Patents by Inventor Takayoshi Fushinuki

Takayoshi Fushinuki 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).

  • Data storage device and method for controlling the device
    Patent number: 6769087
    Abstract: When system data is written to a flash memory, first and second ECCs are generated in correspondence with the system data and its copied data. The system data and the copied data are written to the same page. The first and second ECCs are stored in the redundant area of the page. In this data storage format, even when an uncorrectable bit error occurs in one of the system data and the copied data, correct data can be read out using the other data in which the error does not occur. Since the system data and the copied data are stored in the same page, they can be read out by one operation and thus the operation performance does not deteriorate.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: July 27, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroyuki Moro, Takayoshi Fushinuki
  • Data storage device and method for controlling the device
    Publication number: 20010028523
    Abstract: When system data is written to a flash memory, first and second ECCs are generated in correspondence with the system data and its copied data. The system data and the copied data are written to the same page. The first and second ECCs are stored in the redundant area of the page. In this data storage format, even when an uncorrectable bit error occurs in one of the system data and the copied data, correct data can be read out using the other data in which the error does not occur. Since the system data and the copied data are stored in the same page, they can be read out by one operation and thus the operation performance does not deteriorate.
    Type: Application
    Filed: April 9, 2001
    Publication date: October 11, 2001
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hiroyuki Moro, Takayoshi Fushinuki