RFID device with changeable characteristics
First Claim
1. A radio frequency identification (RFID) device comprising:
- a substrate;
a transponder chip; and
an antenna coupled to the chip;
wherein the chip is part of an antennaless device coupled to the antenna;
wherein the antennaless device and the antenna are decoupled upon occurrence of a predetermined event;
wherein the antennaless device remains readable when decoupled from the antenna;
wherein the device includes an alterable portion that is altered upon a predetermined event; and
wherein the alterable portion includes substantially all of a substrate of the device.
2 Assignments
0 Petitions
Accused Products
Abstract
An RFID device includes a first, relatively permanent portion and a second alterable or inactivatable portion. Upon the occurrence of some predetermined event, the second portion and/or its coupling to the first portion is physically altered, inactivating it. The first portion may itself be an antennaless RFID device that may be read at short range, and the second portion may be an antenna that, when coupled to the first portion, substantially increases the range at which the first portion may be read. The second portion may be configured to be altered or inactivated by any of a variety of predetermined events, such as involving physical, chemical or electrical forces, performed either on the RFID device, or upon an object to which the RFID device is coupled.
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Citations
20 Claims
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1. A radio frequency identification (RFID) device comprising:
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a substrate; a transponder chip; and an antenna coupled to the chip; wherein the chip is part of an antennaless device coupled to the antenna; wherein the antennaless device and the antenna are decoupled upon occurrence of a predetermined event; wherein the antennaless device remains readable when decoupled from the antenna; wherein the device includes an alterable portion that is altered upon a predetermined event; and wherein the alterable portion includes substantially all of a substrate of the device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification