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    • 3. 发明专利
    • 光ファイバマイクロ波伝送装置
    • 光纤微波发射器
    • JP2014216804A
    • 2014-11-17
    • JP2013091974
    • 2013-04-25
    • 三菱電機株式会社Mitsubishi Electric Corp
    • AKIYAMA TOMOHIROANDO TOSHIYUKI
    • H04B10/2507H04B10/071H04B10/2575
    • 【課題】パルス変調信号や周波数チャープ信号などの変調信号であっても高位相安定に伝送可能な光ファイバマイクロ波伝送装置を得る。【解決手段】 IF信号で強度変調した第1の変調光を伝送する第1の光伝送路と、第1の光伝送路に並設され電圧制御発振器が出力した第2の高周波信号で強度変調した第2の変調光を伝送する第2の光伝送路と、この第2の変調光の一部を反射させ、他の一部を通過させる光部分反射手段と、第1の変調光を復調した高周波信号と第2の変調光を復調した高周波信号との和周波数信号を出力する第1の周波数変換手段と、光部分反射手段で反射した第2の変調光を復調した電気信号から生成した高周波信号と基準信号とを比較し、その差周波数成分に応じた電圧を有する誤差信号を出力するとともに、この誤差信号を電圧制御発振器に入力して第2の高周波信号の周波数を制御する位相比較手段と、を備える。【選択図】図1
    • 要解决的问题:提供一种即使是具有高相位脉冲调制信号或频率线性调频信号的调制信号也能够稳定地发送的光纤微波发送器。解决方案:一种光纤微波发射机包括:第一光传输路径 用于发送由IF信号强度调制的第一调制光; 与第一光传输路径并排布置的第二光传输路径,用于传输由压控振荡器输出的第二高频信号强度调制的第二调制光; 光学部分反射装置,用于反射第二调制光的一部分,并允许其他部分通过; 第一频率转换装置,用于输出通过解调第一调制光获得的高频信号和通过解调第二调制光而获得的高频信号的和频信号; 以及相位比较装置,用于将通过解调由光学部分反射装置反射的第二调制光获得的电信号产生的高频信号与参考信号进行比较,并输出具有对应于差频分量的电压的误差信号, 并且通过将误差信号输入到电压控制振荡器来控制第二高频信号的频率。
    • 4. 发明专利
    • 位相同期レーザ装置
    • 相锁激光器件
    • JP2014216418A
    • 2014-11-17
    • JP2013091437
    • 2013-04-24
    • 三菱電機株式会社Mitsubishi Electric Corp
    • HARAGUCHI EISUKEANDO TOSHIYUKISUZUKI JIROOCHIMIZU HIDEAKI
    • H01S3/10
    • H01S3/10
    • 【課題】光学部品の耐パワーによって、信号光の数の制限を受けることなく、高出力なレーザ光を放射することができる位相同期レーザ装置を得ることを目的とする。【解決手段】N個のタップミラー9−1〜9−Nを受信光路10と同軸に配置し、タップミラー9−n(n=1,2,・・・,N)が、コリメータ7−nから出力された信号光の一部を受信光路10の方向に反射させて、残りの大部分の信号光を出力光路11−nの方向に透過させる一方、局発光コリメータ8から出力された局発光を受信光路10の方向に透過させるように構成する。【選択図】図1
    • 要解决的问题:获得能够辐射高输出激光的锁相激光装置,而不限制由于光学部件的功率电阻而引起的信号光束的数量。解决方案:N个抽头反射镜9-1至9- N与接收光路10同轴配置,并且分接镜9-n(n = 1,2,...,N)被配置为使得从准直器7-n输出的信号光的一部分被反射 在接收光路10的方向上,剩余的大部分信号光沿着输出光路11-n的方向传输,并且从局部光准直仪8输出的局部光沿着 接收光路10。
    • 5. 发明专利
    • Analog optical transmission apparatus
    • 模拟光学传输装置
    • JP2014116679A
    • 2014-06-26
    • JP2012267316
    • 2012-12-06
    • Mitsubishi Electric Corp三菱電機株式会社
    • AKIYAMA TOMOHIROMATSUZAWA HIROFUMIKAMEYAMA SHUNPEIANDO TOSHIYUKIHIRANO YOSHIHITO
    • H04B10/2507
    • PROBLEM TO BE SOLVED: To suppress deterioration in signal quality by varying a frequency of a chirp signal to be superposed to a laser in accordance with a distance between a plurality of reflection points in an optical fiber transmission line.SOLUTION: An analog optical transmission apparatus includes: a chirp signal generator 8 for generating a chirp signal; combination means 9 for combining the chirp signal generated by the chirp signal generator 8 with an analog signal inputted to a laser; reflection means 4 for reflecting a part of modulated light transmitted through an optical fiber transmission line 2 and returning the part of the modulated signal in the optical fiber transmission line 2; photoelectric conversion means 6 for photoelectrically converting the modulated light reflected by the reflection means 4 and returned in the optical fiber transmission line 2 and demodulating the photoelectrically converted light into an analog signal; and signal processing means 7 for monitoring a level of a peripheral band of a frequency of the analog signal demodulated by the photoelectric conversion means 6 and controlling a frequency of the chirp signal generated by the chirp signal generator 8 in accordance with the level.
    • 要解决的问题:通过根据光纤传输线中的多个反射点之间的距离改变要叠加到激光器的线性调频信号的频率来抑制信号质量的劣化。解决方案:模拟光传输设备 包括:用于产生啁啾信号的啁啾信号发生器8; 组合装置9,用于将由啁啾信号发生器8产生的啁啾信号与输入到激光器的模拟信号组合; 反射装置4,用于反射通过光纤传输线2传输的调制光的一部分,并返回光纤传输线2中的调制信号的一部分; 光电转换装置6,用于对由反射装置4反射并返回到光纤传输线2中的调制光进行光电转换,并将该光电转换的光解调为模拟信号; 以及信号处理装置7,用于监视由光电转换装置6解调的模拟信号的频率的周边频带的电平,并根据电平控制由啁啾信号发生器8产生的线性调频信号的频率。
    • 6. 发明专利
    • High frequency oscillator and method of changing oscillation frequency of high frequency oscillator
    • 高频振荡器和改变高频振荡器振荡频率的方法
    • JP2013239841A
    • 2013-11-28
    • JP2012110807
    • 2012-05-14
    • Mitsubishi Electric Corp三菱電機株式会社
    • MIZUMA MASASHITSURU MASAOMIANDO TOSHIYUKIHIRANO YOSHIHITO
    • H03B19/14G02F1/01
    • PROBLEM TO BE SOLVED: To provide a high frequency oscillator that implements a variable oscillation frequency without using a delayer nor a variable bandpass filter.SOLUTION: The high frequency oscillator includes an optical transmission system and an electrical transmission system, inputs a signal from the optical transmission system into the optical transmission system again as a feedback signal via the electrical transmission system to configure a feedback circuit, and starts to oscillate with a high frequency signal. The electrical transmission system includes: signal output means (9) for outputting a high frequency signal; first branch means (8) for bifurcating the high frequency signal; first signal mixing means (5) for mixing a high frequency signal converted from an optical signal to an electrical signal with the signal branching from the first branch means; and second signal mixing means (6) for mixing a high frequency signal from the first signal mixing means with the signal branching from the first branch means to generate a high frequency signal including a signal component of the feedback signal. The signal output means (9) changes an output frequency to change the oscillation frequency.
    • 要解决的问题:提供一种在不使用延迟器和可变带通滤波器的情况下实现可变振荡频率的高频振荡器。解决方案:高频振荡器包括光传输系统和电传输系统,输入来自光学 传输系统再次通过电传输系统作为反馈信号配置到光传输系统中,以配置反馈电路,并开始以高频信号振荡。 电气传输系统包括:用于输出高频信号的信号输出装置(9); 用于使高频信号分叉的第一分支装置(8); 用于将从光信号转换的高频信号与电信号混合的第一信号混合装置(5)与从第一分支装置分支的信号; 以及用于将来自第一信号混合装置的高频信号与从第一分支装置分支的信号混合以产生包括反馈信号的信号分量的高频信号的第二信号混合装置(6)。 信号输出装置(9)改变输出频率以改变振荡频率。
    • 7. 发明专利
    • Optical phase synchronization laser
    • 光相同步激光
    • JP2013197280A
    • 2013-09-30
    • JP2012062203
    • 2012-03-19
    • Mitsubishi Electric Corp三菱電機株式会社
    • HARAGUCHI EISUKEHIRANO YOSHIHITOANDO TOSHIYUKI
    • H01S3/10
    • PROBLEM TO BE SOLVED: To obtain a compact optical phase synchronization laser which can achieve stable phase synchronization, without mounting the same number of receivers as that of the output light.SOLUTION: An optical frequency shifter 4 adjusts the frequency of N signal light branched by N branch light splitters 3, according to a phase control signal output from a phase control circuit 13. An optical phase modulator 5 modulates the phase of N signal light by using N dithering signals of different frequency output from a frequency discrimination circuit 10. A collimator 6 outputs the N signal light, subjected to phase modulation by the optical phase modulator 5, while collimating.
    • 要解决的问题:为了获得可以实现稳定的相位同步的紧凑型光学相位同步激光器,而不安装与输出光的接收器相同数量的接收器。解决方案:光学移频器4调节N信号光的分频频率 N分支光分离器3,根据从相位控制电路13输出的相位控制信号。光相位调制器5通过使用从频率鉴别电路10输出的不同频率的N个抖动信号来调制N信号光的相位。准直仪 6输出通过光相位调制器5进行相位调制的N信号光,同时进行准直。
    • 8. 发明专利
    • Acquisition and tracking apparatus
    • 收购和跟踪设备
    • JP2013150302A
    • 2013-08-01
    • JP2012258641
    • 2012-11-27
    • Mitsubishi Electric Corp三菱電機株式会社
    • HARAGUCHI EISUKEHIRANO YOSHIHITOANDO TOSHIYUKISUZUKI JIRO
    • H04B10/112H04B10/61
    • PROBLEM TO BE SOLVED: To provide an acquisition and tracking apparatus that reconciles a wide angle error detection range for ensuring stable communication, and high speed communication.SOLUTION: The acquisition and tracking apparatus includes: an optical hybrid element 3 for combining light waves of incoming light 201 and local light 202 and outputting a plurality of outgoing rays having emission angles equal to incidence angles of the received rays; and an acquisition and tracking sensor 12 having first to fourth divided photoelectric converters 4, 5, 6 and 7 for extracting beat signals from the plurality of outgoing rays output from the optical hybrid element 3 and converting them to electrical signals, first and second rough acquisition error signal generation circuits 8 and 10 for generating rough acquisition error signals acquiring the electrical signals converted by the first to fourth divided photoelectric converters 4, 5, 6 and 7 at a wide angel to an emission surface of the optical hybrid element 3, and first and second precise acquisition error signal generation circuits 9 and 11 for generating precise acquisition error signals acquiring the electrical signals converted by the first to fourth divided photoelectric converters 4, 5, 6 and 7 with high precision in the emission direction of the optical hybrid element 3.
    • 要解决的问题:提供一种调和广角误差检测范围的采集和跟踪装置,以确保稳定的通信和高速通信。解决方案:采集和跟踪装置包括:光混合元件3,用于组合进入的光波 光201和本地光202,并且输出具有等于所接收的光线的入射角的发射角的多个射出射线; 以及采集跟踪传感器12,具有第一至第四分离光电转换器4,5,6和7,用于从光混合元件3输出的多个输出光线提取拍频信号,并将其转换为电信号,第一和第二粗略采集 用于产生粗略获取误差信号的误差信号产生电路8和10,其以宽天使将由第一至第四分离光电转换器4,5,6和7转换的电信号获取到光混合元件3的发射表面, 以及第二精确采集误差信号发生电路9和11,用于产生在光学混合元件3的发射方向上以高精度获得由第一至第四分离光电转换器4,5,6和7转换的电信号的精确采集误差信号 。
    • 9. 发明专利
    • Wavefront sensor and compensation optical system
    • 波导传感器和补偿光学系统
    • JP2013104732A
    • 2013-05-30
    • JP2011247634
    • 2011-11-11
    • Mitsubishi Electric Corp三菱電機株式会社
    • SUZUKI JIROANDO TOSHIYUKI
    • G01J9/00
    • PROBLEM TO BE SOLVED: To provide a wavefront sensor capable of improving a processing speed and reducing a cost.SOLUTION: The wavefront sensor performs a control to scan and read a plurality of preset partial image areas 12 in at least one scanning direction of a horizontal scan and a perpendicular scan of a two-dimensional detector 10 and not to scan an image area other than the plurality of partial image areas 12. The plurality of partial image areas 12 have predetermined widths parallel to the scanning direction and disposed at substantially equal intervals. An alignment interval of lenslets constituting a lenslet array is configured to be equal to the interval of the partial image areas 12 of the two-dimensional detector 10, and multiple converging-point patterns formed by the lenslets are detected at the partial image areas 12 of the two-dimensional detector 10.
    • 要解决的问题:提供能够提高处理速度并降低成本的波前传感器。

      解决方案:波前传感器执行控制以扫描和读取水平扫描的至少一个扫描方向和二维检测器10的垂直扫描的多个预设部分图像区域12,而不扫描图像 多个部分图像区域12具有与扫描方向平行的预定宽度并以大致相等的间隔布置。 构成小透镜阵列的小透镜的对准间隔被配置为等于二维检测器10的部分图像区域12的间隔,并且在部分图像区域12处检测由小透镜形成的多个会聚点图案 二维检测器10.版权所有(C)2013,JPO&INPIT

    • 10. 发明专利
    • High frequency oscillator
    • 高频振荡器
    • JP2012226256A
    • 2012-11-15
    • JP2011096068
    • 2011-04-22
    • Mitsubishi Electric Corp三菱電機株式会社
    • MIZUMA MASASHIAKIYAMA TOMOHIROANDO TOSHIYUKIHIRANO YOSHIHITO
    • G02F2/02
    • PROBLEM TO BE SOLVED: To achieve realization of a stabilized signal frequency even when a surrounding environmental temperature varies largely due to an expanded frequency adjusting range of a high frequency signal.SOLUTION: A high frequency oscillator comprises: an optical frequency shifter 3 for shifting a frequency of one laser beam after branching by an optical coupler 2, in accordance with a control signal output from a coupler 13; an optical frequency shifter 4 for shifting a frequency of the laser beam whose frequency is shifted by the optical frequency shifter 3, in accordance with a control signal output from a voltage-controlled oscillator 17; and an optical frequency shifter 5 for shifting a frequency of the other laser beam after branching by the optical coupler 2, in accordance with a control signal output from a coupler 11.
    • 要解决的问题:即使当周围的环境温度由于高频信号的频率调节范围的扩大而很大地变化时,也能实现稳定的信号频率。 解决方案:高频振荡器包括:光移位器3,用于根据从耦合器13输出的控制信号,在由光耦合器2分支之后移位一个激光束的频率; 光移位器4,根据从压控振荡器17输出的控制信号,移位频移光频移相器3的频率; 以及用于根据从耦合器11输出的控制信号,通过光耦合器2分支之后移动另一激光束的频率的光学移位器5.(C)2013,JPO和INPIT