Patent US 4,092,729

Improved hyphenation apparatus is combined with word verification apparatus to automatically provide hyphenation points for input words from a keyboard or other input device. The spelling of each word input to the system is verified by the digital reference matrix section of the apparatus by calculating a vector magnitude and angle for the word which is compared to the contents of a storage dictionary of words. Each cell of storage in the storage dictionary, in addition to containing a unique angle representation of the input word, contains a byte of data representing the valid hyphenation points for the input word. When an input word is verified to be correctly spelled, the hyphenation byte is read out of dictionary and used by the hyphenation section to reassemble the word in hyphenated form. The hyphenated word is then displayed to the operator for appropriate action.