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    • 4. 发明授权
    • Communication device, noise removing method, and program
    • 通信设备,噪声去除方法和程序
    • US08503510B2
    • 2013-08-06
    • US13552161
    • 2012-07-18
    • Katsuyuki TanakaHideki Takahashi
    • Katsuyuki TanakaHideki Takahashi
    • H04B1/00
    • H04B1/7097G01S19/13G01S19/21H04B1/1036H04B1/707H04B1/7101H04B2201/70715
    • A communication device according to an embodiment of the present invention includes a communication antenna that receives a transmission signal where a spectrum spread signal subjected to a spectrum spread is modulated; an intermediate frequency converting unit that converts the transmission signal received by the communication antenna into an intermediate frequency signal having a predetermined frequency; an analog to digital converting unit that discretizes the intermediate frequency signal and outputs a discretization signal; a noise removing unit that detects a noise other than a normal thermal noise included in the discretization signal and removes the detected noise from the discretization signal; and a demodulating unit that demodulates the spectrum spread signal, based on the discretization signal that is output from the noise removing unit.
    • 根据本发明实施例的通信设备包括:通信天线,其接收经过频谱扩展的频谱扩展信号被调制的发送信号; 中频变换单元,其将由通信天线接收的发送信号转换为具有预定频率的中频信号; 模数转换单元,其离散中频信号并输出​​离散化信号; 噪声去除单元,其检测离散化信号中包括的正常热噪声以外的噪声,并从所述离散化信号中去除检测到的噪声; 以及解调单元,其基于从噪声去除单元输出的离散化信号来解调频谱扩展信号。
    • 5. 发明授权
    • Receiver, signal processing method and program
    • 接收器,信号处理方法和程序
    • US08369386B2
    • 2013-02-05
    • US12816707
    • 2010-06-16
    • Hideki TakahashiKatsuyuki Tanaka
    • Hideki TakahashiKatsuyuki Tanaka
    • H04B1/00
    • G01S19/30H04B1/7075H04B2201/70715
    • A receiver includes a receiving unit that receives a signal from a satellite, a frequency conversion-discretization unit that converts the signal received in the receiving unit into an intermediate frequency signal of a frequency bandwidth including 0 Hz, and discretizes the frequency-converted intermediate frequency signal with a predetermined sampling frequency, a filter unit that filters the discretized signal, which is output from the frequency conversion-discretization unit, through a predetermined filter, a synchronization acquisition unit that acquires synchronization of a spreading code in the discretized signal filtered by the filter unit, and a synchronization holding unit that holds the synchronization of the spreading code, which is acquired by the synchronization acquisition unit.
    • 接收机包括从卫星接收信号的接收单元,将接收单元中接收的信号转换为包括0Hz的频率带宽的中频信号的频率转换离散化单元,并将频率转换后的中频离散化 具有预定采样频率的信号;滤波器单元,其通过预定滤波器对从变频离散化单元输出的离散化信号进行滤波;同步获取单元,其获取由所述滤波器滤波后的离散化信号中的扩展码的同步; 滤波器单元和同步保持单元,其保持由同步获取单元获取的扩展码的同步。
    • 6. 发明授权
    • Large substrate, method of manufacturing liquid crystal device from the same, and liquid crystal device obtained
    • 液晶装置大的基板,制造方法和液晶装置
    • US08054437B2
    • 2011-11-08
    • US12225768
    • 2007-03-19
    • Kazuhiro OkadaKatsuyuki TanakaHiroshi Tsukada
    • Kazuhiro OkadaKatsuyuki TanakaHiroshi Tsukada
    • G02F1/1339
    • G02F1/133351G02F1/1339
    • A plurality of panels (40) are cut from a large substrate (mother substrate) including a lower large substrate (41A) and an upper large substrate (42A). For each panel (40), a frame-shaped seal (47) and a connection electrode forming section (C) are formed in the large substrate. Since the left side (47c) of the frame of a panel (40) is close to the right side (47b) of the frame of the left-adjacent panel, these sides of the seals are formed from a sealing material containing a lower density of spacers. Since the upper side (47a) of the frame of a panel (40) is separated from the lower side (47d) of the frame of the upper adjacent panel (40) by an extension (C′) for the connection electrodes, these seal members are formed from a sealing material containing a higher density of spacers.
    • 从包括下大基板(41A)和上大基板(42A)的大基板(母基板)切割多个面板(40)。 对于每个面板(40),在大基板中形成框状密封件(47)和连接电极形成部分(C)。 由于面板(40)的框架的左侧(47c)靠近左邻接面板的框架的右侧(47b),密封件的这些侧面由密封材料形成,该密封材料包含较低密度 的间隔物。 由于面板(40)的框架的上侧(47a)与上部相邻面板(40)的框架的下侧(47d)分离,所以连接电极的延伸部(C')分开,这些密封 构件由包含较高密度间隔物的密封材料形成。
    • 7. 发明授权
    • Spread spectrum signal demodulating method and apparatus
    • 扩频信号解调方法及装置
    • US07609903B2
    • 2009-10-27
    • US11496141
    • 2006-07-31
    • Katsuyuki Tanaka
    • Katsuyuki Tanaka
    • G06K9/36
    • G06F17/156G01S7/4802G01S19/29G01S19/30H04B1/7075H04B1/70751H04B2201/70715
    • A spread spectrum signal demodulating method whereby spread-code synchronous acquisition and carrier synchronous acquisition are performed using FFT at high speed, wherein a received signal, of which the carrier wave is modulated with a signal obtained by spectrum-spreading data with a spread code, is subjected to the FFT and the result of the FFT is stored in a first memory. The FFT result of the received signal stored in the first memory and the result of FFT of the spread code stored in a second memory are read out and multiplied to detect the correlation between the received signal and the spread code. A readout address of either the FFT result of the received signal or the FFT result of the spread code is shifted by an amount corresponding to a carrier frequency of the received signal.
    • 一种扩展频谱信号解调方法,其特征在于,利用高速FFT进行扩频码同步采集和载波同步采集,其中,利用扩展码通过频谱扩展数据获得的信号调制载波的接收信号, 进行FFT,FFT的结果存储在第一存储器中。 存储在第一存储器中的接收信号的FFT结果和存储在第二存储器中的扩展码的FFT结果被读出并相乘以检测接收信号和扩展码之间的相关性。 接收信号的FFT结果或扩展码的FFT结果的读出地址偏移与接收信号的载波频率对应的量。
    • 9. 发明授权
    • Spread spectrum signal demodulation method and apparatus
    • 扩频信号解调方法及装置
    • US07231095B2
    • 2007-06-12
    • US10362070
    • 2002-06-24
    • Katsuyuki Tanaka
    • Katsuyuki Tanaka
    • G06K9/36G06K9/46
    • G06F17/156G01S7/4802G01S19/29G01S19/30H04B1/7075H04B1/70751H04B2201/70715
    • The present invention relates to a spread spectrum signal demodulating method whereby spread-code synchronous acquisition and carrier synchronous acquisition are performed using FFT at high speed, wherein a received signal, of which the carrier wave is modulated with a signal obtained by spectrum-spreading data with a spread code, is subjected to the FFT and the result of the FFT is stored in a first memory. The FFT result of the received signal stored in the first memory and the result of FFT of the spread code, the result being stored in a second memory, are read out and the results are multiplied to detect the correlation between the received signal and the spread code. During the detection of the correlation, a readout address of either the FFT result of the received signal or the FFT result of the spread code is shifted by an amount corresponding to a carrier frequency of the received signal and the result is read from the first or second memory. The result of the multiplication is subjected to inverse FFT, thus detecting the correlation point between the received signal and the spread code.
    • 扩展频谱信号解调方法技术领域本发明涉及一种扩频信号解调方法,其中利用高速FFT进行扩频码同步采集和载波同步采集,其中载波利用频谱扩展数据获得的信号进行调制的接收信号 利用扩展码进行FFT,并将FFT的结果存储在第一存储器中。 存储在第一存储器中的接收信号的FFT结果和扩展码的FFT结果被读出,结果被存储在第二存储器中,并且将结果相乘以检测接收信号与扩展码之间的相关性 码。 在相关检测期间,接收信号的FFT结果或扩展码的FFT结果的读出地址偏移与接收信号的载波频率对应的量,并从第一或 第二个记忆 对乘法的结果进行逆FFT,从而检测接收信号和扩展码之间的相关点。