Invention Grant
US4334219A Operation setting device having stationary touch-sensitive control
elements
失效
具有固定的触敏控制元件的操作设定装置
- Patent Title: Operation setting device having stationary touch-sensitive control elements
- Patent Title (中): 具有固定的触敏控制元件的操作设定装置
-
Application No.: US122689Application Date: 1980-02-19
-
Publication No.: US4334219APublication Date: 1982-06-08
- Inventor: Rudolf Paulus , Klaus Mischo
- Applicant: Rudolf Paulus , Klaus Mischo
- Applicant Address: DEX Leverkusen
- Assignee: AGFA-Gevaert AG
- Current Assignee: AGFA-Gevaert AG
- Current Assignee Address: DEX Leverkusen
- Priority: DEX2907811 19790228
- Main IPC: H03K17/96
- IPC: H03K17/96 ; G09G3/00
Abstract:
The operation setting device includes a keyboard having stationary control keys arranged on a transparent support plate of insulating material, each key of the keyboard being formed of a pair of transparent electrically conductive material secured to the outer face of the support plate and being connectable to a switching device sensitive to a change of resistance between the contacts in each pair. A visual identification card is located behind the support plate and having its indentification signs in register with respective keys.
Public/Granted literature
- US5419031A Attachable golf club grip for the layman Public/Granted day:1995-05-30
Information query
IPC分类:
