发明申请

  • 专利标题: OPTICAL INFORMATION RECORDING METHOD, OPTICAL INFORMATION RECORDING DEVICE, OPTICAL INFORMATION REPRODUCTION METHOD, OPTICAL INFORMATION REPRODUCTION DEVICE, AND OPTICAL INFORMATION RECORDING MEDIUM
  • 专利标题(中): 光信息记录方法,光信息记录装置,光信息再现方法,光信息再现装置和光信息记录介质
  • 申请号: US13516000
    申请日: 2010-12-16
  • 公开(公告)号: US20120294135A1
    公开(公告)日: 2012-11-22
  • 发明人: Tomoyasu TakaokaShigeru FurumiyaAtsushi Nakamura
  • 申请人: Tomoyasu TakaokaShigeru FurumiyaAtsushi Nakamura
  • 优先权: JP2009-287119 20091218
  • 国际申请: PCT/JP2010/007309 WO 20101216
  • 主分类号: G11B7/0045
  • IPC分类号: G11B7/0045
OPTICAL INFORMATION RECORDING METHOD, OPTICAL INFORMATION RECORDING DEVICE, OPTICAL INFORMATION REPRODUCTION METHOD, OPTICAL INFORMATION REPRODUCTION DEVICE, AND OPTICAL INFORMATION RECORDING MEDIUM
摘要:
Information is recorded and reproduced with high quality by all of the information layers of an optical information recording medium. A recording wavelength generator (112) selects control parameters of a recording pulse sequence for forming marks, on the basis of combinations of a mark length of a mark, a first space length of a first space immediately before the mark, and a second space length of a second space immediately after the mark. A laser drive circuit (111) records the marks by the recording pulse sequence determined by the selected control parameters. The first space length is classified into m types (m is an integer) and the second space length is classified into n types (n is an integer). An absolute value of a difference between two predetermined control parameters from among (m×n) control parameters selected during recording on a second information layer located on an incidence side of the laser beam with respect to a predetermined first information layer from among N information layers is equal to or greater than an absolute value of a difference between two predetermined control parameters from among the (m×n) control parameters selected during recording on the first information layer.
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