H - Electricity – 03 – J
Patent
H - Electricity
03
J
H03J 5/28 (2006.01) H03J 1/06 (2006.01) H04N 5/50 (2006.01)
Patent
CA 2064623
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 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, according to the present invention, 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 unit according to whither 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.
Baik Woon Kil
Lee Jae Kyung
Song Han Bok
Goldstar Co. Ltd.
Marks & Clerk
LandOfFree
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