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Dual mode wireless communications device

  • US 8,644,892 B2
  • Filed: 05/31/2011
  • Issued: 02/04/2014
  • Est. Priority Date: 05/31/2011
  • Status: Active Grant
First Claim
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1. A wireless communications device comprising:

  • a battery configured to provide power to operate the wireless communications device in a first mode of operation;

    a processing section coupled to the battery and configured to operate on battery power in the first mode of operation; and

    an RF interface configured to receive an RF signal and generate operating power for the wireless communications device from the RF signal in a second mode of operation;

    wherein the wireless communications device is configured to detect available RF power and enter the second mode of operation from the first mode of operation, configured such that the processing section enters a sleep mode in the second mode of operation, and configured to detect a fill state of a memory and based on the fill state change the processing section from the sleep mode to an active mode and conduct data transfer with the memory.

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