公开(公告)号：US06400752B1

公开(公告)日：2002-06-04

申请号：US09181925

申请日：1998-10-29

申请人： Masamitsu Suzuki ,  Harumi Kokaji ,  Satoshi Takahashi ,  Yoshikatsu Nakagawa

发明人： Masamitsu Suzuki ,  Harumi Kokaji ,  Satoshi Takahashi ,  Yoshikatsu Nakagawa

IPC分类号： H04B169

CPC分类号： H04W16/14 ,  H04B1/7103 ,  H04B2201/709709 ,  H04J13/16 ,  H04W72/0466

摘要： A wireless network communication system and method in which the wireless channel can be determined by selecting a vacant pseudonoise (PN) or spreading code. When communication is started, in order to judge whether a PN code is being employed by another communication group, the degree of correlation between the received signal converted to an intermediate frequency or a base-band frequency by a transceiver and a reference pseudonoise code signal is detected using a correlation circuit within a correlation detector. There is a channel controller which controls the PN code used by the communication terminal which receives an output of the correlation detector which correlates a received channel signal with a reference PN code generated by the PN code generator. If the correlation output signal is not smaller than a threshold value, it is determined that the PN code is to be employed. Furthermore, at the time of transmission, the pseudonoise code generator is controlled so as to supply the selected PN code to a transceiver. The transceiver combines the data to be transmitted with the PN code to be used in order to determine the final signal which is to be transmitted by the terminal.

摘要翻译： 一种无线网络通信系统和方法，其中可以通过选择空闲伪噪声（PN）或扩展码来确定无线信道。 当通信开始时，为了判断另一个通信组是否正在使用PN码，由收发机转换成中频或基带频率的接收信号与参考伪噪声码信号之间的相关度是 使用相关检测器内的相关电路检测。 控制由通信终端使用的PN码的通道控制器，其接收相关检测器的输出，该接收信号与接收到的信道信号与由PN码发生器产生的参考PN码相关。 如果相关输出信号不小于阈值，则确定要使用PN码。 此外，在发送时，控制伪噪声码发生器，以将所选择的PN码提供给收发信机。 收发器将要发送的数据与要使用的PN码组合，以便确定由终端发送的最终信号。

公开(公告)号：US5128957A

公开(公告)日：1992-07-07

申请号：US741675

申请日：1991-08-07

申请人： Yoshikatsu Nakagawa

发明人： Yoshikatsu Nakagawa

IPC分类号： H04B1/7075

CPC分类号： H04B1/7075 ,  H04B2201/70701

摘要： A spread spectrum system includes a transmitter in which a frequency of a pseudonoise sequence signal is modulated in accordance with information, and a receiver in which a received pseudonoise sequence signal is demodulated based on a synchronization between the received pseudonoise sequence siganl and a reference pseudonoise sequence signal having the same basic frequency as the received pseudonoise sequence signal. An initial acquisition method used in the spread spectrum system includes the following steps (a) and (b) of:(a) transmitting a training signal from the transmitter, the training signal being obtained by changing the frequency of the transmitted pseudonoise sequence signal from the basic frequency before the frequency of the transmitted pseudonoise sequence signal is modulated; and (b) carrying out a sliding correlation in the receiver based on a difference between a frequency of the training signal and the basic frequency of the reference pseudonoise sequence signal, so that an initial acquisition is achieved by the sliding correlation.

摘要翻译： 扩频系统包括根据信息调制伪噪声序列信号的频率的发射机，以及基于所接收的伪噪声序列sigan1和参考伪噪声序列之间的同步来解调所接收的伪噪声序列信号的接收机 信号具有与接收的伪噪声序列信号相同的基本频率。 在扩展频谱系统中使用的初始采集方法包括以下步骤（a）和（b）：（a）从发射机发送训练信号，训练信号是通过将发射的伪噪声序列信号的频率 在发送的伪噪声序列信号的频率之前的基本频率被调制; 以及（b）基于训练信号的频率与参考伪噪声序列信号的基本频率之间的差异在接收机中执行滑动相关，从而通过滑动相关来实现初始采集。

公开(公告)号：US5745483A

公开(公告)日：1998-04-28

申请号：US536248

申请日：1995-09-29

申请人： Yoshikatsu Nakagawa ,  Masamitsu Suzuki ,  Satoshi Takahashi ,  Harumi Kokaji

发明人： Yoshikatsu Nakagawa ,  Masamitsu Suzuki ,  Satoshi Takahashi ,  Harumi Kokaji

IPC分类号： H04J13/00 ,  H04B1/707 ,  H04L12/28 ,  H04W72/04 ,  H04W72/08 ,  H04W74/08 ,  H04W84/12 ,  H04W84/18 ,  H04B7/204

CPC分类号： H04W74/0808 ,  H04W4/06 ,  H04W48/08 ,  H04W72/02 ,  H04W76/02

摘要： A wireless computer network communication system for use in an environment in which plural groups can perform network communication at the same time. A channel controller receives a requirement of starting network communication from a computer, controls a wireless channel sensor, and detects a received signal. The wireless channel detector detects which wireless channel is employed by one or more other networks and the channel controller determines the wireless channel to be employed by its own group and also controls the transceiver. The computer starts the network communication through a network controller. The network controller controls the transceiver for transmitting and receiving data by use of the wireless channel, and the same further controls the transmitting/receiving of the requirements and the data from the computer.

摘要翻译： 一种在多个组可以同时进行网络通信的环境中使用的无线计算机网络通信系统。 信道控制器接收从计算机开始网络通信的需求，控制无线信道传感器，并检测接收到的信号。 无线信道检测器检测一个或多个其他网络使用哪个无线信道，并且信道控制器确定要由其自己的组采用的无线信道，并且还控制收发信机。 计算机通过网络控制器启动网络通信。 网络控制器通过使用无线信道控制收发信机发送和接收数据，同时进一步控制来自计算机的要求和数据的发送/接收。

公开(公告)号：US06643319B1

公开(公告)日：2003-11-04

申请号：US08546544

申请日：1995-10-20

申请人： Masamitsu Suzuki ,  Harumi Kokaji ,  Satoshi Takahashi ,  Yoshikatsu Nakagawa

发明人： Masamitsu Suzuki ,  Harumi Kokaji ,  Satoshi Takahashi ,  Yoshikatsu Nakagawa

IPC分类号： H04B1707

CPC分类号： H04W16/14 ,  H04B1/7103 ,  H04B2201/709709 ,  H04J13/16 ,  H04W4/06 ,  H04W48/08 ,  H04W72/02 ,  H04W72/0466 ,  H04W74/0808 ,  H04W76/10

摘要： A wireless network communication system and method in which the wireless channel can be determined by selecting a vacant pseudonoise (PN) or spreading code. When communication is started, in order to judge whether a PN code is being employed by another communication group, the degree of correlation between the received signal converted to an intermediate frequency or a base-band frequency by a transceiver and a reference pseudonoise code signal is detected using a correlation circuit within a correlation detector. There is a channel controller which controls the PN code used by the communication terminal which receives an output of the correlation detector which correlates a received channel signal with a reference PN code generated by the PN code generator. If the correlation output signal is not smaller than a threshold value, it is determined that the PN code is to be employed. Furthermore, at the time of transmission, the pseudonoise code generator is controlled so as to supply the selected PN code to a transceiver. The transceiver combines the data to be transmitted with the PN code to be used in order to determine the final signal which is to be transmitted by the terminal.

公开(公告)号：US06392167B1

公开(公告)日：2002-05-21

申请号：US09306784

申请日：1999-05-07

申请人： Yoshikatsu Nakagawa

发明人： Yoshikatsu Nakagawa

IPC分类号： G08C2100

CPC分类号： G06F3/0436

摘要： A touch position sensing system including a transducer configured to transmit and modulate by pseudo random coding acoustic waves and to decode reflected waves generated by the acoustic waves by autocorrelating the pseudo random coding; a substrate configured to propagate the acoustic waves, including a touch surface having a first axis along a side of the perimeter of the substrate and a second axis which is perpendicular to the first axis and located along a second side of the perimeter; and, a first reflective array configured to reflect the acoustic waves transmitted by the transducer such that reflected waves are generated traveling parallel to the second axis, having a length substantially as long as the side of the perimeter corresponding to the first axis including partially reflective grating along the length and disposed lengthwise along the first axis of said substrate. Wherein, a touch to the touch surface attenuates the reflected waves such that said modulation by pseudo random coding of acoustic waves is varied, the transducer configured to detect the location of the touch based on variation in autocorrelation of the varied pseudo random coding included in the reflected waves.

摘要翻译： 一种触摸位置感测系统，包括被配置为通过伪随机编码声波进行发送和调制的换能器，并通过对伪随机编码进行自相关来解码由声波产生的反射波; 被配置为传播声波的衬底，包括具有沿着衬底的周边的一侧的第一轴线的触摸表面和垂直于第一轴线并沿着周边的第二侧定位的第二轴线; 以及第一反射阵列，其被配置为反射由所述换能器传输的声波，使得平行于所述第二轴线产生反射波，其长度基本上与所述第一轴线对应的周边的一侧包括部分反射光栅 沿着所述长度并且沿着所述基板的第一轴线纵向设置。 其中，对触摸表面的触摸衰减反射波，使得通过声波的伪随机编码的所述调制被改变，所述换能器被配置为基于包括在所述触摸表面中的变化的伪随机编码的自相关的变化来检测触摸的位置 反射波。

公开(公告)号：US5621414A

公开(公告)日：1997-04-15

申请号：US257678

申请日：1994-06-08

申请人： Yoshikatsu Nakagawa

发明人： Yoshikatsu Nakagawa

IPC分类号： G01S5/02 ,  H04B1/707 ,  H04J13/00 ,  H04W60/00 ,  H04W64/00 ,  G01S1/00

CPC分类号： G01S5/14

摘要： It is enabled to perform the location confirmation as precisely as possible at a small number of receiving stations. In the respective stations, after performing the operation of filtering and amplifying at the front end portion, the signal passes through the discriminating portion corresponding to the transmission signal from the transmitter. Thereafter, the electric power or amplitude of the signal emitted from each transmitter is measured. The measured value is sent to the central station through the backbone communication network. The more the transmission distance of the electric wave is, the more the electric wave attenuates.Consequently, it is possible to know the zone in which the worker carrying the transmitter is staying nearby by respectively comparing with each other the electric powers of the respective signals; a, b, and c transmitted from the transmitters a-c measured by the respective receivers.The transmitters generating the specific signals respectively are given to the respective workers, and it is possible to estimate the zone in which the worker is staying and to confirm the location of the worker by giving the receiver in each zone a function of discriminating all of those signals from the others.

摘要翻译： 能够在少数接收站处尽可能精确地执行位置确认。 在各个站中，在前端部分执行滤波和放大操作之后，信号通过与来自发射机的传输信号对应的识别部分。 此后，测量从每个发射器发射的信号的电功率或振幅。 测量值通过骨干通信网络发送到中心站。 电波的传输距离越多，电波衰减越多。 因此，可以通过分别彼此比较各个信号的电力来知道携带发射机的工人驻留在附近的区域; a，b和c从各个接收机测量的发射机a-c发射。 产生特定信号的发射机分别给予相应的工作人员，并且可以估计工作人员停留的区域并且通过给每个区域中的接收机确定所有这些功能的功能来确认工作人员的位置 来自其他人的信号。

公开(公告)号：US5216429A

公开(公告)日：1993-06-01

申请号：US870469

申请日：1992-04-17

申请人： Yoshikatsu Nakagawa ,  Takaaki Hasegawa

发明人： Yoshikatsu Nakagawa ,  Takaaki Hasegawa

IPC分类号： G01S5/06

CPC分类号： G01S5/06

摘要： A system for measuring a position of an object moving in a limited area includes a transmitter provided on the moving object for periodically transmitting pseudo-noise signals at time intervals in accordance with an intrinsic period assigned to the object, and a plurality of stations located at predetermined coordinates, each of the stations including a receiving part for receiving the signals so that pulse signals whose period is matched with the intrinsic period are output, and a detecting part for detecting correlative pulses from the pulse signals. The system further includes a delay detecting part for detecting a time difference between reception of a first correlative signal by one of the stations and reception of each of the subsequent correlative pulses by the other stations, and a control part for calculating coordinates of the position of the moving object based on the time differences and based on the given coordinates of the stations, so that the calculated coordinates of the position are output.

摘要翻译： 用于测量在有限区域中移动的物体的位置的系统包括设置在移动物体上的发射器，用于按照分配给物体的固有周期以时间间隔周期性地发送伪噪声信号，以及多个位于 预定坐标，每个站包括用于接收信号的接收部分，使得周期与本征周期匹配的脉冲信号被输出;以及检测部分，用于检测来自脉冲信号的相关脉冲。 该系统还包括延迟检测部分，用于检测由其中一个站接收第一相关信号之间的时间差以及由其它站点接收每个随后的相关脉冲;以及控制部分，用于计算位置的坐标 基于时间差的运动对象，并基于站的给定坐标，从而输出所计算的位置坐标。

公开(公告)号：US5210772A

公开(公告)日：1993-05-11

申请号：US663301

申请日：1991-03-01

申请人： Yoshikatsu Nakagawa

发明人： Yoshikatsu Nakagawa

IPC分类号： G06M11/00 ,  G08G1/01

CPC分类号： G08G1/01

摘要： An approximate figures measuring system includes a signal transmission device and a signal receiving device. The signal transmission device is arranged in each of any objects to be measured and emits a signal from which a peak can be generated at a receiving device in a predetermined period. The signal receiving device receives the signal transmitted from the signal transmission device and includes a peak detection circuit and a calculation circuit for obtaining an output corresponding to the number of the peaks of the signals from the objects.

摘要翻译： 近似数字测量系统包括信号传输装置和信号接收装置。 信号传输装置布置在要测量的任何物体的每一个中，并且在预定时间段内发射可以在接收装置处从其产生峰值的信号。 信号接收装置接收从信号发送装置发送的信号，并且包括峰值检测电路和计算电路，用于获得与来自对象的信号的峰值数相对应的输出。

公开(公告)号：US4902517A

公开(公告)日：1990-02-20

申请号：US224264

申请日：1988-07-26

申请人： Yoshikatsu Nakagawa ,  Syuzi Kitamura

发明人： Yoshikatsu Nakagawa ,  Syuzi Kitamura

IPC分类号： A23C9/127 ,  A23C9/13 ,  C12G3/02

CPC分类号： C12G3/02 ,  A23C9/127 ,  A23C9/1307

摘要： Milk-derived alcoholic beverages of fine flavor can be obtained by carrying out alcoholic fermentation under a sufficiently high osmotic pressure. In addition, products having fruit-juice flavor can be obtained by addition of fruit juice to the alcoholic fermented products prepared above. Furthermore, products of further improved flavor can be obtained by addition of the initial distillate fractions of the alcoholic fermented products prepared above to the alcoholic fermented products not provided to said distillation.