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    • 2. 发明申请
    • Signal cutout device, optical connector and optical fiber coupler
    • 信号切断装置,光连接器和光纤耦合器
    • US20050157982A1
    • 2005-07-21
    • US10503365
    • 2003-05-20
    • Kanji ShishidoHiroshi IshikawaMasahiro Nakamura
    • Kanji ShishidoHiroshi IshikawaMasahiro Nakamura
    • G02B6/02G02B6/34G02B6/38G02B6/42
    • G02B6/3845G02B6/02085G02B6/02138G02B6/3826G02B6/3846G02B6/4246
    • A signal cut-off device 4 includes an optical fiber which has a clad 42 on the outer periphery of a core 41, and first and second variation sections of a refractive index, 41a and 41b in which the period of a grating varies gradually along an optical axis are serially formed in the longitudinal direction of the core 41. An optical connector which is detachably connected to the predetermined place of an optical transmission line includes a housing which has a plug-styled portion at a front end part and a jack-styled portion at a rear end part, and a ferrule which is mounted in the plug-styled portion. The signal cut-off device 4 is installed in the hole of the ferrule. An optical fiber coupler includes a coupler body which multiplexes/demultiplexes an uplink signal (1260-1360 nm) and a downlink signal (1480-1580 nm), a COM port which is provided on the input side of the coupler body, and a 1.55 port and a 1.3 port which are provided on the output side of the coupler body. A second connector is mounted on the end part of an optical fiber constituting the COM port, a PD is mounted on the end part of an optical fiber constituting the 1.55 port, and an LD is mounted on the end part of an optical fiber constituting the 1.3 port.
    • 信号截止装置4包括在芯41的外周具有包层42的光纤,以及光栅的周期逐渐变化的折射率41a和41b的第一和第二变化部分 沿着光轴顺序地形成在光纤41的纵向方向上的光连接器。可拆卸地连接到光传输线的预定位置的光学连接器包括在前端部具有插头型部分的插座和插座 在后端部的台阶部,以及安装在插头型部中的套圈。 信号切断装置4安装在套圈的孔中。 一种光纤耦合器包括一个耦合器体,它将上行链路信号(1260-1360nm)和一个下行链路信号(1480-1580nm)进行复用/解复用,一个设置在耦合器主体的输入侧的COM端口和一个1.55 端口和1.3端口,其设置在耦合器主体的输出侧。 第二连接器安装在构成COM端口的光纤的端部上,PD安装在构成1.55端口的光纤的端部上,LD安装在构成该端口的光纤的端部上 1.3端口
    • 7. 发明授权
    • Access device, information recording device, controller, and information recording system
    • 访问设备,信息记录设备,控制器和信息记录系统
    • US08914579B2
    • 2014-12-16
    • US12867543
    • 2009-02-27
    • Takuji MaedaShigekazu KogitaShinji InoueHiroki EtohMakoto OchiMasahiro Nakamura
    • Takuji MaedaShigekazu KogitaShinji InoueHiroki EtohMakoto OchiMasahiro Nakamura
    • G06F12/00G06F12/02G06F12/08
    • G06F12/0246G06F12/0866G06F12/0888G06F2212/1036G06F2212/7203
    • Provided is a method that, in the case of managing areas of a non-volatile memory of an information recording module by a file system, increases the speed of processing for writing file data and file system management information, and furthermore prevents a decrease in the rewriting lifetime of the non-volatile memory. The information recording module (2) is provided with a page cache control unit (217) that stores page cache information (224) in the non-volatile memory (22) of the information recording module (2) and performs control such that a specific physical block is used as a cache when writing small-sized data. Also, an access module (1) is provided with a page cache information setting unit (104) that sets information necessary for page cache control in the information recording module (2). The combination of the access module (1) and the information recording module (2) prevents the execution of needless saving process with use of page caching when writing small-sized data, thereby increasing the speed of writing processing.
    • 提供了一种在通过文件系统管理信息记录模块的非易失性存储器的区域的情况下增加用于写入文件数据和文件系统管理信息的处理速度的方法,并且进一步防止 重写非易失性存储器的使用寿命。 信息记录模块(2)设置有页面缓存控制单元(217),其将页面缓存信息(224)存储在信息记录模块(2)的非易失性存储器(22)中,并执行控制,使得特定 当写入小尺寸数据时,物理块用作缓存。 此外,访问模块(1)具有在信息记录模块(2)中设置页面缓存控制所需的信息的页面缓存信息设置单元(104)。 访问模块(1)和信息记录模块(2)的组合在写小尺寸数据时防止使用页面缓存来执行不必要的保存处理,从而提高写入处理的速度。
    • 9. 发明授权
    • High speed writing mode in memory controller, nonvolatile storage device, accessing device, nonvolatile storage system, and method and program for writing data
    • 存储器控制器,非易失性存储设备,访问设备,非易失性存储系统以及用于写入数据的方法和程序的高速写入模式
    • US08688896B2
    • 2014-04-01
    • US13058352
    • 2010-05-13
    • Masahiro NakamuraHirokazu SoMasahiro Nakanishi
    • Masahiro NakamuraHirokazu SoMasahiro Nakanishi
    • G06F12/00G06F13/00G06F13/28
    • G06F12/0246G06F2212/7203
    • A digital still camera performs temporary high-speed writing when capturing a large number of images in a short time. Lengthy processing for erased block allocation or copying performed inside a nonvolatile storage device may disable the captured images to be written completely (may cause some frames to drop). A nonvolatile storage system includes an access device (1001) and a nonvolatile storage device (1002). A button operation of a user on the access device (1001) causes the mode of data writing to the nonvolatile storage device (1002) to be switched. Temporary high-speed writing is performed into a physical block of a nonvolatile memory (27) from which a plurality of data pieces with different logical addresses and different data sizes have been erased. After the temporary high-speed writing, the written data is relocated into a user storage area (272), and an erased block is newly allocated for subsequent temporary high-speed data writing.
    • 当在短时间内捕获大量图像时,数字静态照相机执行临时高速写入。 在非易失性存储设备内执行的擦除块分配或复制的长时间处理可以禁止捕获的图像被完全写入(可能导致一些帧丢失)。 非易失性存储系统包括访问设备(1001)和非易失性存储设备(1002)。 访问设备(1001)上的用户的按钮操作使得切换到非易失性存储设备(1002)的数据写入模式。 临时高速写入被执行到非易失性存储器(27)的物理块中,具有不同逻辑地址和不同数据大小的多个数据片已经被擦除。 在临时高速写入之后,写入的数据被重新定位到用户存储区域(272)中,并且新分配擦除块用于随后的临时高速数据写入。