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PCE
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DIFF Subgroup
H03M 5/06

Code representation, e.g. transition, for a given bit cell depending only on the information in that bit cell

Introduced: January 1985

Full Title

Conversion of the form of the representation of individual digits > Conversion to or from representation by pulses > the pulses having two levels > Code representation, e.g. transition, for a given bit cell depending only on the information in that bit cell

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 1985.

Child Classifications

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  • H03M 5/08 Code representation by pulse width since 1985 IPC+CPC Available in IPC and CPC
  • H03M 5/10 Code representation by pulse frequency since 1985 IPC+CPC Available in IPC and CPC
  • H03M 5/12 Biphase level code, e.g. split phase code, Manchester code; Biphase space or mark code, e.g. double frequency code since 1985 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class H03,2013–2023, worldwide · Source: EPO PATSTAT

  1. QUALCOMM US 5,625
  2. SAMSUNG ELECTRONICS COMPANY KR 5,496
  3. MURATA MANUFACTURING COMPANY JP 5,478
  4. HUAWEI TECHNOLOGIES COMPANY CN 3,383
  5. INTEL CORPORATION US 3,091
  6. TEXAS INSTRUMENTS US 3,070
  7. MURATA MANUFACTURING COMPANY 2,722
  8. SKYWORKS SOLUTIONS US 2,290
  9. SEIKO EPSON CORPORATION 2,177
  10. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,158

Top Applicants (CPC)

Class H03,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 7,293
  2. QUALCOMM US 7,085
  3. MURATA MANUFACTURING COMPANY JP 5,982
  4. HUAWEI TECHNOLOGIES COMPANY CN 4,641
  5. INTEL CORPORATION US 3,863
  6. TEXAS INSTRUMENTS US 3,409
  7. MURATA MANUFACTURING COMPANY 2,874
  8. SK HYNIX KR 2,644
  9. SKYWORKS SOLUTIONS US 2,545
  10. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,437