Loading patent…
AssigneeOwens Corning Fiberglas Technology, Inc.
InventorsVijay K. Varadan, Vasundara V. Varadan, Xiao-Qi Bao, Kenneth B. Carney, John L. Olinger, Fred S. Coffey
Estimating the term…
A method for reducing noise generated by the operation of a noise-producing machine includes sensing the noise of the machine with a piezoelectric sensor, sending an activation signal, responsive to the sensed noise of the machine, to activate a piezoelectric actuator to reduce the noise of the machine, where the piezoelectric actuator is independent of a wave guide. Further, a parameter of the machine indicative of the speed of the machine is sensed with a second sensor, and the activation signal is corrected, responsive to the sensed parameter of the machine, to optimize the noise reduction of the piezoelectric material.
A method for reducing noise generated by the operation of a noise-producing machine comprising:
A method for reducing noise generated by the operation of a noise-producing machine, where the machine produces periodic noise bursts, comprising:
A method for reducing noise generated by the operation of a noise-producing machine, where the machine causes periodic impacts of one element against another, thereby producing periodic noise bursts, comprising:
Dependencies are inferred from the claim text.