Patents by Inventor Henrik Sihm

Henrik Sihm 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).

  • Safety system, method and computer program for remotely controlled work vehicles
    Patent number: 10976735
    Abstract: The present disclosure relates to a safety system (100) for a remotely operated work vehicle (110). The safety system (100) works by continuously establishing a spatial relationship between the work vehicle (110) and a wireless remote control unit (130), wherein at least part of the information needed to establish the spatial relationship is carried as data in signals. The established spatial relationship is then used to control the work vehicle (110).
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: April 13, 2021
    Assignee: HUSQVARNA AB
    Inventors: Marcus Idbrant, Kristian Elofsson, Henrik Sihm
  • SAFETY SYSTEM, METHOD AND COMPUTER PROGRAM FOR REMOTELY CONTROLLED WORK VEHICLES
    Publication number: 20190155278
    Abstract: The present disclosure relates to a safety system (100) for a remotely operated work vehicle (110). The safety system (100) works by continuously establishing a spatial relationship between the work vehicle (110) and a wireless remote control unit (130), wherein at least part of the information needed to establish the spatial relationship is carried as data in signals. The established spatial relationship is then used to control the work vehicle (110).
    Type: Application
    Filed: April 20, 2017
    Publication date: May 23, 2019
    Inventors: Marcus Idbrant, Kristian Elofsson, Henrik Sihm
  • Balanced load switch
    Patent number: 6753716
    Abstract: The present invention relates to a circuitry for impedance matching. The invention utilizes circuitry for impedance matching, which circuitry for example is connected to a differential or balanced power amplifier or some other device in need of output impedance tuning. The circuitry includes at least one inductance connected to at least one device which conducts when being forward biased, and a direct current (DC) source controlling the conduction of the device. The circuitry eliminates the DC component of a signal passing through it. By controlling the device that is conducting when it is forward biased, it is possible to turn the circuitry on and off, thus altering the impedance at the output of the amplifier. Hence, a load switch has been created at the output of the amplifier.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: June 22, 2004
    Assignee: Nokia Corporation
    Inventors: Henrik Sihm, Jesper Riishöj
  • Balanced load switch
    Publication number: 20040017244
    Abstract: The present invention relates to a circuitry for impedance matching. The invention utilizes circuitry for impedance matching, which circuitry for example is connected to a differential or balanced power amplifier or some other device in need of output impedance tuning. The circuitry includes at least one inductance connected to at least one device which conducts when being forward biased, and a direct current (DC) source controlling the conduction of the device. The circuitry eliminates the DC component of a signal passing through it. By controlling the device that is conducting when it is forward biased, it is possible to turn the circuitry on and off, thus altering the impedance at the output of the amplifier. Hence, a load switch has been created at the output of the amplifier.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 29, 2004
    Inventors: Henrik Sihm, Jesper Riishoj