Invention Grant
- Patent Title: Apparatus and method for active noise reduction
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Application No.: US16403250Application Date: 2019-05-03
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Publication No.: US10665219B2Publication Date: 2020-05-26
- Inventor: Raymond Sobol
- Applicant: ZEROSOUND SYSTEMS INC.
- Applicant Address: CA Calgary
- Assignee: ZEROSOUND SYSTEMS INC.
- Current Assignee: ZEROSOUND SYSTEMS INC.
- Current Assignee Address: CA Calgary
- Agency: Bennett Jones LLP
- Main IPC: H04R1/00
- IPC: H04R1/00 ; H04R3/00 ; G10K11/16 ; G10K11/178 ; H04R1/40

Abstract:
A method for active noise reduction includes sensing one or more characteristics of a sound wave; calculating an inverted sound wave based on the one or more characteristics; and emitting the inverted sound wave by flowing a current, selected according to the inverted sound wave, through a wire under tension that passes through a positive pole of a magnet and a negative pole of the magnet, thereby causing the wire to vibrate. An apparatus for active noise reduction includes a microphone configured to detect one or more characteristics of a sound wave detected in a predetermined vicinity of the microphone; a processor coupled to the microphone, configured to calculate an inverted sound wave based on the one or more characteristics; a power supply; and at least one emitter module coupled to the processor, each emitter module including one or more magnets with a positive pole and a negative pole, a wire, made of a conductive material, under tension, that passes between the positive pole and the negative pole, and the power supply configured to deliver a current passing through the wire, the current selected by the processor to vibrate the wire and thereby emit the inverted sound wave.
Public/Granted literature
- US20190287511A1 APPARATUS AND METHOD FOR ACTIVE NOISE REDUCTION Public/Granted day:2019-09-19
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