Title: Multi-system TV set receiver
Application Number: 85104465 Application Date: 1985.06.11
Publication Number: 1000846 Publication Date: 1986.05.10
Approval Pub. Date: 1991.06.05 Granted Pub. Date: 1991.06.05
International Classifi-cation: H04N5/46
Applicant(s) Name: Sharp Co. Address:
Inventor(s) Name: Kato Tomio
Attorney & Agent: WU BINGFENG LI XIANCHUN
Abstract:
    A multi-system television receiver capable of receiving television signals of PAL system, NTSC system and SECAM system with a plurality of different subcarrier wave frequencies, includes a frequency detecting circuit for detecting the frequency of a subcarrier wave of the television signal and producing frequency data representing the detected frequency, a system detecting circuit for detecting the system of the television signal and producing system data representing the detected system, a channel change detecting circuit for detecting a channel change, a holding circuit for holding the frequency data and the system data upon changing of the channel detected by the detecting circuit, and television circuits which are set in a condition in compliance with the broadcast system of the received television signal as determined by the frequency data and the system data.
Time: 10