Patents by Inventor Xiao Bei Zhang

Xiao Bei Zhang 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).

  • Process for independently protecting two dimensional codes from one or more burst errors patterns
    Patent number: 5771245
    Abstract: All error correction computations for correcting decode errors that corrupt a binary message that is encoded in a two dimensional code, such as a two dimensional self-clocking glyph code, are performed on byte aligned (or, more generally, symbol aligned) symbol sets that span the message but no other variables.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: June 23, 1998
    Assignee: Xerox Corporation
    Inventor: Xiao Bei Zhang