Patents by Inventor Henrik EJDERHOLM

Henrik EJDERHOLM has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Indicator device for a hearing loop
    Patent number: 10028067
    Abstract: Indicator device for a hearing loop, arranged to be permanently installed at a location from which it is clearly visible for a user of the hearing loop during such use. The indicator device includes a minimum magnetic field setting unit, a hearing loop detection unit arranged to measure the current field strength of a magnetic field produced by the hearing loop, an interpretation device arranged to translate the detected field strength, in relation to the minimum field strength, to produce a corresponding current relative intensity signal, as well as a variable display unit arranged to display a visible signal indicating the value of the current intensity signal.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: July 17, 2018
    Assignee: AB TRANSISTOR SWEDEN
    Inventors: Henrik Ejderholm, Johan Hammarstrom, Carl Ronn
  • INDICATOR DEVICE FOR A HEARING LOOP
    Publication number: 20180115845
    Abstract: Indicator device for a hearing loop, arranged to be permanently installed at a location from which it is clearly visible for a user of the hearing loop during such use. The indicator device includes a minimum magnetic field setting unit, a hearing loop detection unit arranged to measure the current field strength of a magnetic field produced by the hearing loop, an interpretation device arranged to translate the detected field strength, in relation to the minimum field strength, to produce a corresponding current relative intensity signal, as well as a variable display unit arranged to display a visible signal indicating the value of the current intensity signal.
    Type: Application
    Filed: March 18, 2016
    Publication date: April 26, 2018
    Inventors: Henrik EJDERHOLM, Johan HAMMARSTRÖM, Carl RÖNN