Method of controlling a motorized window treatment

Details Method of controlling a motorized window treatment Method of controlling a motorized window treatment

2007-04-17

2010-06-15

Donels, Jeffrey (Department: 2832)

Electricity: motive power systems

Automatic and/or with time-delay means

Movement, position, or limit-of-travel

C318S469000, C318S256000, C318S283000, C318S563000, C318S565000, C318S383000, C318S434000, C160S309000, C160S310000, C160S238000, C160S331000

Reexamination Certificate

active

07737653

ABSTRACT:
A method of controlling a motorized window treatment provides for continued operation of the motorized window treatment during an overload condition, a low-line condition, or an electrostatic discharge (ESD) event. The motorized window treatment is driven by an electronic drive unit having a motor, a motor drive circuit, a rotational position sensor, a controller, and a memory for storing the command. The controller stores the present position of the motorized window treatment in the memory each time the rotational position of the motor changes by a predetermined angle, such that a plurality of positions are stored in the memory. When the controller is reset due to an overload condition or ESD event, the controller recalls the desired position from the memory, determines the present position, and continues to drive the motor drive circuit in response to the command and the present position.

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