INTERACTIVE RADIO FREQUENCY TAGS
First Claim
1. An interactive radio frequency tag apparatus, comprising:
- a passive radio frequency transponder, including,an antenna,an interface for receiving an external stimulus, andone or more integrated circuits responsive to an external stimulus received at said interface to change the state of said transponder.
0 Assignments
0 Petitions
Accused Products
Abstract
Interactive radio frequency tags that are responsive to external stimuli to change state are disclosed. The tags preferably include a passive radio frequency transponder, having an antenna, an interface for receiving an external stimulus, and one or more integrated circuits responsive to the external stimulus received at the interface to change the state of the transponder. Also disclosed is a “sensor tag” which changes state in response to a particular environmental stimulus. In addition, either of these “button” or “sensor” features may be combined with an output feature which visually, audibly, tactilely or otherwise signals the state or change of state of an RF tag, or the tag may be designed to produce an output in response to the external stimulus of the RF signal received at the tag'"'"'s antenna.
-
Citations
20 Claims
-
1. An interactive radio frequency tag apparatus, comprising:
a passive radio frequency transponder, including, an antenna, an interface for receiving an external stimulus, and one or more integrated circuits responsive to an external stimulus received at said interface to change the state of said transponder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
12. A method of changing the response provided by a polled radio frequency tag, comprising:
-
providing an interactive radio frequency tag apparatus, having, a passive radio frequency transponder, including, an antenna, an interface for receiving an external stimulus, and one or more integrated circuits responsive to an external stimulus received at said interface to change the state of said transponder; and applying an external stimulus to said interface to change the state of said transponder. - View Dependent Claims (13, 14, 15, 16, 17, 18)
-
-
19. A radio frequency tag apparatus, having,
a passive radio frequency transponder, including, an antenna, an integrated circuit; an output device responsive to a radio frequency signal received at said antenna to generate an output signal. - View Dependent Claims (20)
Specification