DIFF Subgroup
H04N 19/102 characterised by the element, parameter or selection affected or controlled by 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 selection affected or controlled by the adaptive coding
IPC and CPC are identically structured here. All 10 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2014.
Child Classifications
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- H04N 19/103 Selection of coding mode or of prediction mode since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/115 Selection of the code volume for a coding unit prior to coding since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/117 Filters, e.g. for pre-processing or post-processing (sub-band filter banks H04N19/635) since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/119 Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/12 Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264 since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/127 Prioritisation of hardware or computational resources since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/129 Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO] since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/13 Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC] since 2014 IPC+CPC Available in IPC and CPC
- H04N 19/132 Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking 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