METHOD AND APPARATUS FOR CONSERVING TRANSCEIVER POWER
First Claim
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1. A method for conserving power in a system having at least a pair of communicating transceivers in communication with an electronic device, the method comprising the steps of:
- receiving an incoming signal from the electronic device at a first transceiver having a first frequency hopping spread spectrum unit and a radio-frequency identification (“
RFID”
) transceiver;
the RFID transceiver in the first transceiver searching for an active RFID tag in a second transceiver;
the RFID transceiver in the first transceiver activating the active RFID tag in the second transceiver to activate the second frequency hopping spread spectrum unit in the second transceiver;
the first frequency hopping spread spectrum unit pairing with the second frequency hopping spread spectrum unit, to allow the first transceiver and the second transceiver to communicate with the electronic device; and
disabling the second frequency hopping spread spectrum unit in the second transceiver when communication with the electronic device is ended.
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Abstract
The present invention utilizes radio-frequency identification (“RFID”), which consume a small amount of energy, to allow two transceivers with frequency hopping spread spectrum units to discover each other. A first transceiver may, for example, have a first energy capacity, an RFID transceiver, and a first frequency hopping spread spectrum unit. A second transceiver with a lower energy capacity would then have an active RFID tag and a second frequency hopping spread spectrum unit.
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Citations
1 Claim
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1. A method for conserving power in a system having at least a pair of communicating transceivers in communication with an electronic device, the method comprising the steps of:
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receiving an incoming signal from the electronic device at a first transceiver having a first frequency hopping spread spectrum unit and a radio-frequency identification (“
RFID”
) transceiver;the RFID transceiver in the first transceiver searching for an active RFID tag in a second transceiver; the RFID transceiver in the first transceiver activating the active RFID tag in the second transceiver to activate the second frequency hopping spread spectrum unit in the second transceiver; the first frequency hopping spread spectrum unit pairing with the second frequency hopping spread spectrum unit, to allow the first transceiver and the second transceiver to communicate with the electronic device; and disabling the second frequency hopping spread spectrum unit in the second transceiver when communication with the electronic device is ended.
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Specification
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Current AssigneeInternational Business Machines Corporation
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Original AssigneeInternational Business Machines Corporation
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InventorsDeLuca, Lisa Seacat, Talbot, Mark Wllliam, Peterson, Robert Ross, Bhogal, Kulvir Singh
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Application NumberUS12/336,285Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current375/133CPC Class CodesH04B 1/713 using frequency hopping
