Patents by Inventor Douglas F. Carey

Douglas F. Carey 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: 6169910
    Abstract: A system for establishing and utilizing a wireless communication system using a lens antenna having a dielectric material lens. The lens focuses output radio frequency (rf) signals into narrow beam rf signals which are directed to a specific receiving communication device. The lens focuses input rf signals onto signal processing equipment. A communication system between two or more communication devices which utilizes a dielectric material lens and signal processing equipment can be used for point-to-point or point-to-multipoint communication.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: January 2, 2001
    Assignee: Focused Energy Holding Inc.
    Inventors: Lakshman S. Tamil, Aubrey I. Chapman, Douglas F. Carey
  • Patent number: 6169525
    Abstract: A sectored antenna system has one or more dielectric lenses, each having a surface and two or more low profile antenna feed devices. At least one of the feed devices radiate signals into said lens that emerge as separate directional beams, and/or the lenses receive incoming signals from different directions and focus them onto different antenna feed devices. The feed devices of the sectored antenna system are low-profile broadband feed devices, such as log periodic dipole arrays or tapered notch antennas. Special design guidelines are given for their use with a lens. In addition, a method to reduce the cut off frequency of the tapered notch antenna is shown.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: January 2, 2001
    Assignee: Spike Technologies, Inc.
    Inventors: Edward F. Dziadek, Douglas F. Carey
  • Patent number: 6046701
    Abstract: A sectored antenna system has one or more dielectric lenses, each having a surface and two or more antenna feed devices tilted non-parallel to the lens surface and preferably angled in a V pattern. At least one of the feed devices radiate signals into said lens that emerge as separate directional beams, or the lenses receive incoming signals from different directions and focus them onto different antenna feed devices. The feed devices of the sectored antenna system have a dielectric constant of between about 5 and 15 and preferable about 10 and further has a mounting collar to mount the antenna feed devices about the lens to adjust for elevation, azimuth, radial and rotational orientation.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: April 4, 2000
    Assignee: Spike Technologies, Inc.
    Inventors: Douglas F. Carey, Edward F. Dziadek, Christopher M. Moritz