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. 14, 1997
Filed:
Oct. 27, 1994
Applicant:
Inventor:
Yvon Bahout, Fuveau, FR;
Assignee:
SGS-Thomson Microelectronics, S.A., Gentilly Cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
380-4 ; 364D / ; 364D / ; 3642468 ; 364969 ;
Abstract
To provide efficient protection, in reading mode, of the stored data elements, the integrated circuit has an EEPROM type memory and a lock (L) protecting the zone of the memory. The memory contains a read-protected password (PW) and the circuit has means to release the lock (L) if the circuit receives a write command at the address of the password of the same encrypted password (PW). Application notably to electronic systems and instruments using confidential codes, such as car radios.
Bahout, Yvon. (1997). Integrated circuit containing a protected memory and secured system (U.S. Patent No. 5594793). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5594793
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile