Patents by Inventor Gan-How Chang

Gan-How 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: 20100241865
    Abstract: A one-time password system capable of defending against on-line phishing attacks. The one-time password system is composed mainly of a Java smart card, a pre-end password calculation module, a post-end password registration module, a post-end password verification module and a post-end database. In the system, a Java smart card is used and message authentication code technology is relied upon to associate a login URL with a one-time password generation process, so that a user identification process against on-line phishing attacks can be achieved.
    Type: Application
    Filed: March 19, 2009
    Publication date: September 23, 2010
    Applicant: Chunghwa Telecom Co., Ltd
    Inventors: Ming-Che Chang, Han-Chieh Sun, Pao-Chung Chang, Gan-How Chang
  • Patent number: 4965458
    Abstract: An apparatus for translating oracle-bone scripture style characters into formal style characters, and for translating formal style characters into oracle-bone scripture style characters includes a scanner for scanning printed characters and for providing a digital representation of the thus scanned printer characters. The printed characters are one of either the oracle-bone scripture style characters or the formal style characters. An oracle-bone scripture style and formal style character stroke feature analysis and learning unit is provided for extracting a feature of each scanned printed character, and for storing into an oracle-bone scripture style and formal style feature space storage device the thus extracted features of each scanned printed character according to a learning and analysis process.
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: October 23, 1990
    Assignee: Telecommunication Laboratories, Directorate General of Telecommunications , Ministry of Communications
    Inventors: Bor-Shenn Jeng, Gan-How Chang, Kuang-Yao Chang, Jsann-Shyong Liu, Jangkeng Lin, Jei-Shoung Hwang, T-Min Wu, Keh-Hwa Shyu, Char-Hin Miou, Luke Can
  • Patent number: 4850026
    Abstract: A Chinese multifont recognition system, in which a scanner can input Chinese character pattern data into a recognition system to recognize all characters to complete the chinese input operation. The recognition system can recognize various printed fonts and chinese characters in various sizes. The recognition method is arranged that all the Chinese characters to be recognized are to be put in the system; all the features of a Chinese character are extracted, and stored in a feature data base. Later, any input Chinese character will recognized in accordance with the data base. Since it is a technique of extracting the features of a character pattern, the system can recognize the multifont Chinese characters. If it is necessary to expand the number of characters in the data base established originally, a character feature learning system may be used for storing new characters therein.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: July 18, 1989
    Assignee: Telecommunications Laboratories Dir. Gen'l of Telecom. Ministry of Communications
    Inventors: Sor-Shenn Jeng, Gan-How Chang, Kuang-Yao Chang, Jang-Keng Lin, Tsann-Shyong Liu, Rong-Hauh Ju, Hsien-Ju Chang, Yung-Lai Wu, Chih-Yen Yang, Jei-Shyong Huang, Shang-Ju Hsieh, Chun-Chu Wu