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Priority claimed from JP14752882Aexternal-prioritypatent/JPS5938911A/ja
Priority claimed from JP57152752Aexternal-prioritypatent/JPS5943682A/ja
Priority claimed from JP16101082Aexternal-prioritypatent/JPS5952403A/ja
Priority claimed from JP58094182Aexternal-prioritypatent/JPS59221854A/ja
Application filed by Hitachi Ltd, Hitachi Video EngfiledCriticalHitachi Ltd
Priority claimed from EP83108437Aexternal-prioritypatent/EP0102600B1/de
Application grantedgrantedCritical
Publication of ATE61684T1publicationCriticalpatent/ATE61684T1/de