A wireless listening system includes a base operable to receive an electrical signal corresponding to an audio signal, including the ring of an incoming telephone call, up-convert the audio signal to an infrared signal, and transmit the infrared audio signal wirelessly therefrom, and a wireless head
A wireless listening system includes a base operable to receive an electrical signal corresponding to an audio signal, including the ring of an incoming telephone call, up-convert the audio signal to an infrared signal, and transmit the infrared audio signal wirelessly therefrom, and a wireless headset operable to selectably receive either the infrared audio signal transmitted by the base, or an infrared signal corresponding to an audio signal transmitted by a public address system, down-convert the received signal back into the audio signal, and audibly reproduce the audio signal to a wearer of the headset. The system enables a hearing impaired listeners to enjoy their favorite audio programs without disturbing nearby persons with normal hearing and without missing an incoming telephone call, and is also compatible with public IR PA systems currently used to assist the hearing impaired community.
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1. A wireless listening system, comprising: a base operable to receive an electrical signal corresponding to an audio signal, up-convert the audio signal to an infrared signal, and transmit the infrared audio signal wirelessly therefrom;a wireless headset operable to selectably receive either the in
1. A wireless listening system, comprising: a base operable to receive an electrical signal corresponding to an audio signal, up-convert the audio signal to an infrared signal, and transmit the infrared audio signal wirelessly therefrom;a wireless headset operable to selectably receive either the infrared audio signal transmitted by the base, or infrared signal corresponding to an audio signal transmitted by an infrared audio signal source, down-convert the received signal back into the audio signal, and audibly reproduce the audio signal to a wearer of the headset;the base is further operable to detect an electrical signal corresponding to an incoming telephone call, up-convert the signal into an infrared incoming telephone call notification signal, and transmit the notification signal wirelessly therefrom; andthe headset is further operable to receive the infrared notification signal transmitted by the base unit, down-convert the notification signal received into an incoming telephone call signal, and audibly reproduce the incoming telephone call signal to the wearer of the headset. 2. The system of claim 1, wherein the base is further operative to frequency modulate a carrier signal with the audio and incoming telephone call signals. 3. The system of claim 1, wherein the audio signal comprises separate left and right sound channels, and wherein the base and the headset are respectively operative to receive, up-convert and transmit, and to receive, down-convert, and audibly reproduce, each of the channels to the wearer simultaneously and separately from each other. 4. The system of claim 3, wherein the left and right channels of the audio program are respectively transmitted by the base and received by the headset on different carrier frequencies. 5. The system of claim 4, wherein one of the channels is transmitted on a carrier frequency of 2.3 MHz and the other channel is transmitted on a carrier frequency of 2.8 MHz. 6. The system of claim 1, wherein the infrared audio signal is respectively transmitted by the infrared audio signal source and received by the headset on a carrier frequency of 95 KHz. 7. The system of claim 1, wherein the headset is further operative to adjustably apply a minimum of 50 dB and 120 dB SPL of amplification to the audio signal reproduced to the wearer. 8. The system of claim 1, wherein: the headset comprises a rechargeable battery;the base comprises a battery charger;the base is adapted to receive the headset in a complementary, plug-in engagement; and,the battery charger is operative to charge the battery while the base and the headset are engaged with each other. 9. The system of claim 1, wherein the headset comprises a pair of stethoscope ear-pieces that are biased toward each other, and are operative to activate the headset when spread apart and to deactivate the headset when biased together. 10. The system of claim 1, wherein the base comprises a timer that deactivates the base after a predetermined period of time during which no audio signal is received by the base, and that reactivates the base upon receipt of an audio signal. 11. The system of claim 1, further comprising a microphone operative to receive an acoustic signal from a sound source, convert the acoustic signal into an electrical audio signal and to input the audio signal into the base. 12. A method of enabling a hard-of-hearing person to better hear an audio program and without missing an incoming telephone call, the method comprising: transforming the audio program into a corresponding electrical signal;up-converting the electrical signal to an infrared signal; transmitting the infrared signal wirelessly to a wireless headset;down-converting the infrared signal back into the electrical signal with the headset;retransforming the electrical signal back into the audio program with the headset such that the program can be heard by the headset wearer;wherein the audio program can include the ring signal of an incoming telephone call and an audio signal from an audio source;the audio program comprises a stereo program; the up-converting comprises up-converting electrical signals respectively corresponding to left and right channels of the program to corresponding left and right infrared signals; andthe transmitting comprises simultaneously transmitting the left and right infrared signals on respective ones of two different carrier signal frequencies. 13. The method of claim 12, wherein the carrier signal frequencies comprise 2.3 and 2.8 MHz signals, respectively. 14. The method of claim 12, wherein the transforming is effected by an electrical appliance or a telephone. 15. The method of claim 12, wherein the transforming, the up-converting and the transmitting is effected by an infrared audio signal source transmitting on a carrier signal frequency of 95 Khz. 16. The method of claim 12, wherein the transforming is effected by a microphone. 17. The method of claim 12, further comprising adjustably amplifying the retransformed electrical signal with the headset. 18. The method of claim 12, further comprising adjusting the balance between the left and right channels with the headset.
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이 특허에 인용된 특허 (9)
Haussmann,Mathias, Earplug and method for manufacturing the same.
Neuman Bernard (7972-A Lexington Club Delray Beach FL 33446) Neuman Sandra J. (7972-A Lexington Club Delray Beach FL 33446), Integral radio and infrared assistive listening device.
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