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Character Disambiguation for Keypads using Fingerprint indentification

IP.com Disclosure Number: IPCOM000015985D
Original Publication Date: 2002-Aug-24
Included in the Prior Art Database: 2003-Jun-21

Publishing Venue

IBM

Abstract

Goal This disclosure describes the design of a biometrics enhanced keypad and related supporting software for the text entry tasks on PvC devices. This keypad uses the implicit information contained in a user's different fingers to map multiple characters into one physical button. Our keypad maps multiple characters into one physical button and uses the implicit information contained in the user's different fingers to identify the user-wanted character from these characters. Our invention has the following novelities compared with traditional methods 1. A method to disambiguate arbitrary inputs of multiple characters mapped to a physical button within one keystroke by identifying the action finger using the implicit information contained in different fingers. 2. A novel design of keypad with fingerprint scanner mounted on the key-face of each button. This keypad is also backward compatible with traditional keypad. Description :