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CPC Subgroup
H04N 19/46

Embedding additional information in the video signal during the compression process (H04N19/517, H04N19/68, H04N19/70 take precedence)

Full Title

Methods or arrangements for coding, decoding, compressing or decompressing digital video signals > Embedding additional information in the video signal during the compression process (H04N19/517, H04N19/68, H04N19/70 take precedence)

2 direct subcodes

Child Classifications

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  • H04N 19/463 by compressing encoding parameters before transmission
  • H04N 19/467 characterised by the embedded information being invisible, e.g. watermarking

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