Patents by Inventor Chuang Ernest

Chuang Ernest 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).

  • Encoding method and apparatus therefor, and optical-disk recording method and apparatus therefor
    Publication number: 20040170104
    Abstract: For encoding a current data word to be encoded, a most suitable redundant signal for the current data word to be encoded is generated by referring to a next data word to be encoded, that is, using a look-ahead decision method. The current data word to be encoded is encoded by using this redundant signal. A low-frequency component of the encoded data is effectively suppressed without decreasing encoding efficiency, by using both a regular substitution code and a stochastic substitution code, and a look-ahead determination algorithm for changing the length of words of a data segment, based on stochastic occurrence of a substitution word.
    Type: Application
    Filed: December 11, 2003
    Publication date: September 2, 2004
    Applicant: Sony Corporation
    Inventor: Chuang Ernest