Patents by Inventor Andy P. Chan

Andy P. Chan 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).

  • Expandable digital error detection and correction device
    Patent number: 5331645
    Abstract: A pair of similar, 32-bit, error detection and correction devices, including a "lower 32-bit" device (210) and an "upper 32-bit" device (212) are configured as a 64-bit, error detection and correction system. When a (64-bit) word of data is being stored in memory, the lower 32-bit device (210) develops, on an inter-device bus (226), signals representing generation partial check bits. The upper 32-bit device (212) receives the partial check bits (226), and develops signals representing final check bits (236) for storage with the corresponding data word in memory (220 and 234). When a (64-bit) word of data is being retrieved from memory, from signals representing check bits retrieved from memory (222), the lower 32-bit device (210) generates on an inter-device bus (224), signals representing correction partial syndromes.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: July 19, 1994
    Assignee: Integrated Device Technology, Inc.
    Inventors: Michael J. Miller, Andy P. Chan, Robert W. Stodieck, John R. Mick