U.S. Patents

  • U.S. Pat. No. 7,533,399, Ma, Guo, Zhu, Wang, Chen, Yao, Programming Guide Content Collection and Recommendation System for Viewing on a Portable Device, May 12, 2009.
  • U.S. Pat. No. 7,289,795, Ma, Bushmitch, Event Moderation for Event Publishing Environments, Oct. 30, 2007
  • U.S. Pat. No. 7,092,567, Ma, Guo, Li, Tong, Yao and Zhu, Post-processing System and Method for Correcting Maching Recognized Text, August 15, 2006.
  • U.S. Pat. No. 7,043,746, Ma, System and Method for Re-assuring Delivery of Television Advertisements Non-intrusively in Real-time Broadcast and Time Shift Recording, May 9, 2006.
  • U.S. Pat. No. 6,940,617, Ma and Guo, A Printer Control Interface System and Method with Handwriting Discrimination Capability, Sept 6, 2005.
  • U.S. Pat. No. 6,909,805, Ma and Guo, Detecting and Utilizing Add-on Information from a Scanned Document Image, June 21, 2005.
  • U.S. Pat. No. 6,681,044, Ma and Zhang, Retrieval of Chinese Handwritten Annotations Based on Radical Model, Jan 20, 2004.
  • U.S. Pat. No. 6,674,919, Ma and Guo, Method for Determining the Skew Angle of a Two-dimensional Barcode, Jan. 6, 2004.
  • U.S. Pat. No. 6,674,900, Ma and Yi, Method for Extracting Titles from Digital Images, Jan. 6, 2004.
  • U.S. Pat. No. 6,565,003, Ma, Method for Locating and Reading a Two-dimensional Barcode, May 20, 2003.
  • U.S. Pat. No. 6,371,373, Ma and Kanai, Method for Reading a Two-dimensional Barcode, April 16, 2002.
  • U.S. Pat. No. 6,082,619, Ma and Kanai, Method for Locating and Reading a Two-dimensional Barcode, July 4, 2000.
  • U.S. Pat. No. 5,889,506, Lopresti, Ma, Tomkins and Zhou, Video User's Environment, March 30, 1999.
  • U.S. Pat. No. 5,832,474, Lopresti, Ma and Zhou, Document Search and Retrieval System with Partial Match Searching of User-drawn Annotations, November 3, 1998.