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:
Feb. 10, 2009
Filed:
Aug. 30, 2005
Applicant:
Wayne Tseng, Taipei Hsien, TW;
Inventor:
Wayne Tseng, Taipei Hsien, TW;
Assignee:
VIA Technologies Inc., Hsin-Tien, Taipei Hsien, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01); G06F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A built-in self test circuit includes a first pattern generator, an elastic buffer receiver, a command symbol detector, a second pattern generator, and a logic unit. The architecture is capable of compensating loopback latency automatically without having to utilize a device that stores test patterns generated by the first pattern generator, and error warning can be greatly reduced. Also, the architecture can reduce the effect of phase jitter and error rate count is provided. Hence, accuracy of test can be increased.