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    SYSTEM FOR DEMODULATING A SIGNAL
    27.
    发明申请
    SYSTEM FOR DEMODULATING A SIGNAL 有权
    用于解调信号的系统

    公开(公告)号：US20120081693A1

    公开(公告)日：2012-04-05

    申请号：US13260584

    申请日：2010-03-24

    申请人： Marcel Schemmann ,  Atanas Pentchev ,  Carsten Heinks ,  Aalbert Stek

    发明人： Marcel Schemmann ,  Atanas Pentchev ,  Carsten Heinks ,  Aalbert Stek

    IPC分类号： G01P3/36 ,  H03D3/24 ,  H03D1/24 ,  H04L27/06

    CPC分类号： G06F3/0317 ,  H04L27/22

    摘要： A demodulating system (100) for demodulating a phase-modulated input signal (Si) comprises: a complex demodulator (110), having a first input (111) for receiving the phase-modulated input signal (Si) and being designed to perform complex multiplication of this signal with an approximation of the inverse of the phase modulation; a spectrum analyzing device (130) receiving the demodulated product signal produced by the complex demodulator (110) and capable of analyzing the frequency spectrum of the demodulated product signal.

    摘要翻译： 用于解调相位调制输入信号（Si）的解调系统（100）包括：复数解调器（110），具有用于接收相位调制输入信号（Si）的第一输入端（111），并被设计成执行复合 该信号与相位调制的逆的近似相乘; 频谱分析装置（130），接收由所述复数解调器（110）产生的解调产品信号，并能够分析所述解调产物信号的频谱。

    Methods of calibrating a clock using multiple clock periods with a single counter and related devices and methods
    28.
    发明授权
    Methods of calibrating a clock using multiple clock periods with a single counter and related devices and methods 有权
    使用单个计数器和相关设备和方法使用多个时钟周期校准时钟的方法

    公开(公告)号：US07881895B2

    公开(公告)日：2011-02-01

    申请号：US12127336

    申请日：2008-05-27

    申请人： Jacobus Cornelis Haartsen ,  Aalbert Stek

    发明人： Jacobus Cornelis Haartsen ,  Aalbert Stek

    IPC分类号： G01D18/00

    CPC分类号： H03L7/00 ,  H03L1/00 ,  H04W52/029 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

    摘要： A method of calibrating a first clock signal using a second clock signal and a plurality of calibration periods may include generating incremented counter values at a counter responsive to edges of the second clock signal. For at least two of the plurality of calibration periods, an initial incremented counter value from the counter may be stored in memory at an initial edge of the first clock signal for the respective calibration period, a final incremented counter value may be stored in memory at a final edge of the clock signal for the respective calibration period, and the at least two of the plurality of calibration periods may be overlapping with different initial and final edges of the first clock signal. For each of the plurality of calibration periods, a number of edges of the second clock signal occurring during the respective calibration period may be determined using the initial and final incremented counter values stored in memory. A relationship between the first and second clock signals may be determined using a sum of a number of edges of the second clock signal occurring during each of the plurality of calibration periods and using a sum of a number of first clock signal cycles occurring during each of the plurality of calibration periods.

    摘要翻译： 使用第二时钟信号和多个校准周期来校准第一时钟信号的方法可以包括响应于第二时钟信号的边缘在计数器处产生递增的计数器值。 对于多个校准周期中的至少两个，来自计数器的初始递增的计数器值可以在相应的校准周期的第一时钟信号的初始边缘存储在存储器中，最后增加的计数器值可以存储在存储器中 用于相应校准周期的时钟信号的最后边缘，并且多个校准周期中的至少两个可以与第一时钟信号的不同初始和最后边缘重叠。 对于多个校准周期中的每一个，可以使用存储在存储器中的初始和最后递增的计数器值来确定在各个校准周期期间发生的第二时钟信号的边缘数量。 第一和第二时钟信号之间的关系可以使用在多个校准周期中的每一个期间发生的第二时钟信号的边缘数之和并且使用在每个校准周期期间发生的多个第一时钟信号周期的和 多个校准周期。

    Writing data to an optical disc
    30.
    发明授权
    Writing data to an optical disc 有权
    将数据写入光盘

    公开(公告)号：US07428196B2

    公开(公告)日：2008-09-23

    申请号：US10540802

    申请日：2003-12-01

    申请人： Johannis Friso Rendert Blacquiere ,  Cornelis Marinus Schep ,  Aalbert Stek ,  Theodorus Petrus Henricus Gerardus Jansen

    发明人： Johannis Friso Rendert Blacquiere ,  Cornelis Marinus Schep ,  Aalbert Stek ,  Theodorus Petrus Henricus Gerardus Jansen

    IPC分类号： G11B27/22 ,  G11B7/00 ,  G11B5/09

    CPC分类号： G11B20/1883 ,  G11B19/04 ,  G11B20/12 ,  G11B20/1258 ,  G11B2020/1295 ,  G11B2020/1297 ,  G11B2220/20 ,  G11B2220/216 ,  G11B2220/257

    摘要： When writing data to an optic disc with a constant linear velocity, and encountering a disc error, data is written into the defect management area of the disc without changing the rotational speed of the disc, or at least without changing the rotational speed of the disc sufficiently to maintain a constant linear velocity. This allows an increase in the rate at which data may be written to the optical disc. It also avoids or reduces the need for the rotational speed of the disc to be changed, which allows a further improvement in the time taken to write data to the disc. In order to continue writing data to the disc without changing the rotational speed, the data rate must be increased while writing to the defect management area. For this to be possible, the data must be written into an “iced” or unformatted part of the defect management area.

    摘要翻译： 当以恒定的线速度向光盘写数据并且遇到盘错误时，将数据写入盘的缺陷管理区而不改变盘的转速，或者至少不改变盘的转速 足以保持恒定的线速度。 这允许数据可以写入光盘的速率的增加。 它还避免或减少了要改变盘的旋转速度的需要，这允许进一步改进向盘写入数据所需的时间。 为了在不改变转速的情况下继续将数据写入盘中，必须在写入缺陷管理区域时增加数据速率。 为了可以这样做，数据必须写入缺陷管理区域的“冰”或非格式化部分。