利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

316 条记录 (耗时 0.013 秒)

    MAGNETIC HEAD DEVICE
    4.
    发明公开
    MAGNETIC HEAD DEVICE 有权
    MAGNETKOPFVORRICHTUNG

    公开(公告)号：EP2693432A1

    公开(公告)日：2014-02-05

    申请号：EP12764573.7

    申请日：2012-03-28

    申请人： Nidec Sankyo Corporation

    发明人： NAKAJIMA, Shigeo ,  HIGASHI, Katsuhisa

    IPC分类号： G11B5/09 ,  G06K17/00

    CPC分类号： G06K7/082 ,  G06K7/084 ,  G11B5/00808 ,  G11B5/09 ,  G11B20/10037

    摘要： The present application provides a magnetic head device that can suppress output fluctuation even though the output changes in part of an output waveform from the magnetic head. Concretely to describe, the magnetic head device includes a magnetic head 1 for reproducing information recorded in a magnetic information recording medium; an amplifier section 2 for amplifying a reproduced signal that the magnetic head 1 has reproduced, by using a gain; an A/D converter section 3 for converting the reproduced signal that has been amplified, to a digital signal, by way of sampling the signal at predetermined intervals, in order to output the converted digital signal; a signal comparator section 4a for comparing a digital signal output value with a predetermined output criterion value; and a gain control section 4b for adjusting the gain in such a way as to make the output value closer to the output criterion value, in the case where the output value is either greater or smaller than the output criterion value.

    摘要翻译： 本申请提供了一种磁头装置，其可以抑制输出波动，即使输出部分地从磁头的输出波形变化。 具体来说，磁头装置包括用于再现记录在磁信息记录介质中的信息的磁头1; 用于通过使用增益放大磁头1已经再现的再现信号的放大器部分2; A / D转换器部分3，用于通过以预定间隔对信号进行采样，将已放大的再现信号转换为数字信号，以输出转换的数字信号; 用于将数字信号输出值与预定输出标准值进行比较的信号比较器部分4a; 以及增益控制部分4b，用于在输出值大于或小于输出标准值的情况下，调节增益以使输出值更接近输出标准值。

    Optical disc device
    5.
    发明公开
    Optical disc device 审中-公开
    光盘设备

    公开(公告)号：EP2662857A2

    公开(公告)日：2013-11-13

    申请号：EP13163423.0

    申请日：2013-04-11

    申请人： Funai Electric Co., Ltd.

    发明人： Sehara, Syunsuke ,  Shimizu, Shinya

    IPC分类号： G11B7/09

    CPC分类号： G11B20/10037 ,  G11B7/0903 ,  G11B7/094 ,  G11B20/10046 ,  G11B20/10388 ,  G11B2220/2537

    摘要： An optical disc device (1) includes an optical pickup (4) that causes a laser beam to be incident on an optical disc (2) and detects a reflected beam, an A/D converting means that converts into a digital signal a plurality of analog signals obtained from the reflected beam detected by the optical pickup (4), a servo error signal generating means (5) that generates a servo signal for the optical pickup (4) based on the digital signal converted by the A/D converting means, a noise removing means that removes noise of a specific band included in the servo error signal generated by the servo error signal generating means, a noise removal band switching means that switches a noise removal band of the noise removing means based on states of the optical disc, and a servo controlling means that performs servo control for the optical pickup (4) based on the servo error signal from which the noise has been removed by the noise removing means.

    摘要翻译： 光盘装置（1）包括使激光束入射到光盘（2）上并检测反射光束的光学拾取器（4），将数个信号转换成数字信号的A / D转换装置 从由光学拾取器（4）检测的反射光束获得的模拟信号，基于由A / D转换装置（4）转换的数字信号产生用于光学拾取器（4）的伺服信号的伺服误差信号产生装置（5） 噪声除去单元，除去由上述伺服误差信号生成单元生成的上述伺服误差信号中包含的特定频带的噪声;噪声除去频带切换单元，基于上述光学系统的状态，切换上述噪声除去单元的噪声除去频带 以及伺服控制装置，该伺服控制装置基于已由噪声去除装置去除了噪声的伺服误差信号来执行对光学拾取器（4）的伺服控制。

    Forensic method for classifying unauthorised digital movie-projection recaptures
    6.
    发明公开
    Forensic method for classifying unauthorised digital movie-projection recaptures 审中-公开
    Forensik Verfahren zur Klassifizierung von digitalen erneuten Film Projektionserfassungen

    公开(公告)号：EP2546832A1

    公开(公告)日：2013-01-16

    申请号：EP11305899.4

    申请日：2011-07-11

    申请人： Thomson Licensing

    发明人： Rolland-Neviere, Xavier ,  Chupeau, Bertrand ,  Doerr, Gwenael ,  Blonde, Laurent

    IPC分类号： G11B20/00 ,  H04N1/32 ,  G06K9/00 ,  H04N5/225 ,  H04N5/76

    CPC分类号： G11B20/00086 ,  G06K9/00744 ,  G11B20/00166 ,  G11B20/00173 ,  G11B20/00579 ,  G11B20/10037 ,  H04N21/2585 ,  H04N21/8358

    摘要： The invention relates to a method for classifying video content projection recaptures, recaptured for instance with a personal camcorder, for forensic purposes.
    The digital copy of the video content is discriminated, either as recorded from a digital projection of the video content, or as recorded from the projection of a celluloid film of the video content.
    The automated method makes use of discriminating algorithm as a function of fingerprint extracted from the digital copy, the fingerprint being at least one of: (i) spatial illumination uniformity; (ii) on-screen vertical stability; and (iii) amplitude of the temporal illumination pulse phenomenon.

    摘要翻译： 本发明涉及一种用于分类视频内容投影再捕获的方法，例如用个人摄录机重新捕获，用于取证目的。 视频内容的数字副本被鉴别为从视频内容的数字投影记录，或从视频内容的赛璐id电影的投影记录。 该自动化方法利用鉴别算法作为从数字拷贝提取的指纹的函数，指纹是以下至少一个：（i）空间照度均匀性; （ii）屏幕垂直稳定性; 和（iii）时间照明脉冲现象的幅度。

    Systems and methods for format efficient timing recovery in a read channel
    7.
    发明公开
    Systems and methods for format efficient timing recovery in a read channel 审中-公开
    的信道的读出期间为有效的存储格式时钟恢复方面的系统和方法

    公开(公告)号：EP2270789A1

    公开(公告)日：2011-01-05

    申请号：EP09170122.7

    申请日：2009-09-11

    申请人： LSI Corporation

    发明人： Ratnakar Aravind, Nayak

    IPC分类号： G11B20/10 ,  G11B20/12 ,  G11B20/14

    CPC分类号： G11B20/1403 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/10037 ,  G11B20/10222 ,  G11B20/10527 ,  G11B20/1217 ,  G11B20/1876 ,  G11B2020/10759 ,  G11B2020/1281 ,  G11B2220/2516

    摘要： Various embodiments of the present invention provide systems, methods and media formats for processing user data derived from a storage medium. As an example, a system is described that includes a storage medium with a series of data. The series of data includes a servo data and a user data region. The user data region includes a first synchronization pattern and a second synchronization pattern located a distance from the first synchronization pattern. A storage buffer is provided that is operable to receive at least a portion of the series of data. A retiming circuit calculates an initial phase offset and frequency offset for a defined bit within the storage buffer using a first location of the first synchronization pattern and a second location of the second synchronization pattern. An error correction loop circuit re-samples the series of data from the storage buffer based at least in part on the initial phase offset and a frequency offset.

    摘要翻译： 本发明的各种实施例提供的系统，方法和媒体格式，用于处理从存储介质得到的用户数据。 如在实施例中，一个系统被描述那样包括具有一系列数据的存储介质中。 该数据序列包括伺服数据和用户数据区域。 所述用户数据区包括第一同步模式和位于从所述第一同步模式的距离的第二同步模式。 本发明提供一种存储缓冲器确实是可操作来接收至少该串行数据的一部分。 甲再定时电路，以计算初始相位偏离和频率用于使用所述第一同步模式的第一位置和第二同步模式的第二位置的存储缓冲区内所定义的位偏移量。 误差校正环电路重新采样来自至少部分基于所述初始相位偏离和频率偏离的存储缓冲器中的一系列数据。

    Systems and methods for hard disk drive data storage including reduced latency loop recovery
    8.
    发明公开
    Systems and methods for hard disk drive data storage including reduced latency loop recovery 审中-公开
    系统和Verfahren zur Festplattenlaufwerkdatenspeicherung mit verringerter Latenzkreiswiederherstellung

    公开(公告)号：EP2267712A1

    公开(公告)日：2010-12-29

    申请号：EP09170125.0

    申请日：2009-09-11

    申请人： LSI Corporation

    发明人： Ratnakar Aravind, Nayak

    IPC分类号： G11B20/10

    CPC分类号： G11B20/10009 ,  G11B20/10037 ,  G11B20/10046 ,  G11B20/10222 ,  G11B2220/2516

    摘要： Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is discussed that includes a summation circuit, a data detector circuit, an error feedback circuit, and an error calculation circuit. The summation circuit subtracts a low frequency offset feedback from an input signal to yield a processing output. The data detector circuit applies a data detection algorithm to a derivative of the processing output and provides an ideal output. The error feedback circuit includes a conditional subtraction circuit that conditionally subtracts an interim low frequency offset correction signal from a delayed version of the derivative of the processing output to yield an interim factor. The error calculation circuit generates an interim low frequency offset correction signal based at least in part on the interim factor and a derivative of the ideal output. In such embodiments, the low frequency offset feedback is derived from the interim low frequency offset correction signal.

    摘要翻译： 本发明的各种实施例提供了用于数据处理的系统和方法。 作为示例，讨论了包括求和电路，数据检测器电路，误差反馈电路和误差计算电路的数据处理电路。 求和电路从输入信号中减去低频偏移反馈以产生处理输出。 数据检测器电路将数据检测算法应用于处理输出的导数，并提供理想的输出。 误差反馈电路包括条件减法电路，其从处理输出的导数的延迟版本中有条件地减去临时低频偏移校正信号以产生临时因子。 误差计算电路至少部分地基于临时因子和理想输出的导数来产生临时低频偏移校正信号。 在这样的实施例中，低频偏移反馈是从临时低频偏移校正信号导出的。

    DATA CONVERSION DEVICE, PROGRAM AND METHOD
    10.
    发明公开
    DATA CONVERSION DEVICE, PROGRAM AND METHOD 审中-公开
    DATENUMWANDLUNGSVORRICHTUNG，-PROGRAMM UNDERVERHREN

    公开(公告)号：EP2244260A1

    公开(公告)日：2010-10-27

    申请号：EP09712740.1

    申请日：2009-02-20

    申请人： Kabushiki Kaisha Kenwood

    发明人： NAKAMURA, Masami

    IPC分类号： G11B20/10 ,  G10L19/00 ,  H03H17/00

    CPC分类号： G11B20/10 ,  G11B20/10037 ,  G11B2020/00057 ,  G11B2020/10546 ,  G11B2220/2545 ,  H03M1/207

    摘要： A data conversion device is provided with a data converting means that sequentially converts first data into second data of the number of second bits, wherein an analog signal is quantized into the first data by the number of first bits, and the first and second data can be first and second maximum values, respectively. The data converting means is comprised of a first conversion means (steps 21 and 23) that, when a value of the fast data is not the first maximum value, converts the first data to the second data by adding 0 to a lower bit side of the first data and a second conversion means (steps 21 and 24-26) that converts the first data to the second data so that, when a value of the first data is the fast maximum value, a value can be made larger, in accordance with a value be-fore or after the first data, than the data of the number of second bits obtained by adding 0 to the lower bit side of the first data. With the structure, when the data obtained by quantizing an analog signal is converted to data with the number of more bits, a rounding error by quantizing is improved as much as possible.

    摘要翻译： 数据转换装置具有数据转换装置，该数据转换装置将第一数据顺序地转换成第二位数的第二数据，其中模拟信号通过第一位的数量被量化为第一数据，第一和第二数据可以 分别为第一和第二最大值。 数据转换装置包括第一转换装置（步骤21和23），当快速数据的值不是第一最大值时，通过将第一数据添加到第二数据的下位 第一数据和第二转换装置（步骤21和24-26），其将第一数据转换为第二数据，使得当第一数据的值是快速最大值时，可以根据 比第一数据之前或之后的值比通过将0加到第一数据的低位侧获得的第二位数的数据。 利用该结构，当通过量化模拟信号获得的数据被转换成具有更多位数的数据时，尽可能地改进通过量化的舍入误差。