DIFF Subgroup
G11B 27/022 Electronic editing of analogue information signals, e.g. audio or video signals
Introduced: January 1990
Full Title
Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel > Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers > Electronic editing of analogue information signals, e.g. audio or video signals
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 1990.
Child Classifications
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- G11B 27/024 on tapes (G11B27/028, G11B27/029 take precedence) since 1990 IPC+CPC Available in IPC and CPC
- G11B 27/026 on discs (G11B27/028, G11B27/029 take precedence) since 1990 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
Class G11,2013–2023, worldwide · Source: EPO PATSTAT
- MICRON TECHNOLOGY US 12,397
- SAMSUNG ELECTRONICS COMPANY KR 12,238
- SK HYNIX KR 11,371
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 4,601
- INTEL CORPORATION US 3,874
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,866
- SANDISK TECHNOLOGIES US 3,151
- SK HYNIX 3,143
- SAMSUNG ELECTRONICS COMPANY 3,073
- WESTERN DIGITAL TECHNOLOGIES US 2,961