A brush device for an electric machine having at least one brush and at least one element such as a helical, scroll, or plunger spring for pressing each brush against a rotating contact element, for example a commutator. Methods, devices and systems are described that use low energy reset pulses to reset cells that have been previously set using a method that keeps a portion of the PCM cells in an amorphous phase. The decoder is configured to obtain a motion vector difference between a motion vector for the first block and a motion vector for the second block, and determine a non-zero filter strength value based on the obtained coded block pattern of the first and second block as first priority and the obtained motion vector difference as second priority. A part on the strip engages the support at a point spaced from the fastener to cooperate with the fastener in accurately and precisely locating the strip. A plurality of offerings may be created for any software application.