专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06356522B1 Optical disk drive 失效
标题翻译：光盘驱动器
公开(公告)号：US06356522B1
公开(公告)日：2002-03-12
申请号：US09406796
申请日：1999-09-28
申请人： Takeharu Yamamoto , Katsuya Watanabe , Mitsuro Moriya , Hiromichi Ishibashi , Takashi Kishimoto
发明人： Takeharu Yamamoto , Katsuya Watanabe , Mitsuro Moriya , Hiromichi Ishibashi , Takashi Kishimoto
IPC分类号： G11B700
CPC分类号： G11B27/24 , G11B7/0037 , G11B7/08517 , G11B2220/216 , G11B2220/218 , G11B2220/2562 , G11B2220/2575
摘要： In performing CLV readout, a target frequency is corrected based on current and target numbers of revolutions of a disk motor during a seek operation, thereby controlling the frequency of a read clock signal at a value approximately equal to the corrected target frequency. In performing CAV readout on the other hand, the frequency of the read clock signal is approximately equalized with a data read frequency at a seek destination. By performing these frequency control operations, data reading can be started quickly enough after the seek operation is finished. In reading out information from a recordable disk with wobbling tracks on a data portion, frequency control is performed using a wobble signal with respect to an unrecorded data portion, and phase locking control is performed using a data signal with respect to an address portion. In this manner, an address can be read out constantly.
摘要翻译：在执行CLV读出时，基于搜索操作期间的盘式电动机的转数的当前和目标数来校正目标频率，从而将读取时钟信号的频率控制在大致等于校正的目标频率的值。另一方面，在执行CAV读出时，读取时钟信号的频率近似地与搜索目的地的数据读取频率相等。通过执行这些频率控制操作，可以在搜索操作完成之后足够快地开始数据读取。在从数据部分的摆动磁迹的可记录磁盘中读出信息时，使用相对于未记录数据部分的摆动信号进行频率控制，并且使用相对于地址部分的数据信号执行相位锁定控制。以这种方式，可以不断地读出地址。

2. 发明授权

US6028826A Optical disk apparatus performing correction of phase difference tracking error signal, adjustment of focus position and process of gain adjustment 失效
标题翻译：光盘装置执行相位差跟踪误差信号的校正，调整焦点位置和增益调整处理
公开(公告)号：US6028826A
公开(公告)日：2000-02-22
申请号：US932192
申请日：1997-09-17
申请人： Takeharu Yamamoto , Katsuya Watanabe , Mitsuro Moriya , Takashi Kishimoto
发明人： Takeharu Yamamoto , Katsuya Watanabe , Mitsuro Moriya , Takashi Kishimoto
IPC分类号： G11B7/09
CPC分类号： G11B7/0906 , G11B7/094 , G11B7/0941 , G11B7/0946 , G11B7/0948 , G11B7/0901
摘要： An optical disk apparatus includes a rotating device for rotating a recording medium at a prescribed reproduction rate. A converging device converges a light beam on the recording medium. A moving device moves the converging device so as to cause the converged light beam to cross a track of the recording medium. A light detection device has four areas for receiving light reflected by the recording medium and respectively outputting first, second, third and fourth detection signals. A phase correction device outputs first and second correction signals respectively by correcting the phase of the first and second detection signals in accordance with a correction amount. A tracking error detection device detects a positional offset between the converged light beam and the track based on a phase difference between first and second addition signals and outputs a tracking error signal indicating the positional offset. The first addition signal is obtained by adding the first correction signal and the fourth detection signal. The second addition signal is obtained by adding the second correction signal and the third detection signal. A tracking control device performs feedback control of the moving device so that the light beam converged on the recording medium is positioned on the track, based on the tracking error signal. An adjustment device adjusts the correction amount for the phase correction device based on an asymmetry level based on the tracking error signal without causing the tracking control device to perform feedback control.
摘要翻译：光盘装置包括用于以规定的再现速度旋转记录介质的旋转装置。会聚装置将光束会聚在记录介质上。移动装置移动会聚装置，使会聚的光束穿过记录介质的轨迹。光检测装置具有用于接收由记录介质反射的光并分别输出第一，第二，第三和第四检测信号的四个区域。相位校正装置根据校正量分别校正第一和第二检测信号的相位，分别输出第一和第二校正信号。跟踪误差检测装置根据第一和第二相加信号之间的相位差来检测会聚光束与轨道之间的位置偏移，并输出表示位置偏移的跟踪误差信号。通过将第一校正信号和第四检测信号相加来获得第一相加信号。通过将第二校正信号和第三检测信号相加来获得第二加法信号。跟踪控制装置执行移动装置的反馈控制，使得会聚在记录介质上的光束基于跟踪误差信号位于轨道上。调整装置基于跟踪误差信号，基于不对称级别来调整相位校正装置的校正量，而不使跟踪控制装置执行反馈控制。

3. 发明授权

US06925048B2 Optical disc apparatus 有权
标题翻译：光盘装置
公开(公告)号：US06925048B2
公开(公告)日：2005-08-02
申请号：US10046561
申请日：2001-11-09
申请人： Yuichi Kuze , Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Kenji Fujiune
发明人： Yuichi Kuze , Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Kenji Fujiune
IPC分类号： G11B7/007 , G11B7/085 , G11B20/10 , G11B20/12 , G11B27/24 , G11B27/32 , G11B7/24
CPC分类号： G11B20/0026 , G11B7/00736 , G11B7/08505 , G11B20/10009 , G11B27/24 , G11B27/329 , G11B2020/1259 , G11B2220/211 , G11B2220/2562
摘要： An optical disc apparatus according to the present invention is usable for an optical disc including a bar code area and a control data area adjacent to the bar code area in a radial direction of the optical disc. The optical disc apparatus includes an optical head for directing an optical beam toward the optical disc so as to form an optical spot on the optical disc and output a signal in accordance with the optical beam reflected by the optical disc, a bar code area determination section for determining whether or not the optical spot is positioned on the bar code area of the optical disc based on the signal output by the optical head; and a control section for controlling the optical head so that the optical spot moves toward the control data area, when the optical spot is determined to be positioned on the bar code area.
摘要翻译：根据本发明的光盘装置可用于包括条形码区域和与光盘径向方向上的条形码区域相邻的控制数据区域的光盘。光盘装置包括用于将光束引向光盘以在光盘上形成光点并根据由光盘反射的光束输出信号的光学头，条形码区域确定部分用于基于由光学头输出的信号确定光点是否位于光盘的条形码区域上; 以及控制部，用于当确定光点被定位在条形码区域上时，控制光学头，使得光点朝向控制数据区移动。

4. 发明授权

US06317395B1 Optical disc device for varying PLL characteristic and servo characteristic based on actual reproduction speed 失效
标题翻译：用于根据实际再现速度改变PLL特性和伺服特性的光盘装置
公开(公告)号：US06317395B1
公开(公告)日：2001-11-13
申请号：US09217831
申请日：1998-12-22
申请人： Takeharu Yamamoto , Katsuya Watanabe , Mitsurou Moriya , Takashi Kishimoto
发明人： Takeharu Yamamoto , Katsuya Watanabe , Mitsurou Moriya , Takashi Kishimoto
IPC分类号： G11B700
CPC分类号： G11B7/0908 , G11B7/0941
摘要： The object of the present invention is to realize a stable control and a stable signal reproduction in an optical disc device. When a head unit (110) is shifted in a radial direction or a reproduction speed is varied, a reproduction speed is detected based on a radial position at which the head unit is located and the number of rotaions of a motor (111), and settings of a focusing gain, a tracking gain, an amplification factor of an equalizer circuit (130), a band-limited frequency, a loop gain of a PLL circuit (131) and a divide ratio are varied based on said reproduction speed. Further, an accurate detection of an out of focus operation can be executed by using either one signal of a reflected-light quantity, an RF signal amplitude and a drive of a focusing actuator, or combined signals thereof. Thereby, a stable control and signal reproduction can be provided.
摘要翻译：本发明的目的是在光盘装置中实现稳定的控制和稳定的信号再现。当头单元（110）沿径向移动或再现速度变化时，基于头单元所在的径向位置和马达（111）的旋转数目来检测再现速度，并且基于所述再现速度，改变聚焦增益，跟踪增益，均衡器电路（130）的放大系数，带限频率，PLL电路（131）的环路增益和分频比的设置。此外，可以通过使用反射光量的一个信号，RF信号幅度和聚焦致动器的驱动器或其组合信号来执行对焦操作的精确检测。从而可以提供稳定的控制和信号再现。

5. 发明授权

US06567357B2 Optical disk apparatus 有权
标题翻译：光盘装置
公开(公告)号：US06567357B2
公开(公告)日：2003-05-20
申请号：US09839522
申请日：2001-04-20
申请人： Takashi Kishimoto , Yuuichi Kuze , Kenji Fujiune , Takeharu Yamamoto , Katsuya Watanabe
发明人： Takashi Kishimoto , Yuuichi Kuze , Kenji Fujiune , Takeharu Yamamoto , Katsuya Watanabe
IPC分类号： G11B700
CPC分类号： G11B7/08511 , G11B2007/0013
摘要： An optical disk apparatus of the present invention measures a surface deflection component (shape of surface deflection) from a low-pass component of a compensating filter in a surface deflection measuring part provided in a DSP. Furthermore, the optical disk apparatus calculates timing at which a positional change in a surface deflection component in time required for focus jumping is a predetermined value or less in a timing calculating part, and starts focus jumping at the timing. Because of this, stable focus jumping is made possible.
摘要翻译：本发明的光盘装置从设置在DSP中的表面偏转测量部中的补偿滤波器的低通分量测量表面偏转分量（表面偏转的形状）。此外，光盘装置计算定时计算部分中聚焦跳跃所需时间中的表面偏转分量的位置变化为预定值或更小的定时，并且在定时开始聚焦跳跃。因此，可以实现稳定的重点跳跃。

6. 发明授权

US06493304B2 Optical disk apparatus 有权
标题翻译：光盘装置
公开(公告)号：US06493304B2
公开(公告)日：2002-12-10
申请号：US09929225
申请日：2001-08-13
申请人： Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Mitsurou Moriya
发明人： Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Mitsurou Moriya
IPC分类号： G11B700
CPC分类号： G11B19/12 , G11B7/08523
摘要： An optical disk apparatus for reproducing, or recording, information from plural types of information carriers, including: two or more light sources with different wavelengths; converging parts for converging light beams emitted from the light sources on the information carrier; movement parts for moving the converged light beam in a direction substantially perpendicular to the surface of the information carrier; convergence condition detection parts for outputting a signal corresponding to the convergence condition of the light beam on the information carrier; amplitude detection parts for measuring the amplitude of the convergence condition signal; and focus control parts for driving the movement parts in accordance with the convergence condition signal and performing control so that the convergence condition of the light beam on the information carrier becomes substantially constant. Upon start, or restart, the apparatus determines the type of loaded information carrier based on a signal from the amplitude detection parts.
摘要翻译：一种用于再现或记录来自多种信息载体的信息的光盘装置，包括：两个或更多个具有不同波长的光源; 用于将从光源发射的光束会聚在信息载体上的会聚部分; 用于沿着基本上垂直于信息载体表面的方向移动会聚光束的运动部件; 会聚条件检测部分，用于输出与信息载体上的光束的会聚条件对应的信号; 用于测量收敛条件信号的振幅的振幅检测部分; 以及用于根据会聚条件信号驱动运动部分的聚焦控制部分，并进行控制，使得光束在信息载体上的会聚状态变得基本恒定。在开始或重新启动时，装置基于来自幅度检测部分的信号来确定加载的信息载体的类型。

7. 发明授权

US06339566B1 Optical recording/reproduction device 失效
标题翻译：光记录/再现设备
公开(公告)号：US06339566B1
公开(公告)日：2002-01-15
申请号：US09713223
申请日：2000-11-16
申请人： Takashi Kishimoto , Katsuya Watanabe , Mitsurou Moriya , Takeharu Yamamoto , Kouichi Ikeuchi , Kazushi Andoh
发明人： Takashi Kishimoto , Katsuya Watanabe , Mitsurou Moriya , Takeharu Yamamoto , Kouichi Ikeuchi , Kazushi Andoh
IPC分类号： G11B709
CPC分类号： G11B7/08541 , G11B7/08517 , G11B7/08529
摘要： A speed profile constituting the target speed for the next drive process during searching is generated by target speed generating section 140 and tracking actuator 132 is driven using the error signal in regard to the speed of movement of the light beam calculated by movement speed detection section 141 from a pulse signal obtained by converting the TE signal to binary form. Also linear motor 139 is driven using the difference signal obtained from the target speed and the speed of movement. Tracking actuator 132 is controlled so as to suppress swinging of focusing lens 107 during searching and linear motor 139 moves, during searching, under tracking control to a target speed.
摘要翻译：由目标速度生成部140生成构成搜索期间的下一个驱动处理的目标速度的速度曲线，并且使用关于由移动速度检测部141计算的光束的移动速度的误差信号来驱动跟踪致动器132 从通过将TE信号转换为二进制形式获得的脉冲信号。还使用从目标速度和移动速度获得的差分信号来驱动线性电动机139。控制跟踪致动器132，以便在搜索期间抑制聚焦透镜107在搜索期间的移动，并且在跟踪控制期间移动到目标速度。

8. 发明申请

US20050237867A1 Optical disc apparatus 有权
标题翻译：光盘装置
公开(公告)号：US20050237867A1
公开(公告)日：2005-10-27
申请号：US11159801
申请日：2005-06-23
申请人： Yuichi Kuze , Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Kenji Fujiune
发明人： Yuichi Kuze , Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Kenji Fujiune
IPC分类号： G11B7/007 , G11B7/085 , G11B20/10 , G11B20/12 , G11B27/24 , G11B27/32 , G11B7/09 , G11B7/125
CPC分类号： G11B20/0026 , G11B7/00736 , G11B7/08505 , G11B20/10009 , G11B27/24 , G11B27/329 , G11B2020/1259 , G11B2220/211 , G11B2220/2562
摘要： An optical disc apparatus according to the present invention is usable for an optical disc including a bar code area and a control data area adjacent to the bar code area in a radial direction of the optical disc. The optical disc apparatus includes an optical head for directing an optical beam toward the optical disc so as to form an optical spot on the optical disc and output a signal in accordance with the optical beam reflected by the optical disc; a bar code area determination section for determining whether or not the optical spot is positioned on the bar code area of the optical disc based on the signal output by the optical head; and a control section for controlling the optical head so that the optical spot moves toward the control data area, when the optical spot is determined to be positioned on the bar code area.
摘要翻译：根据本发明的光盘装置可用于包括条形码区域和与光盘径向方向上的条形码区域相邻的控制数据区域的光盘。光盘装置包括用于将光束引向光盘以在光盘上形成光点并根据由光盘反射的光束输出信号的光学头; 条形码区域确定部分，用于基于由光头输出的信号确定光点是否位于光盘的条形码区域上; 以及控制部，用于当确定光点被定位在条形码区域上时，控制光学头，使得光点朝向控制数据区移动。

9. 发明授权

US06628580B1 Optical recording and reproducing apparatus 有权
标题翻译：光学记录和再现设备
公开(公告)号：US06628580B1
公开(公告)日：2003-09-30
申请号：US09545877
申请日：2000-04-07
申请人： Takashi Kishimoto , Takeharu Yamamoto , Katsuya Watanabe , Tatsuya Takeuchi
发明人： Takashi Kishimoto , Takeharu Yamamoto , Katsuya Watanabe , Tatsuya Takeuchi
IPC分类号： G11B700
CPC分类号： G11B7/08529 , G11B7/08517 , G11B7/0906 , G11B7/0917 , G11B7/0953 , G11B2007/0013
摘要： In track jumping or focus jumping in an optical recording and reproducing apparatus for an optical disk, a light beam is accelerated and decelerated from a track to an adjacent one or from an information plane to an adjacent one in the optical disk. A moving time of light beam under acceleration to an adjacent track or information plane for jumping is measured from the start of acceleration to a predetermined point according to tracking o focus error signal. Then, the deceleration signal for tracking or focus actuator is changed on amplitude or period according to the measured period. Thus, track or focus jumping can be performed stably against external disturbances. Alternatively, the light beam is forced to be driven until the level of the tracking or focus error signal is decreased below a predetermined value after the output of the deceleration signal is completed.
摘要翻译：在用于光盘的光学记录和再现装置中的轨道跳跃或聚焦跳跃中，光束从光盘到光盘加速和减速到相邻的一个或从信息平面到相邻的一个。根据跟踪o聚焦误差信号，从加速开始到预定点测量加速下的光束到相邻轨迹或信息平面的移动时间。然后，跟踪或聚焦致动器的减速信号根据测量周期在幅度或周期上改变。因此，可以针对外部干扰稳定地执行跟踪或聚焦跳跃。或者，在完成减速信号的输出之后，迫使光束被驱动直到跟踪或聚焦误差信号的电平降低到预定值以下。

10. 发明授权

US06285635B1 Optical disk apparatus 失效
标题翻译：光盘装置
公开(公告)号：US06285635B1
公开(公告)日：2001-09-04
申请号：US09087545
申请日：1998-05-29
申请人： Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Mitsurou Moriya
发明人： Katsuya Watanabe , Takeharu Yamamoto , Takashi Kishimoto , Mitsurou Moriya
IPC分类号： G11B700
CPC分类号： G11B19/12 , G11B7/08523
摘要： An optical disk apparatus for reproducing information from plural types of information carriers or for recording information to plural types of information carriers, has two or more light sources with different wavelengths, a converging part for converging a light beam emitted from each of the light sources on said information carrier, a movement part for moving the converged spot of the light beam converged by the converging part in a direction substantially perpendicular to the surface of the information carrier, a convergence condition detection part for outputting a signal corresponding to the convergence condition of the light beam on the information carrier, an amplitude detection part for measuring the amplitude of the signal of the convergence condition detection part, and a focus control part for driving the movement part in accordance with the output signal of the convergence condition detection part and for performing control so that the convergence condition of the light beam on the information carrier becomes substantially constant, wherein at the start or restart of the apparatus, before the focus control part is driven, when one of the //
摘要翻译：用于从多种类型的信息载体再现信息或用于将信息记录到多种类型的信息载体的光盘装置具有两个或更多个具有不同波长的光源，用于将从每个光源发射的光束会聚的会聚部分所述信息载体，用于使由所述会聚部分收敛的所述光束的会聚点沿基本上垂直于所述信息载体的表面的方向移动的移动部分，用于输出与所述信息载体的所述收敛条件相对应的信号的会聚条件检测部分，在信息载体上的光束，用于测量会聚条件检测部分的信号的幅度的振幅检测部分，以及用于根据会聚条件检测部分的输出信号驱动运动部分的聚焦控制部分，控制使得光的收敛条件成为信息载体上的信号变得基本恒定，其中在设备的开始或重新启动时，在聚焦控制部分被驱动之前，当其中一个//

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