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:
Sep. 13, 2005
Filed:
Dec. 03, 2003
Applicants:
Volker Mauer, High Wycombe, GB;
James Tyson, Slough, GB;
Inventors:
Volker Mauer, High Wycombe, GB;
James Tyson, Slough, GB;
Assignee:
Altera Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F015/00 ;
U.S. Cl.
CPC ...
Abstract
Apparatus and method extract data from a data stream. The method includes oversampling the data stream, performing first processing on adjacent bits of the oversampled data stream, performing second processing the results of the first processing, comparing the results of the second processing, and selecting an alignment of data based on the comparison. The method can be efficiently implemented using accumulators, delay elements, and XOR elements. In this manner, data may be extracted from the data stream despite a varying or unknown phase or duty cycle, or in the presence of jitter.