Self-referencing capacitive key cell structure and switchcore matrices formed therefrom
    1.
    发明公开
    Self-referencing capacitive key cell structure and switchcore matrices formed therefrom 失效
    Auf sich selbst beziehende kapazitive Tastaturzelle und daraus gebildete Tastaturmatrix。

    公开(公告)号:EP0383997A2

    公开(公告)日:1990-08-29

    申请号:EP89115984.0

    申请日:1989-08-30

    申请人: W. H. BRADY CO.

    IPC分类号: H01H13/70

    摘要: In a matrix of capacitive key cells (A1,A2,B1,B2) of the type including a contact switch (20) in series with a key cell capacitor (21), an intracell coactive loading capacitor (22) is connected between ground and the junction (23) of the contact switch (20) with the key cell capacitor (21). A matrix of key cells (A1,A2,B1,B2) so formed is self-referencing, in that the need for a separate reference capacitor to load a sense line (50) is eliminated. Instead, loading is provided intrinsically by the effect of the intracell coactive loading capacitors (22) acting through multiple key cells (A1,A2,B1,B2) connected to a sense line (50).

    摘要翻译: 在包括与密钥单元电容器(21)串联的接触开关(20)的类型的电容式键控单元(A1,A2,B1,B2)的矩阵中,电池共同作用的负载电容器(22)连接在地和 接触开关(20)的接点(23)与键电池电容器(21)连接。 这样形成的关键单元(A1,A2,B1,B2)的矩阵是自参照的,因为消除了需要单独的参考电容器来加载感测线(50)。 相反,通过连接到感测线(50)的多个键控单元(A1,A2,B1,B2)作用的单元间辅助加载电容器(22)的作用本质上提供负载。

    Self-referencing capacitive key cell structure and switchcore matrices formed therefrom
    2.
    发明公开
    Self-referencing capacitive key cell structure and switchcore matrices formed therefrom 失效
    自适应关键单元结构和开关矩阵的自适应

    公开(公告)号:EP0383997A3

    公开(公告)日:1991-11-06

    申请号:EP89115984.0

    申请日:1989-08-30

    申请人: W. H. BRADY CO.

    IPC分类号: H01H13/70

    摘要: In a matrix of capacitive key cells (A1,A2,B1,B2) of the type including a contact switch (20) in series with a key cell capacitor (21), an intracell coactive loading capacitor (22) is connected between ground and the junction (23) of the contact switch (20) with the key cell capacitor (21). A matrix of key cells (A1,A2,B1,B2) so formed is self-referencing, in that the need for a separate reference capacitor to load a sense line (50) is eliminated. Instead, loading is provided intrinsically by the effect of the intracell coactive loading capacitors (22) acting through multiple key cells (A1,A2,B1,B2) connected to a sense line (50).

    摘要翻译: 在包括与密钥单元电容器(21)串联的接触开关(20)的类型的电容式键控单元(A1,A2,B1,B2)的矩阵中,电池共同作用的负载电容器(22)连接在地和 接触开关(20)的接点(23)与键电池电容器(21)连接。 这样形成的关键单元(A1,A2,B1,B2)的矩阵是自参照的,因为消除了需要单独的参考电容器来加载感测线(50)。 相反,通过连接到感测线(50)的多个键控单元(A1,A2,B1,B2)作用的单元间辅助加载电容器(22)的作用本质上提供负载。

    Tamper-resistant changeable sign
    3.
    发明公开
    Tamper-resistant changeable sign 失效
    Auswechselbares wetterfestes Schild。

    公开(公告)号:EP0236707A2

    公开(公告)日:1987-09-16

    申请号:EP87100913.0

    申请日:1987-01-23

    申请人: W. H. BRADY CO.

    IPC分类号: G09F7/10

    CPC分类号: G09F7/10

    摘要: A tamper-resistant sign comprising a holder (l0) having a front wall (ll) spaced from a rear wall (l2) to define a sign chamber (l7) between the walls, and a sign panel (30) inserted in the sign chamber (l7). The sign panel (30) includes a retaining element (32) extending therefrom and a wall (l2) of the holder includes a recess (l8). The retaining element (32) and the recess (l8) are positioned in their respective elements so as to be aligned with one another when the sign panel (30) is fully inserted in the sign chamber (l7); the retaining element (32) is then received in the recess (l8) to restrict unauthorized removal of the sign panel (30) from the holder (l0).

    摘要翻译: 一种防篡改标志,其包括具有与后壁(12)间隔开的前壁(11)的保持器(10),以在所述壁之间限定标志室(17),以及插入所述标志室 (17)。 标志面板(30)包括从其延伸的保持元件(32),并且保持器的壁(12)包括凹部(18)。 当符号面板(30)完全插入标志室(17)中时,保持元件(32)和凹部(18)被定位在它们各自的元件中以便彼此对准。 保持元件(32)然后被容纳在凹槽(18)中,以限制标志面板(30)从保持器(10)的非法移除。

    Tamper-resistant changeable sign
    6.
    发明公开
    Tamper-resistant changeable sign 失效
    防篡改可变标志

    公开(公告)号:EP0236707A3

    公开(公告)日:1988-01-13

    申请号:EP87100913

    申请日:1987-01-23

    申请人: W. H. BRADY CO.

    IPC分类号: G09F07/10

    CPC分类号: G09F7/10

    摘要: A tamper-resistant sign comprising a holder (l0) having a front wall (ll) spaced from a rear wall (l2) to define a sign chamber (l7) between the walls, and a sign panel (30) inserted in the sign chamber (l7). The sign panel (30) includes a retaining element (32) extending therefrom and a wall (l2) of the holder includes a recess (l8). The retaining element (32) and the recess (l8) are positioned in their respective elements so as to be aligned with one another when the sign panel (30) is fully inserted in the sign chamber (l7); the retaining element (32) is then received in the recess (l8) to restrict unauthorized removal of the sign panel (30) from the holder (l0).

    摘要翻译: 一种防篡改标志,其包括具有与后壁(12)间隔开的前壁(11)的保持器(10),以在所述壁之间限定标志室(17),以及插入所述标志室 (17)。 标志面板(30)包括从其延伸的保持元件(32),并且保持器的壁(12)包括凹部(18)。 当符号面板(30)完全插入标志室(17)中时,保持元件(32)和凹部(18)被定位在它们各自的元件中以便彼此对准。 保持元件(32)然后被容纳在凹槽(18)中,以限制标志面板(30)从保持器(10)的非法移除。