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:
Jun. 21, 2005
Filed:
Sep. 06, 2002
Steven P. Korson, Bruckberg, DE;
Brian D. Borchers, Wylie, TX (US);
Bryan Sheffield, Rowlett, TX (US);
Clive Bittlestone, Lucas, TX (US);
Doug Counce, McKinney, TX (US);
Steven P. Korson, Bruckberg, DE;
Brian D. Borchers, Wylie, TX (US);
Bryan Sheffield, Rowlett, TX (US);
Clive Bittlestone, Lucas, TX (US);
Doug Counce, McKinney, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An embodiment of the invention is a method for measuring access time where the frequency of a ring oscillator is measured with and without a device under testin the ring. Those two frequencies are compared to calculate the access time of the device under test. Another embodiment of the invention is circuitrythat measures the frequency of a ring oscillator with and without a device under test. Again the two frequencies are compared to calculate the access time of the device under test