IPC Subgroup
G11B 27/19 by using information detectable on the record carrier
Introduced: January 1985
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
Classification Context
- Section:
- PHYSICS
- Class:
- INFORMATION STORAGE
- Subclass:
- INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
3 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- G11B 27/22 Means responsive to presence or absence of recorded information signals
- G11B 27/24 by sensing features on the record carrier other than the transducing track
- G11B 27/28 by using information signals recorded by the same method as the main recording