公开(公告)号：US08761170B2

公开(公告)日：2014-06-24

申请号：US13512902

申请日：2011-09-14

申请人： Satoru Takagishi ,  Masaru Fuse ,  Yosuke Matsushita

发明人： Satoru Takagishi ,  Masaru Fuse ,  Yosuke Matsushita

IPC分类号： H04L12/56

CPC分类号： H04L61/2532 ,  H04L29/12377 ,  H04L29/12415 ,  H04L61/2517

摘要： A terminal device includes a connection environment check unit, a determination purpose port mapping command unit which issues a port mapping command to a lower layer NAT device, and a determination packet generation unit which generates a determination packet which is source-routed. Additionally, a determination packet transmitting unit transmits the determination packet, a determination packet receiving unit receives the determination packet transmitted from the determination packet transmitting unit, passing through the upper layer NAT device a and the lower layer NAT device a and arriving at the terminal device a, and a port number obtainment unit obtains a WAN-side port number of the lower layer NAT device a indicated in the received determination packet.

摘要翻译： 终端装置包括连接环境检查单元，向下层NAT设备发布端口映射命令的判定目的端口映射命令单元，以及生成源路由的判定包的确定包生成单元。 此外，确定分组发送单元发送确定分组，确定分组接收单元接收从确定分组发送单元发送的通过上层NAT设备a和下层NAT设备a并到达终端设备的确定分组 a和端口号获取单元获取在所接收的确定分组中指示的下层NAT设备a的WAN侧端口号。

公开(公告)号：US08107628B2

公开(公告)日：2012-01-31

申请号：US12127210

申请日：2008-05-27

申请人： Tsuyoshi Ikushima ,  Masaru Fuse ,  Satoshi Furusawa ,  Tomokazu Sada

发明人： Tsuyoshi Ikushima ,  Masaru Fuse ,  Satoshi Furusawa ,  Tomokazu Sada

IPC分类号： H04L29/06

CPC分类号： H04L9/0852 ,  H04L9/0662 ,  H04L2209/08

摘要： A data communication apparatus, performing a secret communication, is provided to reduce a random number generation speed using a plurality of random number generators. The data communication apparatus includes random number generation sections generating random numbers, which are each a multi-level pseudo random number, using predetermined key information includes a multi-level signal modulation section selecting a level, from among multi-levels previously prepared, selected level corresponding to information data and a multi-level sequence, which is composed of a combination of values of the random numbers and generating a multi-level modulated signal including a noise having a predetermined noise level using the selected level. Levels of a multi-level signal are in a range of the noise level, and a signal point allocation is set such that all values which are possibly taken by each of the random numbers are allocated to the plurality of levels of the multi-level signal.

摘要翻译： 提供执行秘密通信的数据通信装置，以使用多个随机数发生器来减少随机数生成速度。 数据通信装置包括随机数生成部分，其生成随机数，其分别是多级伪随机数，使用预定密钥信息，包括从预先准备的多级中选择的级别中选择级别的多级信号调制部分 对应于信息数据和多级序列，其由随机数的值的组合组成，并且使用所选择的电平生成包括具有预定噪声电平的噪声的多电平调制信号。 多电平信号的电平处于噪声电平的范围内，并且设置信号点分配，使得每个随机数可能采用的所有值被分配给多电平信号的多个电平 。

公开(公告)号：US07734185B2

公开(公告)日：2010-06-08

申请号：US11878261

申请日：2007-07-23

申请人： Tomoaki Ohira ,  Kouichi Masuda ,  Masaru Fuse

发明人： Tomoaki Ohira ,  Kouichi Masuda ,  Masaru Fuse

IPC分类号： H04B10/00 ,  H04B10/04

CPC分类号： H04B10/54 ,  H04B10/505 ,  H04B10/5053 ,  H04B10/5161 ,  H04B10/5165 ,  H04B10/548

摘要： An optical SSB-SC modulation section 13 subjects an optical signal fa outputted from an optical source 11 to an optical SSB-SC modulation based on the amplitude of an external electric signal fc to thereby output an optical intensity-modulated signal. An optical phase modulation section 14 subjects the optical signal fa to an optical phase modulation based on the amplitude levels of the first to nth external electric signals having frequencies f1 to fn to thereby output the resultant signal as an optical phase-modulated signal. An optical combining section 15 combines together the optical intensity-modulated signal and the optical phase-modulated signal. An optical detecting section 16 performs an optical homodyne detection through a squared detection of the optical intensity-modulated signal and the optical phase-modulated signal combined together to thereby produce a wideband modulated signal, being the difference beat signal between the two optical signals. A combining section 17 combines together the wideband modulated signal and the oth to tth electric signals having frequencies fo to ft to thereby output the resultant signal as a wideband modulated signal.

摘要翻译： 光SSB-SC调制部13基于外部电信号fc的振幅，对从光源11输出的光信号fa进行光SSB-SC调制，从而输出光强度调制信号。 光相位调制部分14基于具有频率f1至fn的第一至第n外部电信号的幅度电平对光信号fa进行光相位调制，由此输出所得到的信号作为光相位调制信号。 光合成部15将光强度调制信号和光相位调制信号组合在一起。 光学检测部分16通过光学调制信号和光相位调制信号的平方检测进行光学零差检测，从而产生作为两个光信号之间的差拍信号的宽带调制信号。 组合部分17将宽带调制信号和具有频率fo至ft的第th至第th电信号组合在一起，从而将所得到的信号作为宽带调制信号输出。

公开(公告)号：US07441396B2

公开(公告)日：2008-10-28

申请号：US11663170

申请日：2005-09-30

申请人： Masaru Fuse

发明人： Masaru Fuse

IPC分类号： B21L9/06 ,  F16G13/06

CPC分类号： B21L9/065 ,  B21L9/06 ,  F16G5/18 ,  Y10T29/53826

摘要： A method of manufacturing of power transmission chain 1 by interconnecting plural link plates 2 with pins 3. Individual pin pairs 3 are arranged and temporarily fixed to places. The link plates 2 are sequentially stacked in layers by press-fitting respective through-holes 4 of the link plates 2 about the respective pin pairs 3, whereby the link plates 2 are interconnected to form a circular chain (an endless loop). Subsequently, the individual pin pairs 3 are released from the temporarily fixed state. Thus, the manufacture of the power transmission chain 1 is decreased in the number of operation steps, so that the chain may be assembled easily.

摘要翻译： 通过将多个连杆2与销3相互连接来制造动力传递链1的方法。 单独的销对3被布置并临时固定到位置。 通过将链板2的相应的通孔4压在相应的销对3上，连接板2依次层叠，由此连接板2互连以形成圆形链（无限循环）。 随后，各个针对3从临时固定状态释放。 因此，动力传递链1的制造在操作步骤的数量上减少，使得可以容易地组装链条。

公开(公告)号：US20080240734A1

公开(公告)日：2008-10-02

申请号：US11660155

申请日：2005-07-26

申请人： Masaru Fuse

发明人： Masaru Fuse

IPC分类号： H04B10/12

CPC分类号： H04J14/005 ,  H04B10/2581 ,  H04B10/502 ,  H04J14/02

摘要： An optical transmitting circuit (2) modulates multimode oscillation light using an information signal, subjects at least one oscillation-mode light beam of the multimode oscillation light to a predetermined operation, and outputting the result to an optical transmission channel. An optical receiving circuit (8) receives an optical signal transmitted through the optical transmission channel, subjects the received optical signal to an operation reverse to the predetermined operation to recover an optical signal as it was before being subjected to the predetermined operation, and converting the recovered optical signal into an electrical signal, thereby reproducing the information signal.

摘要翻译： 光发射电路（2）使用信息信号调制多模式振荡光，使多模振荡光的至少一个振荡模式光束进行预定的操作，并将结果输出到光传输通道。 光接收电路（8）接收通过光传输通道发送的光信号，使接收到的光信号与预定操作相反的操作，以便在经受预定操作之前恢复光信号，并将 将光信号恢复为电信号，从而再现信息信号。

公开(公告)号：US20080106780A1

公开(公告)日：2008-05-08

申请号：US11935744

申请日：2007-11-06

申请人： Tsutomu Niiho ,  Kouichi Masuda ,  Masaru Fuse ,  Fumio Fujisaki ,  Kuniharu Itakura ,  Tomoaki Ohira

发明人： Tsutomu Niiho ,  Kouichi Masuda ,  Masaru Fuse ,  Fumio Fujisaki ,  Kuniharu Itakura ,  Tomoaki Ohira

IPC分类号： G02F1/03

CPC分类号： G02F1/225 ,  G02F1/0123 ,  G02F2001/212

摘要： An optical modulator comprises an electrode 21 which applies to an optical waveguides 12 of a Mach-Zehnder type optical interference system a first electric signal based on an alternating current signal S1 and a direct current bias V1, an electrode 22 which applies to an optical waveguide 13 of the Mach-Zehnder type optical interference system a second electric signal based on an alternating current signal S2 and a direct current bias V2, and a bias setting section 41 which sets average direct current levels of the first and second electric signals based on signal frequency information D1 which indicates a magnitude relation between a maximum frequency of the alternating current signal S1 and a maximum frequency of the alternating current signal S2.

摘要翻译： 光调制器包括电极21，电极21基于交流电信号S1和直流偏压V 1施加马赫 - 策德尔型光学干涉系统的光波导12，第一电信号适用于 马赫曾德尔型光学干涉系统的光波导13基于交流信号S 2和直流偏压V 2的第二电信号，以及偏置设定部41，其设定第一和第二电气的平均直流电平 基于表示交流信号S 1的最大频率与交流信号S2的最大频率之间的大小关系的信号频率信息D 1的信号。

公开(公告)号：USRE40270E1

公开(公告)日：2008-04-29

申请号：US11014665

申请日：2004-12-17

申请人： Toru Shiozaki ,  Masaru Fuse

发明人： Toru Shiozaki ,  Masaru Fuse

IPC分类号： H04B10/12 ,  H01S3/00 ,  G01N21/01 ,  G02B21/34

CPC分类号： H04B10/296

摘要： An optical brancher branches an input optical signal into two. An optical detector converts one optical signal branched by the optical brancher into an electrical signal. A first controller generates a control electrical signal having a waveform obtained by inverting the envelope of the electrical signal. Based on the control electrical signal, an optical signal generator produces a dummy optical signal having a waveform λd and an amplitude α/2. The other signal branched by the optical brancher is delayed by a delay unit for a predetermined time, and then multiplexed by an optical multiplexer with the dummy optical signal from the optical signal generator. An optical amplifier amplifies amultiplexed optical signal. An optical filter separates an optical signal of a wavelength λ1 from the amplified optical signal. Thus, optical signal amplification can be carried out without optical surges.

摘要翻译： 光分支器将输入光信号分为两个。 光检测器将由光分支器分支的一个光信号转换为电信号。 第一控制器产生具有通过反转电信号的包络而获得的波形的控制电信号。 基于控制电信号，光信号发生器产生具有波形lambdad和幅度α/ 2的虚拟光信号。 由光分支器分支的另一信号由延迟单元延迟预定时间，然后由光复用器与来自光信号发生器的伪光信号进行多路复用。 光放大器放大复用光信号。 光学滤波器将波长λ1的光信号与放大的光信号分离。 因此，可以在没有光学波动的情况下进行光信号放大。

公开(公告)号：US20080063208A1

公开(公告)日：2008-03-13

申请号：US11665684

申请日：2005-11-04

申请人： Tsuyoshi Ikushima ,  Satoshi Furusawa ,  Masaru Fuse

发明人： Tsuyoshi Ikushima ,  Satoshi Furusawa ,  Masaru Fuse

IPC分类号： H04L9/08 ,  H04L9/28

CPC分类号： H04L25/4917 ,  H04K1/02 ,  H04L9/0852 ,  H04L2209/08

摘要： A data communication system is provided in which a time required for a wiretapper to decrypt an encrypted text is significantly increased so that concealment is improved. In a data transmitting apparatus (17105), a multilevel encoding part (111) switches a plurality of key information to generate a multilevel code sequence in which the average values of signal levels are different, and then combines the generated multilevel code sequence with information data to generate a multilevel signal having a level corresponding to the combination of the two signal levels. A light modulating part (125) converts the multilevel signal into a modulated signal of a predetermined modulation scheme and transmits it. In a data receiving apparatus (17205), a light demodulating part (219) demodulates the received modulated signal into the multilevel signal. A multilevel decoding part (212) switches a plurality of key information to generate a multilevel code sequence in which the average values of signal levels are different, and then identifies the multilevel signal based on this generated multilevel code sequence to regenerate the information data.

摘要翻译： 提供了一种数据通信系统，其中窃听者解密加密文本所需的时间显着增加，从而改善了隐藏。 在数据发送装置（17105）中，多级编码部（111）切换多个密钥信息，生成信号电平的平均值不同的多级代码序列，然后将生成的多级代码序列与信息数据 以产生具有与两个信号电平的组合相对应的电平的多电平信号。 光调制部分（125）将多电平信号转换为预定调制方案的调制信号并将其发送。 在数据接收装置（17205）中，光解调部（219）将接收到的调制信号解调为多电平信号。 多级解码部分（212）切换多个密钥信息以产生其中信号电平的平均值不同的多级代码序列，然后基于该生成的多级代码序列来识别多级信号以再生信息数据。

公开(公告)号：US20080063109A1

公开(公告)日：2008-03-13

申请号：US11882250

申请日：2007-07-31

申请人： Tsuyoshi Ikushima ,  Satoshi Furusawa ,  Tomokazu Sada ,  Masaru Fuse ,  Tomoaki Ohira

发明人： Tsuyoshi Ikushima ,  Satoshi Furusawa ,  Tomokazu Sada ,  Masaru Fuse ,  Tomoaki Ohira

IPC分类号： H04L25/34

CPC分类号： H04L25/4917

摘要： A data transmitting apparatus which improves security against eavesdropping is provided for secret communication using Y-00 protocol. The multi-level code generation section 111 generates, based on key information 11, a multi-level code sequence 12 in which a signal level changes so as to be approximately random numbers. The multi-level processing section 112 generates a multi-level signal 13 having a level which corresponds to a combination between information data 10 and the multi-level code sequence 12. The error signal generation section 113 generates an error signal 21 which changes randomly. The accumulation section 114 accumulates the error signal 21, and outputs an accumulated error signal 22. The adding section 116 adds the accumulated error signal 22 to the multi-level signal 13, and outputs a variable multi-level signal 23. The modulator section 117 modulates the variable multi-level signal 23, and outputs a modulated signal 14.

摘要翻译： 提供了使用Y-00协议进行秘密通信的提高针对窃听的安全性的数据发送装置。 多级代码生成部111基于密钥信息11生成信号电平变化为近似随机数的多级代码序列12。 多级处理部分112产生具有对应于信息数据10和多级代码序列12之间的组合的级别的多级信号13。 误差信号生成部113生成随机变化的误差信号21。 累加部分114累积误差信号21，并输出累积误差信号22。 加法部116将积分误差信号22加到多电平信号13，并输出可变多电平信号23。 调制部117对可变多电平信号23进行调制，输出调制信号14。

公开(公告)号：US20080031630A1

公开(公告)日：2008-02-07

申请号：US11878261

申请日：2007-07-23

申请人： Tomoaki Ohira ,  Kouichi Masuda ,  Masaru Fuse

发明人： Tomoaki Ohira ,  Kouichi Masuda ,  Masaru Fuse

IPC分类号： H04B10/00 ,  H04B10/04 ,  H04B10/08

CPC分类号： H04B10/54 ,  H04B10/505 ,  H04B10/5053 ,  H04B10/5161 ,  H04B10/5165 ,  H04B10/548

摘要： An optical SSB-SC modulation section 13 subjects an optical signal fa outputted from an optical source 11 to an optical SSB-SC modulation based on the amplitude of an external electric signal fc to thereby output an optical intensity-modulated signal. An optical phase modulation section 14 subjects the optical signal fa to an optical phase modulation based on the amplitude levels of the first to nth external electric signals having frequencies f1 to fn to thereby output the resultant signal as an optical phase-modulated signal. An optical combining section 15 combines together the optical intensity-modulated signal and the optical phase-modulated signal. An optical detecting section 16 performs an optical homodyne detection through a squared detection of the optical intensity-modulated signal and the optical phase-modulated signal combined together to thereby produce a wideband modulated signal, being the difference beat signal between the two optical signals. A combining section 17 combines together the wideband modulated signal and the oth to tth electric signals having frequencies fo to ft to thereby output the resultant signal as a wideband modulated signal.

摘要翻译： 光SSB-SC调制部13基于外部电信号fc的振幅，对从光源11输出的光信号fa进行光SSB-SC调制，从而输出光强度调制信号。 光相位调制部分14基于具有频率f 1至f n的第一至第n外部电信号的振幅电平使光信号fa进行光相位调制，从而将所得信号输出为 光相位调制信号。 光合成部15将光强度调制信号和光相位调制信号组合在一起。 光学检测部分16通过光学调制信号和光相位调制信号的平方检测进行光学零差检测，从而产生作为两个光信号之间的差拍信号的宽带调制信号。 组合部分17将具有频率fo至ft的宽带调制信号和第个电信号组合在一起，从而输出所得到的信号作为宽带调制信号。