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    READ PATH COMPENSATION FOR SNR AND SIGNAL TRANSFER
    4.
    发明申请
    READ PATH COMPENSATION FOR SNR AND SIGNAL TRANSFER 有权
    用于SNR和信号传输的读取路径补偿

    公开(公告)号：US20120033319A1

    公开(公告)日：2012-02-09

    申请号：US12851827

    申请日：2010-08-06

    申请人： John Contreras ,  Tatemi Ido ,  Nobumasa Nishiyama ,  Xinzhi Xing

    发明人： John Contreras ,  Tatemi Ido ,  Nobumasa Nishiyama ,  Xinzhi Xing

    IPC分类号： G11B5/09

    CPC分类号： G11B5/02 ,  G11B20/10018 ,  G11B2220/2516

    摘要： A method and apparatus is provided for extending a read bandwidth and increasing a high-frequency signal-to-noise ratio (SNR) of a front-end of a read path of a hard disk drive (HDD) by introducing a high impedance section at the front-end of the read path. The high impedance section may mitigate capacitive effects found at the front-end of the read path, thereby improving signal transfer by extending the read bandwidth.

    摘要翻译： 提供一种方法和装置，用于通过将高阻抗部分引入到硬盘驱动器（HDD）的读取路径的前端来扩展读取带宽并增加高频信噪比（SNR） 读取路径的前端。 高阻抗部分可以减轻在读取路径前端发现的电容效应，从而通过扩展读取带宽来改善信号传输。

    Optical waveguide apparatus
    5.
    发明授权
    Optical waveguide apparatus 失效
    光波导装置

    公开(公告)号：US07289702B2

    公开(公告)日：2007-10-30

    申请号：US10535704

    申请日：2003-02-13

    申请人： Makoto Takahashi ,  Tatemi Ido ,  Hirohisa Sano ,  Nobuo Miyadera

    发明人： Makoto Takahashi ,  Tatemi Ido ,  Hirohisa Sano ,  Nobuo Miyadera

    IPC分类号： G02B6/26

    CPC分类号： G02B6/29368 ,  G02B6/2938

    摘要： The present invention provides an optical module using optical waveguides which permits easy fabrication of a PLC type optical multiplexer/demultiplexer with reduced loss. The optical module comprises cores which are contiguous to each other through a dicing groove adapted to position and fix an optical functional part such as a wavelength selection filter and a core branched from the said cores. A slight gap is present between the former and the latter core and both cores are narrower in width in the vicinity of the dicing groove than the other portions.

    摘要翻译： 本发明提供一种使用光波导的光学模块，其允许容易地制造具有降低的损耗的PLC型光复用器/解复用器。 光学模块包括通过适于定位和固定诸如波长选择滤光器和从所述芯分支的芯的光学功能部件的切割槽彼此连续的芯。 在前者和后一个芯之间存在轻微的间隙，并且两个芯在切割槽附近的宽度窄于其它部分。

    Optical fiber communication equipment and its applied optical systems
    7.
    发明授权
    Optical fiber communication equipment and its applied optical systems 有权
    光纤通信设备及其应用光学系统

    公开(公告)号：US07164865B2

    公开(公告)日：2007-01-16

    申请号：US09814693

    申请日：2001-03-15

    申请人： Kimio Tatsuno ,  Tatemi Ido ,  Yasunori Iwafuji ,  Hideyuki Kuwano ,  Naohiko Baba

    发明人： Kimio Tatsuno ,  Tatemi Ido ,  Yasunori Iwafuji ,  Hideyuki Kuwano ,  Naohiko Baba

    IPC分类号： H04B10/04 ,  H04B10/12 ,  H04J14/02 ,  H01S3/10 ,  H01S3/13

    CPC分类号： H01S5/0687 ,  H01S5/005 ,  H01S5/02216 ,  H01S5/02248 ,  H01S5/06804 ,  H01S5/4087

    摘要： An object of disclosed technology is to control lasing wavelengths so that a wavelength shift does not occurs. Another object is to permit wavelengths of a light source for wavelength division multiplexing optical-fiber communication system to be variable in response to an ITU-TS grid. A means for achieving the objects is as follows: locating an etalon in a light path of diode laser light, which is a parallel plane wave changed by a collimator lens; generating a wavelength error signal from a difference between both of divided pieces of light from transmitted light or reflected light; and locking a wavelength of a diode laser device according to the wavelength error signal.

    摘要翻译： 所公开的技术的目的是控制激光波长，使得波长偏移不发生。 另一个目的是允许用于波分复用光纤通信系统的光源的波长响应ITU-TS网格而变化。 用于实现目的的手段如下：将准直透镜改变的平行平面波的二极管激光光路中的标准具定位; 根据来自透射光或反射光的分割光之间的差产生波长误差信号; 并根据波长误差信号锁定二极管激光器件的波长。

    Semiconductor storage device having a plurality of stacked memory chips
    8.
    发明申请
    Semiconductor storage device having a plurality of stacked memory chips 有权
    具有多个层叠的存储芯片的半导体存储装置

    公开(公告)号：US20060233012A1

    公开(公告)日：2006-10-19

    申请号：US11392805

    申请日：2006-03-30

    申请人： Tomonori Sekiguchi ,  Hideki Osaka ,  Tatemi Ido ,  Osamu Nagashima ,  Mitsuaki Katagiri ,  Ichiro Anjo

    发明人： Tomonori Sekiguchi ,  Hideki Osaka ,  Tatemi Ido ,  Osamu Nagashima ,  Mitsuaki Katagiri ,  Ichiro Anjo

    IPC分类号： G11C5/02

    CPC分类号： G11C8/12 ,  G11C5/02 ,  G11C5/04 ,  G11C11/4074 ,  G11C11/4096 ,  H01L24/50

    摘要： A semiconductor storage employs a base substrate (101) having a command/address external terminal group (CA), a data input/output external terminal group (DQ), and a single chip select external terminal (CS), and also comprises a plurality of memory chips (110) to (113) mounted on a base substrate (101), each of which can individually carry out read and write operations. The terminals (CA), (DQ), and (CS) are connected to an interface chip (120). The interface chip (120) has a chip select signal generation circuit that can individually activate a plurality of memory chips (110) to (113) on the basis of an address signal fed by way of the terminal (CA) and on the basis of a chip select signal fed by way of the terminal (CS).

    摘要翻译： 半导体存储器使用具有命令/地址外部端子组（CA），数据输入/输出外部端子组（DQ）和单个芯片选择外部端子（CS）的基底（101），并且还包括多个 的安装在基板（101）上的存储芯片（110）至（113），每个可独立地进行读写操作。 端子（CA），（DQ）和（CS）连接到接口芯片（120）。 接口芯片（120）具有芯片选择信号生成电路，该电路可以基于通过终端（CA）馈送的地址信号，并基于以下方式单独激活多个存储器芯片（110）〜（113） 通过端子（CS）馈送的芯片选择信号。

    Optical disc drive
    9.
    发明授权
    Optical disc drive 有权
    光盘驱动器

    公开(公告)号：US08665681B2

    公开(公告)日：2014-03-04

    申请号：US12285821

    申请日：2008-10-15

    申请人： Akira Kitayama ,  Tatemi Ido ,  Nobuaki Sato ,  Hiroharu Sakai ,  Kouichi Ihara

    发明人： Akira Kitayama ,  Tatemi Ido ,  Nobuaki Sato ,  Hiroharu Sakai ,  Kouichi Ihara

    IPC分类号： G11B7/00

    CPC分类号： G11B7/00456

    摘要： There is provided an optical disc drive comprises an optical pick-up including a laser diode (LD) and a laser diode driver (LDD) for driving the laser diode, a digital signal processor (DSP) including a write strategy circuit and low voltage differential signaling (LVDS) drivers for transmitting a produced write strategy signal, a circuit board having the DSP mounted thereon and including a line for transmitting the write strategy signal, a transmission line connecting the circuit board and the LDD and transmitting a write strategy signal, and differential resistors connected between differential lines of outputs of the LVDS drivers. Especially, a resistor having a resistance value in a range of 80 to 500Ω is inserted between the differential lines of outputs of the LVDS driver inside the DSP.

    摘要翻译： 提供了一种光盘驱动器，其包括：光拾取器，包括用于驱动激光二极管的激光二极管（LD）和激光二极管驱动器（LDD）;数字信号处理器（DSP），包括写策略电路和低电压差 用于发送产生的写入策略信号的信令（LVDS）驱动器，安装有DSP的电路板，并且包括用于发送写入策略信号的线路，连接电路板和LDD的传输线，并发送写入策略信号，以及 差分电阻连接在LVDS驱动器的输出差分线路之间。 特别地，在DSP内部的LVDS驱动器的输出的差分线之间插入电阻值为80〜500Ω的电阻。

    Radio frequency circuit apparatus and radio frequency module
    10.
    发明授权
    Radio frequency circuit apparatus and radio frequency module 有权
    射频电路设备和射频模块

    公开(公告)号：US07848714B2

    公开(公告)日：2010-12-07

    申请号：US11334451

    申请日：2006-01-19

    申请人： Eriko Takeda ,  Akira Kuriyama ,  Tatemi Ido

    发明人： Eriko Takeda ,  Akira Kuriyama ,  Tatemi Ido

    IPC分类号： H01Q11/12 ,  H04B1/04

    CPC分类号： H03F1/0277 ,  H03F1/0205 ,  H03F3/211 ,  H03F3/24 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/294 ,  H03G1/0088

    摘要： A radio frequency circuit apparatus and a radio frequency module which permit alleviation of the PA efficiency drop and are compatible with both a MIMO system and a conventional system are to be provided. They are provided with a plurality of power amplifiers for amplifying a transmit signal and the plurality of power amplifiers include at least two power amplifiers differing in maximum output power from each other, and at least one out of the plurality of power amplifiers is used according to the communication system.

    摘要翻译： 提供一种射频电路装置和射频模块，其能够缓解PA效率下降并与MIMO系统和常规系统兼容。 它们设置有用于放大发射信号的多个功率放大器，并且多个功率放大器包括彼此最大输出功率不同的至少两个功率放大器，并且根据多个功率放大器中的至少一个功率放大器根据 通信系统。