Patents by Inventor David T. Chai

David T. Chai 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).

  • Patent number: 7359850
    Abstract: The present invention relates to a spelling and encoding method for ideographic symbols, such as Chinese characters. The spelling method can provide first and second components for identifying first and second groups of ideographic symbols, wherein the two groups can have at least one common ideographic symbol correlating with the two components. For example, the two components can be a Chinese Pinyin spelling and a Four Corner Numerical Index, respectively, which can each identify a group of Chinese characters and be combined to identify one or more characters. The spelling method can further provide a third component to differentiate a plurality of ideographic symbols common to the two groups to uniquely identify each common symbol. In one embodiment, an alphanumeric spelling can be provided to uniquely identify each ideographic symbol. The encoding method can encode various alphanumeric representations of the ideographic symbols by the 7-bit ASCII standard code.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: April 15, 2008
    Inventors: David T. Chai, Sing H. Lin, Andrew A. Soong