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Magnetic user interface controls

  • US 9,986,349 B2
  • Filed: 07/17/2015
  • Issued: 05/29/2018
  • Est. Priority Date: 07/17/2014
  • Status: Active Grant
First Claim
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1. A medical device comprising:

  • a first component that includes a magnetic field source that generates a rotationally asymmetric magnetic field;

    a second component that includes;

    a magnetic field sensor that generates a signal that is indicative of a position of the magnetic field sensor in the rotationally asymmetric magnetic field,a second magnetic field source that generates a second magnetic field that is complimentary to the first rotationally asymmetric magnetic field, wherein the first component and the second component are configured to be coupled together by attractive forces exerted between the first rotationally asymmetric magnetic field and the second complimentary magnetic field; and

    a processor coupled to the magnetic field sensor, wherein the processor is configured to;

    process the signal from the magnetic field sensor to identify a direction and a magnitude of movement of the magnetic field sensor in the rotationally asymmetric magnetic field;

    use the direction and magnitude to control one or more operational settings of the medical device, andwherein the second component further includes a sound input component for receiving an electrical signal that represents an audio signal, and an output component for transmitting the electrical signal to the first component, and wherein the processor is configured to apply the electrical signal to the output component for transmission of the electrical signal to the first component.

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