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:
Feb. 17, 2009
Filed:
Apr. 11, 2003
Ivonete Markman, Carmel, IN (US);
Jeongsoon Park, Lafayette, IN (US);
Seo Weon Heo, Seoul, KR;
Saul Brian Gelfand, Lafayette, IN (US);
Ivonete Markman, Carmel, IN (US);
Jeongsoon Park, Lafayette, IN (US);
Seo Weon Heo, Seoul, KR;
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 comprises an equalizer for providing a DFE output signal and having a control input responsive to a control signal exhibiting a first value for selecting the standard dd mode and a second value for selecting the soft dd mode. The equalizer includes a lock detector having an output for providing a lock signal indicative of equalizer convergence. The apparatus includes a mode selector having an input coupled to the lock detector output and having an output coupled to the control input for providing an output signal exhibiting one of the first and second values depending upon characteristics of the lock signal.