会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明专利
    • OPTICAL MODULATOR
    • JPS62273510A
    • 1987-11-27
    • JP11779086
    • 1986-05-21
    • NEC CORP
    • HARADA TETSUO
    • H01S3/107G02F1/03
    • PURPOSE:To obtain laser light having a prescribed output waveform, by setting optional voltage waveform data and generating a high voltage corresponding to the data, and then, applying the high voltage across an electrooptic crystal. CONSTITUTION:Optical voltage waveform data are set in a storage section 6 from a data setting section 7. When trigger signals 9 are inputted to the storage section 6, the already set voltage waveform data are successively outputted and converted into voltage waveform by means of a DA converter 5 and the outputs of the converter 5 are amplified to high voltages by using a high-voltage amplifier 4 and impressed across an electrooptic crystal 1. When a high voltage V is impressed across the electrooptic crystal 1, the polarized light of laser light passed through the inside of the crystal 1 is changed proportionally to the high voltage. Therefore, the incident laser light 10 is optically modulated by the electrooptic crystal 1 and polarizers 2 and 3 provided on both sides of the transmissive optical axis of the crystal under a condition where their transmissive axes intersect with each other at right angles and the gain saturation, etc., of a laser amplifier 8 can be corrected. As a result, a necessary amplified laser waveform 12 is obtained.
    • 5. 发明专利
    • Dme ground device and transmission method of distance information by dme ground device
    • DME地面装置和DME地面装置的距离信息传输方法
    • JP2011106956A
    • 2011-06-02
    • JP2009262106
    • 2009-11-17
    • Nec Corp日本電気株式会社
    • HARADA TETSUOOGAWA SATOSHI
    • G01S13/75G01S7/40G01S13/76G01S13/79G01S13/91
    • PROBLEM TO BE SOLVED: To prevent the operation stop of a DME (distance measuring equipment) ground device by generating a transmission pulse of a normal answering signal, even if a CW (continuous wave) interfering waves that are not less than a predetermined signal level are input.
      SOLUTION: A receiver 15 always monitors the signal level of a question signal for measurement, arriving from an aircraft (not shown) and received signal level of a diagnostic question signal generated by a question signal generating unit 18 for performing self diagnosis. When the CW interference waves arrive at the receiver 15, the signal level of the diagnostic question signal generated by the question signal generating unit 18 in a monitoring control device 17a is amplified by a variable amplifier 19, so that the signal level of the amplified diagnostic question signal is controlled to be higher than the signal level of the CW interfering wave. Consequently, even if the signal level of the CW interference waves become higher, a stable answering signal can be transmitted from a transmitter 16 to the aircraft through an antenna 11. Thus, the DME ground device 10a can continue to stably transmit distance measurement information to the aircraft.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了通过产生正常应答信号的发送脉冲来防止DME(测距设备)地面装置的操作停止,即使不小于一个的CW(连续波)干扰波 输入预定信号电平。 解决方案:接收机15总是监视从飞机(未示出)到达的用于测量的问题信号的信号电平和由问题信号产生单元18产生的用于执行自诊断的诊断问题信号的接收信号电平。 当CW干扰波到达接收机15时,由监视控制装置17a中的问题信号产生单元18产生的诊断问题信号的信号电平由可变放大器19放大,使得放大的诊断信号的信号电平 问题信号被控制为高于CW干扰波的信号电平。 因此,即使CW干扰波的信号电平变高,可以通过天线11将稳定的应答信号从发送机16发送到飞机。因此,DME地面装置10a可以继续稳定地将距离测量信息发送到 飞机。 版权所有(C)2011,JPO&INPIT
    • 6. 发明专利
    • SEMICONDUCTOR LASER EXCITATION SOLID LASER
    • JPH04186888A
    • 1992-07-03
    • JP31704190
    • 1990-11-21
    • NEC CORP
    • HARADA TETSUOKUBOMURA HIROYUKI
    • H01S3/094
    • PURPOSE:To make it possible to enhance the absorptivity of semiconductor laser light extremely and further operate a Q-switch of a solid laser by installing a semiconductor laser light incident section which has a nonreflective coat surface against the semiconductor laser light and moreover includes no laser active ions to the side of a cylinder-shaped solid laser medium. CONSTITUTION:A semiconductor laser incident section 20 is installed in the side of a solid laser medium 6 which laser light from a semiconductor laser 1 enters. This incident section 20 has a nonreflective coat surface against the wavelength of laser light from the semiconductor laser 1 and comprises a material which contains no laser active ions. An output mirror 3 is installed on the axis of a cylinder-shaped solid laser medium on the left while a whole reflected mirror 4 is installed thereto on the right respectively. In front of the whole reflected mirror 4 is installed a Q switch operation unit 5 which comprises an acousto optical device and an optoelectric device or the like.
    • 7. 发明专利
    • LASER DISTANCE MEASURING EQUIPMENT
    • JPH03142397A
    • 1991-06-18
    • JP28128789
    • 1989-10-27
    • NEC CORP
    • HARADA TETSUO
    • G01S17/08
    • PURPOSE:To improve a distance resolution by arbitrarily delaying a driving signal between a pulse generating circuit and a semiconductor laser by a variable delay circuit. CONSTITUTION:A semiconductor laser 5 is driven 4 with the output of a pulse generating circuit 1 to generate pulse laser light, and a target 7 is irradiated with the is light, and the reflected pulse laser light is detected by a light detecting circuit 9. By this detection signal, a gate circuit 10 controls the input of the clock output of a clock generating circuit 11 to a counter display device 12. In this case, a variable delay circuit 2 which arbitrarily delays the driving signal is provided between the circuit 1 and the laser 5. The time of pulse laser light emission from the laser 5 is finely changed by the circuit 2 to perform measurement continuously several times, and addition and display on the counter display device 12 are performed, thereby obtaining a high distance resolution.
    • 8. 发明专利
    • Tactical air navigation-ground device, and reception signal monitoring method and reception signal monitoring program that are used for the device
    • 战术空中导航地面装置以及接收信号监测方法和接收用于设备的信号监测程序
    • JP2012163418A
    • 2012-08-30
    • JP2011023327
    • 2011-02-04
    • Nec Corp日本電気株式会社
    • HARADA TETSUOSAITO NORIYUKI
    • G01S7/36G01S1/50G01S13/74
    • PROBLEM TO BE SOLVED: To provide a tactical air navigation-ground device allowing a normal operation even if there is a disturbance wave when receiving a distance query wave from a tactical air navigation-airborne device.SOLUTION: If a CW disturbance wave is included when a reception signal rs extracted by reception signal acquisition means (a circulator 14) is monitored for each azimuth by reception signal monitoring means (an interference monitoring part 16 and a coaxial switch 17), a reception signal rs of an azimuth where the CW disturbance wave exists is shut off and reception signals rs of azimuths where no CW disturbance wave exists are extracted to be synthesized by reception signal synthesis means (a synthesizer 18) to be output as a synthesis signal cs. The synthesis signal cs is received by reception means (a receiver 19) to be output as a receiver output signal rm. After elapsing a predetermined delay period, a response transmission signal (a response transmission pulse ps) is output in response to the reception signal rs by transmission means (a transmitter 11). The response transmission pulse ps is monitored by a monitor part 20.
    • 要解决的问题:即使在从战术空中导航机载装置接收到距离查询波时,即使存在干扰波,也能够提供能够进行正常动作的战术空中导航接地装置。 解决方案:当由接收信号监测装置(干扰监测部分16和同轴开关17)监测由接收信号获取装置(循环器14)提取的接收信号rs对于每个方位角时是否包括CW干扰波, 提取存在CW干扰波的方位角的接收信号rs,并且不存在CW干扰波的方位角的接收信号rs由接收信号合成装置(合成器18)合成,作为合成输出 信号cs。 合成信号cs由接收装置(接收机19)接收,作为接收机输出信号rm输出。 在经过预定延迟时段之后,响应于由发送装置(发送器11)的接收信号rs输出响应发送信号(响应发送脉冲ps)。 响应传输脉冲ps由监视器部分20监视。版权所有:(C)2012,JPO&INPIT
    • 9. 发明专利
    • Screen pointing device
    • 屏幕指示装置
    • JP2010231627A
    • 2010-10-14
    • JP2009080069
    • 2009-03-27
    • Nec Corp日本電気株式会社
    • MATSUMOTO YUTAKAHARADA TETSUO
    • G06F3/033
    • PROBLEM TO BE SOLVED: To provide a screen pointing device, which identifies, when a plurality of users performs presentation on the same screen respectively using a plurality of pointing tools, the user who instructs a specific position and the pointing tool used thereby. SOLUTION: The pointing tool generates pulse signal in a set pulse period and emits laser light to a screen as pulse wave laser right synchronously to the pulse signal. A receiving device determines specific position information based on reflected pulse wave laser light when the pulse wave laser light is reflected at the specific position on the screen, refers to a management table storing a plurality of pulse periods and a plurality of identifiers identifying a plurality of pointing tools respectively to select an identifier corresponding to the set pulse period of the reflected pulse wave laser beam from the plurality of identifiers as a target identifier, and outputs specific position information in the target identifier, as the specific position pointed by the pointing tool, to an output device. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种屏幕指示装置,其识别当多个用户分别使用多个指示工具在同一屏幕上执行呈现时,指示特定位置的用户和由此使用的指示工具 。

      解决方案:指针工具在设定的脉冲周期内产生脉冲信号,并与脉冲信号同步地作为脉冲激光发射激光至屏幕。 当脉搏波激光在屏幕上的特定位置处被反射时,接收装置基于反射的脉冲波激光来确定特定位置信息,是指存储多个脉冲周期的管理表和识别多个 指定工具分别选择与来自多个标识符的反射脉冲波激光束的设定脉冲周期对应的标识符作为目标标识符,并将目标标识符中的特定位置信息作为指示工具指定的特定位置, 到输出设备。 版权所有(C)2011,JPO&INPIT