229283 ⎘
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof; Bandwidth or redundancy reduction for the transmission or storage 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 in which a baseband signal showing more than two values or a continuously varying baseband signal is transmitted or recorded