Patents by Inventor Christopher John Becker

Christopher John Becker 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).

  • Demodulator having an infinite-duration impulse response filter with dynamic coeffiecient scaling
    Patent number: 6243410
    Abstract: By time-sharing demodulator hardware between a primary data path (165), a power control data path (161), and a received signal strength indicator (RSSI) path (163), an entire power control data path (161) can be implemented in a demodulator (140) of a spread spectrum subscriber unit receiver with a low increase in gate count. The primary data path (165) and the power control data path (161) time-share a complex conjugate generator (270), a complex multiplier (280), and a real component extractor (290). Due to timing requirements, though, the channel estimation filter (240) of the primary data path cannot be time-shared with the power control data path. Instead, dynamic coefficient scaling is added to an infinite-duration impulse response (IIR) filter in the RSSI path (163) so that the IIR filter (250) with dynamic coefficient scaling can be time-shared between the RSSI path (163) and the power control data path (161).
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: June 5, 2001
    Assignee: Motorola, Inc.
    Inventors: Christopher Peter LaRosa, Michael John Carney, Christopher John Becker
  • CDMA power control channel estimation using dynamic coefficient scaling
    Patent number: 5799011
    Abstract: By time-sharing demodulator hardware between a primary data path (165), a power control data path (161), and a received signal strength indicator (RSSI) path (163), an entire power control data path (161) can be implemented in a demodulator (140) of a spread spectrum subscriber unit receiver with a low increase in gate count. The primary data path (165) and the power control data path (161) time-share a complex conjugate generator (270), a complex multiplier (280), and a real component extractor (290). Due to timing requirements, though, the channel estimation filter (240) of the primary data path cannot be time-shared with the power control data path. Instead, dynamic coefficient scaling is added to an infinite-duration impulse response (IIR) filter in the RSSI path (163) so that the IIR filter (250) with dynamic coefficient scaling can be time-shared between the RSSI path (163) and the power control data path (161).
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: August 25, 1998
    Assignee: Motorola, Inc.
    Inventors: Christopher Peter LaRosa, Michael John Carney, Christopher John Becker, Fuyun Ling