公开(公告)号：US06680886B1

公开(公告)日：2004-01-20

申请号：US09548264

申请日：2000-04-12

申请人： Shinichi Naohara ,  Takeshi Sato ,  Hitoshi Yamazaki ,  Norio Matsuda ,  Morio Nozaki

发明人： Shinichi Naohara ,  Takeshi Sato ,  Hitoshi Yamazaki ,  Norio Matsuda ,  Morio Nozaki

IPC分类号： G11B700

CPC分类号： G11B7/13927 ,  G11B7/0956

摘要： A tilt servo apparatus of an optical disc recording/reproducing apparatus, which includes sampling portion for sampling an RF envelope signal at every predetermined rotational angle on the basis of a rotation signal being synchronous with a rotation of the optical recording medium, calculating portion for calculating an average value of the sampled envelope intensities, and control portion for controlling a tilt error correction. The control portion determines the amount of the tilt error correction on the basis of the average value.

摘要翻译： 一种光盘记录/再现装置的倾斜伺服装置，包括：采样部分，用于根据与光学记录介质的旋转同步的旋转信号以每个预定的旋转角度对RF包络信号进行采样;计算部分，用于计算 采样包络强度的平均值，以及用于控制倾斜误差校正的控制部分。 控制部根据平均值来决定倾斜误差校正量。

公开(公告)号：US06256273B1

公开(公告)日：2001-07-03

申请号：US09111435

申请日：1998-07-07

申请人： Norio Matsuda ,  Hiroyuki Abe ,  Shinichi Naohara ,  Hitoshi Yamazaki ,  Takashi Suzuki ,  Yuichi Kimikawa ,  Kenichi Takahashi

发明人： Norio Matsuda ,  Hiroyuki Abe ,  Shinichi Naohara ,  Hitoshi Yamazaki ,  Takashi Suzuki ,  Yuichi Kimikawa ,  Kenichi Takahashi

IPC分类号： G11B700

CPC分类号： G11B7/0946 ,  G11B7/08511 ,  G11B7/0908 ,  G11B7/0948 ,  G11B2007/0013

摘要： A focusing control apparatus is designed to perform a focus jumping operation successfully. The apparatus has reading device which irradiates read light to a recording medium 1 having information recording surfaces formed on at least two layers, respectively, receiving return light of the read light from the recording medium, and generating a read signal; and control device which executes a focus jumping process to generate a drive signal of a focusing actuator to move an optimum light converging position of the read light from one of the recording surfaces to the other based on a focusing error signal that is generated based on the return light. The apparatus further has drop-out detecting device which detects a drop-out of the read signal and vibration detecting device which detects a vibration of the recording medium or reading device. The control device executes the focus jumping process only when the drop-out is not detected and a vibration detection level of the vibration detecting means is lower than a predetermined value.

摘要翻译： 聚焦控制装置被设计成成功地执行聚焦跳跃操作。 该装置具有将读取光照射到具有形成在至少两层上的信息记录面的记录介质1的读取装置，分别从记录介质接收读取光的返回光，并产生读取信号; 以及控制装置，其执行聚焦跳跃处理，以产生聚焦致动器的驱动信号，以基于基于所述的聚焦误差信号将所述读取光的最佳聚光位置从所述记录表面之一移动到另一个 回灯 该装置还具有检测读取信号的丢失检测装置和检测记录介质或读取装置的振动的振动检测装置。 只有当没有检测到辍学并且振动检测装置的振动检测水平低于预定值时，控制装置才执行聚焦跳跃处理。

公开(公告)号：US06587409B1

公开(公告)日：2003-07-01

申请号：US09576901

申请日：2000-05-23

申请人： Hitoshi Yamazaki ,  Norio Matsuda ,  Alex Bradshaw ,  Shinichi Naohara

发明人： Hitoshi Yamazaki ,  Norio Matsuda ,  Alex Bradshaw ,  Shinichi Naohara

IPC分类号： G11B700

CPC分类号： G11B7/0956 ,  G11B7/08505 ,  G11B7/08511 ,  G11B7/0945 ,  G11B7/1369 ,  G11B7/13927 ,  G11B2007/0013

摘要： A tilt servo control apparatus has a tilt error correcting device for correcting a tilt error caused by a tilt angle defined between a normal at an irradiating position of a laser beam irradiated onto a recording surface of an optical recording medium and an optical axis of the laser beam. The tilt error correcting device is driven based on an intensity of the reflected light of the laser beam irradiated onto the recording surface. The apparatus provides a control to hold a drive value of the tilt error correcting device to a predetermined value in response to a track jump command for changing the irradiating position of the laser beam from the first irradiating position to the second irradiating position that is away therefrom by a distance corresponding to a predetermined number of tracks.

摘要翻译： 倾斜伺服控制装置具有倾斜误差校正装置，用于校正由照射到光记录介质的记录表面上的激光束的照射位置处的法线和激光光轴之间的倾角确定的倾斜误差 光束。 基于照射到记录表面上的激光束的反射光的强度来驱动倾斜误差校正装置。 响应于用于将激光束从第一照射位置的照射位置改变到远离其的第二照射位置的轨道跳转命令，该装置提供控制以将倾斜误差校正装置的驱动值保持在预定值 相对于预定数量的轨道的距离。

公开(公告)号：US06552984B1

公开(公告)日：2003-04-22

申请号：US09546282

申请日：2000-04-10

申请人： Hitoshi Yamazaki ,  Morio Nozaki ,  Takeshi Sato ,  Yuichi Kimikawa ,  Motoi Kimura

发明人： Hitoshi Yamazaki ,  Morio Nozaki ,  Takeshi Sato ,  Yuichi Kimikawa ,  Motoi Kimura

IPC分类号： G11B700

CPC分类号： G11B7/13927 ,  G11B7/0956 ,  G11B7/1369

摘要： A liquid-crystal tilt servo apparatus in which a reference voltage generating circuit is unnecessary for a liquid-crystal driving circuit and which has a simple circuit configuration and high reliability is realized. The liquid-crystal driving circuit has a DC removing circuit for removing a DC component of a driving signal generated on the basis of a tilt error correction control signal from a control unit and supplying a resultant signal to a liquid crystal device.

摘要翻译： 实现了液晶驱动电路不需要基准电压产生电路并且具有简单的电路结构和高可靠性的液晶倾斜伺服装置。 液晶驱动电路具有DC去除电路，用于去除基于来自控制单元的倾斜误差校正控制信号产生的驱动信号的DC分量，并将得到的信号提供给液晶装置。

公开(公告)号：US06777657B2

公开(公告)日：2004-08-17

申请号：US10114027

申请日：2002-04-03

申请人： Yoshimichi Nishio ,  Yoshihiro Hashizuka ,  Kazunori Matsuo ,  Takeshi Sato ,  Morio Nozaki ,  Hitoshi Yamazaki ,  Kazuhiko Oogami ,  Yoshitaka Makino ,  Hideaki Yoshimura

发明人： Yoshimichi Nishio ,  Yoshihiro Hashizuka ,  Kazunori Matsuo ,  Takeshi Sato ,  Morio Nozaki ,  Hitoshi Yamazaki ,  Kazuhiko Oogami ,  Yoshitaka Makino ,  Hideaki Yoshimura

IPC分类号： G11B709

CPC分类号： G11B7/08511 ,  G11B7/08529 ,  G11B2007/0013

摘要： A focusing controller executes an appropriate focus jump even in a multilayer disk having layers of characteristics greatly different from each other. The focusing controller has an optical pickup including an objective lens for converging the light beam and a detector for receiving reflected light from the multilayer recording medium; an error signal generator for generating a focus error signal of the irradiated light beam from a detecting signal of the detector; an actuator for operating the objective lens; and a controller for controlling a focusing position of the light beam by operating the actuator based on the focus error signal. The controller calculates intensities of the reflected lights of two layers based on the detecting signal of the detector, and thus controls the timings of acceleration and deceleration signals of a focus jump between these two layers.

摘要翻译： 即使在具有彼此极大不同的特征层的多层盘中，聚焦控制器执行适当的聚焦跳跃。 聚焦控制器具有包括用于会聚光束的物镜的光学拾取器和用于接收来自多层记录介质的反射光的检测器; 误差信号发生器，用于根据检测器的检测信号产生照射光束的聚焦误差信号; 用于操作物镜的致动器; 以及控制器，用于通过基于聚焦误差信号操作致动器来控制光束的聚焦位置。 控制器基于检测器的检测信号计算两层反射光的强度，从而控制这两层之间的聚焦跳跃的加速和减速信号的定时。

公开(公告)号：US06295256B1

公开(公告)日：2001-09-25

申请号：US09577626

申请日：2000-05-25

申请人： Yuichi Kimikawa ,  Motoi Kimura ,  Hitoshi Yamazaki ,  Alex Bradshaw ,  Morio Nozaki

发明人： Yuichi Kimikawa ,  Motoi Kimura ,  Hitoshi Yamazaki ,  Alex Bradshaw ,  Morio Nozaki

IPC分类号： G11B700

CPC分类号： G11B7/094 ,  G11B7/0908 ,  G11B7/0956

摘要： A focusing bias adjusting apparatus in an optical recording medium playing apparatus, in which a focusing bias adjustment is executed to remove an offset component in a focusing error signal based on each output signal of a split type photodetector in an optical pickup and, thereafter, a tilt adjustment is executed to an optical system so as to maximize a read signal serving as a sum signal of the output signals of the photodetector in order to compensate a tilt angle which is defined by a normal at the irradiating position of a laser beam from the optical pickup on the recording surface of an optical recording medium and the optical axial direction of the laser beam. When the tilt adjusting operation of the optical system of the optical pickup is performed after completion of the focusing bias adjustment, the focusing bias adjustment is executed again.

摘要翻译： 一种光记录介质播放装置中的聚焦偏移调节装置，其中执行聚焦偏置调整以基于光学拾取器中的分离型光电检测器的每个输出信号去除聚焦误差信号中的偏移分量，之后， 对光学系统执行倾斜调整，以使作为光电检测器的输出信号的和信号的读取信号最大化，以补偿由来自该光电检测器的激光束的照射位置处的法线限定的倾斜角 光学记录介质的记录表面上的光学拾取器和激光束的光轴方向。 当在聚焦偏差调整完成之后执行光学拾取器的光学系统的倾斜调节操作时，再次执行聚焦偏置调整。

公开(公告)号：US20070199007A1

公开(公告)日：2007-08-23

申请号：US10593559

申请日：2005-03-29

申请人： Akira Yasaki ,  Shigeru Kojima ,  Norio Matsuda ,  Hideki Kinoshita ,  Hitoshi Yamazaki ,  Jun Togashi ,  Yasuhiro Shinkai

发明人： Akira Yasaki ,  Shigeru Kojima ,  Norio Matsuda ,  Hideki Kinoshita ,  Hitoshi Yamazaki ,  Jun Togashi ,  Yasuhiro Shinkai

IPC分类号： G11B17/04

CPC分类号： G11B17/05

摘要： Provided is a disk carrying mechanism, in which a guide member (32) is installed on a disk guide block (41) and the disk guide block (41) with the guide member (32) being disposed on an opposite side of a roller (31) with a carrying route therebetween. The guide member (32) is formed as a ridge extending in a direction orthogonal to a direction of a carrying route and inclined from a center part to a peripheral edge part of a disk so that its height can be increased.

摘要翻译： 提供一种盘片承载机构，其中导向件（32）安装在盘导向块（41）上，盘导向块（41）具有导向件（32），该导向件设置在辊的相对侧 31）。 引导构件（32）形成为在与运送路线的方向正交的方向上延伸的脊，并且从盘的中心部分到周缘部分倾斜，从而可以增加其高度。

公开(公告)号：US20050219965A1

公开(公告)日：2005-10-06

申请号：US11094588

申请日：2005-03-31

申请人： Hideki Kinoshita ,  Jun Togashi ,  Akira Yasaki ,  Shigeru Kojima ,  Norio Matsuda ,  Hitoshi Yamazaki

发明人： Hideki Kinoshita ,  Jun Togashi ,  Akira Yasaki ,  Shigeru Kojima ,  Norio Matsuda ,  Hitoshi Yamazaki

IPC分类号： G11B17/051 ,  G11B7/00 ,  G11B7/085 ,  G11B17/04 ,  G11B19/12

CPC分类号： G11B19/124 ,  G11B17/0404 ,  G11B17/0515 ,  G11B2007/0006

摘要： A record medium reproduction unit has a main casing, a transfer device, a pair of sensing pins, a sensing device, and a decision device. The transfer device transfers a larger disk record medium and a smaller disk record medium into and out of the main casing. The sensing pins are movable toward and away from each other and each contact an outer edge of the larger disk record medium when the larger disk record medium enters the main casing. The decision device determines which is inserted into the main casing, the larger disk record medium, the smaller disk record medium, or a special form record medium such as a card-shaped CD based on information supplied from the pair of sensing pins.

摘要翻译： 记录介质再现单元具有主壳体，传送装置，一对感测针，感测装置和判定装置。 传送装置将更大的盘记录介质和较小的盘记录介质传送到主壳体中。 传感销可以朝着彼此和远离的方向移动，并且当更大的盘记录介质进入主壳体时，每个接触大型盘记录介质的外边缘。 决定装置基于从该对感测针提供的信息，确定哪个插入主壳体，较大的盘记录介质，较小的盘记录介质或特殊形式的记录介质，例如卡形CD。

公开(公告)号：US07454768B2

公开(公告)日：2008-11-18

申请号：US10593559

申请日：2005-03-29

申请人： Akira Yasaki ,  Shigeru Kojima ,  Norio Matsuda ,  Hideki Kinoshita ,  Hitoshi Yamazaki ,  Jun Togashi ,  Yasuhiro Shinkai

发明人： Akira Yasaki ,  Shigeru Kojima ,  Norio Matsuda ,  Hideki Kinoshita ,  Hitoshi Yamazaki ,  Jun Togashi ,  Yasuhiro Shinkai

IPC分类号： G11B17/04

CPC分类号： G11B17/05

摘要： Provided is a disk carrying mechanism, in which a guide member (32) is installed on a disk guide block (41) and the disk guide block (41) with the guide member (32) being disposed on an opposite side of a roller (31) with a carrying route therebetween. The guide member (32) is formed as a ridge extending in a direction orthogonal to a direction of a carrying route and inclined from a center part to a peripheral edge part of a disk so that its height can be increased.

摘要翻译： 提供一种盘片承载机构，其中导向件（32）安装在盘导向块（41）上，盘导向块（41）具有导向件（32），该导向件设置在辊的相对侧 31）。 引导构件（32）形成为在与运送路线的方向正交的方向上延伸的脊，并且从盘的中心部分到周缘部分倾斜，从而可以增加其高度。

公开(公告)号：US20060136937A1

公开(公告)日：2006-06-22

申请号：US11094513

申请日：2005-03-31

申请人： Akira Yasaki ,  Shigeru Kojima ,  Norio Matsuda ,  Hideki Kinoshita ,  Hitoshi Yamazaki ,  Jun Togashi

发明人： Akira Yasaki ,  Shigeru Kojima ,  Norio Matsuda ,  Hideki Kinoshita ,  Hitoshi Yamazaki ,  Jun Togashi

IPC分类号： G11B33/02

CPC分类号： G11B17/051

摘要： A disc transfer section for transferring an optical disc by guide members and a transfer roller is disposed adjacent to an opening of a casing 110. A detector 500 for detecting the optical disc is disposed adjacent to the opening. When unloading the optical disc, the peripheral edge of the optical disc contacts with slide members so that the slide members are slid, thereby sensor switches SW1 to SW4 are appropriately switched on and off. Based on a time difference between the timings of the on/off switchings, the relation between a movement trajectory of the center of the optical disc and an axis of symmetry that is a straight line indicating a transfer direction at the center of the opening is judged in order to control the drive of a transfer motor according to the movement trajectory. The amount of advancement when the unloading is completed is kept constant.

摘要翻译： 用于通过引导构件和转印辊传送光盘的盘传送部分设置成与壳体110的开口相邻。 用于检测光盘的检测器500设置成与开口相邻。 当卸载光盘时，光盘的周缘与滑动部件接触，因此滑动部件滑动，从而适当地打开和关闭传感器开关SW 1至SW 4。 基于开/关切换的定时之间的时间差，判断光盘中心的移动轨迹与作为开口中心的传送方向的直线的对称轴之间的关系 以便根据移动轨迹控制转印马达的驱动。 卸货完成后的进度保持不变。