Television receiver with auxiliary on-screen display

Details Television receiver with auxiliary on-screen display Television receiver with auxiliary on-screen display

1983-10-12

1985-08-20

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358183, 3581911, H04N 544, H04N 522

Patent

active

045367973

ABSTRACT:
As a signal seeking tuner tunes through a number of channels to locate the next active (useable) channel, the display screen of a television receiver is blanked when the receiver is tuned between channels or to an inactive (unuseable) channel for which video signal information is substantially absent. Superimposed over the blanked screen background is a moveable tuning indicator bar, the position of which indicates the channel to which the receiver is tuned. The blanking of the screen prevents the tuning indication from being obscured by background noise.

REFERENCES:
patent: 4047226 (1977-09-01), Hedges
patent: 4330792 (1982-05-01), Naimpally
patent: 4390902 (1983-06-01), Chin et al.

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