DIFF Subgroup
H04N 1/028 for picture information pick-up
Introduced: January 1980
Title
Titles differ between systems:
IPC: for picture-information pick-up
CPC: for picture information pick-up
Full Title
Full titles differ between systems:
IPC:
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof > Details of scanning heads > for picture-information pick-up
CPC:
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof > Details of scanning heads > for picture information pick-up
CPC subdivides this area 3x more granularly than IPC with 3 additional codes.
3 codes are CPC-only extensions.
IPC defines codes here since 1995.
Child Classifications
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- H04N 1/029 Heads optically focused on only one picture element at a time since 1995 IPC+CPC Available in IPC and CPC
- H04N 1/03 with photodetectors arranged in a substantially linear array since 1995 +3 CPC IPC+CPC Available in IPC and CPC