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:
Oct. 07, 2008
Filed:
Nov. 29, 2004
Erik Ordentlich, San Jose, CA (US);
Gadiel Seroussi, Cupertino, CA (US);
Sergio Verdu, Princeton, NJ (US);
Marcelo Weinberger, San Jose, CA (US);
Itschak Weissman, Menlo Park, CA (US);
Erik Ordentlich, San Jose, CA (US);
Gadiel Seroussi, Cupertino, CA (US);
Sergio Verdu, Princeton, NJ (US);
Marcelo Weinberger, San Jose, CA (US);
Itschak Weissman, Menlo Park, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
An apparatus for operating on a received signal that includes a noise-free signal that has been corrupted by a channel is disclosed. A memory stores a channel corruption function specifying the probability that a symbol having a value I was converted to a symbol having a value J by the channel, and a degradation function measuring the signal degradation that occurs if a symbol having the value I is replaced by symbol having a value J. The controller parses one of the received signal or the processed signal into phrases, and replaces one of the symbol having a value I in a context of that symbol in the received signal with a symbol having a value J if the replacement would reduce the estimated overall signal degradation in the processed signal. The context of a symbol depends on the phrase associated with the symbol.