06970518 is referenced by 47 patents and cites 28 patents.

A communications method including the steps of: receiving signals from at least one signal source during a first signal source transmission; estimating at least one signal source parameter based on the received signals during the first signal source transmission; receiving signals from at least one signal source during a second signal source transmission; and determining a difference between the first and second signal source transmissions using the at least one estimated signal source parameter.

Title
Method and apparatus for electronic item identification in a communication system using known source parameters
Application Number
10/385549
Publication Number
6970518 (B2)
Application Date
March 11, 2003
Publication Date
November 29, 2005
Inventor
David P Gurney
Carpentersville
IL, US
Bruce Eastmond
Downers Grove
IL, US
Timothy Collins
Lockport
IL, US
Stephen Kuffner
Algonquin
IL, US
Agent
Thomas V Miller
Terri S Hughes
Valerie M Davis
Assignee
Motorola
IL, US
IPC
H04Q 005/22
H04L 027/06
H04L 027/00
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