METHODS AND APPARATUS FOR ASSET TRACKING
First Claim
Patent Images
1. A method for enabling asset tracking comprising the steps of:
- receiving a first excitation signal at a first power level using a first frequency band; and
upon determining that a first set of parameters is satisfied, awakening from an inactive mode to an active mode, transmitting data at a second power level that is greater than the first power level using a second frequency band that is different from the first frequency band, and returning to the inactive mode, wherein determining that the first set of parameters is satisfied comprises at least determining that the first excitation signal corresponds to a first wake-up circuit.
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Abstract
A method for enabling asset tracking that includes the steps of: receiving (910) a first excitation signal at a first power level using a first frequency band; and (920) upon determining that a first set of parameters is satisfied, awakening from an inactive mode to an active mode, transmitting data at a second power level that is greater than the first power level using a second frequency band that is different from the first frequency band, and returning to the inactive mode, wherein determining that the first set of parameters is satisfied comprises at least determining that the first excitation signal corresponds to a first wake-up circuit.
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Citations
17 Claims
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1. A method for enabling asset tracking comprising the steps of:
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receiving a first excitation signal at a first power level using a first frequency band; and
upon determining that a first set of parameters is satisfied, awakening from an inactive mode to an active mode, transmitting data at a second power level that is greater than the first power level using a second frequency band that is different from the first frequency band, and returning to the inactive mode, wherein determining that the first set of parameters is satisfied comprises at least determining that the first excitation signal corresponds to a first wake-up circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. Apparatus comprising:
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an antenna a receiver circuit coupled to the antenna and comprising at least one wake-up circuit, the receiver circuit, receiving a first excitation signal at a first power level using a first frequency band; and
upon determining that a first set of parameters is satisfied, awakening from an inactive mode to an active mode, transmitting data at a second power level that is greater than the first power level using a second frequency band that is different from the first frequency band, and returning to the inactive mode, wherein determining that the first set of parameters is satisfied comprises at least determining that the first excitation signal corresponds to the at least one wake-up circuit; and
a transmitter circuit coupled to the antenna and to the receiver circuit to transmit the data. - View Dependent Claims (13, 14, 15, 16)
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17. A method for enabling asset tracking comprising the steps of:
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receiving a first excitation signal at a first power level using a first frequency band; and
upon determining that a first set of parameters is satisfied, awakening from an inactive mode to an active mode, transmitting data at a second power level that is greater than the first power level using a second frequency band that is different from the first frequency band, and returning to the inactive mode, wherein determining that the first set of parameters is satisfied comprises at least determining that the first excitation signal corresponds to a first wake-up circuit of a plurality of wake-up circuits.
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Specification