×

Digital FM receiver employing combined sample-and-hold and integrate-and-dump detectors for improved bit error rates

  • US 6,496,547 B1
  • Filed: 11/30/1999
  • Issued: 12/17/2002
  • Est. Priority Date: 11/30/1999
  • Status: Active Grant
First Claim
Patent Images

1. A machine-implemented method for detecting the bit value corresponding to a data bit-interval of a digital FM receiver limiter-discriminator (LD) output signal, the method comprising the steps of:

  • (a) integrating the LD output signal over the data bit-interval to produce a first signal representing a first estimate of the corresponding bit value;

    (b) producing a first bit detection signal representing a first threshold function of the first signal;

    (c) sampling the LD output signal in the data bit-interval to produce a second signal representing a second estimate of the corresponding bit value;

    (d) producing a second bit detection signal representing a second threshold function of the second signal; and

    (e) combining the first and second bit detection signals to produce a final bit detection signal representing a final estimate of the corresponding bit value.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×