Patents by Inventor Lien-Shui TSAI

Lien-Shui TSAI 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).

  • Speaker enclosure and method for fabricating the same
    Patent number: 9131301
    Abstract: The invention relates to a speaker enclosure and a method for fabricating the same. The speaker enclosure comprises a main housing, a top cover, and a bottom plate. The main housing fabricated by a molding process and having a continuous side wall, end faces, and an inner space, wherein, a plurality of ribs are formed on the inner surface of the continuous side wall, so that the inner surface is an irregular surface. Therefore, the reflected direction of sound waves generated by a speaker unit in the inner space will be changed and the amplitude of sound waves will be decreased by an irregular surface formed in the inner surface of the continuous side wall. As the result, standing waves and echoes mixing with original sound waves may be eliminated.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: September 8, 2015
    Assignees: USHER AUDIO TECHNOLOGY, OS-TECH PRECISION CORPORATION
    Inventors: Lien-Shui Tsai, Heng-Tzu Tseng, Chao-Liang Yin
  • SPEAKER ENCLOSURE AND METHOD FOR FABRICATING THE SAME
    Publication number: 20150027805
    Abstract: The invention relates to a speaker enclosure and a method for fabricating the same. The speaker enclosure comprises a main housing, a top cover, and a bottom plate. The main housing fabricated by a molding process and having a continuous side wall, end faces, and an inner space, wherein, a plurality of ribs are formed on the inner surface of the continuous side wall, so that the inner surface is an irregular surface. Therefore, the reflected direction of sound waves generated by a speaker unit in the inner space will be changed and the amplitude of sound waves will be decreased by an irregular surface formed in the inner surface of the continuous side wall. As the result, standing waves and echoes mixing with original sound waves may be eliminated.
    Type: Application
    Filed: July 29, 2014
    Publication date: January 29, 2015
    Inventors: Lien-Shui TSAI, Heng-Tzu TSENG, Chao-Liang YIN