Television – Basic receiver with additional function – For display of additional information
Patent
1994-12-29
1996-03-12
Kostak, Victor R.
Television
Basic receiver with additional function
For display of additional information
348511, 348569, 348584, 348589, 348600, 348659, 345141, H04N 5262, H04N 5272, H04N 5265, H04N 5445
Patent
active
054990548
ABSTRACT:
A video mixing apparatus for use in a video equipment capable of providing a mixed image luminance signal comprises a synchronization ("sync") separator for providing a horizontal sync, vertical sync and composite sync signals from an input image luminance signal; a character/pattern controller, in response to the horizontal and vertical sync signals, for generating a character luminance and a pattern luminance signals; a character mixer for mixing the composite sync signal with the character luminance signal to produce a mixed character signal; a pattern mixer for mixing the composite sync signal with the pattern luminance signal to produce a mixed pattern signal; and switching apparatus for mixing the mixed character signal and the mixed pattern signal with the image luminance signal to thereby provide the mixed image luminance signal.
REFERENCES:
patent: 4450442 (1984-05-01), Tanaka
patent: 4580165 (1986-04-01), Patton et al.
patent: 5161236 (1992-11-01), Nakayama et al.
patent: 5185603 (1993-02-01), Medin
patent: 5185665 (1993-02-01), Okura et al.
Burgess Glenton B.
Daewoo Electronics Co. Ltd.
Kostak Victor R.
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