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:
May. 04, 2004
Filed:
Oct. 06, 2000
Applicant:
Inventors:
Joseph Boccuzzi, Staten Island, NY (US);
Kevin Hwang, Sunnyvale, CA (US);
Roopa Rao, Santa Clara, CA (US);
Assignee:
Cadence Desicgn Systems, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 7/00 ; H04L 2/536 ; H04L 2/722 ; H03D 1/00 ;
U.S. Cl.
CPC ...
H04L 7/00 ; H04L 2/536 ; H04L 2/722 ; H03D 1/00 ;
Abstract
Symbol timing is performed by providing a histogram of samples of a signal for a predetermined number of symbol times. An average, weighted average, or other method is applied to determine an average timing for a max eye opening for each symbol time. The average max eye opening timing is applied to an edge detection of a currently received signal to determine timing of a sample that is most likely to occur closest to the max eye opening for the current symbol. The invention may also be practiced based on a center timing of each symbol.