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. 17, 2011
Filed:
Dec. 28, 2007
Moises Cases, Austin, TX (US);
Daniel N. DE Araujo, Cedar Park, TX (US);
Bhyrav M. Mutnury, Austin, TX (US);
Terence Rodrigues, Austin, TX (US);
Moises Cases, Austin, TX (US);
Daniel N. de Araujo, Cedar Park, TX (US);
Bhyrav M. Mutnury, Austin, TX (US);
Terence Rodrigues, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention provides a simple, easy to implement method and apparatus to reduce jitter in a channel and expand the eye width and eye height of the eye pattern of the signal. The method and apparatus of the present invention reduces jitter specific to a channel in a high speed interface. The present invention utilizes a phasing shifting mechanism based on history of the incoming bits at the receiver. The input bits from the channel are shifted in time before getting to the receiver. This approach significantly reduces Intersymbol Interference (ISI) and deterministic jitter, thus opening up the eye width and eye height for a given interface.