Multi-system television receiver

H - Electricity – 04 – N

Patent

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350/36, 350/68

H04N 5/46 (2006.01)

Patent

CA 1262281

Abstract of the Disclosure A multi-system television receiver capable of receiving television signals of a plurality of different broadcasting systems with a plurality of different subcarrier wave frequencies involves detecting the frequency of a subcarrier wave of the received television signal and producing frequency data representing the detected frequency. Provision is also made for detecting the system of the television signal and producing system data representing the detected system. Changing of a TV channel of the receiver is also detected, and the frequency data and system data are held. The television receiver circuits are then set in a condition that complies with the broadcast system of the received television signal as determined by the frequency data and the system data.

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