FM wireless transmission for TV audio signals at 3fH carrier frequency

A transmission apparatus and method for transmitting stereo multiplexed audio signals from a received television signal having a horizontal frequency fH are provided. Right and left channel audio signals obtained by demodulation from the received television signal are added to form a first combined...

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Bibliographische Detailangaben
Hauptverfasser:	NAWARANGE, ASHOK, RODRIGUEZ, EFRAIN L, BORCHARDT, ROBERT L, MCGREEVY, WILLIAM T
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PICTORIAL COMMUNICATION, e.g. TELEVISION PUBLIC ADDRESS SYSTEMS TRANSMISSION
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Beschreibung
Zusammenfassung:	A transmission apparatus and method for transmitting stereo multiplexed audio signals from a received television signal having a horizontal frequency fH are provided. Right and left channel audio signals obtained by demodulation from the received television signal are added to form a first combined audio signal. The same signals are subtracted to form a second combined audio signal. A subcarrier is modulated with one of the first and second combined audio signals, the subcarrier having a frequency substantially equal to 3fH to form a subcarrier modulated audio signal. The other of the first and second combined audio signals is combined with the subcarrier suppressed signal to form a stereo multiplexed audio signal, and the stereo multiplexed audio signal is transmitted.