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:
Dec. 30, 2014
Filed:
Nov. 01, 2010
Applicant:
Robert J Brooks, Fort Collins, CO (US);
Inventor:
Robert J Brooks, Fort Collins, CO (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01); G11C 7/06 (2006.01); G11C 7/22 (2006.01); G11C 13/00 (2006.01); G11C 7/10 (2006.01); G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
G11C 13/0069 (2013.01); G11C 7/1015 (2013.01); G11C 7/00 (2013.01);
Abstract
Methods and apparatus are provided for use with data storage elements. A ring oscillator is coupled to a selected element within an array such that a feedback loop is defined. A period at oscillation for the ring oscillator is compared to a reference value. A data value stored within the selected element is determined accordingly. Stored data values remain essentially unaltered when accessed and read by way of the ring oscillator. Memory arrays having memristor or other storage elements can be used according to the present teachings.