FIELD: TV equipment. SUBSTANCE: device generates required number of sound channels using sound frequency modulators which are connected to mixer which is connected to transmitter. Receiving part of device has band-pass filters, phase demodulators, amplitude detectors and switches. EFFECT: possibility to select between soundtrack in required language and stereo sound. 2 dwg
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Authors
Dates
1998-05-27—Published
1997-10-01—Filed