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DIFF Subgroup
H04N 5/93

Regeneration of the television signal or of selected parts thereof

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Details of television systems > Television signal recording > Television signal processing therefor > Regeneration of the television signal or of selected parts thereof

CPC:

Details of television systems (scanning details or combination thereof with generation of supply voltages H04N3/00) > Television signal recording > Television signal processing therefor > Regeneration of the television signal or of selected parts thereof

Additional Content IPC

Regeneration of colour television signals

Of 7 combined children, 6 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

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  • H04N 5/9305 CPC only CPC only
  • H04N 5/932 Regeneration of analogue synchronisation signals since 1995 IPC+CPC Available in IPC and CPC
  • H04N 5/935 Regeneration of digital synchronisation signals since 1995 IPC+CPC Available in IPC and CPC
  • H04N 5/937 by assembling picture element blocks in an intermediate store since 1995 IPC+CPC Available in IPC and CPC

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