Method and apparatus for identifying words entered on DTMF pushbuttons

摘要: The identity of a word entered on DTMF (Dual Tone Multi-Frequency) pushbuttons is determined by identifying letters according to their frequency in groups 2s and 3s up n-letter groups. Initially, sender will type pushbutton pad. Since each button represents three (3) possible letters, or four the case 7 (PQRS) 9 (WXYZ), system look meanings for from an internal memory which includes dictionary. If does not exist dictionary, then search against Forward Reverse Dictionary guess at fragments beginning ending word. Then it letter its relative known as Trigrams, Digrams. Trigams are preferably arranged five (5) files identify first, second, third final well any non-specified middle location. can be extended grouping size n where two more. Once identified, stored part message transmitted ASCII digital information over packet data network remote receiver voice synthesis converts into audio. Other delivery methods include alphanumeric pagers, FAX, E-Mail, telex, computer printed output, telegrams cables.