×

Noise squelch circuit with adaptive noise shaping

  • US 5,303,406 A
  • Filed: 04/29/1991
  • Issued: 04/12/1994
  • Est. Priority Date: 04/29/1991
  • Status: Expired due to Term
First Claim
Patent Images

1. A noise squelch circuit for a radio receiver, comprising:

  • a demodulator for demodulating a received communication signal having a demodulator output;

    a filter means for adaptively shaping frequency characteristics of noise present at the demodulator output in response to a control signal, wherein said control signal corresponds to channel spacing of the radio receiver; and

    squelch means coupled to said filter means for squelching the radio receiver.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×