Photon audio amplifier and fiber link for audio systems
First Claim
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1. A method to connect all audio and video components of an audio/video system is comprising the following steps:
- providing an audio source, at least one volume control module of audio signals, comprising a digital potentiometer setting the strength of the audio signals, wherein the control potentiometer is controlled by a volume control signal from an infrared decoder of an infrared receiver unit, an amplifier having an input and an output, wherein the input is said audio signal modified by said potentiometer and its output is the input of a buffer amplifier, said buffer amplifier having an input and an output, wherein its output is the input of a Transmitter Laser Analog Module, and said infrared receiver unit receiving infrared volume control signals comprising an infrared receiver receiving said infrared volume control signals, wherein its output is the input of said infrared decoder, and said infrared decoder wherein its output controls said digital control potentiometer, a means to convert for each audio channel electrical signals to optical signals, a fiber optic cable for each audio channel, a means to convert for each audio channel optical signals to electrical signals, and an amplifier for each audio channel to amplify electrical signals;
converting electrical output signals of said audio source from digital to analog if said output signals are digital;
controlling volume of said analog signals by said volume control module;
converting said volume controlled analog signals from electrical signals to optical signals;
transmitting said optical signals via said optical fiber cables to said at least one means to convert optical signals to electrical signals;
converting said optical signals to electrical signals;
amplifying said transmitted and from optical to electrical converted signals; and
providing amplified signals to a speaker.
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Abstract
Systems and methods to minimize signal loss and distortions with connections of audio sources and speakers are disclosed. Fiber optic cables are used instead of conventional cables. The audio signals are kept always in the analog domain, no matter if they are in optical or electric format. The strength of the audio signals can be controlled by a volume control unit. A small amplifier unit can either directly plugged to speakers are connected to the speakers via a short speaker cable. A preamplifier is no more necessary in the system.
13 Citations
32 Claims
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1. A method to connect all audio and video components of an audio/video system is comprising the following steps:
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providing an audio source, at least one volume control module of audio signals, comprising a digital potentiometer setting the strength of the audio signals, wherein the control potentiometer is controlled by a volume control signal from an infrared decoder of an infrared receiver unit, an amplifier having an input and an output, wherein the input is said audio signal modified by said potentiometer and its output is the input of a buffer amplifier, said buffer amplifier having an input and an output, wherein its output is the input of a Transmitter Laser Analog Module, and said infrared receiver unit receiving infrared volume control signals comprising an infrared receiver receiving said infrared volume control signals, wherein its output is the input of said infrared decoder, and said infrared decoder wherein its output controls said digital control potentiometer, a means to convert for each audio channel electrical signals to optical signals, a fiber optic cable for each audio channel, a means to convert for each audio channel optical signals to electrical signals, and an amplifier for each audio channel to amplify electrical signals; converting electrical output signals of said audio source from digital to analog if said output signals are digital; controlling volume of said analog signals by said volume control module; converting said volume controlled analog signals from electrical signals to optical signals; transmitting said optical signals via said optical fiber cables to said at least one means to convert optical signals to electrical signals; converting said optical signals to electrical signals; amplifying said transmitted and from optical to electrical converted signals; and providing amplified signals to a speaker. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system to transmit analog electronic signals from an audio source to speakers via fiber optic cables is comprising:
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a Transmitter Laser Analog Module for each audio channel converting electronic signals into modulated optical signals, wherein the volume of said electronic signals is controlled by a volume control module comprising a digital control potentiometer setting the strength of said electronic signals, wherein the control potentiometer is controlled by a volume control signal from an infrared decoder of an infrared receiver unit; a volume control module controlling the volume of said electronic signals comprising; a digital control potentiometer setting the strength of said electronic signals, wherein the control potentiometer is controlled by a volume control signal from an infrared decoder of an infrared receiver unit; an amplifier having an input and an output, wherein the input is said audio signal modified by said potentiometer and its output is the input of a buffer amplifier; said buffer amplifier having an input and an output, wherein its output is the input of a Transmitter Laser Analog Module; said infrared receiver unit receiving infrared volume control signals comprising; an infrared receiver receiving said infrared volume control signals, wherein its output is the input of said infrared decoder; and said infrared decoder wherein its output controls said digital control potentiometer; a Receiver Laser Analog Module for each audio channel converting optical signals into analog electrical signals; a fiber optic cable for each audio channel to transmit said optical signals from said Transmitter Laser Analog Module to said Receiver Laser Analog Module; and an amplifier unit for each audio channel to amplify said electrical signals received by said Receiver Laser Analog Module. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method to supply DC power to noise-sensitive electronic devices comprising the method steps:
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providing two battery packs, one battery charger, a battery voltage monitor, a relay driver, and an electronic device to be powered; charging a first battery pack having a lower voltage than a second battery pack via said charger and providing power to said electronic device by said second battery pack, wherein the speed of charging is higher than the speed of discharging; stopping charging of said first battery pack if a maximum voltage is reached; providing power to said electronic device by said first battery pack when said second battery pack has discharged to a minimum level and start charging said second battery pack by said charger; and charging and discharging said two battery packs alternatively.
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Specification