Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations

  • US 7,110,444 B1
  • Filed: 08/04/2000
  • Issued: 09/19/2006
  • Est. Priority Date: 08/04/1999
  • Status: Expired due to Fees
First Claim
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1. A wireless modem apparatus, comprising:

  • a receiver for frequency down-converting an input signal including, a first frequency down-conversion module to down-convert the input signal, wherein said first frequency down-conversion module down-converts said input signal according to a first control signal and outputs a first down-converted signal;

    a second frequency down-conversion module to down-convert said input signal, wherein said second frequency down-conversion module down-converts said input signal according to a second control signal and outputs a second down-converted signal; and

    a subtractor module that subtracts said second down-converted signal from said first down-converted signal and outputs a down-converted signal;

    wherein said second control signal is delayed relative to said first control signal by (0.5+n) cycles of said input signal, wherein n is an integer greater than or equal to 1.

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