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

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