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    • 2. 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)。
    • 3. 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。
    • 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
    • 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. 发明授权
    • System for, method of, transmitting data from a transmitter to a receiver and recovering the data at the receiver
    • 从发射机向接收机发送数据的系统,方法,以及在接收机处恢复数据
    • US06990139B2
    • 2006-01-24
    • US10892871
    • 2004-07-16
    • William C. LindseyYoung M. Kim
    • William C. LindseyYoung M. Kim
    • H04B1/707
    • H04L1/0003H04B2201/70701H04B2201/70707H04L1/0026
    • Data at a transmitter is modulated, in accordance with instructions from a receiver, to provide M different modulations in successive sequences. N spreading codes are also provided in successive sequences at the transmitter, in accordance with instructions from the receiver, alternately with the M data modulations. The alternate sequences of the M data modulations and the N spreading codes are paired and individual ones of the M data modulations and the N spreading codes in the paired sequences are combined (e.g. multiplied). Alternatively, an individual one of the M data modulations is combined (e.g. multiplied) with an individual one of the N spreading codes in the adjacent sequence. The modulator and the spreader may be included at the transmitter with (a) a channel encoder which provides channel coding in accordance with instructions from the receiver, (b) a puncturer which removes particular data in accordance with instructions from the receiver and (c) an interleaver. The paired combinations of the individual ones of the M data modulations and the N spreading codes are transmitted to the receiver, which uses correlation or matched filter techniques to recover each combination of the individual one of the data modulations and the individual one of the spreading codes. The recovered data is de-spread in accordance with instructions from the receiver, demodulated in accordance with instructions from the receiver and de-interleaved. The particular data punctured from the sequence is re-inserted and the data is then decoded in accordance with the instructions from the receiver.
    • 根据来自接收机的指令,在发射机处的数据被调制以在连续的序列中提供M个不同的调制。 根据来自接收机的指令,也可以以M个数据调制方式,在发射机处以连续的顺序提供N个扩展码。 M个数据调制和N个扩展码的替代序列被配对,并且将成对序列中的M个数据调制和N个扩展码中的各个组合(例如,乘以)。 或者,将M个数据调制中的单个数据调制与相邻序列中的N个扩展码中的单独的一个进行组合(例如,乘法)。 调制器和扩展器可以包括在发射机处,具有:(a)根据来自接收机的指令提供信道编码的信道编码器,(b)根据来自接收机的指令去除特定数据的穿孔器,以及(c) 交织器。 将M个数据调制和N个扩展码中的各个的成对组合发送到接收机,接收机使用相关或匹配滤波器技术来恢复数据调制中的单独一个和扩展码中的单独一个的每个组合 。 恢复的数据根据​​来自接收机的指令进行解扩,根据来自接收机的指令进行解调并解交织。 重新插入从序列中删除的特定数据,然后根据来自接收器的指令对数据进行解码。
    • 9. 发明授权
    • System for, and method of, transmitting data from a transmitter to a receiver and recovering the data at the receiver
    • 用于从发射机向接收机发送数据的系统和方法,以及在接收机处恢复数据
    • US06952439B1
    • 2005-10-04
    • US09687024
    • 2000-10-13
    • William C. LindseyYoung M. Kim
    • William C. LindseyYoung M. Kim
    • H04B1/707H04J11/00H04L1/00
    • H04L1/0003H04B2201/70701H04B2201/70707H04L1/0026
    • Data at a transmitter is modulated, in accordance with instructions from a receiver, to provide M different modulations in successive sequences. N spreading codes are also provided in successive sequences at the transmitter, in accordance with instructions from the receiver, alternately with the M data modulations. The alternate sequences of the M data modulations and the N spreading codes are paired and individual ones of the M data modulations and the N spreading codes in the paired sequences are combined (e.g. multiplied). The paired combinations of the individual ones of the M data modulations and the N spreading codes are transmitted to the receiver, which uses correlation or matched filter techniques to recover each combination of the individual one of the data modulations and the individual one of the spreading codes. A single spreading code may be used instead of the N spreading codes.
    • 根据来自接收机的指令,在发射机处的数据被调制以在连续的序列中提供M个不同的调制。 根据来自接收机的指令,也可以以M个数据调制方式,在发射机处以连续的顺序提供N个扩展码。 M个数据调制和N个扩展码的替代序列被配对,并且将成对序列中的M个数据调制和N个扩展码中的各个组合(例如,乘以)。 将M个数据调制和N个扩展码中的各个的成对组合发送到接收机,接收机使用相关或匹配滤波器技术来恢复数据调制中的单独一个和扩展码中的单独一个的每个组合 。 可以使用单个扩展码来代替N个扩展码。