06421534 is referenced by 107 patents and cites 57 patents.

Methods and apparatuses for frequency selectivity and frequency translation, and applications for such methods and apparatuses, are described herein. The method includes steps of filtering an input signal, and down-converting the filtered input signal. The filtering and the down-conversion operations are performed in an integrated, unified manner. The apparatus described herein can be implemented as an integrated circuit (IC).

Title
Integrated frequency translation and selectivity
Application Number
9/376537
Publication Number
6421534 (B1)
Application Date
August 18, 1999
Publication Date
July 16, 2002
Inventor
David F Sorrells
Middleburg
FL, US
Charley D Moses Jr
DeBary
FL, US
Richard C Looke
Jacksonville
FL, US
Michael J Bultman
Jacksonville
FL, US
Robert W Cook
Switzerland
FL, US
Agent
Sterne Kessler Goldstein & Fox P L L C
US
Assignee
ParkerVision
FL, US
IPC
H04B 1/26
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