公开(公告)号：US06526012B1

公开(公告)日：2003-02-25

申请号：US09559553

申请日：2000-04-27

申请人： Kenji Narumi ,  Naoyasu Miyagawa

发明人： Kenji Narumi ,  Naoyasu Miyagawa

IPC分类号： G11B700

CPC分类号： G11B7/0045 ,  G11B7/0062 ,  G11B7/126 ,  G11B7/1263 ,  G11B7/1267

摘要： An optical information recording apparatus, an optical information recording method, and an optical information recording medium that enable information signals to be recorded precisely by determining recording conditions such as recording power, edge positions of recording pulses, and the like suitably before recording information signals. An edge test signal generation circuit supplies a test signal for optimizing edge positions of recording pulses. In order to suppress the variation in intervals between edges due to mark distortion caused by overwriting, test recording is carried out using this test signal in a plurality of sectors on the optical information recording medium with a test recording start point being shifted at random in each sector by a recording start point shifting circuit. A system control circuit calculates an average of intervals between edges in test signals reproduced from the plurality of sectors and determines the difference between the average and an original interval between edges in the test signal, thus determining a compensation volume for edge positions.

公开(公告)号：US06411592B1

公开(公告)日：2002-06-25

申请号：US08598815

申请日：1996-02-09

申请人： Kenichi Nishiuchi ,  Naoyasu Miyagawa ,  Eiji Ohno ,  Nobuo Akahira

发明人： Kenichi Nishiuchi ,  Naoyasu Miyagawa ,  Eiji Ohno ,  Nobuo Akahira

IPC分类号： G11B724

CPC分类号： G11B11/10595 ,  G11B7/0045 ,  G11B7/00456 ,  G11B7/005 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00736 ,  G11B7/08505 ,  G11B7/08511 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/094 ,  G11B7/126 ,  G11B7/1267

摘要： An optical information recording and reproducing apparatus for recording and reproducing an information signal on/from both concave portions and convex portions of guide grooves formed on a recording medium is disclosed. The optical information recording and reproducing apparatus includes: an optical portion for focusing a light beam emitted from a light source on the recording medium; a focusing control portion for controlling a focal point of the light beam; a tracking control portion for controlling the position of the light beam; a selection portion for selecting which of the concave portions and the convex portions of the guide grooves are used for recording or reproducing; a polarity inverting portion for inverting the polarity of an output signal from the tracking control portion depending on a result selected by the selection portion; a waveform setting portion for setting a modulation pattern for the light; and a signal reproduction portion for demodulating the information signal from a light reflected or transmitted by recorded marks recorded on the recording medium; wherein at least one of the focusing control portion, the tracking control portion, the waveform setting portion and the signal reproduction portion has at least two kinds of operation conditions for recording and reproducing the information signal on/from the concave portions and the convex portions of the guide grooves, and wherein the operation conditions are selected depending on the result selected by the selection portion.

摘要翻译： 公开了一种用于在形成在记录介质上的引导槽的凹部和凸部上记录和再现信息信号的光学信息记录和再现装置。 光信息记录和再现装置包括：用于将从光源发射的光束聚焦在记录介质上的光学部分; 用于控制光束的焦点的聚焦控制部分; 跟踪控制部分，用于控制光束的位置; 用于选择引导槽的哪个凹部和凸部用于记录或再现的选择部分; 极性反转部分，用于根据由选择部分选择的结果来反转来自跟踪控制部分的输出信号的极性; 用于设置光的调制图案的波形设置部分; 以及信号再现部分，用于从记录在记录介质上的记录标记反射或发射的光解调信息信号; 其中聚焦控制部分，跟踪控制部分，波形设置部分和信号再现部分中的至少一个具有至少两种操作条件，用于在凹部和凸部的凹部和凸部之间记录和再现信息信号 引导凹槽，并且其中根据由选择部分选择的结果选择操作条件。

公开(公告)号：US6118752A

公开(公告)日：2000-09-12

申请号：US674583

申请日：1996-07-02

申请人： Naoyasu Miyagawa ,  Yasuhiro Gotoh

发明人： Naoyasu Miyagawa ,  Yasuhiro Gotoh

IPC分类号： G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/09 ,  G11B7/24 ,  G11B7/24079 ,  G11B7/24085 ,  G11B11/105

CPC分类号： G11B7/0938 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0904 ,  G11B7/24085 ,  G11B11/10586 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/24 ,  G11B7/24079

摘要： An optical information recording medium according to the present invention includes at least one groove track and at least one land track allowing information to be recorded on or reproduced from the groove track and the land track, the groove track and the land track adjoining each other. The optical information recording medium further includes: an identification signal region including a pre-pit array, the pre-pit array indicating identification information concerning the groove track and the land track; and a servo control region disposed ahead of the identification signal region along the groove track and the land track, the servo control region including wobble pits positioned so as to shift to opposite sides of a center line of either the groove track or the land track.

摘要翻译： 根据本发明的光学信息记录介质包括至少一个凹槽轨道和至少一个脊迹道，其允许将信息记录在凹槽轨道和脊迹道，凹槽轨道和脊迹道之间彼此相邻的凹槽轨迹和/ 所述光信息记录介质还包括：包括预凹坑阵列的识别信号区域，所述预凹坑阵列指示关于所述凹槽轨道和所述脊迹轨迹的识别信息; 以及伺服控制区域，其设置在沿着凹槽轨道和槽脊轨迹的识别信号区域前方，所述伺服控制区域包括摆动凹坑，定位成移动到凹槽轨道或槽脊轨迹的中心线的相对侧。

公开(公告)号：US5452284A

公开(公告)日：1995-09-19

申请号：US120216

申请日：1993-09-13

申请人： Naoyasu Miyagawa ,  Yasuhiro Gotoh

发明人： Naoyasu Miyagawa ,  Yasuhiro Gotoh

IPC分类号： G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/085 ,  G11B7/09 ,  G11B7/095 ,  G11B19/04 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B7/00

CPC分类号： G11B7/24085 ,  G11B19/04 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B7/005 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/08505 ,  G11B7/0941 ,  G11B2220/20 ,  G11B7/0045 ,  G11B7/0901 ,  G11B7/0953 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21

摘要： Both concave and convex portions formed spirally or concentrically on an optical information recording medium are used as recording tracks, in which identification signals including position information on the optical information recording medium and so on are recorded in advance, and information signals are recorded by use of the change of a local optical constant or a physical shape caused by radiating a light beam. The identification signals are disposed in recording tracks of the concave portions, and shifted before and behind in the track direction so as not to be adjacent to each other in the radial direction.

摘要翻译： 使用螺旋状或同心地形成在光学信息记录介质上的凹凸部分作为记录磁道，其中预先记录包括关于光学信息记录介质等的位置信息的识别信号，并且使用 通过辐射光束引起的局部光学常数或物理形状的变化。 识别信号被设置在凹部的记录轨道中，并且在轨道方向上前后移动，以便在径向方向上彼此不相邻。

公开(公告)号：US5448551A

公开(公告)日：1995-09-05

申请号：US249381

申请日：1994-05-25

申请人： Naoyasu Miyagawa ,  Eiji Ohno ,  Kenichi Nishiuchi

发明人： Naoyasu Miyagawa ,  Eiji Ohno ,  Kenichi Nishiuchi

IPC分类号： B41M5/26 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/0055 ,  G11B7/006 ,  G11B7/007 ,  G11B7/085 ,  G11B7/09 ,  G11B7/125 ,  G11B7/24 ,  G11B7/26

CPC分类号： G11B7/00718 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/126 ,  G11B7/24079 ,  G11B7/0045 ,  G11B7/0901

摘要： Both guide grooves and lands of an optical information recording medium constitute information tracks, the depth of the guide groove being between approximately .lambda./8 and approximately .lambda./4.7 in optical length and the width of the guide groove being between 0.34R and R, where R represents the beam diameter of a write laser beam on the record film and the power for writing information on each guide groove being differentiated from that for writing information on each land.

摘要翻译： 光学信息记录介质的两个引导凹槽和平台都构成信息轨迹，导光槽的深度在光学长度上在大约λ/ 8和大约λ/ 4.7之间，导向槽的宽度在0.34R和R之间，其中 R表示写入激光束在记录膜上的光束直径，并且用于在每个引导槽上写入信息的功率与用于在每个焊盘上写入信息的功率不同。