Patents by Inventor Jan Louis Josephina Servaes

Jan Louis Josephina Servaes 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).

  • Low voltage broadband line driver
    Patent number: 6985578
    Abstract: The present invention relates to broadband line drivers, comprising a cascade connection of an operational amplifier (A) and a transformer (T), which can be integrated on chip. This is obtained by putting the transformer (T) in a feedback loop between the output and the input of the operational amplifier (A).
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: January 10, 2006
    Assignee: Alcatel
    Inventors: Jan Louis Josephina Servaes, Wim André Paula De Wilde
  • Low voltage broadband line driver
    Publication number: 20020034294
    Abstract: The present invention relates to broadband line drivers, comprising a cascade connection of an operational amplifier (A) and a transformer (T), which can be integrated on chip. This is obtained by putting the transformer (T) in a feedback loop between the output and the input of the operational amplifier (A).
    Type: Application
    Filed: July 23, 2001
    Publication date: March 21, 2002
    Applicant: ALCATEL
    Inventors: Jan Louis Josephina Servaes, Wim Andre Paula De Wilde
  • Power amplifier arrangement
    Patent number: 6215356
    Abstract: An amplifier arrangement includes a class-G amplifier, biased by a first and a second pair of bias voltages, a drive control circuit and a second amplifier (C) biased by the second pair of supply voltages, the drive control circuit (DCD) thereby being adapted to turn on said second amplifier (C) at a higher input signal amplitude than the input signal amplitude at which the current in the class-G amplifier is internally switched over from the first pair to the second pair of bias voltages.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: April 10, 2001
    Assignee: Alcatel
    Inventors: Jan Louis Josephina Servaes, Jean-Philippe Robert Adiel Cornil