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. 22, 2007
Filed:
Jul. 21, 2005
Masaaki Hara, Tokyo, JP;
Nobumichi Okazaki, Kanagawa, JP;
Masaaki Hara, Tokyo, JP;
Nobumichi Okazaki, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An arithmetic circuit is provided having a compact and high-speed logic-in-memory wherein various operations are performed. The arithmetic circuit includes a memory element having a variable resistance element R in which the state of resistance changes reversibly between the state of high resistance and the state of low resistance by applying voltages with different polarities between one electrode and the other electrode, and at least one transistor of MRD, MRS, MWand MWconnected respectively to both ends of the memory element; wherein data is stored in the memory element, the operation for the external data X, W, Yand Yinput through any of the transistors is performed by applying potential to each of the ends of the memory element through the transistors MRD, MRS, MW, and MW, and a result of the operation is output from the memory element.