Patents by Inventor Ross Lahlum

Ross Lahlum 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).

  • Apparatus for multiple band communication
    Patent number: 6912406
    Abstract: A mobile communication device that includes an antenna configured to send and/or receive a first signal in a first frequency band and a second signal in a second frequency band, first receiver circuitry configured to receive signals in the first frequency band, a switch having a first position, and a first diplexing network coupled to the antenna, the first diplexing network also coupled to the switch, and first diplexing network also coupled to the first receiver circuitry. The first diplexing network can be configured to pass signals in the first frequency band to the first receiver circuitry and to block signals in the second frequency band from the first receiver circuitry. The first diplexing network can also be configured to pass signals in the second frequency band to the switch. The mobile communication device can also include a second diplexing network coupled to the switch at the first position, the second diplexing network corresponding to the second frequency band.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: June 28, 2005
    Assignee: Motorola Inc.
    Inventors: Ross Lahlum, Randy Wiessner
  • Apparatus for multiple band communication
    Publication number: 20030153348
    Abstract: A mobile communication device that includes an antenna configured to send and/or receive a first signal in a first frequency band and a second signal in a second frequency band, first receiver circuitry configured to receive signals in the first frequency band, a switch having a first position, and a first diplexing network coupled to the antenna, the first diplexing network also coupled to the switch, and first diplexing network also coupled to the first receiver circuitry. The first diplexing network can be configured to pass signals in the first frequency band to the first receiver circuitry and to block signals in the second frequency band from the first receiver circuitry. The first diplexing network can also be configured to pass signals in the second frequency band to the switch. The mobile communication device can also include a second diplexing network coupled to the switch at the first position, the second diplexing network corresponding to the second frequency band.
    Type: Application
    Filed: February 13, 2002
    Publication date: August 14, 2003
    Inventors: Ross Lahlum, Randy Wiessner