On-screen display

Details On-screen display On-screen display

1983-09-30

1985-10-22

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358169, 3581921, H04N 568

Patent

active

045492182

ABSTRACT:
To prevent undesired bending of vertical bar type information displayed on the screen of a kinescope due to kinescope beam current variations, modifying circuits are provided for reducing the beam current threshold level of an automatic beam current limiter stage to a lower threshold level whenever vertical bar type information is displayed.

REFERENCES:
patent: 4126884 (1978-11-01), Shanley, II
patent: 4167025 (1979-09-01), Willis
patent: 4253110 (1981-02-01), Harwood
patent: 4295166 (1981-10-01), Shanley, II
patent: 4338623 (1982-07-01), Asmus et al.
patent: 4366502 (1982-12-01), Shiu
Article titled, "Combined Color RGB Insert Card for the Compact Universal Chassis," Grundig Technical Information, vol. 28, Nos. 5/6, 1981, pp. 333-338 (with translation).

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