Patents by Inventor Ho Sang Au

Ho Sang Au 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).

  • Robust LCD controller
    Patent number: 7030849
    Abstract: An LCD controller (10) has a DMA unit (18) and a FIFO memory (20) for storing display data. The LCD controller also has a display data generator (26) that generates display information using a line of the display data stored in the FIFO memory in accordance with a predefined algorithm. A holding register (28) is connected to the display data generator and stores the generated display information. A multiplexer (34) selects for display either the data stored in the FIFO memory or the generated display information. The generated display information is selected when there is a bus overload indicating that the data stored in the FIFO may be erroneous.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: April 18, 2006
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Ho Sang Au, Kam Tim Cheung