Patent ID: 7071643

Claim:
A motor system comprising: a rotor; four brushes electrically connected to said rotor, each of said four brushes being selectively connected to said rotor in one of at least two of a plurality of different states; a stator including two magnetic poles; and a circuit configured to selectively switch each of said brushes between the at least two different states such that said circuit may: rotate said rotor at a first speed in a first direction by connecting a first of said brushes in a first of the states, a second of said brushes in a second of the states, and a third and a fourth of said brushes in a third of the states; rotate said rotor at a second speed in the first direction by connecting said first brush in the first state, said third brush and said fourth brush in the second state, and said second brush in the third state; and rotate said rotor in a second rotational direction opposite to the first rotational direction by connecting said second brush in the first state and at least one of said first brush, said third brush and said fourth brush in the second state.