Visual light audio transmission system
AssigneeWave Sciences, LLC
InventorsJames Keith McElveen, Noah I. Schiffman, David C. Kroop
Life of this patent
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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 visible light audio system may be utilized, for example, in commercial, residential, or church buildings to transmit audio signals to occupants via the overhead lighting of the building. Embodiments of the present disclosure may be utilized in any commercial application where line of sight transmission of an audio signal is required or beneficial for occupants of an interior structure to receive a location-specific audio message.
Claims18
A visible light audio system comprising:
- a visible light transmitting apparatus comprising a modulator, a driver, and a light source, the visible light transmitting apparatus being operable to receive an audio source input and being operable to transmit a modulated visible light output corresponding to the audio source input at the light source, the audio source input comprising assistive information for at least one visually or hearing impaired user;
- a receiver comprising a headband having a plurality of photo diodes disposed on an upper surface of the headband, the plurality of photo diodes comprising a photo detector array, the photo detector array being operable to receive the modulated light intensity and convert the modulated light intensity into an electrical signal;
- a demodulation device being operably engaged with the photo detector array to receive the modulated frequency via a system bus, the demodulation device being operable to demodulate the electrical signal to produce an audio output corresponding to the audio source input;
- and,
- an audio output device being operably engaged with the demodulation device to deliver an audio output, the audio output device comprising one or more assistive listening devices or ear pieces.
A visible light audio system comprising:
- a visible light transmitting apparatus comprising a modulator, a driver, and a light source, the visible light transmitting apparatus being operable to receive an audio source input and being operable to transmit a modulated visible light output corresponding to the audio source input at the light source;
- a receiver comprising a headband having a plurality of apertures disposed on an upper surface of the headband, each aperture in the plurality of apertures defining a terminal end of each tube in a plurality of tubes, the plurality of tubes being operably engaged with at least one photo sensor, the at least one photo sensor being operable to receive the modulated visible light output and convert the modulated visible light output into an electrical signal;
- a demodulation device being operably engaged with the at least one photo detector to receive the electrical signal via a system bus, the demodulation device being operable to demodulate the electrical signal to produce an audio output corresponding to the audio source input;
- and,
- an audio output device being operably engaged with the demodulation device to deliver an audio output, the audio output device comprising one or more speakers.
A visible light audio system comprising:
- a visible light transmitting apparatus comprising a modulator, a driver, and a light source, the visible light transmitting apparatus being operable to receive an audio source input and being operable to transmit a modulated visible light output corresponding to the audio source input at the light source;
- a body-worn or body-carried receiver configured to be worn on a torso of a user having at least one photo detector disposed on a surface of the body-worn or body-carried receiver, the photo detector being operable to receive the modulated visible light output and convert the modulated visible light output into an electrical signal;
- a demodulation device being operably engaged with the at least one photo detector to receive the electrical signal via a system bus, the demodulation device being operable to demodulate the electrical signal to produce an audio output corresponding to the compressed audio source input;
- and,
- an audio output device being operably engaged with the demodulation device to deliver an audio output, the audio output device comprising one or more assistive listening devices or ear pieces.
Dependencies are inferred from the claim text.