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CPC Subgroup
H04N 13/106

Processing image signals (for multi-view video sequence encoding H04N19/597)

Full Title

Stereoscopic video systems; Multi-view video systems; Details thereof > Processing, recording or transmission of stereoscopic or multi-view image signals > Processing image signals (for multi-view video sequence encoding H04N19/597)

12 direct subcodes

Child Classifications

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  • H04N 13/128 Adjusting depth or disparity
  • H04N 13/133 Equalising the characteristics of different image components, e.g. their average brightness or colour balance
  • H04N 13/139 Format conversion, e.g. of frame-rate or size
  • H04N 13/144 for flicker reduction
  • H04N 13/15 for colour aspects of image signals
  • H04N 13/156 Mixing image signals
  • H04N 13/161 Encoding, multiplexing or demultiplexing different image signal components (for multi-view video sequence encoding H04N19/597)
  • H04N 13/167 Synchronising or controlling image signals

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