Efficient memoryless protocol for tag identification

Details Efficient memoryless protocol for tag identification Efficient memoryless protocol for tag identification

2005-02-22

2005-02-22

Kindred, Alford W. (Department: 2177)

Data processing: database and file management or data structures

Database design

Data structure types

C340S010320, C342S436000

Reexamination Certificate

active

06859801

ABSTRACT:
The invention features a method and system for identifying a plurality of tags using an efficient memoryless protocol. The system includes a reader and a plurality of tags. The reader is adapted to maintain an ordered set of query strings; select a string from the set of query strings; broadcast a query message containing the selected string or a portion of the selected string to the tags; and receive a response from one of the tags. The tags operate without batteries and are adapted to respond to the selected string broadcast by the reader. Accordingly, the tag identification methods are efficient in terms of both time and communication complexities.

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