Signal regeneration circuit

Details Signal regeneration circuit Signal regeneration circuit

H - Electricity

03

B

328/28, 331/35

H03B 5/00 (2006.01) H03L 7/07 (2006.01)

Patent

CA 1180068

ABSTRACT OF THE DISCLOSURE A signal regeneration circuit is of a type using first and second phase-locked loop (PLL) circuits each having a phase comparator, a loop filter and a voltage controlled oscillator (VCO) in which the phase of an input signal is shifted in a desired amount. The first PLL operates as an input signal frequency averaging means, and the second PLL operates to satisfy the final performance as a signal regenerative circuit based on the output of the VCO in the first PLL, thereby producing as a regenerative signal the output of the VCO in the second PLL. Thus, this signal regeneration circuit can regenerate a clear signal having no noise from an unclear input signal deeply immersed in noise.

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