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
    • 41. 发明申请
    • Up-conversion optical fiber laser with external cavity structure
    • 具有外腔结构的上转换光纤激光器
    • US20070002906A1
    • 2007-01-04
    • US11476144
    • 2006-06-28
    • Kiyoyuki KawaiJae Yong
    • Kiyoyuki KawaiJae Yong
    • H01S3/30H01S3/08
    • H01S3/094003G02B6/2713H01S3/094092
    • The invention provides an up-conversion optical fiber laser apparatus with an external resonator structure. In the invention, a laser element outputs light of a first wavelength to excite an up-conversion optical fiber doped with rare earth ions used for converting the first wavelength light into a second wavelength light. An output mirror is disposed at an output end of the optical fiber, and cooperates with a high reflective layer of the laser element to operate as a resonator for the first wavelength light. An input mirror is disposed at an input end of the optical fiber and cooperates with the output mirror to operate as a resonator for the second wavelength. A polarization mode controller converts light incident from the optical fiber into light of eigen-polarization wave for the laser element and outputs the converted light to the laser element. Further, a beam transformer converts light incident from the polarization mode controller into a shape required by the optical fiber and outputs the transformed light to the optical fiber, and vice versa.
    • 本发明提供一种具有外部谐振器结构的上转换光纤激光装置。 在本发明中,激光元件输出第一波长的光,以激发掺杂有用于将第一波长光转换为第二波长光的稀土离子的上转换光纤。 输出镜配置在光纤的输出端,与激光元件的高反射层配合,作为第一波长光的谐振器。 输入反射镜设置在光纤的输入端,与输出反射镜配合,作为第二波长的谐振器。 偏振模式控制器将从光纤入射的光转换成用于激光元件的本征极化波的光,并将转换的光输出到激光元件。 此外,光束变换器将从偏振模式控制器入射的光转换成光纤所需的形状,并将变换的光输出到光纤,反之亦然。
    • 42. 发明申请
    • Hingeless mirror decice and method of controlling the same
    • 无声镜镜片及其控制方法
    • US20050041279A1
    • 2005-02-24
    • US10920445
    • 2004-08-18
    • Kiyoyuki Kawai
    • Kiyoyuki Kawai
    • G02B26/08G02B26/00
    • G02B26/0841
    • A hingeless mirror device includes a conductor portion having electrical-conductivity for forming a closed spacing, a planar conductor mirror stored in the closed spacing, a plurality of electrodes mutually insulated and disposed on a conductor via an insulative substrate, a transparent electrode provided above an opening of the conductor, a power supply section which supplies voltages to the conductor and transparent electrode, and a control section which supplies control voltages to the plurality of electrodes, and which causes the closed spacing to generate an electrostatic force, thereby controlling a tilt angle of the conductor mirror. According to the hingeless mirror device, since the conductor portion is stabilized in potential, an unnecessary electrostatic force and the like do not occur, thereby enabling the control to be securely performed.
    • 铰链式镜装置包括具有用于形成闭合间隔的导电性的导体部分,以闭合间隔形式存储的平面型导体镜;经由绝缘基板相互绝缘并设置在导体上的多个电极, 导体的开路,向导体和透明电极供给电压的电源部,以及向多个电极供给控制电压的控制部,使闭合间隔产生静电力,由此控制倾斜角 的导体镜。 根据无铰链镜装置,由于导体部分的电位稳定,不会发生不必要的静电力等,从而能够可靠地进行控制。
    • 47. 发明授权
    • Addition signal multiplexing apparatus for a television system
    • 用于电视系统的附加信号多路复用装置
    • US5146327A
    • 1992-09-08
    • US598626
    • 1990-10-11
    • Yoshio SugimoriYoshihide KimataYoshihiko OgawaKiyoyuki Kawai
    • Yoshio SugimoriYoshihide KimataYoshihiko OgawaKiyoyuki Kawai
    • H04N7/00H04N7/015H04N7/08H04N7/081
    • H04N7/015H04N7/007H04N7/08Y10S348/904
    • The present invention is ingeniously conceived for a transmission system for a first television signal so as to enable a first television signal of a wide aspect screen to be transmitted in one channel and the transmitted television signal to be reproduced on a receiver of a conventional aspect screen. To this end, a screen dividing circuit (12) divides a wide aspect screen signal into a center panel signal and side panel signals. The center panel signal is supplied via a delay circuit (13) to an adder (16). The side panel signals are so allocated as to provide horizontal and vertical signals. The horizontal side signal is supplied via a horizontal overscan multiplexing circuit 16 to the adder (16) where it is multiplexed on a horizontal overscan area of the center panel signal. In the vertical overscan multiplexing circuit, the vertical side signal is time compressed and reverse processed for each line to provide it in a continuous form. The output of a vertical overscan multiplexing circuit (20) is supplied to a switch (18) where it is time division multiplexed on vertical overscan areas of the center panel signal which is sent from the adder (16) via a delay circuit (17).
    • PCT No.PCT / JP90 / 00136 Sec。 371 1990年10月11日第 102(e)1990年10月11日PCT PCT 1990年2月5日提交PCT公布。 出版物WO90 / 09719 日期1990年08月23日。本发明巧妙地构思了用于第一电视信号的传输系统,以便能够在一个信道中发送宽屏幕屏幕的第一电视信号,并将所发送的电视信号再现在 常规方面屏幕的接收器。 为此,屏幕分割电路(12)将宽屏幕屏幕信号分成中央面板信号和侧面板信号。 中央面板信号通过延迟电路(13)提供给加法器(16)。 侧面板信号如此分配,以提供水平和垂直信号。 水平侧信号通过水平过扫描多路复用电路16提供给加法器(16),在加法器16中多路复用在中央面板信号的水平过扫描区域上。 在垂直过扫描多路复用电路中,垂直方向信号对于每条线进行时间压缩和反向处理,以连续的形式提供。 垂直过扫描多路复用电路(20)的输出被提供给开关(18),在开关(18)上经由延迟电路(17)从加法器(16)发送的中心面板信号的垂直过扫描区域上进行时分复用, 。
    • 48. 发明授权
    • Digital video signal noise-reduction apparatus with high pass and low
pass filter
    • 数字视频信号降噪装置,具有高通和低通滤波器
    • US5107340A
    • 1992-04-21
    • US628988
    • 1990-12-17
    • Toru HirataMasahiro YamadaSeijiro YasukiKiyoyuki Kawai
    • Toru HirataMasahiro YamadaSeijiro YasukiKiyoyuki Kawai
    • H04N5/21H04N9/64
    • H04N9/646H04N5/21
    • A noise-reduction apparatus is disclosed which reduces noise contained in a digital video signal. A two-frame difference detecting unit receives the digital video signal and detects a two-frame difference signal. A high-frequency component extracting unit extracts a high-frequency component of the digital video signal or a high-frequency component of the two-frame difference signal. A first elimination signal generating unit generates a first elimination signal corresponding to the two-frame difference signal. A frame difference detecting unit received the digital video signal and detects a frame difference signal. A low-frequency component extracting unit extracts a low-frequency component of the digital video signal or a low-frequency component of the frame difference signal. A second elimination signal generating unit generates a second elimination signal corresponding to the frame difference signal. A noise elimination unit eliminates the noise from the digital video signal in accordance with the first and second elimination signals.
    • 公开了降低数字视频信号中包含的噪声的降噪装置。 两帧差分检测单元接收数字视频信号并检测两帧差分信号。 高频分量提取单元提取数字视频信号的高频分量或两帧差分信号的高频分量。 第一消除信号产生单元产生对应于两帧差分信号的第一消除信号。 帧差检测单元接收数字视频信号并检测帧差信号。 低频分量提取单元提取数字视频信号的低频分量或帧差信号的低频分量。 第二消除信号生成单元生成与帧差信号对应的第二消除信号。 噪声消除单元根据第一和第二消除信号消除数字视频信号的噪声。
    • 49. 发明授权
    • Frequency-division multiplexing arrangement for preventing interference
between a main television signal and a helper signal thereof
    • 频分复用装置,用于防止主电视信号与其辅助信号之间的干扰
    • US5067018A
    • 1991-11-19
    • US531745
    • 1990-06-01
    • Noriya SakamotoSeijiro YasukiKiyoyuki Kawai
    • Noriya SakamotoSeijiro YasukiKiyoyuki Kawai
    • H04N7/00H04N7/015H04N7/045H04N7/08H04N7/081H04N11/24
    • H04N7/007H04N11/006H04N7/015H04N7/045
    • A main signal as the existing television signal and a helper signal for high definition are prepared in a transmitter. The energy of the main signal for a plurality of pixels is sequentially detected by an energy detector constituted by an absolute value circuit and an accumulator. The helper signal is controlled by a level controller, constituted by an adder and a divider, in such a way that its level follows according to the level of the detected energy. The level-controlled helper signal is frequency-multiplexed with the main signal having a frequency band of a removed region by a frequency multiplexer. A frequency-multiplexed signal separator of a receiver separates the mutiplexed signal into the main signal and the helper signal. The energy of the separated main signal for a plurality of pixels is sequentially detected by an energy detector constituted by an absolute value circuit and an accumulator. The separated helper signal has its frequency band restored to the original band from the removed region by a frequency domain restoring circuit. The restored helper signal is subjected to level control by a level controller, constituted by an adder and a multiplier, in the opposite characteristic to that of the sender side in accordance with the level of the detected energy.
    • 作为现有电视信号的主信号和用于高清晰度的辅助信号在发射机中准备。 由绝对值电路和累加器构成的能量检测器依次检测多个像素的主信号的能量。 辅助信号由电平控制器控制,电平控制器由加法器和分频器构成,其电平按照检测到的能量的电平进行跟踪。 电平控制的辅助信号通过频率复用器与具有去除区域的频带的主信号频率复用。 接收机的频率复用信号分离器将多路复用信号分离成主信号和辅助信号。 通过由绝对值电路和累加器构成的能量检测器依次检测多个像素分离的主信号的能量。 分离的辅助信号的频带通过频域恢复电路从去除的区域恢复到原始频带。 恢复的辅助信号由与加法器和乘法器构成的电平控制器根据检测能量的电平进行与发送侧相反的特性的电平控制。
    • 50. 发明授权
    • Sample rate conversion system having interpolation function with phase
locked clock
    • 具有锁相时钟插值功能的采样率转换系统
    • US4954824A
    • 1990-09-04
    • US244295
    • 1988-09-15
    • Masahiro YamadaKiyoyuki Kawai
    • Masahiro YamadaKiyoyuki Kawai
    • H03L7/06G01R25/00H03H17/00H03H17/06H04B14/04H04L7/00
    • H03H17/0628G01R25/00
    • A sample rate conversion circuit converts first digital data processed by a first clock signal having a first frequency into digital data processed by a second clock signal having a second frequency. A ring oscillator has a predetermined number of voltage-controlled gate delay elements connected to each other in the form of a loop so as to output polyphase delay clock signals and a predetermined self-excited oscillation signal. A phase-locking circuit applies a control voltage corresponding to a phase difference between the first clock signal and the self-excited oscillation signal to each of the voltage-controlled gate delay elements so as to phase-lock the first clock signal with the self-excited oscillation signal output from the ring oscillator. A latch circuit latches the polyphase delay clock signals output from the ring oscillator in accordance with the second clock signal. An interpolation coefficient generator generates an interpolation coefficient corresponding to phase data between the first and second clock signals in accordance with the polyphase delay clock signals latched by the latch circuit. An interpolating circuit interpolates two adjacent data of the first digital data by using the interpolation coefficient generated by the interpolation coefficient generator and outputting the interpolated data as the second digital data.
    • 采样率转换电路将由具有第一频率的第一时钟信号处理的第一数字数据转换成由具有第二频率的第二时钟信号处理的数字数据。 环形振荡器具有以循环形式彼此连接的预定数量的压控门延迟元件,以输出多相延迟时钟信号和预定的自激振荡信号。 相位锁定电路将对应于第一时钟信号和自激振荡信号之间的相位差的控制电压施加到每个压控门延迟元件,以便以自相关锁定第一时钟信号, 激励的振荡信号从环形振荡器输出。 锁存电路根据第二时钟信号锁存从环形振荡器输出的多相延迟时钟信号。 内插系数发生器根据由锁存电路锁存的多相延迟时钟信号产生与第一和第二时钟信号之间的相位数据对应的内插系数。 内插电路通过使用由内插系数发生器生成的插值系数来内插第一数字数据的两个相邻数据,并输出插值数据作为第二数字数据。