Television – Basic receiver with additional function – For display of additional information
Patent
1994-06-28
1995-09-26
Groody, James J.
Television
Basic receiver with additional function
For display of additional information
348584, 348567, H04N 545, H04N 5260, H04N 5261
Patent
active
054537967
ABSTRACT:
A television receiver system having PIP capability includes two NTSC tuners and signal processing arrangements, and an HDTV tuner and signal processing arrangement. In order to accomplish a CHANNEL SWAP function, a controller searches a table for data indicative of pairing of NTSC channels and HDTV channels, the NTSC channel associated with the main channel HDTV source is tuned by the PIP NTSC tuner, and the HDTV channel associated with the PIP NTSC source is tuned by the HDTV tuner. If the inset image has no paired HDTV channel then the second NTSC tuner is controlled to select the channel formerly tuned by the PIP NTSC tuner.
REFERENCES:
patent: 4605950 (1986-08-01), Goldberg et al.
patent: 4670783 (1987-06-01), Nadan
patent: 4694338 (1987-09-01), Tsinberg
patent: 5122875 (1992-06-01), Raychaudhuri et al.
patent: 5134464 (1992-07-01), Basile et al.
patent: 5148272 (1992-09-01), Acampora et al.
patent: 5235424 (1993-08-01), Wagner et al.
patent: 5287180 (1994-02-01), White
Sony, KW-3600HD.
Altmanshofer Robert D.
Duffield David J.
Burgess Glenton B.
Emanuel Peter M.
Groody James J.
Lenihan Thomas F.
Thomson Consumer Electronics Inc.
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