with provision for auxiliary signals

Full Title

Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus > with provision for auxiliary signals

Child Classifications

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• G11B 23/32 Electrical or mechanical contacting means; Tape stop foils
• G11B 23/34 Signal means additional to the main recording track, e.g. photoelectric sensing of sprocket holes for timing
• G11B 23/36 Signals on record carriers or on containers and recorded by the same method as the main recording