Patents by Inventor Michael Schoeffmann

Michael Schoeffmann 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).

  • In-Ear Headphone
    Publication number: 20080095393
    Abstract: An in-ear headphone (1) comprising an elastic sealing part (2) and a solid sealing part (3) for sealing an ear cavity (b) against an outside region (c) is disclosed, wherein said solid sealing part (3) comprises at least one damping vent (4) interconnecting the ear cavity (b) and the outside region (c), and wherein said damping vent (4) forms an acoustic friction.
    Type: Application
    Filed: November 16, 2005
    Publication date: April 24, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Erich Klein, Michael Schoeffmann
  • Electroacoustic transducer with built in transducer circuit
    Patent number: 7277555
    Abstract: In an electroacoustic transducer (1), an annular shaped magnet system (14) is provided, enclosing an inner space (22), in which inner space (22) an integrated circuit (31) is accommodated, with the aid of which integrated circuit (31) an electrical signal to be sent to a moving coil (29) of transducer (1) can be amplified.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: October 2, 2007
    Assignee: NXP, B.V.
    Inventors: Erich Klein, Michael Schoeffmann
  • Electroacoustic transducer with built in transducer circuit
    Publication number: 20050244028
    Abstract: In an electroacoustic transducer (1), an annular shaped magnet system (14) is provided, enclosing an inner space (22), in which inner space (22) an integrated circuit (31) is accommodated, with the aid of which integrated circuit (31) an electrical signal to be sent to a moving coil (29) of transducer (1) can be amplified.
    Type: Application
    Filed: July 18, 2003
    Publication date: November 3, 2005
    Inventors: Erich Klein, Michael Schoeffmann