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:
Jun. 24, 2003
Filed:
Nov. 12, 1999
Hossein Dehghan, Danville, CA (US);
Ting-Yin Chen, San Jose, CA (US);
LSI Logic Corporation, Milpitas, CA (US);
Abstract
An adaptive equalizer for use in a communication receiver that prevents equalizer operation divergence in response to slicer errors in a high noise communication application. The equalizer uses the difference between an equalized sample value and the nearest constellation point determined by the slicer both as the equalizer adaptation value and as a control value to selectively enable or minimize (disable) adaptation modifications. The difference is compared to a threshold value to determine whether the difference should be applied to the equalizer for adaptation purposes or a minimal value to prevent equalizer divergence in response to significant slicer errors. The threshold value is determined as a function of the ratio of the probability of correct slicer determinations and the probability of incorrect slicer determinations for a given sample value and a given signal to noise ratio. The threshold value may be predetermined as a constant for a particular communication application or may be dynamically computed as communications proceed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile