Control unit for switching and controlling household appliances
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United States of America Patent
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-
Nov 30, 1999
Grant Date -
N/A
app pub date -
Nov 6, 1997
filing date -
Nov 6, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A control unit (1) for switching and controlling functions (6) of household appliances has a continuous control surface (2) with operational areas (3) and a printed film (5). Several piezosensors (4) are arranged on a back of a plate forming the control surface (2), connected firmly and rigidly to the plate. The piezosensors (4) can be located in a film packet (9), for example, through which the piezosensors (4) are electrically connected to a processor (12). Through an offset arrangement of the piezosensors (4) in a matrix pattern direct illumination or back lighting of the printed film (5) can be achieved, thereby improving an operator's visual recognition while permitting accurate recognition of a function by the processor (12). An input filter (15) prevents operator error due to unintentional actuation of the control unit.
First Claim
Family
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Cited Art Landscape
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