IPC Subgroup
G11B 27/32 on separate auxiliary tracks of the same or an auxiliary record carrier
Introduced: September 1968
Last revised: January 2006
Full Title
Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel > Indexing; Addressing; Timing or synchronising; Measuring tape travel > by using information detectable on the record carrier > by using information signals recorded by the same method as the main recording > on separate auxiliary tracks of the same or an auxiliary record carrier
Classification Context
- Section:
- PHYSICS
- Class:
- INFORMATION STORAGE
- Subclass:
- INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER