Tuning apparatus for television system and method of controlling

Details Tuning apparatus for television system and method of controlling Tuning apparatus for television system and method of controlling

1992-06-12

1994-08-16

Powell, Mark R.

Television

Receiver circuitry

Tuning

348570, 334 11, 334 49, 4551701, 4551801, 4551811, 4551841, H04N 550

Patent

active

053391179

ABSTRACT:
Tuning apparatus for a television system, comprising a rotary encoder having a slidable and rotatable channel changing mechanism, the rotary encoder outputting a plurality of signals with a phase difference with respect to one another, corresponding to a channel change in accordance with the rotation of the channel changing mechanism, a microcomputer for calculating a channel number to be changed in accordance with the output signals from the rotary encoder and outputting channel receive data corresponding to the calculated channel number, and a tuner for receiving a television broadcasting signal of a channel corresponding to the channel receive data from the microcomputer. Also, there is provided a method of controlling tuning in a television system, comprising the steps of: generating two signals with a phase difference with respect to each other, recognizing channel increment direction, channel decrement direction and generation of an error, according to states of the two signals, calculating a new channel number to be changed by the system according to whether the recognized channel change direction is the channel increment or decrement direction, and providing the tuner with channel receive data corresponding to the calculated new channel number such that the tuner selects a new channel.

REFERENCES:
patent: 3769620 (1973-10-01), Kimura et al.
patent: 4128821 (1978-12-01), Kato et al.
patent: 4307467 (1981-12-01), Bridgewater
patent: 4317225 (1982-02-01), Henderson et al.
patent: 4363134 (1982-12-01), Murata et al.
patent: 4631585 (1986-12-01), Wine
patent: 4805230 (1989-02-01), Tanaka
patent: 4918531 (1990-04-01), Johnson
patent: 5182646 (1993-01-01), Keenan

Affiliated with

Also associated with

Rating

Tuning apparatus for television system and method of controlling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tuning apparatus for television system and method of controlling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tuning apparatus for television system and method of controlling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-956051