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:
Mar. 05, 2013
Filed:
Dec. 22, 2010
Roger A. Fratti, Mohnton, PA (US);
Roger A. Fratti, Mohnton, PA (US);
LSI Corporation, San Jose, CA (US);
Abstract
A tamper pool RFID tag apparatus, system and method for keying the RFID tag in association with an object. An oscillator circuit configured on an RFID tag substrate enables the RFID tag to be keyed with respect to the object. One or more capacitors that are operatively connected in association with the RFID tag substrate via a substrate vias determine an oscillator frequency pulse when placed on the object. A comparator compares the oscillator frequency pulse with a predetermined pulse count stored in a latch/storing unit. The RFID tag circuit can accept the object in, for example, a vending machine, if the frequency pulse matches the predetermined pulse count in order to effectively handle object returns in a wide range of commercial applications.