DIFF Subgroup
H04N 1/405 Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
Introduced: January 1995
Full Title
Full titles differ between systems:
IPC:
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof > Picture signal circuits > Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
CPC:
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof > Picture signal circuits (H04N1/387 takes precedence) > Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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