Patents by Inventor Yi-Wen Chang

Yi-Wen 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: 20080031445
    Abstract: A key binding method capable of dynamic key generation includes the following steps: (a) dynamically generating key information for an identification-pending device; (b) transforming the key information into an image; and (c) transferring the key information to an object device through reading of the image. Applications of the method are also disclosed.
    Type: Application
    Filed: July 12, 2005
    Publication date: February 7, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Chih-Jen Lee, Yi-Wen Chang
  • Patent number: 6389166
    Abstract: An on-line handwritten Chinese character recognition apparatus based on character shapes uses a reference file for look-up of compressed codes-sequence codes in a conventional input method founded on dismantling by character shapes as reference when comparing character to reduce the number of matching templates required in the on-line handwritten Chinese character recognition system and to lower the time for matching. Input handwritten Chinese characters are dismantled into constituting radicals. Thereafter, with reference to code retrieving rules of the input method, and based on the character composing method of handwritten characters, radicals for comparison are retrieved. Then, the compression formula of the input method is used to compress the codes of the base radicals, and the compressed codes are compared with contents of the input method reference file to obtain the sequence codes of candidate characters.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: May 14, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yi-Wen Chang, June-Jei Kuo