Audio system for playing back recorded information by remote transmission
First Claim
1. An audio system for playing back recorded information by remote transmission, comprising:
- a transmitting output unit having an analog/digital converter converting, each of an analog audio signal and an L/R channel discriminating stereo signal, acquired from the recorded information by an audio playback server, into digital signals each having a digital waveform, and a superimposing circuit creating a first superimposed digital signal by performing, selectively, addition or subtraction between the digital signals respectively corresponding to the analog audio signal and the L/R channel discriminating stereo signal; and
a receiving input unit, connected by a first cable to the transmitting output unit, having a separating circuit separating the first superimposed digital signal, transmitted over the first cable from the transmitting output unit, into digital signals respectively corresponding to the analog audio signal and the L/R channel discriminating stereo signal, and a digital/analog conversion circuit converting the digital signal corresponding to the analog audio signal into analog form, whereinthe receiving input unit outputs an analog audio stereo signal to an audio output device for playback in accordance with the L/R channel discriminating stereo signal.
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Abstract
The present invention is directed to an audio system for playing back recorded information by remote transmission. At the transmitting end of the system, an analog audio signal acquired by a server from a recording medium is first converted into a digital data signal, and then a signal created by superimposing the digital data signal with a stereo signal is transmitted out. At the receiving end, an input circuit receives the superimposed signal transmitted over a cable from the transmitting end, and separates it into the digital data signal and the stereo signal; then, the digital data signal is converted back into the analog audio signal which is output to speakers for stereo playback. As, of the plurality of signals to be transmitted, two signals are combined into one signal for transmission, the number of connecting cables can be reduced.
6 Citations
6 Claims
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1. An audio system for playing back recorded information by remote transmission, comprising:
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a transmitting output unit having an analog/digital converter converting, each of an analog audio signal and an L/R channel discriminating stereo signal, acquired from the recorded information by an audio playback server, into digital signals each having a digital waveform, and a superimposing circuit creating a first superimposed digital signal by performing, selectively, addition or subtraction between the digital signals respectively corresponding to the analog audio signal and the L/R channel discriminating stereo signal; and a receiving input unit, connected by a first cable to the transmitting output unit, having a separating circuit separating the first superimposed digital signal, transmitted over the first cable from the transmitting output unit, into digital signals respectively corresponding to the analog audio signal and the L/R channel discriminating stereo signal, and a digital/analog conversion circuit converting the digital signal corresponding to the analog audio signal into analog form, wherein the receiving input unit outputs an analog audio stereo signal to an audio output device for playback in accordance with the L/R channel discriminating stereo signal. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification