CPC Subgroup Additional Only
H04B 2203/5404 Methods of transmitting or receiving signals via power distribution lines
Full Title
Indexing scheme relating to line transmission systems > Aspects of powerline communications not already covered by H04B3/54 and its subgroups > Methods of transmitting or receiving signals via power distribution lines
5 direct subcodes
Child Classifications
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- H04B 2203/5408 using protocols
- H04B 2203/5412 by modofying wave form of the power source
- H04B 2203/5416 by adding signals to the wave form of the power source
- H04B 2203/542 using zero crossing information
- H04B 2203/5425 improving S/N by matching impedance, noise reduction, gain control
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