Automatic frequency control device for television receiver

Details Automatic frequency control device for television receiver Automatic frequency control device for television receiver

H - Electricity

04

N

350/92

H04N 5/05 (2006.01) H03J 7/10 (2006.01) H04N 5/50 (2006.01)

Patent

CA 1038487

ABSTRACT OF THE DISCLOSURE An automatic frequency control device is disclosed wherein the S-shaped character voltage derived by the EM detection of the video intermediate frequency signal is applied to a local oscillator so as to correct its oscillation frequency. The S-shaped character voltage is corrected in response to the output voltage derived channel so that the pull-in range may be increased. - 1 -

206969

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