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:
Sep. 11, 2007
Filed:
Sep. 18, 2002
Hidetaka Magoshi, Palo Alto, CA (US);
Hidetaka Magoshi, Palo Alto, CA (US);
Abstract
Methods and apparatus for producing an electronic ID number include modifying at least one physical bit element from among each of at least first and second groups of physical bit elements, each physical bit element of each group having a first physical state in which it is operable to produce a signal having a first electrical state, and being capable of permanent modification to a second physical state in which it is operable to produce a signal having a second electrical state; and producing (i) one bit of an identification (ID) number from the respective signals issuing from each of the respective at least first and second groups of physical bit elements, and (ii) a validity signal indicative of whether the one bit of the ID number is valid.