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1. 发明专利

JP2005228384A Information recording/reproducing device 有权
标题翻译：信息记录/再现设备
公开(公告)号：JP2005228384A
公开(公告)日：2005-08-25
申请号：JP2004034396
申请日：2004-02-12
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： SUZUKI YOSHIHISA , WASHIMI SATOSHI , HAMAGUCHI SHUNEI , NAKAO KENJI , MAMIYA NOBORU , TODA HIDEJI , GOTO TOSHIHIRO
IPC分类号： G11B7/085 , G11B7/00 , G11B7/08 , G11B7/09 , G11B7/095
CPC分类号： G11B7/0956 , G11B7/082 , G11B7/0933 , G11B7/0935
摘要： PROBLEM TO BE SOLVED: To provide an information recording/reproducing device capable of further speeding up a tilt control while suppressing a futile tilt control operation.
SOLUTION: When an optical disk drive is assemble, focus bias voltage values (reference bias values V1-V6) at radial positions P1-P6 are kept to be acquired/stored by using a standard disk having the high flatness accuracy. When a disk objective for recording/reproducing operation is loaded, focus bias voltage values (Fo bias values vs1-vs6) at the radial positions P1-P6 are acquired prior to the recording/reproducing operation, and tilted values T1-T6 at each radial position are acquired from difference values between the reference bias values and the Fo bias values at each radial position. At the recording/reproducing time with respect to the disk, the radial position Pn existing at the position just in front of the recording/reproducing position is detected at first. Then, the tilt control is executed by making the tilted amount Tn at the radial position Pn to the tilt amount at the recording/reproducing position.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够进一步加速倾斜控制同时抑制无效倾斜控制操作的信息记录/再现装置。解决方案：当组装光盘驱动器时，通过使用具有高平坦度精度的标准盘来保持在径向位置P1-P6处的聚焦偏置电压值（参考偏置值V1-V6）被获取/存储。当加载用于记录/再现操作的盘物镜时，在记录/再现操作之前获取在径向位置P1-P6处的聚焦偏置电压值（Fo偏置值vs1-vs6），并且在每个径向处获得倾斜值T1-T6 从每个径向位置处的参考偏置值和Fo偏置值之间的差值获取位置。在相对于盘的记录/再现时间，首先检测存在于刚好在记录/再现位置前面的位置处的径向位置Pn。然后，通过将径向位置Pn处的倾斜量Tn设定为记录/再现位置处的倾斜量来执行倾斜控制。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2007042233A Disk recording and reproducing apparatus 审中-公开
标题翻译：磁盘记录和再现设备
公开(公告)号：JP2007042233A
公开(公告)日：2007-02-15
申请号：JP2005226664
申请日：2005-08-04
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： TODA HIDEJI
IPC分类号： G11B7/09 , G11B7/005 , G11B7/085
摘要： PROBLEM TO BE SOLVED: To provide a disk recording and reproducing apparatus in which switching to signal reproduction or signal recording can be performed in a short time.
SOLUTION: The disk recording and reproducing apparatus is provided with a microcomputer 6 performing a series of signal adjustment processing. The computer 6 performs offset adjustment processing in which an irradiation position of a laser beam is varied in the radial direction of a disk 1 to obtain an offset adjustment value used for generating a tracking error signal, and obtain a signal depending on a reproduced signal from the disk 1 in processing, and after finish of processing, determines whether a series of signal adjustment processing is performed over a signal recording region and an unrecorded region or not based on the obtained signal. And when it is determined that the series of signal adjustment processing is performed over a signal recording area and an unrecorded area, after an optical pickup 2 is moved to an inner periphery direction of the disk 1 or an outer periphery direction, the series of signal adjustment processing is performed from processing before offset adjustment processing again again.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以在短时间内进行切换到信号再现或信号记录的盘记录和再现装置。解决方案：盘记录和再现装置设有执行一系列信号调整处理的微型计算机6。计算机6执行偏移调整处理，其中激光束的照射位置在盘1的径向方向上变化，以获得用于产生跟踪误差信号的偏移调整值，并且根据来自盘1在处理中，并且在处理完成之后，基于获得的信号确定是否在信号记录区域和未记录区域上执行一系列信号调整处理。并且当确定在信号记录区域和未记录区域上执行一系列信号调整处理时，在光学拾取器2移动到盘1的内周方向或外周方向之后，一系列信号再次进行偏移调整处理之前的调整处理。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2005078781A Disk recording/reproducing device and method 审中-公开
标题翻译：磁盘记录/再现设备和方法
公开(公告)号：JP2005078781A
公开(公告)日：2005-03-24
申请号：JP2003312043
申请日：2003-09-03
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： MAMIYA NOBORU , NAKAO KENJI , TODA HIDEJI , SANO AKIO , GOTO TOSHIHIRO
IPC分类号： G11B21/08 , G11B7/004 , G11B7/007 , G11B7/085 , G11B7/30
摘要： PROBLEM TO BE SOLVED: To smoothly perform reproducing in a burst area by dynamically positioning a recording/reproducing head almost on the center of the burst area even by an inexpensive driving means such as a DC motor.
SOLUTION: An optical head accesses a groove 101 just near a burst area, and then a tracking servo is turned off. At this time, a waveform appears on a push-pull signal. Based on this waveform, an eccentricity determination signal is generated, and a count pulse signal is generated. Then, a pulse number ka in the rising period of the eccentricity determination signal is compared with a pulse number Kb in the falling period thereof, a beam spot is moved to an inner peripheral side in the case of Ka>Kb, and to an outer peripheral side in the case of Ka
摘要翻译：要解决的问题：即使通过诸如DC电动机的廉价的驱动装置，也可以通过动态地将记录/再现头几乎位于突发区域的中心位置来在脉冲区域中平滑地执行再现。解决方案：光头访问刚好靠近突发区域的凹槽101，然后关闭跟踪伺服。此时，推挽信号出现波形。基于该波形，产生偏心确定信号，并产生计数脉冲信号。然后，将偏心确定信号的上升期间的脉冲数ka与其下降期间的脉冲数Kb进行比较，在Ka> Kb的情况下，将光束点移动到内周侧，并且向外侧在Ka

4. 发明专利

JP2005085415A Disk recording and reproducing device 审中-公开
标题翻译：磁盘记录和再现设备
公开(公告)号：JP2005085415A
公开(公告)日：2005-03-31
申请号：JP2003319109
申请日：2003-09-10
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： NAKAO KENJI , MAMIYA NOBORU , TODA HIDEJI , GOTO TOSHIHIRO , SANO AKIO
IPC分类号： G11B7/24 , G11B7/085 , G11B20/10 , G11B21/08
摘要： PROBLEM TO BE SOLVED: To dynamically locate a recording and reproducing head almost in the center of a burst area to smoothly reproduce the burst area, even with an inexpensive driving means, such as a DC motor. SOLUTION: After an optical head accesses a groove 101 nearest to the burst area, a thread motor 30 is driven to move the optical head in the burst area 103 direction and to simultaneously start the clocking of a timer. The duration T until a beam spot escapes from the burst area 103 is measured, the duration T is multiplied by 3/5 to set as seek time T0. After the optical head accesses the groove 101 nearest to the burst area when the burst area 103 is reproduced, the thread motor 30 is driven with the same driving force as the above to shift the optical head by the seek time T0 in the burst area 103 direction. This allows the beam spot to be located almost in the center of the burst area 103, and after that, the burst area 103 to be reproduced. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使使用诸如DC电动机的廉价的驱动装置，也可以将突发区域的中心附近的记录和再现磁头动态地定位以平滑地再现突发区域。解决方案：在光学头访问最接近突发区域的凹槽101之后，驱动螺纹马达30以在突发区域103方向上移动光学头并同时开始定时器的计时。测量直到波束点从脉冲串区域103逸出的持续时间T，将持续时间T乘以3/5以设置为寻道时间T0。在重放突发区域103之后光头访问最接近突发区域的凹槽101之后，以与上述相同的驱动力驱动螺纹马达30，以将光头移动到突发区域103中的寻道时间T0 方向。这允许光束点几乎位于突发区域103的中心，之后是要再现的突发区域103。版权所有（C）2005，JPO＆NCIPI

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