Methods and apparatuses to identify devices
First Claim
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1. A method of identifying tags, the method comprising:
- issuing a first set of commands of a first type in a first inventory process to identify tags in a first group of tags which are in a first state and to place the identified tags in a second group of tags, which are in a second state, which are addressable by a second set of commands of a second type, wherein the first group of tags do not respond to the second set of commands of the second type;
issuing the second set of commands of the second type in a second inventory process to identify tags in the second group of tags in the second state and to place the identified tags in the first group of tags which respond to the first set of commands of the first type and wherein the second group of tags do not respond to the first set of commands of the first type, and wherein the second inventory process is similar to the first inventory process;
issuing a third command in the first set of commands of the first type to address tags in the first group of tags in the first state, wherein the third command in the first set of commands of the first type causes addressed tags to be placed in the third group of tags in a third state; and
issuing a fourth command in the second set of commands of the second type to address tags in the second group of tags in the second state, wherein the fourth command in the second set of commands of the second type causes addressed tags to be placed in the third group of tags in the third state.
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Abstract
An apparatus and method to identify devices including a first set of commands to identify devices in a first state and a second set of commands to identify devices in a second state, wherein devices identified in the first state are placed in the second state and devices identified in the second state are placed in the first state.
164 Citations
24 Claims
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1. A method of identifying tags, the method comprising:
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issuing a first set of commands of a first type in a first inventory process to identify tags in a first group of tags which are in a first state and to place the identified tags in a second group of tags, which are in a second state, which are addressable by a second set of commands of a second type, wherein the first group of tags do not respond to the second set of commands of the second type; issuing the second set of commands of the second type in a second inventory process to identify tags in the second group of tags in the second state and to place the identified tags in the first group of tags which respond to the first set of commands of the first type and wherein the second group of tags do not respond to the first set of commands of the first type, and wherein the second inventory process is similar to the first inventory process; issuing a third command in the first set of commands of the first type to address tags in the first group of tags in the first state, wherein the third command in the first set of commands of the first type causes addressed tags to be placed in the third group of tags in a third state; and issuing a fourth command in the second set of commands of the second type to address tags in the second group of tags in the second state, wherein the fourth command in the second set of commands of the second type causes addressed tags to be placed in the third group of tags in the third state. - View Dependent Claims (2, 3, 4)
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5. A method performed in a tag, the method comprising:
receiving at a tag in a first state a first set of commands of a first type issued in a first inventory process to identify the tag in a first group of tags in the first state and to place the identified tag in the first state in a second state in a second group of tags in the second state, which are addressable by a second set of commands of a second type, wherein the second group of tags in the second state do not respond to the first set of commands of the first type; receiving at a tag in the second state the second set of commands of the second type issued in a second inventory process to identify the tag in the second group of tags in the second state and to place the identified tag in the second state in the first state in the first group of tags in the first state, which are addressable by the first set of commands of the first type, wherein the first group of tags in the first state do not respond to the second set of commands of the second type, and wherein the second inventory process is similar to the first inventory process; receiving at the tag in the first state a third command in the first set of commands of the first type, wherein the third command in the first set of commands of the first type causes the tag to be placed in a third state in the third group of tags; and receiving at the tag in the second state a fourth command in the second set of commands of the second type, wherein the fourth command in the second set of commands of the second type causes the tag to be placed in the third state in the third group of tags. - View Dependent Claims (6)
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7. A non-transitory machine readable medium containing executable computer programming instructions, which when executed by a data processing system, cause the data processing system to perform a method for identifying tags, the method comprising:
issuing a first set of commands of a first type in a first inventory process to identify tags in a first group of tags which are in a first state and to place the identified tags in a second group of tags, which are in a second state, which are addressable by a second set of commands of a second type, wherein the first group of tags do not respond to the second set of commands of the second type; issuing the second set of commands of the second type in a second inventory process to identify tags in the second group of tags in the second state and to place the identified tags in the first group of tags which respond to the first set of commands of the first type and wherein the second group of tags do not respond to the first set of commands of the first type, and wherein the second inventory process is similar to the first inventory process; issuing a third command in the first set of commands of the first type to address tags in the first group of tags in the first state, wherein the third command in the first set of commands of the first type causes addressed tags to be placed in the third group of tags in a third state; and issuing a fourth command in the second set of commands of the second type to address tags in the second group of tags in the second state, wherein the fourth command in the second set of commands of the second type causes addressed tags to be placed in the third group of tags in the third state. - View Dependent Claims (8, 9, 10)
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11. A non-transitory machine readable medium containing executable computer programming instructions, which when executed by a data processing system, cause the data processing system to perform a method performed in a tag, the method comprising:
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receiving at a tag in a first state a first set of commands of a first type issued in a first inventory process to identify the tag in a first group of tags in the first state and to place the identified tag in the first state in a second state in a second group of tags in the second state, which are addressable by a second set of commands of a second type, wherein the second group of tags in the second state do not respond to the first set of commands of the first type; receiving at a tag in the second state the second set of commands of the second type issued in a second inventory process to identify the tag in the second group of tags in the second state and to place the identified tag in the second state in the first state in the first group of tags in the first state, which are addressable by the first set of commands of the first type, wherein the first group of tags in the first state do not respond to the second set of commands of the second type, and wherein the second inventory process is similar to the first inventory process; receiving at the tag in the first state a third command in the first set of commands of the first type, wherein the third command in the first set of commands of the first type causes the tag to be placed in a third state in the third group of tags; and receiving at the tag in the second state a fourth command in the second set of commands of the second type, wherein the fourth command in the second set of commands of the second type causes the tag to be placed in the third state in the third group of tags. - View Dependent Claims (12)
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13. An apparatus to identify tags, comprising:
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a memory, and a processor coupled to the memory, the processor configured to issue a first set of commands of a first type in a first inventory process to identify tags in a first group of tags which are in a first state and to place the identified tags in a second group of tags, which are in a second state, which are addressable by a second set of commands of a second type, wherein the first group of tags do not respond to the second set of commands of the second type; the processor configured to issue the second set of commands of the second type in a second inventory process to identify tags in the second group of tags in the second state and to place the identified tags in the first group of tags which respond to the first set of commands of the first type and wherein the second group of tags do not respond to the first set of commands of the first type, and wherein the second inventory process is similar to the first inventory process; the processor configured to issue a third command in the first set of commands of the first type to address tags in the first group of tags in the first state, wherein the third command in the first set of commands of the first type causes addressed tags to be placed in a third group of tags in the third state; and the processor configured to issue a fourth command in the second set of commands of the second type to address tags in the second group of tags in the second state, wherein the fourth command in the second set of commands of the second type causes addressed tags to be placed in the third group of tags in the third state. - View Dependent Claims (14, 15, 16)
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17. A tag comprising:
a memory, and a processor coupled to the memory, the processor configured to receive at the tag in a first state a first set of commands of a first type issued in a first inventory process to identify the tag in a first group of tags in the first state and to place the identified tag in the first state in a second state in a second group of tags in the second state, which are addressable by a second set of commands of a second type, wherein the second group of tags in the second state do not respond to the first set of commands of the first type, the processor configured to receive at the tag in the second state the second set of commands of the second type issued in a second inventory process to identify the tag in the second group of tags in the second state and to place the identified tag in the second state in the first state in the first group of tags in the first state, which are addressable by the first set of commands of the first type, wherein the first group of tags in the first state do not respond to the second set of commands of the second type, and wherein the second inventory process is similar to the first inventory process, the processor configured to receive at the tag in the first state a third command in the first set of commands of the first type, wherein the third command in the first set of commands of the first type causes the tag to be placed in a third state in the third group of tags, and the processor configured to receive at the tag in the second state a fourth command in the second set of commands of the second type, wherein the fourth command in the second set of commands of the second type causes the tag to be placed in the third state in the third group of tags. - View Dependent Claims (18)
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19. An apparatus to identify tags, comprising:
means for issuing a first set of commands of a first type in a first inventory process to identify tags in a first group of tags which are in a first state and to place the identified tags in a second group of tags, which are in a second state, which are addressable by a second set of commands of a second type, wherein the first group of tags do not respond to the second set of commands of the second type; means for issuing the second set of commands of the second type in a second inventory process to identify tags in the second group of tags in the second state and to place the identified tags in the first group of tags which respond to the first set of commands of the first type and wherein the second group of tags do not respond to the first set of commands of the first type, and wherein the second inventory process is similar to the first inventory process; means for issuing a third command in the first set of commands of the first type to address tags in the first group of tags in the first state, wherein the third command in the first set of commands of the first type causes addressed tags to be placed in the third group of tags in the third state; and means for issuing a fourth command in the second set of commands of the second type to address tags in the second group of tags in the second state, wherein the fourth command in the second set of commands of the second type causes addressed tags to be placed in the third group of tags in the third state. - View Dependent Claims (20, 21, 22)
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23. A tag comprising:
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means for receiving at the tag in a first state a first set of commands of a first type issued in a first inventory process to identify the tag in a first group of tags in the first state and to place the identified tag in the first state in a second state in a second group of tags in the second state, which are addressable by a second set of commands of a second type, wherein the second group of tags in the second state do not respond to the first set of commands of the first type; means for receiving at the tag in the second state the second set of commands of the second type issued in a second inventory process to identify the tag in the second group of tags in the second state and to place the identified tag in the second state in the first state in the first group of tags in the first state, which are addressable by the first set of commands of the first type, wherein the first group of tags in the first state do not respond to the second set of commands of the second type, and wherein the second inventory process is similar to the first inventory process; means for receiving at the tag in the first state a third command in the first set of commands of the first type, wherein the third command in the first set of commands of the first type causes the tag to be placed in the third state in the third group of tags; and means for receiving at the tag in the second state a fourth command in the second set of commands of the second type, wherein the fourth command in the second set of commands of the second type causes the tag to be placed in the third state in the third group of tags. - View Dependent Claims (24)
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Specification