Patents by Inventor Hsien-Ming Chang

Hsien-Ming Chang 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).

  • Publication number: 20090293935
    Abstract: A solar collector includes a base having an internal chamber therein, a plurality of openings, and low reflection materials at an inner periphery thereof, a lens unit for enabling the sun's rays to penetrate into the internal chamber through the openings, an optical transfer unit disposed in the internal chamber to receive the sun's rays and transform that into electric energy, and at least one heat transfer member mounted to the base to transfer heat energy transformed by the sun's rays that is received by the low reflection materials. Thus, the solar collector of the present invention is capable of receiving the sun's rays with different incident angles to transform the sun's rays into the electric energy and the heat energy.
    Type: Application
    Filed: July 31, 2008
    Publication date: December 3, 2009
    Applicant: NATIONAL FORMOSA UNIVERSITY
    Inventors: Chung-Pin Liao, Chang-Jiang Cheng, Hsien-Ming Chang
  • Patent number: 7288004
    Abstract: A memory stick convert device includes an upper housing and lower housing and a convert interface. An assembly of the upper housing and the lower housing has the same type of connector as the Memory Stick(Pro) Duo does at an end. The assembly includes a cavity to accommodate a Micro-SD stick. The convert interface is sandwiched between the upper housing and the lower housing to convert signal formats between the Memory Stick (Pro) Duo and the Micro-SD.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: October 30, 2007
    Assignees: Siliconmotion Inc., Casion Technology Co., Ltd
    Inventors: Yu-Ling Hou, Hsien-Ming Chang
  • Publication number: 20070243766
    Abstract: A memory stick convert device includes an upper housing and lower housing and a convert interface. An assembly of the upper housing and the lower housing has the same type of connector as the Memory Stick (Pro) Duo does at an end. The assembly includes a cavity to accommodate a Micro-SD stick. The convert interface is sandwiched between the upper housing and the lower housing to convert signal formats between the Memory Stick (Pro) Duo and the Micro-SD.
    Type: Application
    Filed: May 31, 2006
    Publication date: October 18, 2007
    Inventors: Yu-Ling Hou, Hsien-Ming Chang
  • Patent number: 6765514
    Abstract: A method and apparatus for providing fast data recovery with adaptive pulse code modulation (ADPCM) coding wherein, an ADPCM encoder periodically records the compressional parameters in memory together with regular compressed codes, and an ADPCM decoder retrieves the previously saved compressional parameters when reading the regular data from memory. In case any error occurs in the data compression and decompression processes which would cause a data divergence in the output of the ADPCM decoder, the previously saved compressional parameters can be used to correct the output data, thus enabling fast data recovery in the data outputting process without affecting downstream data in the data stream.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: July 20, 2004
    Assignee: Avid Electronics Corp.
    Inventors: Hsien-Ming Chang, Chung-Liang Yen
  • Publication number: 20040066319
    Abstract: The present invention relates to a method and apparatus for providing fast data recovery with adaptive pulse code modulation (ADPCM) coding. In this coding technique, an ADPCM encoder periodically records the compressional parameters in memory together with regular compressed codes, and an ADPCM decoder retrieves the previously saved compressional parameters when reading the regular data from memory. In case any error occurs in the data compression and decompression processes which would cause a data divergence in the output of the ADPCM decoder, the previously saved compressional parameters can be used to correct the output data, thus enabling fast data recovery in the data outputting process without affecting downstream data in the data stream. To further enhance data safety, Gray Code is applied in the compression process before writing data to memory.
    Type: Application
    Filed: December 11, 2002
    Publication date: April 8, 2004
    Inventors: Hsien-Ming Chang, Chung-Liang Yen