Acoustic Touch Sensor
    1.
    发明申请
    Acoustic Touch Sensor 有权
    声学触摸传感器

    公开(公告)号:US20120182269A1

    公开(公告)日:2012-07-19

    申请号:US13184423

    申请日:2011-07-15

    IPC分类号: G06F3/043

    CPC分类号: G06F3/0436

    摘要: A touch sensor comprises a substrate capable of propagating acoustic waves and includes a first surface having a touch sensitive region. A first sidewall intersects the first surface along a first edge. The first edge is configured to propagate a first acoustic wave along the first edge. The first acoustic wave may be a one-dimensional edge wave. A wave converter converts the first acoustic wave to a second acoustic wave, and the first surface is configured to propagate the second acoustic wave across the touch sensitive region.

    摘要翻译: 触摸传感器包括能够传播声波的基板,并且包括具有触敏区域的第一表面。 第一侧壁沿着第一边缘与第一表面相交。 第一边缘被配置为沿着第一边缘传播第一声波。 第一声​​波可以是一维边缘波。 波变换器将第一声波转换为第二声波,并且第一表面被配置为传播第二声波跨越触敏区域。

    Acoustic touch sensor with low-profile diffractive grating transducer assembly
    2.
    发明授权
    Acoustic touch sensor with low-profile diffractive grating transducer assembly 有权
    具有低剖面衍射光栅换能器组件的声学触摸传感器

    公开(公告)号:US07456825B2

    公开(公告)日:2008-11-25

    申请号:US11544188

    申请日:2006-10-06

    IPC分类号: G06F3/043

    CPC分类号: G06F3/0436

    摘要: A touch sensor having an acoustic substrate, an acoustic transducer, and an acoustically diffractive grating is provided. The grating is disposed between the transducer and the substrate, so that acoustic energy from the transducer is coupled to an acoustic wave propagating along the surface of the substrate. If used in a display device, the combination of the transducer and grating may provide a low profile that allows the assembly to be more easily placed between the acoustic substrate and a bezel placed in front of the substrate. No acoustic components need be mounted on the rear surface of the substrate, allowing the acoustic substrate to be formed on the front surface of the display device.

    摘要翻译: 提供具有声学基底,声学换能器和声学衍射光栅的触摸传感器。 光栅设置在换能器和衬底之间,使得来自换能器的声能耦合到沿衬底表面传播的声波。 如果在显示装置中使用,则换能器和光栅的组合可以提供低轮廓,其允许组件更容易地放置在声学基底和放置在基底前面的边框之间。 在基板的后表面上不需要安装声学部件,从而可以在显示装置的前表面上形成声学基板。

    Acoustic touch sensor utilizing edge waves
    3.
    发明授权
    Acoustic touch sensor utilizing edge waves 有权
    使用边缘波的声学触摸传感器

    公开(公告)号:US08941624B2

    公开(公告)日:2015-01-27

    申请号:US13184423

    申请日:2011-07-15

    IPC分类号: G06F3/043

    CPC分类号: G06F3/0436

    摘要: A touch sensor comprises a substrate capable of propagating acoustic waves and includes a first surface having a touch sensitive region. A first sidewall intersects the first surface along a first edge. The first edge is configured to propagate a first acoustic wave along the first edge. The first acoustic wave may be a one-dimensional edge wave. A wave converter converts the first acoustic wave to a second acoustic wave, and the first surface is configured to propagate the second acoustic wave across the touch sensitive region.

    摘要翻译: 触摸传感器包括能够传播声波的基板,并且包括具有触敏区域的第一表面。 第一侧壁沿着第一边缘与第一表面相交。 第一边缘被配置为沿着第一边缘传播第一声波。 第一声​​波可以是一维边缘波。 波变换器将第一声波转换为第二声波,并且第一表面被配置为传播第二声波穿过触敏区域。

    Acoustic touch sensor
    4.
    发明授权
    Acoustic touch sensor 有权
    声学触摸传感器

    公开(公告)号:US08325159B2

    公开(公告)日:2012-12-04

    申请号:US11106394

    申请日:2005-04-13

    IPC分类号: G09G5/00

    CPC分类号: G06F3/0436

    摘要: A touch sensor comprises a substrate capable of propagating acoustic waves and includes a first surface having a touch sensitive region. A first sidewall intersects the first surface along a first edge. The first edge is configured to propagate a first acoustic wave along the first edge. The first acoustic wave may be a one-dimensional edge wave. A wave converter converts the first acoustic wave to a second acoustic wave, and the first surface is configured to propagate the second acoustic wave across the touch sensitive region.

    摘要翻译: 触摸传感器包括能够传播声波的基板,并且包括具有触敏区域的第一表面。 第一侧壁沿着第一边缘与第一表面相交。 第一边缘被配置为沿着第一边缘传播第一声波。 第一声​​波可以是一维边缘波。 波变换器将第一声波转换为第二声波,并且第一表面被配置为传播第二声波穿过触敏区域。

    Acoustic touch sensor with low-profile diffractive grating transducer assembly
    5.
    发明授权
    Acoustic touch sensor with low-profile diffractive grating transducer assembly 有权
    具有低剖面衍射光栅换能器组件的声学触摸传感器

    公开(公告)号:US07119800B2

    公开(公告)日:2006-10-10

    申请号:US10603514

    申请日:2003-06-24

    IPC分类号: G09G5/00

    CPC分类号: G06F3/0436

    摘要: A touch sensor having an acoustic substrate, an acoustic transducer, and an acoustically diffractive grating is provided. The grating is disposed between the transducer and the substrate, so that acoustic energy from the transducer is coupled to an acoustic wave propagating along the surface of the substrate. If used in a display device, the combination of the transducer and grating may provide a low profile that allows the assembly to be more easily placed between the acoustic substrate and a bezel placed in front of the substrate. No acoustic components need be mounted on the rear surface of the substrate, allowing the acoustic substrate to be formed on the front surface of the display device.

    摘要翻译: 提供具有声学基底,声学换能器和声学衍射光栅的触摸传感器。 光栅设置在换能器和衬底之间,使得来自换能器的声能耦合到沿衬底表面传播的声波。 如果在显示装置中使用,则换能器和光栅的组合可以提供低轮廓,其允许组件更容易地放置在声学基底和放置在基底前面的边框之间。 在基板的后表面上不需要安装声学部件,从而可以在显示装置的前表面上形成声学基板。

    METHOD AND APPARATUS FOR COMPRESSING A NATURAL GAS STREAM
    6.
    发明申请
    METHOD AND APPARATUS FOR COMPRESSING A NATURAL GAS STREAM 审中-公开
    压缩自然气流的方法和装置

    公开(公告)号:US20090199590A1

    公开(公告)日:2009-08-13

    申请号:US11575958

    申请日:2005-09-09

    IPC分类号: F25J1/02 F17C13/00

    摘要: A method and apparatus for compressing a natural gas stream is disclosed. The natural gas stream to be compressed is liquefied and then compressed by means of at least one cryogenic pump. Liquefaction of the natural gas stream to be compressed preferably takes place using the energy from a low-temperature process, specifically in the exchange of heat countercurrent to at least one medium to be heated, preferably countercurrent to a cryogenic medium.

    摘要翻译: 公开了一种用于压缩天然气流的方法和装置。 待压缩的天然气流被液化,然后通过至少一个低温泵压缩。 要压缩的天然气流的液化优选使用来自低温过程的能量,特别是与至少一种待加热的介质逆流交换热,优选与低温介质逆流进行。

    Acoustic touch sensor
    8.
    发明申请
    Acoustic touch sensor 有权
    声学触摸传感器

    公开(公告)号:US20050243071A1

    公开(公告)日:2005-11-03

    申请号:US11106394

    申请日:2005-04-13

    IPC分类号: G09G5/00

    CPC分类号: G06F3/0436

    摘要: A touch sensor comprises a substrate capable of propagating acoustic waves and includes a first surface having a touch sensitive region. A first sidewall intersects the first surface along a first edge. The first edge is configured to propagate a first acoustic wave along the first edge. The first acoustic wave may be a one-dimensional edge wave. A wave converter converts the first acoustic wave to a second acoustic wave, and the first surface is configured to propagate the second acoustic wave across the touch sensitive region.

    摘要翻译: 触摸传感器包括能够传播声波的基板,并且包括具有触敏区域的第一表面。 第一侧壁沿着第一边缘与第一表面相交。 第一边缘被配置为沿着第一边缘传播第一声波。 第一声​​波可以是一维边缘波。 波变换器将第一声波转换为第二声波,并且第一表面被配置为传播第二声波穿过触敏区域。

    Adaptive frequency touchscreen controller using intermediate-frequency signal processing
    9.
    发明授权
    Adaptive frequency touchscreen controller using intermediate-frequency signal processing 失效
    自适应频率触摸屏控制器采用中频信号处理

    公开(公告)号:US06396484B1

    公开(公告)日:2002-05-28

    申请号:US09408818

    申请日:1999-09-29

    IPC分类号: G09G500

    CPC分类号: G06F3/0436

    摘要: A method and apparatus for adapting an acoustic touchscreen controller to the operating frequency requirements of a specific touchscreen are provided. The adaptive controller can either utilize look-up tables to achieve the desired output frequency or the it can use a multi-step process in which it first determines the frequency requirements of the touchscreen, and then adjusts the burst frequency characteristics, the receiver circuit center frequency, or both in accordance with the touchscreen requirements. In one embodiment, the adaptive controller compensates for global frequency mismatch errors. In this embodiment a digital multiplier is used to modify the output of a crystal reference oscillator. The reference oscillator output is used to control the frequency of the signal from the receiving transducers and/or to generate the desired frequency of the tone burst sent to the transmitting transducers. In another embodiment that is intended to compensate for both global and local frequency variations, the adaptive controller uses a digital signal processor. The digital signal processor, based on correction values contained in memory, defines a specific center frequency which preferably varies according to the signal delay, thus taking into account variations caused by localized variations in the acoustic wave reflective array. In yet another embodiment, a non-crystal local oscillator is used to provide the reference signal in the adaptive controller. The use of such an oscillator allows the controller to be miniaturized to a sufficient extent that it can be mounted directly to a touchscreen substrate. A feedback loop is used to compensate for oscillator drift. A discriminator circuit determines the degree of deviation from the desired frequency. The output from the discriminator is used to adjust the frequency of the local oscillator such that it tracks the frequency of the touchscreen.

    摘要翻译: 提供了一种用于使声学触摸屏控制器适应特定触摸屏的操作频率要求的方法和装置。 自适应控制器可以使用查找表来实现期望的输出频率,或者可以使用多步骤过程,其中它首先确定触摸屏的频率要求,然后调整突发频率特性,接收器电路中心 频率或两者均符合触屏要求。 在一个实施例中,自适应控制器补偿全局频率失配误差。 在本实施例中,使用数字乘法器来修改晶体参考振荡器的输出。 参考振荡器输出用于控制来自接收换能器的信号的频率和/或产生发送到发射换能器的音调脉冲串的期望频率。 在旨在补偿全局和局部频率变化的另一实施例中,自适应控制器使用数字信号处理器。 数字信号处理器基于存储器中包含的校正值来定义特定的中心频率,其优选地根据信号延迟而变化,因此考虑到由声波反射阵列中的局部变化引起的变化。 在又一个实施例中,使用非晶体本地振荡器来在自适应控制器中提供参考信号。 使用这种振荡器允许控制器被小型化到足以使其可以直接安装到触摸屏基板上。 反馈回路用于补偿振荡器漂移。 鉴频器电路确定与期望频率的偏差程度。 来自鉴别器的输出用于调整本地振荡器的频率,以便跟踪触摸屏的频率。

    Sparkle-free color display
    10.
    发明授权
    Sparkle-free color display 失效
    无闪烁彩色显示

    公开(公告)号:US5039907A

    公开(公告)日:1991-08-13

    申请号:US298540

    申请日:1989-01-17

    申请人: Robert Adler

    发明人: Robert Adler

    IPC分类号: H01J29/89

    CPC分类号: H01J29/896

    摘要: A color display is disclosed that has on an inner display surface a periodic pattern of luminescent deposits having a smallest deposit-to-adjacent-deposit pitch "P-D". The display has on an outer surface glare reduction means in the form of an undulating periodic pattern of light-scattering elements whose smallest element-to-adjacent-element pitch "P-E" is significantly less than the pitch "P-D" to avoid moire effects, but significantly greater than the longest wavelength of visible light to minimize diffraction effects. The color display according to the invention may comprise a color cathode ray tube havbing a touch panel on its front surface.

    摘要翻译: 公开了一种彩色显示器,其在内部显示表面上具有具有最小沉积物到相邻沉积间距“P-D”的发光沉积物的周期性图案。 该显示器具有外表面的眩光减少装置,其形式为光散射元件的波形周期性图案的形式,其最小元件相邻元件间距“PE”明显小于间距“PD”以避免波纹效应, 但明显大于可见光的最长波长以最小化衍射效应。 根据本发明的彩色显示器可以包括在其前表面上覆盖触摸面板的彩色阴极射线管。