Video processors

Details Video processors Video processors

1983-10-24

1985-09-24

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358105, H04N 942, 358, 358

Patent

active

045436070

ABSTRACT:
A video signal processor for effecting frame rate conversion. A number of framestores connected in series receive incoming video signals under the control of a first generator and are available from the respective fieldstores under the control of a second generator. The presence of respective one line delays allow two adjacent lines from the same field to be available for use by respective multipliers and thence to an adder. A comparator determines if significant movement is present and modifies co-efficients to the multipliers, made available from a co-efficient control so as to allow a single field to pass to the output if desired.

REFERENCES:
patent: 4240101 (1980-12-01), Michael et al.
patent: 4296434 (1981-10-01), Drewery
patent: 4335395 (1982-06-01), Clarke
patent: 4383272 (1983-05-01), Netravali
patent: 4488174 (1984-12-01), Mitchell

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