Less-Tap: A Fast and Easy-to-learn Text Input Technique for Phones

A new technique to enter text using a mobile phone keypad, Less-Tap, is described. The traditional touchtone phone keypad is ambiguous for text input because each button encodes 3 or 4 letters. As in Multitap, our method requires the user to press buttons repeatedly to get a required letter. However, in Less-Tap, letters are rearranged within each button according to their frequency. This way, the most common letters require only one key press. Unlike dictionary based methods, Less-Tap facilitates the entry of arbitrary words. Unlike LetterWise and T9® , Less-Tap allows entering text without having to visually verify the result, after some initial training. For English,

• Type: Conference
• Year: 2003
• Where: GRAPHICSINTERFACE
• Authors: Andriy Pavlovych, Wolfgang Stürzlinger
• Keywords: GRAPHICSINTERFACE 2003, GRAPHICSINTERFACE 2007, Mobile Phone Keypad, Phone Keypad, Touchtone Phone Keypad