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Priority claimed from DE3420516Aexternal-prioritypatent/DE3420516C2/en
Priority claimed from DE3501087Aexternal-prioritypatent/DE3501087C2/en
Application filed by Telefunken Fernseh & RundfunkfiledCriticalTelefunken Fernseh & Rundfunk
Priority claimed from EP85902526Aexternal-prioritypatent/EP0185692B2/en
Application grantedgrantedCritical
Publication of ATE42854T1publicationCriticalpatent/ATE42854T1/en