G11B 7/002 Recording, reproducing or erasing systems characterised by the shape of the carrier
Introduced: January 2000
Full Title
Full titles differ between systems:
Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor > Recording, reproducing or erasing systems characterised by the shape of the carrier
Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation , reproducing using an optical beam at lower power ; Record carriers therefor (G11B11/00, G11B13/00 take precedence) > Recording, reproducing or erasing systems characterised by the shape of the carrier
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2000.
Child Classifications
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- G11B 7/0025 with cylinders or cylinder-like carriers , e.g. truncated cones since 2000 IPC+CPC Available in IPC and CPC
- G11B 7/003 with webs , e.g. belts, spooled tapes or films of quasi-infinite extent since 2000 +2 CPC IPC+CPC Available in IPC and CPC