Method and apparatus for detecting position of blank area of optical disc
    71.
    发明授权
    Method and apparatus for detecting position of blank area of optical disc 有权
    用于检测光盘空白区域位置的方法和装置

    公开(公告)号:US07397739B2

    公开(公告)日:2008-07-08

    申请号:US10905183

    申请日:2004-12-20

    IPC分类号: G11B7/00

    CPC分类号: G11B20/10 G11B27/034

    摘要: An apparatus for detecting position of blank areas for an optical disc in an optical disc drive according to a wobble signal and a blank signal includes an address decoder for generating a physical address value according to the wobble signal; a counting device coupled to the address decoder for generating a count value according to the wobble signal; and a decision circuit coupled to the counting device for determining whether the count value is within a predetermined range when the edge of the blank signal occurs. If the count value is within the predetermined range when the blank edge occurs, the decision circuit generates a position value corresponding to a blank area of the optical disc.

    摘要翻译: 根据摆动信号和空白信号检测光盘驱动器中的光盘的空白区域的位置的装置包括:地址解码器,用于根据摆动信号产生物理地址值; 计数装置,其耦合到所述地址解码器,用于根据所述摆动信号产生计数值; 以及耦合到所述计数装置的判定电路,用于当所述空白信号的边缘出现时确定所述计数值是否在预定范围内。 如果在发生空白边缘时计数值在预定范围内,则判定电路产生对应于光盘空白区域的位置值。

    BOC SIGNAL ACQUISITION AND TRACKING METHOD AND APPARATUS
    72.
    发明申请
    BOC SIGNAL ACQUISITION AND TRACKING METHOD AND APPARATUS 审中-公开
    BOC信号采集和跟踪方法和设备

    公开(公告)号:US20080159198A1

    公开(公告)日:2008-07-03

    申请号:US11616610

    申请日:2006-12-27

    IPC分类号: H04B7/14

    摘要: A BOC signal acquisition and tracking apparatus and method. In the present invention, at least a BOC signal, a BOC-cos signal and a PRN coded signal are generated for a received signal. Depending on application condition (e.g. acquisition mode or tracking mode), autocorrelation of the BOC signal is combined with cross-correlation of the BOC signal and one of the BOC-cos signal and the PRN coded signal to generate a proper combined correlation result.

    摘要翻译: BOC信号采集跟踪装置及方法。 在本发明中,为接收信号生成至少BOC信号,BOC-cos信号和PRN编码信号。 根据应用条件(例如采集模式或跟踪模式),BOC信号的自相关与BOC信号与BOC-cos信号和PRN编码信号之一的互相关相结合,以产生适当的组合相关结果。

    Adaptive filter with GSPT LMS algorithm for reducing complexity
    73.
    发明授权
    Adaptive filter with GSPT LMS algorithm for reducing complexity 有权
    具有GSPT LMS算法的自适应滤波器,用于降低复杂度

    公开(公告)号:US07239660B2

    公开(公告)日:2007-07-03

    申请号:US10250174

    申请日:2003-06-10

    IPC分类号: H03H7/30

    CPC分类号: H03H21/0043 H03H2021/0056

    摘要: A linear/non-linear adaptive filter for transforming an input signal to an output signal. The present invention also includes a novel GSPT LMS algorithm for significantly reducing complexity. The adaptive filter includes a coefficient updater that can execute a Carry-in operation or a Borrow-in operation to adaptively adjust a filtering coefficient according to whether an updating term signal is a Carry-in signal or a Borrow-in signal.

    摘要翻译: 一种用于将输入信号转换为输出信号的线性/非线性自适应滤波器。 本发明还包括用于显着降低复杂度的新型GSPT LMS算法。 自适应滤波器包括系数更新器,其可以执行进位操作或借入操作,以根据更新项信号是进位信号还是借入信号自适应地调整滤波系数。

    Ear thermometer
    74.
    发明申请
    Ear thermometer 审中-公开
    耳温度计

    公开(公告)号:US20060153272A1

    公开(公告)日:2006-07-13

    申请号:US11032130

    申请日:2005-01-11

    IPC分类号: G01J5/00

    摘要: An ear thermometer has a main body and a probe projected from the main body. The ear thermometer has a casing, a sensor module and a tube. The casing has an opening formed in a front side thereof. The sensor module is installed inside the casing, and has a diameter of between 3.2 mm and 5.6 mm. The tube is installed between the casing and the sensor module for positioning the sensor module inside the casing. The diameter of the probe is reduced for insertion into an external ear canal of a human, and especially that of a baby, to measure true temperature.

    摘要翻译: 耳温度计具有从主体突出的主体和探头。 耳温度计具有壳体,传感器模块和管。 壳体具有形成在其前侧的开口。 传感器模块安装在外壳内部,直径在3.2mm和5.6mm之间。 管安装在壳体和传感器模块之间,用于将传感器模块定位在壳体内。 探针的直径减小,以便插入人的外耳道,特别是婴儿的外耳道,以测量真实的温度。

    Visor
    75.
    外观设计
    Visor 有权

    公开(公告)号:USD522697S1

    公开(公告)日:2006-06-06

    申请号:US29218072

    申请日:2004-11-29

    申请人: Chun-Nan Chen

    设计人: Chun-Nan Chen

    METHOD AND APPARATUS FOR DETECTING SPECIFIC SIGNAL PATTERN IN A SIGNAL READ FROM AN OPTICAL DISC
    76.
    发明申请
    METHOD AND APPARATUS FOR DETECTING SPECIFIC SIGNAL PATTERN IN A SIGNAL READ FROM AN OPTICAL DISC 失效
    用于检测光信号中的特定信号模式的方法和装置

    公开(公告)号:US20060077849A1

    公开(公告)日:2006-04-13

    申请号:US11160289

    申请日:2005-06-17

    IPC分类号: G11B7/00

    CPC分类号: G11B7/0053 G11B2220/2562

    摘要: A method utilized for detecting a physical mark in a signal read from an optical disc, including: generating a matching signal capable of being utilized to identify the physical mark according to a reference clock and a wobble clock; generating a comparison signal by comparing the matching signal and a wobble data signal; determining whether a period of which the level of the comparison signal surpass a predetermined level within a predetermined period is greater than a threshold or not; and if the period greater than the threshold, generating an indication signal corresponding to the location of the physical mark. Wherein the wobble data signal and the wobble clock is generated according to the read back signal.

    摘要翻译: 一种用于检测从光盘读取的信号中的物理标记的方法,包括:产生能够用于根据参考时钟和摆动时钟识别物理标记的匹配信号; 通过比较匹配信号和摆动数据信号来产生比较信号; 确定比较信号的电平在预定时段内是否超过预定电平的时间段是否大于阈值; 并且如果所述周期大于所述阈值,则产生与所述物理标记的位置相对应的指示信号。 其中根据回读信号产生摆动数据信号和摆动时钟。

    Detector for detecting information carried by a signal having a sawtooth-like shape
    78.
    发明申请
    Detector for detecting information carried by a signal having a sawtooth-like shape 有权
    用于检测由具有锯齿状形状的信号携带的信息的检测器

    公开(公告)号:US20050018576A1

    公开(公告)日:2005-01-27

    申请号:US10893333

    申请日:2004-07-19

    摘要: A detector for detecting information carried by a signal having a sawtooth-like shape. The detector includes a low-pass filter for receiving the wobble signal and filtering the wobble signal to generate a filtered signal, a comparator for comparing the wobble signal with the filtered signal and generating a compared signal, and a detecting unit for receiving the compared signal and generating a bit signal according to the duty cycle of the compared signal. The bit signal is a first value when the duty cycle of the compared signal is greater than a predetermined value, and the bit signal is a second value when the duty cycle of the compared signal is smaller than the predetermined value.

    摘要翻译: 一种用于检测由锯齿状形状的信号携带的信息的检测器。 检测器包括用于接收摆动信号并对摆动信号进行滤波以生成滤波信号的低通滤波器,用于将摆动信号与滤波信号进行比较并产生比较信号的比较器,以及用于接收比较信号的检测单元 并根据比较信号的占空比产生位信号。 当比较信号的占空比大于预定值时,位信号是第一值,当比较信号的占空比小于预定值时,位信号是第二值。