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 > 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

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC COMMUNICATION TECHNIQUE

Subclass:

PICTORIAL COMMUNICATION, e.g. TELEVISION

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