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Method in a selective call receiver for synchronizing to a multi-level radio signal

  • US 5,960,042 A
  • Filed: 07/01/1997
  • Issued: 09/28/1999
  • Est. Priority Date: 07/01/1997
  • Status: Expired due to Term
First Claim
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1. In a selective call receiver having an internal reference, a method for synchronizing the internal reference to at least one symbol edge of a plurality of symbols included in a multi-level radio signal received from a radio communication system, the method comprising the steps of:

  • converting the multi-level radio signal to a sequence of state transitions representative of the plurality of symbols;

    detecting at least one same state transition from the sequence of state transitions; and

    synchronizing the internal reference to the at least one symbol edge of the plurality of symbols based on the at least one same state transition.

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