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    • 4. 发明授权
    • Equalizers for layered modulated and other signals
    • 均衡器用于分层调制和其他信号
    • US07583728B2
    • 2009-09-01
    • US11656662
    • 2007-01-22
    • Ernest C. ChenTung-Sheng LinWeizheng WangWilliam C. Lindsey
    • Ernest C. ChenTung-Sheng LinWeizheng WangWilliam C. Lindsey
    • H03H7/30
    • H04L27/3488H04L25/03019H04L2025/03401H04L2025/0342H04L2025/0349
    • A method and apparatus for equalizing digital data signals is disclosed. The method comprises the steps of demodulating and decoding an input signal having input data to produce a data output, remodulating the data output to produce a training sequence including an idealized input signal, wherein the training sequence is comprised of adjacent symbols in the input data, and generating equalizer parameters from the training sequence. The apparatus comprises a demodulator (for demodulating an input signal to produce a data output), a modulator communicatively coupled to the demodulator (for remodulating the data output to produce a training sequence including an idealized input signal wherein the training sequence is comprised of adjacent symbols in the input data), and a parameter generation module communicatively coupled to the modulator (for generating equalizer parameters from the training sequence).
    • 公开了一种均衡数字数据信号的方法和装置。 该方法包括以下步骤:解调和解码具有输入数据的输入信号以产生数据输出,重新调制数据输出以产生包括理想化输入信号的训练序列,其中训练序列由输入数据中的相邻符号组成, 并从训练序列生成均衡器参数。 该装置包括解调器(用于解调输入信号以产生数据输出),通信地耦合到解调器的调制器(用于重新调制数据输出以产生包括理想化输入信号的训练序列,其中训练序列由相邻符号组成 在输入数据中)以及通信地耦合到调制器的参数生成模块(用于从训练序列生成均衡器参数)。
    • 5. 发明授权
    • Equalizers for layered modulated and other signals
    • 均衡器用于分层调制和其他信号
    • US08208526B2
    • 2012-06-26
    • US12404253
    • 2009-03-13
    • Ernest C. ChenTung-Sheng LinWeizheng WangWilliam C. Lindsey
    • Ernest C. ChenTung-Sheng LinWeizheng WangWilliam C. Lindsey
    • H03H7/30
    • H04L27/3488H04L25/03019H04L2025/03401H04L2025/0342H04L2025/0349
    • A method and apparatus for equalizing digital data signals is disclosed. The method comprises the steps of demodulating and decoding an input signal having input data to produce a data output, remodulating the data output to produce a training sequence including an idealized input signal, wherein the training sequence is comprised of adjacent symbols in the input data, and generating equalizer parameters from the training sequence. The apparatus comprises a demodulator (for demodulating an input signal to produce a data output), a modulator communicatively coupled to the demodulator (for remodulating the data output to produce a training sequence including an idealized input signal wherein the training sequence is comprised of adjacent symbols in the input data), and a parameter generation module communicatively coupled to the modulator (for generating equalizer parameters from the training sequence).
    • 公开了一种用于均衡数字数据信号的方法和装置。 该方法包括以下步骤:解调和解码具有输入数据的输入信号以产生数据输出,重新调制数据输出以产生包括理想化输入信号的训练序列,其中训练序列由输入数据中的相邻符号组成, 并从训练序列生成均衡器参数。 该装置包括解调器(用于解调输入信号以产生数据输出),通信地耦合到解调器的调制器(用于重新调制数据输出以产生包括理想化输入信号的训练序列,其中训练序列由相邻符号组成 在输入数据中)以及通信地耦合到调制器的参数生成模块(用于从训练序列生成均衡器参数)。
    • 6. 发明申请
    • EQUALIZERS FOR LAYERED MODULATED AND OTHER SIGNALS
    • 用于层状调制和其他信号的均衡器
    • US20090175327A1
    • 2009-07-09
    • US12404253
    • 2009-03-13
    • Ernest C. ChenTung-sheng LinWeizheng WangWilliam C. Lindsey
    • Ernest C. ChenTung-sheng LinWeizheng WangWilliam C. Lindsey
    • H04L27/01
    • H04L27/3488H04L25/03019H04L2025/03401H04L2025/0342H04L2025/0349
    • A method and apparatus for equalizing digital data signals is disclosed. The method comprises the steps of demodulating and decoding an input signal having input data to produce a data output, remodulating the data output to produce a training sequence including an idealized input signal, wherein the training sequence is comprised of adjacent symbols in the input data, and generating equalizer parameters from the training sequence. The apparatus comprises a demodulator (for demodulating an input signal to produce a data output), a modulator communicatively coupled to the demodulator (for remodulating the data output to produce a training sequence including an idealized input signal wherein the training sequence is comprised of adjacent symbols in the input data), and a parameter generation module communicatively coupled to the modulator (for generating equalizer parameters from the training sequence).
    • 公开了一种用于均衡数字数据信号的方法和装置。 该方法包括以下步骤:解调和解码具有输入数据的输入信号以产生数据输出,重新调制数据输出以产生包括理想化输入信号的训练序列,其中训练序列由输入数据中的相邻符号组成, 并从训练序列生成均衡器参数。 该装置包括解调器(用于解调输入信号以产生数据输出),通信地耦合到解调器的调制器(用于重新调制数据输出以产生包括理想化输入信号的训练序列,其中训练序列由相邻符号组成 在输入数据中)以及通信地耦合到调制器的参数生成模块(用于从训练序列生成均衡器参数)。
    • 8. 发明授权
    • Unblind equalizer architecture for digital communication systems
    • 用于数字通信系统的无盲均衡器架构
    • US07483505B2
    • 2009-01-27
    • US10691032
    • 2003-10-22
    • Weizheng W. WangTung-Sheng LinErnest C. ChenWilliam C. Lindsey
    • Weizheng W. WangTung-Sheng LinErnest C. ChenWilliam C. Lindsey
    • H04B1/10
    • H04B7/18515
    • A method and apparatus for equalizing digital data signals is disclosed. The method comprises the steps of demodulating and decoding an input signal having input data to produce a data output, remodulating the data output to produce a pseudo-training sequence including an idealized input signal, and generating equalizer parameters from the pseudo-training sequence. The apparatus comprises a demodulator for demodulating an input signal to produce a data output, a modulator, communicatively coupled to the demodulator, for remodulating the data output to produce a pseudo-training sequence including an idealized input signal, and a parameter generation module, communicatively coupled to the modulator for generating equalizer parameters from the pseudo-training sequence.
    • 公开了一种用于均衡数字数据信号的方法和装置。 该方法包括以下步骤:解调和解码具有输入数据的输入信号以产生数据输出,重新调制数据输出以产生包括理想化输入信号的伪训练序列,以及从伪训练序列生成均衡器参数。 该装置包括用于解调输入信号以产生数据输出的解调器,通信地耦合到解调器的调制器,用于重新调制数据输出以产生包括理想化输入信号的伪训练序列和参数生成模块,通信地 耦合到用于从伪训练序列产生均衡器参数的调制器。
    • 10. 发明授权
    • Well packer apparatus
    • 包装机
    • US4018272A
    • 1977-04-19
    • US565385
    • 1975-04-07
    • Joe R. BrownWilliam C. LindseyPhillip H. Manderscheid
    • Joe R. BrownWilliam C. LindseyPhillip H. Manderscheid
    • E21B33/122E21B33/1295E21B33/12
    • E21B33/122E21B33/1295
    • Disclosed is a retrievable, hydraulically set well packer which is locked in set position without need for tubing rotation and may be released from set position by shearing a retrieving link with either a straight pull on the production tubing or by the application of high pressure through the tubing. Dual, opposed cones are employed for retaining the packer slips anchored irrespective of the direction of the pressure differential acting on the packer and without need for an extra sleeve to transmit pressure induced forces to the cones. Compression seals are employed to hold the slips firmly anchored against longitudinal displacement in both directions without reliance on the presence of a pressure differential across the set packer. The seals are employed as two separate assemblies which are positioned above and below the slips to isolate a portion of the pressure induced forces from the retrieving link. A modified form of the invention employs the dual cone, dual seal design on a packer having multiple flow passages.
    • 公开了一种可回收的液压设置的打井机,其被锁定在设定位置而不需要管道旋转,并且可以通过在生产管线上直线拉动或通过施加高压通过生产管线剪切回收链节而从设定位置释放 管道。 采用双重对立的锥体来保持封闭器滑动件,而不管作用在封隔器上的压力差的方向如何,并且不需要额外的套筒将压力引起的力传递到锥体。 使用压缩密封件来保持滑块在两个方向上牢固地锚定在纵向位移上,而不依赖于在整个封隔器上存在压力差。 密封件被用作两个单独的组件,其被定位在滑动件的上方和下方,以隔离压力诱导力与检索链节的一部分。 本发明的改进形式在具有多个流动通道的封隔器上采用双锥体双重密封设计。