公开(公告)号：US5963517A

公开(公告)日：1999-10-05

申请号：US785537

申请日：1997-01-17

申请人： Harushige Nakagaki ,  Tokinori Furuichi ,  Kazuhiro Oda ,  Ryuichi Koike ,  Hideo Suenaga

发明人： Harushige Nakagaki ,  Tokinori Furuichi ,  Kazuhiro Oda ,  Ryuichi Koike ,  Hideo Suenaga

IPC分类号： G11B19/20 ,  G11B7/095 ,  G11B19/04 ,  G11B19/28 ,  G11B21/10 ,  G11B5/09 ,  G11B17/22

CPC分类号： G11B19/28 ,  G11B19/04 ,  G11B21/106 ,  G11B7/0953 ,  G11B7/0956

摘要： An method to prevent excessive heat generation of the pickup actuator from occurring when a disk has a large eccentricity or planar vibration in a high-speed disk reproducing apparatus using an optical pickup. The disk reproducing apparatus has a status determining arrangement for monitoring a present actuator drive state, an analyzing arrangement for analyzing an output signal of the status determining arrangement, and disk rotational speed switching control arrangement for selecting disk reproducing speeds according to a control signal of the identification means, thereby lowering the reproducing speed when the eccentricity or planar vibration is large. Such invention prevents heat generation of the pickup actuator from occurring because high-speed reproduction can be performed when the eccentricity or planar vibration is small, and reproduction speed can be automatically reduced when the eccentricity or planar vibration is large.

摘要翻译： 在使用光学拾取器的高速盘再现装置中，当盘具有大的偏心率或平面振动时，防止拾取器致动器过度产生热量的方法。 盘再现装置具有用于监视当前致动器驱动状态的状态确定装置，用于分析状态确定装置的输出信号的分析装置和用于根据控制信号选择盘重放速度的盘旋转速度切换控制装置 识别装置，从而当偏心或平面振动较大时降低重放速度。 这样的发明防止了拾取器致动器的发热，因为当偏心率或平面振动小时可以执行高速再现，并且当偏心率或平面振动较大时可以自动减小再现速度。

公开(公告)号：US4400807A

公开(公告)日：1983-08-23

申请号：US321761

申请日：1981-11-13

申请人： Tokinori Furuichi ,  Junichi Ikoma ,  Masao Oguri ,  Yoshio Miura ,  Keizo Shimizu

发明人： Tokinori Furuichi ,  Junichi Ikoma ,  Masao Oguri ,  Yoshio Miura ,  Keizo Shimizu

IPC分类号： G11B9/06 ,  G01D5/24 ,  G11B21/04 ,  G11B21/10

CPC分类号： G01D5/24 ,  G11B21/04

摘要： A stylus position detecting apparatus in use for a video disc player using a disc of the groove type, detecting plates for detecting leakage components of a high frequency signal supplied from a high frequency signal source and flowing through a flylead, and for reading out a recorded signal in a disc are provided on both sides of the flylead. The leakage signal components detected by the detecting plates are detected to positive and negative directions with respect to a reference voltage. These voltages obtained by the detections are added by an adder, to find a stylus position.

摘要翻译： 一种用于使用凹槽型光盘的视频盘播放机的触针位置检测装置，用于检测从高频信号源提供并流过飞叶的高频信号的泄漏分量的检测板，并用于读出记录的 光盘中的信号被提供在飞轮的两侧。 由检测板检测到的泄漏信号成分相对于参考电压被检测为正和负方向。 通过检测得到的这些电压由加法器相加，以找到触针位置。

公开(公告)号：US06700846B2

公开(公告)日：2004-03-02

申请号：US10338637

申请日：2003-01-09

申请人： Tokinori Furuichi ,  Yuji Hirai ,  Hiroyuki Hayashi ,  Gohshi Jin ,  Kazuhiro Oda ,  Naomi Nomura ,  Seiji Inaba

发明人： Tokinori Furuichi ,  Yuji Hirai ,  Hiroyuki Hayashi ,  Gohshi Jin ,  Kazuhiro Oda ,  Naomi Nomura ,  Seiji Inaba

IPC分类号： G11B390

CPC分类号： G11B7/126 ,  G11B7/127 ,  G11B2007/0006

摘要： The present invention provides a single information recording and reproducing apparatus that is used to record data to multiple disks that are to be recorded on using different wavelengths. More specifically, the present invention provides an apparatus that accurately discriminates disk types while preventing disk damage and accidental recording of data during the disk type discrimination operation. The disk type is determined using the intensity of light reflected from the disk. Information is encoded using an encoder corresponding to the disk type. The resulting signal is used to drive a laser corresponding to the disk type, and information is recorded.

摘要翻译： 本发明提供了一种用于将数据记录到将要使用不同波长记录的多个盘的单个信息记录和再现装置。 更具体地说，本发明提供了一种能够在磁盘类型识别操作期间准确地识别磁盘类型同时防止磁盘损坏和意外记录数据的装置。 使用从盘反射的光的强度确定盘类型。 使用对应于磁盘类型的编码器对信息进行编码。 所得到的信号用于驱动与盘类型对应的激光，并记录信息。

公开(公告)号：US4631458A

公开(公告)日：1986-12-23

申请号：US791344

申请日：1985-10-25

申请人： Tokinori Furuichi

发明人： Tokinori Furuichi

IPC分类号： H02P6/06 ,  H02P6/02

CPC分类号： H02P6/06

摘要： There is provided a chopping, current-control type driver circuit for brushless motor including a circuit for effecting chopping on the basis of a speed/phase error signal, a changeover circuit for changing over the current direction of Hall devices depending upon whether said error signal is positive or negative, switch circuit for supplying power to stator coils on the basis of the Hall device output, a current detection device, and an amplifier serving as an inverting amplifier or a noninverting amplifier depending upon whether the error signal is positive or negative, wherein a negative feedback signal is applied to the error signal in the form of the current value detected by the current detection device in order to control the current flowing through the motor stator.

摘要翻译： 提供了一种用于无刷电动机的斩波电流控制型驱动器电路，其包括用于基于速度/相位误差信号进行斩波的电路，用于根据所述误差信号是否改变霍尔器件的当前方向的转换电路 根据霍尔器件输出，电流检测器件和用作反相放大器或放大器的放大器，根据误差信号是正还是负，为正或负的用于向定子线圈供电的开关电路， 其中以由电流检测装置检测的电流值的形式将负反馈信号施加到误差信号，以便控制流过电动机定子的电流。

公开(公告)号：US06510115B2

公开(公告)日：2003-01-21

申请号：US09840268

申请日：2001-04-24

申请人： Tokinori Furuichi ,  Yuji Hirai ,  Hiroyuki Hayashi ,  Gohshi Jin ,  Kazuhiro Oda ,  Naomi Nomura ,  Seiji Inaba

发明人： Tokinori Furuichi ,  Yuji Hirai ,  Hiroyuki Hayashi ,  Gohshi Jin ,  Kazuhiro Oda ,  Naomi Nomura ,  Seiji Inaba

IPC分类号： G11B390

CPC分类号： G11B7/126 ,  G11B7/127 ,  G11B2007/0006

摘要： The present invention provides a single information recording and reproducing apparatus that is used to record data to multiple disks that are to be recorded on using different wavelengths. More specifically, the present invention provides an apparatus that accurately discriminates disk types while preventing disk damage and accidental recording of data during the disk type discrimination operation. The disk type is determined using the intensity of light reflected from the disk. Information is encoded using an encoder corresponding to the disk type. The resulting signal is used to drive a laser corresponding to the disk type, and information is recorded.

公开(公告)号：US4482992A

公开(公告)日：1984-11-13

申请号：US361541

申请日：1982-03-23

申请人： Keizo Shimizu ,  Katunobu Takeda ,  Tokinori Furuichi ,  Masao Oguri ,  Junichi Ikoma

发明人： Keizo Shimizu ,  Katunobu Takeda ,  Tokinori Furuichi ,  Masao Oguri ,  Junichi Ikoma

IPC分类号： G11B21/10 ,  G11B21/06 ,  G11B21/08 ,  H04N5/76 ,  G11B21/00

CPC分类号： G11B21/06 ,  G11B21/085 ,  Y10S358/907

摘要： A skip/arm servo system for a video disc player comprises a device adapted to skip a signal sensing element, such as a stylus for detection of information recorded on a disc, in a direction crossing a recording track, a stylus position detector adapted to detect the relative position of the stylus to a cartridge movably mounting the stylus, a comparator comparing the detected relative position with a reference relative position to produce an error output, a cartridge driver responsive to the error output to move the cartridge so as to maintain the stylus in the reference relative position. A setting device is adapted to variably set the reference relative position in accordance with a reproduction mode selected by the operator, whereby a special mode reproduction can readily be accomplished or the stylus can be readily released from a locked groove in the disc.

摘要翻译： 用于视频盘播放器的跳过/臂伺服系统包括适于在与记录轨道交叉的方向上跳过诸如用于检测记录在盘上的信息的触控笔的信号感测元件的设备，适于检测的触针位置检测器 触针到可移动地安装触针的盒的相对位置，将检测到的相对位置与参考相对位置进行比较以产生误差输出的比较器，响应于误差输出移动盒以便保持触笔的盒驱动器 在参考相对位置。 设置装置适于根据由操作者选择的再现模式可变地设置参考相对位置，从而可以容易地实现特殊模式再现，或者可以容易地从笔中的锁定凹槽释放触控笔。