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.:

US 7266745 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 04, 2007

Filed:

Feb. 02, 2005
Applicant:

Naoki Kiryu, Austin, TX (US);

Inventor:

Naoki Kiryu, Austin, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

Systems and methods for performing logic built-in-self-tests (LBISTs) in digital circuits, where scan shift operations of the LBIST circuitry are performed at reduced rates. In one embodiment, a base clock signal is gated before being provided to LBIST circuitry. The clock signal is gated to produce an effective clock rate that is reduced in one or more steps from a first rate that is used in a functional phase of LBIST testing to a reduced rate that is used in a scan shift phase. The effective clock rate is stepped back up at the end of the scan shift phase to the first rate which is used in the following functional phase.


Find Patent Forward Citations

Kiryu, Naoki. (2007). Programmable scan shift speed control for lbist (U.S. Patent No. 7266745). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7266745

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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