18496808. Target Localization Using AC Magnetic Fields simplified abstract (Apple Inc.)

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Target Localization Using AC Magnetic Fields

Organization Name

Apple Inc.

Inventor(s)

Sheng Liu of San Jose CA (US)

Jian Guo of Milpitas CA (US)

Target Localization Using AC Magnetic Fields - A simplified explanation of the abstract

This abstract first appeared for US patent application 18496808 titled 'Target Localization Using AC Magnetic Fields

Simplified Explanation

The patent application describes a device that operates in different modes using magnetic sensors to determine the device's position relative to transmitters in a 3D space.

  • Pairing mode: Device uses AC magnetic fields to choose the closest transmitter for pairing.
  • Indoor navigation mode: Multiple detections of AC magnetic fields help user navigate indoor spaces.
  • Search mode: Companion device and lost device use AC magnetic fields to determine relative position for locating the lost device.

Potential Applications

  • Indoor navigation systems
  • Lost item tracking
  • Pairing devices for communication

Problems Solved

  • Difficulty in pairing devices in close proximity
  • Finding lost items in indoor spaces
  • Navigating complex indoor environments

Benefits

  • Improved accuracy in pairing devices
  • Efficient indoor navigation
  • Quick and easy location of lost items


Original Abstract Submitted

A device operates in pairing mode, indoor navigation mode or search mode. For each mode, a magnetic sensor in the device senses one or more alternating current (AC) magnetic fields emitted by one or more transmitters in a three-dimensional (3D) space, and uses the one or more AC magnetic fields to determine a position of the device relative to the one or more transmitters or another device. In pairing mode, relative position vectors computed from two or more AC magnetic fields allows the device to choose the closest transmitter for pairing. In indoor navigation mode, multiple detections of AC magnetic fields emitted by multiple transmitters assist a user in navigating an indoor space. In search mode, a companion device and a lost device each sense an AC magnetic field from a transmitter, and he AC magnetic fields are used to determine a relative position vector from the companion device to the lost device.