High efficiency fan with adaptive noise cancellation

Details High efficiency fan with adaptive noise cancellation High efficiency fan with adaptive noise cancellation

G - Physics

10

K

G10K 11/16 (2006.01) F04D 29/66 (2006.01) G10K 11/178 (2006.01)

Patent

CA 2113068

2113068 9302445 PCTABS00019 This invention relates to a new type of compact high efficiency fan utilizing microphones (74, 75), a loudspeaker (69, 70) and a totally adaptive noise cancellation controller (73) whereby the design of the fan eliminates broadband noise and the controller reduces the remaining tonal component thus producing a high efficient silent fan.

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