CPC Subgroup
H03K 5/1252 Suppression or limitation of noise or interference (specially adapted for transmission systems H04B15/00, H04L25/08)
Full Title
Manipulating of pulses not covered by one of the other main groups of this subclass (circuits with regenerative action H03K3/00, H03K4/00; by the use of non-linear magnetic or dielectric devices H03K3/45) > Discriminating pulses (measuring characteristics of individual pulses G01R29/02; separation of synchronising signals in television systems H04N5/08) > Suppression or limitation of noise or interference (specially adapted for transmission systems H04B15/00, H04L25/08)
1 direct subcode
Child Classifications
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- H03K 5/1254 specially adapted for pulses generated by closure of switches, i.e. anti-bouncing devices (debouncing circuits for electronic time-pieces G04G5/00)
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