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1. 发明授权

US06256273B1 Focusing control apparatus for optimally directing light onto a recording surface 失效
标题翻译：用于将光线最佳地引导到记录表面上的聚焦控制装置
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。

2. 发明授权

US06091680A Focus control apparatus 失效
标题翻译：对焦控制装置
公开(公告)号：US06091680A
公开(公告)日：2000-07-18
申请号：US102250
申请日：1998-06-22
申请人： Norio Matsuda , Takashi Suzuki , Kazushige Kawana , Hitoshi Yamazaki , Yuichi Kimikawa , Masakazu Takahashi , Kenichi Takahashi
发明人： Norio Matsuda , Takashi Suzuki , Kazushige Kawana , Hitoshi Yamazaki , Yuichi Kimikawa , Masakazu Takahashi , Kenichi Takahashi
IPC分类号： G11B7/00 , G11B7/085 , G11B7/09
CPC分类号： G11B7/08511 , G11B7/0945 , G11B2007/0013 , G11B7/0908
摘要： Disclosed is a focus control apparatus of the present invention capable of successfully performing an accurate focus jump operation without an erroneous operation of a focus actuator. The apparatus irradiates a light beam onto a recording medium, and generates a focus actuator drive signal for moving an optimized light convergence point of the light beam from one recording surface to the other, based on a focus error signal generated based on a returned light from the recording medium. The focus control apparatus comprises a detector for detecting that the focus error signal crosses a predetermined level as a specified level crossing; instruction means for generating a focus jump instruction; a drive signal generating means for generating the drive signal in response to the focus jump instruction and receiving a detection output from the detection circuit to recognize a timing of a specified level crossing of the focus error signal upon receipt of the detection output, thereby extinguishing the drive signal at the timing of the specified level crossing detection timing; and inhibiting means for inhibiting the recognition of the specified level crossing by the drive signal generating section for a predetermined period in response to the focus jump instruction.
摘要翻译：公开了一种本发明的聚焦控制装置，其能够成功地执行精确的聚焦跳跃操作，而不会导致聚焦致动器的错误操作。该装置将光束照射到记录介质上，并且基于基于从来自第一记录表面的返回光产生的聚焦误差信号，生成聚焦致动器驱动信号，用于将光束的优化光会聚点从一个记录表面移动到另一个记录表面记录介质。聚焦控制装置包括检测器，用于检测聚焦误差信号作为指定的电平交叉与预定电平相交; 用于产生聚焦跳转指令的指令装置; 驱动信号发生装置，用于响应于聚焦跳转指令产生驱动信号，并且在接收到检测输出时接收来自检测电路的检测输出，以识别聚焦误差信号的指定电平交叉的定时，由此熄灭在指定的电平交叉检测定时的定时处的驱动信号; 以及禁止装置，用于响应于聚焦跳转指令，禁止由驱动信号产生部分预定时间段的指定电平交叉的识别。

3. 发明授权

US06246646B1 Focus control apparatus for multilayer optical recording medium 失效
标题翻译：用于多层光记录介质的聚焦控制装置
公开(公告)号：US06246646B1
公开(公告)日：2001-06-12
申请号：US09114880
申请日：1998-07-14
申请人： Hiroyuki Abe , Shinichi Naohara , Takeshi Sato , Alex Bradshaw , Kazushige Kawana , Hideaki Watarihana , Norio Matsuda , Kenichi Takahashi
发明人： Hiroyuki Abe , Shinichi Naohara , Takeshi Sato , Alex Bradshaw , Kazushige Kawana , Hideaki Watarihana , Norio Matsuda , Kenichi Takahashi
IPC分类号： G11B709
CPC分类号： G11B7/08511 , G11B7/0948 , G11B2007/0013
摘要： A focus control apparatus for a multilayer optical recording medium performs an adequate focus jump on a multilayer optical recording medium. Threshold values are set according to the amount of a level change in a focus error signal of a loaded multilayer optical recording medium, and focus jump control is conducted based on the result of comparison between the level of the focus error signal and the set threshold values. Positive and negative threshold values to be compared with the level of the focus error signal to detect a zero-crossing point of the focus error signal are set in accordance with the amount of a level change in the focus error signal, after which an acceleration operation of the focus actuator is started in response to a focus jump instruction to shift the focus position of read light for a focus jump, the acceleration operation is stopped in accordance with zero-crossing detection, a deceleration operation of the focus actuator is started thereafter and is stopped in accordance with zero-crossing detection, so that the operation returns to the focus servo operation.
摘要翻译：用于多层光学记录介质的聚焦控制装置在多层光学记录介质上执行适当的聚焦跳跃。根据加载的多层光学记录介质的聚焦误差信号中的电平变化量设定阈值，并且基于聚焦误差信号的电平与设定的阈值之间的比较结果进行聚焦跳跃控制。根据聚焦误差信号的电平变化量，设定要与聚焦误差信号的电平进行比较以检测聚焦误差信号的过零点的正和负阈值，然后加速操作响应于聚焦跳转指令开始移动聚焦跳跃的读取光的焦点位置，根据过零检测停止加速操作，此后开始聚焦致动器的减速操作，并且根据过零检测停止，使得操作返回到聚焦伺服操作。

4. 发明授权

US06151280A Focus jump control apparatus of a player for multilayer recording disc 失效
标题翻译：用于多层记录盘的播放器的焦点跳跃控制装置
公开(公告)号：US06151280A
公开(公告)日：2000-11-21
申请号：US105269
申请日：1998-06-26
申请人： Shinichi Naohara , Takashi Suzuki , Alex Bradshaw , Motoi Kimura , Norio Matsuda , Kazushige Kawana , Kenichi Takahashi
发明人： Shinichi Naohara , Takashi Suzuki , Alex Bradshaw , Motoi Kimura , Norio Matsuda , Kazushige Kawana , Kenichi Takahashi
IPC分类号： G11B7/00 , G11B7/085 , G11B7/09
CPC分类号： G11B7/08511 , G11B2007/0013 , G11B7/0945
摘要： A focus jump control apparatus of a player for playing a multilayer recording disc surely achieves a focus jump. This apparatus includes: a focusing servo loop for allowing a focal point to trace a recording surface in accordance with a focusing error signal by using a focusing actuator to displace the focal point of read light to a disc in the optical axial direction; and a tracking servo loop for allowing the focal point to trace disc tracks. A loop opening/closing control unit opens/closes focusing/tracking servo loops in response to an instruction and closes the focusing servo loop when the movement of the focal point from one of the recording surfaces to the other. During the movement of the read light focal point, the closing state of the tracking servo loop is maintained. Jump driving means generates a drive signal of the actuator to move the focal point from one of the recording surfaces to the other based on the error signal under the opening/closing control of the focusing/tracking servo loops.
摘要翻译：用于播放多层记录盘的播放器的焦点跳跃控制装置确实实现了聚焦跳跃。该装置包括：聚焦伺服环，用于通过使用聚焦致动器将读取光的焦点在光轴方向上移位到光盘，根据聚焦误差信号使焦点跟踪记录表面; 以及用于允许焦点跟踪盘轨迹的跟踪伺服环路。环路打开/关闭控制单元响应于指令打开/关闭聚焦/跟踪伺服环路，并且当焦点从记录表面之一移动到另一个时闭合聚焦伺服环路。在读取光焦点的运动期间，维持跟踪伺服环路的关闭状态。跳转驱动装置根据在聚焦/跟踪伺服环路的打开/关闭控制下的误差信号产生致动器的驱动信号，以将焦点从记录表面之一移动到另一记录表面。

5. 发明授权

US06985412B1 Focus servo controller with collision avoidance and method therefor 失效
标题翻译：具有防碰撞的聚焦伺服控制器及其方法
公开(公告)号：US06985412B1
公开(公告)日：2006-01-10
申请号：US09571536
申请日：2000-05-16
申请人： Alex Bradshaw , Yuichi Kimikawa , Shinichi Naohara , Norio Matsuda
发明人： Alex Bradshaw , Yuichi Kimikawa , Shinichi Naohara , Norio Matsuda
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/0908 , G11B7/094 , G11B7/0941 , G11B7/0946
摘要： Two sum output signals from two sets of the photodetector elements located symmetrically each other with respect to a light-receiving center of the photodetector of the optical pickup are amplified individually by two amplifiers. A focus error signal is generated in accordance with a difference between respective output levels of the two amplified signals. The gains of the two amplifiers are adjusted in accordance with the focus error signal. A predetermined bias voltage is applied to the focus error signal line in the focus servo control means in accordance with the focus error signal.
摘要翻译：由两个放大器单独放大两组相对于光拾取器的光电检测器的光接收中心彼此对称设置的两个光检测元件的和输出信号。根据两个放大信号的各个输出电平之间的差产生聚焦误差信号。根据聚焦误差信号调整两个放大器的增益。根据聚焦误差信号，在聚焦伺服控制装置中对聚焦误差信号线施加预定的偏置电压。

6. 发明授权

US06587409B1 Tilt servo apparatus for optical disc recording/playing apparatus 失效
标题翻译：用于光盘记录/播放装置的倾斜伺服装置
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。

7. 发明授权

US06680886B1 Liquid crystal tilt servo apparatus 失效
标题翻译：液晶倾斜伺服装置
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。

8. 发明授权

US06690632B1 Tilt servo apparatus and control method thereof 失效
标题翻译：倾斜伺服装置及其控制方法
公开(公告)号：US06690632B1
公开(公告)日：2004-02-10
申请号：US09548263
申请日：2000-04-12
申请人： Takeshi Sato , Motoi Kimura , Alex Bradshaw , Norio Matsuda , Shinichi Naohara
发明人： Takeshi Sato , Motoi Kimura , Alex Bradshaw , Norio Matsuda , Shinichi Naohara
IPC分类号： G11B390
CPC分类号： G11B7/1369 , G11B7/0956 , G11B7/13927
摘要： A tilt servo apparatus which can correct a tilt error at a high speed and with high precision irrespective of a magnitude of the tilt error even if a response speed of a liquid crystal device decreases is provided. An amount of change and an increase/decrease of a signal intensity are detected by changing a correction value of a tilt error correcting arrangement by a first correction width, and a correction width of the correction value and a correcting direction are determined on the basis of the detection result. When the amount of change of the signal intensity is smaller than a predetermined amount of change, the correction width is changed to a second correction width which is smaller than a first correction width. When it is larger than the predetermined amount of change, the correction width is changed to a third correction width larger than the first correction width. The correction width is also determined in accordance with a change in environmental temperature.
摘要翻译：提供了即使液晶装置的响应速度降低，也可以与倾斜误差的大小无关地以高精度校正倾斜误差的倾斜伺服装置。通过将倾斜误差校正装置的校正值改变第一校正宽度来检测信号强度的变化量和增加/减小，并且基于校正值和校正方向确定校正值和校正方向的校正宽度检测结果。当信号强度的变化量小于预定量的变化量时，校正宽度变为小于第一校正宽度的第二校正宽度。当其大于预定量的变化量时，校正宽度变为大于第一校正宽度的第三校正宽度。校正宽度也根据环境温度的变化来确定。

9. 发明申请

US20070199007A1 Disk carrying mechanism and disk player 失效
标题翻译：磁盘机架和磁盘播放机
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。

10. 发明申请

US20050219965A1 Record medium reproduction unit and method for recognizing record medium of reproduction unit 审中-公开
标题翻译：用于识别再现单元的记录介质的记录介质再现单元和方法
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。

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