CPC Subgroup
H04N 1/38 Circuits or arrangements for blanking or otherwise eliminating unwanted parts of pictures (H04N1/387 takes precedence)
Full Title
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof > Circuits or arrangements for blanking or otherwise eliminating unwanted parts of pictures (H04N1/387 takes precedence)