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Method and device for implementing a quiet zone

  • US 9,973,619 B2
  • Filed: 11/11/2015
  • Issued: 05/15/2018
  • Est. Priority Date: 11/11/2015
  • Status: Active Grant
First Claim
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1. A device comprising:

  • circuitry configured todetermine if the device is moved into a quiet zone, the quiet zone having a predetermined perimeter defined by a plurality of transceivers, each transceiver being in a predetermined location,determine if an initial alert setting of the device is a silent alert setting when the device was determined to have been moved into the quiet zone,receive a signal from a remote device that triggers a change to the initial alert setting of the device when the initial alert setting is not the silent alert setting,determine if a request is received from the device to override the silent alert setting on the device, and when the request is received, transmit device information from the device to the remote device when the device overrides the silent alert setting, wherein the remote device tracks a location of the device based on the device information, wherein the remote device includespositioning circuitry configured to generate local position data of the remote device;

    a motion sensor configured to detect a moving state of the remote device, and in response to detecting the moving state of the remote device, generate orientation data indicating a current three-dimensional orientation of the remote device;

    direction finding circuitry configured to generate direction data of the device indicating a direction of the device based on two-dimensional direction of arrival estimation based on radio signals received from the device, wherein the two-dimensions of the direction of arrival estimation include azimuth and elevation;

    locating circuitry configured toreceive map data of an area in which the remote device is positioned,receive the device information, wherein the device information includes device position data,determine if the device is within a predetermined radius relative to the remote device based on the device position data, andwhen the device is within the predetermined radius, request the device to transmit a signal for the two-dimensional direction of arrival estimation; and

    a navigation content generator configured to determine a location of the device based on the device position data, the map data, the local position data generated at the positioning circuitry, and the orientation data generated at the motion sensor, and the direction data generated at the direction finding circuitry,receive a response signal from the remote device in response to transmitting the device information to the remote device and set the alert setting to correspond with setting information in the response signal, andrestore the alert setting to the initial alert setting when the device is moved out of the quiet zone.

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