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：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：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：US5610938A

公开(公告)日：1997-03-11

申请号：US360366

申请日：1994-12-21

申请人： Harumi Kokaji

发明人： Harumi Kokaji

IPC分类号： H04B1/7085 ,  H04L27/30 ,  H04B15/00 ,  H04K1/00

CPC分类号： H04B1/7085

摘要： A clock rate modulation spread spectrum (CRM-SS) communication system is provided in which a bit error rate on a receiver side is minimized by controlling at least one of parameters defining a phase error. The CRM-SS communication system uses a delay locked loop comprising an n.DELTA.-type delay locked loop, where 0

摘要翻译： 提供了一种时钟速率调制扩频（CRM-SS）通信系统，其中通过控制定义相位误差的参数中的至少一个来最小化接收机侧的误比特率。 CRM-SS通信系统使用包括n个DELTA类型延迟锁定环的延迟锁定环，其中0