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公开(公告)号：US06762753B2
公开(公告)日：2004-07-13
申请号：US09842227
申请日：2001-04-26
申请人： Yoshio Satoh , Fumihiko Nakazawa , Satoshi Sano
发明人： Yoshio Satoh , Fumihiko Nakazawa , Satoshi Sano
IPC分类号： G09G500
CPC分类号： G06F3/0436
摘要： A touch panel device includes a plurality of input IDTs for exciting surface acoustic waves and a plurality of output IDTs for receiving the surface acoustic waves, corresponding to a plurality of tracks on a non-piezoelectric substrate, and each input IDT has a wideband electrode structure and each output IDT has a matched filter structure for outputting a large output upon receipt of a specific binary signal sequence. A signal obtained by arranging a plurality of specific signal sequences in time series is applied to each input IDT.
摘要翻译： 触摸面板装置包括用于激发表面声波的多个输入IDT和用于接收表面声波的多个输出IDT，对应于非压电基板上的多个轨道，并且每个输入IDT具有宽带电极结构 并且每个输出IDT具有用于在接收到特定二进制信号序列时输出大输出的匹配滤波器结构。 通过将多个特定信号序列以时间序列排列而获得的信号被应用于每个输入IDT。
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公开(公告)号：US07705836B2
公开(公告)日：2010-04-27
申请号：US11401280
申请日：2006-04-11
申请人： Fumihiko Nakazawa , Satoshi Sano , Yoshio Satoh , Takashi Matsuda
发明人： Fumihiko Nakazawa , Satoshi Sano , Yoshio Satoh , Takashi Matsuda
CPC分类号： G06F3/0436
摘要： A plurality of excitation elements are disposed on two facing sides of a quadrilateral detection range in a non-piezoelectric substrate, and a plurality of receiving elements are disposed on the other two sides of the detection range so as to face the excitation elements respectively. Surface acoustic waves are transmitted from the respective plurality of excitation elements in two diagonal directions of the detection range respectively, and the surface acoustic waves from the two diagonal directions are received by the respective receiving elements, so that a position of an object in contact with the substrate is detected based on received results in the receiving elements.
摘要翻译： 多个激励元件设置在非压电基板中的四边形检测范围的两个相对侧上，并且多个接收元件分别设置在检测范围的另外两侧，以分别面对激励元件。 表面声波分别从检测范围的两个对角线方向从相应的多个激励元件发射，并且来自两个对角线方向的表面声波由各个接收元件接收，使得物体与 基于接收元件中的接收结果来检测基板。
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公开(公告)号：US07324096B2
公开(公告)日：2008-01-29
申请号：US10277963
申请日：2002-10-23
申请人： Fumihiko Nakazawa , Satoshi Sano , Yoshio Satoh , Takashi Matsuda
发明人： Fumihiko Nakazawa , Satoshi Sano , Yoshio Satoh , Takashi Matsuda
CPC分类号： G06F3/0436
摘要： A plurality of excitation elements, each including an IDT and a piezoelectric film, for exciting, respectively, surface acoustic waves, each having a unique center frequency, are formed on one end of a non-piezoelectric substrate, a plurality of receiving elements, each including an IDT and a piezoelectric film, for receiving, respectively, surface acoustic waves, each having a unique center frequency, are formed on the other end of the non-piezoelectric substrate to face the excitation elements, respectively, the center frequencies of the IDTs of the facing excitation element and receiving element are equal, the center frequencies of the IDTs of the excitation elements next to each other are different, and surface acoustic waves are propagated across the non-piezoelectric substrate, between the facing excitation elements and receiving elements so as to detect the position of an object in contact with the non-piezoelectric substrate, based on received results in the receiving elements.
摘要翻译： 在非压电基板的一端形成有多个分别包括IDT和压电膜的激励元件，分别用于激励分别具有唯一中心频率的表面声波，多个接收元件 分别在非压电基片的另一端分别形成分别具有独特中心频率的声表面波的IDT和压电薄膜，以分别面对激励元件，IDT的中心频率 面对的激励元件和接收元件相等时，彼此相邻的激励元件的IDT的中心频率不同，并且表面声波在非压电基板之间，在相对的激励元件和接收元件之间传播，所以 以便基于接收元件中的接收结果检测与非压电基片接触的物体的位置。
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公开(公告)号：US20060181524A1
公开(公告)日：2006-08-17
申请号：US11401281
申请日：2006-04-11
申请人： Fumihiko Nakazawa , Satoshi Sano , Yoshio Satoh , Takashi Matsuda
发明人： Fumihiko Nakazawa , Satoshi Sano , Yoshio Satoh , Takashi Matsuda
IPC分类号： G09G5/00
摘要： Surface acoustic waves are transmitted from a respective plurality of excitation elements to a non-piezoelectric substrate, and the surface acoustic waves propagating in the non-piezoelectric substrate are received by a respective receiving elements, thus a position of an object in contact with the non-piezoelectric substrate is detected based on received results in the receiving elements. An indicated direction is detected based on a reception level of surface acoustic waves in the receiving elements. A direction of a vector starting at the center of a range (contact range) in which a reception level is not higher than a predetermined level and ending at a position obtained based on the reception level is detected as a direction indicated by a user. The indicated direction can be detected even when the object stays at a position.
摘要翻译： 表面声波从相应的多个激励元件传递到非压电基片，并且在非压电基片中传播的表面声波由相应的接收元件接收，因此物体与非压电基片接触的位置 基于接收元件中的接收结果检测压电基板。 基于接收元件中的表面声波的接收电平来检测指示的方向。 作为用户指示的方向，检测在接收电平不高于预定电平并在基于接收电平获得的位置结束的范围（接触范围）的中心开始的矢量的方向。 即使对象停留在某个位置，也可以检测到指示的方向。
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公开(公告)号：US20060181523A1
公开(公告)日：2006-08-17
申请号：US11401280
申请日：2006-04-11
申请人： Fumihiko Nakazawa , Satoshi Sano , Yoshio Satoh , Takashi Matsuda
发明人： Fumihiko Nakazawa , Satoshi Sano , Yoshio Satoh , Takashi Matsuda
IPC分类号： G09G5/00
CPC分类号： G06F3/0436
摘要： A plurality of excitation elements are disposed on two facing sides of a quadrilateral detection range in a non-piezoelectric substrate, and a plurality of receiving elements are disposed on the other two sides of the detection range so as to face the excitation elements respectively. Surface acoustic waves are transmitted from the respective plurality of excitation elements in two diagonal directions of the detection range respectively, and the surface acoustic waves from the two diagonal directions are received by the respective receiving elements, so that a position of an object in contact with the substrate is detected based on received results in the receiving elements.
摘要翻译： 多个激励元件设置在非压电基板中的四边形检测范围的两个相对侧上，并且多个接收元件分别设置在检测范围的另外两侧，以分别面对激励元件。 表面声波分别从检测范围的两个对角线方向从相应的多个激励元件发射，并且来自两个对角线方向的表面声波由各个接收元件接收，使得物体与 基于接收元件中的接收结果来检测基板。
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公开(公告)号：US06756973B2
公开(公告)日：2004-06-29
申请号：US09866848
申请日：2001-05-30
申请人： Satoshi Sano , Fumihiko Nakazawa , Takashi Matsuda , Yoshio Satoh , Takashi Katsuki , Yuji Takahashi
发明人： Satoshi Sano , Fumihiko Nakazawa , Takashi Matsuda , Yoshio Satoh , Takashi Katsuki , Yuji Takahashi
IPC分类号： G09G500
CPC分类号： G06F3/0436
摘要： Surface acoustic waves are excited in two diagonal directions from each of IDTs (excitation elements) disposed on the upper side and the lower side of a non-piezoelectric substrate, and the surface acoustic waves propagated on a detection region are received by IDTs (receiving elements) disposed on the left side and right side of the non-piezoelectric substrate so that a position of an object touching the non-piezoelectric substrate is detected based on the reception results. In each IDT, comb-like electrode fingers are joined to two facing electrode bases (signal electrode and ground electrode) in such a manner that the comb-like electrode fingers are inclined from a facing direction of the electrode bases.
摘要翻译： 表面声波从设置在非压电基板的上侧和下侧的每个IDT（激励元件）沿两个对角线方向激发，并且在检测区域上传播的声表面波被IDT（接收元件）接收 ）配置在非压电基板的左侧和右侧，使得基于接收结果来检测接触非压电基板的物体的位置。 在每个IDT中，梳状电极指以这样的方式连接到两个相对的电极基座（信号电极和接地电极），使得梳状电极指从电极基座的相对方向倾斜。
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公开(公告)号：US07932900B2
公开(公告)日：2011-04-26
申请号：US11604693
申请日：2006-11-28
IPC分类号： G09G5/00
CPC分类号： G06F3/0436
摘要： Surface acoustic waves are propagated in a lower-left oblique direction and a lower-right oblique direction from an excitation element located on the upper side of a non-piezoelectric substrate and then received by receiving elements located on the left side and the right side, while surface acoustic waves are propagated in an upper-left oblique direction and an upper-right oblique direction from an excitation element located on the lower side of the non-piezoelectric substrate and then received by the receiving elements located on the left side and the right side. Based on the received results at the two receiving elements, a position of an object in contact with the non-piezoelectric substrate is detected. The sensitivity in a region near the diagonal, which is influenced largely by propagation loss of the surface acoustic waves, is improved by increasing the widths of the electrode fingers of the excitation elements and/or the receiving elements, the number of pairs of the electrode fingers, or the aperture width of comb-like electrodes, according to an increase in the propagation distances of the surface acoustic waves, i.e., toward the region near the diagonal.
摘要翻译： 表面声波从位于非压电基板的上侧的激励元件沿左下斜方向和右下斜方向传播，然后由位于左侧和右侧的接收元件接收， 同时表面声波从位于非压电基板的下侧的激励元件沿左上方倾斜方向和右上斜方向传播，然后由位于左侧和右侧的接收元件接收 侧。 基于两个接收元件的接收结果，检测与非压电基板接触的物体的位置。 通过增加激发元件和/或接收元件的电极指的宽度，电极对的数量来改善受到表面声波的传播损耗很大影响的对角线附近区域的灵敏度 手指或梳状电极的孔径宽度，根据表面声波的传播距离的增加，即朝向对角线附近的区域的增加。
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公开(公告)号：US07667694B2
公开(公告)日：2010-02-23
申请号：US10696037
申请日：2003-10-30
IPC分类号： G09G5/00
CPC分类号： G06F3/0436
摘要： A burst wave is applied to an excitation element of a touch panel main body from an oscillation section so as to excite surface acoustic waves, and the excited surface acoustic waves are received by a receiving element of the touch panel main body. The received signals are A/D converted by a receiving section, and a control section calculates the contact position and the contact width of the object in contact with the touch panel main body, based on time-series changes in the received strength. Based on the received strength of surface acoustic waves, the control section controls the wave number of the burst wave to be applied to the excitation element.
摘要翻译： 突发波从振荡部分施加到触摸面板主体的激励元件，以激发表面声波，并且激发的表面声波由触摸面板主体的接收元件接收。 所接收的信号由接收部分进行A / D转换，控制部分根据接收强度的时间序列变化来计算与触摸面板主体接触的物体的接触位置和接触宽度。 基于接收的表面声波的强度，控制部分控制施加到激励元件的脉冲波的波数。
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公开(公告)号：US20070091079A1
公开(公告)日：2007-04-26
申请号：US11604693
申请日：2006-11-28
IPC分类号： G09G5/00
CPC分类号： G06F3/0436
摘要： Surface acoustic waves are propagated in a lower-left oblique direction and a lower-right oblique direction from an excitation element located on the upper side of a non-piezoelectric substrate and then received by receiving elements located on the left side and the right side, while surface acoustic waves are propagated in an upper-left oblique direction and an upper-right oblique direction from an excitation element located on the lower side of the non-piezoelectric substrate and then received by the receiving elements located on the left side and the right side. Based on the received results at the two receiving elements, a position of an object in contact with the non-piezoelectric substrate is detected. The sensitivity in a region near the diagonal, which is influenced largely by propagation loss of the surface acoustic waves, is improved by increasing the widths of the electrode fingers of the excitation elements and/or the receiving elements, the number of pairs of the electrode fingers, or the aperture width of comb-like electrodes, according to an increase in the propagation distances of the surface acoustic waves, i.e., toward the region near the diagonal.
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公开(公告)号：US07176903B2
公开(公告)日：2007-02-13
申请号：US10781791
申请日：2004-02-20
IPC分类号： G09G5/00
CPC分类号： H03H3/08 , G06F3/0436 , H01L41/047 , H01L41/0477
摘要： A piezoelectric element includes a substrate, a lower electrode on the substrate, a piezoelectric layer on the lower electrode, and an upper electrode on the piezoelectric layer. The upper electrode includes a common base and a plurality of parallel branches extending from the base. The branches are arranged at a regular interval or pitch λ1. The lower electrode faces the branches of the upper electrode via the piezoelectric layer. The thickness h of the piezoelectric layer and the branch pitch λ1 are determined to satisfy an inequality 0.005≦h/λ1≦0.1. The lower electrode has a hillock occurrence rate which is no greater than 0.1%.
摘要翻译： 压电元件包括衬底，衬底上的下电极，下电极上的压电层和压电层上的上电极。 上电极包括公共基座和从基座延伸的多个平行分支。 分支以规则间隔或间距λ1排列。 下电极经由压电层面对上电极的分支。 压电层的厚度h和分支间距λ1确定为满足不等式0.005 <= H /λ1 <= 0.1。 下电极具有不大于0.1％的小丘发生率。
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