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IPC 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

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC COMMUNICATION TECHNIQUE
Subclass:
PICTORIAL COMMUNICATION, e.g. TELEVISION

9 direct subcodes

Child Classifications

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  • H04N 19/142 Detection of scene cut or scene change
  • H04N 19/154 Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
  • H04N 19/156 Availability of hardware or computational resources, e.g. encoding based on power-saving criteria
  • H04N 19/162 User input
  • H04N 19/167 Position within a video image, e.g. region of interest [ROI]

Top Applicants

Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT

  1. QUALCOMM US 97,396
  2. HUAWEI TECHNOLOGIES COMPANY CN 96,502
  3. SAMSUNG ELECTRONICS COMPANY KR 86,981
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
  5. HUAWEI TECHNOLOGIES COMPANY 55,349
  6. LG ELECTRONICS KR 53,649
  7. CANON 33,341
  8. SONY CORPORATION JP 32,761
  9. ZTE CORPORATION CN 32,274
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327