Patents by Inventor Pascal Guigon

Pascal Guigon 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 apparatus for digital to analog conversion
    Patent number: 6441760
    Abstract: A digital to analog converter (40) includes a pulse width modulator (14) and a class-D amplifier (16). The class-D amplifier (16) includes a low pass filter (34). A differential signal is available from two nodes (outp, outm) on the amplifier. Common mode compensation circuitry (42) generates a compensation signal during periods where a PWM signal is not being generated to maintain a common mode average value of (Avdd +Avss)/2 from the nodes, without affecting the differential signal.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: August 27, 2002
    Assignee: Texas Instruments Incorporated
    Inventors: Xavier Albinet, Pascal Guigon
  • Pulse width modulation for low power high efficiency codecs
    Publication number: 20010040521
    Abstract: A digital to analog converter (40) includes a pulse width modulator (14) and a class-D amplifier (16). The class-D amplifier (16) includes a low pass filter (34). A differential signal is available from two nodes (outp, outm) on the amplifier. Common mode compensation circuitry (42) generates a compensation signal during periods where a PWM signal is not being generated to maintain a common mode average value of (Avdd +Avss)/2 from the nodes, without affecting the differential signal.
    Type: Application
    Filed: March 30, 2001
    Publication date: November 15, 2001
    Inventors: Xavier Albinet, Pascal Guigon