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1. 发明授权

US06147942A 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：US06147942A
公开(公告)日：2000-11-14
申请号：US112004
申请日：1998-07-08
申请人： Hiroyuki Abe , Takeshi Sato , Kazushige Kawana , Hideaki Watarihana , Shinichi Naohara , Motoi Kimura , Yuichi Kimikawa , Masakazu Takahashi
发明人： Hiroyuki Abe , Takeshi Sato , Kazushige Kawana , Hideaki Watarihana , Shinichi Naohara , Motoi Kimura , Yuichi Kimikawa , Masakazu Takahashi
IPC分类号： G11B7/00 , G11B7/085 , G11B7/09
CPC分类号： G11B7/08511 , G11B2007/0013 , G11B7/08529 , G11B7/0945
摘要： A focus control apparatus for a multilayer optical recording medium which performs an appropriate focus jump on a multilayer optical recording medium. This focus control apparatus implements such focus jump control as to temporarily release a focus servo on one layer of a loaded multilayer optical recording medium, shift the focus position of read light on another target layer and then restart the focus servo on the another target layer, detects an ambient temperature, sets a drive signal condition according to the temperature detection output, and moves the focus position of the read light under the set drive signal condition. Specifically, this apparatus generates an acceleration signal to start moving the focus position of read light and a deceleration signal to decelerate movement of the focus position of the read light, as drive signals for a focus actuator in order to execute a focus jump operation, detects an ambient temperature of the focus actuator, and sets signal conditions for the acceleration signal and the deceleration signal according to the detected temperature.
摘要翻译：一种用于在多层光学记录介质上执行适当的聚焦跳跃的多层光学记录介质的聚焦控制装置。该聚焦控制装置实现这样的聚焦跳跃控制，以暂时释放加载的多层光记录介质的一层上的聚焦伺服，将读取光的聚焦位置移动到另一目标层上，然后在另一目标层上重新启动聚焦伺服，检测环境温度，根据温度检测输出设定驱动信号状态，并在设定的驱动信号条件下移动读取光的聚焦位置。具体地，该装置产生加速度信号，开始移动读取光的聚焦位置和减速信号，以减慢读取光的焦点位置的移动，作为聚焦致动器的驱动信号，以执行聚焦跳跃操作，检测聚焦致动器的环境温度，并且根据检测到的温度设置用于加速度信号和减速信号的信号条件。

2. 发明授权

US6101157A Apparatus and method for focus control of read light irradiated on a recording surface 失效
标题翻译：用于对照射在记录表面上的读取光进行聚焦控制的装置和方法
公开(公告)号：US6101157A
公开(公告)日：2000-08-08
申请号：US104930
申请日：1998-06-26
申请人： Alex Bradshaw , Kazushige Kawana , Masakazu Takahashi , Yuichi Kimikawa , Hitoshi Yamazaki , Hideaki Watarihana
发明人： Alex Bradshaw , Kazushige Kawana , Masakazu Takahashi , Yuichi Kimikawa , Hitoshi Yamazaki , Hideaki Watarihana
IPC分类号： G11B7/00 , G11B7/085 , G11B7/09
CPC分类号： G11B7/08511 , G11B7/0945 , G11B2007/0013 , G11B7/094 , G11B7/0941
摘要： Apparatus and method for focus control are devised to cope with a fluctuation of an optimum gain of a focus servo loop due to a difference between light reflectance of recording surfaces or the like and to allow an optimum focal position of read light to preferably trace a target recording surface. The focus control apparatus of the invention includes: reading device for generating a read signal of a recording medium 1; a focus servo loop for allowing an optimum converging position of the read light to trace the target recording surface in accordance with a focus error signal FE by using a focusing actuator to displace the optimum converging position of the read light in the optical axial direction; a level detecting unit of the read signal; a level detecting unit of an error signal FE; amplifiers and of a read signal RF and the error signal FE; and a control unit for driving the actuator so as to allow the optimum converging position of the read light to approach the recording surface in the set-up mode and for controlling gains of the amplifiers so that a detection level by the detecting unit in the set-up mode reaches a predetermined level and a detection level by a detecting unit reaches a predetermined level.
摘要翻译：用于聚焦控制的设备和方法被设计成能够应对由于记录表面等的光反射率之间的差异导致的聚焦伺服环路的最佳增益的波动，并且允许读取光的最佳焦点位置优选地追踪目标记录表面。本发明的聚焦控制装置包括：用于产生记录介质1的读取信号的读取装置; 聚焦伺服环，用于通过使用聚焦致动器来使读取光的最佳会聚位置根据聚焦误差信号FE跟踪目标记录表面，以使读取光在光轴方向上的最佳会聚位置移位; 读取信号的电平检测单元; 误差信号FE的电平检测单元; 放大器和读取信号RF和误差信号FE; 以及控制单元，用于驱动致动器，以便允许读取光的最佳会聚位置在建立模式下接近记录表面，并用于控制放大器的增益，使得检测单元在组中的检测水平 -up模式达到预定水平，并且检测单元的检测水平达到预定水平。

3. 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。

4. 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。

5. 发明授权

US06552984B1 Liquid crystal tilt servo apparatus 失效
标题翻译：液晶倾斜伺服装置
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。

6. 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。

7. 发明授权

US06295256B1 Focusing bias adjusting apparatus and method in optical recording medium playing apparatus 失效
标题翻译：聚焦偏差调节装置和方法在光记录介质播放装置中
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。

8. 发明申请

US20050259964A1 Information reproduction apparatus, information reproduction method, information reproduction program, and information recording medium having the program recorded thereon 审中-公开
标题翻译：信息再现装置，信息再现方法，信息再现程序和其上记录有程序的信息记录介质
公开(公告)号：US20050259964A1
公开(公告)日：2005-11-24
申请号：US11086669
申请日：2005-03-23
申请人： Masashi Takano , Yuichi Kimikawa , Taketo Fushimi , Teruo Takahashi , Kazuo Kita , Yuichi Yoshida
发明人： Masashi Takano , Yuichi Kimikawa , Taketo Fushimi , Teruo Takahashi , Kazuo Kita , Yuichi Yoshida
IPC分类号： G11B20/10 , G11B20/00 , H04N5/76
CPC分类号： G11B20/00086 , H04N21/4542 , H04N21/4627 , H04N21/8113
摘要： There is disclosed an information reproduction apparatus (P) which reproduces music information recorded on a recording medium (DK) wherein the apparatus (P) has a CPU (14) which inhibits reproduction of music information recorded in compressed form based on a preset quality benchmark (e.g., a bit rate) for a sound quality of music information. The information reproduction apparatus (P) may further includes an operation section (15) used to set a quality range indicated by the quality benchmark, on a basis of which music information is inhibited from being reproduced. Using the apparatus, information recorded in a recording medium as a compressed file is reproduced without causing discomfort to a user.
摘要翻译：公开了一种再现记录在记录介质（DK）上的音乐信息的信息再现装置（P），其中装置（P）具有CPU（14），其基于预设的质量基准禁止以压缩形式记录的音乐信息的再现（例如，比特率），用于音乐信息的音质。信息再现装置（P）还可以包括用于设置由质量基准指示的质量范围的操作部分（15），根据该信息禁止音乐信息的再现。使用该装置，记录在记录介质中作为压缩文件的信息被再现，而不会给用户带来不适。

9. 发明授权

US06892385B2 Information recording medium conveyor 失效
标题翻译：信息记录介质输送机
公开(公告)号：US06892385B2
公开(公告)日：2005-05-10
申请号：US10431510
申请日：2003-05-08
申请人： Yuichi Kimikawa , Nobutaka Kawakita , Takeshi Matsumoto , Katsunori Tamamura , Takao Yoshida , Yasuhiro Shinkai
发明人： Yuichi Kimikawa , Nobutaka Kawakita , Takeshi Matsumoto , Katsunori Tamamura , Takao Yoshida , Yasuhiro Shinkai
IPC分类号： G11B17/051 , G11B17/04 , G11B17/26 , G11B33/02
CPC分类号： G11B17/051 , G11B17/0404
摘要： During an ejecting or unloading operation of an information recording medium by a conveying roller, if detection signals are output from detecting sensors indicating that the object being ejected or unloaded has already been discharged from an insertion hole although it has not, then the insertion hole is closed by the door. If, for some reasons, the door fails to close the insertion hole within a predetermined time, the conveying roller performs a forcible ejecting operation, whereby the object left inside is forcibly ejected to the outside. Thus, ejection or unloading of a medium is carried out without failure.
摘要翻译：在通过输送辊进行的信息记录介质的排出或卸载操作期间，如果检测信号从检测传感器输出，表示被排出物体已经从插入孔已经排出了，那么插入孔是被门关上如果由于某些原因，门未能在预定时间内关闭插入孔，则输送辊执行强制弹出操作，从而将被留在里面的物体强制地排出到外部。因此，无故障地执行介质的喷射或卸载。

10. 发明授权

US07173887B2 Carriage servo method and apparatus for determining and setting a drive signal 失效
标题翻译：用于确定和设置驱动信号的支架伺服方法和装置
公开(公告)号：US07173887B2
公开(公告)日：2007-02-06
申请号：US09816234
申请日：2001-03-26
申请人： Yuichi Kimikawa
发明人： Yuichi Kimikawa
IPC分类号： G11B7/00
CPC分类号： G11B7/0901 , G11B7/08505
摘要： A carriage servo apparatus according to the present invention comprises: a carriage for supporting a pickup that records or reproduces information relevant to an information recording face; and a carriage motor for moving the carriage in a direction parallel to the information recording face based on a motor drive signal. This carriage servo apparatus further comprises a microcomputer for detecting a minimum value of a motor drive signal required for moving the carriage from its still state, and setting a motor drive signal when recording or reproducing information, based on the detected minimum value.
摘要翻译：根据本发明的滑架伺服装置包括：用于支撑记录或再现与信息记录面有关的信息的拾取器的滑架; 以及滑架马达，用于基于马达驱动信号沿平行于信息记录面的方向移动托架。该滑架伺服装置还包括微型计算机，用于检测从其静止状态移动滑架所需的马达驱动信号的最小值，并且基于检测到的最小值，在记录或再现信息时设置马达驱动信号。

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