H04B 2201/7097 Direct sequence modulation interference
Full Title
Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00 > Orthogonal indexing scheme relating to spread spectrum techniques in general > relating to direct sequence modulation > Direct sequence modulation interference
Filing statistics
CPC H04B 2201/7097 belongs to the parent subclass H04B, which recorded 474,755 patent applications worldwide between 2013 and 2023. Annual filings grew from 34,313 in 2013 to 39,995 in 2023 (+17%), peaking at 50,387 applications in 2020. The most active applicants in class H04 are HUAWEI TECHNOLOGIES COMPANY (101,476 applications), QUALCOMM (101,139 applications) and SAMSUNG ELECTRONICS COMPANY (96,655 applications).
Source: EPO PATSTAT, worldwide filings
10 direct subcodes
Child Classifications
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- H04B 2201/709709 Methods of preventing interference
- H04B 2201/709718 Determine interference
- H04B 2201/709727 GRAKE type RAKE receivers
- H04B 2201/709736 Hybrid interference mitigation schemes
- H04B 2201/709745 Iterative interference mitigation schemes
- H04B 2201/709754 Blind joint detection
- H04B 2201/709763 Joint detection using feedback
- H04B 2201/709772 Joint detection using feedforward
- H04B 2201/709781 Linear detectors for joint detection
- H04B 2201/70979 Fat finger issues in RAKE receivers
Top Applicants
Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT
- HUAWEI TECHNOLOGIES COMPANY CN 101,476
- QUALCOMM US 101,139
- SAMSUNG ELECTRONICS COMPANY KR 96,655
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
- LG ELECTRONICS KR 55,253
- HUAWEI TECHNOLOGIES COMPANY 54,181
- SONY CORPORATION JP 35,309
- ZTE CORPORATION CN 32,950
- INTEL CORPORATION US 27,533
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498