CPC Subgroup
H03M 1/12 Analogue/digital converters ( H03M1/10 take precedence)
Full Title
Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M3/00) > Analogue/digital converters ( H03M1/10 take precedence)
12 direct subcodes
Child Classifications
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- H03M 1/14 Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit
- H03M 1/18 Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
- H03M 1/20 Increasing resolution using an n bit system to obtain n + m bits
- H03M 1/22 pattern-reading type
- H03M 1/34 Analogue value compared with reference values (H03M1/48 takes precedence)
- H03M 1/48 Servo-type converters
- H03M 1/50 with intermediate conversion to time interval (H03M1/64 takes precedence)
- H03M 1/60 with intermediate conversion to frequency of pulses
- H03M 1/64 with intermediate conversion to phase of sinusoidal signals
Top Applicants
Top 10 applicants by patent filingsfor 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