Tuner in which numerical channel command is converted to...

H - Electricity – 03 – J

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H03J 5/00 (2006.01) H03J 5/02 (2006.01) H03J 7/10 (2006.01) H03M 1/00 (2006.01) H04N 5/50 (2006.01)

Patent

CA 1039870

TUNER IN WHICH NUMERICAL CHANNEL COMMAND IS CONVERTED TO ANALOG VOLTAGE ABSTRACT A channel address system for selecting a channel for use in a television receiver having a voltage controlled tuner and circuitry for developing an automatic fine tuning voltage in which the tuning is controlled by ten touch switches. The channel number entered via the switches generates a digital channel command which is utilized by converting means to produce corresponding voltage levels for tuning the voltage controlled tuner. These voltage levels are modified by the automatic fine tuning voltage for precisely tuning the tuner to the desired channel frequency.

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