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Synchronizing system

  • US 4,545,061 A
  • Filed: 09/28/1962
  • Issued: 10/01/1985
  • Est. Priority Date: 09/28/1962
  • Status: Expired due to Term
First Claim
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1. In an electronic signal system utilizing at least two separately generated but identical signals, means for maintaining correlated synchronism between said signals which comprises the combination of:

  • means for periodically shifting the phase of one of said signals relative to the other, means for comparing said periodically shifted signal with the other;

    a phase detector having first and second input terminals, first and second signal paths connected from said comparing means and to respective input terminals of said phase detector, said first signal path including periodically phase-reversing integration means and said second signal path including a reference integration means, and means responsive to the output of said phase detector for adjusting the phase of one of said signals in a direction to maintain correlation.

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