Method and apparatus capable of reducing the tuning time of cabl

Details Method and apparatus capable of reducing the tuning time of cabl Method and apparatus capable of reducing the tuning time of cabl

1995-12-27

1997-08-19

Peng, John K.

Television

Two-way video and voice communication

User positioning

348731, 455 62, H04N 716

Patent

active

056593520

ABSTRACT:
A novel cable television (CATV) signal tuning method, which is capable of reducing the time taken to tune CATV signals transmitted via a cable, comprises (a) determining, in response to a mode determination signal, one of harmonical related carriers (HRC), interval related carrier (IRC) and standard (STD) transmission modes as a definitive transmission mode for a plurality of channels, to thereby produce mode information of the definitive transmission mode; (b) storing the mode information; and (c) fine-tuning, in response to a channel selection signal, a CATV signal from a selected channel based on the definitive transmission mode represented by the stored mode information.

REFERENCES:
patent: 4677685 (1987-06-01), Kurisu
patent: 5087977 (1992-02-01), Suizu
patent: 5245437 (1993-09-01), Na
patent: 5329364 (1994-07-01), Lee
patent: 5508762 (1996-04-01), Lee
patent: 5594510 (1997-01-01), Sakakibara

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