Patents by Inventor Seisuke Hirosawa

Seisuke Hirosawa 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).

  • Patent number: 7483297
    Abstract: The present invention provides a nonvolatile memory card in which a program is added, modified, changed, or the like by selecting arbitrary firmware on a flash memory from a plurality of pieces of firmware on flash memories. In a memory card, in addition to a program stored in a built-in ROM, firmware on flash memories as programs for adding, changing, modifying, or the like of a function such as a patch program are stored. Firmware on a flash memory which is desired to be made valid is set in a parameter sector or the like and is loaded into an external RAM, and the CPU of a control logic executes a process.
    Type: Grant
    Filed: October 13, 2007
    Date of Patent: January 27, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Makoto Mori, Seisuke Hirosawa, Atsushi Shikata
  • Publication number: 20080046642
    Abstract: The present invention provides a nonvolatile memory card in which a program is added, modified, changed, or the like by selecting arbitrary firmware on a flash memory from a plurality of pieces of firmware on flash memories. In a memory card, in addition to a program stored in a built-in ROM, firmware on flash memories as programs for adding, changing, modifying, or the like of a function such as a patch program are stored. Firmware on a flash memory which is desired to be made valid is set in a parameter sector or the like and is loaded into an external RAM, and the CPU of a control logic executes a process.
    Type: Application
    Filed: October 13, 2007
    Publication date: February 21, 2008
    Inventors: Makoto Mori, Seisuke Hirosawa, Atsushi Shikata
  • Patent number: 7298649
    Abstract: The present invention provides a nonvolatile memory card in which a program is added, modified, changed, or the like by selecting arbitrary firmware on a flash memory from a plurality of pieces of firmware on flash memories. In a memory card, in addition to a program stored in a built-in ROM, firmware on flash memories as programs for adding, changing, modifying, or the like of a function such as a patch program are stored. Firmware on a flash memory which is desired to be made valid is set in a parameter sector or the like and is loaded into an external RAM, and the CPU of a control logic executes a process.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: November 20, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Makoto Mori, Seisuke Hirosawa, Atsushi Shikata
  • Publication number: 20060106973
    Abstract: The present invention provides a nonvolatile memory card in which a program is added, modified, changed, or the like by selecting arbitrary firmware on a flash memory from a plurality of pieces of firmware on flash memories. In a memory card, in addition to a program stored in a built-in ROM, firmware on flash memories as programs for adding, changing, modifying, or the like of a function such as a patch program are stored. Firmware on a flash memory which is desired to be made valid is set in a parameter sector or the like and is loaded into an external RAM, and the CPU of a control logic executes a process.
    Type: Application
    Filed: November 21, 2005
    Publication date: May 18, 2006
    Inventors: Makoto Mori, Seisuke Hirosawa, Atsushi Shikata
  • Patent number: 6996005
    Abstract: The present invention provides a nonvolatile memory card in which a program is added, modified, changed, or the like by selecting arbitrary firmware on a flash memory from a plurality of pieces of firmware on flash memories. In a memory card, in addition to a program stored in a built-in ROM, firmware on flash memories as programs for adding, changing, modifying, or the like of a function such as a patch program are stored. Firmware on a flash memory which is desired to be made valid is set in a parameter sector or the like and is loaded into an external RAM, and the CPU of a control logic executes a process.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: February 7, 2006
    Assignee: Renesas Technology Corp.
    Inventors: Makoto Mori, Seisuke Hirosawa, Atsushi Shikata
  • Publication number: 20040228161
    Abstract: The present invention provides a nonvolatile memory card in which a program is added, modified, changed, or the like by selecting arbitrary firmware on a flash memory from a plurality of pieces of firmware on flash memories. In a memory card, in addition to a program stored in a built-in ROM, firmware on flash memories as programs for adding, changing, modifying, or the like of a function such as a patch program are stored. Firmware on a flash memory which is desired to be made valid is set in a parameter sector or the like and is loaded into an external RAM, and the CPU of a control logic executes a process.
    Type: Application
    Filed: November 26, 2003
    Publication date: November 18, 2004
    Applicant: Renesas Technology Corp.
    Inventors: Makoto Mori, Seisuke Hirosawa, Atsushi Shikata
  • Publication number: 20030225962
    Abstract: The present invention provides a memory card realizing a simplified erasing process and shortened process time as a whole and capable of preventing an illegal access to the memory card discarded, and a system using the memory card. A system includes a flash memory card and a host device which is electrically connected to the flash memory card and controls the operation of the flash memory card. The system includes an erase command for executing an operation of erasing information in a data area in a flash memory and, in addition, a purge command for executing an operation of erasing all of information in the data area and a management information area in the flash memory. The purge command is issued by the host device to the flash memory card, thereby enabling the whole areas in the flash memory to be erased by the single issue of the purge command without issuing the erase command a plurality of times.
    Type: Application
    Filed: May 12, 2003
    Publication date: December 4, 2003
    Applicants: Hitachi, Ltd., Hitachi ULSI Systems Co., Ltd.
    Inventor: Seisuke Hirosawa
  • Patent number: 6584014
    Abstract: A nonvolatile storage system includes a plurality of nonvolatile memories and a control unit. When having detected a write-in error that occurred at an operation-subject nonvolatile memory, the control unit can set inter-chip alternate information indicating that a storage region related to the write-in error has been replaced by a storage region of any other nonvolatile memory of the plurality of nonvolatile memories to the nonvolatile memory of the storage region related to this error, so that when having received the inter-chip alternate information from the operation-subject nonvolatile memory, the control unit can change the operation subject from the current operation-subject nonvolatile memory to any other nonvolatile memory indicated by this inter-chip alternate information. It is thus possible to rescue a write-in error which occurred at one nonvolatile memory by replacing it with any other chip.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: June 24, 2003
    Assignees: Hitachi, Ltd., Hitachi ULSI Systems Co., Ltd.
    Inventors: Seisuke Hirosawa, Masaki Shirai, Takeshi Suzuki, Katsumi Ouchi
  • Publication number: 20020181285
    Abstract: A nonvolatile storage system includes a plurality of nonvolatile memories and a control unit. When having detected a write-in error that occurred at an operation-subject nonvolatile memory, the control unit can set inter-chip alternate information indicating that a storage region related to the write-in error has been replaced by a storage region of any other nonvolatile memory of the plurality of nonvolatile memories to the nonvolatile memory of the storage region related to this error, so that when having received the inter-chip alternate information from the operation-subject nonvolatile memory, the control unit can change the operation subject from the current operation-subject nonvolatile memory to any other nonvolatile memory indicated by this inter-chip alternate information. It is thus possible to rescue a write-in error which occurred at one nonvolatile memory by replacing it with any other chip.
    Type: Application
    Filed: February 26, 2002
    Publication date: December 5, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Seisuke Hirosawa, Masaki Shirai, Takeshi Suzuki, Katsumi Ouchi