Raster manipulated television receiver
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 1, 1981
Grant Date -
N/A
app pub date -
Jul 14, 1980
filing date -
Jul 14, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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