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DIFF Subgroup
H04N 19/169

characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of 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 coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding

Additional Content IPC

(Video) Object MPEG-4 object, i.e. a region of the image with arbitrary shape Slice slices A set of blocks within an image, e.g. a line of blocks. Block blocks A rectangular matrix of pixels. Macroblock macroblocks MPEG coding unit formed by four blocks arranged as a 2 x 2 matrix. Group of pictures groups of pictures MPEG coding unit formed by a set of consecutive pictures. Scalable video layer scalable video layers Coding unit of a scalable encoded video elementary stream

Of 11 combined children, 8 exist in both systems.

3 codes are CPC-only extensions.

IPC defines codes here since 2014.

Child Classifications

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  • H04N 19/177 the unit being a group of pictures [GOP] since 2014 IPC+CPC Available in IPC and CPC
  • H04N 19/179 the unit being a scene or a shot since 2014 IPC+CPC Available in IPC and CPC
  • H04N 19/18 the unit being a set of transform coefficients since 2014 IPC+CPC Available in IPC and CPC
  • H04N 19/182 the unit being a pixel since 2014 IPC+CPC Available in IPC and CPC
  • H04N 19/184 the unit being bits, e.g. of the compressed video stream since 2014 IPC+CPC Available in IPC and CPC
  • H04N 19/186 the unit being a colour or a chrominance component since 2014 IPC+CPC Available in IPC and CPC
  • H04N 19/187 the unit being a scalable video layer since 2014 IPC+CPC Available in IPC and CPC
  • H04N 19/188 CPC only CPC only
  • H04N 19/1883 CPC only CPC only
  • H04N 19/1887 CPC only CPC only

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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