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Hitachi Ltd
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Hitachi Ltd
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Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP50083489ApriorityCriticalpatent/JPS527711A/en
Publication of JPS527711ApublicationCriticalpatent/JPS527711A/en
PURPOSE: In TV, etc., recording density in media is increased by eliminating speech heads, tracks, etc. by mixing speech signals and image signals which are respectively FM modulated and recording/playing them.