专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明申请

US20110161994A1 OPTICAL DISC DEVICE AND CONTROL METHOD OF OPTICAL DISC 失效
标题翻译：光盘设备及光盘控制方法
公开(公告)号：US20110161994A1
公开(公告)日：2011-06-30
申请号：US12960171
申请日：2010-12-03
申请人： Shuichi MINAMIGUCHI , Hiroharu Sakai , Hajime Nishimura
发明人： Shuichi MINAMIGUCHI , Hiroharu Sakai , Hajime Nishimura
IPC分类号： G11B7/12
CPC分类号： G11B7/005 , G11B7/00736 , G11B7/08511 , G11B7/126 , G11B2007/0013
摘要： An optical disc device comprising: a controller for reading data from an optical disc having a plurality of recording layers, wherein: the controller, in shifting a focus of the laser light from a first layer to a second layer, performs a first change that changes a setting on the high frequency signal to a predetermined value at which the high frequency signal is superimposed to suppress peak power of the drive signal if a light density of the second layer is higher than a light density of the first layer; the controller shifts the focus from the first layer to the second layer; and the controller, after the focus has been shifted, performs a second change that changes the setting on the high frequency signal to a predetermined value at which the high frequency signal is superimposed to increase the peak power of the drive signal.
摘要翻译：一种光盘装置，包括：控制器，用于从具有多个记录层的光盘读取数据，其中：所述控制器在将激光的焦点从第一层移动到第二层时，执行改变的第一改变如果所述第二层的光密度高于所述第一层的光密度，则将所述高频信号的设置设置为叠加所述高频信号的预定值，以抑制所述驱动信号的峰值功率; 控制器将焦点从第一层移动到第二层; 并且控制器在焦点移动之后执行将高频信号上的设置改变为叠加高频信号的预定值的第二改变，以增加驱动信号的峰值功率。

22. 发明授权

US07944785B2 Optical disc recording/reproducing apparatus and focus-servo method thereof 有权
标题翻译：光盘记录/再现装置及其聚焦伺服方法
公开(公告)号：US07944785B2
公开(公告)日：2011-05-17
申请号：US11474506
申请日：2006-06-26
申请人： Toru Kawashima , Hiroharu Sakai , Takeyoshi Kataoka , Motoyuki Suzuki
发明人： Toru Kawashima , Hiroharu Sakai , Takeyoshi Kataoka , Motoyuki Suzuki
IPC分类号： G11B7/09
CPC分类号： G11B7/0908 , G11B7/00718
摘要： A focus-servo control method of an optical disc recording/reproducing apparatus, for recording or reproducing information onto/from an optical disc having a track with a land and a groove, which are formed in a spiral manner on an information recording surface thereof, the optical disc recording/reproducing apparatus including an objective lens, the method comprising steps of: moving an optical spot from the land to the groove or from the groove to the land through a L/G exchange portion therebetween and moving a position of the objective lens from a land position to a groove position by gradually changing a focus offset value for the land to a focus offset value for the groove from a position located before the L/G exchange portion, when the optical spot moves from the land to the groove.
摘要翻译：一种光盘记录/再现装置的聚焦伺服控制方法，用于在信息记录表面上以螺旋方式形成有具有纹间和凹槽的光盘的信息记录/再现信息，该光盘记录/重放装置包括一个物镜，该方法包括以下步骤：通过其间的L / G交换部分将光点从岸台移动到槽或从槽到陆地，并移动目标位置通过从位于L / G交换部之前的位置逐渐地改变该区域的聚焦偏移值至该凹槽的聚焦偏移值，当光点从该区域移动到该凹槽时，从该位置到该凹槽位置的透镜。

23. 发明授权

US07733748B2 Optical disk apparatus method for compensating recording power for the same 失效
标题翻译：用于补偿其记录功率的光盘装置方法
公开(公告)号：US07733748B2
公开(公告)日：2010-06-08
申请号：US11851434
申请日：2007-09-07
申请人： Hiroharu Sakai
发明人： Hiroharu Sakai
IPC分类号： G11B7/00
CPC分类号： G11B7/0956 , G11B7/1263
摘要： In a method for compensating recording power, being suitable for an optical disk apparatus, applying the WOPC therein, as a means for compensating recording power during recording operation, and also an optical disk apparatus applying the same therein, wherein the recording operation is interrupted, when a predetermined amount of data is recorded continuously, to determine the recording power for when recoding next, from the recoding condition onto the optical disk just before interruption thereof, and thereby starting the recording, with the recording power determined from that just after said interruption thereof, wherein an adjustment is made on a tilt angle of an optical pickup when the recording power, which is determined when interrupting the recording operation, exceeds a predetermined threshold value, and the recording is started just after said interruption, with the recording power onto the optical disk just before it is interrupted. Further, by detecting the recording power, again, by reproducing an end portion just before the interruption, or by reducing the recording power determined, the recording is started just after that interruption thereof, with the said reduced recording power.
摘要翻译：在用于补偿记录功率的方法中，适用于光盘装置，在其中施加WOPC作为用于在记录操作期间补偿记录功率的装置，以及其中应用该WOPC的光盘装置，其中记录操作被中断，当连续记录预定数量的数据时，为了确定下一次重新编码时的记录功率，从刚刚在其中断之前的重新编码状态到光盘上，从而开始记录，其中记录功率是从刚才在所述中断之后确定的其中当在中断记录操作时确定的记录功率超过预定阈值时，对光学拾取器的倾斜角进行调整，并且在所述中断之后立即开始记录，其中记录功率被在它被中断之前的光盘。此外，通过再次检测记录功率，通过再现刚好在中断之前的端部，或者通过降低确定的记录功率，在所述中断之后，以所述降低的记录功率开始记录。

24. 发明申请

US20080112286A1 OPTICAL DISK APPARATUS AND METHOD FOR COMPENSATING RECORDING POWER FOR THE SAME 失效
标题翻译：光盘装置和用于对其进行记录功率的方法
公开(公告)号：US20080112286A1
公开(公告)日：2008-05-15
申请号：US11851434
申请日：2007-09-07
申请人： Hiroharu Sakai
发明人： Hiroharu Sakai
IPC分类号： G11B5/00
CPC分类号： G11B7/0956 , G11B7/1263
摘要： In a method for compensating recording power, being suitable for an optical disk apparatus, applying the WOPC therein, as a means for compensating recording power during recording operation, and also an optical disk apparatus applying the same therein, wherein the recording operation is interrupted, when a predetermined amount of data is recorded continuously, to determine the recording power for when recoding next, from the recoding condition onto the optical disk just before interruption thereof, and thereby starting the recording, with the recording power determined from that just after said interruption thereof, wherein an adjustment is made on a tilt angle of an optical pickup when the recording power, which is determined when interrupting the recording operation, exceeds a predetermined threshold value, and the recording is started just after said interruption, with the recording power onto the optical disk just before it is interrupted. Further, by detecting the recording power, again, by reproducing an end portion just before the interruption, or by reducing the recording power determined, the recording is started just after that interruption thereof, with the said reduced recording power.
摘要翻译：在用于补偿记录功率的方法中，适用于光盘装置，在其中施加WOPC作为用于在记录操作期间补偿记录功率的装置，以及其中应用该WOPC的光盘装置，其中记录操作被中断，当连续记录预定数量的数据时，为了确定下一次重新编码时的记录功率，从刚刚在其中断之前的重新编码状态到光盘上，从而开始记录，其中记录功率是从刚才在所述中断之后确定的其中当在中断记录操作时确定的记录功率超过预定阈值时，对光学拾取器的倾斜角进行调整，并且在所述中断之后立即开始记录，其中记录功率被在它被中断之前的光盘。此外，通过再次检测记录功率，通过再现刚好在中断之前的端部，或者通过降低确定的记录功率，在所述中断之后，以所述降低的记录功率开始记录。

25. 发明申请

US20070121443A1 Optical disc recording/reproducing apparatus and a focus-servo method thereof 有权
标题翻译：光盘记录/再现装置及其聚焦伺服方法
公开(公告)号：US20070121443A1
公开(公告)日：2007-05-31
申请号：US11474506
申请日：2006-06-26
申请人： Toru Kawashima , Hiroharu Sakai , Takeyoshi Kataoka , Motoyuki Suzuki
发明人： Toru Kawashima , Hiroharu Sakai , Takeyoshi Kataoka , Motoyuki Suzuki
IPC分类号： G11B7/00
CPC分类号： G11B7/0908 , G11B7/00718
摘要： In a focus-servo control method within an optical disc recording/reproducing apparatus, for recording or reproducing information onto/from an optical information recording medium having a track with a land and a groove, which are formed in a spiral manner on an information recording surface thereof, with moving an optical spot from the land to the groove, or from the groove to the land via an exchange portion therebetween, a focus offset value is exchanged from an offset value for the land or the groove to the offset value for the groove or the land, gradually. within a region starting from a position advancing by a predetermined time period from appearance of the exchange portion exchanging from the land to the groove or from the groove to the land, thereby providing a technology for dissolving fall down of recording/reproducing quality, due to the L/G exchange portion when recording/reproducing the information onto/from the optical disc having the land and the groove on the recording surface thereof.
摘要翻译：在光盘记录/再现装置中的聚焦伺服控制方法中，用于在信息记录上以螺旋方式形成有具有纹间和凹槽的轨道的光信息记录介质上的信息记录或再现信息其中，通过使光斑从脊部移动到凹槽，或者通过它们之间的交换部分从凹槽移动到脊部，将聚焦偏移值从岸台或凹槽的偏移值交换到沟或土地，逐渐。在从一个预定时间段开始的位置开始的区域中，从交换部分从陆地交换到凹槽或从槽到陆地的出现，从而提供了一种解决记录/再现质量下降的技术，由于 L / G交换部分，当记录/再现记录表面上具有纹间和凹槽的光盘的信息时。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式