IPC Main Group
H04N 1/00 Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- PICTORIAL COMMUNICATION, e.g. TELEVISION
Filing statistics
IPC H04N 1/00 belongs to the parent subclass H04N, which recorded 1,015,361 patent applications worldwide between 2013 and 2023. Annual filings grew from 76,403 in 2013 to 85,701 in 2023 (+12%), peaking at 118,798 applications in 2020. The most active applicants in class H04 are QUALCOMM (97,396 applications), HUAWEI TECHNOLOGIES COMPANY (96,502 applications) and SAMSUNG ELECTRONICS COMPANY (86,981 applications).
Source: EPO PATSTAT, worldwide filings
Related Keywords
copying DOCUMENTS by facsimile reproductionFACSIMILE transmissionfacsimile transmission of PICTURESfacsimile REPRODUCTION of pictures by using electric signals
12 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H04N 1/024 Details of scanning heads
- H04N 1/04 Scanning arrangements
- H04N 1/21 Intermediate information storage
- H04N 1/23 Reproducing arrangements
- H04N 1/32 Circuits or arrangements for control or supervision between transmitter and receiver
- H04N 1/38 Circuits or arrangements for blanking or otherwise eliminating unwanted parts of pictures
- H04N 1/387 Composing, repositioning or otherwise modifying originals
- H04N 1/4 Picture signal circuits
- H04N 1/41 Bandwidth or redundancy reduction
- H04N 1/42 Systems for two-way working
- H04N 1/44 Secrecy systems
- H04N 1/46 Colour picture communication systems
Top Applicants
Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT
- QUALCOMM US 97,396
- HUAWEI TECHNOLOGIES COMPANY CN 96,502
- SAMSUNG ELECTRONICS COMPANY KR 86,981
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
- HUAWEI TECHNOLOGIES COMPANY 55,349
- LG ELECTRONICS KR 53,649
- CANON 33,341
- SONY CORPORATION JP 32,761
- ZTE CORPORATION CN 32,274
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327