Patents by Inventor Arnaud Maecker

Arnaud Maecker 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).

  • Electronic digital-to-analog converter circuit for a baseband transmission system
    Patent number: 6323795
    Abstract: The invention relates to an electronic circuit for solving problems of phase linearity involved with transmitting a signal through a digital-to-analog converter module. By connecting the following in cascade: an interpolator; a sigma-delta modulator; a digital-to-analog converter block made up of a 1-bit digital-to-analog converter and a multiband finite impulse response filter; and an analog filter, it is possible to filter out quantization noise while providing a linear response at the output from the circuit.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: November 27, 2001
    Assignee: Alcatel
    Inventors: Fuji Yang, Arnaud Maecker
  • Transmit-receive system and transmission method, in particular for a mobile telephone
    Patent number: 6161000
    Abstract: A transmit-receive system includes a phase-locked loop and a translation frequency loop. To bring about frequency hops, the frequencies in the two loops are varied with large increments in opposite directions. It is shown that the noise caused by the frequency division in the loops is thereby reduced.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: December 12, 2000
    Assignee: Alcatel
    Inventors: Fuji Yang, Pierre Genest, Eric Dussauby, Corinne Berland, Arnaud Maecker