Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1975-12-29
1977-02-22
Martin, John C.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358150, H04N 946
Patent
active
040094871
ABSTRACT:
A single pre-vertical sync pulse that repeats once each field and the line-by-line chroma phase information which exists in the form of the PAL square wave at one-half of the horizontal line frequency are combined in a novel circuit comprising a pair of J-K flip-flops to directly produce the complete Bruch blanking function in digital form for each field on an independent field-by-field basis.
REFERENCES:
patent: 3627913 (1971-12-01), Ellis
DeCamillis Mason
Martin John C.
RCA Corporation
Whitacre Eugene M.
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