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    • 2. 发明授权
    • Frequency modulator
    • 频率调制器
    • US5923458A
    • 1999-07-13
    • US985357
    • 1997-12-04
    • Masaru FuseKatsuyuki FujitoKoji Kikushima
    • Masaru FuseKatsuyuki FujitoKoji Kikushima
    • H04B10/61H04B10/07H04B10/2507H04B10/516H04B10/54H04B10/548H04B10/564H04B10/58G02F1/01H04B10/04
    • H04B10/64H04B10/50H04B10/504H04B10/548H04B10/60
    • An electrical signal to be frequency-modulated is branched into first and second signals. An FM laser 102 oscillates light having a wavelength .lambda.1 in a steady state condition, and outputs an optical signal obtained by converting an amplitude change in the inputted first signal into an optical intensity change and an optical frequency change. An optical detecting portion 106, to which the optical signal from the FM laser 102 and light having a wavelength .lambda.0 outputted from a local light source 104 are inputted, converts an optical intensity modulation component of the inputted optical signal as a current amplitude change by operating square-law detection characteristics, and generates a beat signal at a frequency corresponding to a difference in wavelength .DELTA..lambda. between the two inputted optical signals. A discrimination portion 110 discriminates using a threshold value generated on the basis of the second signal and converts the beat signal into the pulse signal. A high frequency component of the pulsed beat signal is removed by an LPF 311. Consequently, it is possible to generate an ideal wide band FM modulation signal by removing an amplitude variation and an average value variation from the beat signal generated by using an optical frequency modulating operation of a laser diode and heterodyne detection.
    • 要被频率调制的电信号被分支为第一和第二信号。 FM激光器102在稳态条件下振荡波长为λ1的光,并将输入的第一信号中的振幅变化转换成光强度变化和光频率变化而得到的光信号。 输入来自FM激光器102的光信号和从本地光源104输出的具有波长λ0的光的光学检测部分106将输入的光信号的光强度调制分量转换为电流幅度变化, 并且以与两个输入的光信号之间的波长DELTAλ的差对应的频率产生拍频信号。 鉴别部分110使用基于第二信号生成的阈值来鉴别,并将拍频信号转换成脉冲信号。 脉冲差拍信号的高频分量由LPF 311去除。因此,可以通过从通过使用光频率产生的拍频信号中去除振幅变化和平均值变化来产生理想的宽带FM调制信号 激光二极管的调制操作和外差检测。
    • 3. 发明授权
    • Optical transmission system and optical transmission method
    • 光传输系统和光传输方式
    • US5768449A
    • 1998-06-16
    • US707470
    • 1996-09-04
    • Masaru FuseKatsuyuki Fujito
    • Masaru FuseKatsuyuki Fujito
    • G02F1/01H04B10/07H04B10/2507H04B10/54H04B10/564H04B10/58H04B10/04
    • H04B10/5051H04B10/504H04B10/58
    • When an electric signal outputted from a signal source (101) is converted to a light signal in an electrica-optical converting portion (104), a distortion component such as secondary or tertiary distortion is caused in the light signal to deteriorate transmission quality. Therefore, the light signal outputted from the electrica-optical converting portion (104) is further intensity-modulated with the same electric signal in an external light modulation portion (106) to forcibly cause a distortion which is out of phase with and of the same amplitude as the distortion component caused in the electrical-optical converting portion (104), thereby canceling the distortion component included in the light signal. Consequently, an optical transmission system capable of high-quality optical transmitting can be realized while employing a device having equivalent performance with the conventional devices.
    • 当从信号源(101)输出的电信号被转换成电光转换部分(104)中的光信号时,在光信号中引起诸如二次或三次失真的失真分量,从而降低传输质量。 因此,从电光转换部分(104)输出的光信号在外部光调制部分(106)中用相同的电信号进一步进行强度调制,以强制引起与其相同的失真 振幅作为在电光转换部分(104)中引起的失真分量,从而消除包含在光信号中的失真分量。 因此,可以在采用与传统装置具有等效性能的装置的同时实现能够进行高质量光传输的光传输系统。
    • 5. 发明申请
    • DATA MANAGEMENT DEVICE AND DATA MANAGEMENT METHOD
    • 数据管理设备和数据管理方法
    • US20130097196A1
    • 2013-04-18
    • US13805220
    • 2011-06-20
    • Masaru FuseTakamitsu Sasaki
    • Masaru FuseTakamitsu Sasaki
    • G06F17/30
    • G06F16/50H04N5/77
    • A data management device for centrally storing electronic data acquired from a data processing device, the data management device comprising: an identification write unit for writing first identification indicating that the electronic data is saved in a storage device into the electronic data saved in the storage device, and outputting the electronic data having the written first identification to the data processing device; an identification detection unit for detecting second identification written in electronic data inputted from the data processing device, and determining whether the first identification and the second identification match; and a selection unit for recording, into the storage device, the electronic data inputted from the data processing device when it is determined that the first identification and the second identification do not match or when the second identification is not detected.
    • 一种用于集中存储从数据处理装置获取的电子数据的数据管理装置,所述数据管理装置包括:识别写入单元,用于将表示所述电子数据被保存在存储装置中的第一标识写入保存在所述存储装置中的电子数据 并将具有写入的第一标识的电子数据输出到数据处理装置; 识别检测单元,用于检测写入从数据处理装置输入的电子数据的第二识别,以及确定第一识别和第二识别是否匹配; 以及选择单元,用于当确定第一标识和第二标识不匹配或当未检测到第二标识时,将从数据处理设备输入的电子数据记录到存储设备中。
    • 6. 发明授权
    • Data communication apparatus
    • 数据通信装置
    • US08180052B2
    • 2012-05-15
    • US11661313
    • 2005-08-31
    • Masaru FuseSatoshi FurusawaTsuyoshi IkushimaToru Shiozaki
    • Masaru FuseSatoshi FurusawaTsuyoshi IkushimaToru Shiozaki
    • H04K1/00
    • H04L9/088H04L9/12H04L2209/08
    • A data communication apparatus wherein stealthiness is 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 in a random number manner, 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 received second predetermined initial value (key information).
    • 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来增强隐身性。 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,生成其电平基本上以随机数方式变化的多值信号,并将多值信号转换为 用于传输的预定调制格式。 数据接收装置解调调制信号以输出多值信号,然后从多值信号和接收到的第二预定初始值(密钥信息)再现信息数据。
    • 8. 发明申请
    • PRESS-FITTING METHOD OF MEMBER AND PRESS-FITTING APPARATUS
    • 成员和压力装置的压配方法
    • US20100275434A1
    • 2010-11-04
    • US12735210
    • 2008-12-24
    • Masaru Fuse
    • Masaru Fuse
    • B23P19/02B23P11/00
    • B25B27/02B21L9/065B23P19/02Y10T29/49945Y10T29/53796Y10T29/53961Y10T29/53983Y10T29/53996
    • The invention provides a press-fitting method of a member and a press-fitting apparatus in which press-fitting errors can be reduced, without using a dummy pin.The pressing jig 45 includes a main body 46 having a guide pin containing part 47 which is open downward, a compression coil spring (a resilient member) 48 which is contained in an upper part of the guide pin containing part 47, a guide pin 49 which is contained in a lower part of the guide pin containing part 47 with its lower end portion projected downward from a lower face of the main body 46 by an urging force of the compression coil spring 48, and a permanent magnet 50 in an annular shape which is fixed to the lower face of the main body 46, as attracting and holding unit for attracting and holding the press-fitting member 11.
    • 本发明提供一种构件和压入装置的压入方法,其中可以减少压配误差,而不使用假针。 按压夹具45包括:主体46,其具有向下开口的引导销容纳部47;容纳在引导销容纳部47的上部的压缩螺旋弹簧(弹性部件)48;引导销49 该导向销容纳部47的下部,其下端部通过压缩螺旋弹簧48的作用力从主体46的下表面向下方突出,并且具有环状的永磁体50 其固定在主体46的下表面上,作为用于吸引和保持压配构件11的吸引保持单元。
    • 9. 发明授权
    • Data transmitter and data receiver
    • 数据发射机和数据接收机
    • US07801300B2
    • 2010-09-21
    • US11651037
    • 2007-01-09
    • Masaru FuseSatoshi FurusawaTsuyoshi IkushimaTomokazu Sada
    • Masaru FuseSatoshi FurusawaTsuyoshi IkushimaTomokazu Sada
    • H04N7/16H04L29/00H04L9/00H04L9/20
    • H04K1/02H04L9/0662H04L2209/34
    • 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. A multi-level code generation section 111a generates, based on predetermined 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 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 the combination of the multi-level code sequence 12 and the information data 10. A modulator section 112 treats the multi-level signal a predetermined modulating processing and generates a modulated signal. The multi-level code generation section 111a generates the multi-level code sequence 12 in accordance with a changed random number sequence which results from changing a bit series of a binary random number sequence generated based on the predetermined key information.
    • 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。 多级代码生成单元111a基于规定的键信息11生成信号电平变化为大致随机数的多级代码序列12。 多级处理部分111b组合多级代码序列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的组合相对应的多个级别的多级信号13 调制器部分112对多电平信号进行预定的调制处理,并产生调制信号。 多级代码生成部111a根据改变的随机数序列生成多级代码序列12,该随机数序列是根据预定的密钥信息生成的二进制随机数序列的位序列的改变而得到的。