公开(公告)号：US5291515A

公开(公告)日：1994-03-01

申请号：US713462

申请日：1991-06-11

申请人： Yoshitaka Uchida ,  Mamoru Endo ,  Masahiro Hamatsu ,  Shigeo Akazawa

发明人： Yoshitaka Uchida ,  Mamoru Endo ,  Masahiro Hamatsu ,  Shigeo Akazawa

IPC分类号： H04B1/69 ,  H04B1/709 ,  H04J13/00 ,  H04L7/04 ,  H04L27/30

CPC分类号： H04L7/043 ,  H04B1/69 ,  H04B1/709 ,  H04J13/0074

摘要： 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.

摘要翻译： 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。

公开(公告)号：US5228055A

公开(公告)日：1993-07-13

申请号：US829469

申请日：1992-01-31

申请人： Yoshitaka Uchida ,  Mamoru Endo ,  Masahiro Hamatsu ,  Shigeo Akazawa

发明人： Yoshitaka Uchida ,  Mamoru Endo ,  Masahiro Hamatsu ,  Shigeo Akazawa

IPC分类号： H04J13/00

CPC分类号： H04J13/00 ,  H04J13/0074

摘要： 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.

摘要翻译： 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。

公开(公告)号：US5574754A

公开(公告)日：1996-11-12

申请号：US556439

申请日：1995-11-09

申请人： Takao Kurihara ,  Yoshitaka Uchida ,  Masahiro Hamatsu

发明人： Takao Kurihara ,  Yoshitaka Uchida ,  Masahiro Hamatsu

IPC分类号： H04J13/00 ,  H04B1/7095 ,  H04L7/04 ,  H04L7/00

CPC分类号： H04B1/7075 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/7095 ,  H04L7/043

摘要： A sliding correlator for initial synchronization and tracking of a SS (Spread Spectrum)-modulated signal containing a transmitted pseudo noise (PN) code, digitizes the received signal, and attempts to correlate the PN code in the received signal with a locally generated reference PN code. Initial synchronization employs correlation with three reference PN codes, an early, center and late channel. When correlation is found between the transmitted PN code and one of the reference PN codes, the three reference PN codes are shifted to align the center channel with the correlated channel and to displace the early and late channel reference PN codes to one side and the other of the center channel. In one embodiment, the displacement is one-third chip, and in another embodiment, the displacement is one-half chip. In one embodiment for initial tracking, the three channels are displaced one chip from each other and, after failure to attain correlation in any of the channels, the three channels are displaced three chips to again seek synchronization. Initial Tracking, following initial synchronization, detects changes in correlation in the three channels, and adjust the frequency and/or the phase of the three reference PN codes to return the reference PN codes into a desired relationship with the transmitted PN code. In one embodiment of tracking, clockwise and counterclockwise cyclic permutation of the three reference PN codes is used to maintain alignment between the three reference PN codes and the transmitted PN code. In other embodiments, the condition of correlation, or lack thereof, in each channel is stored in a register and shifting of the reference PN codes is performed in response to the status of the register.

摘要翻译： 用于初始同步和跟踪包含发射伪噪声（PN）码的SS（扩频））调制信号的滑动相关器对接收到的信号进行数字化，并尝试将接收信号中的PN码与本地生成的参考PN 码。 初始同步采用与三个参考PN码（早期，中心和晚期信道）的相关性。 当在所发送的PN码和参考PN码之一中发现相关时，三个参考PN码被移位以使中心信道与相关信道对准，并将早期和晚期信道参考PN码移位到一侧，而另一个 的中心渠道。 在一个实施例中，位移是三分之一芯片，在另一个实施例中，位移是二分之一芯片。 在初始跟踪的一个实施例中，三个信道彼此一个位移，并且在不能在任何信道中获得相关性之后，三个信道被移位三个码片以再次寻找同步。 初始跟踪在初始同步之后，检​​测三个通道中相关性的变化，并调整三个参考PN代码的频率和/或相位，以将参考PN代码返回到与发送的PN码的期望关系。 在跟踪的一个实施例中，使用三个参考PN码的顺时针和逆时针循环置换来保持三个参考PN码和所发送的PN码之间的对准。 在其他实施例中，每个信道中的相关条件或不存在的条件存储在寄存器中，并且响应于寄存器的状态执行参考PN码的移位。

公开(公告)号：US4965759A

公开(公告)日：1990-10-23

申请号：US294773

申请日：1989-01-06

申请人： Yoshitaka Uchida ,  Masahiro Hamatsu ,  Masaharu Mori

发明人： Yoshitaka Uchida ,  Masahiro Hamatsu ,  Masaharu Mori

IPC分类号： H04B1/707

CPC分类号： H04B1/707

摘要： A correlation pulse generator used in a receiver of a spread spectrum communication system comprises peak hold circuit for holding peak values of positive and negative correlation spikes, threshold setting circuits for generating thresholds based on the peak values, and a comparing circuit for comparing the threshold with a correlation spike to generate a correlation pulse, so that when a level difference exists between positive and negative correlation spike levels of a correlation output, their peaks can be held independently, and thresholds based on the peaks can be generated independently.

摘要翻译： 在扩频通信系统的接收机中使用的相关脉冲发生器包括用于保持正和负相关峰值的峰值的峰值保持电路，基于峰值产生阈值的阈值设置电路，以及用于将阈值与 产生相关脉冲的相关峰值，使得当相关输出的正相关峰值和负相关峰值电平之间存在电平差时，它们的峰值可以被独立地保持，并且可以独立地生成基于峰值的阈值。

公开(公告)号：US5144641A

公开(公告)日：1992-09-01

申请号：US654077

申请日：1991-02-11

申请人： Shigeo Akazawa ,  Yoshitaka Uchida

发明人： Shigeo Akazawa ,  Yoshitaka Uchida

IPC分类号： H04J13/00 ,  H04B1/709

CPC分类号： H04J13/10 ,  H04B1/707 ,  H04B1/709 ,  H04J13/0022

摘要： A multiplex communication device by the spread spectrum communication system is disclosed, in which a reference signal and a plurality of information signals are multiplexed to be transmitted after having spreading-modulated each of them, and data demodulation for the plurality of information signals is effected on the basis of a correlation-demodulated reference signal by executing correlation operation of this multiplexed received signal with a reference signal by means of a single correlator.

摘要翻译： 公开了一种扩频通信系统的多路复用通信装置，其中参考信号和多个信息信号被多路复用以在对其进行了扩展调制之后被发送，并且对多个信息信号进行数据解调是对 通过利用单个相关器执行该多路复用的接收信号与参考信号的相关操作来进行相关解调参考信号的基础。

公开(公告)号：US5204877A

公开(公告)日：1993-04-20

申请号：US829731

申请日：1992-01-31

申请人： Mamoru Endo ,  Yoshitaka Uchida

发明人： Mamoru Endo ,  Yoshitaka Uchida

IPC分类号： H04J13/00 ,  H04J13/10 ,  H04L5/02

CPC分类号： H04L5/02 ,  H04B1/707 ,  H04J13/0074

摘要： In a spread spectrum modulating device according to the present invention transmission data are converted into parallel data by a serial-parallel converting circuit, which are held by a latch circuit and assign upper digit addresses.Lower digit addresses in the memory are assigned by a counter.Parallel data outputted by the memory are converted into analogue signals by a D/A converter, which analogue signals are multiplied by a carrier by a multiplier to obtain a spread spectrum signal.Owing to the construction described above, a simple and small scale construction can be realized for the spread spectrum modulating device.

摘要翻译： 在根据本发明的扩频调制装置中，发送数据由串并联转换电路转换成并行数据，并由锁存电路保持并分配高位数地址。 存储器中的低位地址由计数器分配。 由存储器输出的并行数据由D / A转换器转换为模拟信号，模拟信号由乘法器乘以载波以获得扩频信号。 由于上述结构，可以对扩频调制装置实现简单小规模的结构。

公开(公告)号：US5148413A

公开(公告)日：1992-09-15

申请号：US836988

申请日：1992-02-14

申请人： Mamoru Endo ,  Yoshitaka Uchida

发明人： Mamoru Endo ,  Yoshitaka Uchida

IPC分类号： H03H9/64 ,  H04B1/10 ,  H04B1/71 ,  H04J13/00

CPC分类号： H04B1/1036 ,  H04B1/7101

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20110228985A1

公开(公告)日：2011-09-22

申请号：US13129869

申请日：2009-11-19

申请人： Yoshitaka Uchida ,  Toshiyuki Aoki

发明人： Yoshitaka Uchida ,  Toshiyuki Aoki

IPC分类号： G06K9/00

CPC分类号： G06T7/215 ,  G06T2207/10016 ,  G06T2207/20068 ,  G06T2207/20132 ,  G06T2207/30261

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20060209855A1

公开(公告)日：2006-09-21

申请号：US11349230

申请日：2006-02-08

申请人： Yoshitaka Uchida ,  Norihiro Ishikawa

发明人： Yoshitaka Uchida ,  Norihiro Ishikawa

IPC分类号： H04L12/56

CPC分类号： H04L29/12066 ,  H04L61/1511

摘要： 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.

摘要翻译： 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。

公开(公告)号：US06035111A

公开(公告)日：2000-03-07

申请号：US748534

申请日：1996-11-13

申请人： Rieko Suzuki ,  Kiyoshi Saida ,  Kazushige Itazu ,  Eiji Fujine ,  Yoshihiro Kamiya ,  Yoshitaka Uchida ,  Takako Murakami ,  Teruhisa Tsuyuki ,  Kazunori Kawazoe ,  Takeshi Shimazaki ,  Yukimi Nishiwaki

发明人： Rieko Suzuki ,  Kiyoshi Saida ,  Kazushige Itazu ,  Eiji Fujine ,  Yoshihiro Kamiya ,  Yoshitaka Uchida ,  Takako Murakami ,  Teruhisa Tsuyuki ,  Kazunori Kawazoe ,  Takeshi Shimazaki ,  Yukimi Nishiwaki

IPC分类号： G06F17/50 ,  H01L27/118

CPC分类号： H01L27/118 ,  G06F17/5068

摘要： According to the present invention, using a computer aided design system for designing semiconductor integrated circuits wherein a plurality of logic cells forming a circuit net are disposed on a semiconductor chip according to a net list specifying a connection pattern assigned among input and output terminals of a plurality of logic cells and a wiring length connecting the terminals.

摘要翻译： 根据本发明，使用用于设计半导体集成电路的计算机辅助设计系统，其中，形成电路网的多个逻辑单元根据指定在 多个逻辑单元和连接端子的布线长度。