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:
Jan. 20, 1998
Filed:
Apr. 01, 1996
Roger J Bettman, Los Altos, CA (US);
S Babar Raza, Sunnyvale, CA (US);
Donald Yu, Fremont, CA (US);
Donald A Krall, Cupertino, CA (US);
Anita X Meng, Milpitas, CA (US);
Christopher S Norris, Morgan Hill, CA (US);
Cyrpress Semiconductor Corporation, San Jose, CA (US);
Abstract
The present invention provides a circuit for supplying a verifying reference and measurement voltage for use in verifying the programming of a programmable cell. The present invention provides the verifying reference and measurement voltage through internal circuitry on the cell and eliminate any requirement for an externally provided reference voltage. The verifying voltage is provided by modifying the programming voltage. The programming voltage is stepped down or stepped up through the use of internal circuitry to provide the reference and measurement voltage.