Patents by Inventor Marc Anciant

Marc Anciant 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).

  • Permanent magnet actuator with electric excitation coil, especially loudspeaker and mobile telephone
    Patent number: 6901150
    Abstract: To reduce the effects of disturbing electromagnetic effects on a loudspeaker of a mobile telephone, the loudspeaker is provided with a compensation coil in addition to an excitation coil. The compensation coil is series-connected with the excitation coil. However, it is dispensed of the need for playing a driving role by being bonded to the permanent magnet of the loudspeaker: It is shown that the harmful effects are reduced without stopping the loudspeaker from working.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: May 31, 2005
    Assignee: Sagem, SA
    Inventor: Marc Anciant
  • Permanent magnet actuator with electric excitation coil, especially loudspeaker and mobile telephone
    Publication number: 20040208337
    Abstract: To reduce the effects of disturbing electromagnetic effects on a loudspeaker of a mobile telephone, the loudspeaker is provided with a compensation coil in addition to an excitation coil. The compensation coil is series-connected with the excitation coil. However, it is dispensed of the need for playing a driving role by being bonded to the permanent magnet of the loudspeaker. It is shown that the harmful effects are reduced without stopping the loudspeaker from working.
    Type: Application
    Filed: May 11, 2004
    Publication date: October 21, 2004
    Applicant: Sagem SA
    Inventor: Marc Anciant