Video mixer with multicolor boarder

Details Video mixer with multicolor boarder Video mixer with multicolor boarder

1988-02-01

1989-04-18

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358182, 358183, H04N 976

Patent

active

048231835

ABSTRACT:
Video effects apparatus comprises a wipe generator for generating a wipe signal and a matte generator for generating a matte signal. The matte generator receives the wipe signal and the color represented by the matte signal is dependent on the wipe signal. First and second control signals are provided in response to the wipe signal. A first video mixer has signal input terminals connected to receive a first video signal and the matte signal respectively and a mix control input terminal connected to receive the first control signal as a mix control signal, and a second video mixer has signal input terminals connected to receive respectively a second video signal and the output signal of the first video mixer. The second mixer has a mix control input terminal connected to receive the second control signal as a mix control signal.

REFERENCES:
patent: 4028727 (1977-06-01), Skrydstrup
patent: 4121253 (1978-10-01), McCoy
patent: 4698666 (1987-10-01), Lake, Jr. et al.
patent: 4764809 (1988-08-01), Haycock et al.

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