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1. 发明申请

US20050243071A1 Acoustic touch sensor 有权
标题翻译：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
申请人： Joel Kent , Paulo Gomes , Robert Adler
发明人： Joel Kent , Paulo Gomes , Robert Adler
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。

2. 发明申请

US20050248547A1 Acoustic touch sensor 有权
标题翻译：声学触摸传感器
公开(公告)号：US20050248547A1
公开(公告)日：2005-11-10
申请号：US11106166
申请日：2005-04-13
申请人： Joel Kent , Paulo Gomes
发明人： Joel Kent , Paulo Gomes
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. The substrate includes a first surface having a touch sensitive region and a first sidewall intersecting the first surface at a first edge. A transmitter is provided on the first sidewall of the substrate. The transmitter generates acoustic waves that propagate directly from the first sidewall through at least a portion of the touch sensitive region.
摘要翻译：触摸传感器包括能够传播声波的基板。衬底包括具有触敏区域的第一表面和在第一边缘处与第一表面相交的第一侧壁。在基板的第一侧壁上设置发射器。发射器产生通过至少一部分触敏区域直接从第一侧壁传播的声波。

3. 发明授权

US07006081B2 Acoustic touch sensor with laminated substrate 有权
公开(公告)号：US07006081B2
公开(公告)日：2006-02-28
申请号：US09972788
申请日：2001-10-05
申请人： Joel Kent , Robert Adler , Paul M. Adriani
发明人： Joel Kent , Robert Adler , Paul M. Adriani
IPC分类号： G09G5/00
CPC分类号： G06F3/043
摘要： The present invention is directed to a multilayer substrate for use in touchscreen and touch sensor applications. The substrate, including a microsheet, a polymer sheet, and a plate supports the propagation of acoustic waves, including Love waves and Rayleigh-like waves. The microsheet and plate may be fabricated from glass, metal, or other suitable materials depending on the desired application for the touchscreen. The polymer sheet may be fabricated from polystyrene, polyacrylates, polyether sulfones, or polycyclic olefins. The disclosed touchscreen substrates are thin but durable and have increased touch sensitivity with decreased sensitivity to water and other surface contaminants.

4. 发明授权

US06630929B1 Adaptive frequency touchscreen controller 有权
标题翻译：自适应频率触摸屏控制器
公开(公告)号：US06630929B1
公开(公告)日：2003-10-07
申请号：US09408594
申请日：1999-09-29
申请人： Robert Adler , Joel Kent , Jeffrey L. Sharp , Geoffrey D. Wilson
发明人： Robert Adler , Joel Kent , Jeffrey L. Sharp , Geoffrey D. Wilson
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。

5. 发明申请

US20070268276A1 Acoustic Touch Sensor with Low Profile Diffractive Grating Transducer Assembly 审中-公开
$Acoustic Touch Sensor with Low Profile Diffractive Grating Transducer Assembly$
标题翻译：具有薄型衍射光栅传感器组件的声学触摸传感器
公开(公告)号：US20070268276A1
公开(公告)日：2007-11-22
申请号：US10561873
申请日：2004-05-26
申请人： Joel Kent , Robert Adler , Charles Copper , Masahiro Tsumura
发明人： Joel Kent , Robert Adler , Charles Copper , Masahiro Tsumura
IPC分类号： G06F3/042 , G06F3/041
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。

6. 发明授权

US6091406A Grating transducer for acoustic touchscreens 失效
标题翻译：用于声学触摸屏的光栅传感器
公开(公告)号：US6091406A
公开(公告)日：2000-07-18
申请号：US998051
申请日：1997-12-24
申请人： Shigeki Kambara , Hiroshi Kaneda , Robert Adler , Joel Kent , Bruce W. Maxfield , Masao Takeuchi
发明人： Shigeki Kambara , Hiroshi Kaneda , Robert Adler , Joel Kent , Bruce W. Maxfield , Masao Takeuchi
IPC分类号： G06F3/043 , G06F3/03 , G06F3/033 , G06F3/041 , G09G5/00 , G06K11/14 , G08C21/00
CPC分类号： G06F3/0436
摘要： An acoustic touch sensing device, comprising a substrate, having a surface; and an acoustic wave transducer, transducing a bulk wave in said substrate propagating through said substrate along an axis intersecting said surface, wherein energy of said bulk wave is coupled to a wave having a converted wave mode with appreciable energy at said surface and propagating along said surface. The device may include a set of scattering centers to couple the bulk wave to a Rayleigh wave or plate wave. The Rayleigh wave or plate wave may be dispersed over a region of the substrate, and analyzed to detect a perturbation indicative of a position of touch.
摘要翻译：声学触摸感测装置，包括具有表面的基底; 以及声波换能器，沿着与所述表面相交的轴传播在所述衬底中传播的体波，其中所述体波的能量被耦合到具有在所述表面处具有可观能量的转换波模的波，并且沿着所述表面。该装置可以包括一组散射中心，以将体波耦合到瑞利波或平板波。瑞利波或平板波可以分散在基板的一个区域上，并分析以检测指示触摸位置的扰动。

7. 发明申请

US20070024599A1 Acoustic touch sensor with low-profile diffractive grating transducer assembly 有权
$Acoustic touch sensor with low-profile diffractive grating transducer assembly$
标题翻译：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：US20070024599A1
公开(公告)日：2007-02-01
申请号：US11544188
申请日：2006-10-06
申请人： Joel Kent , Robert Adler , Charles Copper
发明人： Joel Kent , Robert Adler , Charles Copper
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。

8. 发明申请

US20050248548A1 Acoustic touch sensor 审中-公开
标题翻译：声学触摸传感器
公开(公告)号：US20050248548A1
公开(公告)日：2005-11-10
申请号：US11106167
申请日：2005-04-13
申请人： Masahiro Tsumura , Joel Kent
发明人： Masahiro Tsumura , Joel Kent
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. The substrate includes a first surface having a touch sensitive region. A transducer is formed on the substrate. The transducer comprises a piezoelectric element which is thermally cured after being formed on the substrate. The transducer is configured for at least one of generating acoustic waves and detecting acoustic waves. Alternatively, the transducer may include a strip comprising the piezoelectric element.
摘要翻译：触摸传感器包括能够传播声波的基板。衬底包括具有触敏区域的第一表面。在基板上形成换能器。换能器包括压电元件，其在形成在基板上之后被热固化。传感器被配置用于产生声波和检测声波中的至少一个。或者，换能器可以包括包括压电元件的条带。

9. 发明授权

US06636201B1 Acoustic touchscreen having waveguided reflector arrays 有权
标题翻译：具有波导反射器阵列的声学触摸屏
公开(公告)号：US06636201B1
公开(公告)日：2003-10-21
申请号：US09579584
申请日：2000-05-26
申请人： Paulo Irulegui Gomes , Joel Kent , James L. Aroyan , Shigeki Kambara
发明人： Paulo Irulegui Gomes , Joel Kent , James L. Aroyan , Shigeki Kambara
IPC分类号： G09G500
CPC分类号： G06F3/0436
摘要： An acoustic touchscreen (1a) has transmitting transducers (23a, 23b) for generating acoustic signals which are deflected across a touch-sensitive area (2) by an array 13 of partially acoustically reflective elements 14. A touch on the touch-sensitive area causes a perturbation in the acoustic signals. After traversing the touch-sensitive area, the acoustic signals are redirected by another array 13 of partially acoustically reflective elements 14, towards receiving transducers (26a, 26b), where the signals (and any perturbations) are sensed. To accommodate touchscreens having narrow border regions (15a), the acoustic signals are propagated across the border regions using acoustic waveguides (18). The waveguide confines the acoustic signals to traveling along a narrow path width, but yet permit them to be deflected across the touch-sensitive area. In this manner, the transducers and reflective elements can in turn be of narrower construction and can fit within narrow border regions.
摘要翻译：声学触摸屏（1a）具有用于产生通过部分声学反射元件14的阵列13在触敏区域（2）上偏转的声学信号的发射换能器（23a，23b）。触敏区域上的触摸导致声信号的扰动。在穿过触摸敏感区域之后，声信号由另一个部分声学反射元件阵列13重定向到接收换能器（26a，26b），其中感测到信号（和任何扰动）。为了适应具有窄边界区域（15a）的触摸屏，声信号通过声波导（18）在边界区域传播。波导将声信号限制在沿着窄路径宽度行进，但是允许它们在触敏区域上偏转。以这种方式，换能器和反射元件又可以具有更窄的结构并且可以适合于狭窄的边界区域。

10. 发明授权

US6163313A Touch sensitive screen and method 失效
标题翻译：触摸屏和方法
公开(公告)号：US6163313A
公开(公告)日：2000-12-19
申请号：US989928
申请日：1997-12-12
申请人： James L. Aroyan , Paulo Irulegui Gomes , Joel Kent
发明人： James L. Aroyan , Paulo Irulegui Gomes , Joel Kent
IPC分类号： G06F3/033 , G06F3/045 , G09G5/00
CPC分类号： G06F3/045 , G06F2203/04113
摘要： A position touch sensor having a substrate and a resistive layer disposed on the substrate. At least one pair of electrodes is positioned on the resistive layer. A portion of one electrode is spaced from a portion of another electrode to produce an overlapped resistive region between the spaced portions of the electrodes. An insulating region extends into and terminates in the overlapped resistive region from a resistive region of the resistive layer outside the overlapped resistive region. A method for controlling the flow of current through a resistive layer for converting physical position information on the resistive layer into electrical signals. The method includes determining a dimension of a length of a generally continuous resistive section which is to be located in the resistive layer. The dimension of the length is determined through the use of electrical excitation in the resistive layer. A first insulating region is disposed in the resistive layer to form a first boundary of the generally continuous resistive section. Subsequently and at a distance from the first insulating region essentially equaling the dimension of the length, a second insulating region is disposed in the resistive layer to form a second boundary of the generally continuous resistive section such that current may be conducted through the generally continuous resistive section between the first and second insulating regions.
摘要翻译：一种位置触摸传感器，其具有设置在基板上的基板和电阻层。至少一对电极位于电阻层上。一个电极的一部分与另一个电极的一部分隔开，以在电极间隔开的部分之间产生重叠的电阻区域。绝缘区域从重叠电阻区域外侧的电阻层的电阻区域延伸到并且终止于重叠电阻区域。一种用于控制通过电阻层的电流流动的方法，用于将电阻层上的物理位置信息转换为电信号。该方法包括确定要位于电阻层中的大致连续的电阻部分的长度尺寸。通过在电阻层中使用电激励来确定长度的尺寸。第一绝缘区域设置在电阻层中以形成大致连续的电阻部分的第一边界。随后并且距离第一绝缘区域的距离基本上等于长度的尺寸，在电阻层中设置第二绝缘区域以形成大致连续的电阻部分的第二边界，使得电流可以通过大体上连续的电阻在第一和第二绝缘区域之间。

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