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71. 发明授权

US5789891A Speed detection apparatus, speed control motor, and track jump control circuit 失效
标题翻译：速度检测装置，速度控制电机和轨道跳转控制电路
公开(公告)号：US5789891A
公开(公告)日：1998-08-04
申请号：US607565
申请日：1996-02-27
申请人： Hiroshi Nakane
发明人： Hiroshi Nakane
IPC分类号： G11B5/55 , G11B7/085 , G11B19/247 , G11B21/08 , H02P6/06 , G11B7/00
CPC分类号： G11B5/5526 , G11B19/247 , G11B21/083 , G11B7/08529 , G11B7/08588
摘要： A track jump control circuit includes a head; a rotary motor which drives the head and is controlled in accordance with an input signal; a unit for detecting a speed of rotation corresponding to the rotation of the rotary motor; distance detection unit for producing a signal corresponding to a distance which the head should move with using no data read by the head when the head is moved to a desired position; speed setting unit for setting a speed of movement of the head based on the signal produced by the distance detection unit; and a unit for comparing a speed detected by the speed detection unit with a speed set by the speed setting unit to produce an output as the input signal to the rotary motor.
摘要翻译：轨道跳跃控制电路包括一个头部; 旋转马达，其驱动头部并根据输入信号进行控制; 用于检测与旋转电动机的旋转相对应的旋转速度的单元; 距离检测单元，用于当头部移动到期望位置时，不使用头部读取的数据来产生对应于头应该移动的距离的信号; 速度设定单元，用于基于距离检测单元产生的信号来设定头部的移动速度; 以及用于将由速度检测单元检测的速度与由速度设定单元设定的速度进行比较以将输出作为输入信号的旋转电机进行比较的单元。

72. 发明授权

US5606206A Device for detecting the position of an optical or magnetic head used on linear motors 失效
标题翻译：用于检测线性电机上使用的光学头或磁头的位置的装置
公开(公告)号：US5606206A
公开(公告)日：1997-02-25
申请号：US419341
申请日：1995-04-10
申请人： Thomas M. Stephany , Edward P. Furlani
发明人： Thomas M. Stephany , Edward P. Furlani
IPC分类号： G11B7/085 , G11B21/08 , H02K11/00 , H02K41/035 , H02K41/02 , H02K41/00
CPC分类号： G11B7/08588 , G11B21/083 , H02K41/0356 , H02K11/00
摘要： In one embodiment, a device for detecting the position of a head attached to a linear motor, the detection device comprises an extension member for guiding and directing flux therein. A moving coil disposed on the extension member which coil, when energized, moves along the extension for positioning the head. A magnet positioned in a spaced apart relationship with the coil for inducing a drive flux which assists in imparting the motion to the coil when the coil is energized. A first wall is positioned adjacent the linear motor. A second wall is positioned in a spaced apart relationship with the first wall. A first and second magnet both include a north and south pole oriented along their cross-sectional dimension for generating a magnetic field substantially between the first and second walls; wherein the south pole of the first magnet is in abutting contact with the first wall and the north pole of the second magnet is in abutting contact with the first wall; wherein the north pole of the first magnet is in abutting contact with the second wall and the south pole of the second magnet is in abutting contact with the second wall. A sensor is attached to and moving in unison with the coil and positioned between the first and second walls for detecting the magnetic flux between the walls for ultimately determining the position of the magnetic head.
摘要翻译：在一个实施例中，一种用于检测附接到线性电动机的头部的位置的装置，所述检测装置包括用于引导和引导通量的延伸部件。设置在所述延伸构件上的动圈，当被激励时，所述线圈沿着所述延伸部移动以定位所述头部。与线圈间隔开的磁体，用于感应驱动磁通，该磁通有助于当线圈通电时向线圈施加运动。第一个壁位于线性电机附近。第二壁与第一壁以间隔开的关系定位。第一和第二磁体都包括沿其横截面尺寸定向的北极和南极，用于基本上在第一和第二壁之间产生磁场; 其中，所述第一磁体的所述南极与所述第一壁抵接，所述第二磁体的北极与所述第一壁抵接; 其中所述第一磁体的北极与所述第二壁抵接，并且所述第二磁体的所述南极与所述第二壁抵接。传感器附接到线圈并与线圈一致并且位于第一和第二壁之间，用于检测壁之间的磁通量，以最终确定磁头的位置。

73. 发明授权

US5191568A Disc drive apparatus with tracking control based on multiple reference tracks and with automatic seek time adjustment 失效
标题翻译：具有基于多个参考轨迹的跟踪控制和自动寻道时间调整的盘驱动装置
公开(公告)号：US5191568A
公开(公告)日：1993-03-02
申请号：US628475
申请日：1990-12-17
申请人： Takayasu Muto , Mamoru Osato , Junkichi Sugita , Masami Kashiwagi , Toru Tanaka , Hidekazu Seto
发明人： Takayasu Muto , Mamoru Osato , Junkichi Sugita , Masami Kashiwagi , Toru Tanaka , Hidekazu Seto
IPC分类号： G11B5/55 , G11B7/085 , G11B7/09 , G11B21/08
CPC分类号： G11B5/5547 , G11B21/085 , G11B7/08517 , G11B7/08588 , G11B7/0901
摘要： The present invention provides a disc drive apparatus having an improved tracking control and seek time adjustment. The head tracking error distribution along the disc radius is determined with reference to the phases of a plurality of position sensors and is calculated based on the tracking error of a reference track in first and second reference regions with respect to the signal from one of the position sensors. This information is used to determine the tracking error distribution along the disc radius with respect to that one of the position sensors. The tracking error distribution is used to determine the tracking error of a reference track in a third reference region with respect to the signal from the same position sensor. This tracking error is used to determine the tracking error of other reference tracks in the third reference region with respect to the signals from other of the position sensors. The tracking error of the reference tracks is then used to determine the tracking error of the data tracks on the disc. The present invention also provides a disc drive apparatus having an automatic seek time adjustment. A predetermined number of tracks is moved through based on a set head velocity. The seek time is compared to a prescribed seek time. If the two times differ, the velocity is adjusted until the prescribed seek time is achieved.
摘要翻译：本发明提供一种具有改进的跟踪控制和寻道时间调整的盘驱动装置。参考多个位置传感器的相位确定沿着盘半径的磁头跟踪误差分布，并且基于第一和第二参考区域中的参考磁道的跟踪误差来计算相对于位置传感器。该信息用于确定相对于该位置传感器的盘半径的跟踪误差分布。跟踪误差分布用于确定相对于来自相同位置传感器的信号的第三参考区域中的参考轨迹的跟踪误差。该跟踪误差用于相对于来自其它位置传感器的信号来确定第三参考区域中的其它参考轨道的跟踪误差。然后使用参考轨道的跟踪误差来确定盘上的数据轨迹的跟踪误差。本发明还提供一种具有自动寻道时间调整的盘驱动装置。基于设定的头部速度移动预定数量的轨迹。寻找时间与规定的寻道时间进行比较。如果两次不同，则调整速度直到达到规定的寻道时间。

74. 发明授权

US4918676A Track accessing apparatus for optical disk 失效
标题翻译：跟踪光盘的访问设备
公开(公告)号：US4918676A
公开(公告)日：1990-04-17
申请号：US226308
申请日：1988-07-29
申请人： Toshiyuki Miyasaka
发明人： Toshiyuki Miyasaka
IPC分类号： G11B7/085 , G11B21/08 , G11B27/10
CPC分类号： G11B7/08588
摘要： In order to access to a destination track, a CPU compares a present track number and a destination track number to derive out the track difference and the transfer direction of an objective lens in an optical head. Then, it derives out the sum of transfer time and processing time and determines whether or not sector "0" is passed during the total period of time. If it is determined that sector "0" is passed and when the objective lens is transferred inwardly of an optical disk, the number of tracks obtained by adding one to the track difference is supplied to a tracking controller. Then, the tracking controller drives a driving coil according to the received number of tracks so as to set the objective lens to the destination track. Further, if it is determined that sector "0" is passed and when the objective lens is transferred outwardly of the optical disk, the number of tracks obtained by subtracting one from the track difference is supplied to the tracking controller. Then, the tracking controller drives the driving coil according to the received number of tracks so as to set the objective lens to the destination track.
摘要翻译：为了访问目的地轨道，CPU比较当前轨道号和目的地轨道号，以导出光头中的物镜的轨迹差和传送方向。然后，得出传输时间和处理时间的总和，并确定在整个时间段内扇区“0”是否通过。如果确定扇区“0”通过，并且当物镜在光盘内向内传送时，通过将一个加到轨道差异获得的轨道数被提供给跟踪控制器。然后，跟踪控制器根据接收到的轨道数量驱动驱动线圈，以将物镜设置到目的地轨道。此外，如果确定通过扇区“0”，并且当物镜从光盘向外传送时，通过从磁迹差减去1而获得的磁道的数量被提供给跟踪控制器。然后，跟踪控制器根据接收到的轨道数驱动驱动线圈，以将物镜设置到目的地轨道。

75. 发明授权

US4644514A Head drive control apparatus 失效
标题翻译：头驱动控制装置
公开(公告)号：US4644514A
公开(公告)日：1987-02-17
申请号：US609849
申请日：1984-05-14
申请人： Ken Ohshima , Hiroo Okada , Masaharu Sakamoto
发明人： Ken Ohshima , Hiroo Okada , Masaharu Sakamoto
IPC分类号： G11B7/085 , G11B21/08 , G11B21/10 , G11B21/02
CPC分类号： G11B21/083 , G11B21/085 , G11B7/08588
摘要： A head drive control apparatus has a head and a scale reader. When the head is moved by a head drive mechanism, the scale reader detects the marks on a scale and converts them into a scale signal. In a speed control mode, the scale signal is compared with a target signal by an access signal generator, which produces an access signal representing the difference between the compared signals. The head is moved in accordance with the access signal until the scale signal becomes identical with the target signal. When these signals become equal, the speed control mode is switched to a position control mode. In the position control mode, a scale signal generator, a pulse generator, an up/down counter, a D/A converter, an adder and an interpolator convert the scale signal into an analog signal which represents the position of the head. The analog signal is compared with a position designating signal by a differential amplifier. The head is moved in accordance with the output signal of this amplifier.
摘要翻译：头驱动控制装置具有头和刻度读取器。当头部由头驱动机构移动时，刻度读取器检测刻度上的标记并将其转换成刻度信号。在速度控制模式中，通过存取信号发生器将刻度信号与目标信号进行比较，其产生表示比较信号之间的差的存取信号。根据访问信号移动头，直到缩放信号变得与目标信号相同。当这些信号变得相等时，速度控制模式被切换到位置控制模式。在位置控制模式中，刻度信号发生器，脉冲发生器，上/下计数器，D / A转换器，加法器和内插器将标尺信号转换成表示头部位置的模拟信号。模拟信号通过差分放大器与位置指示信号进行比较。根据该放大器的输出信号移动磁头。

76. 发明授权

US4583212A Record/playback head positioning device for optical disc apparatus 失效
标题翻译：用于光盘装置的记录/回放头定位装置
公开(公告)号：US4583212A
公开(公告)日：1986-04-15
申请号：US522126
申请日：1983-08-11
申请人： Hiroshi Koide , Junichi Watanabe
发明人： Hiroshi Koide , Junichi Watanabe
IPC分类号： G11B7/085 , G11B7/09 , G11B21/02 , G11B21/08 , G11B3/36
CPC分类号： G11B7/0927 , G11B21/02 , G11B21/085 , G11B7/08582 , G11B7/08588
摘要： An optical disc recording and playback apparatus has a record/playback head adapted to write data into and read them out of information tracks formed on a rotatable optical disc. A carriage carrying the head therewith is driven by a linear motor in the radial direction of the disc perpendicular to the tracks, and then stopped and held at a desired track position. Thereafter, a tracking control is performed by allowing the head to move in the radial direction within a predetermined range.
摘要翻译：光盘记录和重放装置具有适于将数据写入数据并将其从可旋转光盘上形成的信息轨迹中读出的记录/重放头。承载头部的托架在垂直于轨道的盘的径向方向上由线性马达驱动，然后停止并保持在期望的轨道位置。此后，通过允许磁头在预定范围内沿径向方向移动来进行跟踪控制。

77. 发明授权

US4481613A Optical disk apparatus 失效
标题翻译：光盘装置
公开(公告)号：US4481613A
公开(公告)日：1984-11-06
申请号：US373788
申请日：1982-04-30
申请人： Tsuneshi Yokota
发明人： Tsuneshi Yokota
IPC分类号： G02B7/28 , G11B7/085 , G11B21/08 , G11B21/10
CPC分类号： G11B7/08523 , G11B7/085 , G11B7/08535 , G11B7/08588
摘要： An optical head is mounted on a carrier of a linear motor, and is moved at a high speed to a desired track, i.e., a target position, of an optical disk by the linear motor. In the optical head, a laser oscillator for generating a laser beam, a tracking unit for tracking a laser beam and a focusing unit for focusing a laser beam onto an optical disk are integrally assembled.
摘要翻译：光学头安装在线性电动机的载体上，并通过线性电动机以高速移动到光盘的期望轨迹，即目标位置。在光头中，一体地组装用于产生激光束的激光振荡器，用于跟踪激光束的跟踪单元和用于将激光束聚焦到光盘上的聚焦单元。

78. 发明授权

US07921435B2 Optical disk drive 有权
标题翻译：光盘驱动器
公开(公告)号：US07921435B2
公开(公告)日：2011-04-05
申请号：US11574068
申请日：2006-03-16
申请人： Takahiro Sato , Katsuya Watanabe
发明人： Takahiro Sato , Katsuya Watanabe
IPC分类号： G11B7/00
CPC分类号： G11B7/08505 , G11B7/08588 , G11B7/121 , G11B7/24
摘要： An optical disk drive according to the present invention includes: an optical pickup 6 including a light source 23 that radiates a light beam 21 to irradiate an optical disk 100, at least one objective lens 22 for converging the beam 21, and an actuator that can move the lens 22 perpendicularly to the disk 100; a transport stage 11 for displacing the pickup 6 in a disk radial direction; a rim detecting section 30 for sensing if the irradiated position of the beam 21 has passed an outer edge of the disk 100 while the pickup 6 is being displaced from an inner area of the disk toward the outer edge thereof to conduct a seek operation; and a control section 40 for getting the lens 22 retracted away from the disk 100 by the actuator and getting the pickup 6 displaced toward the inner area of the disk by the transport stage 11 if the irradiated position of the light beam 21 has been sensed to have passed the outer edge of the disk 100.
摘要翻译：根据本发明的光盘驱动器包括：光学拾取器6，其包括照射光束21以照射光盘100的光源23，用于会聚光束21的至少一个物镜22.以及能够将透镜22垂直于盘100移动; 用于使拾取器6沿盘径向移位的传送台11; 边缘检测部分30，用于在拾取器6从盘的内部区域向其外边缘移动时，检测光束21的照射位置是否已经通过盘100的外边缘，以进行寻道操作; 以及控制部分40，用于使透镜22通过致动器从光盘100缩回，并且如果已经感测到光束21的照射位置，则使得拾取器6由传送台11朝向盘的内部区域移位已经通过了盘100的外边缘。

79. 发明授权

US07177237B2 Method of detecting orientation of optical disk drive 失效
标题翻译：检测光盘驱动器方向的方法
公开(公告)号：US07177237B2
公开(公告)日：2007-02-13
申请号：US10721027
申请日：2003-11-24
申请人： Jen-Yu Hsu , Hsiang-Yi Fu , Tun-Chieh Lee , Fu-Hsiang Chen , Yao-Chou Tsai
发明人： Jen-Yu Hsu , Hsiang-Yi Fu , Tun-Chieh Lee , Fu-Hsiang Chen , Yao-Chou Tsai
IPC分类号： G11B7/085
CPC分类号： G11B7/08588
摘要： The present invention discloses a method of detecting orientation of an optical disk drive. Firstly, a first moving distance is measured by using a first force driven on a movable optical pick up head of the optical disk drive for a preset period. Next, a second moving distance is measured by using a second force driven on the movable optical pick up head for the preset period, wherein the second force and the first force have opposite direction but the same amplitude. Next, it is determined that the optical disk drive is horizontal orientation when the difference between the first and second moving distances falls within a pre-determined value. Additionally, a first moving time is measured by using a first force driven on a movable optical pick up head for a pre-determined distance. Then, a second moving distance is measured by using a second force driven on the movable optical pick up head for the pre-determined distance, wherein the second force and the first force have opposite direction but the same amplitude. Next, when the difference between the first and second moving time falls within a pre-determined value, the optical disk drive is horizontal orientation.
摘要翻译：本发明公开了一种检测光盘驱动器的取向的方法。首先，通过使用在光盘驱动器的可移动光学拾取头上驱动的第一力预定时间段来测量第一移动距离。接下来，通过使用在可移动光学拾取头上驱动的预定时段的第二力来测量第二移动距离，其中第二力和第一力具有相反的方向但相同的幅度。接下来，当第一和第二移动距离之间的差落在预定值内时，确定光盘驱动器是水平取向。此外，通过使用在可移动光学拾取头上驱动的预定距离的第一力来测量第一移动时间。然后，通过使用驱动在可移动光学拾取头上的预定距离的第二力来测量第二移动距离，其中第二力和第一力具有相反的方向但相同的幅度。接下来，当第一和第二移动时间之间的差落在预定值内时，光盘驱动器是水平取向。

80. 发明申请

US20050146997A1 Position control of optical head in a recording device 失效
标题翻译：记录装置中光头的位置控制
公开(公告)号：US20050146997A1
公开(公告)日：2005-07-07
申请号：US11053229
申请日：2005-02-08
申请人： Peter Mahr
发明人： Peter Mahr
IPC分类号： G11B7/085 , G11B21/08
CPC分类号： G11B7/08529 , G11B7/08588 , G11B21/085
摘要： A data player or a method in which a reading and/or writing head is positioned according to anyone of 3 methods or combinations thereof: Calculating a desirable speed curve to position the head from a first to a second position and adjust the speed of the head's movement to the desirable speed, calculating and outputting an amount of energy to a driving mechanism to move the head a determined number of steps, increasing the power applied to a driving mechanism until the head is moved for one step. The positioning may additionally be used to perform coarse positioning while the head is positioned on a track of a data medium using a fine positioning mechanism.
摘要翻译：一种数据播放器或其中根据3种方法或其组合中的任何一种来定位读取和/或书写头的方法：计算期望的速度曲线以将头部从第一位置到第二位置并且调整头部的速度运动到期望的速度，计算并输出一定量的能量到驱动机构以使头移动确定的步数，增加施加到驱动机构的功率，直到头移动一步。当头部使用精细定位机构定位在数据介质的轨道上时，定位可另外用于执行粗略定位。

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