Browse Prior Art Database

TOUCH SCREEN ERROR DETECTION AND RECOVERY SYSTEM

IP.com Disclosure Number: IPCOM000026339D
Original Publication Date: 1991-Jun-30
Included in the Prior Art Database: 2004-Apr-05

Publishing Venue

Xerox Disclosure Journal

Abstract

In an electroreprographic system having a touch screen user interface, it is generally known to utilize a dual microprocessor system to control the user interface. For example, a first microprocessor may control the scanning of the user interface, while a second microprocessor may handle the remaining user interface tasks, such as sensing the user input. In such a system, the first and second microprocessors are generally able to communicate via a universal asynchronous receivedtransmitter (UART) or other such interface. In one embodiment of the present invention, there is also a reset line from the first microprocessor to the second microprocessor, thereby enabling the first microprocessor to reset the second microprocessor.