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71. 发明授权

US07539419B2 Optical transmission system for radio access and high frequency optical transmitter 失效
标题翻译：无线电接入光传输系统和高频光发射机
公开(公告)号：US07539419B2
公开(公告)日：2009-05-26
申请号：US12010866
申请日：2008-01-30
申请人： Hiroyuki Sasai , Masaru Fuse
发明人： Hiroyuki Sasai , Masaru Fuse
IPC分类号： H04B10/00 , H04J14/00
CPC分类号： H04B10/25754 , H04B10/25753
摘要： Modulators respectively modulate baseband signals into IF signals having different frequencies. A multiplexer multiplexes the IF signals. An electrical-optical converter intensity modulates the multiplexed IF signals into optical signals. A local oscillation signal source outputs a predetermined local oscillation signal. An external modulator intensity-modulates the optical signal using the local oscillation signal. An optical branching portion branches the intensity-modulated optical signal and respectively outputs branched optical signals to radio base stations. An optical-electrical converter converts the optical signal into an electric signal, to obtain an RF signal by frequency-converting the IF signal. An antenna only transmits a component having a desired radio frequency extracted in a band filter from the RF signal to a subscriber terminal. Frequency conversion from the IF signal to the RF signal is thus optically performed, whereby the frequency or electrical-optical converter is shared among the radio base stations.
摘要翻译：调制器分别将基带信号调制成具有不同频率的IF信号。多路复用器复用IF信号。电光转换器强度将多路复用的IF信号调制成光信号。本地振荡信号源输出预定的本地振荡信号。外部调制器使用本地振荡信号强度调制光信号。光分路部分将强度调制的光信号分支，并将分支的光信号分别输出到无线基站。光电转换器将光信号转换成电信号，通过对IF信号进行频率转换来获得RF信号。天线只将具有从频带滤波器提取的期望射频的分量从RF信号发送到用户终端。因此，从IF信号到RF信号的频率转换被光学地执行，由此在无线电基站之间共享频率或电 - 光转换器。

72. 发明授权

US07349634B2 Optical transmission system for radio access and high frequency optical transmitter 失效
标题翻译：无线电接入光传输系统和高频光发射机
公开(公告)号：US07349634B2
公开(公告)日：2008-03-25
申请号：US11600740
申请日：2006-11-17
申请人： Hiroyuki Sasai , Masaru Fuse
发明人： Hiroyuki Sasai , Masaru Fuse
IPC分类号： H04B10/00 , H04J14/00
CPC分类号： H04B10/25754 , H04B10/25753
摘要： Modulators respectively modulate baseband signals into IF signals having different frequencies. Multiplexers multiplex the IF signals. A local oscillation signal source outputs a predetermined local oscillation signal. An external modulator intensity-modulates an optical signal using the local oscillation signal. An optical branching portion branches the intensity-modulated optical signal. Modulators respectively modulate the multiplexed IF signals onto the branched optical signals and then output the optical signals to radio base stations. Optical-electrical converters convert the optical signals into electric signals and antennas transmit the electrical signals to subscriber terminals.
摘要翻译：调制器分别将基带信号调制成具有不同频率的IF信号。多路复用器对IF信号进行复用。本地振荡信号源输出预定的本地振荡信号。外部调制器使用本地振荡信号强调调制光信号。光分支部分分支强度调制光信号。调制器分别将多路复用的IF信号调制到分支的光信号上，然后将光信号输出到无线电基站。光电转换器将光信号转换为电信号，天线将电信号发送到用户终端。

73. 发明申请

US20080069264A1 Data transmitting apparatus and data receiving apparatus 审中-公开
标题翻译：数据发送装置和数据接收装置
公开(公告)号：US20080069264A1
公开(公告)日：2008-03-20
申请号：US11898288
申请日：2007-09-11
申请人： Tomokazu Sada , Masaru Fuse , Satoshi Furusawa , Tsuyoshi Ikushima , Tomoaki Ohira
发明人： Tomokazu Sada , Masaru Fuse , Satoshi Furusawa , Tsuyoshi Ikushima , Tomoaki Ohira
IPC分类号： H04L25/34
CPC分类号： H04L25/4917 , H04L25/03006
摘要： A data communication apparatus which improves security against eavesdropping is provided for secret communication using Y-00 protocol. A multi-level code generation section 111 generates, based on key information 11, a multi-level code sequence 12 in which signal in which a signal level changes so as to be approximately random numbers. A multi-level processing section 112 combines information data 10 and the multi-level code sequence 12, and generates a multi-level signal 13 having a plurality of levels each corresponding to the combination of the information data 10 and the multi-level code sequence 12. A delayed wave generation section 113 generates, based on a delay profile 19, a delayed wave of the multi-level signal 13, combines the generated delayed wave and the multi-level signal 13, and outputs a multipath signal 20. A modulator section 114 modulates the multipath signal 20 in a predetermined modulation method, and outputs a modulated signal 14.
摘要翻译：提供了一种提高安全性以防窃取的数据通信装置，用于使用Y-00协议的秘密通信。多级代码生成部111基于密钥信息11生成其中信号电平变化为大致随机数的信号的多级代码序列12。多级处理部分112组合信息数据10和多级代码序列12，并且产生具有多个级别的多级信号13，每级都对应于信息数据10和多级代码序列的组合延迟波生成部113基于延迟分布19生成多电平信号13的延迟波，将所生成的延迟波和多电平信号13组合，并输出多径信号20.调制器部分114以预定的调制方式调制多径信号20，并输出调制信号14。

74. 发明申请

US20080056405A1 Data communication apparatus and data communication method 有权
标题翻译：数据通信装置和数据通信方法
公开(公告)号：US20080056405A1
公开(公告)日：2008-03-06
申请号：US11889708
申请日：2007-08-15
申请人： Tomokazu Sada , Masaru Fuse , Satoshi Furusawa , Tsuyoshi Ikushima , Tomoaki Ohira
发明人： Tomokazu Sada , Masaru Fuse , Satoshi Furusawa , Tsuyoshi Ikushima , Tomoaki Ohira
IPC分类号： H04L25/34
CPC分类号： H04L25/4917
摘要： A data communication apparatus which improves security against eavesdropping is provided for secret communication using Y-00 protocol. A 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. A level conversion section 113 irreversibly converts the multi-level code sequence 12 such that a converted multi-level code sequence 19 does not constitute a mapping of the multi-level code sequence 12. A multi-level processing section 112 generates a multi-level signal 13 having a plurality of levels each corresponding to a combination between the information data 10 and the multi-level code sequence 12. A modulator section 114 modulates a multi-level signal 14 in a predetermined modulation method and outputs a modulated signal 15.
摘要翻译：提供了一种提高安全性以防窃取的数据通信装置，用于使用Y-00协议的秘密通信。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。电平转换部分113不可逆地转换多级代码序列12，使得转换的多级代码序列19不构成多级代码序列12的映射。多级处理部分112生成多级代码序列信号13具有多个电平，每个电平分别对应于信息数据10和多电平码序列12之间的组合。调制器部分114以预定的调制方式调制多电平信号14并输出调制信号15。

75. 发明申请

US20080025511A1 Data Communication System 有权
标题翻译：数据通信系统
公开(公告)号：US20080025511A1
公开(公告)日：2008-01-31
申请号：US11664521
申请日：2005-10-05
申请人： Masaru Fuse , Satoshi Furusawa , Tsuyoshi Ikushima , Toru Shiozaki
发明人： Masaru Fuse , Satoshi Furusawa , Tsuyoshi Ikushima , Toru Shiozaki
IPC分类号： H04K1/10 , G06F7/58 , H04L9/00 , H04L9/14 , H04K1/00
CPC分类号： H04K3/825 , H04K1/02 , H04K3/43 , H04K3/44 , H04K3/45 , H04K2203/14 , H04L25/4917
摘要： A data communication system wherein the concealment is enhanced by significantly increasing the time required for the wiretapper to decrypt a cipher text. The data communication system is constituted by connecting a data transmitting apparatus (13105) to a data receiving apparatus (11201) via a transmission path (110). In the data transmitting apparatus (13105), a multilevel encoding part (111) receives a predetermined first initial value (key information) and in formation data and generates a multilevel signal that varies in level substantially in a random number manner. A dummy signal superimposing part (118) superimposes a dummy signal on the multilevel signal. A modulating part (112) converts the multilevel signal to a modulated signal of a predetermined modulation form and transmits the modulated signal. The data receiving apparatus (11201) demodulates the modulated signal so as to output the multilevel signal, and receives a predetermined second initial value (key information) and the multilevel signal so as to reproduce the information data.
摘要翻译：一种数据通信系统，其中通过显着增加窃听者解密密文所需的时间来增强隐藏。数据通信系统通过经由传输路径（110）将数据发送装置（13105）连接到数据接收装置（11201）而构成。在数据发送装置（13105）中，多级编码部（111）接收预定的第一初始值（密钥信息）和接收数据，并生成基本上随机数变化的多级信号。虚拟信号叠加部分（118）将虚拟信号叠加在多电平信号上。调制部分（112）将多电平信号转换为预定调制形式的调制信号并发送调制信号。数据接收装置（11201）解调调制信号以输出多电平信号，并接收预定的第二初始值（密钥信息）和多电平信号，以再现信息数据。

76. 发明申请

US20080019523A1 Data Communication Apparatus 失效
标题翻译：数据通信设备
公开(公告)号：US20080019523A1
公开(公告)日：2008-01-24
申请号：US11661313
申请日：2005-08-31
申请人： Masaru Fuse , Satoshi Furusawa , Tsuyoshi Ikushima , Toru Shiozaki
发明人： Masaru Fuse , Satoshi Furusawa , Tsuyoshi Ikushima , Toru Shiozaki
IPC分类号： H04L9/00 , H04K1/00
CPC分类号： H04L9/088 , H04L9/12 , H04L2209/08
摘要： A data communication apparatus wherein the stealthiness has been enhanced by significantly increasing the time required for a wiretapper to decrypt an encrypted text. The data communication apparatus is constituted by connecting a data transmitting apparatus and a data receiving apparatus via a transmission path. The data transmitting apparatus receives a first predetermined initial value (key information) and information data, generates a multi-valued signal the level of which varies substantially like a random number, and converts the multi-valued signal to a modulated signal of a predetermined modulation format for transmission. The data receiving apparatus demodulates the modulated signal to output the multi-valued signal, and then reproduces the information data from the multi-valued signal and a second predetermined initial value (key information) that is received.
摘要翻译：一种数据通信装置，其中通过显着增加窃听者解密加密文本所需的时间，增强了隐身性。数据通信装置通过经由传输路径连接数据发送装置和数据接收装置构成。数据发送装置接收第一预定初始值（密钥信息）和信息数据，生成其电平基本像随机数变化的多值信号，并将多值信号转换成预定调制信号传输格式。数据接收装置解调调制信号以输出多值信号，然后从多值信号再生信息数据和接收到的第二预定初始值（密钥信息）。

77. 发明申请

US20070201692A1 Data transmission apparatus, data transmission method 审中-公开
标题翻译：数据传输装置，数据传输方式
公开(公告)号：US20070201692A1
公开(公告)日：2007-08-30
申请号：US11699019
申请日：2007-01-29
申请人： Satoshi Furusawa , Masaru Fuse , Tsuyoshi Ikushima , Tomokazu Sada
发明人： Satoshi Furusawa , Masaru Fuse , Tsuyoshi Ikushima , Tomokazu Sada
IPC分类号： H04L9/00
CPC分类号： H04B10/85 , H04B10/505 , H04B10/5055 , H04B10/516 , H04K1/02 , H04L25/4917
摘要： A data communication apparatus which causes the eavesdropper to take a significantly increased time to analyze a cipher text and provides high concealability is provided. In a modulator section 112a, a branching section 114 branches a lightwave 20 outputted from a light source 113, and outputs respective branched lights to a first light path 117 and a second light path 118 respectively having different light path lengths. A light modulator section 116 modulates, based on a multi-level signal 13, a lightwave propagating at least one light path of the first light path 117 and the second light path 118. An interference section 119 causes the lightwaves outputted from the first light path 117 and the second light path 118 to interfere with each other, and outputs such interfered lightwave as a modulated signal 14.
摘要翻译：提供一种数据通信装置，其使得窃听者显着增加时间来分析密文并提供高隐藏性。在调制器部分112a中，分支部分114分支从光源113输出的光波20，并将各自的分支光输出到分别具有不同光路长度的第一光路117和第二光路118。光调制器部分116基于多电平信号13调制传播第一光路117和第二光路118的至少一个光路的光波。干扰部分119使得从第一光路117和第二光路118输出的光波彼此干扰，并且将这种被干扰的光波作为调制信号14输出。

78. 发明申请

US20070172058A1 Data transmitting apparatus and data receiving apparatus 审中-公开
标题翻译：数据发送装置和数据接收装置
公开(公告)号：US20070172058A1
公开(公告)日：2007-07-26
申请号：US11656969
申请日：2007-01-24
申请人： Tomokazu Sada , Masaru Fuse , Satoshi Furusawa , Tsuyoshi Ikushima
发明人： Tomokazu Sada , Masaru Fuse , Satoshi Furusawa , Tsuyoshi Ikushima
IPC分类号： H04N7/167
CPC分类号： H04N7/1675 , H04N21/2347 , H04N21/26613 , H04N21/4405 , H04N21/4623 , H04N21/835
摘要： A data communication apparatus 1 for safely transmitting information data 11 and additional information 14 is provided. In a data transmitting apparatus 101, a random number sequence generating part 111 generates a random number sequence 12 from key information 11. A diffusing part 112 generates diffused additional information 14 by time-diffusing additional information 14. A multi-level signal generating part 113 generates a multi-level signal 16 the signal level of which varies substantially like a random number, based on information data 13, the random number sequence 12, and the diffused additional information 14. In a data receiving apparatus 201, a random number sequence generating part 211 generates a random number sequence 22 from key information 21. An information data decoding part 213 decodes information data 23 and additional information 24 based on the random number sequence 22.
摘要翻译：提供一种用于安全地发送信息数据11和附加信息14的数据通信装置1。在数据发送装置101中，随机数序列生成部111从密钥信息11生成随机数序列12。扩散部分112通过时间扩散附加信息14来生成扩散的附加信息14。多电平信号生成部113基于信息数据13，随机数序列12以及扩散的附加信息14生成信号电平基本上与随机数变化的多电平信号16。在数据接收装置201中，随机数序列生成部211从密钥信息21生成随机数序列22。信息数据解码部分213基于随机数序列22解码信息数据23和附加信息24。

79. 发明授权

US07236701B2 Optical transmission system for performing communication using a plurality of communication lines 失效
标题翻译：用于使用多条通信线进行通信的光传输系统
公开(公告)号：US07236701B2
公开(公告)日：2007-06-26
申请号：US10648428
申请日：2003-08-27
申请人： Toshihiko Yasue , Hiroyuki Sasai , Masaru Fuse
发明人： Toshihiko Yasue , Hiroyuki Sasai , Masaru Fuse
IPC分类号： H04J4/00 , H04J14/00
CPC分类号： H04B10/5059 , H04B10/5057 , H04B10/58 , H04J14/0298 , H04L5/0005 , H04L5/0037 , H04L5/0046 , H04L5/006
摘要： The present invention provides a low-cost optical transmission system using a plurality of subscriber lines which is capable of efficiently utilizing an optical transmission path. A communication status observing section 116 in a transmitting device 1 classifies subscribers into a plurality of groups based on a communication status at each subscriber end, and outputs constellation level information and level information which are different for each group. For each constant cycle, a modulation control section 117 and a gain control section 118 respectively set a QAM constellation level and a signal level which are different for each group and used in a basic modulating section 103.
摘要翻译：本发明提供一种使用多个用户线路的低成本光传输系统，其能够有效地利用光传输路径。发送设备1中的通信状态观察部分116基于每个用户端的通信状态将用户分为多个组，并且输出对于每个组不同的星座级别信息和级别信息。对于每个恒定周期，调制控制部分117和增益控制部分118分别设置在基本调制部分103中用于每个组并且用于基本调制部分103的QAM星座电平和信号电平。

80. 发明申请

US20070058975A1 Optical transmission system for radio access and high frequency optical transmitter 失效
标题翻译：无线电接入光传输系统和高频光发射机
公开(公告)号：US20070058975A1
公开(公告)日：2007-03-15
申请号：US11600740
申请日：2006-11-17
申请人： Hiroyuki Sasai , Masaru Fuse
发明人： Hiroyuki Sasai , Masaru Fuse
IPC分类号： H04J14/00
CPC分类号： H04B10/25754 , H04B10/25753
摘要： Modulators respectively modulate baseband signals into IF signals having different frequencies. A multiplexer multiplexes the IF signals. An electrical-optical converter intensity modulates the multiplexed IF signals into optical signals. A local oscillation signal source outputs a predetermined local oscillation signal. An external modulator intensity-modulates the optical signal using the local oscillation signal. An optical branching portion branches the intensity-modulated optical signal and respectively outputs branched optical signals to radio base stations. An optical-electrical converter converts the optical signal into an electric signal, to obtain an RF signal by frequency-converting the IF signal. An antenna only transmits a component having a desired radio frequency extracted in a band filter from the RF signal to a subscriber terminal. Frequency conversion from the IF signal to the RF signal is thus optically performed, whereby the frequency or electrical-optical converter is shared among the radio base stations.
摘要翻译：调制器分别将基带信号调制成具有不同频率的IF信号。多路复用器复用IF信号。电光转换器强度将多路复用的IF信号调制成光信号。本地振荡信号源输出预定的本地振荡信号。外部调制器使用本地振荡信号强度调制光信号。光分路部分将强度调制的光信号分支，并将分支的光信号分别输出到无线基站。光电转换器将光信号转换成电信号，通过对IF信号进行频率转换来获得RF信号。天线只将具有从频带滤波器提取的期望射频的分量从RF信号发送到用户终端。因此，从IF信号到RF信号的频率转换被光学地执行，由此在无线电基站之间共享频率或电 - 光转换器。

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