Multiple audio channel broadcast system
First Claim
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1. A system for the noise-free broadcasting of audio programming to a wide listener base comprising:
- means for broadcasting independent frequency modulated microwave carriers modulated only with audio program material, one each carrier corresponding to a different channel of audio program material, said broadcasting means including means for generating said independent carriers, means for combining said generated carriers to produce a combined signal, an omnidirectional antenna and means for coupling said combined signal to said antenna; and
,means for receiving the broadcast independent microwave carriers to produce corresponding received signals, downconverting said received signals to TV band frequencies and demodulating at least one of the downconverted carriers so as to extract the corresponding channel of audio program material.
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Abstract
A microwave system is provided for the broadcast of multiple channels of audio programming to a wide listener base, in which noise-free transmission of multiple audio channels is accomplished through microwave transmission followed by down converting the received signal to television band frequencies, accomplished in one embodiment through the use of a single MDS channel.
131 Citations
6 Claims
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1. A system for the noise-free broadcasting of audio programming to a wide listener base comprising:
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means for broadcasting independent frequency modulated microwave carriers modulated only with audio program material, one each carrier corresponding to a different channel of audio program material, said broadcasting means including means for generating said independent carriers, means for combining said generated carriers to produce a combined signal, an omnidirectional antenna and means for coupling said combined signal to said antenna; and
,means for receiving the broadcast independent microwave carriers to produce corresponding received signals, downconverting said received signals to TV band frequencies and demodulating at least one of the downconverted carriers so as to extract the corresponding channel of audio program material. - View Dependent Claims (3, 4, 5, 6)
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2. A microwave system for the noise-free broadcasting of audio programming to a wide listener base, comprising:
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means for generating at least one channel of audio programming; an omnidirectional microwave transmitting system including a transmitter having a modulator and, means for providing said modulator only with said audio programming so as to produce a corresponding modulated independent microwave carrier, each modulated independent microwave carrier corresponding to an audio channel, an omnidirectional antenna, and means for coupling each said corresponding independent carrier to said omnidirectional antenna for the transmission of each said modulated independent microwave carrier; means for receiving each said transmitted independent microwave carrier and for downconverting each received independent microwave carrier to television band frequencies to produce a downconverted signal; and
,means for demodulating the downconverted signal to reproduce said audio programming.
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Specification