DIFF Subgroup
H04N 19/134 characterised by the element, parameter or criterion affecting or controlling the adaptive coding
Introduced: January 2014
Full Title
Methods or arrangements for coding, decoding, compressing or decompressing digital video signals > using adaptive coding > characterised by the element, parameter or criterion affecting or controlling the adaptive coding
IPC and CPC are identically structured here. All 9 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2014.
Child Classifications
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- H04N 19/136 Incoming video signal characteristics or properties since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/146 Data rate or code amount at the encoder output since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/154 Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion (use of rate-distortion criteria H04N19/147) since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/156 Availability of hardware or computational resources, e.g. encoding based on power-saving criteria since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/157 Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/164 Feedback from the receiver or from the transmission channel since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/167 Position within a video image, e.g. region of interest [ROI] since 2014 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