公开(公告)号：US08169867B2

公开(公告)日：2012-05-01

申请号：US12260118

申请日：2008-10-29

申请人： Kouji Fujita

发明人： Kouji Fujita

IPC分类号： G11B7/00

CPC分类号： G11B7/08517 ,  G11B7/0953

摘要： In an optical disc drive apparatus, when a start time of a tracking pull-in operation is adjusted according to the eccentricity amount of the optical disc, a suitable starting point of the tracking pull-in operation can be always captured and the pull-in operation of the tracking control can be stably performed, without depending on the eccentricity amount of the optical disc. Further, the eccentricity amount and an eccentricity phase are detected from a track zero crossing signal before the tracking pull-in, and an eccentricity compensation signal of the track is added to the tracking control signal. As a result, also in the optical disc with the large eccentricity amount, the tracking pull-in operation can be stably performed.

摘要翻译： 在光盘驱动装置中，当根据光盘的偏心量来调整跟踪引入操作的开始时间时，可以始终捕获跟踪引入操作的合适的起始点并且引入 可以稳定地执行跟踪控制的操作，而不依赖于光盘的偏心量。 此外，在跟踪拉入之前从轨道过零信号检测偏心量和偏心相位，并且轨道的偏心补偿信号被添加到跟踪控制信号。 结果，即使在偏心量大的光盘中，也能够稳定地进行追踪拉入动作。

公开(公告)号：US07967462B2

公开(公告)日：2011-06-28

申请号：US12361849

申请日：2009-01-29

申请人： Kenji Ogiro ,  Nobuo Masuoka ,  Kouji Fujita

发明人： Kenji Ogiro ,  Nobuo Masuoka ,  Kouji Fujita

IPC分类号： G09F13/04 ,  G02F1/13357

CPC分类号： G02F1/133608 ,  G02F1/133603 ,  G02F1/133611 ,  G02F2001/133607

摘要： A light source includes a plurality of light emitting elements, and each light emitting element is disposed in such a manner that a direction of an optical axis of the light emitting element having a highest luminance is disposed at a predetermined inclination angle relative to a plane of the liquid crystal display. The optical guide member has an optical guide portion of a wedge shape having a first flat plane generally perpendicular to the optical axis of each light emitting element for receiving light from each light emitting element and a second flat plane having a predetermined angle relative to the optical axis and intersecting the first flat plane at an acute angle for reflecting light. A plurality of optical guide portions are disposed in a plane and formed integrally along a predetermined direction corresponding to the inclination direction of the light emitting elements.

摘要翻译： 光源包括多个发光元件，并且每个发光元件以这样的方式设置，使得具有最高亮度的发光元件的光轴的方向相对于 液晶显示。 光导构件具有楔形的光导部分，其具有大致垂直于每个发光元件的光轴的第一平面，用于接收来自每个发光元件的光，以及相对于光学器件具有预定角度的第二平面 并以锐角与第一平面相交以反射光。 沿着与发光元件的倾斜方向对应的规定方向一体地配置有多个导光部。

公开(公告)号：US07693017B2

公开(公告)日：2010-04-06

申请号：US11493232

申请日：2006-07-25

申请人： Takahiro Matsuda ,  Kouji Fujita

发明人： Takahiro Matsuda ,  Kouji Fujita

IPC分类号： G11B7/00

CPC分类号： G11B21/12 ,  G11B7/0956 ,  G11B7/121

摘要： In a conventional method for preventing a collision between a lens and an optical disc which uses a control system similar to the servo control of the optical disc, it is feared that, when there is no need to apply the servo, the collision prevention method may not perform its function satisfactorily. In an optical disc device that operates with a part of its functions suspended for reduced power consumption, the conventional method is not enough to avoid the collision between the lens and the optical disc. By arranging the lens/disc collision prevention mechanism independently operable, it is possible to prevent the collision between the lens and the disc even during the operation with limited functions.

摘要翻译： 在防止使用与光盘的伺服控制类似的控制系统的透镜和光盘之间的碰撞的现有方法中，担心当不需要施加伺服时，防撞方法可以 不能令人满意地履行其功能。 在其功能部分暂停运行以降低功耗的光盘装置中，常规方法不足以避免透镜和光盘之间的碰撞。 通过设置可独立操作的透镜/光盘碰撞防止机构，即使在功能有限的操作期间也可以防止透镜和光盘之间的碰撞。

公开(公告)号：US07660223B2

公开(公告)日：2010-02-09

申请号：US12054426

申请日：2008-03-25

申请人： Kouji Fujita

发明人： Kouji Fujita

IPC分类号： G11B7/00

CPC分类号： G11B7/0908 ,  G11B7/0946

摘要： A disc device includes a lens that focuses a laser light on an optical disc surface, a focus drive unit that drives the lens in a focusing direction, a focus control unit that controls to focus the laser light on the optical disc surface, a focus displacement detecting unit that detects a displaced amount in the focusing direction, a differentiation unit that differentiates a focus displacement detected signal, and a unit that inverts a sign of a differentiated signal, thereby, the disc device is driven intermittently to restrain a motion of an objective lens in a focusing direction and avoid colliding the objective lens with the optical disc surface.

摘要翻译： 光盘装置包括将激光聚焦在光盘表面上的透镜，聚焦驱动透镜的聚焦驱动单元，控制将激光聚焦在光盘表面上的聚焦控制单元，聚焦位移 检测单元，其检测聚焦方向上的偏移量;微分单元，其区分聚焦位移检测信号;以及微分单元，其反转微分信号的符号，由此间歇地驱动盘装置以抑制目标的运动 透镜在聚焦方向上，并避免物镜与光盘表面碰撞。

公开(公告)号：US07247834B2

公开(公告)日：2007-07-24

申请号：US10684484

申请日：2003-10-15

申请人： Kouji Fujita

发明人： Kouji Fujita

IPC分类号： G06M7/00 ,  H01J40/14

CPC分类号： G01V8/10

摘要： An object of the present invention is to enable the detection of the presence/absence of an object over a plurality of detection areas without using a plurality of light-receiving devices and light-emitting devices. A sensor detects the presence/absence of an object in a detection area where a light-emitting area of a light-emitting device and a light-receiving area of a light-receiving device are overlapped with each other, and includes: a power supply unit that outputs a driving current I of the light-emitting device such that its current value is variable; a control unit that has the function of controlling the power supply unit to change in magnitude of the driving current I of the light-emitting device, and determining the presence/absence of an object based on an output from the light-receiving device to output the result of determination as a detection signal; and an output signal 50 that converts the detection signal into an analog signal to output the converted signal as a signal α.

摘要翻译： 本发明的目的是能够在不使用多个光接收装置和发光装置的情况下，在多个检测区域上检测物体的存在/不存在。 传感器检测发光装置的发光区域和受光装置的受光区域彼此重叠的检测区域中的物体的存在/不存在，并且包括：电源 输出发光装置的驱动电流I使其电流值可变的单元; 控制单元，其具有控制电源单元以改变发光装置的驱动电流I的大小的功能，并且基于来自光接收装置的输出来确定对象的存在/不存在，以输出 作为检测信号的判定结果; 以及将检测信号转换为模拟信号以输出转换的信号作为信号α的输出信号50。

公开(公告)号：US20060225909A1

公开(公告)日：2006-10-12

申请号：US10554914

申请日：2004-04-27

申请人： Akinori Kurimoto ,  Kouji Fujita ,  Hiroshi Yamashita

发明人： Akinori Kurimoto ,  Kouji Fujita ,  Hiroshi Yamashita

IPC分类号： H01B11/06

CPC分类号： H01B7/365 ,  H01B13/012 ,  H01B13/34

摘要： A first marking 20 and a second marking 30, indicating a connection form, are provided on a covering sheath 11 at a connection position of a first wire 10 serving as a main wire. Therefore, an operation is carried out at a region between the first marking 20 and the second marking 30 of the first wire 10 according to an operation form indicated by the second marking 30. Therefore, the predetermined form of operation can be carried out errorlessly at the predetermined position of the first wire 10 without consulting a manual or the like.

摘要翻译： 表示连接形式的第一标记20和第二标记30在用作主线的第一线10的连接位置处设置在覆盖护套11上。 因此，根据第二标记30所示的操作形式，在第一线10的第一标记20和第二标记30之间的区域进行操作。因此，可以无规则地执行预定操作形式 第一线10的预定位置，而不咨询手册等。

公开(公告)号：US5521769A

公开(公告)日：1996-05-28

申请号：US136766

申请日：1993-10-15

申请人： Atsuo Suga ,  Shigemitsu Higuchi ,  Kouji Fujita ,  Toshiro Aizawa ,  Minoru Kosuge

发明人： Atsuo Suga ,  Shigemitsu Higuchi ,  Kouji Fujita ,  Toshiro Aizawa ,  Minoru Kosuge

IPC分类号： G11B5/588 ,  G11B15/18 ,  G11B15/467 ,  G11B20/18 ,  G11B21/04 ,  G11B5/584

CPC分类号： G11B5/588 ,  G11B15/1808 ,  G11B15/4673 ,  G11B20/18 ,  G11B2020/183

摘要： A magnetic tape drive in a helical scan system can shorten retry operation time. A data signal reproduced from magnetic tape through reproducing heads is supplied to a regenerative signal processing circuit. If an uncorrectable error is contained in the signal, the regenerative signal processing circuit outputs error information to a system controller. Then, the system controller sends a retry instruction to a movable head controller. When receiving the retry instruction, the movable head controller supplies movable head control signals to displacement elements which then displace the reproducing heads along a rotating shaft of a rotary drum for re-scanning an error occurrence data track. This retry operation is repeated until no error is detected. The magnetic tape is run at lower speed or is stopped as required during the repetitive retry operation.

摘要翻译： 螺旋扫描系统中的磁带驱动器可以缩短重试操作时间。 从磁带通过再现头再现的数据信号被提供给再生信号处理电路。 如果信号中包含不可纠正的错误，则再生信号处理电路向系统控制器输出错误信息。 然后，系统控制器向可动头控制器发送重试指令。 当接收到重试指令时，可移动头控制器将可移动的头部控制信号提供给位移元件，该位移元件然后沿着旋转鼓的旋转轴移动再现头，用于重新扫描错误发生数据轨道。 重复该重试，直到没有检测到错误。 磁带以较低速度运行或在重复重试操作期间根据需要停止。

公开(公告)号：US5500775A

公开(公告)日：1996-03-19

申请号：US136641

申请日：1993-10-13

申请人： Kouji Fujita ,  Shigemitsu Higuchi ,  Toshiro Aizawa ,  Atsuo Suga ,  Minoru Kosuge

发明人： Kouji Fujita ,  Shigemitsu Higuchi ,  Toshiro Aizawa ,  Atsuo Suga ,  Minoru Kosuge

IPC分类号： G11B5/588 ,  G11B15/087 ,  G11B15/467 ,  G11B15/52 ,  G11B20/12 ,  G11B21/04

CPC分类号： G11B15/4675 ,  G11B15/087 ,  G11B15/52

摘要： A data recording and reproducing apparatus of a helical scanning system includes a unit for recording and reproducing an information signal in an oblique information track on a magnetic tape by a rotary magnetic head and a unit for recording and reproducing a control signal on the magnetic tape in a longitudinal direction thereof. Further, the data recording and reproducing apparatus includes a memory unit for storing a difference (X-value error information) between a predetermined X value and a distance (X value) between a record starting position of the information track and a recorded position of the control signal, a unit for recording X-value error information on the magnetic tape individually each time information is recorded, a unit for reproducing X-value error information on the magnetic tape, and a unit for shifting a reproduced phase of the control signal in accordance with the X-value error information.

摘要翻译： 螺旋扫描系统的数据记录和再现装置包括用于通过旋转磁头在磁带上的倾斜信息轨道中记录和再现信息信号的单元，以及用于在磁带上记录和再现控制信号的单元 其纵向方向。 此外，数据记录和再现装置包括存储单元，用于存储预定X值与信息轨道的记录开始位置与记录位置之间的距离（X值）之间的差值（X值误差信息） 控制信号，用于在记录每次时间信息时分别记录磁带上的X值误差信息的单元，用于再现磁带上的X值误差信息的单元，以及用于将控制信号的再现相位移位的单元 根据X值错误信息。

公开(公告)号：US5471352A

公开(公告)日：1995-11-28

申请号：US89528

申请日：1993-07-21

申请人： Kouji Fujita ,  Shigemitsu Higuchi

发明人： Kouji Fujita ,  Shigemitsu Higuchi

IPC分类号： G11B5/53 ,  G11B5/592 ,  G11B15/087 ,  G11B15/12 ,  G11B15/18 ,  G11B27/10 ,  G11B27/13 ,  G11B27/32 ,  G11B27/36 ,  H04N5/7826 ,  H04N5/783

CPC分类号： H04N5/78266 ,  G11B15/087 ,  G11B15/125 ,  G11B15/1875 ,  G11B27/107 ,  G11B27/13 ,  G11B27/323 ,  G11B27/36 ,  G11B5/53 ,  G11B5/592 ,  H04N5/783

摘要： A recording/playback apparatus wherein rotary heads play back positional information recorded on a magnetic tape which can travel rapidly in a search operation. Piezoelectric actuators extend the rotary heads, an actuator driver drives the piezoelectric actuators, and a microprocessor controls the actuator driver. A target position on the magnetic tape is designated through a control panel by a user of the apparatus. The processor controls the actuator driver so as to hold the heads out of contact with the tape in a pause or stop mode of the apparatus, and so as to bring the heads into temporary contact with the tape at least once before the tape is caused to travel to the target position, whereupon the processor detects the positional information on the tape. When the target position has been approached, the processor controls the actuator driver so as to hold the heads in contact with the tape, and it detects the positional information. Thus, while providing a rapid search, the apparatus can prevent the heads and the tape from wearing away and can detect the target position precisely.

摘要翻译： 一种记录/重放装置，其中旋转头回放记录在可在搜索操作中快速行进的磁带上的位置信息。 压电致动器延伸旋转头，致动器驱动器驱动压电致动器，并且微处理器控制致动器驱动器。 通过设备的用户通过控制面板指定磁带上的目标位置。 处理器控制致动器驱动器，以便在设备的暂停或停止模式下使磁头与磁带不接触，并且在磁带被引导之前至少使磁头与磁带暂时接触一次 行进到目标位置，于是处理器检测到磁带上的位置信息。 当接近目标位置时，处理器控制致动器驱动器，以便保持头与磁带接触，并且它检测位置信息。 因此，在提供快速搜索的同时，该装置可以防止头部和带子磨损，并且可以精确地检测目标位置。

公开(公告)号：US5138504A

公开(公告)日：1992-08-11

申请号：US493407

申请日：1990-03-14

申请人： Hideo Nishijima ,  Kooji Kaniwa ,  Kouji Fujita ,  Yuji Inaba

发明人： Hideo Nishijima ,  Kooji Kaniwa ,  Kouji Fujita ,  Yuji Inaba

IPC分类号： G11B15/46 ,  G11B15/467 ,  G11B15/48

CPC分类号： G11B15/48 ,  G11B15/46 ,  G11B15/4675

摘要： A tape transport control apparatus relating to changing means of high speed reel control transport and low speed capstan control transport in a tape transport control of a magnetic recording regenerative apparatus or the like. Particularly in a period of transition from the high speed driving state to the low speed driving state, a capstan motor is controlled through means for comparing phase of the control signal of the tape transport speed regenerated on the tape with phase of the capstan frequency generator signal of the capstan, and after the phase comparing means detects that the tape speed and the capstan rotational speed are coincident, the pinch roller is pressed against the capstan.

摘要翻译： 一种磁带传送控制装置，涉及在磁记录再生设备等的磁带传送控制中的高速卷轴控制传输和低速主导轴控制传输的改变装置。 特别是在从高速驱动状态向低速驱动状态转变的时段中，主导马达通过用于比较在带上再生的带传送速度的控制信号与主导轴频率发生器信号的相位的相位的装置进行控制 并且在相位比较装置检测到磁带速度和主导轴转速一致之后，压紧辊被压靠在主导轴上。