Method and system for encrypting input from a touch screen

US5768386A · kind A · utility

Assignee

• Transaction Technology, Inc. · US

Inventors

• Randal H. Yokomoto · Torrance, US
• Warren Tan · Thousand Oaks, US
• Yosif Smushkovich · Santa Monica, US
• Xuan S. Bui · Culver City, US
• Michael Merman · Santa Monica, US
• Inas M. Dessouky · Los Angeles, US
• Cuong D. Do · Calabasas, US
• Stephen M. Gryte · Los Angeles, US
• Phoebe Rin-Rin Hsu · San Fernando, US
• Robert R. Propp · Newport Beach, US
• Michael L. Sears · Lewisville, US

Key dates

• Filing date: May 31, 1996
• Grant date: Jun 16, 1998
• Expiry date: May 31, 2016

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F2211/007
• WIPO field: Control
• WIPO sector: Instruments

Abstract

An improved touch screen encryption device and method is disclosed. The user selects information from prompts displayed on a touch screen. The improved device determines the input information based upon the location of the touch. The device encrypts the information--for example, the user's personal identification number--and sends the encrypted information to a remote processor. The device and method may be used by a financial institution (such as a bank), a postal services institution or wherever sensitive information is input through a touch screen.