Abstract: A multi-phase coupled inductor includes a first iron core, a second iron core, and a plurality of coil windings. The first iron core includes a first body and a plurality of first core posts. The plurality of first core posts are connected to the first body. The second iron core is opposite to the first iron core. The second iron core and the first body are spaced apart from each other by a gap. The plurality of coil windings wrap around the plurality of first core posts, respectively. Each of the coil windings has at least two coils.

Abstract: The invention provides a movement detector for a composite signal, comprising a frame delay unit, a first combiner, a second combiner and a third combiner. The frame delay unit receives the composite signal to generate a one-frame delayed signal, a two-frame delayed signal, and a three-frame delayed signal. The first combiner generates a first difference from a first pair of the composite signal, the one-frame delayed signal, the two-frame delayed signal, and the three-frame delayed signal. The second mean generates a second difference from a second pair of the composite signal, the one-frame delayed signal, the two-frame delayed signal, and the three-frame delayed signal. The first pair is different from the second pair. The third combiner generates a third difference for detecting motion based on the first difference and the second difference.

Abstract: A motion detection method for detecting the difference in colors and an object position between a current frame and a previous frame through processing a composite video signal corresponding to both frames. The method includes: calculating a plurality of composite signal values included in the composite video signal to generate a calculation result; determining whether the calculation result conforms to a requirement to obtain a detecting result; and determining whether the colors and the object position are changed in two frames corresponding to the composite video signal according to the detecting result.

Abstract: The invention provides a movement detector for a composite signal, comprising a frame delay unit, a first combiner, a second combiner and a third combiner. The frame delay unit receives the composite signal to generate a one-frame delayed signal, a two-frame delayed signal, and a three-frame delayed signal. The first combiner generates a first difference from a first pair of the composite signal, the one-frame delayed signal, the two-frame delayed signal, and the three-frame delayed signal. The second mean generates a second difference from a second pair of the composite signal, the one-frame delayed signal, the two-frame delayed signal, and the three-frame delayed signal. The first pair is different from the second pair. The third combiner generates a third difference for detecting motion based on the first difference and the second difference.

Abstract: A motion detection method for detecting the difference in colors and an object position between a current frame and a previous frame through processing a composite video signal corresponding to both frames. The method includes: calculating a plurality of composite signal values included in the composite video signal to generate a calculation result; determining whether the calculation result conforms to a requirement to obtain a detecting result; and determining whether the colors and the object position are changed in two frames corresponding to the composite video signal according to the detecting result.