CPC Subclass Not Allocatable
H04H BROADCAST COMMUNICATION (multiplex communication H04J; pictorial communication aspects of broadcast systems H04N)
Description
H04H covers technologies for transmitting information simultaneously to multiple recipients through electromagnetic waves or similar broadcast media. This subclass encompasses radio broadcasting, television transmission, digital broadcast systems, and related infrastructure for one-way mass communication. Included are modulation techniques, broadcast standards, receiver designs, and transmission protocols specific to broadcast applications. Related but distinct transmission methods such as point-to-point telecommunications (H04B) and closed circuit systems are classified elsewhere.
4 direct subcodes
Child Classifications
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- H04H 20/00 Arrangements for broadcast or for distribution combined with broadcast
- H04H 2201/00 Aspects of broadcast communication
- H04H 40/00 Arrangements specially adapted for receiving broadcast information
- H04H 60/00 Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
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