Patents by Inventor Dag Eison Åkerberg

Dag Eison Åkerberg 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).

  • Antenna switching diversity
    Patent number: 6553078
    Abstract: An antenna switching diversity radio communication system includes a base station and a radio terminal. Transmission and reception are separated in both time and frequency in both the base station and the radio terminal. Reception quality uplink is measured on a set of several antennas belonging to the base station. The base station stores and later retrieves this quality measurement for selecting one of the antennas for uplink reception. The radio terminal measures and reports downlink reception quality to the base station, which stores this information to later select one of the antennas for downlink transmission.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: April 22, 2003
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Dag Eison Åkerberg