CPC Subgroup
H04N 19/146 Data rate or code amount at the encoder output
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 > Data rate or code amount at the encoder output
4 direct subcodes
Child Classifications
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- H04N 19/147 according to rate distortion criteria (rate-distortion as a criterion for motion estimation H04N19/567)
- H04N 19/149 by estimating the code amount by means of a model, e.g. mathematical model or statistical model
- H04N 19/15 by monitoring actual compressed data size at the memory before deciding storage at the transmission buffer
- H04N 19/152 by measuring the fullness of the transmission buffer
Top Applicants
Top 10 applicants by patent filingsfor 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