Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
H04N 1/047

Detection, control or error compensation of scanning velocity or position

Introduced: January 1995

Last revised: January 2006

Full Title

Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof > Scanning arrangements > Detection, control or error compensation of scanning velocity or position

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC COMMUNICATION TECHNIQUE
Subclass:
PICTORIAL COMMUNICATION, e.g. TELEVISION

Filing statistics

IPC H04N 1/047 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

1 direct subcode

Child Classifications

Navigate with arrow keys, Enter to open

  • H04N 1/053 in main scanning direction, e.g. synchronisation of line start or picture elements in a line

Top Applicants

Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT

  1. QUALCOMM US 97,396
  2. HUAWEI TECHNOLOGIES COMPANY CN 96,502
  3. SAMSUNG ELECTRONICS COMPANY KR 86,981
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
  5. HUAWEI TECHNOLOGIES COMPANY 55,349
  6. LG ELECTRONICS KR 53,649
  7. CANON 33,341
  8. SONY CORPORATION JP 32,761
  9. ZTE CORPORATION CN 32,274
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327