公开(公告)号：US06414796B1

公开(公告)日：2002-07-02

申请号：US09701808

申请日：2000-12-01

申请人： Takashi Muromachi ,  Masanobu Kimura ,  Satoshi Furusawa

发明人： Takashi Muromachi ,  Masanobu Kimura ,  Satoshi Furusawa

IPC分类号： G02B2714

CPC分类号： B32B17/10036 ,  B32B17/10146 ,  B32B17/10761 ,  G02B27/0018 ,  G02B27/0101 ,  G02B2027/012 ,  G02B2027/0121 ,  Y10T428/187 ,  Y10T428/24479

摘要： For prevention of ghost images from occurring on head-up displays, a glass surface is ground, and a reflecting surface with a wedge-shaped cross section is formed. Furthermore, in order to reduce optical distortion at the edge portion of the reflecting surface, a ground surface contacting the reflecting surface with an angle between 150° and 210° is formed. In accordance with the enlargement of the reflecting surface accompanied by the tendency of head-up displays becoming larger, the reflecting surface is divided into at least two regions, and the angle of the reflecting surface is optimized for each region.

摘要翻译： 为了防止在平视显示器上发生重影，玻璃表面被研磨，形成具有楔形横截面的反射表面。 此外，为了降低反射面的边缘部的光学变形，形成与反射面接触的角度为150°〜210°的接地面。 根据伴随着平视显示的趋势变大的反射面的扩大，将反射面分割为至少两个区域，并且对于每个区域优化反射面的角度。

公开(公告)号：US08824892B2

公开(公告)日：2014-09-02

申请号：US13537567

申请日：2012-06-29

申请人： Hideaki Tamai ,  Satoshi Furusawa ,  Akiya Suzuki

发明人： Hideaki Tamai ,  Satoshi Furusawa ,  Akiya Suzuki

IPC分类号： H04B10/00 ,  H04L12/28 ,  H04L12/12 ,  H04B10/272

CPC分类号： H04B10/272 ,  H04L12/12 ,  H04L12/2861 ,  H04L12/287 ,  Y02D50/40

摘要： In an optical line terminal connectable to optical network units in an optical communication network, an receiver converts an upstream optical signal, received from an optical network unit, into a corresponding upstream electric signal and then derives an upstream control signal controlling the optical line terminal from the upstream electric signal. A controller generates a power control signal switching on or off power supply to the receiver on the basis of the upstream control signal, and a power feeder switches on or off the power supply to the receiver in response to the power control signal. Thus, the optical line terminal can reduce the waste of standby electricity.

摘要翻译： 在连接光通信网络中的光网络单元的光线路终端中，接收机将从光网络单元接收到的上行光信号转换成对应的上行电信号，然后将控制光线路终端的上行控制信号 上游电信号。 控制器基于上游控制信号产生接收或接通电源的功率控制信号，并且电源馈送器根据功率控制信号接通或关断接收机的电源。 因此，光线路终端可以减少备用电力的浪费。

公开(公告)号：US07912215B2

公开(公告)日：2011-03-22

申请号：US11655981

申请日：2007-01-22

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： H04L9/22 ,  H04K1/00

CPC分类号： H04L25/4917 ,  H04K1/02 ,  H04L1/0041 ,  H04L1/0045

摘要： A data transmitting apparatus generates, by using predetermined first key information and information data, a multi-level signal in which a signal level changes so as to be approximately random numbers, and converts the multi-level signal into a modulated signal, in a predetermined modulation method and transfer the same. A data receiving apparatus demodulates the modulated signal so as to be converted into a multi-level signal, and reproduces information data from the multi-level signal, using second key information which has the same content as first key information used by the data transmitting apparatus.

摘要翻译： 数据发送装置通过使用预定的第一密钥信息和信息数据生成信号电平变化为大致随机数的多电平信号，并将多电平信号转换为调制信号，以预定的 调制方式和转移相同。 数据接收装置对调制信号进行解调，以便将其转换为多电平信号，并使用与数据发送装置使用的第一密钥信息相同内容的第二密钥信息从多级信号再现信息数据 。

公开(公告)号：US07835524B2

公开(公告)日：2010-11-16

申请号：US11702053

申请日：2007-02-05

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

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

IPC分类号： H04L9/26 ,  H04L27/04

CPC分类号： H04L9/0662 ,  H04L2209/125

摘要： A highly concealable data communication apparatus based on an astronomical complexity and causing an eavesdropper to take a significantly increased time to analyze a cipher text, is provided. In a multi-level code generation section 111a, a random number sequence generation section 141 generates, based on predetermined key information 11, a plurality of modulation pseudo-random number sequences. The plurality of modulation pseudo-random number sequences is inputted to a multi-level conversion section 142 as a part of an input bit sequence which is converted into a multi-level code sequence 12. A multi-level processing section 111b combines the multi-level code sequence 12 and information data 10, and generates a multi-level signal 13 having a plurality of levels corresponding to a combination of the multi-level code sequence 12 and the information data 10.

摘要翻译： 提供了一种基于天文复杂性并使窃听者大幅度增加分析密文的时间的高度可隐藏的数据通信装置。 在多级代码生成部111a中，随机数序列生成部141基于规定的密钥信息11生成多个调制伪随机数序列。 多个调制伪随机数序列作为输入比特序列的一部分被输入到多电平转换部分142，该输入比特序列被转换成多级码序列12.多级处理部分111b将多级调制伪随机数序列 电平代码序列12和信息数据10，并且生成具有与多级代码序列12和信息数据10的组合对应的多个级别的多级信号13。

公开(公告)号：US20090323852A1

公开(公告)日：2009-12-31

申请号：US12127393

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： H04L25/49

CPC分类号： H04L9/0852 ,  H04L9/0838

摘要： To provide a receiving apparatus which is capable of demodulating information data from a multi-level modulated signal, which is generated by using a Y-00 protocol, without using high-performance component parts. In the receiving apparatus, the soft decision section 211 performs soft decision on the multi-level signal 22, in which a fixed decision level is used. A converted data identification section 214 performs logical decision on a value of the converted information data 25 in accordance with a highest-order bit of a multi-level code sequence 23 and a decision result 24 of the soft decision. A data reproduction section 215 performs an XOR operation between the converted information data 25 and a lowest-order bit of the multi-level code sequence 23, and outputs a resultant thereof as information data 23. Accordingly, the receiving apparatus identifies the information data 23 by using only some of the bits of the multi-level code sequence 23, whereby precision requirements for the component parts to be used can be eased.

摘要翻译： 提供一种能够通过使用Y-00协议产生的多电平调制信号来解调来自不使用高性能组件的信息数据的接收装置。 在接收装置中，软判决部分211对使用固定判定级别的多电平信号22执行软判决。 转换数据识别部分214根据多级代码序列23的最高位和软判决的判定结果24对转换的信息数据25的值进行逻辑判定。 数据再现部分215在转换的信息数据25和多级代码序列23的最低位之间执行XOR运算，并将其结果作为信息数据23输出。因此，接收装置识别信息数据23 通过仅使用多级代码序列23的一些比特，由此能够减轻要使用的组成部分的精度要求。

公开(公告)号：US20080247547A1

公开(公告)日：2008-10-09

申请号：US11889469

申请日：2007-08-14

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

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

IPC分类号： H04L9/20

CPC分类号： H04L9/065 ,  H04L2209/08 ,  H04L2209/12 ,  H04L2209/34

摘要： A data communication apparatus which improves security against eavesdropping is provided for secret communication using Y-00 protocol. In a data transmitting apparatus 101, 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 multi-level processing section 112 generates a multi-level signal 13 having a plurality of levels each corresponding to a combination between information data 10 and the multi-level code sequence 12. A level conversion section 113 divides the plurality of levels of the multi-level signal 13 into several groups, and allocates one level of a converted multi-level signal 21 to a plurality of levels included in each of the several groups in an overlapped manner. The level conversion section 113 then converts the multi-level signal 13 into the converted multi-level signal 21. A modulator section 114 modulates the converted multi-level signal 21 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。 在数据发送装置101中，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12之间的组合。 电平转换部分113将多电平信号13的多个电平分为若干组，并且以重叠的方式将包含在多个组中的每个组中的多个电平分配一个转换的多电平信号21。 电平转换部分113然后将多电平信号13转换成转换的多电平信号21。 调制器部分114调制转换的多电平信号21并输出调制信号14。

公开(公告)号：US06865156B2

公开(公告)日：2005-03-08

申请号：US09876918

申请日：2001-06-11

申请人： Kazuyuki Horioka ,  Satoshi Furusawa ,  Hideki Ohashi ,  Haruki Uchida

发明人： Kazuyuki Horioka ,  Satoshi Furusawa ,  Hideki Ohashi ,  Haruki Uchida

IPC分类号： H04M3/36 ,  H04J3/14 ,  H04J3/16 ,  H04J3/18 ,  H04L12/28 ,  H04L12/801 ,  H04L12/877 ,  H04L12/911 ,  H04L12/917

CPC分类号： H04L47/822 ,  H04L12/5601 ,  H04L12/5602 ,  H04L47/20 ,  H04L47/22 ,  H04L47/41 ,  H04L47/70 ,  H04L47/828 ,  H04L2012/5631 ,  H04L2012/5636 ,  Y02D50/30

摘要： In a communication network in which a group of connections has an assigned group bandwidth and each connection in the group has a minimum bandwidth, bandwidth usage is controlled by calculating the total current bandwidth allowed to the group, subtracting the total current bandwidth from the assigned group bandwidth, and adding the difference to each connection's current bandwidth allowance to calculate an explicit rate, according to which the connection's bandwidth allowance is controlled. The explicit rate is altered to a minimum explicit rate when, for example, the total bandwidth exceeds the group bandwidth. The minimum explicit rate of each connection is preferably calculated on the basis of the sum of the minimum bandwidths of the active connections in the group. These measures improve the fairness of bandwidth usage control.

摘要翻译： 在其中一组连接具有分配的组带宽并且组中的每个连接具有最小带宽的通信网络中，通过计算允许到该组的总电流带宽来控制带宽使用，从该分配组中减去总电流带宽 带宽，并将差异添加到每个连接的当前带宽容限以计算显式速率，根据该限制，连接的带宽容限被控制。 当例如总带宽超过组带宽时，显式速率被改变为最小显式速率。 优选地，基于组中活动连接的最小带宽之和来计算每个连接的最小显示速率。 这些措施提高了带宽使用控制的公平性。

公开(公告)号：US06765177B2

公开(公告)日：2004-07-20

申请号：US10351192

申请日：2003-01-24

申请人： Tatsuya Noguchi ,  Satoshi Furusawa

发明人： Tatsuya Noguchi ,  Satoshi Furusawa

IPC分类号： B60L102

CPC分类号： C03C17/3673 ,  B32B17/10036 ,  B32B17/10174 ,  B32B17/10348 ,  B32B17/10761 ,  B32B17/10807 ,  C03C17/36 ,  C03C2217/948 ,  H05B3/84 ,  H05B3/86 ,  H05B2203/013 ,  H05B2203/016

摘要： The present invention provides a laminated glass sheet for windshield that includes a transparent conductive film and enables ITS communication. The laminated glass sheet includes a first bus-bar aranged along an upper end of the laminated glass sheet, and a second bus-bar arranged along a lower end of the laminated glass sheet, and the first busbar includes a protruding portion that extends toward the second bus-bar, and the transparent conductive film is not formed in a concave portion that is formed by the protruding portion. Since the concave portion can be used for the communication, the conductive film may be free from an opening.

摘要翻译： 本发明提供了一种用于挡风玻璃的夹层玻璃板，其包括透明导电膜并且能够进行ITS连通。 夹层玻璃板包括沿夹层玻璃板的上端排列的第一母线和沿夹层玻璃板的下端布置的第二母线，第一母线包括朝向 第二汇流条，并且透明导电膜不形成在由突出部形成的凹部中。 由于凹部可以用于连通，所以导电膜可以没有开口。

公开(公告)号：US06512621B1

公开(公告)日：2003-01-28

申请号：US09140658

申请日：1998-08-26

申请人： Masaru Fuse ,  Kuniaki Utsumi ,  Satoshi Furusawa

发明人： Masaru Fuse ,  Kuniaki Utsumi ,  Satoshi Furusawa

IPC分类号： H04B1004

CPC分类号： H03C3/00

摘要： A branch portion 101 branches an inputted electrical signal into an in-phase signal and an opposite phase signal which have an opposite relation as to a phase. A first FM laser 104 converts the in-phase signal into an optical frequency-modulated signal (a first optical signal) having a center wavelength &lgr;1 and then outputs the resultant signal. A second FM laser 105 converts the opposite phase signal into an optical frequency-modulated signal (a second signal) having a center wavelength &lgr;2 and then outputs the resultant signal. The two optical signals are combined and then inputted into an optical-electrical converting portion 106. The optical-electrical converting portion 106 subjects the inputted optical signals to optical heterodyne detection by its square-law detection characteristic, and outputs a beat signal between the two optical signals which is a wide-band FM signal at a frequency corresponding to a wavelength difference &Dgr;&lgr;(=|&lgr;1−&lgr;2|) between the first optical signal and the second optical signal. It is thus possible to increase frequency deviation of the outputted FM signal and thus greatly improve a CNR.

摘要翻译： 分支部101将输入的电信号分支成与相位相反的同相信号和相反相位信号。 第一FM激光器104将同相信号转换成具有中心波长lambd1的光调制信号（第一光信号），然后输出所得到的信号。 第二FM激光器105将相反相位信号转换成具有中心波长lambd2的光频调制信号（第二信号），然后输出所得到的信号。 两个光信号被组合，然后输入到光电转换部分106.光电转换部分106通过其平方律检测特性使输入的光信号进行光外差检测，并且在两个光电转换部分106之间输出拍频信号 光信号是与第一光信号和第二光信号之间的波长差DELTAlambd（= | lambd1-lambd2 |）对应的频率的宽带FM信号。 因此，可以增加输出的FM信号的频率偏差，从而大大提高CNR。

公开(公告)号：US5539846A

公开(公告)日：1996-07-23

申请号：US410313

申请日：1995-03-24

申请人： Susumu Morikura ,  Satoshi Furusawa ,  Hideaki Takechi

发明人： Susumu Morikura ,  Satoshi Furusawa ,  Hideaki Takechi

IPC分类号： H03G3/02 ,  H03M9/00 ,  H04J3/06 ,  H04J14/00 ,  H04J14/04 ,  H04J14/06 ,  H04L7/00 ,  H04L25/49 ,  G02B6/28

CPC分类号： H04J3/0623

摘要： A parallel signal transmission system for transmitting parallel signals from a transmission unit to a reception unit via an optical fiber, at a low cost without spoiling their quality. The transmission unit converts received parallel signals into serial signals frame by frame, by means of a frame sync signal, and further converts the serial signals into direct current equilibrium signals which are either CMI codes or DMI codes. At the same time, the direct current equilibrium signals are multiplexed with the frame sync signal in accordance with the code ruling violation in order to drive a laser diode having a 0.78 .mu.m wavelength and output intensity-modulated optical signals to the optical transmission path. As the optical transmission path, a plastic clad fiber is used whose core diameter is 200 .mu.m or larger in order to agree with the laser diode having a 0.78 .mu.m wavelength. In the reception unit, the optical signals are photo/electric converted by means of a silicone photo diode, amplified into direct current equilibrium signals having a predetermined amplitude by means of an alternating current coupling type amplifier. The amplified direct current equilibrium signals are divided into serial signals and the frame sync signal by detecting a coding rule violation, and reproduced into original parallel signals by using the divided frame sync signal.

摘要翻译： 一种并行信号传输系统，用于以低成本从光传输单元传输并行信号到接收单元，而不会损害其质量。 传输单元通过帧同步信号逐帧将接收到的并行信号转换为串行信号，并将串行信号转换为CMI码或DMI码的直流平衡信号。 同时，直流平衡信号根据代码规则违规与帧同步信号多路复用，以驱动具有0.78μm波长的激光二极管，并向光传输路径输出强度调制的光信号。 作为光传输路径，使用芯直径为200μm以上的塑料包层光纤，以符合0.78μm波长的激光二极管。 在接收单元中，通过硅光电二极管对光信号进行光电转换，通过交流耦合型放大器放大成具有预定幅度的直流平衡信号。 放大的直流平衡信号通过检测编码规则违反而被分成串行信号和帧同步信号，并通过使用划分的帧同步信号再现成原始的并行信号。