METHOD FOR SEARCHING A PLURALITY OF RFID TAGS AND APPARATUS THEREOF
First Claim
1. An RFID reader, for searching a plurality of RFID tags each having an UID composed of a plurality of bits, the RFID reader comprising:
- a control unit configured to divide the plurality of bits into a plurality of groups each having n bits, and select a first group from the groups and a first value for the first group, wherein n is a positive integer greater than 1;
a communication protocol processing module, coupled to the control unit, configured to generate a search command according to the first group and the first value, wherein the RFID reader obtains a search result according to the search command and the UIDs of the RFID tags; and
an analyzing module, coupled to the communication protocol processing module and the control unit, configured to analyze the search result to determine whether at least one RFID tag corresponds to the first group and the first value.
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Accused Products
Abstract
A method for searching RFID tags and an RFID reader thereof are provided. Each of a plurality of RFID tags awaiting to be accessed has a UID composed of a plurality of bits. The method comprises dividing the plurality of bits of the UID into groups to generate a plurality of groups; selecting a first group and a first value for the first group; obtaining a search result according to a search command and the UIDs of the RFID tags; and analyzing the search result to determine whether at least one RFID tag corresponds to the first group and the first value. Each of the groups has n bits, where n is a positive integer greater than or equal to 1.
20 Citations
19 Claims
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1. An RFID reader, for searching a plurality of RFID tags each having an UID composed of a plurality of bits, the RFID reader comprising:
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a control unit configured to divide the plurality of bits into a plurality of groups each having n bits, and select a first group from the groups and a first value for the first group, wherein n is a positive integer greater than 1; a communication protocol processing module, coupled to the control unit, configured to generate a search command according to the first group and the first value, wherein the RFID reader obtains a search result according to the search command and the UIDs of the RFID tags; and an analyzing module, coupled to the communication protocol processing module and the control unit, configured to analyze the search result to determine whether at least one RFID tag corresponds to the first group and the first value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for searching a plurality of RFID tags each having a UID composed of a plurality of bits, the method comprising:
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dividing the bits into a plurality of groups each having n bits, wherein n is a positive integer greater than or equal to 1; selecting a first group of the groups and a first value for the first group; generating a search command according to the first group and the first value, wherein a search result is obtained according to the search command and UIDs of the RFID tags; and analyzing the search result to determine whether at least one RFID tag corresponds to the first group and the first value. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification