Raster manipulated television receiver

Details Raster manipulated television receiver Raster manipulated television receiver

1980-07-14

1981-12-01

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

350147, 350148, 350180, 350140, H04N 708

Patent

active

043039405

ABSTRACT:
A television receiver is disclosed for selectively displaying either a 525 line NTSC video signal or a 625 line European teletext or Viewdata signal. The receiver includes two vertical countdown circuits: a 525 line countdown circuit for use in generating an NTSC type raster, and a 625 line countdown circuit for use in generating a 625 line raster. Switch means are provided for selecting between the two signals generated by the countdown circuits. The receiver CRT uses self-converging, in-line guns.

REFERENCES:
patent: 4148077 (1979-04-01), Bragas
patent: 4233628 (1980-11-01), Ciciora

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