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PCE
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DIFF Subgroup
H04L 5/06

the signals being represented by different frequencies (combined with time-division multiplexing H04L5/26)

Introduced: September 1968

Title

Titles differ between systems:

IPC: the signals being represented by different frequencies

CPC: the signals being represented by different frequencies (combined with time-division multiplexing H04L5/26)

Full Title

Full titles differ between systems:

IPC:

Arrangements affording multiple use of the transmission path > Channels characterised by the type of signal > the signals being represented by different frequencies

CPC:

Arrangements affording multiple use of the transmission path > Channels characterised by the type of signal > the signals being represented by different frequencies (combined with time-division multiplexing H04L5/26)

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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  • H04L 5/08 each combination of signals in different channels being represented by a fixed frequency IPC+CPC Available in IPC and CPC
  • H04L 5/10 with dynamo-electric generation of carriers; with mechanical filters or demodulators 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