Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04N
PICTORIAL COMMUNICATION, e.g. TELEVISION
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1/00
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
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H04N1/41
Bandwidth or redundancy reduction
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H04N1/411
for the transmission; or storage; or reproduction of two-tone pictures, e.g. black and white pictures
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H04N1/4115
involving the recognition of specific patterns, e.g. by symbol matching
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