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Sensor based signal transmission methods and apparatuses

  • US 9,654,846 B2
  • Filed: 05/26/2015
  • Issued: 05/16/2017
  • Est. Priority Date: 05/26/2015
  • Status: Active Grant
First Claim
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1. A signal transmission apparatus with fail-safe properties, the signal transmission apparatus comprising:

  • a transmitter to transmit a communication signal of the signal transmission apparatus at least at a first power level;

    a sensor to monitor a process that is external to the signal transmission apparatus and to provide an output signal indicating a change in a state of the process; and

    a control module communicatively coupled with the sensor and the transmitter, to determine whether the output signal provided by the sensor has indicated a change in the process that is external to the signal transmission apparatus over a threshold time period, and cause the transmitter to switch the transmission of the communication signal from the first power level to a second power level that is lower than the first power level, based at least in part on a result of the determination.

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