Light projection unit, image reading device including same, and image forming apparatus including the image reading device
    22.
    发明授权
    Light projection unit, image reading device including same, and image forming apparatus including the image reading device 有权
    光投影单元,包括其的图像读取装置和包括图像读取装置的图像形成装置

    公开(公告)号:US08643917B2

    公开(公告)日:2014-02-04

    申请号:US13685759

    申请日:2012-11-27

    Inventor: Masatoshi Ishida

    Abstract: A light projection unit includes a substrate, a plurality of light emitting elements arrayed on the substrate in a main scanning direction and including light emitting surfaces, a light guide facing the light emitting surfaces to direct light projected from the light emitting elements onto an illumination target and including a first positioning portion, and a holder including a second positioning portion that engages the first positioning portion of the light guide to position the light guide on the holder. The first positioning portion of the light guide is positioned between centers of light emission of adjacent light emitting elements in the main scanning direction of the substrate when the first positioning portion engages the second positioning portion of the holder.

    Abstract translation: 光投射单元包括基板,在主扫描方向上排列在基板上并包括发光面的多个发光元件,面向发光面的光导,将从发光元件射出的光引导到照明对象 并且包括第一定位部分和包括接合光导的第一定位部分的第二定位部分的保持器,以将光导定位在保持器上。 当第一定位部分接合保持器的第二定位部分时,光导的第一定位部分位于相邻发光元件的发光中心之间的基板的主扫描方向上。

    Light Projection unit, image reading device including same, and image forming apparatus including the image reading device
    23.
    发明申请
    Light Projection unit, image reading device including same, and image forming apparatus including the image reading device 有权
    光投影单元,包括其的图像读取装置,以及包括图像读取装置的图像形成装置

    公开(公告)号:US20100232834A1

    公开(公告)日:2010-09-16

    申请号:US12659605

    申请日:2010-03-15

    Inventor: Masatoshi Ishida

    Abstract: A light projection unit includes a substrate, a plurality of light emitting elements arrayed on the substrate in a main scanning direction and including light emitting surfaces, a light guide facing the light emitting surfaces to direct light projected from the light emitting elements onto an illumination target and including a first positioning portion, and a holder including a second positioning portion that engages the first positioning portion of the light guide to position the light guide on the holder. The first positioning portion of the light guide is positioned between centers of light emission of adjacent light emitting elements in the main scanning direction of the substrate when the first positioning portion engages the second positioning portion of the holder.

    Abstract translation: 光投射单元包括基板,在主扫描方向上排列在基板上并包括发光面的多个发光元件,面向发光面的光导,将从发光元件射出的光引导到照明对象 并且包括第一定位部分和包括接合光导的第一定位部分的第二定位部分的保持器,以将光导定位在保持器上。 当第一定位部分接合保持器的第二定位部分时,光导的第一定位部分位于相邻发光元件的发光中心之间的基板的主扫描方向上。

    Television receiver and electronic device
    24.
    发明授权
    Television receiver and electronic device 有权
    电视接收机和电子设备

    公开(公告)号:US07571491B2

    公开(公告)日:2009-08-04

    申请号:US10588608

    申请日:2005-02-04

    CPC classification number: H04N21/42623 G06F21/86 H04N7/163 H04N21/4424

    Abstract: In a television receiver having a decryption unit and a video display unit which are stored in one casing, copyright protection is given to an encrypted digital video signal or analog video signal.When an encrypted digital video signal is inputted to a digital video signal input terminal, the signal is decrypted by a decoding circuit to obtain an after-decryption video signal that is copiable, and thereafter, the signal is visualized by a video display unit. When a casing cover is opened, a decoding control circuit converts a parameter that is needed for decryption, such as an encryption key, into a meaningless parameter, and outputs it to the decoding circuit, whereby the after-decryption video signal becomes a video signal that is not decrypted.On the other hand, during maintenance, a predetermined code is inputted from a button group (18) to output a regular decryption parameter to the decoding circuit (13).

    Abstract translation: 在具有存储在一个外壳中的解密单元和视频显示单元的电视接收机中,对加密的数字视频信号或模拟视频信号给予版权保护。 当加密的数字视频信号被输入到数字视频信号输入端时,由解码电路对信号进行解密以获得可解密的解密后的视频信号,之后由视频显示单元显示该信号。 当外壳盖打开时,解码控制电路将诸如加密密钥的解密所需的参数转换为无意义参数,并将其输出到解码电路,由此解密后视频信号变为视频信号 那没有解密。 另一方面,在维护期间,从按钮组(18)输入规定的代码,向解码电路(13)输出规则的解密参数。

    Nonlinear signal generating circuit and nonlinear compensating device
using the same
    26.
    发明授权
    Nonlinear signal generating circuit and nonlinear compensating device using the same 失效
    非线性信号发生电路和使用其的非线性补偿装置

    公开(公告)号:US4902983A

    公开(公告)日:1990-02-20

    申请号:US151333

    申请日:1988-02-02

    CPC classification number: H03F1/3252 H03F1/3276

    Abstract: A device for compensating for nonlinearity of amplifiers by use of a predistortion principle, and a nonlinear signal generating circuit built in such a device. The nonlinear signal generating circuit includes a quadrature hybrid of the type using a distributed constant line. Two diodes and a terminal resistor are connected in parallel and opposite in polarity to each other and connected between the terminals of coupling and passing ports of the hybrid and ground. The nonlinear compensating device is constituted by the combination of a plurality of quadrature hybrids of the type using a distributed constant line and various kinds of diodes. All the circuit segments of the device are implemented with a planar circuit provided on a single dielectric substrate and diodes which are held in a pair chip condition. Such circuitry is accommodated in a single air-tight housing to complete a microwave integrated circuit.

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