H03M 1/66 Digital/analogue converters ( H03M1/10 take precedence)
Introduced: January 1985
Title
Titles differ between systems:
IPC: Digital/analogue converters
CPC: Digital/analogue converters ( H03M1/10 take precedence)
Full Title
Full titles differ between systems:
Analogue/digital conversion; Digital/analogue conversion > Digital/analogue converters
Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M3/00) > Digital/analogue converters ( H03M1/10 take precedence)
Of 12 combined children, 6 exist in both systems.
6 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1985.
Child Classifications
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- H03M 1/68 with conversions of different sensitivity, i.e. one conversion relating to the more significant digital bits and another conversion to the less significant bits since 1985 +2 CPC IPC+CPC Available in IPC and CPC
- H03M 1/70 Automatic control for modifying converter range since 1985 IPC+CPC Available in IPC and CPC
- H03M 1/72 Sequential conversion in series-connected stages (H03M1/68 takes precedence) since 1985 IPC+CPC Available in IPC and CPC
- H03M 1/82 with intermediate conversion to time interval since 1985 +1 CPC IPC+CPC Available in IPC and CPC
- H03M 1/86 with intermediate conversion to frequency of pulses since 1985 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class H03,2013–2023, worldwide · Source: EPO PATSTAT
- QUALCOMM US 5,625
- SAMSUNG ELECTRONICS COMPANY KR 5,496
- MURATA MANUFACTURING COMPANY JP 5,478
- HUAWEI TECHNOLOGIES COMPANY CN 3,383
- INTEL CORPORATION US 3,091
- TEXAS INSTRUMENTS US 3,070
- MURATA MANUFACTURING COMPANY 2,722
- SKYWORKS SOLUTIONS US 2,290
- SEIKO EPSON CORPORATION 2,177
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,158
Top Applicants (CPC)
Class H03,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 7,293
- QUALCOMM US 7,085
- MURATA MANUFACTURING COMPANY JP 5,982
- HUAWEI TECHNOLOGIES COMPANY CN 4,641
- INTEL CORPORATION US 3,863
- TEXAS INSTRUMENTS US 3,409
- MURATA MANUFACTURING COMPANY 2,874
- SK HYNIX KR 2,644
- SKYWORKS SOLUTIONS US 2,545
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,437