Layered mix effects switcher architecture

Details Layered mix effects switcher architecture Layered mix effects switcher architecture

1989-04-27

1990-08-07

Peng, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358183, 358 22, H04N 5268, H04N 5262, H04N 974

Patent

active

049472542

ABSTRACT:
A mix effects based switcher architecture provides for processing of video signals with associated key signals throughout, the mix effects (M/E) banks within the switcher outputting both a composited video signal and a composited key signal for use by subsequent M/E banks. The outputs of the M/E banks may be combined together before being input to an output M/E bank. The output M/E bank provides a layered video signal with associated composited key signal at the output of the switcher.

REFERENCES:
patent: 4360831 (1982-11-01), Kellar
patent: 4694343 (1987-09-01), Flora
patent: 4758892 (1988-07-01), Bloomfield
patent: 4851912 (1989-07-01), Jackson et al.
patent: 4853784 (1989-08-01), Abt et al.

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