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:
Aug. 21, 2007
Filed:
Nov. 23, 2005
Applicants:
Ning Xue, Fremont, CA (US);
Chong H Lee, San Ramon, CA (US);
Inventors:
Ning Xue, Fremont, CA (US);
Chong H Lee, San Ramon, CA (US);
Assignee:
Altera Corporation, San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03M 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An integrated circuit like a programmable logic device ('PLD') includes a communication channel employing 8B/10B coding. Disparity information determined by 8B/10B decoder circuitry in the communication channel is supplied to other circuitry of the PLD so that any requirement for disparity to have a particular value in conjunction with certain received codes can be checked. On the transmitter side, circuitry is provided for selectively forcing the 8B/10B encoder to use a commanded disparity (which can be either positive or negative) under particular circumstances.