Patents by Inventor David G. Shively

David G. Shively 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: 8818315
    Abstract: Signal quality of a composite received signal in a radio communication network is optimized by adjusting a phase offset between received and/or transmitted signals based on signal quality parameters of the received and/or transmitted signals. The phase offset is adjusted by varying the phase offset between the received or transmitted signals such that that the composite signal is circularly, elliptically, or linearly polarized. The phase offset between the received or transmitted signals is continually adjusted based on the received signal quality parameters.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: August 26, 2014
    Assignee: AT&T Mobility II LLC
    Inventors: John E. Lewis, Melvin D. Frerking, David G. Shively
  • Publication number: 20130237168
    Abstract: Signal quality of a composite received signal in a radio communication network is optimized by adjusting a phase offset between received and/or transmitted signals based on signal quality parameters of the received and/or transmitted signals. The phase offset is adjusted by varying the phase offset between the received or transmitted signals such that that the composite signal is circularly, elliptically, or linearly polarized. The phase offset between the received or transmitted signals is continually adjusted based on the received signal quality parameters.
    Type: Application
    Filed: April 18, 2013
    Publication date: September 12, 2013
    Applicant: AT&T MOBILITY II LLC
    Inventors: John E. Lewis, Melvin D. Frerking, David G. Shively
  • Patent number: 8442469
    Abstract: Signal quality of a composite received signal in a radio communication network is optimized by adjusting a phase offset between received and/or transmitted signals based on signal quality parameters of the received and/or transmitted signals. The phase offset is adjusted by varying the phase offset between the received or transmitted signals such that that the composite signal is circularly, elliptically, or linearly polarized. The phase offset between the received or transmitted signals is continually adjusted based on the received signal quality parameters.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: May 14, 2013
    Assignee: AT&T Mobility II LLC
    Inventors: John E. Lewis, Melvin D. Frerking, David G. Shively
  • Publication number: 20110143792
    Abstract: Signal quality of a composite received signal in a radio communication network is optimized by adjusting a phase offset between received and/or transmitted signals based on signal quality parameters of the received and/or transmitted signals. The phase offset is adjusted by varying the phase offset between the received or transmitted signals such that that the composite signal is circularly, elliptically, or linearly polarized. The phase offset between the received or transmitted signals is continually adjusted based on the received signal quality parameters.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 16, 2011
    Inventors: John E. Lewis, Melvin D. Freking, David G. Shively
  • Patent number: 7715853
    Abstract: A craft-mounted repeater system processes signal properties (e.g., signal strength) between terrestrial (ground-based) wireless networks and mobile users that are aboard crafts (e.g., airplanes and/or ships) equipped to allow the user's mobile communications device to communicate at departure and at arrival of the craft. An onboard craft-mounted non-translating in-band only repeater system is a provided that increases the terrestrial mobile network signal levels inside the aircraft or ship to allow passengers to communicate with a terrestrial cellular communications system.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: May 11, 2010
    Assignee: AT&T Mobility II LLC
    Inventors: Melvin D. Frerking, George O. Hirvela, David G. Shively
  • Patent number: 5712647
    Abstract: A spiral microstrip antenna having resistor elements embedded in each of the spiral arms is provided. The antenna is constructed using a conductive back plane as a base. The back plane supports a dielectric slab having a thickness between one-sixteenth and one-quarter of an inch. A square spiral, having either two or four arms, is attached to the dielectric slab. Each arm of the spiral has resistor elements thereby dissipating an excess energy not already emitted through radiation. The entire configuration provides a thin, flat, high gain, wide bandwidth antenna which requires no underlying cavity. The configuration allows the antenna to be mounted conformably on an aircraft surface.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: January 27, 1998
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: David G. Shively