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. 20, 2019
Filed:
Dec. 13, 2018
Hiroshi Watanabe, Kanagawa-ken, JP;
Hiroshi Watanabe, Kanagawa-ken, JP;
Other;
Abstract
A method of using a chip identification device is jointly performed by a chip mass-produced by a semiconductor manufacturing process, a first chip manufacturer making the chip, and a chip user assembling a product by using the chip. The method includes inputting a first published passcode, published by the first chip manufacturer, inputting a second published passcode published by a second chip manufacturer, inputting the first published passcode to the chip by the chip user, reading an aggregate of electronic output signals as a read code, sending the read code to the first chip manufacturer to compare the first output code and the read code. The chip is regarded as a counterfeit if the comparison is consistent.