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:
Mar. 26, 2013
Filed:
Aug. 17, 2011
Erik Ordentlich, San Jose, CA (US);
Ron M. Roth, Haifa, IL;
Erik Ordentlich, San Jose, CA (US);
Ron M. Roth, Haifa, IL;
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A method for encoding data to be placed into a weight constrained memory array includes designating a set of crosspoints within a crossbar memory array as indicator crosspoints and a set of crosspoints within the memory array as data crosspoints, the set of indicator crosspoints selected so that a net number of times that each data crosspoint has been flipped can be determined from a subset of the set of indicator crosspoints, placing an input stream of data into a matrix corresponding to crosspoints within the memory array, bits of the input stream being placed into matrix elements that correspond to data crosspoints of the memory array, setting each matrix element corresponding to indicator crosspoints to a value corresponding to a fixed resistive state, and flipping each bit corresponding to a conductor of the memory array until no conductors within the memory array violate a weight constraint.