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. 11, 2021
Filed:
Feb. 06, 2020
Apple Inc., Cupertino, CA (US);
Jaemyung Lim, Sunnyvale, CA (US);
Jiangyi Li, Santa Clara, CA (US);
Mohamed H. Abu-Rahma, Mountain View, CA (US);
Shahzad Nazar, Fremont, CA (US);
Jaroslav Raszka, San Jose, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Memory circuits used in computer systems may have different operating modes. In a retention mode, a voltage level of an array power supply node coupled to memory cells included in the memory circuit is reduced to a level sufficient to retain data, but not to perform read and write operations to the memory cells. A power converter circuit may be configured to generate the retention voltage level, and adjust the retention voltage level using a leakage current of dummy memory cells included in the memory circuit.