Carrier wave regenerating circuit
专利汇可以提供Carrier wave regenerating circuit专利检索，专利查询，专利分析的服务。并且PURPOSE:To prevent the pseudo-acquisition of synchronism by increasing the lock in range on synchronization with simple constitution by discriminating whether the signal with the frequency difference between an input signal frequency and the oscillation frequency of a voltage-controlled oscillator has a prescribed value or not, and by controlling the oscillation frequency according to the discrimination result. CONSTITUTION:One output signal of base band processing circuit 24 which processes outputs of phase detectors 22 and 23 is differentiated by differentiating circuit 25, and the output of said circuit 25 and the other output of processing circuit 24 are applied to mixer 26. The output of mixer 26 is applied to discriminator 28 via BPF27. Discriminator 28 finds the difference between the oscillation frequency of voltage-controlled oscillator 32 and an input signal frequency and, when the difference is above a prescribed value, the output is applied to oscillator 32 supplied with the output of LPF31 via differentiating circuit 30 to control the oscillation frequency of oscillator 32, whose output is applied to detectors 22 and 23. Then, the frequency leading-in loop is provided with discriminator 28 which discriminates the frequency difference between the oscillation frequency of oscillator 32 and the input signal frequency to increase the lock-in range on synchronization.，下面是Carrier wave regenerating circuit专利的具体信息内容。
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