Multiple RFID anti-collision interrogation method
First Claim
Patent Images
1. A method of selectively identifying at least one RFID tag from another RFID during interrogation of a plurality of RFID tags comprising:
- transmitting an interrogation signal to one or more RFID tags in a plurality of RFID tags;
identifying a tag of interest by a unique identifier associated with the tag of interest;
turn off all tags being interrogated;
turn on the tag of interest by the unique identifier; and
acquire data associated with the tag of interest after interrogating the tag.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and system to selectively identify one RFID tag response from a plurality of RFID tag responses. An interrogation signal is transmitted. If more than one RFID tag response is detected a signal is transmitted that can disable all responding tags, or all responding tags except the tag or tags of interest. The tag of interest, if not already enabled, is enabled and interrogated.
29 Citations
12 Claims
-
1. A method of selectively identifying at least one RFID tag from another RFID during interrogation of a plurality of RFID tags comprising:
-
transmitting an interrogation signal to one or more RFID tags in a plurality of RFID tags;
identifying a tag of interest by a unique identifier associated with the tag of interest;
turn off all tags being interrogated;
turn on the tag of interest by the unique identifier; and
acquire data associated with the tag of interest after interrogating the tag. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of selectively interrogating an RFID tag in a plurality of RFID tags comprising:
-
detecting more than one tag response to an RFID tag interrogation signal;
transmitting a signal to terminate all unwanted RFID tag responses;
transmitting another signal to enable at least one RFID tag of interest; and
interrogating the at least one RFID tag of interest. - View Dependent Claims (9, 10, 11, 12)
-
Specification