Patents by Inventor Pascal Charlet

Pascal Charlet 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 to expand an analog signal and device to implement the method
    Patent number: 4920279
    Abstract: A method for enlarging part of an analog input signal, and a circuit to implement this method. The circuit includes an amplifier which receives the analog input signal, the gain of which is controlled by a programming signal which varies as a function of the leading edge of the analog input signal and of a maximum threshold of the output signal from the circuit. A subtractor receives a substraction signal which is a function of an upper threshold and a lower threshold of the output signal from the circuit, and a signal from the amplifier, and then provides the output signal from the circuit.
    Type: Grant
    Filed: September 28, 1988
    Date of Patent: April 24, 1990
    Assignee: SGS Thomson Microelectronics SA
    Inventors: Pascal Charlet, Eric Lauverjat, Rafael Moreno