Browse Prior Art Database

Utilization of a Motion Detection Device to Prolong CRT Life

IP.com Disclosure Number: IPCOM000102297D
Original Publication Date: 1990-Nov-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

Crutchfield, KR: AUTHOR

Abstract

Disclosed is a technique for utilizing a Motion Detection Device to prolong the functional life of a cathode ray tube (CRT). The exemplary application is for use on automatic teller machines (ATMs); however, the same technique can be applied to any application where a CRT is used. (Image Omitted)

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Utilization of a Motion Detection Device to Prolong CRT Life

       Disclosed is a technique for utilizing a Motion Detection
Device to prolong the functional life of a cathode ray tube (CRT).
The exemplary application is for use on automatic teller machines
(ATMs); however, the same technique can be applied to any application
where a CRT is used.

                            (Image Omitted)

      Typical applications for CRTs today, such as ATMs, display an
owner's logo or some sort of customer prompt message for every minute
of every day the machine is in operation.  Over a period of time,
this logo or prompt becomes literally burned into the phosphorous
surface of the CRT display.  So much so that even when the display
information is changed the customer can still see this message on the
display.

      It is estimated that a typical ATM is in use by a customer less
than 20% of the time it is in operation.  This not only is a waste
of energy, but it results in the deterioration of the display at an
unnecessary rate.

      Integration of a Motion Detection Device to determine when a
customer is present at a machine would allow the CRT to be
electronically "Turned Off" when it is not in use. Two exemplary
methods of "Turning Off" the display are simply to use the signal
from the Motion Detection Device to 1) reduce the CRT gun intensity
and/or and 2) deflect the CRT gun beam off the immediate display
surface, both of which wo...