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Partitioned radio-frequency apparatus and associated methods

  • US 8,948,708 B2
  • Filed: 05/21/2014
  • Issued: 02/03/2015
  • Est. Priority Date: 01/12/2001
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • a radio-frequency (RF) receiver, comprising;

    first down-converter circuitry coupled to receive an RF signal and to generate first in-phase and first quadrature signals;

    analog-to-digital converter (ADC) circuitry coupled to receive the first in-phase and first quadrature signals and to generate second in-phase and second quadrature signals;

    second down-converter circuitry coupled to receive the second in-phase and second quadrature signals and to generate third in-phase and third quadrature signals; and

    finite impulse-response (FIR) filter circuitry coupled to receive the third in-phase and third quadrature signals and to generate fourth in-phase and fourth quadrature signals, wherein the FIR filter has programmable response characteristics.

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