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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

  1. HUAWEI TECHNOLOGIES COMPANY CN 101,476
  2. QUALCOMM US 101,139
  3. SAMSUNG ELECTRONICS COMPANY KR 96,655
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
  5. LG ELECTRONICS KR 55,253
  6. HUAWEI TECHNOLOGIES COMPANY 54,181
  7. SONY CORPORATION JP 35,309
  8. ZTE CORPORATION CN 32,950
  9. INTEL CORPORATION US 27,533
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498