Remotely controlled blind arrangement

Details Remotely controlled blind arrangement Remotely controlled blind arrangement

1997-11-13

1999-06-01

Ro, Bentsu

Electricity: motive power systems

Supplied or controlled by space-transmitted electromagnetic...

318286, 318468, 318480, 49 25, E06B 926

Patent

active

059090936

ABSTRACT:
A remotely controlled blind arrangement comprises a head rail with an operating member for operation the blind arrangement. The blind arrangement can be controlled by means of a remote control device and is powered by a power supply such as for instance a battery. According to the invention the blind arrangement comprises a wake-up circuit for periodically switching the processor unit between an active status and a sleep status. The processor unit periodically calibrates the wake-up unit to maintain a constant period wake-up signal. Hereby the wake-up circuit can be made from relatively cheap components and drifts of the wake-up signal due to the decreasing battery power or temperature influences can be reduced. In an embodiment according to the present invention the processor unit is adapted to disregard the signal of the transmitter when the blind has a fully tilted, fully deployed or fully retracted position for further energy saving.

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patent: 5603371 (1997-02-01), Gregg
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