Patents by Inventor Bradley Anderson Ballard

Bradley Anderson Ballard 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).

  • Digital signal processing architecture for multi-band radio receiver
    Patent number: 6256358
    Abstract: A digital signal processing architecture for an audio system combines multiple functions in programmable and reconfigurable blocks to achieve an efficient use of hardware and chip area. AM, FM, and audio functions can be performed using the same reconfigurable hardware while taking into account the different sample rates and processing functions required for each.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: July 3, 2001
    Assignee: Visteon Global Technologies, Inc.
    Inventors: J. William Whikehart, James Alfred Wargnier, Bradley Anderson Ballard, Nicholas Lawrence Difiore, John Elliott Whitecar, Christopher John Hagan
  • Digital oscillator using lookup table with multiple cycles
    Patent number: 5936438
    Abstract: A digital waveform oscillator generates digitized waveforms without distortion using a lookup table. The frequencies which may be generated using direct lookup tables at their fundamental table frequencies are increased according to this invention by including multiple cycles of the waveform within a single table. The selection of a table length L and a number of cycles N to be stored in a lookup table is done in a manner to optimize corresponding values of the frequencies to be generated and the sample rate.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: August 10, 1999
    Assignee: Ford Motor Company
    Inventors: J. William Whikehart, Bradley Anderson Ballard
  • Method for generating a lookup table for a digital oscillator
    Patent number: 5892692
    Abstract: A digital waveform oscillator generates digitized waveforms without distortion using a lookup table. The frequencies which may be generated using direct lookup tables at their fundamental table frequencies are increased according to this invention by including multiple cycles of the waveform within a single table. The selection of a table length L and a number of cycles N to be stored in a lookup table is done in a manner to optimize corresponding values of the frequencies to be generated and the sample rate.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: April 6, 1999
    Assignee: Ford Motor Company
    Inventors: J. William Whikehart, Bradley Anderson Ballard