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Meter terminal unit for use in automatic remote meter reading and control system

  • US 4,204,194 A
  • Filed: 04/24/1978
  • Issued: 05/20/1980
  • Est. Priority Date: 05/23/1977
  • Status: Expired due to Term
First Claim
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1. Apparatus for synchronizing a serial stream of data signals with a clock signal comprising;

  • (a) a source of alternating current(b) data signal generating means electrically energizable by said alternating current for directly generating a serial stream of data signals having states representative of binary data wherein the data signals are generated asynchronously of the alternating current;

    (c) clock signal generating means including synchronization means electrically responsive to said alternating current and said data signals to provide a repetitively occurring clock signal which is synchronized with said data signals; and

    (d) means for combining said clock signal and said data signals whereby said data signals are provided as binary data synchronized by said clock signal.

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