公开(公告)号：EP0359669A3

公开(公告)日：1991-08-28

申请号：EP89402524.6

申请日：1989-09-14

申请人： FUJITSU LIMITED

发明人： Endoh, Norio ,  Tanji, Shigeo ,  Hayashi, Kazutoshi ,  Yamada, Hideo

IPC分类号： H03M11/00

CPC分类号： H03M11/003

摘要： An input detecting apparatus, method in a switching matrix in which a plurality of switches are provided in the form of a matrix, which discriminates a sneak pass signal current caused by overlapping keying of up to 10 switches and is provided with a switching matrix including a driver circuit, a detecting circuit, a first group of a plurality of lines (1₀ - 1₆), each connected to the driver circuit (2), a second group of a plurality of lines (3₀ - 3₆), each connected to the detecting circuit, and a plurality of switching devices including a resistor (6) and a switching element (5) serially arranged, one end of each switching device being connected to one of the first group of lines and the other end to one of the second group of lines, the driver circuit having a decoder (11) which in turn connects one end of each one of the plurality of lines of the first group (1₀ - 1₆) to an electrical source having 0 voltage, one by one, the detecting circuit having a selector (7) selectively connecting in turn one end of the plurality of lines of the second group (3₀ - 3₆) to a voltage detecting circuit thereof, the rest of the end of the plurality lines of the second group being connected to a decoder in which the ends of the plurality lines of the second group are in turn opened in synchronization with the operation of the selector, and a means is provided for applying a predetermined voltage higher than the detecting voltage to detect the switching operation.

公开(公告)号：EP0359669B1

公开(公告)日：1996-03-27

申请号：EP89402524.6

申请日：1989-09-14

申请人： FUJITSU LIMITED

发明人： Endoh, Norio ,  Tanji, Shigeo ,  Hayashi, Kazutoshi ,  Yamada, Hideo

IPC分类号： H03M11/00

CPC分类号： H03M11/003

公开(公告)号：EP0358566A2

公开(公告)日：1990-03-14

申请号：EP89402418.1

申请日：1989-09-05

申请人： FUJITSU LIMITED

发明人： Tanji, Shigeo ,  Hayashi, Kazutoshi ,  Yamada, Hideo ,  Endoh, Norio

IPC分类号： H01H13/70

CPC分类号： H01H13/785 ,  H01H13/702 ,  H01H13/703 ,  H01H2201/03 ,  H01H2211/01 ,  H01H2211/03 ,  H01H2217/012 ,  H01H2229/03 ,  H01H2239/012

摘要： A sheet switch comprises a pair of flexible insulative films (13,14), one of which (13) is provided with a plurality of electrodes (16), resistances (17) connected to the electrodes, respectively, and line patterns (18) for externally connecting the electrodes via the resistances. The other insulative film (14) is also provided with a plurality of second electrodes (19) at positions corresponding to the first electrodes (16), respectively, and a space is defined between each of the facing electrodes (16,19). The line pattern is a laminated structure consisting of an underlayer formed of a low resistance paste and an upper layer formed of a high resistanoe paste coated over the underlayer. The underlayer formed of a low resistance paste is partially disconnected to define a gap, so that the resistance is formed integrally with the upper layer formed of a high resistance paste at a position corresponding to the gap.

摘要翻译： 片状开关包括一对柔性绝缘膜（13,14），其中一个柔性绝缘膜（13,14）分别具有多个电极（16），分别连接到电极的电阻（17）和线图案（18） 用于通过电阻外部连接电极。 另一个绝缘膜（14）分别在与第一电极（16）对应的位置处设置有多个第二电极（19），并且在每个相对电极（16,19）之间限定空间。 线图案是由低电阻膏形成的底层和涂覆在底层上的高电阻剂糊形成的上层构成的层叠结构。 由低电阻浆料形成的底层部分地断开以限定间隙，使得电阻与在与间隙对应的位置处由高电阻浆料形成的上层形成为一体。

公开(公告)号：EP0358566B1

公开(公告)日：1997-01-08

申请号：EP89402418.1

申请日：1989-09-05

申请人： FUJITSU LIMITED

发明人： Tanji, Shigeo ,  Hayashi, Kazutoshi ,  Yamada, Hideo ,  Endoh, Norio

IPC分类号： H01H13/70

CPC分类号： H01H13/785 ,  H01H13/702 ,  H01H13/703 ,  H01H2201/03 ,  H01H2211/01 ,  H01H2211/03 ,  H01H2217/012 ,  H01H2229/03 ,  H01H2239/012

公开(公告)号：EP0358566A3

公开(公告)日：1991-09-11

申请号：EP89402418.1

申请日：1989-09-05

申请人： FUJITSU LIMITED

发明人： Tanji, Shigeo ,  Hayashi, Kazutoshi ,  Yamada, Hideo ,  Endoh, Norio

IPC分类号： H01H13/70

CPC分类号： H01H13/785 ,  H01H13/702 ,  H01H13/703 ,  H01H2201/03 ,  H01H2211/01 ,  H01H2211/03 ,  H01H2217/012 ,  H01H2229/03 ,  H01H2239/012

摘要： A sheet switch comprises a pair of flexible insulative films (13,14), one of which (13) is provided with a plurality of electrodes (16), resistances (17) connected to the electrodes, respectively, and line patterns (18) for externally connecting the electrodes via the resistances. The other insulative film (14) is also provided with a plurality of second electrodes (19) at positions corresponding to the first electrodes (16), respectively, and a space is defined between each of the facing electrodes (16,19). The line pattern is a laminated structure consisting of an underlayer formed of a low resistance paste and an upper layer formed of a high resistanoe paste coated over the underlayer. The underlayer formed of a low resistance paste is partially disconnected to define a gap, so that the resistance is formed integrally with the upper layer formed of a high resistance paste at a position corresponding to the gap.

公开(公告)号：EP0359669A2

公开(公告)日：1990-03-21

申请号：EP89402524.6

申请日：1989-09-14

申请人： FUJITSU LIMITED

发明人： Endoh, Norio ,  Tanji, Shigeo ,  Hayashi, Kazutoshi ,  Yamada, Hideo

IPC分类号： H03M11/00

CPC分类号： H03M11/003

摘要： An input detecting apparatus, method in a switching matrix in which a plurality of switches are provided in the form of a matrix, which discriminates a sneak pass signal current caused by overlapping keying of up to 10 switches and is provided with a switching matrix including a driver circuit, a detecting circuit, a first group of a plurality of lines (1₀ - 1₆), each connected to the driver circuit (2), a second group of a plurality of lines (3₀ - 3₆), each connected to the detecting circuit, and a plurality of switching devices including a resistor (6) and a switching element (5) serially arranged, one end of each switching device being connected to one of the first group of lines and the other end to one of the second group of lines, the driver circuit having a decoder (11) which in turn connects one end of each one of the plurality of lines of the first group (1₀ - 1₆) to an electrical source having 0 voltage, one by one, the detecting circuit having a selector (7) selectively connecting in turn one end of the plurality of lines of the second group (3₀ - 3₆) to a voltage detecting circuit thereof, the rest of the end of the plurality lines of the second group being connected to a decoder in which the ends of the plurality lines of the second group are in turn opened in synchronization with the operation of the selector, and a means is provided for applying a predetermined voltage higher than the detecting voltage to detect the switching operation.

摘要翻译： 一种切换矩阵中的输入检测装置，其中以矩阵的形式提供多个开关，其识别由多达10个开关的重叠键控引起的潜行信号电流，并且提供有包括 驱动电路，检测电路，连接到驱动电路（2）的多条线（10-16）的第一组，多条线（30-36）的第二组，每条线连接到检测 电路，以及包括串联配置的电阻器（6）和开关元件（5）的多个开关器件，每个开关器件的一端连接到第一组线路之一，另一端连接到第二组中的一个 驱动电路具有解码器（11），该解码器又将第一组（10-16）的多条线中的每一条线的一端连接到具有0电压的电源，一个接一个地检测电路 具有选择器（7）选择性地连接 将第二组（30-36）的多条线路的一端分别连接到其电压检测电路，第二组的多条线的其余部分连接到解码器，其中， 第二组的多行又与选择器的操作同步地打开，并且提供用于施加高于检测电压的预定电压以检测开关操作的装置。