Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1991-03-29
1992-10-20
Groody, James J.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358181, 358 22, H04N 5265, H04N 5262
Patent
active
051574942
ABSTRACT:
Apparatus for combining video signals comprises first and second static effect channels for generating first and second full-field video signals respectively. A transition control signal generator generates first and second transition control signals each having a full-field domain and a predetermined range, the sum of the first and second control signals nowhere exceeding the predetermined range. Arithmetic circuitry multiplies the first video signal by the first transition control signal to generate a first addend signal, multiplies the second full-field video signal by the second transition control signal to generate a second addend signal, and sums the first and second addend signals to provide an output video signal.
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Groody James J.
Hsia Sherrie
Smith-Hill John
The Grass Valley Group Inc.
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