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Method for utilizing a wireless connection to unlock an opening

  • US 10,078,931 B2
  • Filed: 03/15/2017
  • Issued: 09/18/2018
  • Est. Priority Date: 12/23/2013
  • Status: Active Grant
First Claim
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1. A method of operating a lock from a portable remote device, the lock controlling access to an area secured by a physical barrier, comprising:

  • sending a radio frequency identification signal from the portable remote device to a controller for the lock;

    receiving the radio frequency identification signal at the lock controller and identifying the remote device as an authorized user of the lock;

    sending a sound frequency identification signal from the portable remote device to the lock controller;

    receiving the sound frequency identification signal from the portable remote device at the lock controller;

    determining a side of the barrier from which the sound frequency identification signal is sent from the portable remote device;

    identifying the portable remote device as an authorized user of the lock; and

    authorizing operation of the lock in accordance with the radio or sound frequency identification signal from the portable remote device and only if the sound frequency identification signal is sent from the portable remote device from a desired side of the barrier.

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