H03M 1/38 sequentially only, e.g. successive approximation type (converting more than one bit per step H03M1/14)
Introduced: January 1985
Title
Titles differ between systems:
IPC: sequentially only, e.g. successive approximation type
CPC: sequentially only, e.g. successive approximation type (converting more than one bit per step H03M1/14)
Full Title
Full titles differ between systems:
Analogue/digital conversion; Digital/analogue conversion > Analogue/digital converters > Analogue value compared with reference values > sequentially only, e.g. successive approximation type
Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M3/00) > Analogue/digital converters ( H03M1/10 take precedence) > Analogue value compared with reference values (H03M1/48 takes precedence) > sequentially only, e.g. successive approximation type (converting more than one bit per step H03M1/14)
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
IPC defines codes here since 1985.
Child Classifications
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- H03M 1/42 Sequential comparisons in series-connected stages with no change in value of analogue signal since 1985 IPC+CPC Available in IPC and CPC
- H03M 1/44 Sequential comparisons in series-connected stages with change in value of analogue signal since 1985 +3 CPC IPC+CPC Available in IPC and CPC
- H03M 1/46 with digital/analogue converter for supplying reference values to converter since 1985 +3 CPC 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