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:
Jul. 18, 2006
Filed:
Sep. 20, 2002
Kannan Srinivasagam, Sunnyvale, CA (US);
Rajesh Manapat, San Jose, CA (US);
Mario Martinez, Los Gatos, CA (US);
Kannan Srinivasagam, Sunnyvale, CA (US);
Rajesh Manapat, San Jose, CA (US);
Mario Martinez, Los Gatos, CA (US);
Cypress Semiconductor Corp., San Jose, CA (US);
Abstract
A static random-access memory (SRAM) provides volatile storage of data in a cellular telephone. Connected to the volatile SRAM is a second SRAM that provides nonvolatile storage of data by backup battery means. Writing and reading of either volatile or nonvolatile data can occur. Additionally, provision is made to automatically back up data written to the volatile SRAM in the nonvolatile SRAM, as well as to streamline restoration of backed-up data from the nonvolatile SRAM to the volatile SRAM.