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:
Dec. 26, 2000
Filed:
Aug. 27, 1996
Paul E Cohen, San Jose, CA (US);
NEC Electronics, Inc., Mountain View, CA (US);
Abstract
A device that broadcasts an electronic serial number, or ESN, is made secure from cloning using one or more of a plurality of measures, including coupling the memory used for storing the ESN more closely to the ESN processor, fabricating the ESN memory as part of the ESN processor, including the ESN memory in another processor and encrypting communications between the other processor and the ESN processor, and comparing multiple copies of the ESN stored in different memories. The later technique is also effective in securing the JTAG port of an ESN processor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile