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    • 1. 发明申请
    • Tunable LED module
    • 可调LED模块
    • US20090140278A1
    • 2009-06-04
    • US12216916
    • 2008-07-11
    • Etsuo KoyamaYasuo Nagai
    • Etsuo KoyamaYasuo Nagai
    • H01L33/00
    • H04B10/506H04B10/502H04B10/572
    • The objective of the invention is to provide with a tunable LED module capable of easily selecting a wavelength and reducing particular parts, comparing to that of prior art. The tunable LED module according to the present invention is applicable to a certain short range communication. The module comprises: an LED 1 capable of emitting a light with a certain wavelength band including a desire wavelength; a collimator 2 for collimating the divergent light from the LED 1; an etalon 3 working as a wavelength selector for selecting a light with a plurality of wavelengths including the desired wavelength from the light emitted from the LED 1; a BRF 4 working as an optical tuner selectively tunable the desired wavelength within the wavelengths selected by the wavelength selector; an optical coupler 5, which the light rejected by the BRF 4 enters to and couples with; a LED mounting element 6 made from a material with a high thermal conductivity, such as cupper, cupper alloy, and the like, the element 6 for mounting the LED 1; and an optical receiver 7 for detecting the power of the light with wavelengths excluding the tuned wavelength and then generating light level monitor signal representing the power of the detected light.
    • 本发明的目的是提供一种与现有技术相比能够容易地选择波长并减少特定部件的可调谐LED模块。 根据本发明的可调谐LED模块可应用于某种短距离通信。 该模块包括:能够发射包括期望波长的特定波长带的光的LED 1; 用于准直来自LED 1的发散光的准直器2; 作为波长选择器的标准具3用于从LED 1发射的光中选择包括所需波长的多个波长的光; 用作光学调谐器的BRF 4选择性地调节由波长选择器选择的波长内的期望波长; 光耦合器5,其被BRF 4所拒绝的光进入和耦合; 由具有高导热性的材料制成的LED安装元件6,例如铜,铜合金等,用于安装LED 1的元件6; 以及光接收器7,用于检测除了调谐波长之外的波长的光的功率,然后产生表示检测到光的功率的光级监视信号。
    • 4. 发明授权
    • Disk recording and reproducing apparatus
    • 磁盘记录和再现装置
    • US5828632A
    • 1998-10-27
    • US858585
    • 1997-05-19
    • Yasuo Nagai
    • Yasuo Nagai
    • G11B7/085G11B7/14G11B19/28G11B20/10G11B21/08G11B27/10G11B7/00
    • G11B7/14G11B19/28G11B21/083G11B27/105G11B7/08505
    • A multi-head disk recording and reproducing apparatus, wherein sector synchronization signals obtained from a first optical pick-up and a second optical pick-up are input to a phase comparator where phases are compared, and a preceding sector synchronization signal is output to an overall control unit. In the overall control unit, the processing is carried out with respect to a first optical pick-up and second optical pick-up by a procedure using this input preceding sector synchronization signal as a reference. First, during a term where addresses are determined in the pick-ups, a sled servo and a spindle servo operation are carried out with respect to each pick-up. When the maximum time t of phase deviation has elapsed and addresses are determined, a tracking servo, focus servo, laser control, and other operations are instructed to the control units based on the addresses.
    • 多头磁盘记录和再现装置,其中从第一光学拾取器和第二光学拾取器获得的扇区同步信号被输入到相位比较器的相位比较器,并且先前的扇区同步信号被输出到 总体控制单元。 在总体控制单元中,通过使用该输入的前一扇区同步信号作为参考的程序,对第一光学拾取器和第二光学拾取器进行处理。 首先,在拾取器中确定地址的术语中,相对于每个拾取器执行滑动伺服和主轴伺服操作。 当经过相位偏差的最大时间t并且确定了地址时,基于地址向控制单元指示跟踪伺服,聚焦伺服,激光控制等操作。
    • 5. 发明授权
    • Constraint-based spreadsheet system capable of displaying a process of
execution of programs
    • 基于约束的电子表格系统,能够显示执行程序的过程
    • US5799295A
    • 1998-08-25
    • US966741
    • 1997-11-10
    • Yasuo Nagai
    • Yasuo Nagai
    • G06F17/24G06F15/18
    • G06F17/246
    • A constraint-based spreadsheet system includes a direction discrimination section, a dependence information generating section, a program execution process information generating section, and a display section. The direction discrimination section discriminates whether constraint information, which corresponds to a formula which is a basic structural element of a program, has direction of calculation. The dependence information generating section generates dependence information between tables and within a table based on the direction of calculation discriminated by the direction discrimination section. The program execution process information generating section generates program execution process information using the dependence information. The display section displays the program execution process information.
    • 基于约束的电子表格系统包括方向鉴别部分,依赖性信息生成部分,程序执行处理信息产生部分和显示部分。 方向识别部判别与作为节目的基本结构要素的公式对应的约束信息是否具有计算方向。 依赖关系信息生成部根据由方向判别部判别出的计算方向,生成表之间和表内的依赖关系信息。 程序执行处理信息生成部使用依赖信息生成程序执行处理信息。 显示部显示程序执行处理信息。
    • 6. 发明申请
    • Tunable laser module
    • 可调激光模块
    • US20090154506A1
    • 2009-06-18
    • US12216917
    • 2008-07-11
    • Etsuo KoyamaYasuo Nagai
    • Etsuo KoyamaYasuo Nagai
    • H01S3/10H01S3/04H01S3/13
    • H01S5/0683H01S5/06825H01S5/06837H01S5/0687H01S5/141H04B10/572
    • The objective of the present invention is to provide with is to provide with a tunable laser module capable of adequately detecting the decay of the large variation in the wavelength of the light and then operating the shutter. The tunable laser module 1 comprises a tunable laser source 11˜13 capable of emitting light with a wavelength defined by wavelength control signal, and following controllers 14˜17, 18˜23, 24˜28. A temperature controller 14˜17 operates to perform the control of the temperature of the tunable laser source 11˜13. A wavelength controller 18˜23 operates to perform the control of the wavelength of the light emanating from the tunable laser source 11˜13. A power controller 24˜28 operates to perform the control of the power of the tunable laser source 11˜13. The tunable laser module 1 further comprises a stability discriminator 29, optical switch 30, 31, an optical terminator 32 for absorbing light entering herein, and an optical connector 33 for coupling its incident light with an external transmission line. The stability discriminator 29 discriminates whether the wavelength and the temperature are stable or not, based on both temperature control signal and wavelength control signal. When having discriminated that their stability was achieved, the discriminator 29 generates enable signal. The optical switch 30, 31 is capable of switching the optical path of the light emanating therefrom when receiving the enable signal.
    • 本发明的目的是提供一种能够适当地检测光的波长的大的变化的衰减然后操作快门的可调激光模块。 可调谐激光器模块1包括能够发射具有由波长控制信号定义的波长的光的可调激光源11〜13,以及随后的控制器14〜17,18〜23,24〜28。 温度控制器14〜17进行可调谐激光源11〜13的温度控制。 波长控制器18〜23对从可调激光源11〜13发出的光的波长进行控制。 功率控制器24〜28进行可调谐激光源11〜13的功率的控制。 可调谐激光器模块1还包括稳定鉴别器29,光开关30,31,用于吸收此处进入的光的光学终端器32和用于将其入射光与外部传输线耦合的光学连接器33。 基于温度控制信号和波长控制信号,稳定性鉴别器29鉴别波长和温度是否稳定。 鉴别器29鉴别出其稳定性时,产生使能信号。 当接收到使能信号时,光开关30,31能够切换从其发出的光的光路。
    • 8. 发明授权
    • Geographic information indicator, method for displaying geographic information and storage medium for storing program for executing the same
    • 地理信息指示符,用于显示地理信息的方法和用于存储执行该程序的存储介质
    • US06748383B1
    • 2004-06-08
    • US09680055
    • 2000-10-05
    • Kiyoshi WadaYasuo Nagai
    • Kiyoshi WadaYasuo Nagai
    • G06F1730
    • G06F17/30241Y10S707/919Y10S707/99942
    • The geographic information indicator further includes means for storing a range within which the data is stored in the local database in a form of a local database effective range information, local database effective range check means for deciding a first area within which the data is already stored in the local database and a second area within which the data is not stored in the local database, server-side database retrieval request means for inquiring the database server via the network about the data included in the second area, local database update means for additionally storing the data obtained as a retrieval result,in the local database and also updating the local database effective range information based on the second area, local database retrieval means for extracting the data included in the screen display range from the local database, and screen display means for displaying the data extracted from the local database on a screen.
    • 地理信息指示符还包括用于以本地数据库有效范围信息的形式存储数据存储在本地数据库中的范围的装置,用于确定已经存储了数据的第一区域的本地数据库有效范围检查装置 在本地数据库中,并且数据未存储在本地数据库中的第二区域,服务器侧数据库检索请求装置,用于经由网络向数据库服务器询问包括在第二区域中的数据,本地数据库更新装置,用于附加 将作为检索结果获得的数据存储在本地数据库中,并且还基于第二区域更新本地数据库有效范围信息,用于从本地数据库提取包括在屏幕显示范围中的数据的本地数据库检索装置,以及屏幕显示 用于在屏幕上显示从本地数据库提取的数据的装置。