Patents by Inventor E-Hung LU

E-Hung LU 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).

  • Electrostatic electroacoustic transducer and fabricating methods for the same
    Patent number: 9456283
    Abstract: An electrostatic electroacoustic transducer includes a first structure, a second structure and a third electrode. The third electrode is located between the first structure and the second structure. The first structure includes a first driving element, a first spacer and a first diaphragm, and the second structure includes a second driving element, a second spacer and a second diaphragm. By providing an alternating voltage source, a transformer and a bias voltage, the electrostatic electroacoustic transducer with a dual-diaphragm structure has a high efficiency and an enlarged range of audio frequency.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: September 27, 2016
    Assignee: 3-O LAB CO. LTD.
    Inventors: Dar-Ming Chiang, Jen-Luan Chen, E-Hung Lu
  • Electrostatic Electroacoustic Transducer and Fabricating Methods for the Same
    Publication number: 20150071468
    Abstract: An electrostatic electroacoustic transducer includes a first structure, a second structure and a third electrode. The third electrode is located between the first structure and the second structure. The first structure includes a first driving element, a first spacer and a first diaphragm, and the second structure includes a second driving element, a second spacer and a second diaphragm. By providing an alternating voltage source, a transformer and a bias voltage, the electrostatic electroacoustic transducer with a dual diaphragm structure has a high efficiency and an enlarged range of audio frequency.
    Type: Application
    Filed: November 20, 2013
    Publication date: March 12, 2015
    Applicant: 3-O Lab Co. Ltd.
    Inventors: Dar-Ming CHIANG, Jen-Luan CHEN, E-Hung LU