (1987-01-01), Fling
patent: 4656514 (1987-04-01), Wilkinson
patent: 4694336 (1987-09-01), Keesen
patent: 4704628 (1987-11-01), Chen
patent: 4758889 (1988-07-01), Keesen
patent: 4807033 (1989-02-01), Keesen
Modestino et al, "Performance of Block Cosine Image Coding with Adaptive Quantization", IEEE, COM.-33, No. 3, Mar., 1985, pp. 210-217.

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