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    • 2. 发明授权
    • Spread spectrum communication device
    • 扩频通信设备
    • US5291515A
    • 1994-03-01
    • US713462
    • 1991-06-11
    • Yoshitaka UchidaMamoru EndoMasahiro HamatsuShigeo Akazawa
    • Yoshitaka UchidaMamoru EndoMasahiro HamatsuShigeo Akazawa
    • H04B1/69H04B1/709H04J13/00H04L7/04H04L27/30
    • H04L7/043H04B1/69H04B1/709H04J13/0074
    • On the transmitter side, data to be transmitted are converted into a plurality of parallel data sets by a serial-parallel converter 101 and spread spectrum modulation is effected by means of PN code generators 105 and selectors 102. Each of the modulated outputs is delayed by a delaying circuit 103 with reference to a sounder channel and the phase thereof. The output thus delayed and the output of the sounder channel are added by an adder 104 to be multiplexed and transmitted.On the receiver side, correlation between a received signal and a reference signal is formed by a correlator 201 to obtain a correlation pulse from the correlation output thus obtained. Data demodulation is effected by means of a sounder detecting circuit 209, a sampling pulse generating circuit 210 and an information detecting circuit 211, starting from this correlation pulse.According to the structure described above, in SS communication, data demodulation can be effected with a high efficiency by using a single correlator.
    • 在发射机侧,由串并行转换器101将要发送的数据转换成多个并行数据集,并通过PN码发生器105和选择器102进行扩频调制。每个调制输出被延迟 参考发声器通道的延迟电路103及其相位。 输出如此延迟,并且发声器通道的输出由加法器104相加以进行复用和发送。 在接收机侧,由相关器201形成接收信号与参考信号之间的相关,以从这样获得的相关输出中获得相关脉冲。 通过发声器检测电路209,采样脉冲发生电路210和信息检测电路211,从该相关脉冲开始进行数据解调。 根据上述结构,在SS通信中,可以通过使用单个相关器以高效率进行数据解调。
    • 3. 发明授权
    • Spread spectrum communication device
    • 传播光谱通信设备
    • US5228055A
    • 1993-07-13
    • US829469
    • 1992-01-31
    • Yoshitaka UchidaMamoru EndoMasahiro HamatsuShigeo Akazawa
    • Yoshitaka UchidaMamoru EndoMasahiro HamatsuShigeo Akazawa
    • H04J13/00
    • H04J13/00H04J13/0074
    • On the transmitter side of a spread spectrum communication device according to the present invention, transmission date are converted into a plurality of parallel data sets by a serial-parallel convertor and spread-spectrum-modulation is effected by means of PN code generators and selectors. Different modulated outputs are delayed by delay devices, using a sounder channel and the phase thereof as a reference. The delayed outputs and the output of the sounder channel are added by an adder, multiplexed and transmitted.On the receiver side correlation of a received signal with a reference signal is formed by a correlator and a correlation pulse is obtained from the correlation output. Data are reproduced by means of a sounder detecting circuit, a sampling pulse generating circuit and an information detecting circuit.In this way data reproduction can be effected with a high efficiency by means of a single correlator.
    • 在根据本发明的扩展频谱通信设备的发射机侧,通过串行 - 并行转换器将传输日期转换成多个并行数据集,并且通过PN码发生器和选择器实现扩频调制。 不同的调制输出由延迟器延迟,使用发声器通道及其相位作为参考。 延迟输出和发声器通道的输出由加法器相加,进行多路传输。 在接收机侧,通过相关器形成接收信号与参考信号的相关性,并从相关输出获得相关脉冲。 数据通过发声器检测电路,采样脉冲发生电路和信息检测电路再现。 以这种方式,可以通过单个相关器以高效率实现数据再现。
    • 4. 发明授权
    • Narrow band disturbing wave detecting device
    • 窄带干扰波检测装置
    • US5148413A
    • 1992-09-15
    • US836988
    • 1992-02-14
    • Mamoru EndoYoshitaka Uchida
    • Mamoru EndoYoshitaka Uchida
    • H03H9/64H04B1/10H04B1/71H04J13/00
    • H04B1/1036H04B1/7101
    • A device according to the present invention comprises a variable notch filter, a PN code generator, a VCO and a convolver. The frequency is swept within the band of the convolver by the VCO after having stopped operations of the variable notch filter and the PN code generator and the output of the convolver at this time is detected. When the output thus detected exceeds a threshold, a detected signal is sent to the variable notch filter to control the notch part thereof so as to correspond to disturbing wave to remove the disturbing wave from a received signal. Since the convolver is used not only for a correlator but also for a disturbing wave detector, the construction can be simple and cheap.
    • 根据本发明的装置包括可变陷波滤波器,PN码发生器,VCO和卷积器。 在可变陷波滤波器和PN码发生器停止操作之后,频率在VCO的频带内被扫描,并且此时检测到卷积器的输出。 当检测到的输出超过阈值时,将检测信号发送到可变陷波滤波器,以控制其陷波部分,以对应于干扰波,以从接收信号中去除干扰波。 由于卷积器不仅用于相关器,而且用于干扰波检测器,结构可以简单且便宜。
    • 5. 发明申请
    • APPROACHING OBJECT DETECTION SYSTEM
    • 接近目标检测系统
    • US20110228985A1
    • 2011-09-22
    • US13129869
    • 2009-11-19
    • Yoshitaka UchidaToshiyuki Aoki
    • Yoshitaka UchidaToshiyuki Aoki
    • G06K9/00
    • G06T7/215G06T2207/10016G06T2207/20068G06T2207/20132G06T2207/30261
    • An approaching object detection system, approaching object can be accurately detected while reducing the load on a calculation processing. A first moving region detection unit (30) detects (#3) only an optical flow substantially in horizontal direction in an image (P) captured by a camera (10) (#1) and sets (#4) a rectangular image portion (Q) containing a region moving in a substantially horizontal direction according to the detected optical flow. A second moving region detection unit (40) obtains a distribution (profile) of signal values of the set rectangular image portion (Q), (#5) in a vertical direction (longitudinal direction). Furthermore, the second moving region detection unit (40) correlates distributions of signal values of image portions (Q, Q) of two continuous images (P, P) in time series (#6) based on dynamic programming based processing to obtain an enlargement rate (#7). An approaching object determining unit (50) determines according to the enlargement rate whether the object is actually approaching.
    • 可以在减少计算处理的负荷的同时,准确地检测到接近物体检测系统。 第一移动区域检测单元(30)仅检测由照相机(10)拍摄的图像(P)中基本上水平方向的光流(#1)(#1),并且将(#4)矩形图像部分 Q)包含根据检测到的光流在大致水平方向移动的区域。 第二移动区域检测单元(40)获得垂直方向(纵向)上的设定矩形图像部分(Q),(#5)的信号值的分布(分布)。 此外,第二移动区域检测单元(40)基于基于动态规划的处理将时间序列(#6)中的两个连续图像(P,P)的图像部分(Q,Q)的信号值的分布相关联,以获得放大 率(#7)。 接近对象确定单元(50)根据放大率确定对象是否实际接近。
    • 6. 发明申请
    • Relay unit, terminal device, communication system, and communication control method
    • 中继单元,终端设备,通信系统和通信控制方法
    • US20060209855A1
    • 2006-09-21
    • US11349230
    • 2006-02-08
    • Yoshitaka UchidaNorihiro Ishikawa
    • Yoshitaka UchidaNorihiro Ishikawa
    • H04L12/56
    • H04L29/12066H04L61/1511
    • A relay unit capable of inquiring of a DNS comprises: an inquiry section which transfers an acquisition request of a transmission destination terminal address, sent from a transmission source terminal, to the DNS, and acquires the transmission destination terminal address and a transmission destination label corresponding to the transmission destination terminal address and transmission destination terminal; a label creation section which creates a unique relay label; a label storage section which correlates the created relay label to the acquired transmission destination terminal address and transmission destination label, and stores thus obtained label; a label transmission section which transmits the relay label and a private address of the relay unit to the transmission source terminal; and a determination section which, if a packet containing the relay label is received from the transmission source terminal, determines that the transmission destination terminal address and transmission destination label corresponding to the relay label are an address and a label related to a transmission destination or a relay destination of the packet.
    • 能够查询DNS的中继单元包括:将从发送源终端发送的发送目的地终端地址的获取请求传送给DNS的查询部,并且获取发送目的地终端地址和发送目的地标签对应 到发送目的地终端地址和发送目的地终端; 标签创建部分,其创建唯一的中继标签; 将所生成的中继标签与所获取的发送目的地终端地址和发送目的地标签相关联的标签存储部,并存储由此获得的标签; 标签发送部,其将所述中继标识和所述中继单元的专用地址发送到所述发送源终端; 以及确定部,如果从所述发送源终端接收到包含所述中继标签的分组,则确定与所述中继标签相对应的发送目的地终端地址和发送目的地标签是与发送目的地相关的地址和标签, 分组的中继目的地。