Patents by Inventor Frédéric Parillaud

Frédéric Parillaud 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).

  • Phase locked loop demodulator with gain control
    Patent number: 7420409
    Abstract: The invention relates to a demodulator to demodulate frequency-modulated signals FM including a phase locked loop PLL including at least a phase detector, a loop filter and a voltage controlled oscillator function VCO?, characterized in that said voltage controlled oscillator function VCO? has modifiable gain. The invention allows to eliminate drawbacks presented by the conventional use of a complex gain modifiable amplifier at the input of demodulated signal processing means. Application: demodulation of modulated signals: wireless phone, home network.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: September 2, 2008
    Assignee: DSP Group Switzerland AG
    Inventors: Eric Desbonnets, Frédéric Parillaud, Erick Giroux
  • Phase locked loop demodulator with gain control
    Publication number: 20060071708
    Abstract: The invention relates to a demodulator to demodulate frequency-modulated signals FM including a phase locked loop PLL including at least a phase detector, a loop filter and a voltage controlled oscillator function VCO?, characterized in that said voltage controlled oscillator function VCO? has modifiable gain. The invention allows to eliminate drawbacks presented by the conventional use of a complex gain modifiable amplifier at the input of demodulated signal processing means. Application: demodulation of modulated signals: wireless phone, home network.
    Type: Application
    Filed: October 9, 2003
    Publication date: April 6, 2006
    Inventors: Eric Desbonnets, Frederic Parillaud, Erick Giroux