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PCE
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CPC Subgroup
H04N 19/65

using error resilience

Full Title

Methods or arrangements for coding, decoding, compressing or decompressing digital video signals > using error resilience

4 direct subcodes

Child Classifications

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  • H04N 19/66 involving data partitioning, i.e. separation of data into packets or partitions according to importance
  • H04N 19/67 involving unequal error protection [UEP], i.e. providing protection according to the importance of the data
  • H04N 19/68 involving the insertion of resynchronisation markers into the bitstream
  • H04N 19/69 involving reversible variable length codes [RVLC]

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