Patents by Inventor Johannes A. A. Das

Johannes A. A. Das 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).

  • Apparatus including a loudspeaker unit, loudspeaker unit, and housing for a loudspeaker unit
    Patent number: 5771304
    Abstract: A television receiver has a subwoofer box situated inside the cabinet of the television receiver. The subwoofer box has a loudspeaker arranged in a chamber and mounted in such a manner that it is situated outside the space enclosed by the subwoofer box. The chamber is dimensioned so as to accommodate the loudspeaker. This enables the volume of the subwoofer box to be optimized in view of the space available inside the cabinet of the television receiver. Moreover, mounting of the loudspeaker and the wiring thereof is simplified considerably.
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: June 23, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Martinus P. M. Van Den Thillart, Wilhelmus H. M. M. Evers, Johannes A. A. Das, Dirk De Boe, Raoul E. M. Keereman