IPC Subgroup
H04N 1/04 Scanning arrangements
Introduced: September 1968
Last revised: January 2006
Full Title
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof > Scanning arrangements
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- PICTORIAL COMMUNICATION, e.g. TELEVISION
Related Keywords
SCANNING in pictorial communication systems
9 direct subcodes
Child Classifications
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- H04N 1/047 Detection, control or error compensation of scanning velocity or position
- H04N 1/06 using cylindrical picture-bearing surfaces
- H04N 1/1 using flat picture-bearing surfaces
- H04N 1/113 using oscillating or rotating mirrors
- H04N 1/12 using the sheet-feed movement as the slow scanning component
- H04N 1/17 the scanning speed being dependent on content of picture
- H04N 1/19 using multi-element arrays
- H04N 1/203 Simultaneous scanning of two or more separate pictures
- H04N 1/207 Simultaneous scanning of the original picture and the reproduced picture with a common scanning device
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