| 摘要 |
A television receiver receives a scrambled television signal of the suppressed sync pulse type. The sync pulse is restored by a decoder which provides a sync restored video signal to video signal processing circuits of the receiver, and to automatic gain control circuits of the receiver via an interface network. The interface network develops a control signal with a magnitude related to the magnitude of the restored sync pulse. The control signal is coupled to the automatic gain control circuits for maintaining a desired video signal gain. The disclosed suppressed sync signal processing system permits the use of an uncomplicated and economical decoder, i.e., without integral tuner, AGC and remodulator circuits.
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