Patents by Inventor Braden J. Fessler

Braden J. Fessler 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).

  • Method and system for mobile call testing using contactless ring detection
    Patent number: 7787876
    Abstract: A method for mobile call testing is provided. The method involves initiating at a test-control module a test call to a mobile unit, and detecting at a ring-detecting module, via a contactless coupling to the mobile unit, whether the mobile unit rings in response to the test call from the test-control module. Further, the method then involves providing a ring indication from the ring-detecting module to the test-control module when a mobile ring is detected in response to the test call. In one example, the contactless coupling is an acoustic coupling.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: August 31, 2010
    Assignee: Sprint Spectrum L.P.
    Inventors: Braden J. Fessler, Yogesh Tugnawat, Dave E. Reimer, Gary T. Schick, John H. Mondloch
  • Portable interference-generating device for use in CDMA mobile testing
    Patent number: 7437128
    Abstract: A portable interference-generating device for inducing desired frame error characteristics, such as desired frame error patterns and rates, at a mobile unit receiving a carrier signal having at least one data channel having a plurality of data frames. The induced frame errors may be used to test a digital radio receiver's behavior in the presence of frame errors that may occur as a result of various impairments in a CDMA wireless communication channel. The portable interference-generating device includes a noise source that provides a noise signal and a pulse generator that is used to gate the noise signal according to a desired frame error characteristic at the mobile unit. The gated noise signal is provided to the mobile unit via a coupling element, which preferably couples the gated noise signal directly to an antenna radiation element on the mobile unit.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: October 14, 2008
    Assignee: Sprint Spectrum L.P.
    Inventors: Braden J. Fessler, Nick J. Baustert, Cesar Perez, William G. Smith
  • Portable interference-generating device for use in a CDMA mobile testing
    Patent number: 7302234
    Abstract: A portable interference-generating device for inducing desired frame error characteristics, such as desired frame error patterns and rates, at a mobile unit receiving a carrier signal having at least one data channel having a plurality of data frames. The induced frame errors may be used to test a digital radio receiver's behavior in the presence of frame errors that may occur as a result of various impairments in a CDMA wireless communication channel. The portable interference-generating device includes a noise source that provides a noise signal and a pulse generator that is used to gate the noise signal according to a desired frame error characteristic at the mobile unit. The gated noise signal is provided to the mobile unit via a coupling element, which preferably couples the gated noise signal directly to an antenna radiation element on the mobile unit.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: November 27, 2007
    Assignee: Sprint Spectrum L.P.
    Inventors: Braden J. Fessler, Nick J. Baustert, Cesar Perez, William G. Smith