IPC Subgroup
G11B 19/02 Control of operating function, e.g. switching from recording to reproducing
Introduced: September 1968
Last revised: January 2006
Full Title
Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function > Control of operating function, e.g. switching from recording to reproducing
Classification Context
- Section:
- PHYSICS
- Class:
- INFORMATION STORAGE
- Subclass:
- INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7 direct subcodes
Child Classifications
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- G11B 19/04 Arrangements for preventing, inhibiting, or warning against, double recording on the same blank, or against other recording or reproducing malfunctions
- G11B 19/06 by counting or timing of machine operations
- G11B 19/08 by using devices external to the driving mechanisms, e.g. coin-freed switch
- G11B 19/1 by sensing presence or absence of record in accessible stored position or on turntable
- G11B 19/12 by sensing distinguishing features of records, e.g. diameter
- G11B 19/14 by sensing movement or position of head, e.g. means moving in correspondence with head movements
- G11B 19/16 Manual control
Top Applicants
Top 10 applicants by patent filingsfor class G11, 2013–2023, worldwide · Source: EPO PATSTAT
- MICRON TECHNOLOGY US 10,574
- SK HYNIX KR 9,138
- SAMSUNG ELECTRONICS COMPANY KR 9,004
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 3,739
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,443
- INTEL CORPORATION US 2,952
- SANDISK TECHNOLOGIES US 2,905
- WESTERN DIGITAL TECHNOLOGIES US 2,630
- TOSHIBA CORPORATION JP 2,593
- SEAGATE TECHNOLOGY US 2,472