Patents by Inventor Erik Carlberg

Erik Carlberg 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).

  • Coexistence of plural wireless communication transceivers in close proximity
    Patent number: 8811241
    Abstract: A communication device has a controller operatively connected to at least a first transceiver and a second transceiver, wherein the first transceiver receives signals on one or more channels within a first frequency band and the second transceiver transmits signals on one or more channels within a second frequency band, wherein the first and second frequency bands are adjacent one another so that each of the first and second frequency bands has an adjacent border and a nonadjacent border. Coexistence between the first and second transceivers is achieved by adjusting receive and/or transmit filters associated with the transceivers to create a guard band that is located more in the first frequency band if the second transceiver is using frequencies close to its adjacent border, and a guard band that is more in the second frequency band if the second transceiver is not using frequencies close to its adjacent border.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: August 19, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Leif Wilhelmsson, Erik Carlberg, Sven Mattisson, Hans Stattin
  • Coexistence of Plural Wireless Communication Transceivers in Close Proximity
    Publication number: 20110116490
    Abstract: A communication device has a controller operatively connected to at least a first transceiver and a second transceiver, wherein the first transceiver receives signals on one or more channels within a first frequency band and the second transceiver transmits signals on one or more channels within a second frequency band, wherein the first and second frequency bands are adjacent one another so that each of the first and second frequency bands has an adjacent border and a nonadjacent border. Coexistence between the first and second transceivers is achieved by adjusting receive and/or transmit filters associated with the transceivers to create a guard band that is located more in the first frequency band if the second transceiver is using frequencies close to its adjacent border, and a guard band that is more in the second frequency band if the second transceiver is not using frequencies close to its adjacent border.
    Type: Application
    Filed: May 4, 2010
    Publication date: May 19, 2011
    Inventors: Leif Wilhelmsson, Erik Carlberg, Sven Mattisson, Hans Stattin