IPC Subgroup
G11B 23/44 Information for display simultaneously with playback of the record, e.g. photographic matter
Introduced: September 1968
Last revised: January 2006
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 > Visual features other than those contained in record tracks or represented by sprocket holes > Information for display simultaneously with playback of the record, e.g. photographic matter
Classification Context
- Section:
- PHYSICS
- Class:
- INFORMATION STORAGE
- Subclass:
- INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER