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DIFF Subgroup
H03M 1/50

with intermediate conversion to time interval (H03M1/64 takes precedence)

Introduced: January 1985

Title

Titles differ between systems:

IPC: with intermediate conversion to time interval

CPC: with intermediate conversion to time interval (H03M1/64 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Analogue/digital conversion; Digital/analogue conversion > Analogue/digital converters > with intermediate conversion to time interval

CPC:

Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M3/00) > Analogue/digital converters ( H03M1/10 take precedence) > with intermediate conversion to time interval (H03M1/64 takes precedence)

Of 6 combined children, 4 exist in both systems.

2 codes are CPC-only extensions.

IPC defines codes here since 1985.

Child Classifications

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  • H03M 1/502 CPC only CPC only
  • H03M 1/52 Input signal integrated with linear return to datum since 1985 IPC+CPC Available in IPC and CPC
  • H03M 1/54 Input signal sampled and held with linear return to datum since 1985 IPC+CPC Available in IPC and CPC
  • H03M 1/56 Input signal compared with linear ramp since 1985 IPC+CPC Available in IPC and CPC
  • H03M 1/58 Non-linear conversion 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