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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

Top Applicants

Top 10 applicants by patent filingsfor class G11, 2013–2023, worldwide · Source: EPO PATSTAT

  1. MICRON TECHNOLOGY US 10,574
  2. SK HYNIX KR 9,138
  3. SAMSUNG ELECTRONICS COMPANY KR 9,004
  4. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 3,739
  5. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,443
  6. INTEL CORPORATION US 2,952
  7. SANDISK TECHNOLOGIES US 2,905
  8. WESTERN DIGITAL TECHNOLOGIES US 2,630
  9. TOSHIBA CORPORATION JP 2,593
  10. SEAGATE TECHNOLOGY US 2,472