Patents by Inventor Yi-Keng Chen

Yi-Keng Chen 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).

  • Storage unit management method, memory controller and memory storage device using the same
    Patent number: 9274943
    Abstract: A storage unit management method for managing a plurality of physical units in a rewritable non-volatile memory module is provided, wherein the physical units are at least grouped into a data area and a spare area. The method includes configuring a plurality of logical units for mapping to the physical units belonging to the data area, and determining whether the rewritable non-volatile memory module contains cold data. The method further includes performing a first wear-leveling procedure on the physical units if it is determined that the rewritable non-volatile memory module does not contain any cold data, and performing a second wear-leveling procedure on the physical units if it is determined that the rewritable non-volatile memory module contains the cold data.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: March 1, 2016
    Assignee: PHISON ELECTRONICS CORP.
    Inventors: Chih-Kang Yeh, Yi-Keng Chen
  • STORAGE UNIT MANAGEMENT METHOD, MEMORY CONTROLLER AND MEMORY STORAGE DEVICE USING THE SAME
    Publication number: 20130304965
    Abstract: A storage unit management method for managing a plurality of physical units in a rewritable non-volatile memory module is provided, wherein the physical units are at least grouped into a data area and a spare area. The method includes configuring a plurality of logical units for mapping to the physical units belonging to the data area, and determining whether the rewritable non-volatile memory module contains cold data. The method further includes performing a first wear-leveling procedure on the physical units if it is determined that the rewritable non-volatile memory module does not contain any cold data, and performing a second wear-leveling procedure on the physical units if it is determined that the rewritable non-volatile memory module contains the cold data.
    Type: Application
    Filed: July 30, 2012
    Publication date: November 14, 2013
    Applicant: PHISON ELECTRONICS CORP.
    Inventors: Chih-Kang Yeh, Yi-Keng Chen