Video signal processing device for image editing using memory

Details Video signal processing device for image editing using memory Video signal processing device for image editing using memory

1990-02-20

1992-09-08

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 22, 358182, 358167, H04N 5262, H04N 5272, H04N 974

Patent

active

051463342

ABSTRACT:
A video signal processing device is arranged to obtain a signal representing a difference between an input video signal and a signal read out from a memory to which either the input video signal or an input video signal is supplied, to supply the difference signal to a multiplier which uses a variable coefficient, and to add the output of the multiplier to the input video signal.

REFERENCES:
patent: 4163249 (1979-07-01), Michael et al.
patent: 4768095 (1988-08-01), Wada et al.
patent: 4779135 (1988-10-01), Judd
patent: 4841366 (1989-06-01), Katagiri et al.
patent: 4994900 (1991-02-01), Ebara et al.

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