Maximum value/minimum value extractor and method
    1.
    发明授权
    Maximum value/minimum value extractor and method 失效
    最大值/最小值提取器和方法

    公开(公告)号:US5867088A

    公开(公告)日:1999-02-02

    申请号:US883170

    申请日:1997-06-26

    CPC classification number: G06F9/30021 G06F7/026

    Abstract: A minimum value/maximum value extractor and method including: a multiplexer for outputting data and inverted data receiving from data lines depending on a maximum/minimum value selecting signal; a plurality of maximum value extracting parts for receiving the output of the multiplexer, a clock signal and a reset signal, the extracting parts outputting a first output which becomes the same signal state as that of the initially input data bits and maintains "0" regardless of subsequent data bits value once the input data bit becomes "0" until the reset signal is applied, and a second output which follows the first output value by delayed by two clock cycles; a maximum value/minimum value signal generator for outputting a value which is a NORed value of all inputs from the extracting parts as a minimum value or a value which is an inverted value of the NORed value of all inputs from the extracting parts as a maximum value; and a plurality of reset signal generators for generating the reset signal for resetting the first output of the extracting parts as an initial value if the two input signals are at the same state,wherein a data string in which the second output of each maximum value extracting part is "1" is the data string having the maximum/minimum values among a plurality of data bit strings and a value output through the maximum/minimum value signal generator becomes the maximum/minimum value.

    Abstract translation: 一种最小值/最大值提取器和方法,包括:多路复用器,用于根据最大/最小值选择信号从数据线输出数据和反相数据; 多个最大值提取部分,用于接收多路复用器的输出,时钟信号和复位信号,提取部分输出与初始输入数据位相同的信号状态的第一输出,并保持“0”不变 一旦输入数据位变为“0”,直到复位信号被施加,并且第二个输出跟随第一个输出值延迟两个时钟周期; 最大值/最小值信号发生器,用于将来自提取部分的所有输入的NOR值作为最小值或作为所有输入的NOR值的反相值的值作为最大值输出 值; 以及多个复位信号发生器,用于在两个输入信号处于相同状态时产生用于将提取部分的第一输出复位为初始值的复位信号,其中,每个最大值提取的第二输出的数据串 部分是“1”是具有多个数据位串中的最大/最小值的数据串,并且通过最大/最小值信号发生器输出的值变为最大/最小值。

    Echo cancellation and echo channel estimation system using multiple antennas
    3.
    发明授权
    Echo cancellation and echo channel estimation system using multiple antennas 有权
    使用多个天线的回波消除和回波信道估计系统

    公开(公告)号:US08184737B2

    公开(公告)日:2012-05-22

    申请号:US12137697

    申请日:2008-06-12

    CPC classification number: H04B7/015 H04B7/04 H04L5/0007 H04L25/0224

    Abstract: Disclosed herein is an echo cancellation and echo channel estimation system that can relay transmit signals without interference with echo signals by canceling the undesired echo signals received by a relay. The echo cancellation and echo channel estimation system is designed to relay signals between a transmitter and a receiver through a relay using multiple antennas. The echo cancellation and echo channel estimation system includes a receive antenna, a preprocessing vector generation module, an echo cancellation module, and a transmit array antenna. The receive antenna receives a transmit signal from the transmitter and an echo signal via an echo channel. The preprocessing vector generation module generates a preprocessing vector and applies the preprocessing vector, the transmit signal and the echo signal, received from the receive antenna, to the echo cancellation module. The echo cancellation module cancels only the echo signal by multiplying the preprocessing vector, the transmit signal, and the echo signal. The transmit array antenna receives a retransmit signal from the echo cancellation module and resends the retransmit signal to the receiver.

    Abstract translation: 本文公开了一种回波消除和回波信道估计系统,其可以通过消除由继电器接收到的不期望的回波信号来中继发射信号而不干扰回波信号。 回波消除和回波信道估计系统被设计成通过使用多个天线的中继站在发射机和接收机之间中继信号。 回波消除和回波信道估计系统包括接收天线,预处理向量生成模块,回波消除模块和发射阵列天线。 接收天线通过回波信道接收来自发射机的发射信号和回波信号。 预处理向量生成模块生成预处理向量,并且将从接收天线接收的预处理向量,发送信号和回波信号应用于回声消除模块。 回波消除模块通过将预处理矢量,发射信号和回波信号相乘来仅消除回波信号。 发射阵列天线从回波消除模块接收重传信号,并将重传信号重发到接收机。

    ICI cancellation method for an OFDM system
    5.
    发明授权
    ICI cancellation method for an OFDM system 有权
    OFDM系统的ICI消除方法

    公开(公告)号:US07433419B2

    公开(公告)日:2008-10-07

    申请号:US10973372

    申请日:2004-10-26

    CPC classification number: H04L27/2647 H04L25/0228

    Abstract: In the ICI cancellation method for OFDM communication system, a receiver performs channel estimation using pilot subcarriers included in transmission signals transmitted from at least one transmitter. The transmitter generates the transmission signal in which pilot subcarriers and data subcarriers are regularly arranged, performs preceding on the transmission signal, modulates the pre-coded transmission signal into an OFDM symbol, and transmits the OFDM symbol. The receiver receives the OFDM symbol; demodulates the OFDM symbol, detects the pilot subcarriers from a demodulated signal, estimates channels using the pilot subcarriers, and restores the transmission signal using the estimated channels.

    Abstract translation: 在OFDM通信系统的ICI取消方法中,接收机使用从至少一个发射机发送的发送信号中包含的导频子载波来执行信道估计。 发射机产生导频子载波和数据子载波规则排列的传输信号,在传输信号之前执行,将预编码的传输信号调制为OFDM符号,并发送OFDM符号。 接收机接收OFDM符号; 解调OFDM符号,从解调信号中检测导频子载波,使用导频子载波估计信道,并使用所估计的信道来恢复发送信号。

    Apparatus and method for performing sequential scheduling in multiple-input multiple-output system
    6.
    发明申请
    Apparatus and method for performing sequential scheduling in multiple-input multiple-output system 有权
    用于在多输入多输出系统中执行顺序调度的装置和方法

    公开(公告)号:US20080117815A1

    公开(公告)日:2008-05-22

    申请号:US11985769

    申请日:2007-11-16

    Abstract: An apparatus and method for performing sequential scheduling in a multiple-input, multiple-output (MIMO) system is provided. The method includes the steps of: selecting a user which reports the greatest partial feedback information among a plurality of pieces of partial feedback information of all users in an initialization operation, and requesting channel feedback information to the selected user; and broadcasting the channel feedback information of the selected user to remaining unselected users upon receiving the channel feedback information from the selected user. Accordingly, a maximum capacity can be obtained by using only selective channel feedback information without having to feed back channel state information of all users.

    Abstract translation: 提供了一种用于在多输入多输出(MIMO)系统中执行顺序调度的装置和方法。 该方法包括以下步骤:在初始化操作中选择在所有用户的多条部分反馈信息中报告最大部分反馈信息的用户,并向所选择的用户请求信道反馈信息; 以及在从所选择的用户接收到信道反馈信息时,将所选择的用户的频道反馈信息广播到剩余的未选择的用户。 因此,通过仅使用选择性信道反馈信息,而不必反馈所有用户的信道状态信息,可以获得最大容量。

    Exposure apparatus for manufacturing semiconductors and method for inspecting pellicles
    9.
    发明申请
    Exposure apparatus for manufacturing semiconductors and method for inspecting pellicles 审中-公开
    制造半导体的曝光装置及检查薄膜的方法

    公开(公告)号:US20070035715A1

    公开(公告)日:2007-02-15

    申请号:US11502400

    申请日:2006-08-11

    CPC classification number: G03F7/70933 G03F7/707 G03F7/70983

    Abstract: Example embodiments of the present invention relate to an apparatus for manufacturing semiconductors and a method of inspecting a pellicle. Other example embodiments of the present invention relate to an exposure apparatus for manufacturing semiconductors. The apparatus may include a reticle, a pellicle and a reticle chuck. The reticle may be mounted on an upper surface of the reticle chuck and the pellicle may be attached to a lower surface of the reticle chuck so that the pellicle may be detached again. There may be an empty space formed between the pellicle and the reticle. The reticle chuck may include holes for supplying or exhausting a purging gas from the empty space. Because a simpler yet more efficient purging system may be installed to the reticle chuck, an effective measure may be provided against contaminations on the pattern surface of the reticle.

    Abstract translation: 本发明的示例性实施例涉及半导体制造装置和检查防护薄膜组件的方法。 本发明的其他示例性实施例涉及用于制造半导体的曝光装置。 该设备可以包括掩模版,防护薄膜和掩模版卡盘。 标线片可以安装在标线盘卡盘的上表面上,并且防护薄膜组件可以附着在光罩卡盘的下表面上,从而可以再次剥离防护薄膜组件。 防护薄膜组件和掩模版之间可能存在空白空间。 标线卡盘可以包括用于从空的空间供给或排出净化气体的孔。 因为可以将更简单而更有效的清洗系统安装到标线盘卡盘上,所以可以提供对掩模版图案表面上的污染物的有效措施。

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