Method of securing a deactivation of a rfid transponder
First Claim
1. A method of securing a transponder against undesirable manipulation, which transponder is combined with a product, contains a product code which is significant for the product, and is constructed for wireless communication with a communication station, in which method at least one change of state is carried out, the transponder being set, during a first step of the method involving a first state of change, from an initial state to a first safety state when the product undergoes a transfer from a first product location area to a second product location area, via a safety state activation zone which includes a communication station, and in which method, if the transponder has been set to the first safety state due to the transfer, the transponder is set to a second safety state, if desired, during a second step of the method in which a second change of state is carried out.
2 Assignments
0 Petitions
Accused Products
Abstract
A transponder (10) which is combined with a product and contains a product code which is significant for the product can be set to a first safety state when the product undergoes a transfer from a first product location area to a second product location area, via a safety state activation zone which includes a communication station, and can be set to a second safety state if the transponder has been set to the first safety state. A transponder (10) set to the second safety state can be permanently deactivated.
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Citations
15 Claims
- 1. A method of securing a transponder against undesirable manipulation, which transponder is combined with a product, contains a product code which is significant for the product, and is constructed for wireless communication with a communication station, in which method at least one change of state is carried out, the transponder being set, during a first step of the method involving a first state of change, from an initial state to a first safety state when the product undergoes a transfer from a first product location area to a second product location area, via a safety state activation zone which includes a communication station, and in which method, if the transponder has been set to the first safety state due to the transfer, the transponder is set to a second safety state, if desired, during a second step of the method in which a second change of state is carried out.
- 8. A transponder which is intended to be combined with a product, is constructed for wireless communication with a communication station, includes storage means for storing a product code which is significant for the product, is constructed for carrying out at least one state of change, and includes first state changing means by means of which the transponder can be set from an initial state to a first safety state if the product with which the transponder is combined is transferred from a first product location area to a second product location area, via a safety state activation zone which includes a communication station, and also includes second state changing means by means of which the transponder can be set to a second safety state if the transponder has been set to the first safety state.
- 12. An integrated circuit for a transponder which is intended to be combined with a product and is constructed for wireless communication with a communication station, which integrated circuit includes storage means for storing a product code which is significant for the product and for carrying out at least one change of state, and includes first state changing means by means of which the integrated circuit can be set from an initial state to a first safety state if the product with which the transponder is combined is transferred from a first product location area to a second product location area, via a safety state activation zone which comprises a communication station, and also includes second state changing means by means of which the integrated circuit can be set to a second safety state if the integrated circuit has been set to the first safety state.
Specification