Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
H03M7/4025—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code constant length to or from Morse code conversion