Waterproof structure of printed circuit board
    1.
    发明授权
    Waterproof structure of printed circuit board 失效
    印刷电路板防水结构

    公开(公告)号:US06924447B2

    公开(公告)日:2005-08-02

    申请号:US10370614

    申请日:2003-02-24

    IPC分类号: H05K1/02 H01H31/702

    摘要: A waterproof structure is used with a printed circuit board, which is primarily composed of an upper layer membrane, a lower layer membrane, and an insulation layer, which are conjoined to one another. Besides, at least one first channel and second channel are provided on the upper layer membrane and the lower layer membrane respectively and correspondingly. Also, a pressure-adjusting hole, whose periphery is larger than that of the first channel and the second channel, is provided on the insulation layer corresponding to the positions of the first channel and the second channel. After the first channel, the second channel, and the pressure-adjusting hole of the insulation layer have been conjoined, a waterproof unit will be formed at a place where the contact points of the three are not connected to one another. The waterproof unit contains circulated air and prevents moisture from permeating into the circuit board thereby avoiding a short circuit of the circuit board.

    摘要翻译: 防水结构与印刷电路板一起使用,印刷电路板主要由彼此结合的上层膜,下层膜和绝缘层组成。 此外,分别和相应地在上层膜和下层膜上设置至少一个第一通道和第二通道。 此外,在与第一通道和第二通道的位置对应的绝缘层上设置有周边比第一通道和第二通道的周边大的压力调节孔。 在第一通道,第二通道和绝缘层的压力调节孔结合之后,将在三个接触点彼此不连接的地方形成防水单元。 防水单元包含循环空气,防止水分渗入电路板,从而避免电路板短路。

    Keyboard without ghost keys
    2.
    发明申请
    Keyboard without ghost keys 有权
    键盘没有鬼键

    公开(公告)号:US20070247339A1

    公开(公告)日:2007-10-25

    申请号:US11396657

    申请日:2006-04-04

    申请人: Tien-Min Lu

    发明人: Tien-Min Lu

    IPC分类号: H03M11/00 H03K17/94

    CPC分类号: H03M11/003

    摘要: A keyboard without ghost keys has a circuit which includes a microprocessor in which a plurality of I/O lines form a keyboard scanning matrix. Two of the I/O lines on the matrix cross to define a plurality of signal switches. The microprocessor is electrically connected to a primary level resistance and a reference potential to determine the ON condition of the signal switches. Each signal switch further is electrically connected to at least one secondary level switch which is electrically connected to the primary level switch in a serial manner. When a user depresses any three signal switches on the rectangular angles of the keyboard scanning matrix, the connecting primary level resistance and the secondary level resistance form a new level resistance. The new level resistance and the current flowing to the keyboard scanning matrix are processed to get a potential smaller than the reference potential, thereby to eliminate the phenomenon of ghost keys.

    摘要翻译: 没有鬼键的键盘具有包括微处理器的电路,其中多个I / O线形成键盘扫描矩阵。 矩阵上的两条I / O线交叉以限定多个信号开关。 微处理器电连接到初级电平和参考电位以确定信号开关的接通状态。 每个信号开关进一步电连接到至少一个次级电平开关,其以串联方式电连接到主电平开关。 当用户按下键盘扫描矩阵的矩形角度上的任何三个信号开关时,连接初级电阻和次级电阻形成新的电平电阻。 处理新的电平电阻和流向键盘扫描矩阵的电流以获得比参考电位小的电位,从而消除鬼键的现象。

    Keyboard without ghost keys
    3.
    发明授权
    Keyboard without ghost keys 有权
    键盘没有鬼键

    公开(公告)号:US07375655B2

    公开(公告)日:2008-05-20

    申请号:US11396657

    申请日:2006-04-04

    申请人: Tien-Min Lu

    发明人: Tien-Min Lu

    IPC分类号: H03K19/00

    CPC分类号: H03M11/003

    摘要: A keyboard without ghost keys has a circuit which includes a microprocessor in which a plurality of I/O lines form a keyboard scanning matrix. Two of the I/O lines on the matrix cross to define a plurality of signal switches. The microprocessor is electrically connected to a primary level resistance and a reference potential to determine the ON condition of the signal switches. Each signal switch further is electrically connected to at least one secondary level switch which is electrically connected to the primary level switch in a serial manner. When a user depresses any three signal switches on the rectangular angles of the keyboard scanning matrix, the connecting primary level resistance and the secondary level resistance form a new level resistance. The new level resistance and the current flowing to the keyboard scanning matrix are processed to get a potential smaller than the reference potential, thereby to eliminate the phenomenon of ghost keys.

    摘要翻译: 没有鬼键的键盘具有包括微处理器的电路,其中多个I / O线形成键盘扫描矩阵。 矩阵上的两条I / O线交叉以限定多个信号开关。 微处理器电连接到初级电平和参考电位以确定信号开关的接通状态。 每个信号开关进一步电连接到至少一个次级电平开关,其以串联方式电连接到主电平开关。 当用户按下键盘扫描矩阵的矩形角度上的任何三个信号开关时,连接初级电阻和次级电阻形成新的电平电阻。 处理新的电平电阻和流向键盘扫描矩阵的电流以获得比参考电位小的电位,从而消除鬼键的现象。

    Pushbutton mechanism for keyboards
    4.
    发明申请
    Pushbutton mechanism for keyboards 有权
    键盘按键机构

    公开(公告)号:US20070119696A1

    公开(公告)日:2007-05-31

    申请号:US11288259

    申请日:2005-11-29

    申请人: Tien-Min Lu

    发明人: Tien-Min Lu

    IPC分类号: H01H9/00

    CPC分类号: H01H3/125

    摘要: A pushbutton mechanism for keyboards includes a bridge in a pushbutton that has an inner frame and an outer frame to make the pushbutton movable up and down. The inner frame and outer frame are intersected and coupled together, and have respectively inner side brackets and outer side brackets that have a stub shaft and a pivot portion to form a relative turning relationship. The inner and outer side brackets have respectively harness bosses and harness recesses corresponding to each other to allow the pushbutton to form a lifting position and a lower position in normal conditions. The bridge thus formed can generate a steadier relative turning and confine the stroke distance for the pushbutton.

    摘要翻译: 用于键盘的按钮机构包括具有内框架和外框架的按钮中的桥梁,以使按钮能够上下移动。 内框架和外框架相交并联接在一起,并分别具有内侧支架和外侧支架,其具有短轴和枢轴部分以形成相对转动关系。 内侧和外侧支架具有彼此对应的线束凸台和线束凹槽,以允许按钮在正常状态下形成提升位置和较低位置。 由此形成的桥可以产生更稳定的相对转动并限制按钮的行程距离。

    Method for configuring button keys on a membrane
    5.
    发明授权
    Method for configuring button keys on a membrane 失效
    在膜上配置按键的方法

    公开(公告)号:US06992600B2

    公开(公告)日:2006-01-31

    申请号:US10207989

    申请日:2002-07-31

    申请人: Tien-Min Lu

    发明人: Tien-Min Lu

    IPC分类号: H03K17/94 H03M11/00

    摘要: A method for configuring button keys on a membrane includes the steps of: mapping the membrane under the conditions of without jumping and without generating ghost keys; gathering adjacent button keys on a same cluster; defining a button key configuration chart according to each cluster; and linking circuits of each button key in each cluster to a flat cable of the membrane. Then defining total number of various composite keys; locating the composite keys to be not co-linear or cross co-linear on the X-axis or the Y-axis of the matrix scanning lines; and mapping other adjacent button keys without the jumping.

    摘要翻译: 用于在膜上配置按钮键的方法包括以下步骤:在不跳跃的条件下映射膜并且不产生幻影键; 收集相同群集上的相邻按钮键; 根据每个集群定义一个按键配置图表; 并且将每个群集中的每个按钮键的电路连接到膜的扁平电缆。 然后定义各种复合键的总数; 将复合键定位在矩阵扫描线的X轴或Y轴上不是共线的或交叉共线的; 并映射其他相邻的按钮键而不跳。

    Keyboard key capable of lowering its overall height
    6.
    发明授权
    Keyboard key capable of lowering its overall height 失效
    键盘键可以降低其整体高度

    公开(公告)号:US06969815B1

    公开(公告)日:2005-11-29

    申请号:US10995260

    申请日:2004-11-24

    申请人: Tien-Min Lu

    发明人: Tien-Min Lu

    IPC分类号: H01H13/70 H01H13/705

    摘要: A keyboard key capable of lowering its overall height, which comprises a key cap body and a key cap base being coupled to the keyboard and disposed at the areas of four corners correspondingly having a displacing pillar and elevating groove, and an accommodating section of an electrically conductive cap body disposed at the corresponding central position of the key cap base and the key cap body, and a fixing section and a positioning section coupled to the key cap body and the key cap base respectively, and the displacing pillar and elevating groove are disposed separately at the four corners to reduce the moment of any point of the key cap body pressing the electrically conductive cap body in order to achieve the purposes of effectively lowering the overall height of the key and making the keyboard thin.

    摘要翻译: 一种能够降低其整体高度的键盘键,其包括键帽体和键帽基座,该键帽本体和键帽基座耦合到键盘并且设置在相应地具有移位柱和升降槽的四个角部的区域处,以及电气 设置在键帽基座和键帽体的对应中心位置处的导电盖体,以及分别与键帽主体和键帽基座连接的固定部和定位部,并且配置位移支柱和升降槽 分开地在四个角落处,以减小键帽主体按压导电盖体的任何点的力矩,以达到有效降低键的整体高度并使键盘变薄的目的。