Patents by Inventor Mikael Kvist

Mikael Kvist 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).

  • Method and device in over-the-air test environment
    Patent number: 8913963
    Abstract: The present invention relates to a device and method for simulating a radio channel with a defined characteristic between at least one antenna port (102a, 102b) of a first device (101), and a second device (103) in a test environment. The device comprises a first antenna (104a) adapted to transmit signals, and arranged to provide a first radio channel (105a) between the first antenna (104a) and the second device (103) and, a second antenna (104b) adapted to transmit signals, and arranged to provide a second radio channel (105b) between the second antenna (104b) and the second device (103). A characteristic of the second radio channel (105b) is dissimilar to a characteristic of the first radio channel (105a).
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: December 16, 2014
    Assignee: Unwired Planet, LLC
    Inventors: Anders Lundström, Henrik Asplund, Mikael Kvist, Emil Mellfeldt
  • Method and device in over-the-air test environment
    Patent number: 8913964
    Abstract: The present invention relates to a device and method for simulating a radio channel with a defined characteristic between at least one antenna port (102a, 102b) of a first device (101), and a second device (103) in a test environment. The device comprises a first antenna (104a) adapted to receive signals, and arranged to provide a first radio channel (105a) between the first antenna (104a) and the second device (103) and, a second antenna (104b) adapted to receive signals, and arranged to provide a second radio channel (105b) between the second antenna (104b) and the second device (103). A characteristic of the second radio channel (105b) is dissimilar to a characteristic of the first radio channel (105a). The device further comprises a modifying circuit (107a, 107b) adapted to modify an amplitude relation between the received signals, and a multiport circuit (106) arranged to connect the first and second antennas (104a, 104b) with the at least one antenna port (102a, 102b).
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: December 16, 2014
    Assignee: Unwired Planet, LLC
    Inventors: Anders Lundström, Henrik Asplund, Mikael Kvist, Emil Mellfeldt
  • Method and Device in Over-the-Air Test Environment
    Publication number: 20110263215
    Abstract: The present invention relates to a device and method for simulating a radio channel with a defined characteristic between at least one antenna port (102a, 102b) of a first device (101), and a second device (103) in a test environment. The device comprises a first antenna (104a) adapted to transmit signals, and arranged to provide a first radio channel (105a) between the first antenna (104a) and the second device (103) and, a second antenna (104b) adapted to transmit signals, and arranged to provide a second radio channel (105b) between the second antenna (104b) and the second device (103). A characteristic of the second radio channel (105b) is dissimilar to a characteristic of the first radio channel (105a).
    Type: Application
    Filed: November 5, 2009
    Publication date: October 27, 2011
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Henrik Asplund, Anders Lundström, Emil Mellfeldt, Mikael Kvist
  • Method and Device in Over-the-Air Test Environment
    Publication number: 20110230143
    Abstract: The present invention relates to a device and method for simulating a radio channel with a defined characteristic between at least one antenna port (102a, 102b) of a first device (101), and a second device (103) in a test environment. The device comprises a first antenna (104a) adapted to receive signals, and arranged to provide a first radio channel (105a) between the first antenna (104a) and the second device (103) and, a second antenna (104b) adapted to receive signals, and arranged to provide a second radio channel (105b) between the second antenna (104b) and the second device (103). A characteristic of the second radio channel (105b) is dissimilar to a characteristic of the first radio channel (105a). The device further comprises a modifying circuit (107a, 107b) adapted to modify an amplitude relation between the received signals, and a multiport circuit (106) arranged to connect the first and second antennas (104a, 104b) with the at least one antenna port (102a, 102b).
    Type: Application
    Filed: November 5, 2009
    Publication date: September 22, 2011
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Anders Lundström, Henrik Asplund, Mikael Kvist, Emil Mellfeldt