OSD in a TV receiver including a window, smoothing and edge enha

Details OSD in a TV receiver including a window, smoothing and edge enha OSD in a TV receiver including a window, smoothing and edge enha

1989-04-24

1990-08-28

Peng, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 22, 358183, 358140, H04N 544, H04N 5272, H04N 701, H04N 794

Patent

active

049530275

ABSTRACT:
A TV receiver including a microprocessor and an on screen display on a single semiconductor chip. The OSD includes half dot logic and shifting to smooth the characters with a minimum of storage capacity required and the half dot logic is used in an edge enhancing circuit to generate a black surround. A simplified window generator is combined therewith to further improve the characters.

REFERENCES:
patent: 4345243 (1982-08-01), Parsons
patent: 4467360 (1984-08-01), Fosse
patent: 4611226 (1986-09-01), Buhse et al.
patent: 4661844 (1987-04-01), Rufray et al.
patent: 4682209 (1987-07-01), Nilleson
patent: 4802009 (1989-01-01), Hartmeier
patent: 4837562 (1989-06-01), Nishiura et al.

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