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:
Aug. 08, 2000
Filed:
May. 15, 1997
Mark Leonard Buer, Chandler, AZ (US);
VLSI Technology, Inc., San Jose, CA (US);
Abstract
To perform a secure operation, an original encrypted value is obtained from a memory. The original encrypted value is decrypted to obtain an original value and an original validity code. The original validity code is compared with a stored validity code. If the original validity code is equivalent to the stored validity code, the secure operation is performed on the original value to produce a new value. Then a permanent alteration is made to the stored validity code to produce a new stored validity code. The new value and the new stored validity code are encrypted to produce a new encrypted value. The new encrypted value is stored in the memory.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile