Dreamwell, Ltd.

Ms Electronics LLC

Bag End, Inc.

Charles Emory Hughes, Ii

Michael Stephen DeFranks

Stuart F Rubin

Jonathan Hart

Tok Doun

Brian Howard Miller

Lezheng Fang

Audio speaker

Active noise control systems, devices, and methods are disclosed herein. Anti-snoring systems can include a first pillow unit having at least one error microphone and at least one speaker, at least one reference microphone configured to capture sound produced proximate to the at least one reference microphone, and a control unit operatively coupled to the first pillow unit and the at least one reference microphone. In some aspects, the control unit can be configured to produce an anti-noise in the at least one speaker disposed in the first pillow unit by processing signals received from the at least one error microphone and the at least one reference microphone using gated dynamic adjustments such that the anti-noise cancels any sound produced proximate the at least one reference.

Pillow set with snoring noise cancellation

An acoustical phase plug for use in loudspeakers produces a planar rectangular wavefront, or a wavefront with a desired amount of curvature, from the output aperture of the phase plug device when presented with a planar circular wavefront at the input aperture. The phase plug utilizes a waveguide that equalizes the travel paths from the input aperture to the output aperture. The waveguide essentially eliminates surface discontinuities thereby resulting in the reduction of diffraction of the wavefront travelling through the phase plug device.

Phase plug device

A coaxial speaker system that minimizes detrimental sound wave reflections from its high frequency speaker. The coaxial speaker system includes a high frequency speaker coaxially mounted within a low frequency speaker. The high frequency speaker includes a sound reproducing membrane, a voice coil assembly and magnet assembly for actuating the sound reproducing membrane in response to an electrical audio signal, and optionally a wave guide horn for directing sound waves produced by the sound reproducing membrane. The wave guide horn has a throat disposed adjacent the sound reproducing membrane and a mouth disposed opposite the throat. The low frequency speaker also includes a sound reproducing membrane assembly and a voice coil assembly and magnet assembly for actuating the sound reproducing membrane assembly in response to an electrical audio signal. At least a portion of the low frequency speaker sound reproducing membrane assembly is positioned adjacent the mouth of the wave guide horn (or adjacent the outer edge of the high frequency speaker sound reproducing membrane when no horn is provided) to inhibit the detrimental effects of sound waves produced by the high frequency speaker that reflect off the low frequency speaker.

Coaxial speaker system with improved transition between individual speakers

Growing community of inventors

Gastonia, NC, United States of America

Charles Emory Hughes, Ii