CPC Subgroup
H04N 1/413 Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
Full Title
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof > Bandwidth or redundancy reduction (by scanning H04N1/17 ) > for the transmission or reproduction of two-tone pictures, e.g. black and white pictures > Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
4 direct subcodes
Child Classifications
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- H04N 1/415 in which the picture-elements are subdivided or grouped into fixed one-dimensional [1D] or two-dimensional [2D] blocks
- H04N 1/417 using predictive or differential encoding
- H04N 1/419 in which encoding of the length of a succession of picture-elements of the same value along a scanning line is the only encoding step