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Demodulator having an infinite-duration impulse response filter with dynamic coeffiecient scaling

  • US 6,243,410 B1
  • Filed: 06/03/1998
  • Issued: 06/05/2001
  • Est. Priority Date: 03/29/1996
  • Status: Expired due to Term
First Claim
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1. A demodulator for producing a received signal strength indicator (RSSI) value signal and a power control data signal comprising:

  • an infinite-duration impulse response (IIR) filter with dynamic coefficient scaling having;

    an adder having an adder output;

    a coefficient selection block, coupled to the adder output, for selectively multiplying a signal at the adder output by either a first coefficient set or a second coefficient set; and

    a delay block, coupled to the coefficient selection block, for providing a negative feedback signal from the coefficient selection block to the adder.

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