Method for communicating with RF transponders
DCFirst Claim
Patent Images
1. A method for communicating between a base station and a set of radio frequency RF transponders (Tags) comprising:
- defining a plurality of RF tags into different groups according to a physical wave characteristic of the electromagnetic wave energy received from the RF tags, andcommunicating with the tags in each defined group.
0 Assignments
Litigations
0 Petitions
Accused Products
Abstract
A method of selecting groups of radio frequency RF transponders (tags) for communication between a base station and the tags. The tags are selected into groups according to a physical attribute of the signal sent by the tags to the base station, or according to the physical response of the tags to a physical attribute of the signal sent from the base station to the tags. Communication with the tags is thereby simplified, and the time taken to communicate with the first tag is markedly reduced.
214 Citations
18 Claims
-
1. A method for communicating between a base station and a set of radio frequency RF transponders (Tags) comprising:
-
defining a plurality of RF tags into different groups according to a physical wave characteristic of the electromagnetic wave energy received from the RF tags, and communicating with the tags in each defined group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. An RF tag base station comprising
a computer a transmitter a receiver, and at least one antenna, wherein the RF tag base station communicates with a plurality of RF tags by: -
interrogating the RF tags with electromagnetic energy, grouping the RF tags according to a physical characteristic of their responsive electromagnetic signals, and reading the RF tags in each group. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. An RF tag unit reading unit comprising:
-
a computer; a transmitter; a receiver; and at least one antenna; wherein the RF tag reading unit communicates with a plurality of RF tags by; interrogating the RF tags with electromagnetic energy; grouping the RF tags according to a physical characteristic of their responsive electromagnetic signals, and reading the RF tags in each group.
-
Specification