Method and apparatus for handling signpost signals in a tag
First Claim
Patent Images
1. An apparatus comprising a tag having circuitry that includes:
- a receiver section configured to receive wireless signpost signals that each include a signpost code;
a further section responsive to receipt by said receiver section of a signpost signal for saving information relating to the signpost that generated the signpost signal; and
a transmitter section operable to transmit wireless tag signals that each include a tag code associated with said tag, said transmitter section being responsive to receipt by said receiver section of a signpost signal for including first and second information portions in at least one said tag signal, said first information portion relating to one signpost that generated the received signpost signal, and said second information portion relating to a further signpost that generated a preceding signpost signal received by said receiver section.
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Accused Products
Abstract
A tag stores information identifying the sequence in which it received wireless signpost signals from different signposts. In another configuration, a tag maintains data identifying a group of signposts that are to be treated as equivalent. In yet another configuration, wireless signpost signals transmitted by each of a plurality of signposts all contain the same signpost code. In still another configuration, a signpost has an interface through which a signpost code of the signpost can be selectively set.
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Citations
36 Claims
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1. An apparatus comprising a tag having circuitry that includes:
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a receiver section configured to receive wireless signpost signals that each include a signpost code;
a further section responsive to receipt by said receiver section of a signpost signal for saving information relating to the signpost that generated the signpost signal; and
a transmitter section operable to transmit wireless tag signals that each include a tag code associated with said tag, said transmitter section being responsive to receipt by said receiver section of a signpost signal for including first and second information portions in at least one said tag signal, said first information portion relating to one signpost that generated the received signpost signal, and said second information portion relating to a further signpost that generated a preceding signpost signal received by said receiver section. - View Dependent Claims (2, 3, 4, 5)
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6. A method comprising:
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receiving in a receiver section of a tag wireless signpost signals that each include a signpost code;
responding to receipt by said receiver section of a signpost signal by saving information relating to the signpost that generated the signpost signal; and
transmitting from a transmitter section of said tag wireless tag signals that each include a tag code associated with said tag, including responding to receipt by said receiver section of a signpost signal by causing said transmitter section to include first and second information portions in at least one said tag signal, said first information portion relating to one signpost that generated the received signpost signal, and said second information portion relating to a further signpost that generated a preceding signpost signal received by said receiver section. - View Dependent Claims (7, 8, 9)
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10. An apparatus comprising a tag having circuitry that includes:
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a receiver section configured to receive wireless signpost signals that each include a signpost code;
a further section that maintains data identifying a group of signposts that are to be treated as equivalent, said further section being responsive to receipt by said receiver section of a signpost signal for determining from said data whether a signpost signal has previously been received from any said signpost in said group; and
a transmitter section operable to transmit wireless tag signals that each include a tag code associated with said tag, said transmitter section being responsive to receipt by said receiver section of signpost signals from two different signposts in said group for ignoring one of the two received signpost signals and for including in at least one said tag signal an information portion that relates to the other of the two received signpost signals. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method comprising:
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receiving in a receiver section of a tag wireless signpost signals that each include a signpost code;
maintaining in a further section of said tag data identifying a group of signposts that are to be treated as equivalent;
responding to receipt by said receiver section of a signpost signal by determining in said further section from said data whether a signpost signal has previously been received from any said signpost in said group; and
transmitting from a transmitter section of said tag wireless tag signals that each include a tag code associated with said tag, including responding to receipt by said receiver section of signpost signals from two different signposts in said group by causing said transmitter section to ignore one of the two received signpost signals and to include in at least one said tag signal an information portion that relates to the other of the two received signpost signals. - View Dependent Claims (18, 19, 20, 21)
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22. An apparatus comprising:
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a plurality of signposts that each transmit wireless signpost signals that each include a signpost code, the signpost signals from each of said signposts containing the same signpost code;
a tag having a receiver section configured to receive wireless signpost signals. - View Dependent Claims (23, 24, 25, 26)
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27. A method comprising:
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transmitting from each of a plurality of signposts wireless signpost signals that each include the same signpost code; and
receiving in a receiver section of a tag the wireless signpost signals, including responding to receipt of a signpost signal from one of said plurality of signposts for ignoring subsequently-received signpost signals with the same signpost code. - View Dependent Claims (28, 29, 30)
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31. An apparatus comprising a signpost that includes:
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an interface through which a signpost code of the signpost can be selectively set; and
a transmitter section operable to transmit wireless signpost signals that each include said signpost code. - View Dependent Claims (32, 33)
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34. A method comprising:
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transmitting from a signpost wireless signpost signals that each include a signpost code, said signpost code being programmable; and
selectively setting said signpost code of said signpost through an interface of said signpost. - View Dependent Claims (35, 36)
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Specification