The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 2009
Filed:
May. 13, 2004
Applicants:
Dean E. Thorson, Grayslake, IL (US);
Michael J. Kinnavy, Park Ridge, IL (US);
Takeshi Morishima, Hoffman Estates, IL (US);
Inventors:
Dean E. Thorson, Grayslake, IL (US);
Michael J. Kinnavy, Park Ridge, IL (US);
Takeshi Morishima, Hoffman Estates, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 1/16 (2006.01); H04B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method () and corresponding data processing system () of detecting cloned or duplicated communication units based on received signals is described. The method comprise receiving a signal () comprising a sequence of data symbols; and determining () whether the signal originated from a plurality of communication units based on a parameter, such as power or quality level of a group of the data symbols.