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. 02, 2007
Filed:
Apr. 10, 2003
Jeongsoon Park, Lafayette, IN (US);
Seo Weon Heo, South Korea, KR;
Markman Ivonete, Carmel, IN (US);
Saul Brian Gelfand, Lafayette, IN (US);
Jeongsoon Park, Lafayette, IN (US);
Seo Weon Heo, South Korea, KR;
Markman Ivonete, Carmel, IN (US);
Saul Brian Gelfand, Lafayette, IN (US);
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
An apparatus for automatically selecting one of a standard decision directed mode and a soft dd mode in a decision feedback equalizer for receiving a data signal includes an equalizer utilizing forward error correction for providing first and second output signals corresponding to a DFE automatic switching mode and a soft automatic switching mode, respectively, and a comparator for comparing byte error rates of the first and second output signals for selecting as a superior mode that mode associated with a lower ByER and outputting the output signal with the lower ByER. A lock detector provides a lock signal derived from the DFE output signal with the lower ByER and a mode switch selectively places the DFE outputs in one of the dd modes or a blind mode, depending on the lock signal.