Method for controlling handoff of IEEE 802.22 network-based mobile terminal
    1.
    发明授权
    Method for controlling handoff of IEEE 802.22 network-based mobile terminal 有权
    控制IEEE 802.22网络移动终端切换的方法

    公开(公告)号:US09565614B2

    公开(公告)日:2017-02-07

    申请号:US14369810

    申请日:2011-12-29

    CPC classification number: H04W36/32 H04W36/08

    Abstract: The present invention relates to a method for controlling handoff of a mobile terminal, and more specifically, to a method for controlling handoff of a mobile terminal in an IEEE 802.22 wireless regional area network (WRAN) communication standard for defining communication of a fixed terminal which uses a frequency band that is not regionally used among television broadcasting frequency bands.

    Abstract translation: 本发明涉及一种用于控制移动终端的切换的方法,更具体地,涉及用于在IEEE 802.22无线区域网(WRAN)通信标准中控制移动终端切换的方法,用于定义固定终端的通信 使用在电视广播频带中不区域使用的频带。

    Data modulation method, modulator, recording method, and recording apparatus
    3.
    发明授权
    Data modulation method, modulator, recording method, and recording apparatus 有权
    数据调制方法,调制器,记录方法和记录装置

    公开(公告)号:US08495461B2

    公开(公告)日:2013-07-23

    申请号:US12678682

    申请日:2008-09-11

    Applicant: Jun Lee

    Inventor: Jun Lee

    Abstract: A data modulation method and a data error correction method are provided. The data modulation method includes generating a channel sequence for an input sequence, determining whether or not the channel sequence violates a Run Length Limit (RLL) constraint, and performing, when the channel sequence violates the RLL constraint, bit flip at a position prior to a position at which the RLL constraint is violated among positions of bits included in the channel sequence. The data error correction method includes detecting an error bit of received data using a parity check matrix, determining whether or not the error bit is an error caused by bit flip, and correcting the error bit when the error bit is an error caused by bit flip for applying an RLL constraint.

    Abstract translation: 提供了数据调制方法和数据纠错方法。 数据调制方法包括产生用于输入序列的信道序列,确定信道序列是否违反运行长度限制(RLL)约束,并且当信道序列违反RLL限制时,执行比特翻转 在通道序列中包含的位的位置之间违反RLL约束的位置。 数据纠错方法包括使用奇偶校验矩阵检测接收到的数据的错误位,确定错误位是否是由位翻转引起的错误,以及当错误位是由位翻转引起的错误时校正错误位 用于应用RLL约束。

    METHOD OF DETECTING AND CORRECTING A PRESCRIBED SET OF ERROR EVENTS BASED ON ERROR DETECTING CODE
    5.
    发明申请
    METHOD OF DETECTING AND CORRECTING A PRESCRIBED SET OF ERROR EVENTS BASED ON ERROR DETECTING CODE 失效
    基于错误检测代码检测和校正一组规定的错误事件的方法

    公开(公告)号:US20100162087A1

    公开(公告)日:2010-06-24

    申请号:US12623540

    申请日:2009-11-23

    CPC classification number: H03M13/033 H03M13/09

    Abstract: A method of constructing an effective generator polynomial for error correction by which a unique set of syndromes for each error event is produced is provided. The method includes preparing a set of dominant error events from the intersymbol interference characteristics of media; and generating a codeword from the data using a non-primitive generator polynomial that produces a unique syndrome set which can completely specify each dominant error event.

    Abstract translation: 提供一种构建用于纠错的有效生成多项式的方法,通过该方法产生用于每个错误事件的一组唯一的综合征。 该方法包括从媒体的符号间干扰特性准备一组主要的误差事件; 以及使用产生可以完全指定每个主要错误事件的唯一校正子集的非原始生成多项式从数据生成码字。

    Encoding and decoding methods and apparatuses for recording system
    9.
    发明授权
    Encoding and decoding methods and apparatuses for recording system 失效
    用于记录系统的编码和解码方法和装置

    公开(公告)号:US07414551B2

    公开(公告)日:2008-08-19

    申请号:US10945045

    申请日:2004-09-21

    CPC classification number: H03M13/1148 H03M13/1177 H03M13/2963 H03M13/6331

    Abstract: A method and apparatus for encoding and decoding data for a recording system. The method of encoding data involves encoding input data into a predetermined code and precoding the predetermined code so that output levels of a channel can be detected, the channel being defined by a predetermined channel polynomial.

    Abstract translation: 一种用于对记录系统的数据进行编码和解码的方法和装置。 编码数据的方法包括将输入数据编码为预定码并对预定码进行预编码,使得可以检测信道的输出电平,该信道由预定信道多项式定义。

    Information reproducing apparatus
    10.
    发明申请
    Information reproducing apparatus 有权
    信息重放装置

    公开(公告)号:US20070121232A1

    公开(公告)日:2007-05-31

    申请号:US11606030

    申请日:2006-11-30

    CPC classification number: G11B20/10009 G11B20/10333

    Abstract: An information reproducing apparatus which reproduces information recorded on a medium includes an asymmetry correction circuit configured to correct an asymmetry of a signal read from a medium. The apparatus also includes a first high pass filter installed before the asymmetry correction circuit and configured to remove noise in the signal by a first cut-off frequency. The apparatus also includes a second high pass filter installed after the asymmetry correction circuit and configured to remove the noise in the signal by a second cut-off frequency, wherein the second cut-off frequency is higher than the first cut-off frequency.

    Abstract translation: 再现记录在介质上的信息的信息再现装置包括:非对称校正电路,被配置为校正从介质读取的信号的不对称性。 该装置还包括安装在不对称校正电路之前的第一高通滤波器,并且被配置为通过第一截止频率去除信号中的噪声。 该装置还包括安装在不对称校正电路之后的第二高通滤波器,并且被配置为通过第二截止频率去除信号中的噪声,其中第二截止频率高于第一截止频率。

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