公开(公告)号：US10818314B1

公开(公告)日：2020-10-27

申请号：US16405517

申请日：2019-05-07

申请人： International Business Machines Corporation

发明人： Tsuyoshi Miyamura ,  Setsuko Masuda

IPC分类号： G11B5/008 ,  G11B20/10 ,  G06F3/06 ,  G11B15/68 ,  G11B5/588 ,  G11B20/18 ,  G11B5/584 ,  G11B15/00 ,  G11B19/00

摘要： An apparatus according to one embodiment includes a controller configured to control writing operations to a magnetic recording tape. The apparatus further includes logic integrated with and/or executable by the controller for causing the controller to write user data to the magnetic recording tape in a user data area of the magnetic recording tape. Furthermore, the logic is integrated with and/or executable by the controller for causing the controller to create a housekeeping data set (HKDS) that includes location information for the user data written in the user data area, and write several copies of the HKDS in a non-user data area of the magnetic recording tape.

公开(公告)号：US09715896B2

公开(公告)日：2017-07-25

申请号：US15231374

申请日：2016-08-08

申请人： Seagate Technology LLC

发明人： Michael Louis Rancour ,  Brett Robert Herdendorf ,  Ronald Eldon Anderson

IPC分类号： G11B7/00 ,  G11B20/18 ,  G11B15/00 ,  G11B19/00 ,  G11B25/04

CPC分类号： G11B20/1816 ,  G11B5/4555 ,  G11B15/00 ,  G11B19/00 ,  G11B19/048 ,  G11B25/043

摘要： A data storage device testing system may be configured with at least a test slot, a loader assembly, and an exchange assembly. The loader assembly can be positioned to respectively engage and disengage a test deck with the test slot. The exchange assembly may be configured to open an access port portion of the test deck and subsequently replace a tested data storage component housed within the first test deck with an untested data storage component.

公开(公告)号：US09691427B2

公开(公告)日：2017-06-27

申请号：US15220734

申请日：2016-07-27

申请人： AutoChips Inc.

发明人： Jian Zhou

IPC分类号： G11B7/00 ,  G11B19/00 ,  G11B21/08 ,  G11B5/455

CPC分类号： G11B21/08 ,  G11B5/5534 ,  G11B5/5565 ,  G11B7/08505 ,  G11B21/083

摘要： A method and apparatus for detecting tightness of a pick-up head, and a method and apparatus for controlling the moving of the pick-up head are disclosed. The method for detecting the tightness of the pick-up head includes moving the pick-up head to an inner area of the disc reading device when then disc reading device is powered on, moving the pick-up head to an outer area of the disc reading device within a predetermined time period, moving the pick-up head from the outer area of the disc reading device to the inner area at a constant speed by a first fixed force, and recording the moving duration for moving the pick-up head from the outer area of the disc reading device to the inner area at the constant speed.

公开(公告)号：US09503810B2

公开(公告)日：2016-11-22

申请号：US14382212

申请日：2013-03-26

申请人： INSTITUT FUR RUNDFUNKTECHNIK GMBH

发明人： Sebastian Goossens ,  Jens Groh ,  Christian Hartmann

IPC分类号： H04B1/00 ,  H04R3/00 ,  H04S3/00 ,  H04H60/04 ,  G11B27/34 ,  G11B27/028 ,  G11B19/00

CPC分类号： H04R3/00 ,  G11B19/00 ,  G11B27/028 ,  G11B27/34 ,  G11B2220/2545 ,  H04H60/04 ,  H04S3/008

摘要： In order to realize a correction for changes in the reproduction loudness at low frequencies in a downmix-arrangement, a mixing arrangement is proposed for mixing at least two audio signals, which mixing arrangement is provided with a first unit (104) for deriving a first power signal, which is a measure for the power of the first audio signal, a second unit (105) for deriving a second power signal, which is a measure for the power of the second audio signal, a cross-correlation unit (103) for deriving a cross-correlation signal, which is a measure for a cross-correlation between the first and the second audio signal, a unit (106) for deriving multiplication parameters from the first and second power signals and the cross-correlation signal, and a multiplication and combination unit (107) for carrying out a signal processing on the first and second audio signals and combining them. The unit (106) for deriving the multiplication parameters is provided with a combination unit (110) for deriving a combination signal which is a measure for a combination of the first and second power signals and the cross-correlation signal, and is provided with a scaling unit (109) for scaling one of the signals in the unit for deriving the multiplication parameters with a scaling signal. The scaling signal (D[k]) has a frequency characteristic which is a substantially constant below a first frequency value (kL), is increasing between the first frequency value (kL) and a second higher frequency value (kU) and is again substantially constant above the second frequency value. The unit (106) for deriving the multiplication parameters is further adapted to derive a single multiplication parameter m[k]) from the combination signal, and the multiplications and combination unit (107) is adapted to carry out a signal processing on the first and second audio signals which is equivalent to multiplying the first and second audio signals with this single multiplication parameter, and combining the so multiplied first and second audio signals.

公开(公告)号：US08234005B2

公开(公告)日：2012-07-31

申请号：US12553737

申请日：2009-09-03

申请人： Matthew Thomas Starr ,  Michael Gerard Goberis

发明人： Matthew Thomas Starr ,  Michael Gerard Goberis

IPC分类号： G06F7/00 ,  G06F19/00 ,  G11B19/00

CPC分类号： G11B17/225 ,  G11B15/6835

摘要： A storage library is described including a first tape drive that is identified as a target tape drive to a host via a first address and a second tape drive that is masked from being identified by the host. The storage library further includes a controller that is linked with a switch system that shifts the first address to the second tape drive, from the first tape drive, such that after the shift, the second drive is identified as the target drive to the host and the first tape drive is masked from being identified by the host.

摘要翻译： 描述了存储库，其包括经由第一地址被识别为主机的目标磁带驱动器的第一磁带驱动器和被主机识别的第二磁带驱动器。 存储库还包括与从第一磁带驱动器将第一地址移动到第二磁带驱动器的交换机系统链接的控制器，使得在移位之后，将第二驱动器识别为主机的目标驱动器，并且 第一个磁带驱动器被主机识别。

公开(公告)号：US08189437B2

公开(公告)日：2012-05-29

申请号：US12980594

申请日：2010-12-29

申请人： Jang Ho Jin

发明人： Jang Ho Jin

IPC分类号： G11B19/00

CPC分类号： G11B19/02

摘要： An optical disc playback device is capable of being transitioned to a sleep mode in consideration of an optical disc status or an optical disc drive device status. An optical disc playback apparatus includes a main controller to transmit a sleep mode transition command to an optical disc drive device, and an optical disc drive device controller to check either a status of an optical disc or a status of the optical disc drive device when the sleep mode transition command is transmitted to the optical disc drive device, and to determine whether to perform transition to the sleep mode in response to the optical disc status or the optical disc drive device status.

摘要翻译： 考虑到光盘状态或光盘驱动装置状态，光盘播放装置能够转变到睡眠模式。 光盘播放装置包括：主控制器，用于向光盘驱动装置发送睡眠模式转换命令;以及光盘驱动装置控制器，用于检查光盘的状态或光盘驱动装置的状态 睡眠模式转换命令被发送到光盘驱动装置，并且响应于光盘状态或光盘驱动装置状态来确定是否执行到睡眠模式的转换。

公开(公告)号：US20110149703A1

公开(公告)日：2011-06-23

申请号：US12971141

申请日：2010-12-17

申请人： Akinori YUBA

发明人： Akinori YUBA

IPC分类号： G11B19/00

CPC分类号： G11B19/042 ,  G11B19/26 ,  G11B19/28

摘要： The present invention provides an optical disc apparatus that changes the number of revolutions of an optical disc on sensing resonance. The optical disc apparatus of the present invention performs both the operation of writing data on the optical disc 10 and the operation of reading data that is stored on the disc 10. The apparatus includes: a motor 12 for rotating the disc 10; an optical pickup 14, which irradiates the disc 10 with a light beam and detects the light reflected from the disc 10; an evaluation section 16 for obtaining an indicative parameter of the distortion of a signal waveform representing the light reflected from a data stored part on the disc 10 while the disc 10 is being rotated by the motor 12; and a control section 18 for changing the number of revolutions of the disc 10 per unit time if a variation in the indicative parameter of the distortion per rotation of the disc 10 exceeds a threshold value while the disc 10 is being rotated by the motor 12.

摘要翻译： 本发明提供一种光盘装置，其在检测谐振时改变光盘的转数。 本发明的光盘装置执行在光盘10上写入数据的操作和读取存储在盘10上的数据的操作。该装置包括：用于旋转盘10的马达12; 光学拾取器14，其用光束照射盘10并检测从盘10反射的光; 评估部分16，用于在盘10被电动机12旋转的同时获得表示从盘10上的数据存储部分反射的光的信号波形的失真的指示参数; 以及控制部分18，用于当盘10被电动机12旋转时，如果每次旋转的盘10的失真的指示参数的变化超过阈值，则每单位时间改变盘10的转数。

公开(公告)号：US20100260023A1

公开(公告)日：2010-10-14

申请号：US12741654

申请日：2007-11-24

申请人： Matthew J. Janssen ,  Timothy Wagner

发明人： Matthew J. Janssen ,  Timothy Wagner

IPC分类号： G11B19/00

CPC分类号： G11B19/28

摘要： An optical disc is rotated at no more than 600 revolutions per minute (RPM) using a spindle motor of an optical disc device (602). One or more input signals are received from one or more sensors disposed within the optical disc device (604). The sensors are responsive to rotation of the optical disc. Virtual spoke signals are generated based on the input signals received from the sensors (606). The optical disc is positionally controlled based on the virtual spoke signals generated, as the optical disc rotates at no more than 600 RPM (612). The virtual spoke signals correspond to actual, physical spokes that would otherwise have to be present on the optical disc to positionally control the optical disc as the optical disc rotates at no more than 600 RPM.

摘要翻译： 使用光盘装置（602）的主轴电动机将光盘旋转不超过600转/分钟（RPM）。 从设置在光盘装置（604）内的一个或多个传感器接收一个或多个输入信号。 传感器响应于光盘的旋转。 基于从传感器（606）接收的输入信号生成虚拟辐条信号。 当光盘以不超过600RPM转动时，基于所产生的虚拟辐条信号来对光盘进行位置控制。 虚拟辐条信号对应于在光盘以不超过600RPM转动时否则必须存在于光盘上的实际物理轮辐，以便位置地控制光盘。

公开(公告)号：US20100214891A1

公开(公告)日：2010-08-26

申请号：US12681457

申请日：2008-10-02

申请人： Joji Anzai ,  Kousei Sano ,  Eishin Mori ,  Hideki Aikoh ,  Hirotaka Ueno

发明人： Joji Anzai ,  Kousei Sano ,  Eishin Mori ,  Hideki Aikoh ,  Hirotaka Ueno

IPC分类号： G11B7/135 ,  G11B7/00 ,  G11B19/00

CPC分类号： G11B7/131 ,  G11B7/1275 ,  G11B2007/0006

摘要： A first light source 1a emits a first light flux with a first wavelength. A second light source 1b emits a second light flux with a second wavelength that is different from the first wavelength and a third light flux with a third wavelength that is different from the first wavelength and the second wavelength. A collimator lens 6, a first objective lens 9, and a second objective lens 10 collect the first to third light fluxes as converged light on an optical disc. A first composite photodetector 13 detects the reflected light fluxes from the optical disc. The first composite photodetector 13 includes a first quartered light-receiving unit 13a that receives a light flux obtained by reflection of at least one light flux from among the first to third light fluxes from the optical disc and a second quartered light-receiving unit 13b that receives a light flux obtained by reflection of the remaining light fluxes from the optical disc. Such configuration ensures compatibility with optical discs of at least three kinds and enables miniaturization.

摘要翻译： 第一光源1a发射具有第一波长的第一光通量。 第二光源1b发射具有不同于第一波长的第二波长的第二光束和具有不同于第一波长和第二波长的第三波长的第三光束。 准直透镜6，第一物镜9和第二物镜10将第一至第三光束作为会聚光收集在光盘上。 第一复合光电检测器13检测来自光盘的反射光束。 第一复合光电检测器13包括第一四分之一的光接收单元13a，其接收从来自光盘的第一至第三光束中的至少一个光通量的反射获得的光束和第二四分之一的光接收单元13b， 接收通过从光盘反射剩余光束而获得的光通量。 这样的配置确保与至少三种的光盘的兼容性，并且能够实现小型化。

公开(公告)号：US20100195459A1

公开(公告)日：2010-08-05

申请号：US12760935

申请日：2010-04-15

申请人： Soichiro Eto ,  Koichi Watanabe ,  Takahiro Kurokawa

发明人： Soichiro Eto ,  Koichi Watanabe ,  Takahiro Kurokawa

IPC分类号： G11B19/00

CPC分类号： G11B7/0062 ,  G11B7/1267

摘要： A power adjustment method in which a modulation index is calculated from reproduced signals of patterns recorded by irradiating light onto an optical information recording medium with a recording power varied and an optimum power of irradiation light is set up using the modulation index. The power adjustment method includes calculating an optimum value PcO of a predetermined correction term Pc using a relation of a value obtained by subtracting the predetermined correction term Pc from the recording power and the modulation index, finding a value Pth of the recording power at which the modulation index becomes substantially zero in the relation of the value obtained by subtracting the optimum value PcO from the recording power and the modulation index, and setting up a value obtained by multiplying the value of Pth by a predetermined constant as a recording power of each of the recording patterns.

摘要翻译： 一种功率调整方法，其中根据通过将光照射到记录功率变化的光信息记录介质上记录的图案的再现信号来计算调制指数，并且使用调制指数建立照射光的最佳功率。 功率调整方法包括使用通过从记录功率减去预定校正项Pc和调制指数获得的值的关系来计算预定校正项Pc的最佳值PcO，找到记录功率的记录功率的值Pth， 调制指数在通过从记录功率减去最佳值PcO而获得的值与调制指数之间的关系基本上为零，并且将通过将Pth的值乘以预定常数获得的值作为每个的记录功率 录音模式。