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. 29, 2013
Filed:
Jan. 29, 2007
Gerald R. Talbot, Concord, MA (US);
Paul C. Miranda, Austin, TX (US);
Emerson S. Fang, Fremont, CA (US);
Rohit Kumar, San Jose, CA (US);
Gerald R. Talbot, Concord, MA (US);
Paul C. Miranda, Austin, TX (US);
Emerson S. Fang, Fremont, CA (US);
Rohit Kumar, San Jose, CA (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A technique for characterizing a communications interface includes determining a voltage margin and a timing margin of the interface based on data sampled by a sampling device of a receiver of the interface. In at least one embodiment of the invention, a method for determining margin associated with a receiver circuit of an integrated circuit includes periodically sampling a signal over a time period by a receiver sampling circuit of the receiver circuit to generate a sampled version of the signal. The method includes incrementally varying a value of the parameter associated with the signal. The varying of the parameter is through a range of values of the parameter over the time period. The method includes determining a margin value of the receiver circuit associated with the parameter based, at least in part, on the sampled version of the signal.