James Keith Mcelveen

US Patent:

20130101136, Apr 25, 2013

Filed:

Oct 17, 2012

Appl. No.:

13/654225

Inventors:

James Keith McElveen - Charleston SC, US

Assignee:

Wave Sciences Corporation - Charleston SC

International Classification:

H04R 3/00

US Classification:

381 92

Abstract:

A wearable microphone array apparatus and system used as a directional audio system and as an assisted listening device. The present invention advances hearing aids and assisted listening devices to allow construction of a highly directional audio array that is wearable, natural sounding, and convenient to direct, as well as to provide directional cues to users who have partial or total loss of hearing in one or both ears. The advantages of the invention include simultaneously providing high gain, high directivity, high side lobe attenuation, and consistent beam width; providing significant beam forming at lower frequencies where substantial noises are present, particularly in noisy, reverberant environments; and allowing construction of a cost effective body-worn or body-carried directional audio device.

US Patent:

20130101141, Apr 25, 2013

Filed:

Oct 17, 2012

Appl. No.:

13/654135

Inventors:

Wave Sciences Corporation - Charleston SC, US
James Keith McElveen - Charleston SC, US

Assignee:

Wave Sciences Corporation - Charleston SC

International Classification:

H02B 1/00

US Classification:

381123

Abstract:

A directional transducer array system comprising a plurality of transducers with mathematical sequence spacing mounted on an array tile or host device. In an embodiment, the invention allows the construction of a receiving or transmitting, tiled (modular) directional audio array while simultaneously retaining desirable directional characteristics, improving gain, and limiting negative impacts on side lobe attenuation as the array is scaled (i.e. identical or similar tiles are added to or subtracted from the array); and allows the construction of a receiving or transmitting directional audio array that is light weight and robust enough to be used in body-worn, body-carried, vehicular, and fixed installations.

US Patent:

20130216083, Aug 22, 2013

Filed:

Oct 17, 2012

Appl. No.:

13/654171

Inventors:

James Keith McElveen - Charleston SC, US

Assignee:

Wave Sciences Corporation - Charleston SC

International Classification:

H04R 1/20
H04R 1/02
G10K 11/18

US Classification:

381337, 181175

Abstract:

A directional waveguide array apparatus can transmit and/or receive airborne or fluid-borne audio with the appropriate selection of transducers. The present invention advances directional waveguide arrays by allowing construction of a directional audio device with desired frequency bandwidths, array patterns, and gain by appropriate geometric configurations of the array of waveguide channel ports, as well as dimensioning and configuration of waveguide channel and chamber parameters. Embodiments of the present invention enable increased immunity to environmental noises, temperature, and humidity; low cost of construction; high reliability; simplicity of operation; very low power consumption; real-time steering of directivity (interference) pattern; wide range of audio powers that can be transmitted or received; and interchangeable transducer types.

US Patent:

6734792, May 11, 2004

Filed:

Dec 4, 2002

Appl. No.:

10/308270

Inventors:

James E. McElveen - Hartsville SC 29550

International Classification:

B60Q 126

US Classification:

340468, 340431, 340321, 340472, 362485, 40590, 4060601

Abstract:

A hitch-mounted warning sign apparatus for a vehicle for alerting approaching motorists of road work being conducted in the area. The hitch-mounted warning sign apparatus for a vehicle includes a receiver hitch being adapted to be mounted to a vehicle and including a tubular member having an open end, a bore extending therein through the open end, and a hole being disposed through a side wall of the tubular member; and also includes a sign support assembly being fastenably mounted to the receiver hitch; and further includes a fastener being removably extended through the hole of the receiver hitch for fastening the sign support assembly to the receiver hitch; and also includes a light-emitting assembly being attached to the sign support assembly; and further includes a sign assembly being mounted to the sign support assembly.

US Patent:

20200296492, Sep 17, 2020

Filed:

Mar 31, 2020

Appl. No.:

16/836726

Inventors:

- Charleston SC, US
James Keith McElveen - Charleston SC, US

International Classification:

H04R 1/02
H04R 3/00

Abstract:

A wearable microphone array apparatus and system used as a directional audio system and as an assisted listening device. The present invention advances hearing aids and assisted listening devices to allow construction of a highly directional audio array that is wearable, natural sounding, and convenient to direct, as well as to provide directional cues to users who have partial or total loss of hearing in one or both ears. The advantages of the invention include simultaneously providing high gain, high directivity, high side lobe attenuation, and consistent beam width; providing significant beam forming at lower frequencies where substantial noises are present, particularly in noisy, reverberant environments; and allowing construction of a cost effective body-worn or body-carried directional audio device.

US Patent:

20190326989, Oct 24, 2019

Filed:

Jul 2, 2019

Appl. No.:

16/460902

Inventors:

- Charleston SC, US
James Keith McElveen - Charleston SC, US

International Classification:

H04B 10/116
H04R 1/40
H04R 3/00
G10L 21/0232
H04B 10/54

Abstract:

A visible light audio system is operable to enable free space optical communication of audio signals via transmission of modulated light intensity at a light source to a photo diode being operably engaged with a demodulator and audio output device. Embodiments of the present disclosure enable a plurality of visible light transmitting apparatuses being installed in a commercial or residential dwelling and operably engaged over a network to combine their microphone inputs via spatial, amplitude, spectral, and/or temporal filtering and physical and geometrical modeling methods to separate one or more acoustic sources using a visible light audio system comprising an array of light sources being operable to receive an audio source input.

US Patent:

20170094407, Mar 30, 2017

Filed:

Sep 29, 2016

Appl. No.:

15/280343

Inventors:

James Keith McElveen - Mount Pleasant SC, US

Assignee:

Wave Sciences LLC - Charleston SC

International Classification:

H04R 3/00
H04R 1/32

Abstract:

A wearable, shoulder-mounted microphone array apparatus and system used as a bi-directional audio and assisted listening device system. The present invention advances hearing aids and assisted listening devices to allow construction of a highly directional audio array that is wearable, natural sounding, and convenient to direct, as well as to provide directional cues to users who have partial or total loss of hearing in one or both ears. The advantages of the invention include simultaneously providing high gain, high directivity, high side lobe attenuation, and consistent beam width; providing significant beam forming at lower frequencies where substantial noises are present, particularly in noisy, reverberant environments; and allowing construction of a cost effective body-worn or body-carried directional audio device.

US Patent:

20160330545, Nov 10, 2016

Filed:

May 5, 2015

Appl. No.:

14/703981

Inventors:

James Keith McElveen - Mount Pleasant SC, US
Noah Schiffman - Charleston SC, US
Brad Smith - Charleston SC, US

Assignee:

Wave Sciences LLC - Charleston SC

International Classification:

H04R 3/00
H04R 1/40

Abstract:

A directional microphone array which can be integrated into a case for a portable computing device. A microphone array board connects to a surface of a laptop computer, tablet computer or smart phone, which can be steered in the direction of a target source. An audio processing module (APM) is operably engaged with the array board to receive a first staged beamformed audio input from the array board, and process a second beamformed stage audio output.