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:
Mar. 27, 2001
Filed:
Jun. 02, 1999
Cheng-Yuan Michael Wang, San Jose, CA (US);
Andreas M. Haeberli, Campbell, CA (US);
Carl W. Werner, San Jose, CA (US);
Sau C. Wong, Hillsborough, CA (US);
Hock C. So, Redwood City, CA (US);
Leon Sea Jiunn Wong, Sunnyvale, CA (US);
SanDisk Corporation, Sunnyvale, CA (US);
Abstract
An integrated circuit stores analog or digital information, or both, in memory cells (,). The memory cells provide analog or multilevel storage. Analog information is provided through an analog signal input (,), and digital information is provided through a digital signal input (,). A scheme for storing digital information is consistent with the scheme used to store analog information. Data is retrieved from the memory cells, and output to the analog or digital signal output (,) depending on the type of data. A digital reference generator reference generator (,) generates various analog equivalent voltages for the digital signal input.