07043208 is referenced by 75 patents and cites 10 patents.

An apparatus and method to reduce interference in a communication device particularly effective for second-order interference in direct conversion receiver from a co-located transmitter. This is accomplished by characterizing a transfer function of a transmission path from the transmitter to the receiver and applying this transfer function to the baseband signal from the transmitter to provide an estimation of interference to be expected in the received signal. The estimated interference is subtracted from the receiver baseband signal to reduce interference. Adaptive filtering can also be applied to further minimize interference dynamically.

Title
Method and apparatus to reduce interference in a communication device
Application Number
10/271280
Publication Number
7043208 (B2)
Application Date
October 15, 2002
Publication Date
May 9, 2006
Inventor
Louis M Nigra
Chicago
IL, US
Agent
Randall S Vaas
Brian M Mancini
Assignee
Motorola
IL, US
IPC
H04B 1/44
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