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    • 21. 发明申请
    • Communication network using synchronous code division multiplexing method
    • 通信网采用同步码分复用方式
    • US20070127554A1
    • 2007-06-07
    • US11606150
    • 2006-11-30
    • Hideaki TamaiMasayuki Kashima
    • Hideaki TamaiMasayuki Kashima
    • H04B1/00
    • H04J14/0226H04B1/7075H04B1/7085H04J14/0246H04J14/0247H04J14/025H04J14/0252H04J14/0282
    • 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.
    • 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。
    • 24. 发明授权
    • CDM signal transmitter with modulators reduced in number and a method therefor
    • 具有调制器的CDM信号发射器数量减少及其方法
    • US08279967B2
    • 2012-10-02
    • US12458190
    • 2009-07-02
    • Hideaki Tamai
    • Hideaki Tamai
    • H04L27/00
    • H04B1/707H04B2201/70707H04J13/0003
    • A code division multiplex signal transmitter includes an operational circuit, a modulator unit and a multiplexer. The operational circuit adds up input transmission data on channels to produce resultant added data and modulates pieces of bit transmission data which are indicative of the values of the respective bits of the added data, when expressed in binary form, the pieces of bit transmission data being equal in number to the M bit positions of the added data expressed in binary form. The modulator unit includes modulators corresponding in number to the M bit positions of the added data in the binary form. A k-th modulator, where k is an integer of 1 to M, inclusive, modulates a k-th piece of bit transmission data to produce a k-th bit modulated signal whose amplitude level is 2k-1. The multiplexer multiplexes first to M-th bit modulated signals to produce a code division multiplex signal.
    • 码分多路复用信号发射机包括操作电路,调制器单元和多路复用器。 操作电路将通道上的输入传输数据相加以产生合成的附加数据,并且调制指示相加数据的各个比特的值的比特传输数据片段,当以二进制形式表示时,该比特传输数据是 数量相等于以二进制形式表示的相加数据的M位位置。 调制器单元包括与二进制形式的相加数据的M位位置相对应的调制器。 第k个调制器,其中k是1到M的整数,包括0和1的整数,调制第k个比特传输数据,以产生幅度为2k-1的第k比特调制信号。 多路复用器将第一到第M位调制信号复用以产生码分多路复用信号。
    • 25. 发明授权
    • Propagation delay time adjustment method, propagation delay time adjustment system, propagation delay time adjustment device, storage medium stored with propagation delay time adjustment program, and node device
    • 传播延迟时间调整方法,传播延迟时间调整系统,传播延迟时间调整装置,存储有传播延迟时间调整程序的存储介质,以及节点装置
    • US08279849B2
    • 2012-10-02
    • US12654065
    • 2009-12-09
    • Hideaki Tamai
    • Hideaki Tamai
    • H04J3/06
    • H04B1/7085H04J3/0682
    • There is provided a propagation delay time adjustment method for adjusting the propagation delay time occurring within a reception circuit for each channel of a center node device configuring a 1-to-N communications system in which communication is performed between the center node device and N (N being an integer of 2 or more) individual edge node devices using a Synchronous Code Division Multiplexing method, the center node device comprising a main control section, and each of the edge node devices comprising an auxiliary control section that controls the propagation delay time in cooperation with the main control section, the transmission delay time adjustment method comprising: transmission permission signal transmitting; transmission controlling; reception phase controlling; reception validity determining; optimum reception phase determining; and reception phase setting in which the main control section sets the optimum reception phase as the reception phase for the reception circuit.
    • 提供了一种传播延迟时间调整方法,用于调整在配置1到N通信系统的中心节点设备的每个信道的接收电路内发生的传播延迟时间,其中在中心节点设备和N( N是2以上的整数)个别边缘节点设备,所述中继节点设备包括主控制部分,并且所述边缘节点设备中的每一个包括控制所述传播延迟时间的辅助控制部分 与主控部分协作,传输延迟时间调整方法包括:传输允许信号发送; 传动控制; 接收相位控制; 接收有效性确定; 最佳接收阶段确定; 以及接收相位设置,其中主控制部分设置最佳接收相位作为接收电路的接收相位。
    • 26. 发明授权
    • Optical communications network and intensity adjustment method for optical communications network
    • 光通信网络光强度调整方法
    • US08150262B2
    • 2012-04-03
    • US12320157
    • 2009-01-21
    • Hideaki Tamai
    • Hideaki Tamai
    • H04J4/00
    • H04B1/707H04B10/27H04B10/272H04B2201/70715
    • An optical communications network in which one optical line terminal is connected to multiple optical network units and in which code division multiplexing communication is carried out between the optical line terminal and the optical network units. The optical intensities of upstream optical signals transmitted from each optical network unit are made constant at the time of multiplexing by an optical directional coupler, and the optical intensity of a downstream optical signal received by an optical network unit and an upstream optical signal received by the optical line terminal is contained within a dynamic range. Each optical network unit is provided with a variable optical attenuator that is common for an upstream optical signal and a downstream optical signal. The upstream optical signal and the downstream optical signal are attenuated by an equal attenuation. Moreover, the optical line terminal controls the attenuation at the variable optical attenuator.
    • 一种光通信网络,其中一个光线路终端连接到多个光网络单元,并且其中在光线路终端和光网络单元之间执行码分复用通信。 从光网络单元发送的上行光信号的光强度在光定向耦合器复用时保持恒定,由光网络单元接收的下行光信号的光强度和 光线路终端包含在动态范围内。 每个光网络单元设置有对于上行光信号和下行光信号是公共的可变光衰减器。 上游光信号和下行光信号衰减相等的衰减。 此外,光线路终端控制可变光衰减器处的衰减。
    • 27. 发明申请
    • Optical communications network, power supply controlling method, station-side equipment, subscriber-side equipment, and semiconductor chip
    • 光通信网络,电源控制方式,站侧设备,用户侧设备和半导体芯片
    • US20110076022A1
    • 2011-03-31
    • US12805770
    • 2010-08-19
    • Hideaki TamaiYasuyuki Kuroda
    • Hideaki TamaiYasuyuki Kuroda
    • H04B10/00
    • H04Q11/0067H04B10/272H04Q11/0071H04Q2011/0049H04Q2011/0079
    • An optical communications network that is composed of one station-side equipment being connected to plural subscriber-side equipments. The station-side equipment refers to downstream data signals and prepares transmission plans, and generates downstream control signals that include the transmission plans, and converts downstream signals, that include the downstream data signals and the downstream control signals to which identifiers indicating the subscriber-side equipments that are addressees are assigned, into downstream optical signals, and sends the downstream optical signals out toward the subscriber-side equipments. The subscriber-side equipment converts downstream optical signals into downstream electric signals, and refers to identifiers and extracts downstream electric signals addressed to itself, and reads the transmission plans, and generates timer control signals including information of receiving start times and receiving stop times, and, on the basis of the timer control signals, opens and closes a path connecting a receiving section and an electricity supply section.
    • 由一个站侧设备连接到多个用户侧设备的光通信网络。 站侧设备是指下行数据信号,准备传输方案,并生成包含传输方案的下行控制信号,并转换下行信号,包括下行数据信号和下行控制信号,标识符表示用户侧 作为地址的设备被分配到下行光信号中,并向用户侧设备发送下行光信号。 用户侧设备将下行光信号转换为下行电信号,并指向标识符并提取寻址到其自身的下行电信号,并读取传输方案,并产生定时控制信号,包括接收开始时间和接收停止时间的信息,以及 基于定时器控制信号,打开和关闭连接接收部分和电力供应部分的路径。
    • 28. 发明申请
    • CDM signal transmitter with modulators reduced in number and a method therefor
    • 具有调制器的CDM信号发射器数量减少及其方法
    • US20100002799A1
    • 2010-01-07
    • US12458190
    • 2009-07-02
    • Hideaki Tamai
    • Hideaki Tamai
    • H04L27/00H04J13/00
    • H04B1/707H04B2201/70707H04J13/0003
    • A code division multiplex signal transmitter includes an operational circuit, a modulator unit and a multiplexer. The operational circuit adds up input transmission data on channels to produce resultant added data and modulates pieces of bit transmission data which are indicative of the values of the respective bits of the added data, when expressed in binary form, the pieces of bit transmission data being equal in number to the M bit positions of the added data expressed in binary form. The modulator unit includes modulators corresponding in number to the M bit positions of the added data in the binary form. A k-th modulator, where k is an integer of 1 to M, inclusive, modulates a k-th piece of bit transmission data to produce a k-th bit modulated signal whose amplitude level is 2k-1. The multiplexer multiplexes first to M-th bit modulated signals to produce a code division multiplex signal.
    • 码分多路复用信号发射机包括操作电路,调制器单元和多路复用器。 操作电路将通道上的输入传输数据相加以产生合成的附加数据,并且调制指示相加数据的各个比特的值的比特传输数据片段,当以二进制形式表示时,该比特传输数据是 数量相等于以二进制形式表示的相加数据的M位位置。 调制器单元包括与二进制形式的相加数据的M位位置相对应的调制器。 第k个调制器,其中k是1到M的整数,包括0和1的整数,调制第k个比特传输数据,以产生幅度为2k-1的第k比特调制信号。 多路复用器将第一到第M位调制信号复用以产生码分多路复用信号。
    • 29. 发明授权
    • Clock regeneration circuit
    • 时钟再生电路
    • US07564286B2
    • 2009-07-21
    • US12073330
    • 2008-03-04
    • Hideaki TamaiMasayuki Kashima
    • Hideaki TamaiMasayuki Kashima
    • H03K3/00
    • H04L7/027H03K19/0002H04L7/0087H04L25/4917
    • 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.
    • 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。