Patents Represented by Attorney J P Cody
  • Patent number: 7345532
    Abstract: An improved PWM amplifier is disclosed that uses multiple integrators in the loop filter to provide high loop gain across the frequency band-of-interest. The frequency characteristics of the loop filter are optimized to distribute large loop gains across the entire band to provide large suppression of noise and distortions generated in the modulation and output stages.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: March 18, 2008
    Assignee: ASP Technologies
    Inventor: Wai L. Lee
  • Patent number: 7345533
    Abstract: An improved PWM amplifier is disclosed that uses multiple integrators in the loop filter to provide high loop gain across the frequency band-of-interest. The frequency characteristics of the loop filter are optimized to distribute large loop gains across the entire band to provide large suppression of noise and distortions generated in the modulation and output stages.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: March 18, 2008
    Assignee: ASP Technologies
    Inventor: Wai L. Lee
  • Patent number: 7038535
    Abstract: An improved PWM amplifier is disclosed that uses multiple integrators in the loop filter to provide high loop gain across the frequency band-of-interest. The frequency characteristics of the loop filter are optimized to distribute large loop gains across the entire band to provide large suppression of noise and distortions generated in the modulation and output stages.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: May 2, 2006
    Inventor: Wai Laing Lee
  • Patent number: D561268
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: February 5, 2008
    Assignee: Bally Gaming, Inc.
    Inventor: Gordon H. Myers
  • Patent number: D561269
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: February 5, 2008
    Assignee: Bally Gaming, Inc.
    Inventor: Gordon H. Myers