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.

Date of Patent:
Jul. 12, 2011

Filed:

Jul. 31, 2007
Applicant:

Anton I. Sabev, Santa Clara, CA (US);

Inventor:

Anton I. Sabev, Santa Clara, CA (US);

Assignee:

LSI Corporation, Milpitas, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/26 (2006.01); G06F 11/00 (2006.01); G06F 9/00 (2006.01); G06F 9/24 (2006.01); G06F 15/177 (2006.01); G08B 13/00 (2006.01); G08B 21/00 (2006.01); G08B 29/00 (2006.01); H04K 1/00 (2006.01); H04L 9/00 (2006.01); B41K 3/38 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of manufacturing a device containing a key is disclosed. The method generally includes the steps of (A) fabricating a chip comprising a random number generator, a nonvolatile memory and a circuit, (B) applying electrical power to the chip to cause the random number generator to generate a signal conveying a sequence of random numbers, (C) commanding the chip to program a first arbitrary value among the random numbers into the nonvolatile memory, wherein the device is configured such that the first arbitrary value as stored in the nonvolatile memory is unreadable from external to the device and (D) packaging the chip.


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