CPC Subgroup
H04N 3/10 by means not exclusively optical-mechanical (H04N3/36 takes precedence)
Full Title
Scanning details of television systems; Combination thereof with generation of supply voltages > by means not exclusively optical-mechanical (H04N3/36 takes precedence)
5 direct subcodes
Child Classifications
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- H04N 3/12 by switched stationary formation of lamps, photocells or light relays
- H04N 3/14 by means of electrically scanned solid-state devices (for picture generation H04N25/00)
- H04N 3/16 by deflecting electron beam in cathode-ray tube
- H04N 3/28 producing multiple scanning, i.e. using more than one spot at the same time
- H04N 3/30 otherwise than with constant velocity or otherwise than in pattern formed by unidirectional, straight, substantially horizontal or vertical lines
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