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:
Sep. 06, 2016
Filed:
Feb. 12, 2013
Tien-chun Yang, San Jose, CA (US);
Yue-der Chih, Hsinchu, TW;
Chan-hong Chern, Palo Alto, CA (US);
Tao Wen Chung, San Jose, CA (US);
Tien-Chun Yang, San Jose, CA (US);
Yue-Der Chih, Hsinchu, TW;
Chan-Hong Chern, Palo Alto, CA (US);
Tao Wen Chung, San Jose, CA (US);
Abstract
A sensing circuit includes a sensing resistor, a reference resistor and a comparator. The comparator has a first input coupled to the sensing resistor, a second input coupled to the reference resistor, and an output. The first input is configured to be coupled to a data bit line associated with a memory cell to receive a sensing input voltage caused by a cell current of the memory cell flowing through the sensing resistor. The second input is configured to be coupled to a reference bit line associated with a reference cell to receive a sensing reference voltage caused by a reference current of the reference cell flowing through the reference resistor. The comparator is configured to generate, at the output, an output signal indicating a logic state of data stored in the memory cell based on a comparison between the sensing input voltage and the sensing reference voltage.