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    • 9. 发明专利
    • Radio communication device, equalizer, equalizer weighting coefficient operation program, and equalizer weighting coefficient operation method
    • 无线电通信设备,均衡器,均衡器加权系统操作程序和均衡器加权系数操作方法
    • JP2009206809A
    • 2009-09-10
    • JP2008046794
    • 2008-02-27
    • Fujitsu Ltd富士通株式会社
    • HASEGAWA TAKESHISHIMIZU MASAHIKOITO AKIRA
    • H04B7/005H04B1/707H04B1/711H04B7/08
    • H04L25/03012H04L25/0242H04L2025/03375H04L2025/03477H04L2025/03605
    • PROBLEM TO BE SOLVED: To reduce an amount of operation, while performing an equalizing process having an excellent equalizing characteristic.
      SOLUTION: An extended correlation matrix generating part 13 generates an extended correlation matrix which contains a correlation matrix indicating a correlation relationship generated by a correlation relationship generating part 11, and is extended so that each row circulates. A channel vector extending part 14 generates an extended channel vector obtained by extending a channel vector generated by a channel vector generating part 12 so that elements of the channel vector are contained in the extended channel vector and a number of rows of the extended correlation matrix coincides with a number of rows of the extended channel vector. A weighting coefficient operating part 15 calculates an extension solution which is a solution obtained by solving the generated extended correlation matrix and the generated extended channel vector in a frequency area, as a weighting coefficient. A composition part 16 generates a demodulating signal by using a receiving signal and the calculated weighting coefficient.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了减少操作量,同时进行具有优异均衡特性的均衡处理。 解决方案:扩展相关矩阵生成部13生成扩展相关矩阵,该相关矩阵包含表示由相关关系生成部11生成的相关关系的相关矩阵,并且被扩展,使得每行循环。 信道向量扩展部分14生成扩展信道向量,该扩展信道向量通过扩展由信道向量生成部分12生成的信道向量而获得,使得信道向量的元素包含在扩展信道向量中,并且扩展相关矩阵的行数与 与多个行的扩展通道向量。 加权系数运算部15计算作为加权系数求解所生成的扩展相关矩阵和频域中生成的扩展信道矢量而得到的解的扩展解。 合成部16通过使用接收信号和计算出的加权系数来生成解调信号。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Clock data recovery device
    • 时钟数据恢复装置
    • JP2009118186A
    • 2009-05-28
    • JP2007289011
    • 2007-11-06
    • Thine Electronics Incザインエレクトロニクス株式会社
    • OZAWA SEIICHI
    • H04L7/033
    • H04L7/033H04L7/0083H04L7/0087H04L25/03012
    • PROBLEM TO BE SOLVED: To provide a clock data recovery device which stably recovers clock signals and data even if there is a large transmitter clock jitter or intersymbol interference. SOLUTION: The clock data recovery device 1 recovers clock signals and data based on inputted digital signals, and has an equalizer 10, a sampler 20, a clock generator 30, an equalizer controller 40 and a phase monitor 50. A clock signal CK or CKX is generated based on input digital signals as a recovered clock signal through loop processing of the sampler 20 and the clock generator 30. In addition, the amount of level adjustment for high frequency components of digital signals in the equalizer 10 is controlled through loop processing of the equalizer 10, the sampler 20 and the equalizer controller 30. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:即使存在大的发射机时钟抖动或符号间干扰,也提供一种稳定地恢复时钟信号和数据的时钟数据恢复装置。 解决方案:时钟数据恢复装置1基于输入的数字信号恢复时钟信号和数据,并具有均衡器10,采样器20,时钟发生器30,均衡器控制器40和相位监控器50.时钟信号 通过采样器20和时钟发生器30的环路处理,基于输入数字信号作为恢复时钟信号生成CK或CKX。此外,均衡器10中的数字信号的高频分量的电平调整量被控制通过 均衡器10,采样器20和均衡器控制器30的循环处理。版权所有(C)2009,JPO&INPIT