Digital television receiver and timing recovering apparatus and method therefor
    1.
    发明授权
    Digital television receiver and timing recovering apparatus and method therefor 有权
    数字电视接收机及其定时恢复装置及方法

    公开(公告)号:US06614490B2

    公开(公告)日:2003-09-02

    申请号:US09758204

    申请日:2001-01-12

    Abstract: A digital television (TV) receiver using a vestigial sideband (VSB) system, and timing recovering apparatus and method for the digital TV receiver are disclosed. The timing error can be compensated for by rapidly and accurately searching the position of the segment sync signal using the Hilbert filter even if the strong 2-symbol-delayed ghost is applied. Also, the tracking performance for the timing error and the zitter performance can be improved by extracting the timing error information even from the signal having passed through the Hilbert filter.

    Abstract translation: 公开了一种使用残留边带(VSB)系统的数字电视(TV)接收机,以及数字电视接收机的定时恢复装置和方法。 即使施加强2符号延迟的重影,也可以使用希尔伯特滤波器快速准确地搜索段同步信号的位置来补偿定时误差。 此外,即使通过希尔伯特滤波器的信号,也可以通过提取定时误差信息来提高定时误差和抖动性能的跟踪性能。

    Apparatus and method for detecting synchronizing signal of digital TV
    2.
    发明授权
    Apparatus and method for detecting synchronizing signal of digital TV 有权
    数字电视同步信号检测装置及方法

    公开(公告)号:US06614487B2

    公开(公告)日:2003-09-02

    申请号:US09758422

    申请日:2001-01-12

    CPC classification number: H04N7/56 H04N5/08 H04N5/4401 H04N5/455 H04N21/4382

    Abstract: An apparatus and method for detecting a synchronizing signal in a digital TV receiver which adopts a VSB mode is disclosed. The apparatus includes a correlation unit for obtaining a correlation value between a received signal for each unit of symbols and a preset reference field synchronizing signal, a maximum value detector for detecting a location of the symbol having a maximum correlation value while performing counting operation for a unit of a variable constant added to the number of symbols corresponding to one field, a synchronizing lock signal generator for generating a synchronizing lock signal by testing reliability of the symbol location detected by the maximum value detector, and a synchronizing location controller for calculating a relative location of the symbol location having a maximum value to generate a corresponding synchronizing signal if the synchronizing lock signal is generated by the synchronizing lock signal generator. A synchronizing pattern is traced per field in even case that channel characteristic is seriously varied. Thus, the synchronizing signals are stably restored at high speed.

    Abstract translation: 公开了一种在采用VSB模式的数字TV接收机中检测同步信号的装置和方法。 该装置包括:相关单元,用于获得每个符号单元的接收信号与预设的参考场同步信号之间的相关值;最大值检测器,用于检测具有最大相关值的符号的位置,同时执行针对 增加到与一个场相对应的符号数的可变常数的单位;同步锁定信号发生器,用于通过测试由最大值检测器检测到的符号位置的可靠性产生同步锁定信号;以及同步位置控制器,用于计算相对 如果同步锁定信号由同步锁定信号发生器产生,则具有最大值的符号位置的位置以产生对应的同步信号。 即使在信道特性严重变化的情况下,每个字段也跟踪同步模式。 因此,同步信号被高速稳定地恢复。

    Method and apparatus for uplink scheduling in a mobile communication system
    4.
    发明授权
    Method and apparatus for uplink scheduling in a mobile communication system 有权
    用于移动通信系统中的上行链路调度的方法和装置

    公开(公告)号:US07929472B2

    公开(公告)日:2011-04-19

    申请号:US11837334

    申请日:2007-08-10

    CPC classification number: H04W52/56 H04W72/1278

    Abstract: A method and an apparatus for improving power efficiency of a User Equipment (UE) by using channel state information between a Node B and the UE and power headroom information of the UE in a mobile communication system. The method includes acquiring power information in relation to transmission powers of UEs; arranging the UEs in a sequence based on the power information; determining, for each UE according to the arranged sequence, whether a first reception power of a Node B exceeds a second reception power; allocating a resource area including partially consecutive sub-carriers to at least one corresponding UE when the first reception power exceeds the second reception power; allocating a resource area including entirely consecutive sub-carriers to at least one corresponding UE when the first reception power does not exceed the second reception power; and transmitting resource allocation information indicating the allocated resource area to the each UE.

    Abstract translation: 通过在移动通信系统中使用节点B与UE之间的信道状态信息和UE的功率余量信息来提高用户设备(UE)的功率效率的方法和装置。 该方法包括获取与UE的发射功率有关的功率信息; 基于功率信息按顺序排列UE; 根据所设置的序列,针对每个UE确定节点B的第一接收功率是否超过第二接收功率; 当所述第一接收功率超过所述第二接收功率时,将包括部分连续的子载波的资源区域分配给至少一个对应的UE; 当所述第一接收功率不超过所述第二接收功率时,向至少一个对应的UE分配包括完全连续的子载波的资源区域; 以及向每个UE发送指示所分配的资源区域的资源分配信息。

    VSB transmission system for processing supplemental transmission data
    10.
    发明授权
    VSB transmission system for processing supplemental transmission data 失效
    VSB传输系统用于处理补充传输数据

    公开(公告)号:US07616688B2

    公开(公告)日:2009-11-10

    申请号:US10792318

    申请日:2004-03-02

    Abstract: A VSB communication system or transmitter for processing supplemental data packets with MPEG-II data-packets includes a VSB supplemental data processor and a VSB transmission system. The VSB supplemental data processor includes a Reed-Solomon coder for coding the supplemental data to be transmitted, a null sequence inserter for inserting a null sequence to an interleaved supplemental data for generating a predefined sequence, a header inserter for inserting an MPEG header to the supplemental data having the null sequence inserted therein, a multiplexer for multiplexing an MPEG data coded with the supplemental data having the MPEG header added thereto in a preset multiplexing ratio and units. The output of the multiplexer is provided to an 8T-VSB transmission system for modulating a data field from the multiplexer and transmitting the modulated data field to a VSB reception system.

    Abstract translation: 用于处理具有MPEG-II数据分组的补充数据分组的VSB通信系统或发射机包括VSB补充数据处理器和VSB传输系统。 VSB补充数据处理器包括用于对要发送的补充数据进行编码的里德 - 所罗门编码器,用于将空序列插入到用于产生预定义序列的交织补充数据的空序列插入器,用于将MPEG头部插入 具有插入其中的空序列的补充数据,多路复用器,用于以预设的复用比率和单位复用以附加的MPEG标题的补充数据编码的MPEG数据。 多路复用器的输出被提供给用于调制来自多路复用器的数据字段的8T-VSB传输系统,并将调制的数据字段发送到VSB接收系统。

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