Method and apparatus to facilitate setting RFID tags to a particular read state
First Claim
Patent Images
1. An apparatus for use with radio-frequency identification (RFID) tags having selectively changeable read states, the apparatus comprising:
- a wireless transmitter configured to transmit compatibly to the RFID tags;
a control circuit operably coupled to the wireless transmitter and configured to use the wireless transmitter to transmit to the RFID tags a message to cause the RFID tags to have a particular read state without soliciting a response from any RFID tag, wherein the particular read state specifies, at least in part, whether to respond to a read request.
2 Assignments
0 Petitions
Accused Products
Abstract
A wireless transmitter is configured to transmit compatibly to RFID tags and a control circuit operably couples to that wireless transmitter and is configured to use the wireless transmitter to transmit to those RFID tags a message to cause the RFID tags to have a particular read state without also soliciting a corresponding response from any of those RFID tags. For example, this can comprise causing RFID tags having a B inventory state to switch to an A inventory state (while permitting RFID tags already having an A inventory state to so remain).
12 Citations
23 Claims
-
1. An apparatus for use with radio-frequency identification (RFID) tags having selectively changeable read states, the apparatus comprising:
-
a wireless transmitter configured to transmit compatibly to the RFID tags; a control circuit operably coupled to the wireless transmitter and configured to use the wireless transmitter to transmit to the RFID tags a message to cause the RFID tags to have a particular read state without soliciting a response from any RFID tag, wherein the particular read state specifies, at least in part, whether to respond to a read request. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method for use with radio-frequency identification (RFID) tags having selectively changeable read states, the method comprising:
- at a control circuit;
using a wireless transmitter to transmit to the RFID tags a message to cause the RFID tags to have a particular read state without soliciting a response from any RFID tag, wherein the particular read state specifies, at least in part, whether to respond to a read request. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
- at a control circuit;
Specification