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1. 发明专利

JP2007300515A Quantum cryptographic communication device, communication terminal, and additional information transmission method 有权
标题翻译：量子通信设备，通信终端和附加信息传输方法
公开(公告)号：JP2007300515A
公开(公告)日：2007-11-15
申请号：JP2006128075
申请日：2006-05-02
申请人： Sony Corp , ソニー株式会社
发明人： SHINO KUNINORI , KAWAMOTO YOHEI , UKITA SHOICHI
IPC分类号： H04L9/12 , H04B10/516 , H04B10/556 , H04B10/61 , H04B10/70
摘要： PROBLEM TO BE SOLVED: To transmit additional information such as a frame synchronization signal well from a transmitter-side terminal to a receiver-side terminal. SOLUTION: A pulse light from a light source 33 is divided into a signal light P1 and a reference light P2 by the transmitter-side terminal 30 and then the divided lights are sent out to a communication path 32. In quantum cryptographic communications, the light intensity of the signal light P1 is attenuated, but in the additional information transmission, the light intensity of the signal light P1 is not attenuated. In quantum cryptographic communications, random phase modulation is added to the signal light P1 per pulse so that the signal light P1 may have a predetermined phase selected among phases which constitute a plurality of bases. But, in the additional information transmission, the signal light P1 is made to have a phase which is not orthogonal to any of the plurality of phases which constitute the plurality of bases. In the additional information transmission, large level additional information is obtained as a homodyne detection output of the receiver-side terminal 31. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：从发射机侧终端向接收机侧终端良好地发送诸如帧同步信号的附加信息。解决方案：来自光源33的脉冲光被发射机侧终端30分成信号光P1和参考光P2，然后将分光发送到通信路径32.在量子加密通信信号光P1的光强度被衰减，但是在附加信息传输中，信号光P1的光强度不被衰减。在量子密码通信中，随机相位调制被添加到每个脉冲的信号光P1，使得信号光P1可以具有从构成多个基底的相位中选择的预定相位。但是，在附加信息发送中，使信号光P1具有与构成多个基底的多个相位中的任一个不正交的相位。在附加信息传输中，获得作为接收机侧终端31的零差检测输出的大级附加信息。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2007088776A Phase information generation device and phase information generation method, transmitter and receiver 有权
标题翻译：相位信息生成装置和相位信息生成方法，发射机和接收机
公开(公告)号：JP2007088776A
公开(公告)日：2007-04-05
申请号：JP2005274548
申请日：2005-09-21
申请人： Sony Corp , ソニー株式会社
发明人： SHINO KUNINORI , UKITA SHOICHI , KAWAMOTO YOHEI
IPC分类号： H04L27/20 , H04B10/2507 , H04B10/556 , H04B10/588
摘要： PROBLEM TO BE SOLVED: To transmit an n-value multivalue signal with less noise without using a complicated synchronous circuit. SOLUTION: Phase continuous optical signals Sop outputted from a light source 101 are made to impinge on a phase modulator 102. Input serial data Din are supplied from an input terminal 105 to a signal phase converter 104, and a clock CL synchronizing with each bit of the data Din is inputted from the input terminal 106 to the signal phase converter 104. The signal phase converter 104 creates phase information Ipm for obtaining phase modulating signals corresponding to data A of (m+1) bits that are converted from data M (multi-valued signals of n-ary) of m bits obtained by grouping the data Din into m bits and changed in value for each one clock, and outputs a control voltage Vct that is furthermore converted from the phase information Ipm. The phase modulator 102 phase-modulates the optical signals Sop on the basis of the control voltage Vct. The phase-modulated signals Spm outputted from the phase modulator 102 are transmitted to a receiving end through an optical fiber 103. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：在不使用复杂的同步电路的情况下传输噪声较小的n值多值信号。解决方案：使从光源101输出的相位连续光信号Sop撞在相位调制器102上。输入串行数据Din从输入端105提供给信号相位转换器104，时钟CL与数据Din的每一位从输入端子106输入到信号相位转换器104.信号相位转换器104产生相位信息Ipm，用于获得与从数据转换的（m + 1）位的数据A相对应的相位调制信号通过将数据Din分组为m位并且每个时钟变化的值获得的M位的M位（n值的多值信号），并且输出进一步从相位信息Ipm转换的控制电压Vct。相位调制器102基于控制电压Vct对光信号Sop进行相位调制。从相位调制器102输出的相位调制信号Spm通过光纤103发送到接收端。（C）2007年，JPO和INPIT

3. 发明专利

JP2003069589A Network system, addressing method, communication controller and its method 有权
标题翻译：网络系统，寻址方法，通信控制器及其方法
公开(公告)号：JP2003069589A
公开(公告)日：2003-03-07
申请号：JP2001256851
申请日：2001-08-27
申请人： Sony Corp , ソニー株式会社
发明人： KIMURA NORIHIKO , SHINO KUNINORI , KURE YOSHINOBU
IPC分类号： H04L12/44 , H04L12/24
CPC分类号： H04L41/12
摘要： PROBLEM TO BE SOLVED: To suggest a network system, an addressing method, communication controller and its method with simple configurations having no effect onto network nodes associated with the increase and decrease of nodes.
SOLUTION: For each node, the first storage means to store the first information indicating all the node identifiers used within a network and the second storage means to store the second information indicating node identifiers of all the nodes connected directly or indirectly to the relevant port for each port are provided so that when a new node is connected to the network, a predetermined primary node grants a node identifier to the new node and supplies the associated predetermined notification to other needed nodes, and that when a node is separated from the network, a predetermined secondary node remaining in the network supplies the associated predetermined notification to other nodes.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提出网络系统，寻址方法，通信控制器及其方法，其简单配置对与节点增加和减少相关联的网络节点没有影响。解决方案：对于每个节点，第一存储装置存储指示在网络中使用的所有节点标识符的第一信息，第二存储装置存储指示直接或间接连接到相关端口的所有节点的节点标识符的第二信息，提供每个端口，使得当新节点连接到网络时，预定的主节点向新节点授予节点标识符，并将相关联的预定通知提供给其他所需节点，并且当节点与网络分离时，网络中剩余的预定次要节点将相关联的预定通知提供给其他节点。

4. 发明专利

JP2007251679A Quantum encryption communication apparatus 有权
标题翻译：量子加密通信设备
公开(公告)号：JP2007251679A
公开(公告)日：2007-09-27
申请号：JP2006073450
申请日：2006-03-16
申请人： Sony Corp , ソニー株式会社
发明人： KAWAMOTO YOHEI , HIRANO TAKUYA , SHINO KUNINORI , UKITA SHOICHI
IPC分类号： H04L9/12 , H04B10/516 , H04B10/548 , H04B10/61 , H04B10/70
摘要： PROBLEM TO BE SOLVED: To improve tolerance to a wiretapper by suppressing a loss of a reference light and decreasing an excessive noise ratio in homodyne detection.
SOLUTION: A quantum encryption communication apparatus 100 consists of a transmitter side terminal 1, a receiver side terminal 2, and a communication path 3. A reference light (pulse light P2) having a comparatively high strength and a weak signal light (pulse light P1) in which phase modulation is randomly applied per pulse are transmitted from the terminal 1 to the terminal 2. In the terminal 2, the reference light is subjected to random phase modulation per pulse, and then, homodyne detection is executed on the basis of the reference light and the signal light to acquire secret information, e. g. a secret key. In the terminal 2, a processing start timing of a phase modulator 7 is controlled on the basis of a synchronization signal to be supplied from a signal transmission source 17 for supplying a synchronization signal to the light source 4, and in the terminal 1, a detector 26 detects the arrival of the signal light to control a processing start timing of a phase modulator 21 on the basis of a leakage light from a variable attenuator 19.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过抑制参考光的损失并降低零差检测中的过大的噪声比来提高对窃听器的容忍度。量子加密通信装置100由发射机侧终端1，接收机侧终端2和通信路径3组成。具有较高强度的参考光（脉冲光P2）和弱信号光（脉冲光P1）从终端1发送到终端2.在终端2中，每个脉冲对参考光进行随机相位调制，然后对该脉冲进行零差检测参考光和信号光的基础获取秘密信息，e。 G。秘密钥匙在终端2中，基于从用于向光源4提供同步信号的信号发送源17提供的同步信号来控制相位调制器7的处理开始定时，在终端1中，检测器26基于来自可变衰减器19的泄漏光来检测信号光的到达以控制相位调制器21的处理开始定时。（C）2007，JPO和INPIT

5. 发明专利

JP2010243208A Optical spectrum measuring device and optical spectrum measuring method 审中-公开
标题翻译：光谱测量装置和光谱测量方法
公开(公告)号：JP2010243208A
公开(公告)日：2010-10-28
申请号：JP2009089429
申请日：2009-04-01
申请人： Sony Corp , ソニー株式会社
发明人： UKITA SHOICHI , MIURA TAKAHIRO , TANAKA TAKESHI , SHINO KUNINORI
IPC分类号： G01J3/433
摘要： PROBLEM TO BE SOLVED: To provide an optical spectrum measuring device having a higher wavelength resolution, while having a simple constitution.
SOLUTION: This device includes a light source 1 for radiating light P1 to be measured, a nonlinear optical crystal 2, a wavelength selection filter 3, a spectrometer 4, and a control part 5 in this order. The nonlinear optical crystal 2 generates spontaneous parametric downward conversion to the light P1 to be measured entering from the light source 1, and emits conversion light P2. In the conversion light P2, a slight wavelength change in the light P1 to be measured is represented being greatly enlarged. Hence, a comparatively highly-accurate spectrum of the conversion light P2 can be acquired by the spectrometer 4. A spectrum of the light P1 to be measured is determined from the spectrum of the conversion light P2, by checking the relation between a wavelength of the light P1 to be measured and the wavelength of the conversion light P2 by means of conversion by the control part 5. The spectrum of the light P1 to be measured acquired, in this way, possesses higher accuracy than that measured directly by the spectrometer 4.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供具有较高波长分辨率的光谱测量装置，同时具有简单的结构。解决方案：该装置包括依次照射待测光的光源1，非线性光学晶体2，波长选择滤波器3，光谱仪4和控制部分5的光源1。非线性光学晶体2对从光源1进入的待测光P1产生自发参数向下转换，并发射转换光P2。在转换光P2中，被测量的光P1的轻微的波长变化被大大地扩大。因此，能够通过光谱仪4获得转换光P2的比较高精度的光谱。通过检查被测光的波长与转换光P2的波长之间的关系，被测量的光P1和通过控制部分5的转换的转换光P2的波长。以这种方式获得的要测量的光P1的光谱具有比由光谱仪4直接测量的精度更高的精度。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2008205667A Quantum encryption communication unit, and communication terminal 有权
标题翻译：量子加密通信单元和通信终端
公开(公告)号：JP2008205667A
公开(公告)日：2008-09-04
申请号：JP2007037389
申请日：2007-02-19
申请人： Sony Corp , ソニー株式会社
发明人： KAWAMOTO YOHEI , HIRANO TAKUYA , SHINO KUNINORI , UKITA SHOICHI
IPC分类号： H04L9/12
CPC分类号： H04B10/548 , G09C1/00 , H04L9/0858
摘要： PROBLEM TO BE SOLVED: To avoid the influence of a back-scattered light without deteriorating performance, etc., of quantum encryption, in a quantum encryption communication unit having a feature of a both-way optical system. SOLUTION: Pulse lights (signal light P1, reference light P2) generated by a laser light source 121 in a receiving terminal 102 are transmitted to a transmitting terminal 101, via a communication channel 103. The pulse lights concerned are returned again to the receiving terminal 102 via the communication channel 103. An acousto-optical element 111 attenuates the signal light P1 so as to become a faint light having an average number of photons of the order of 1, and shifts the frequencies of the signal light P1 and the reference light P2 to a higher direction. In the receiving terminal 102, the frequencies of the signal light P1 and the reference light P2 come to deviate from the frequency of the back-scattered light, generated in an optical fiber, having the same or a lower value. By this, the interference between the reference light P2 and the back-scattered light, which may cause noise to the interference between the signal light P1 and the reference light P2, can be restrained. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：在具有双向光学系统的特征的量子加密通信单元中，为了避免后向散射光的影响而不降低性能等的量子加密。
解决方案：由接收终端102中的激光源121产生的脉冲光（信号光P1，参考光P2）经由通信信道103发送到发送终端101.所涉及的脉冲光再次返回到接收终端102经由通信信道103.声光元件111使信号光P1衰减成具有平均光子数为1的微弱光，并使信号光P1和参考光P2向较高方向移动。在接收端子102中，信号光P1和参考光P2的频率偏离具有相同或更低值的在光纤中产生的反向散射光的频率。由此，可以抑制参考光P2和可能对信号光P1与参考光P2之间的干扰产生噪声的反向散射光之间的干扰。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2007266738A Quantum cryptographic communication apparatus and communication terminal 审中-公开
标题翻译： QUANTUM CRYPTOGRAPHIC通信设备和通信终端
公开(公告)号：JP2007266738A
公开(公告)日：2007-10-11
申请号：JP2006086046
申请日：2006-03-27
申请人： Sony Corp , ソニー株式会社
发明人： SHINO KUNINORI , UKITA SHOICHI , KAWAMOTO YOHEI
IPC分类号： H04L9/12 , G02B27/52 , G02F1/03 , G02F1/11 , G02F2/00 , H04B10/516 , H04B10/548 , H04B10/61 , H04B10/70
摘要： PROBLEM TO BE SOLVED: To facilitate detection of disturbance such as eavesdropping by raising the S/N ratio in homodyne detection. SOLUTION: The quantum cryptographic communication apparatus 100A comprises a transmitter side terminal 1, a receiver side terminal 2, and a channel 3. Reference light (pulse light P2) and weak signal light (pulse light P1) subjected to random phase modulation for every pulse are sent from terminal 1 to terminal 2. After the reference light is further subjected to random phase modulation by the terminal 2 for every pulse, homodyne detection is performed based on the reference light and the signal light to obtain secret information, e.g. a private key. The terminal 2 has an amplifier 11 for amplifying the reference light transmitted from the terminal 1 through the channel 3. S/N ratio in the homodyne detection can be raised by amplifying the reference light by the amplifier 11. Alternatively, the terminal 1 may be equipped with an amplifier for amplifying the reference light transmitted from the terminal 2 through the channel 3. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了便于通过提高零差检测中的S / N比来检测诸如窃听的干扰。解决方案：量子密码通信设备100A包括发射机侧终端1，接收机侧终端2和信道3.经受随机相位调制的参考光（脉冲光P2）和弱信号光（脉冲光P1）每个脉冲从端子1发送到端子2.在每个脉冲进一步对端子2对参考光进行随机相位调制之后，基于参考光和信号光进行零差检测以获得秘密信息，例如私钥。终端2具有放大器11，用于通过信道3放大从终端1发送的参考光。通过放大器11放大参考光可以提高零差检测中的S / N比。或者，终端1可以是配备放大器，用于放大从端子2通过通道3传输的参考光。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2007251678A Quantum encryption communication apparatus and average photon number setting method in communication terminal 审中-公开
标题翻译：通信终端中的量子加密通信设备和平均光标号码设置方法
公开(公告)号：JP2007251678A
公开(公告)日：2007-09-27
申请号：JP2006073449
申请日：2006-03-16
申请人： Sony Corp , ソニー株式会社
发明人： KAWAMOTO YOHEI , HIRANO TAKUYA , SHINO KUNINORI , UKITA SHOICHI
IPC分类号： H04L9/12 , H04B10/00 , H04B10/524 , H04B10/556 , H04B10/70
CPC分类号： H04B10/70 , H04L9/0858
摘要： PROBLEM TO BE SOLVED: To enable to easily detect wiretapping by exactly setting the number of photons of a signal light in an exit of a transmitter side terminal. SOLUTION: A quantum encryption communication apparatus 100A consists of a transmitter side terminal 1, a receiver side terminal 2, and a communication path 3. A reference light (pulse light P2) having a comparatively high strength and a weak signal light (pulse light P1) in which phase modulation is randomly applied per pulse are transmitted from the terminal 1 to the terminal 2. In the terminal 2, the reference light is subjected to random phase modulation per pulse, and then, homodyne detection is executed on the basis of the reference light and the signal light to acquire secret information, e. g. a secret key. The terminal 1 has a setting section for setting the average number of photons of the signal light at its exit at a predetermined value. The terminal 2 checks an estimation of the average number of photons of the signal light against the predetermined value in the terminal 1 described above, and thus, wiretapping can be detected. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了能够通过精确地设置发射机侧终端的出口处的信号光的光子数来容易地检测窃听。解决方案：量子加密通信设备100A由发射机侧终端1，接收机侧终端2和通信路径3组成。具有较高强度和弱信号光的参考光（脉冲光P2）脉冲光P1）从终端1发送到终端2.在终端2中，每个脉冲对参考光进行随机相位调制，然后对该脉冲进行零差检测参考光和信号光的基础获取秘密信息，e。 G。秘密钥匙终端1具有设置部分，用于将其出口处的信号光的平均光子数设定在预定值。终端2根据上述终端1中的预定值来检查信号光的平均光子数的估计，因此可以检测窃听。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2005236683A Optical communication system, and synchronizing method for optical communication system 有权
标题翻译：光通信系统和光通信系统的同步方法
公开(公告)号：JP2005236683A
公开(公告)日：2005-09-02
申请号：JP2004043491
申请日：2004-02-19
申请人： Sony Corp , ソニー株式会社
发明人： HONGO KAZUYASU , MATSUDA OSAMU , SHINO KUNINORI , HORIE KAZUYOSHI
IPC分类号： H04L7/04 , H04B10/27 , H04B10/272 , H04B10/556 , H04B10/20 , H04B10/00
摘要： PROBLEM TO BE SOLVED: To detect data by a clock signal from one and the same clock source in a system in which a star coupler connects a plurality of nodes.
SOLUTION: The clock source 3 having an optical transmitter 10 for outputting a clock signal in a prescribed wavelength is connected to the star coupler 4 to which the plurality of nodes 2 are connected. Each node 2 includes a phase comparator 12 for comparing the clock signal with a data signal in phase, a phase adjuster 13 for reception for adjusting the phase of a received data signal and a phase adjuster 14 for transmission for adjusting the phase of a data signal to be transmitted. The phase comparator 12 of each node 2 compares a data signal outputted from an optional node 2 among the plurality of nodes 2 with the clock signal output from the clock source 3 in phase, and the phase adjuster 13 for reception and the phase adjuster 14 for transmission make phases between the data signal and the clock signal coincide with each other.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过星型耦合器连接多个节点的系统中的同一个时钟源的时钟信号来检测数据。解决方案：具有用于输出规定波长的时钟信号的光发送器10的时钟源3连接到与多个节点2连接的星形耦合器4。每个节点2包括用于将时钟信号与同相数据信号进行比较的相位比较器12，用于调整接收数据信号的相位的接收的相位调整器13和用于调整数据信号的相位的发送的相位调整器14 被传送。每个节点2的相位比较器12将从多个节点2中的可选节点2输出的数据信号与从时钟源3同相输出的时钟信号和用于接收的相位调整器13和相位调整器14进行比较数据信号和时钟信号之间的传输使相位彼此一致。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2005203096A Optical pickup module and magneto-optical signal recording/reproducing device 有权
标题翻译：光学拾取模块和磁光信号记录/再现装置
公开(公告)号：JP2005203096A
公开(公告)日：2005-07-28
申请号：JP2005045745
申请日：2005-02-22
申请人： Sony Corp , ソニー株式会社
发明人： NISHI NORIAKI , SAITO KIMIHIRO , MATSUMOTO SHUICHI , HATTORI MASATO , MORIMOTO TADASHI , UEDA MITSUNORI , KUBO TAKESHI , MATSUO NORIMASA , HORIE KAZUYOSHI , SATO YURIKO , SHINO KUNINORI
IPC分类号： G02B5/30 , G11B7/135
摘要： PROBLEM TO BE SOLVED: To realize an optical pickup unit having high detection accuracy. SOLUTION: A polarization separating element constituting the optical pickup module is formed by a double-refraction type single body. Since setting of an optical axis direction of the polarization separating element is easily performed, improvement in making the optical pickup small-sized and improvement in detection accuracy of the optical pickup unit are made possible. COPYRIGHT: (C)2005,JPO&NCIPI

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