Video processing systems

Details Video processing systems Video processing systems

1987-06-15

1988-07-05

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358166, H04N 5213

Patent

active

047558792

ABSTRACT:
A video processing system is disclosed having a store (1) into which video signals, in the form of a sequence of pixels, are written into and read out of in response to common fixed clocking pulses, although the input video signal is synchronized independently of the output video signal. The phase of the pixels at the input to the store, and also the phase of the line and field synchronizing pulses, is adjusted to correct sub pixel phase error between input and output so that the common pixel clocking pulses can be used thereby substantially reducing cross talk between the input and output signals.

REFERENCES:
patent: 4191968 (1980-03-01), Kirk, Jr.
patent: 4212072 (1980-07-01), Huelsman et al.
patent: 4680632 (1987-07-01), Willis et al.

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