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:
May. 06, 2014
Filed:
Nov. 09, 2011
Benjamin Vigoda, Winchester, MA (US);
David Reynolds, Scarborough, ME (US);
Benjamin Vigoda, Winchester, MA (US);
David Reynolds, Scarborough, ME (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
In one aspect, a storage device includes a plurality of storage strings, each comprising a serial interconnection of a plurality of active storage elements, each storage element having a part for maintaining a storage state and a part of modulating a current through the element according to the storage state. The device also includes mapping circuitry for selectively sensing a storage state of a storage element in a storage string by forming current though the storage element that is a non-linear function of the storage state. In some examples, the mapping circuitry comprises reference string of active elements, and the mapping circuitry selectively senses a storage state by forming a difference in currents in the sensed storage string and in the reference string that is a non-linear function of the storage state. In some examples, the active storage elements comprise floating gate transistors.