Patent ID: 8780673
Filing Date: 2014-07-15
Classification: H02K,H02N,H04R,Y10T

Abstract:
1. An actuation method for generating a physical effect, at least one attribute of which corresponds to at least one characteristic of a digital input signal sampled periodically in accordance with a clock, the method comprising: providing at least one array of moving elements each constrained to travel alternately back and forth along a respective axis in response to an electromagnetic force operative upon said array when said array is in the presence of an alternating magnetic field; initially bringing said array of moving elements into at least one latching position and subsequently reducing the magnitude of said electromagnetic force; selectively latching at least one subset of said moving elements in at least one latching position thereby to prevent individual moving elements from responding to said electromagnetic force; receiving the clock and, accordingly, controlling application of said electromagnetic force to said array of moving elements; and receiving said digital input signal and controlling said latching accordingly.