Switch system
    2.
    发明授权
    Switch system 有权
    开关系统

    公开(公告)号:US06307304B1

    公开(公告)日:2001-10-23

    申请号:US09548845

    申请日:2000-04-13

    IPC分类号: H01L41113

    摘要: A piezoelectric active-mode incrementor switch system (100) includes two ratchet wheels (118, 124) that are rotationally mounted on a drive shaft (112) having a knob (102). The ratchet wheels (118, 128) form a slipping clutch with their respective drive wheels (116, 128) which are rigidly mounted to the drive shaft and mechanically loaded with spring (120). The ratchet wheels (118, 124) are mounted inversely to each other on the drive shaft (112) and make contact with their respective cantilever beams (114, 136) which each have a piezoelectric film. In operation, the switch (100) functions by mechanically stimulating the piezoelectric beams. When the knob (102) is rotated in one direction, only one of the beams (114, 136) is displaced causing a generation of an electrical charge that acts as a signal. The other beam (114 or 136) is prevented from moving and therefore its beam does not produce a signal. When the knob (102) is rotated in the opposite direction, the other beam that was previously prevented from moving is displaced causing an electrical signal to be generated by the switch.

    摘要翻译: 压电有源模式增量开关系统(100)包括两个棘轮​​(118,124),其旋转地安装在具有旋钮(102)的驱动轴(112)上。 棘轮(118,128)与其相应的驱动轮(116,128)形成滑动离合器,其刚性地安装到驱动轴并机械地装载弹簧(120)。 棘轮(118,124)在驱动轴(112)上彼此相反地安装,并与其各自具有压电膜的各自的悬臂梁(114,136)接触。 在操作中,开关(100)通过机械地激励压电波束来起作用。 当旋钮(102)沿一个方向旋转时,只有一个光束(114,136)被移位,导致产生充当信号的电荷。 防止另一个光束(114或136)移动,因此其光束不产生信号。 当旋钮(102)沿相反方向旋转时,先前防止移动的另一个光束发生位移,导致开关产生电信号。

    Piezoelectric switch
    3.
    发明授权
    Piezoelectric switch 失效
    压电开关

    公开(公告)号:US06104119A

    公开(公告)日:2000-08-15

    申请号:US335989

    申请日:1999-06-18

    CPC分类号: H03K17/9643 H04B1/48

    摘要: A piezoelectric switch (10) is made by laminating one piezoelectric film (16) on the top and a second piezoelectric film (18) on the bottom sides of a stiff central core (14). The central core has one or more actuation areas or poppels (12) formed therein. Each piezoelectric film has an electrically conductive portion (15, 17) formed directly over the actuating area. When the actuating area on the laminate is depressed (11), the piezoelectric films each generate an electric signal that is sent through the electrically conductive portions, thus creating a switching signal.

    摘要翻译: 压电开关(10)通过在顶部层叠一个压电膜(16)并在硬中心芯(14)的底侧上层叠第二压电膜(18)而制成。 中心芯具有形成在其中的一个或多个致动区域或孔穴(12)。 每个压电膜具有直接形成在致动区域上的导电部分(15,17)。 当层叠体上的致动区域被压下(11)时,压电膜产生通过导电部分发送的电信号,从而产生开关信号。

    Switching method using a frequency domain piezoelectric switch
    4.
    发明授权
    Switching method using a frequency domain piezoelectric switch 失效
    切换方法采用频域压电开关

    公开(公告)号:US06060817A

    公开(公告)日:2000-05-09

    申请号:US055426

    申请日:1998-04-06

    CPC分类号: H03K17/964 H03K17/965

    摘要: A frequency domain switch (100) utilizes an array of cantilevered beams (108) laminated with a piezoelectric material (126). Each of the beams has a unique geometry, and produces a sinusoidal electrical signal in the piezoelectric film that is assignable only to one of the cantilevered beams. When a free end of one of the cantilevered beams is deflected, it produces a signal that is analyzed by suitable circuitry (410-440) to read the position of the switch.

    摘要翻译: 频域开关(100)利用层叠有压电材料(126)的悬臂梁(108)的阵列。 每个光束具有独特的几何形状,并且在压电膜中产生仅可分配给悬臂梁中的一个的正弦电信号。 当悬臂梁中的一个的自由端偏转时,它产生一个由合适的电路(410-440)分析以读取开关位置的信号。

    Method of fabricating an elastomeric keypad
    5.
    发明授权
    Method of fabricating an elastomeric keypad 失效
    制造弹性键盘的方法

    公开(公告)号:US5681515A

    公开(公告)日:1997-10-28

    申请号:US631755

    申请日:1996-04-12

    摘要: A method of fabricating an elastomeric keypad having a hard key cap over the elastomeric key. A sheet (50) containing a key cap (24) with graphics (26) is placed onto a first plate (52) of a molding tool (54). A second plate (58) is then attached to the first plate, covering the graphic film. The first plate and the second plate interact in a manner such that the key cap containing the graphic is excised out of the film and retained in the molding tool assembly. The waste material (60) surrounding the key cap is displaced away from its original position. A third plate (64) is then attached to the assembled first and second plates. The assembled molding tool creates a cavity (66) that is representative of the keypad assembly, and an elastomeric material is molded into that cavity. Afar the elastomeric material (12) solidifies, the tool is opened, the molded keypad assembly (10) containing the integrally attached rigid key caps is removed.

    摘要翻译: 一种制造弹性体键盘的方法,该弹性键盘在弹性键上具有硬键帽。 包含具有图形(26)的键帽(24)的片材(50)被放置在模制工具(54)的第一板(52)上。 然后将第二板(58)附接到第一板,覆盖图形膜。 第一板和第二板以这样的方式相互作用,使得包含图形的钥匙盖被从膜中排出并保持在模制工具组件中。 围绕钥匙盖的废料(60)远离其原始位置。 然后将第三板(64)附接到组装的第一和第二板。 组装的模制工具产生代表键盘组件的空腔(66),并且将弹性体材料模制到该空腔中。 弹性体材料(12)固定时,打开工具,除去包含整体连接的刚性密封帽的模制键盘组件(10)。

    Ultrasonic welding of metallized plastic
    8.
    发明授权
    Ultrasonic welding of metallized plastic 失效
    金属化塑料超声波焊接

    公开(公告)号:US5397408A

    公开(公告)日:1995-03-14

    申请号:US247372

    申请日:1994-05-23

    IPC分类号: B29C65/00 B29C65/08 B32B31/16

    摘要: A method for ultrasonically welding two plastic parts together. One part (30) has a weld joint feature (23) that is covered with a metal layer (27), and the other plastic part (25) has a complimentary weld joint feature. The two parts are joined together by ultrasonically welding the two weld joint features to each other. A force (40) is applied to the first and second plastic parts prior to the step of welding. The force is substantially in excess of that required to cause the two weld joint features to contact each other. This method creates an ultrasonic welded metallized plastic assembly. Each part of the assembly has a weld joint feature, at least one of which was covered with a metal layer prior to welding. Portions of the each of the two weld joint features are deformed to form a plastic weld joint through the metal coating.

    摘要翻译: 一种将两个塑料部件超声波焊接在一起的方法。 一部分(30)具有被金属层(27)覆盖的焊接接头特征(23),另一部分(30)具有互补的焊接接头特征。 通过将两个焊接接头特征彼此超声波焊接而将两个部件连接在一起。 在焊接步骤之前,将力(40)施加到第一和第二塑料部件。 该力基本上超过使两个焊接接头特征彼此接触所需的力。 该方法创建超声波焊接金属化塑料组件。 组件的每个部分具有焊接接头特征,其中至少一个在焊接之前被金属层覆盖。 两个焊接接头特征中的每一个的部分变形以形成通过金属涂层的塑性焊接接头。

    Light guide for LCD
    9.
    发明授权
    Light guide for LCD 失效
    LCD导光板

    公开(公告)号:US4929062A

    公开(公告)日:1990-05-29

    申请号:US265977

    申请日:1988-11-02

    IPC分类号: G02F1/13357

    CPC分类号: G02F1/133615

    摘要: A display system includes a liquid crystal display, a light guide behind the display, and light emitting diodes. The light guide is a molded slab of clear material with a front display surface a rear surface and six bordering surfaces with two planes depressed into its rear surface and having two hollow half cylindrical extensions integrally molded with closed top and bottom ends. The rear surface and bordering surfaces and outer surface of the extensions are coated with reflective white paint. These extensions receive light from surface mounted LED's which are positioned directly below the extensions to redirect the light into the light guide.

    摘要翻译: 显示系统包括液晶显示器,显示器后面的导光体和发光二极管。 光导是透明材料的模制板,前显示表面是后表面和六个接合表面,两个平面压入其后表面,并具有两个中空半圆柱形延伸部,整体模制成封闭的顶端和底端。 延伸部的后表面和边界表面和外表面涂有反射性白色涂料。 这些扩展接收来自表面安装的LED的光,这些LED直接位于延伸部分下方,以将光重定向到光导中。