SPRING TENSIONED ROLL TYPE MOTORIZED BLIND OR SHADE SYSTEM HAVING AN EXTERNAL POWER SUPPLY OR MOTOR CONTROLLER

摘要

A motorized roller shade includes a roller shade tube including an outer surface, an inner surface defining an inner cavity, and at least one end portion, a shade attached to the outer surface of the roller shade tube, and a counterbalancing unit configured to provide a counterbalancing force to the roller shade. The motorized shade further includes a motor configured to provide rotational exertion to the roller shade, a controller configured to provide control signals to the motor, a power supply configured to provide power at least to one of the motor and the controller, and a transfer device configured to transfer one of the control signals to the motor that is configured to rotate and power to the controller that is configured to rotate from a stationary external source.