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1. 发明授权

US07860395B2 Optical access network system 失效
标题翻译：光接入网系统
公开(公告)号：US07860395B2
公开(公告)日：2010-12-28
申请号：US11700008
申请日：2007-01-31
申请人： Masayuki Kashima , Hideyuki Iwamura
发明人： Masayuki Kashima , Hideyuki Iwamura
IPC分类号： H04J14/00
CPC分类号： H04J14/005 , H04J14/02
摘要： An optical access network system capable of transmitting and receiving high-speed signals and which allows the number of subscribers to be increased without increasing the number of wavelengths used is provided. An optical line terminal and an optical network unit are joined via an optical fiber transmitting line, a star coupler, and a plurality of branching optical fiber transmitting lines. The optical line terminal and optical network unit are constituted comprising an optical processing section and an electrical processing section. The optical processing section comprises a light-emitting element and a light-receiving element. The electrical processing section comprises a transmitting signal processing section that generates an encoded transmitting signal in the form of an electrical signal by encoding a transmitting signal and a receiving signal processing section that obtains a receiving signal by decoding a code-division-multiplexed signal that has been converted from optical-signal form to electrical-signal form by the light-receiving element. The optical access network system is characterized in that the decoding processing circuit that the receiving signal processing section comprises is constituted comprising an analog matched filter and a decision circuit.
摘要翻译：提供一种能够发送和接收高速信号并且允许增加用户数而不增加使用的波长数量的光接入网络系统。光线路终端和光网络单元经由光纤传输线，星形耦合器和多个分支光纤传输线连接。光线路终端和光网络单元由光处理部和电处理部构成。光学处理部分包括发光元件和光接收元件。电子处理部分包括：发送信号处理部分，通过对发送信号进行编码来生成电信号形式的编码发送信号;以及接收信号处理部分，其通过解码具有被光接收元件从光信号形式转换成电信号形式。光接入网系统的特征在于，接收信号处理部分包括的解码处理电路包括模拟匹配滤波器和判定电路。

2. 发明授权

US07720336B2 Code division multiplexing optical access network system 有权
标题翻译：码分复用光接入网系统
公开(公告)号：US07720336B2
公开(公告)日：2010-05-18
申请号：US11902128
申请日：2007-09-19
申请人： Masayuki Kashima
发明人： Masayuki Kashima
IPC分类号： G02B6/26
CPC分类号： H04J14/005
摘要： The present invention provides an optical access network system that allows the transmission of packets irrespective of the packet length and which is also capable of adapting to cases where another user temporarily requires a large capacity bandwidth. This system performs two-way optical communications using a code division multiplexing system via an optical fiber channel and a star coupler between an optical line terminal and first and second optical network units. The optical line terminal comprises a bandwidth control section and a bandwidth allocation section and the bandwidth control section has signal converter pairs installed therein in a number equal to the number of optical network units. Further, the optical network units each comprise first and second bandwidth control sections and first and second bandwidth allocation sections. The bandwidth control sections each have one set of signal converter pairs installed therein. The bandwidth control sections of the optical line terminal and the optical network units each have a signal converter pair that is constituted by one set of a variable serial to parallel conversion unit and a variable parallel to serial conversion unit each having a variable bandwidth management function.
摘要翻译：本发明提供了一种光接入网络系统，其允许分组传输而不考虑分组长度，并且还能够适应另一用户临时需要大容量带宽的情况。该系统通过光纤通道和光线路终端与第一和第二光网络单元之间的星形耦合器，使用码分多路复用系统进行双向光通信。光线路终端包括带宽控制部分和带宽分配部分，并且带宽控制部分以等于光网络单元的数量安装在其中的信号转换器对。此外，光网络单元各自包括第一和第二带宽控制部分以及第一和第二带宽分配部分。带宽控制部分各自具有安装在其中的一组信号转换器对。光线路终端和光网络单元的带宽控制部分各自具有信号转换器对，该信号转换器对由一组可变串行/并行转换单元和可变并行转换单元组成，每个变换单元具有可变带宽管理功能。

3. 发明授权

US07324753B2 Optical communication network using a code division multiplexing method 有权
标题翻译：光通信网使用码分复用方法
公开(公告)号：US07324753B2
公开(公告)日：2008-01-29
申请号：US10752573
申请日：2004-01-08
申请人： Masayuki Kashima , Kazuhiko Matsuno
发明人： Masayuki Kashima , Kazuhiko Matsuno
IPC分类号： H04J14/00
CPC分类号： H04J14/005
摘要： The present invention is a high-speed and low-cost optical communication network. A preferred embodiment of this optical communication network comprises an accommodation device, optical couplers that are connected to corresponding ports of this accommodation device, and communication terminals that are connected to corresponding optical couplers. Further, data transmitted by the communication terminals to the accommodation device is code-division multiplexed. Because data collision is prevented by means of code division multiplexing, control of the timing with which the communication terminals transmit data is not required. Meanwhile, data transmitted by the accommodation device to the communication terminals is time-division multiplexed because there is no risk of collision.
摘要翻译：本发明是一种高速，低成本的光通信网络。该光通信网络的一个优选实施例包括一个容纳设备，连接到该接纳设备的相应端口的光耦合器以及连接到对应的光耦合器的通信终端。此外，由通信终端发送到住宿设备的数据被码分复用。由于通过码分复用来防止数据冲突，所以不需要控制通信终端发送数据的定时。同时，由于不存在碰撞的风险，由住宿装置向通信终端发送的数据是时分复用的。

4. 发明授权

US06944400B2 Optical path switching device 有权
标题翻译：光路切换装置
公开(公告)号：US06944400B2
公开(公告)日：2005-09-13
申请号：US09973755
申请日：2001-10-11
申请人： Masayuki Kashima
发明人： Masayuki Kashima
IPC分类号： H04B10/27 , H04B10/032 , H04B10/291 , H04J13/00 , H04J14/00 , H04J14/04 , H04J14/06 , H04Q3/52 , H04Q11/00 , H04J13/02
CPC分类号： H04Q11/0005 , H04Q2011/0011 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/002 , H04Q2011/0024 , H04Q2011/0032
摘要： An optical path switching device is provided whereby changeover of optical path can be achieved with higher speed than conventionally. In this optical path switching device, a plurality of despreaders and a plurality of spreaders are connected in a prescribed corresponding relationship, extraction of a desired code path signal from a code division multiplexing signal that is input from an input circuit is performed, by means of despreaders that are capable of code selection and/or setting to OFF, and the extracted code path signal is given a new code by a spreader and output to an output circuit.
摘要翻译：提供了一种光路切换装置，可以以比以往更高的速度实现光路的切换。在该光路切换装置中，以规定的对应关系连接多个解扩器和多个扩展器，通过从输入电路输入的码分多路复用信号中提取期望码路信号，借助于能够进行代码选择和/或设置为OFF的解扩器，并且提取的代码路径信号由扩展器给予新的代码并输出到输出电路。

5. 发明授权

US07564774B2 Communication network using code division multiplexing technology 失效
标题翻译：通信网使用码分复用技术
公开(公告)号：US07564774B2
公开(公告)日：2009-07-21
申请号：US10928307
申请日：2004-08-30
申请人： Masayuki Kashima , Kazuhiko Matsuno
发明人： Masayuki Kashima , Kazuhiko Matsuno
IPC分类号： H04J11/00 , H04B7/216 , H04L12/66
CPC分类号： H04B7/2628 , H04W52/383
摘要： A communication network which can use communication bandwidth effectively. Spreading codes of a first and a second code length are assigned for every communication terminal interfaces connected to the same communication network. The spreading codes of the first code length are used for data communications. The spreading codes of the second code length are used for the control communications between the interfaces and the sever. The interfaces and the server receives mixed signals of the data and the control signals. When the received signals are decoded using the spreading code of the first code length, control signal components became equal to or lower than the noise level. When the received signals are decoded using the spreading code of the second code length, data components became equal to or lower than the noise level. Therefore, the interfaces and the server can extract one of these signal components.
摘要翻译：可以有效利用通信带宽的通信网络。为连接到同一通信网络的每个通信终端接口分配第一和第二代码长度的扩展码。第一代码长度的扩展码用于数据通信。第二代码长度的扩展码用于接口和服务器之间的控制通信。接口和服务器接收数据和控制信号的混合信号。当使用第一码长度的扩展码对接收的信号进行解码时，控制信号分量变得等于或低于噪声电平。当使用第二码长度的扩展码对接收的信号进行解码时，数据成分变得等于或低于噪声电平。因此，接口和服务器可以提取这些信号分量之一。

6. 发明授权

US07564286B2 Clock regeneration circuit 失效
标题翻译：时钟再生电路
公开(公告)号：US07564286B2
公开(公告)日：2009-07-21
申请号：US12073330
申请日：2008-03-04
申请人： Hideaki Tamai , Masayuki Kashima
发明人： Hideaki Tamai , Masayuki Kashima
IPC分类号： H03K3/00
CPC分类号： H04L7/027 , H03K19/0002 , H04L7/0087 , H04L25/4917
摘要： A clock regeneration circuit includes a half-bit delay device that outputs a half-bit delayed signal B of a multi-level input signal A, a one-bit delay device that outputs a one-bit delayed signal C of the signal A, an adder, an attenuator that forms an threshold signal, an XOR circuit, and a BPF that outputs a clock signal with a frequency corresponding to a bit rate of the XOR signal. The XOR signal is calculated as an XOR of a two-level input signal F, which is a logical zero when a level of the signal A is no more than a level of the threshold signal and otherwise is a logical one, and a two-level input signal G, which is a logical zero when a level of the signal B is no more than the level of the threshold signal and otherwise is a logical one.
摘要翻译：时钟再生电路包括输出多电平输入信号A的半位延迟信号B的半位延迟器件，输出信号A的1位延迟信号C的1位延迟器件，加法器，形成阈值信号的衰减器，XOR电路和输出具有与XOR信号的比特率对应的频率的时钟信号的BPF。 XOR信号被计算为两电平输入信号F的异或，当信号A的电平不大于阈值信号的电平时，其为逻辑0，否则为逻辑0，电平输入信号G，当信号B的电平不大于阈值信号的电平时为逻辑0，否则为逻辑0。

7. 发明授权

US07746805B2 Communication network using synchronous code division multiplexing method 失效
标题翻译：通信网采用同步码分复用方式
公开(公告)号：US07746805B2
公开(公告)日：2010-06-29
申请号：US11606150
申请日：2006-11-30
申请人： Hideaki Tamai , Masayuki Kashima
发明人： Hideaki Tamai , Masayuki Kashima
IPC分类号： G01R31/08 , H04J13/00 , H04J1/00 , H04J3/06 , H04J4/00
CPC分类号： H04J14/0226 , H04B1/7075 , H04B1/7085 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282
摘要： In a communication network which performs transmission from a plurality of first communication devices to a single second communication device using a synchronous code division multiplexing technique, the phases of signals transmitted from the first communication devices are synchronized easily. The first communication devices control the transmission phase of spread modulated signals using phase control information received from the second communication device. A repeater generates a code division multiplexed signal by superposing the spread modulated signals transmitted respectively from the first transmission devices. The second transmission device demultiplexes the code division multiplexed signal received from the repeater, determines the optimum phase of the demultiplexed signals, and transmits the determined optimum phase to the first transmission devices as the phase control information.
摘要翻译：在使用同步码分复用技术从多个第一通信装置执行发送到单个第二通信装置的通信网络中，从第一通信装置发送的信号的相位容易地同步。第一通信设备使用从第二通信设备接收的相位控制信息来控制扩展调制信号的传输相位。中继器通过叠加分别从第一传输设备传输的扩展调制信号来产生码分复用信号。第二发送装置对从中继器接收的码分多路复用信号进行解复用，确定解复用信号的最佳相位，并将确定的最佳相位发送给第一发送装置作为相位控制信息。

8. 发明申请

US20090252496A1 COMMUNICATION NETWORK USING CODE DIVISION MULTIPLEXING TECHNOLOGY 失效
标题翻译：使用代码段多路复用技术的通信网络
公开(公告)号：US20090252496A1
公开(公告)日：2009-10-08
申请号：US12481205
申请日：2009-06-09
申请人： MASAYUKI KASHIMA , Kazuhiko Matsuno
发明人： MASAYUKI KASHIMA , Kazuhiko Matsuno
IPC分类号： H04J14/00 , H04B7/216
CPC分类号： H04B7/2628 , H04W52/383
摘要： A communication network which can use communication bandwidth effectively. Spreading codes of a first and a second code length are assigned for every communication terminal interfaces connected to the same communication network. The spreading codes of the first code length are used for data communications. The spreading codes of the second code length are used for the control communications between the interfaces and the sever. The interfaces and the server receives mixed signals of the data and the control signals. When the received signals are decoded using the spreading code of the first code length, control signal components became equal to or lower than the noise level. When the received signals are decoded using the spreading code of the second code length, data components became equal to or lower than the noise level. Therefore, the interfaces and the server can extract one of these signal components.
摘要翻译：可以有效利用通信带宽的通信网络。为连接到同一通信网络的每个通信终端接口分配第一和第二代码长度的扩展码。第一代码长度的扩展码用于数据通信。第二代码长度的扩展码用于接口和服务器之间的控制通信。接口和服务器接收数据和控制信号的混合信号。当使用第一码长度的扩展码对接收的信号进行解码时，控制信号分量变得等于或低于噪声电平。当使用第二码长度的扩展码对接收的信号进行解码时，数据成分变得等于或低于噪声电平。因此，接口和服务器可以提取这些信号分量之一。

9. 发明授权

US07535951B2 Code division multiplexing communication system 失效
标题翻译：码分复用通信系统
公开(公告)号：US07535951B2
公开(公告)日：2009-05-19
申请号：US11305341
申请日：2005-12-19
申请人： Kazuhiko Matsuno , Masayuki Kashima
发明人： Kazuhiko Matsuno , Masayuki Kashima
IPC分类号： H04B1/707
CPC分类号： H04J13/10 , H04J13/16
摘要： A code division multiplexing communication system which transmits a single signal array in use of band for two channels. A first data generator generates a channel signal array. A data distributor branches the channel signal array into two. A first spread modulator converts one of the branch signal array to a signal array having values VL and VH by performing spread modulation in use of a predetermined spread code. A second spread modulator converts the other branch signal array to a signal array having signal values VL, VH and high impedance and then performs spread modulation in use of the same spread code as the first spread modulator. The outputs of the first and the second spread modulator are superimposed by an adder. Accordingly, a quaternary signal array using band for two channels can be generated.
摘要翻译：一种码分复用通信系统，其在两个信道的频带使用中发送单个信号阵列。第一数据发生器产生通道信号阵列。数据分配器将信道信号阵列分为两部分。第一扩展调制器通过使用预定扩展码进行扩展调制，将分支信号阵列中的一个转换为具有值VL和VH的信号阵列。第二扩展调制器将另一分支信号阵列转换成具有信号值VL，VH和高阻抗的信号阵列，然后使用与第一扩展调制器相同的扩展码来执行扩展调制。第一和第二扩展调制器的输出由加法器叠加。因此，可以生成使用用于两个通道的频带的四元信号阵列。

10. 发明申请

US20090067560A1 Parallel decoder 有权
标题翻译：并行解码器
公开(公告)号：US20090067560A1
公开(公告)日：2009-03-12
申请号：US12230621
申请日：2008-09-02
申请人： Hideyuki Iwamura , Masayuki Kashima
发明人： Hideyuki Iwamura , Masayuki Kashima
IPC分类号： H04L7/04
CPC分类号： H04B1/7093
摘要： A parallel decoder for decoding a code division multiplexed (CDM) signal. The parallel decoder has two matched filters, both operating at a frequency equal to half the chip rate of the CDM signal. One matched filter correlates odd-numbered chips of the CDM signal with odd-numbered chips of the spreading code. The other matched filter correlates even-numbered chips of the CDM signal with even-numbered chips of the spreading code. The two resulting correlated signals are combined, and the decoded signal is obtained from the combined signal. This arrangement doubles the maximum possible chip rate of the CDM signal.
摘要翻译：一种用于解码码分多路复用（CDM）信号的并行解码器。并行解码器具有两个匹配滤波器，它们都以等于CDM信号的码片速率的一半的频率工作。一个匹配滤波器将CDM信号的奇数码片与扩展码的奇数码片相关。其他匹配滤波器将CDM信号的偶数码片与扩展码的偶数码片相关。将两个相关信号组合起来，并从合成信号中获得解码信号。这种安排将CDM信号的最大可能的码片速率加倍。

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