Patents by Inventor Warren H. Gustafson

Warren H. Gustafson 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).

  • Code-division multiple-access cellular system employing overlaid cells
    Patent number: 5924036
    Abstract: A cellular-telephone base station (12) services a cell (14) that encompasses cells (16 and 18) serviced by other base stations (20 and 22). The base station (12) associated with the overlaid cell (14) communicates with mobile stations within its cell (14) by way of code-division multiple-access (CDMA) channels in a first frequency band. The CDMA channels by which the other base stations (20 and 22) communicate with mobile stations in their respective cells (16 and 18) occupy a second frequency band. Although the two smaller-cell base stations (20 and 22) employ the same frequency band, they are not contiguous, and they are separated enough so that they interfere only negligibly. Consequently, their channel capacities exceed those of conventionally configured CDMA cells of the same bandwidth.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: July 13, 1999
    Assignee: AirNet Communications Corp.
    Inventor: Warren H. Gustafson
  • Distributing wireless system carrier signals within a building using existing power line wiring
    Patent number: 5832364
    Abstract: A radio-frequency (RF) distribution system carriers multi-carrier RF signals having frequencies above 500 Mb over existing electric power wiring between a transceiver and one or more antennas. The transceiver and antennas can be connected to the power wiring, disconnected from the power wiring, relocated, and reconnected to the power wiring without installing conventional transmission lines.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: November 3, 1998
    Assignee: AirNet Communications Corp.
    Inventor: Warren H. Gustafson
  • Garnet centering ring for circulators and isolators
    Patent number: 5172080
    Abstract: In a circulator/isolator device used in a cellular transmission network, a centering ring is used to position the garnets with respect to the center conductor, magnets and pole piece. The clamping action of the housing holds the unit together. Because the ring centers all components, additional fixtures are not needed and inaccurate "eyeballing" by the assembler is eliminated. The garnets are held in place during assembly by the centering ring thereby eliminating the need for adhesive or dielectric grease.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: December 15, 1992
    Assignee: Radio Frequency Systems, Inc.
    Inventors: David S. Fisher, Warren H. Gustafson
  • N-way signal splitter with isolated outputs
    Patent number: 5021755
    Abstract: An n-way signal splitter having isolated outputs with a printed circuit board geometry providing the necessary crossovers with impedance lines, running under and orthogonal to resistive components, fabricated in microstrip on one side of the board, with a ground plane completely covering the other side, requiring no feedthrough holes or jumper cables to provide the necessary crossovers, and input and output connectors being fastened directly to the printed circuit board.
    Type: Grant
    Filed: November 8, 1989
    Date of Patent: June 4, 1991
    Assignee: Radio Frequency Systems, Inc.
    Inventor: Warren H. Gustafson