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PCE
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DIFF Subgroup
H04N 1/047

Detection, control or error compensation of scanning velocity or position ( H04N1/17 take precedence)

Introduced: January 1995

Title

Titles differ between systems:

IPC: Detection, control or error compensation of scanning velocity or position

CPC: Detection, control or error compensation of scanning velocity or position ( H04N1/17 take precedence)

Full Title

Full titles differ between systems:

IPC:

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

CPC:

Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof > Scanning arrangements (H04N1/387 takes precedence) > Detection, control or error compensation of scanning velocity or position ( H04N1/17 take precedence)

CPC subdivides this area 3x more granularly than IPC with 2 additional codes.

2 codes are CPC-only extensions.

IPC defines codes here since 1995.

Child Classifications

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  • H04N 1/0473 CPC only CPC only
  • H04N 1/0476 CPC only CPC only
  • H04N 1/053 in main scanning direction, e.g. synchronisation of line start or picture elements in a line since 1995 IPC+CPC Available in IPC and CPC