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:
Aug. 29, 2006
Filed:
Dec. 21, 2001
John T. Coffey, San Francisco, CA (US);
John T. Coffey, San Francisco, CA (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Narrowband interference can seriously degrade the overall performance of a communications network without significantly damaging a large percentage of the communications network's transmissions. In a single tone communications network, narrowband interference can reduce the overall signal-to-noise ratio to a level such that a receiver can no longer accurately decode the received transmission. However, the receiver's filters and equalizers often can filter out the effects of the narrowband interference and the receiver can accurately decode the received transmission if the receiver can restart the decoding at the point when the narrowband interference began interfering with the transmission. A technique using sequential decoding with backtracking and adaptive equalization permits the receiver to adapt to the presence of the narrowband interference and backtrack the decoding to a point prior to the interference.