Method of forming a diffractive device
    8.
    发明申请
    Method of forming a diffractive device 审中-公开
    形成衍射装置的方法

    公开(公告)号:US20070109643A1

    公开(公告)日:2007-05-17

    申请号:US10562306

    申请日:2004-07-07

    IPC分类号: G02B5/18 G02B27/44

    CPC分类号: B42F1/00

    摘要: There is disclosed a method of forming a diffractive authentication device which generates an optically variable image which varies according to the angle of observation. The method comprises the steps of, providing a primary pattern which encodes a latent image, the primary pattern having a plurality of image elements, and providing a corresponding secondary pattern which will decode the primary pattern to allow the latent image to be observed when the primary and secondary patterns are in at least one registration, wherein the secondary pattern is provided by a diffraction grating microstructure having a plurality of each of at least two different types of diffraction elements. The primary pattern is provided such that predetermined image elements of the primary pattern render diffraction effects from predetermined diffraction elements of the diffraction grating microstructure optically ineffective at least at one observation angle when the authentication device is illuminated with a light source to thereby enable the latent image to be observed.

    摘要翻译: 公开了一种形成衍射认证装置的方法,其产生根据观察角度而变化的光学可变图像。 该方法包括以下步骤:提供对潜像进行编码的主要图案,主图案具有多个图像元素,并提供对应的次图案,其将对主图案进行解码,以允许当主图像被观察时潜象被观察 并且次级图案处于至少一个配准中,其中所述二次图案由具有至少两种不同类型的衍射元件中的每一种的衍射光栅微结构提供。 提供主图案,使得当使用光源照射认证装置时,至少在一个观察角度,原始图案的预定图像元素呈现衍射光栅微结构的预定衍射元件的衍射效应在光学上无效,从而使得潜像 要观察。

    String bending device for stringed musical instruments
    9.
    发明申请
    String bending device for stringed musical instruments 失效
    弦乐器弦乐器

    公开(公告)号:US20060213350A1

    公开(公告)日:2006-09-28

    申请号:US11090757

    申请日:2005-03-25

    申请人: Timothy Davis

    发明人: Timothy Davis

    IPC分类号: G10D3/00

    CPC分类号: G10D3/143

    摘要: A string bending device for stringed instruments and methods of use are claimed. The novel device permits the user to tension a string to change the pitch and tone by means of a tension arm and attached string pad. The string pad is unique in that it possesses an arcuate channel that acts as a string guide and promotes string life by gently bending the string along the arcuate channel and distributing pressure along a length of the string rather than at one point. The device may be repositioned during play so that other strings can be individually bent. The use of a plunger that may be easily disengaged and reengaged during the playing of the instrument allows the tension arm to easily be repositioned by sliding the tension arm along a rail system. Adjustable tension arm stops permit the user to predetermine the maximum tension that can be applied to each string.

    摘要翻译: 要求用于弦乐器和使用方法的弦弯曲装置。 新颖的装置允许用户张紧绳子以通过张力臂和附接的绳垫来改变间距和音调。 绳垫是独特的,因为它具有弓形通道,其作为弦引导件并且通过沿着弓形通道轻轻地弯曲弦并且沿着弦的长度而不是在一点分布压力来促进弦的寿命。 该装置可以在播放期间重新定位,以便其他弦可以单独弯曲。 在演奏乐器期间可以容易地分离和重新接合的柱塞的使用允许张力臂通过沿着轨道系统滑动张紧臂来容易地重新定位。 可调节张力臂停止允许用户预先确定可应用于每个弦的最大张力。

    Zero-bias-power level shifting
    10.
    发明申请
    Zero-bias-power level shifting 有权
    零偏置功率电平转换

    公开(公告)号:US20060164148A1

    公开(公告)日:2006-07-27

    申请号:US11042009

    申请日:2005-01-25

    申请人: Timothy Davis

    发明人: Timothy Davis

    IPC分类号: H03L5/00

    CPC分类号: H03K19/00323 H03K19/0016

    摘要: A circuit for voltage level translation with zero static current is disclosed for interfacing devices at one supply voltage with devices at another supply voltage. The translation is achieved by using a modified current mirror circuit such that the current mirror is effectively turned off when the output reaches a steady state condition.

    摘要翻译: 公开了一种具有零静态电流的电压电平转换电路,用于在一个电源电压下将器件与另一电源电压的器件进行接口。 通过使用修改的电流镜电路来实现平移,使得当输出达到稳定状态时,电流镜被有效地截止。