DIFF Subgroup
H04L 47/26 using explicit feedback to the source, e.g. choke packets
Introduced: January 2022
Full Title
Full titles differ between systems:
IPC:
Traffic control in data switching networks > Flow control; Congestion control > using explicit feedback to the source, e.g. choke packets
CPC:
Traffic control in data switching networks (arrangements for detecting or preventing errors in the information received H04L1/00) > Flow control; Congestion control > using explicit feedback to the source, e.g. choke packets
Of 4 combined children, 3 exist in both systems.
1 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2022.
Child Classifications
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- H04L 47/263 Rate modification at the source after receiving feedback since 2022 IPC+CPC Available in IPC and CPC
- H04L 47/267 sent by the destination endpoint (network streaming of media packets with control of the source by the destination H04L65/613) since 2022 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class H04,2013–2023, worldwide · Source: EPO PATSTAT
- QUALCOMM US 97,396
- HUAWEI TECHNOLOGIES COMPANY CN 96,502
- SAMSUNG ELECTRONICS COMPANY KR 86,981
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
- HUAWEI TECHNOLOGIES COMPANY 55,349
- LG ELECTRONICS KR 53,649
- CANON 33,341
- SONY CORPORATION JP 32,761
- ZTE CORPORATION CN 32,274
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327
Top Applicants (CPC)
Class H04,2013–2023, worldwide · Source: EPO PATSTAT
- HUAWEI TECHNOLOGIES COMPANY CN 101,476
- QUALCOMM US 101,139
- SAMSUNG ELECTRONICS COMPANY KR 96,655
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
- LG ELECTRONICS KR 55,253
- HUAWEI TECHNOLOGIES COMPANY 54,181
- SONY CORPORATION JP 35,309
- ZTE CORPORATION CN 32,950
- INTEL CORPORATION US 27,533
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498