Invention Grant
US07656759B2 Information recording and reproducing device suppressing erasure of data when power interruption occurs during data recording 失效
在数据记录期间发生电源中断时,信息记录和再现装置抑制数据擦除

  • Patent Title: Information recording and reproducing device suppressing erasure of data when power interruption occurs during data recording
  • Patent Title (中): 在数据记录期间发生电源中断时,信息记录和再现装置抑制数据擦除
  • Application No.: US11524625
    Application Date: 2006-09-21
  • Publication No.: US07656759B2
    Publication Date: 2010-02-02
  • Inventor: Tsuyoshi Kamitani
  • Applicant: Tsuyoshi Kamitani
  • Applicant Address: JP Osaka
  • Assignee: Funai Electric Co., Ltd.
  • Current Assignee: Funai Electric Co., Ltd.
  • Current Assignee Address: JP Osaka
  • Agency: Osha • Liang LLP
  • Priority: JP2005-274327 20050921
  • Main IPC: G11B5/09
  • IPC: G11B5/09
Information recording and reproducing device suppressing erasure of data when power interruption occurs during data recording
Abstract:
In a record operation mode, a nonvolatile memory stores a record end address. In a restoring operation mode, the record end address stored in the nonvolatile memory is read, and a record end address in an FDCB is read and is compared with the record end address read from the nonvolatile memory to determine whether these addresses match with each other or not. When the record end address in the FDCB is different from the record end address stored in the nonvolatile memory, the data in the FDCB is updated based on the record end address stored in the nonvolatile memory.
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