公开(公告)号：US06801488B2

公开(公告)日：2004-10-05

申请号：US10062557

申请日：2002-02-05

Applicant: Masahiro Kato ,  Naoharu Yanagawa ,  Tatsuhiro Yone ,  Yuko Muramatsu ,  Shinji Suzuki

Inventor： Masahiro Kato ,  Naoharu Yanagawa ,  Tatsuhiro Yone ,  Yuko Muramatsu ,  Shinji Suzuki

IPC: G11B509

CPC classification number: G11B27/3027 ,  G11B7/0053 ,  G11B27/24 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562

Abstract: A pre-pit detecting apparatus which, when a light beam is radiated onto an optical recording medium having a recording surface with pre-pits repeatedly formed between tracks, receives light reflected by the recording surface with first and second light receiving faces, obtains the push-pull signal corresponding to the light receiving signals for the first and second light receiving faces, samples the push-pull signal to collect sample data for a predetermined period, and sets a threshold value between the maximum value of data corresponding to a track and the minimum value of data corresponding to a pre-pit, of the collected sample data.

Abstract translation: 一种预凹坑检测装置，当将光束照射到具有在轨迹之间重复形成的预凹坑的记录表面的光记录介质上时，接收由第一和第二光接收面由记录表面反射的光，获得推 对应于第一和第二光接收面的光接收信号的抽样信号，采样推挽信号以收集采样数据一段预定的时间，并且将对应于轨道的数据的最大值与 收集的样本数据的与预坑相对应的数据的最小值。

公开(公告)号：US07889604B2

公开(公告)日：2011-02-15

申请号：US12065154

申请日：2006-08-30

Applicant: Masahiro Kato ,  Tohru Kanegae ,  Kyusho Omori ,  Tatsuhiro Yone ,  Masahiro Miura ,  Eisaku Kawano

Inventor： Masahiro Kato ,  Tohru Kanegae ,  Kyusho Omori ,  Tatsuhiro Yone ,  Masahiro Miura ,  Eisaku Kawano

IPC: G11B21/08

CPC classification number: G11B7/00736 ,  G11B7/24038 ,  G11B20/1217 ,  G11B2007/0013 ,  G11B2020/1239 ,  G11B2020/1285 ,  G11B2220/235 ,  G11B2220/237 ,  G11B2220/2537

Abstract: An information recording medium is provided with: a first recording layer in which one portion of record information including predetermined data can be recorded, the predetermined data being (i) capable of setting a recording layer close to a physically or optically recorded state, and (ii) capable of setting the recording layer close to a buffer state for finalizing; and a second recording layer in which another portion of the record information can be recorded by laser light transmitted through the first recording layer, the information recording medium is provided with a management area in which management information can be recorded, the management information including (iii) identification information indicating whether or not there is a predetermined data recording area in which the predetermined data can be recorded, (iv) position information of the predetermined data recording area, and (v) attribute information of the predetermined data recording area.

Abstract translation: 一种信息记录介质，具有：第一记录层，其中可以记录包括预定数据的记录信息的一部分，所述预定数据是（i）能够设置靠近物理或光学记录状态的记录层，以及（ ii）能够将记录层设置为接近缓冲状态以进行定型; 以及第二记录层，其中记录信息的另一部分可以通过通过第一记录层传输的激光记录，信息记录介质设置有可以记录管理信息的管理区域，管理信息包括（iii ）指示是否存在能够记录预定数据的预定数据记录区域的识别信息，（iv）预定数据记录区域的位置信息，以及（v）预定数据记录区域的属性信息。

公开(公告)号：US20100246086A1

公开(公告)日：2010-09-30

申请号：US12732565

申请日：2010-03-26

Applicant: Tetsuya ISHIGURO ,  Tatsuhiro YONE

Inventor： Tetsuya ISHIGURO ,  Tatsuhiro YONE

IPC: H01H47/00

CPC classification number: H01F7/18 ,  F16F13/26

Abstract: A solenoid driving device with excellent electric power efficiency which drives and controls an actuator including a solenoid and an active vibration isolating support device with excellent electric power efficiency which includes the solenoid driving device are disclosed. The solenoid driving device includes a booster circuit 120 which boosts a battery voltage, and driving circuits 121A, 121B which an actuator with the electric power supplied and boosted by the booster circuit 120. ACM_ECU200A including a micro computer 200b calculates the magnitude of the vibration of the engine, an engine vibration cycle and a phase lag to obtain the drive frequency fDV of the actuator in the vibration state estimating unit 234 and the phase detecting unit 235. A booster circuit controlling unit 237 of the micro computer 200b determines the target voltage V based on the drive frequency fDV. The target voltage V is input to the booster circuit 120, and the booster circuit 120 supplies the required electric power to the driving circuits 121A, 121B at the target voltage V*.

Abstract translation: 公开了一种具有优异的电力效率的螺线管驱动装置，其驱动和控制包括螺线管的致动器和包括螺线管驱动装置的具有优异的电力效率的主动隔离支撑装置。 螺线管驱动装置包括升压电池电压的升压电路120以及具有由升压电路120提供并升压的电力的致动器的驱动电路121A，121B。包括微计算机200b的ACM_ECU200A计算振动的大小 发动机，发动机振动周期和相位滞后，以获得振动状态估计单元234和相位检测单元235中的致动器的驱动频率fDV。微型计算机200b的升压电路控制单元237确定目标电压V 基于驱动频率fDV。 目标电压V被输入到升压电路120，升压电路120以目标电压V *将所需的电力供给到驱动电路121A，121B。

公开(公告)号：US07336589B2

公开(公告)日：2008-02-26

申请号：US10827518

申请日：2004-04-20

Applicant: Masahiro Kato ,  Tatsuhiro Yone

Inventor： Masahiro Kato ,  Tatsuhiro Yone

IPC: G11B7/00

CPC classification number: G11B7/126 ,  G11B7/00456 ,  G11B7/0062

Abstract: An information recording apparatus irradiates a recording light, such as a laser light, on a recording medium, such as various kinds of optical discs, and records information. A recording pulse signal is generated based on a recording signal corresponding to the information to be recorded. The recording pulse signal is also called “strategy signal”, and the signal includes driving pulses which drive a light source for forming a recording mark on the recording medium. As to the recording light such as the laser light, the high frequency signal is superimposed for decreasing occurrence of noise due to mode hopping. The high frequency signal is generated as a digital signal, and the signal is added to the recording pulse signal to generate a driving pulse signal. Then, the light source is driven and the recording light is emitted. By generating the high frequency signal as the digital signal, it is possible to control a frequency and a phase thereof with high accuracy.

Abstract translation: 信息记录装置将诸如激光的记录光照射在诸如各种光盘的记录介质上并记录信息。 基于与要记录的信息相对应的记录信号来生成记录脉冲信号。 记录脉冲信号也称为“策略信号”，该信号包括在记录介质上驱动用于形成记录标记的光源的驱动脉冲。 对于诸如激光的记录光，叠加高频信号以减少由于跳频引起的噪声的发生。 产生高频信号作为数字信号，并将该信号加到记录脉冲信号上以产生驱动脉冲信号。 然后，驱动光源并发射记录光。 通过产生作为数字信号的高频信号，可以高精度地控制频率和相位。

公开(公告)号：US07260052B2

公开(公告)日：2007-08-21

申请号：US10701077

申请日：2003-11-05

Applicant: Masahiro Kato ,  Tatsuhiro Yone ,  Atsushi Yamaguchi ,  Eiji Muramatsu ,  Shoji Taniguchi ,  Toshihiko Takishita ,  Seiro Oshima ,  Takao Tagiri

Inventor： Masahiro Kato ,  Tatsuhiro Yone ,  Atsushi Yamaguchi ,  Eiji Muramatsu ,  Shoji Taniguchi ,  Toshihiko Takishita ,  Seiro Oshima ,  Takao Tagiri

IPC: G11B7/24

CPC classification number: G11B7/24085 ,  G11B7/0053 ,  G11B7/00745 ,  G11B7/0079

Abstract: A groove track and a land track are alternately and spirally formed on an information recording medium. On the land track neighboring the groove track, pre-information indicating position information of a track on a disc is formed as a prepit. On the information recording medium, an embossed area is formed so that information about a copyright and for preventing an illegal copy cannot be rewritten. In the embossed area, an embossed configuration including a pit and a space of predetermined depths is formed. The prepit in the embossed area is formed so that the prepit has an optimized configuration according to a pit length and a space length in the embossed area which the prepit neighbors. Consequently, interference between the embossed configuration and the prepit can be prevented even in a case that the prepit is formed in addition to the embossed configuration in the embossed area.

Abstract translation: 凹槽轨道和脊轨道交替地并螺旋地形成在信息记录介质上。 在与凹槽轨道相邻的陆地轨道上，指示盘上的轨道的位置信息的预先信息被形成为预凹坑。 在信息记录介质上，形成压花区域，使得关于版权和防止非法复制的信息不能被重写。 在压纹区域中，形成包括凹坑和预定深度空间的压纹构造。 形成压纹区域中的预凹坑形成为使得预凹坑具有根据凹坑长度和预凹坑邻近的压纹区域中的间隔长度的优化配置。 因此，即使在浮雕区域中除了压花构造之外还形成预凹坑的情况下，也可以防止压花构造与预制坑之间的干涉。

公开(公告)号：US07099255B2

公开(公告)日：2006-08-29

申请号：US10139394

申请日：2002-05-07

Applicant: Masahiro Kato ,  Naoharu Yanagawa ,  Tatsuhiro Yone ,  Yuko Muramatsu ,  Shinji Suzuki

Inventor： Masahiro Kato ,  Naoharu Yanagawa ,  Tatsuhiro Yone ,  Yuko Muramatsu ,  Shinji Suzuki

IPC: G11B7/00

CPC classification number: G11B27/34 ,  G11B7/00375 ,  G11B20/1803 ,  G11B27/36 ,  G11B2220/216 ,  G11B2220/2562

Abstract: In an error counting apparatus and method, there are provided a reproducing section for reproducing the optical disc and a counter for counting the error number of the pre-pit signal based on an output of the reproducing section. When it is detected that the reproducing section come up to the reproduction of the emboss portion, a counting operation of the counter is started in response to this detection. When it is detected that the reproducing section has reproduced the optical disc in the predetermined interval after the counting operation is started, the counting operation of the counter is stopped in response to this detection.

Abstract translation: 在误差计数装置和方法中，提供了一种用于再现光盘的再现部分和用于根据再现部分的输出对预制凹坑信号的误差数进行计数的计数器。 当检测到再现部分达到压花部分的再现时，响应于该检测开始计数器的计数操作。 当检测到再现部分在计数操作开始之后以预定间隔再现光盘时，响应于该检测停止计数器的计数操作。

公开(公告)号：US06928041B2

公开(公告)日：2005-08-09

申请号：US10062556

申请日：2002-02-05

Applicant: Masahiro Kato ,  Naoharu Yanagawa ,  Tatsuhiro Yone ,  Yuko Muramatsu ,  Shinji Suzuki

Inventor： Masahiro Kato ,  Naoharu Yanagawa ,  Tatsuhiro Yone ,  Yuko Muramatsu ,  Shinji Suzuki

IPC: G11B7/005 ,  G11B7/007 ,  G11B19/12

CPC classification number: G11B19/12 ,  G11B7/005 ,  G11B7/00745

Abstract: A pre-pit detecting apparatus which, when a light beam is radiated onto an optical recording medium having a recording surface with pre-pits repeatedly formed between tracks, receives light reflected by the recording surface with first and second light receiving faces, obtains the push-pull signal corresponding to the light receiving signals for the first and second light receiving faces, and binarizes the push-pull signal by using a threshold value to generate a pre-pit detection signal. It is judged which area of a plurality of areas including at least a not-yet-recorded area corresponds to a position of the recording surface where the light beam is radiated is performed to judge. Then the threshold value is set in accordance with the judgement result.

Abstract translation: 一种预凹坑检测装置，当将光束照射到具有在轨迹之间重复形成的预凹坑的记录表面的光记录介质上时，接收由第一和第二光接收面由记录表面反射的光，获得推 - 对应于第一和第二光接收面的光接收信号的Pull信号，并且通过使用阈值来二值化推挽信号以产生预凹坑检测信号。 判断包括至少未记录区域的多个区域的哪个区域对应于执行光束的记录表面的位置来判断。 然后根据判断结果设定阈值。

公开(公告)号：US08444124B2

公开(公告)日：2013-05-21

申请号：US12228246

申请日：2008-08-11

Applicant: Shungo Fueki ,  Tetsuya Ishiguro ,  Hiroaki Ue ,  Hirotomi Nemoto ,  Tatsuhiro Yone

Inventor： Shungo Fueki ,  Tetsuya Ishiguro ,  Hiroaki Ue ,  Hirotomi Nemoto ,  Tatsuhiro Yone

IPC: F16F15/00

CPC classification number: F16F13/26 ,  F16F15/02 ,  G05D19/02

Abstract: The natural vibration frequency of a roll resonance which does not occur since the engine rotation number is high in a normal operation range of an engine is detected at the time of engine start or stop when the engine rotation number is lower than the normal operation range, and thus the natural vibration frequency of the roil resonance can be detected with a good accuracy. A current is generated by an electromotive force of an actuator of the active vibration isolation support device excited by the engine immediately before stopping its rotation, and the frequency of the current is used to detect the natural vibration frequency of the engine, and the roll resonance of the engine is suppressed by controlling the operation of the active vibration isolation support device at the time of engine start based on the natural vibration frequency, thereby not only eliminating the need of a specific frequency detection sensor, but also effectively reducing the vibration at the time of engine start when the roll resonance becomes strong.

公开(公告)号：US20060120232A1

公开(公告)日：2006-06-08

申请号：US10542853

申请日：2003-12-25

Applicant: Naoharu Yanagawa ,  Tatsuhiro Yone ,  Masahiro Kato ,  Akira Shirota ,  Kunihiko Horikawa ,  Eiji Muramatsu

Inventor： Naoharu Yanagawa ,  Tatsuhiro Yone ,  Masahiro Kato ,  Akira Shirota ,  Kunihiko Horikawa ,  Eiji Muramatsu

IPC: G11B7/00

CPC classification number: G11B7/0945 ,  G11B7/00736 ,  G11B7/00745 ,  G11B7/0901 ,  G11B7/094 ,  G11B7/24085

Abstract: A tracking servo control device for making a tracking servo control to apply a light beam onto a groove track on a recording medium where the groove track and a pre-pit are preformed, is provided with: a first generation device which generates a first regenerative signal based on a reflected light from the recording medium when at least a part of the pre-pit is formed within a radiation range of the light beam onto the groove track; a second generation device which generates a second regenerative signal based on a reflected light from the recording medium when the pre-pit is formed outside the radiation range of the light beam; and a calculation device which calculates an offset value in the tracking servo control based on the first regenerative signal and the second regenerative signal that are generated.

Abstract translation: 一种用于进行跟踪伺服控制的跟踪伺服控制装置设置有：第一生成装置，其产生第一再生信号，所述跟踪伺服控制装置用于进行跟踪伺服控制，以将光束施加到预定凹槽轨道和预凹坑的记录介质上的凹槽轨道上 当所述光束的至少一部分在所述凹槽轨道的辐射范围内形成时，基于来自所述记录介质的反射光; 第二代装置，当预制坑形成在光束的辐射范围之外时，基于来自记录介质的反射光产生第二再生信号; 以及计算装置，其基于所生成的第一再生信号和第二再生信号，计算跟踪伺服控制中的偏移值。

公开(公告)号：US06954418B2

公开(公告)日：2005-10-11

申请号：US10067539

申请日：2002-02-07

Applicant: Naoharu Yanagawa ,  Masahiro Kato ,  Tatsuhiro Yone ,  Yuko Muramatsu ,  Shinji Suzuki

Inventor： Naoharu Yanagawa ,  Masahiro Kato ,  Tatsuhiro Yone ,  Yuko Muramatsu ,  Shinji Suzuki

IPC: G11B7/005 ,  G11B7/09 ,  G11B7/00

CPC classification number: G11B7/0943 ,  G11B7/0941

Abstract: A plurality of light receiving detectors receive a plurality of segments of a beam returning from an optical disc when a reading beam of light is radiated to the optical disc. An optical pickup assembly produces a plurality of signals from the beam segments in accordance with, for instance, optical intensities of the beam segments. A level adjusting circuit adjusts signal levels of these signals such that each of the signal levels of the signals becomes equal to a reference level. The reference level is determined from at least one of the signal levels of the received beam segments.

Abstract translation: 当读取光束被辐射到光盘时，多个光接收检测器接收从光盘返回的光束的多个段。 光拾取器组件根据例如光束段的光强度从光束段产生多个信号。 电平调整电路调节这些信号的信号电平，使得信号的每个信号电平等于参考电平。 参考电平由接收的光束段的信号电平中的至少一个确定。