公开(公告)号：US06616352B1

公开(公告)日：2003-09-09

申请号：US09586883

申请日：2000-06-05

申请人： Junji Shigeta ,  Toshihiko Myojo ,  Yasuhiro Takahashi ,  Kazuo Moritomo

发明人： Junji Shigeta ,  Toshihiko Myojo ,  Yasuhiro Takahashi ,  Kazuo Moritomo

IPC分类号： H04B1000

CPC分类号： H04B10/1125

摘要： A bidirectional optical space transmission system is made up of a pair of optical transmission apparatus. Each optical transmission apparatus comprises a signal generating circuit for generating a pilot signal, a multiplexing section for multiplexing the pilot signal and a main signal to be transmitted, an electrooptic converter section for emitting an optical signal on the basis of the signal produced by the multiplexing process, a light receiving element for receiving an optical signal transmitted from the partner optical transmission apparatus and detecting a pilot signal contained therein, and a demodulation circuit for demodulating the pilot signal detected by the light receiving element. Pilot signals multiplexed with main signals to be transmitted through the bidirectional optical transmission system are subjected to spreading modulation and demodulated for spreading by the demodulation circuit.

摘要翻译： 双向光学空间传输系统由一对光传输装置组成。 每个光传输装置包括用于产生导频信号的信号发生电路，用于复用导频信号的复用部分和要传输的主信号，基于由多路复用产生的信号发射光信号的电光转换器部分 处理光接收元件，用于接收从伙伴光传输装置发送的光信号并检测其中包含的导频信号;以及解调电路，用于解调由光接收元件检测的导频信号。 对通过双向光传输系统发送的主信号进行多路复用的导频信号经过扩展调制，并由解调电路进行解调以进行扩频。

公开(公告)号：US06625162B2

公开(公告)日：2003-09-23

申请号：US09208404

申请日：1998-12-10

申请人： Toshihiko Myojo ,  Tetsuo Kanda ,  Kazuo Moritomo

发明人： Toshihiko Myojo ,  Tetsuo Kanda ,  Kazuo Moritomo

IPC分类号： H04L12413

CPC分类号： H04W74/0816

摘要： In a communication system including plural communication apparatuses that communicate each other using a single communication path, the state of the communication path is detected for communication. If the communication path is busy, a first control method is performed for controlling access to the communication path using a back off time selected at random. A second control method secures the communication path by transmitting and receiving the predetermined signal at transmission of a signal so as to control access to the communication path. In accordance with the kind of the signal to be transmitted, the first or the second control method is selected for communication. Thus, plural communication apparatuses can perform efficient communication.

摘要翻译： 在包括使用单个通信路径相互通信的多个通信装置的通信系统中，检测通信路径的状态进行通信。 如果通信路径正忙，则执行第一控制方法，以便使用随机选择的退出时间控制对通信路径的访问。 第二控制方法通过在发送信号时发送和接收预定信号来确保通信路径，以便控制对通信路径的访问。 根据要发送的信号的种类，选择第一或第二控制方法进行通信。 因此，多个通信装置能够进行有效的通信。

公开(公告)号：US5856997A

公开(公告)日：1999-01-05

申请号：US546040

申请日：1995-10-20

申请人： Norihiro Mochizuki ,  Katsuo Saito ,  Akira Torisawa ,  Toshihiko Myojo ,  Ichiro Kato ,  Tetsuo Kanda ,  Atsushi Takasaki ,  Kazuo Moritomo ,  Rie Suzuki

发明人： Norihiro Mochizuki ,  Katsuo Saito ,  Akira Torisawa ,  Toshihiko Myojo ,  Ichiro Kato ,  Tetsuo Kanda ,  Atsushi Takasaki ,  Kazuo Moritomo ,  Rie Suzuki

IPC分类号： H04B1/7073 ,  H04J13/00 ,  H04B1/69

CPC分类号： H04B1/707

摘要： A receiving apparatus includes a base-band conversion circuit, a synchronizing circuit/code generator and a demodulator. The base-band conversion circuit converts a received signal into a base-band signal. The synchronizing circuit/code generator detects a spread code included in the received signal to generate a plurality of spread codes in synchronization with the spread code included in the received signal. The demodulator uses the plurality of spread codes supplied by the synchronizing circuit/code generator to demodulate the base-band signal.

公开(公告)号：US06459721B1

公开(公告)日：2002-10-01

申请号：US09182004

申请日：1998-10-29

申请人： Norihiro Mochizuki ,  Katsuo Saito ,  Akira Torisawa ,  Toshihiko Myojo ,  Ichiro Kato ,  Tetsuo Kanda ,  Atsushi Takasaki ,  Kazuo Moritomo ,  Rie Suzuki

发明人： Norihiro Mochizuki ,  Katsuo Saito ,  Akira Torisawa ,  Toshihiko Myojo ,  Ichiro Kato ,  Tetsuo Kanda ,  Atsushi Takasaki ,  Kazuo Moritomo ,  Rie Suzuki

IPC分类号： H04B1500

CPC分类号： H04B1/707

摘要： A receiving apparatus includes a base-band conversion circuit, a synchronizing circuit/code generator and a demodulator. The base-band conversion circuit converts a received signal into a base-band signal. The synchronizing circuit/code generator detects a spread code included in the received signal to generate a plurality of spread codes in synchronization with the spread code included in the received signal. The demodulator uses the plurality of spread codes supplied by the synchronizing circuit/code generator to demodulate the base-band signal.

摘要翻译： 接收装置包括基带转换电路，同步电路/码发生器和解调器。 基带转换电路将接收的信号转换为基带信号。 同步电路/码发生器检测包括在接收信号中的扩展码，以与包括在接收信号中的扩展码同步地产生多个扩展码。 解调器使用由同步电路/码发生器提供的多个扩展码来解调基带信号。

公开(公告)号：US5260969A

公开(公告)日：1993-11-09

申请号：US978161

申请日：1992-11-17

申请人： Ichiro Kato ,  Toshihiko Myojo

发明人： Ichiro Kato ,  Toshihiko Myojo

IPC分类号： H04B1/707 ,  H04L27/30

CPC分类号： H04B1/70712

摘要： A spectrum diffusion communication receiving apparatus includes a first generating unit for generating a reference code, a second generating unit for generating a reference signal in synchronism with the reference code, a correlating unit for obtaining a correlation between a received signal and the reference code, and a decoding for decoding the received signal in accordance with the reference signal and a correlation output from the correlating unit.

摘要翻译： 频谱扩散通信接收装置包括用于产生参考码的第一产生单元，用于与参考码同步产生参考信号的第二生成单元，用于获得接收信号与参考码之间的相关性的相关单元，以及 用于根据参考信号对接收信号进行解码的解码以及来自相关单元的相关输出。

公开(公告)号：US20080117857A1

公开(公告)日：2008-05-22

申请号：US11942177

申请日：2007-11-19

申请人： Toshihiko Myojo

发明人： Toshihiko Myojo

IPC分类号： H04B7/14

CPC分类号： H04B7/15 ,  H04B7/15542 ,  H04W8/005 ,  H04W16/26 ,  H04W88/04

摘要： A control station apparatus performs wireless communication with a plurality of communication apparatuses and sends data to the communication apparatuses. The control station apparatus receives, from each of the communication apparatuses, identification information of other communication apparatuses with which the communication apparatus is capable of wireless communication; selects, from among the plurality of communication apparatuses, at least one relay apparatus that relays transmission of the data, based on the received identification information; determines a communication timing for the relaying performed by the selected relay apparatus; and notifies the selected relay apparatus of an instruction to perform data relay and the communication timing. The control station selects the relay apparatus so that a communication apparatus that receives the data from the control station apparatus via two or more transmission paths is present.

摘要翻译： 控制站装置与多个通信装置进行无线通信，并向通信装置发送数据。 所述控制站装置从所述通信装置接收与所述通信装置能够进行无线通信的其他通信装置的识别信息; 从所述多个通信装置中选择至少一个中继装置，其基于所接收的识别信息中继所述数据的传输; 确定由所选择的中继装置执行的中继的通信定时; 并通知所选择的中继装置执行数据中继的指令和通信定时。 控制站选择中继装置，使得存在经由两个或更多个传输路径从控制站装置接收数据的通信装置。

公开(公告)号：US5812592A

公开(公告)日：1998-09-22

申请号：US569462

申请日：1995-12-08

申请人： Rie Suzuki ,  Toshihiko Myojo ,  Norihiro Mochizuki

发明人： Rie Suzuki ,  Toshihiko Myojo ,  Norihiro Mochizuki

IPC分类号： H04B1/707

CPC分类号： H04B1/7075 ,  H04B1/70712

摘要： A spread spectrum reception apparatus generates a local reference code and a timing signal having 1/2 the period of the reference code. Correlation calculation between a received spread spectrum signal and the local reference code is performed. Upon reception of the correlation calculation result, a peak detector detects a correlation peak signal. The rate of a code generation clock is adjusted in accordance with the phase difference between the timing signal and the correlation peak signal to perform de-spread processing of the received signal.

摘要翻译： 扩展频谱接收装置产生参考码的周期的​​+ E，fra 1/2 + EE的本地参考码和定时信号。 执行接收扩频信号和本地参考码之间的相关计算。 在接收到相关计算结果之后，峰值检测器检测相关峰值信号。 根据定时信号和相关峰值信号之间的相位差来调整代码生成时钟的速率，以执行接收信号的解扩处理。

公开(公告)号：US5537396A

公开(公告)日：1996-07-16

申请号：US247937

申请日：1994-05-24

申请人： Tetsuo Kanda ,  Katsuo Saito ,  Toshihiko Myojo ,  Ichiro Kato ,  Norihiro Mochizuki ,  Hidetada Nago

发明人： Tetsuo Kanda ,  Katsuo Saito ,  Toshihiko Myojo ,  Ichiro Kato ,  Norihiro Mochizuki ,  Hidetada Nago

IPC分类号： H04J13/00 ,  H04B1/7075 ,  H04J13/02

CPC分类号： H04B1/707 ,  H04B1/709

摘要： A diffusion code generating method for a code division multiplex communication by a spread spectrum system is provided. A receiving apparatus according to the above method receives the signal which was multiplexed by using a plurality of sets of diffusion codes and comprises: a generator to generate a sync code and a plurality of sets of diffusion codes other than the sync code; a correlator to obtain a correlation between a reception signal and the sync code generated from the generator; and a receiver to receive the reception signal on the basis of the plurality of sets of diffusion codes generated from the generator. The generator generates the sync code in a manner such that the cross-correlation values are set to very small values at positions near a code sync point or are enough smaller than the autocorrelation peak of the sync code or are set to very small values at both of or either one of the positions before and after the code sync point.

摘要翻译： 提供了一种扩频码生成方法，用于通过扩频系统进行码分复用通信。 根据上述方法的接收装置接收通过使用多组扩散码复用的信号，并且包括：生成器，用于生成除同步码之外的同步码和多组扩散码; 相关器，用于获得从发生器产生的接收信号和同步码之间的相关性; 以及接收器，其基于从发电机产生的多组扩散码接收接收信号。 发生器以这样的方式生成同步码，使得互相关值在码同步点附近的位置被设置为非常小的值，或者足够小于同步码的自相关峰值，或者被设置为非常小的值 或者在代码同步点之前和之后的任一个位置。

公开(公告)号：US07792955B2

公开(公告)日：2010-09-07

申请号：US11298424

申请日：2005-12-08

申请人： Toshihiko Myojo ,  Tatsuhiko Sakai

发明人： Toshihiko Myojo ,  Tatsuhiko Sakai

IPC分类号： H04W24/00 ,  G06F15/16

CPC分类号： H04W72/1278 ,  H04W52/0248 ,  H04W52/0258 ,  H04W88/06 ,  H04W92/02 ,  Y02D70/142 ,  Y02D70/144

摘要： The claimed invention is directed to a communication apparatus which comprises a monitor unit that monitors communication conditions with a plurality of networks; a setting unit that performs adjusting and setting a communication timing to communicate with each of the plurality of networks in accordance with the communication condition of each network and notifying the plurality of networks of information about the set communication timings; and a communication unit that switches communication to each of the plurality of networks on the basis of the setting of the communication timings, wherein said setting unit dynamically changes the communication timing on the basis of the communication condition monitored by said monitor unit.

摘要翻译： 所要求保护的发明涉及一种通信装置，其包括监视与多个网络的通信状态的监视单元; 设置单元，根据各网络的通信条件进行调整和设定通信定时以与多个网络中的每一个进行通信，并通知多个网络关于所设置的通信定时的信息; 以及通信单元，其基于通信定时的设置来切换到多个网络中的每一个的通信单元，其中所述设置单元基于由所述监视单元监视的通信状况动态地改变通信定时。

公开(公告)号：US20050018706A1

公开(公告)日：2005-01-27

申请号：US10889832

申请日：2004-07-13

申请人： Toshihiko Myojo

发明人： Toshihiko Myojo

IPC分类号： H04B7/26 ,  H04J3/06 ,  H04L12/28 ,  H04W4/04 ,  H04W16/02 ,  H04W56/00 ,  H04W84/12 ,  H04W84/18 ,  H04L12/413

CPC分类号： H04J3/0685 ,  H04W56/001 ,  H04W72/1215 ,  H04W74/02 ,  H04W84/12 ,  H04W84/18

摘要： A control apparatus for controlling a wireless communication system, which provide enhanced communication efficiency when a single apparatus performs a plurality of wireless communications. A timing signal generation logic circuit generates transmission and reception timing control signals for controlling timing of transmission and reception by respective ones of a Bluetooth module and a wireless LAN module based on respective states thereof. MAC sections of the respective modules control transmission and reception by the respective ones of the Bluetooth module and the wireless LAN module, based on the respective corresponding transmission and reception timing control signals generated by the timing signal generation logic circuit.

摘要翻译： 一种用于控制无线通信系统的控制装置，其在单个装置执行多个无线通信时提供增强的通信效率。 定时信号生成逻辑电路根据其各自的状态生成用于控制蓝牙模块和无线LAN模块中的各个的发送和接收定时的发送和接收定时控制信号。 各个模块的MAC部分基于由定时信号产生逻辑电路产生的相应的相应的发送和接收定时控制信号来控制蓝牙模块和无线LAN模块中的相应模块的发送和接收。