Patent ID: 7129657

Claim:
A powered assembly, comprising: at least one object that can be moved between a first configuration and a second configuration, the object being selected from the group consisting of window coverings, awnings, skylight coverings, curtains, and screens; at least one motor assembly; at least one actuator coupled to the motor assembly and the object to move the object when the motor is energized; and at least one position sensor to generate at least two phase shifted logic signals representative of the angular position of at least one of: the motor assembly, and the actuator, the position sensor comprising: plural brushes; and one and only one track defining a single radius, the track including at least one track segment defining a portion of a circle, the brushes riding on the track, relative motion between the track and brushes being effected when the object is moved to generate a signal representative of an angular position; and wherein an electrical contact between two brushes is established by one track segment when the signals are collected on the brushes, and wherein an electrical contact between two track segments is established by at least two brushes when the signals are collected on the track segments.