Patents by Inventor Eric C. Kulberg

Eric C. Kulberg 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).

  • Patent number: 5850612
    Abstract: A portable wireless communications device such as a telephone handset having a vertically corrected antenna module pivotally secured to the handset for rotation about a first pivot axis. The antenna module can be rotated into a predetermined orientation, independent of handset orientation. An antenna mounted on the module is oriented vertically when the module is in the predetermined orientation. When the antenna module is rotated for use, a mechanism incorporated in the module support structure automatically rotates the antenna module about a second pivot axis which is substantially perpendicular to the first. This second rotation places the antenna at an angle that compensates for tilting of the handset during use about an axis parallel to the second axis, or along the first.
    Type: Grant
    Filed: October 3, 1995
    Date of Patent: December 15, 1998
    Assignee: QUALCOMM Incorporated
    Inventors: Eric C. Kulberg, Stephen B. Tidwell, Roy H. Davis, Roy K. Fischer, Randall R. Toltzman, Randsom A. Brown
  • Patent number: 5844985
    Abstract: A portable phone unit for use in satellite communication systems has a vertically correcting antenna module pivotally secured to the handset for free rotation about a pivot axis. The module contains a mechanism, such as a gravitational counterweight for urging the module to pivot into a predetermined vertical orientation regardless of the handset orientation. An antenna projects from the module in a direction which is vertically upright when the module is in its predetermined vertical orientation. A mast mounted antenna module can also be used to take advantage of dissimilar antenna segment weights for multiple frequency antennas. As the handset is moved into an angular orientation, the module pivots under the weight of the counterweight, or a portion of the antenna itself, until the antenna is oriented vertically.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: December 1, 1998
    Assignee: Qualcomm Incorporated
    Inventors: Eric C. Kulberg, William R. Panton, James H. Thompson, Stephen B. Tidwell, Robert P. Gilmore
  • Patent number: 5734716
    Abstract: A wireless portable phone handset for use in satellite communication systems having a vertically correcting antenna module pivotally secured to the handset for free rotation about a pivot axis. The antenna module contains a magnetic actuator mechanism for urging the module to pivot into a predetermined vertical orientation regardless of the handset orientation. An antenna projects from the module in a direction which is vertically upright when the module is in its predetermined vertical orientation. As the handset is moved into an angular orientation, the module pivots under influence of gravity, and a magnetic field from a magnetic driver, until the antenna is oriented vertically.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: March 31, 1998
    Assignee: QUALCOMM Incorporated
    Inventor: Eric C. Kulberg
  • Patent number: D397110
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: August 18, 1998
    Assignee: Qualcomm Incorporated
    Inventors: Eric C. Kulberg, Roy K. Fischer, Randall K. Toltzman, Randsom A. Brown
  • Patent number: D427143
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: June 27, 2000
    Assignee: QUALCOMM Incorporated
    Inventor: Eric C. Kulberg