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    • 1. 发明专利
    • Device for monitoring abnormal operation
    • 用于监视异常操作的装置
    • JP2009140247A
    • 2009-06-25
    • JP2007316164
    • 2007-12-06
    • National Institute Of Advanced Industrial & TechnologyUnited Technologies Institute株式会社融合技術研究所独立行政法人産業技術総合研究所
    • ITO KEIICHIIBE TAKAHIDEMIMURA SHUOTSU NOBUYUKIMURAKAWA MASAHIROKOBAYASHI TAKUMI
    • G06T7/20G06T7/00H04N7/18
    • PROBLEM TO BE SOLVED: To provide an abnormal operation monitoring device using a Cubic Higher-order Local Auto-Correlation (CHLAC) technology. SOLUTION: The abnormal operation monitoring device is provided with: a first central arithmetic unit that executes a means for storing moving image frame data input in real time on a memory, a means for generating interframe difference data from the moving image frame data, a means for extracting feature data from the interframe difference data by a Cubic Higher-order Local Auto-Correlation, a means for generating an update matrix by using the feature data, a means for updating an auto-correlation matrix on a shared memory by adding the update matrix, a means for reading a specific vector to be used for abnormality detection from on the shared memory, a means for obtaining an abnormal value from the feature data and the specific vector read from the shared memory, and determining to be abnormal when the abnormal value is not smaller than a threshold, and a means for outputting the determination result when the abnormality determination means determines to be abnormal; and a second central arithmetic unit that executes a means for generating a specific vector from the auto-correlation matrix on the shared memory by main component analysis, and a means for storing the generated specific vector on the shared memory and performing update. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供使用立方高阶局部自动相关(CHLAC)技术的异常操作监视装置。 解决方案:异常运行监视装置设置有:第一中央运算单元,其执行用于将实时输入的运动图像帧数据存储在存储器上的装置,用于从运动图像帧数据生成帧间差异数据的装置 ,用于通过立方高阶局部自相关从帧间差分数据中提取特征数据的装置,用于通过使用特征数据产生更新矩阵的装置,用于通过共享存储器更新共享存储器上的自相关矩阵的装置 添加更新矩阵,用于从共享存储器读取用于异常检测的特定向量的装置,用于从特征数据获得异常值的装置和从共享存储器读取的特定向量,并且确定为异常 当所述异常值不小于阈值时,以及用于当所述异常判定装置判定为异常时输出所述判定结果的单元; 以及第二中央算术单元,其通过主成分分析执行用于通过共享存储器上的自相关矩阵生成特定向量的装置,以及用于将所生成的特定向量存储在共享存储器上并执行更新的装置。 版权所有(C)2009,JPO&INPIT
    • 2. 发明专利
    • Tap weight controller for equalizer
    • 用于均衡器的TAP重量控制器
    • JP2008288653A
    • 2008-11-27
    • JP2007128874
    • 2007-05-15
    • National Institute Of Advanced Industrial & TechnologyTokyo Electric Power Co Inc:The東京電力株式会社独立行政法人産業技術総合研究所
    • SATO YOICHIMURAKAWA MASAHIROHIGUCHI TETSUYAOGAWA OSAMUWATANABE YASUYUKI
    • H04B3/06H04B3/10H04L27/01
    • PROBLEM TO BE SOLVED: To provide a tap weight controller for an equalizer that makes the tap weight of the equalizer converges fast on a value at which an average square error of an equalizer output is minimized with a small operation amount. SOLUTION: A reception signal is inputted to an equalization filter unit 1 and multiplied by the tap weight, and the total of multiplication values of respective stages is sampled by a switch 2 at a transmission symbol speed to obtain an output of the equalizer. At a tap weight control unit 4, a tap weight convergence acceleration filter 5 having inverse amplitude characteristics of a channel inputs the reception signal and outputs it to a shift register 6. The shift register 6 shifts the input output signal of the tap weight convergence acceleration filter 5. A tap weight update unit 7 multiplies the error between the reception signal that an adder 3 outputs and a reference signal by output signals of respective taps of the shift register and a coefficient to update tap weights at tap positions of the equalization filter unit 1 corresponding to respective taps of the shift register 6. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种用于均衡器的抽头重量控制器,其使得均衡器的抽头重量快速收敛于均衡器输出的平均平方误差被最小化的值,同时操作量小。 解决方案:接收信号被输入到均衡滤波器单元1并乘以抽头加权,并且通过开关2以传输符号速度对各级的乘法值的总和进行采样,以获得均衡器的输出 。 在抽头权重控制单元4中,具有通道的反向幅度特性的抽头权重会聚加速度滤波器5输入接收信号并将其输出到移位寄存器6.移位寄存器6使抽头权重收敛加速度的输入输出信号 抽头加权更新单元7将加法器3输出的接收信号与参考信号之间的误差乘以移位寄存器的各个抽头的输出信号和系数,以更新均衡滤波器单元的抽头位置处的抽头权重 1对应于移位寄存器6的各个抽头。

      版权所有:(C)2009,JPO&INPIT

    • 3. 发明专利
    • Modem communication method and modem device
    • MODEM通信方法和调制解调器
    • JP2008271477A
    • 2008-11-06
    • JP2007115354
    • 2007-04-25
    • National Institute Of Advanced Industrial & TechnologyTokyo Electric Power Co Inc:The東京電力株式会社独立行政法人産業技術総合研究所
    • SATO YOICHITAKIGAWA ATSUSHIMURAKAWA MASAHIROHIGUCHI TETSUYAOGAWA OSAMUSHIBATA MICHIO
    • H04L12/28H04B3/54H04J3/00H04J3/16
    • PROBLEM TO BE SOLVED: To provide a modem communication method with an effective data transfer rate equalized when performing fallback control.
      SOLUTION: A plurality of modem devices A, B, C... are connected to a power line transmission channel 1. Two of the modem devices which are paired to perform one-to-one communication using a common channel (frequency range). A transmission control part 5A has a fallback control (transmission rate control) function, a multi-access control function and an effective data transfer rate control function. The modem device A sends a transmission channel evaluation signal instead of transmission data to the modem device B. The modem device B performs transmission channel evaluation, determines an optimum fallback rate, and notifies the modem device A of the determined fallback rate. The modem device A sets a back-off period in CSMA/CA multi-access control to be suitable for the fallback rate (bit rate).
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供在执行回退控制时相等的有效数据传送速率的调制解调器通信方法。 解决方案:多个调制解调器装置A,B,C ...连接到电力线传输信道1.配对以使用公共信道进行一对一通信的两个调制解调设备(频率 范围)。 传输控制部分5A具有回退控制(传输速率控制)功能,多访问控制功能和有效数据传输速率控制功能。 调制解调器装置A将传输信道评估信号代替传输数据发送到调制解调器装置B.调制解调器装置B执行传输信道评估,确定最佳后备速率,并将调制解调器装置A通知确定的后备速率。 调制解调器装置A设置CSMA / CA多路访问控制中的退避时间段以适合于回退速率(比特率)。 版权所有(C)2009,JPO&INPIT
    • 5. 发明专利
    • Method and device for adjusting optical axis of optical transmission path
    • 用于调整光传输路径光轴的方法和装置
    • JP2008096714A
    • 2008-04-24
    • JP2006278753
    • 2006-10-12
    • National Institute Of Advanced Industrial & Technology独立行政法人産業技術総合研究所
    • MURAKAWA MASAHIRONOZATO HIROKAZUMURATA SHINJI
    • G02B7/00G02B6/42G02B7/198
    • PROBLEM TO BE SOLVED: To provide an optical axis adjusting method having high degrees of freedom in adjustment, accurately adjusting an optical axis at a low cost, without requiring a skilled operator even when a noise is superimposed an evaluation on value of light. SOLUTION: The invention includes: an optical axis adjusting mechanism for adjusting the optical axis of the laser light by adjusting the coordinate value of the optical axis; a device for detecting the deviation of the laser light from the target irradiation position; and an adjusting device for searching the optimum value of the optical-axis coordinate based on a signal that estimates the deviation of the laser light, and then, outputting a control signal setting the coordinate value of the optical axis to the optical axis adjusting mechanism. A transition function P(t) is calculated, and it is determined whether a large-area search or a local search is performed based on the transition function P(t) in order to search the optimum value of the optical-axis coordinate, and the next searching point by the large-area search is decided or the next searching point by the local search is decided. When the positional deviation becomes within the prescribed value, the adjusting processing is ended. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种具有高自由度调节的光轴调节方法,以低成本精确地调节光轴,即使在噪声叠加时对光的值进行评估,也不需要熟练的操作者 。 解决方案:本发明包括:光轴调节机构,用于通过调整光轴的坐标值来调节激光的光轴; 用于检测激光与目标照射位置的偏差的装置; 以及调整装置,用于基于估计激光偏差的信号来搜索光轴坐标的最佳值,然后输出将光轴的坐标值设置到光轴调节机构的控制信号。 计算转换函数P(t),并且基于转换函数P(t)来确定是否执行大面积搜索或局部搜索以搜索光轴坐标的最佳值,以及 决定大面积搜索的下一个搜索点,或决定本地搜索的下一个搜索点。 当位置偏差达到规定值时,调整处理结束。 版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • 音声区間検出装置および方法
    • 语音活动检测装置及方法
    • JP2015022112A
    • 2015-02-02
    • JP2013149525
    • 2013-07-18
    • 独立行政法人産業技術総合研究所National Institute Of Advanced Industrial & Technology
    • YUN ZHOU QIKOBAYASHI TAKUMIMURAKAWA MASAHIROHIGUCHI TETSUYA
    • G10L15/04G10L25/78
    • 【課題】実時間処理が可能な程度の軽い計算量の、耐雑音性が高い、音声区間を検出するVAD手法を提供する。【解決手段】アナログデジタル変換された環境雑音と音声からなる所定長の音響信号から所定の窓の長さ分の音響信号を取り出すステップ(S1)と、該取り出した音響信号から音響特徴を抽出するステップ(S2)と、前記抽出した音響特徴から逐次主成分分析を行い音響特徴の固有ベクトルからなる環境雑音モデルを更新するステップ(S3)と、該更新した環境雑音モデルと、該音響信号の音響特徴ベクトルを比較してその偏差量を算出するステップ(S4)と、該偏差量と前記初期化された閾値とを比較して音声区間を判別するステップ(S5)との繰り返しからなる。【選択図】図1
    • 要解决的问题:提供用于通过具有允许实时处理的光计算量来检测具有高抗噪声性的语音部分的VAD技术。解决方案:语音活动检测方法通过重复以下步骤来配置:步骤(S1) 从包括模拟数字转换的环境噪声和声音的具有规定长度的声信号中取出对应于规定窗口的长度的声信号; 从取出的声信号中提取声学特性的步骤(S2); 从所提取的声学特性顺序地执行主成分分析的步骤(S3),以更新包括声学特征的特征向量的环境噪声模型; 比较更新的环境噪声模型和声学信号的声学特征矢量以计算其偏差量的步骤(S4); 以及比较偏差量和初始化阈值以区分语音部分的步骤(S5)。
    • 9. 发明专利
    • Spread spectrum communication system
    • 传播光谱通信系统
    • JP2013126030A
    • 2013-06-24
    • JP2011272636
    • 2011-12-13
    • National Institute Of Advanced Industrial & Technology独立行政法人産業技術総合研究所
    • KASAI YUJIMURAKAWA MASAHIRONOZATO HIROTAKA
    • H04J11/00H04B1/707
    • PROBLEM TO BE SOLVED: To provide an AC power line spread spectrum communication system employing an orthogonal frequency division multiplex system enabling stabilized communication which is less susceptible to the impact of noise in an AC power line, and a direct spread spectrum modulation system capable of identifying the frame configuration on the receiving side without inserting a frame synchronization signal on the transmitting side.SOLUTION: A spread code generator outputs spread codes Scai, Scbi to a spread modulation unit while switching for each frame. The spread modulation unit performs spread modulation of transmission data, which is further modulated by an OFDM modulation unit and transmitted to an AC power line. A spread demodulation unit performs spread demodulation of a signal subjected to OFDM demodulation by an OFDM demodulation unit and received by using reference signals Scai, Scbi generated with the same code phase, before being output to a selection unit. A frame synchronization detection unit identifies the frame configuration on the basis of the switching of corresponding state of the reference signals. The selection unit outputs the received data by selecting the spread demodulation data output from the spread demodulation unit on the corresponding side.
    • 要解决的问题:提供一种采用正交频分多路复用系统的交流电力线扩频通信系统,其使得能够在交流电源线中不易受到噪声影响的稳定通信,以及直接扩频调制系统 能够在接收侧识别帧配置,而不在发送侧插入帧同步信号。 解决方案:扩展代码生成器将扩展码Scai,Scbi输出到扩展调制单元,同时切换每个帧。 扩展调制单元进行由OFDM调制单元进一步调制并发送到AC电力线的发送数据的扩展调制。 扩展解调单元通过OFDM解调单元进行经OFDM解调的信号的扩展解调,并在输出到选择单元之前通过使用以相同码相生成的参考信号Scai,Scbi进行接收。 帧同步检测单元基于参考信号的相应状态的切换来识别帧配置。 选择单元通过选择从相应侧的扩展解调单元输出的扩展解调数据来输出接收的数据。 版权所有(C)2013,JPO&INPIT
    • 10. 发明专利
    • Generation method and system of low-density parity check code
    • 低密度奇偶校验码的生成方法与系统
    • JP2009124493A
    • 2009-06-04
    • JP2007296951
    • 2007-11-15
    • National Institute Of Advanced Industrial & Technology独立行政法人産業技術総合研究所
    • TAKAHASHI EIICHIIIJIMA YOSUKEMURAKAWA MASAHIROHIGUCHI TETSUYA
    • H03M13/19H03M13/35H04L1/00H04L1/24
    • PROBLEM TO BE SOLVED: To provide an alternative procedure using a probabilistic search algorithm and an FPGA emulator to an LDPC code of which the systematic configuration method is unknown.
      SOLUTION: An LDPC encoding/decoding circuit generator 2 generates an LDPC encoding/decoding circuit based on an LDPC code inspection matrix received as a candidate of an optimum solution from a multipurpose optimization device 1, transfers it to a communication path emulator, and calculates an evaluation value by executing evaluation for the generated LDPC encoding/decoding circuit and evaluation for the LDPC code inspection matrix. In addition, the LDPC encoding/decoding circuit generator 2 receives an evaluation result of the LDPC encoding/decoding circuit from the communication path emulator 3, and adds the internally-calculated evaluation value thereto to be output to the multipurpose optimization device 1 as an LDPC code inspection matrix evaluation value. The multipurpose optimization device 1 creates a check matrix defining an optimum LDPC code by using the received LDPC code inspection matrix evaluation value.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供一种使用概率搜索算法和FPGA仿真器到系统配置方法未知的LDPC码的替代程序。 解码方案:LDPC编码/解码电路生成器2基于从多用途优化装置1作为最优解的候补接收的LDPC码检查矩阵生成LDPC编码/解码电路,将其传送到通信路径仿真器, 并且通过对所生成的LDPC编码/解码电路进行评估和LDPC码检查矩阵的评估来计算评估值。 此外,LDPC编码/解码电路生成器2从通信路径仿真器3接收LDPC编码/解码电路的评估结果,并将内部计算出的评价值作为LDPC输出添加到多用途优化装置1 代码检查矩阵评估值。 多用途优化装置1通过使用接收的LDPC码检查矩阵评估值来创建定义最佳LDPC码的校验矩阵。 版权所有(C)2009,JPO&INPIT