Browse Prior Art Database

Method for Automatic Power-On Hours Recording with a Monitor

IP.com Disclosure Number: IPCOM000105393D
Original Publication Date: 1993-Jul-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Barcomb, JG: AUTHOR [+5]

Abstract

Disclosed is a way to automatically record the power-on time of a monitor. This would allow a manufacturer to warranty the product without worry that the customer was using the product 24 hours a day. The warranty could read "This product is warranted for 5 years or 30,000 power-on hours, whichever comes first". It would also allow functions such as automatic brightness control, and age adjustment of the gain of various amplifiers.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 90% of the total text.

Method for Automatic Power-On Hours Recording with a Monitor

      Disclosed is a way to automatically record the power-on time of
a monitor.  This would allow a manufacturer to warranty the product
without worry that the customer was using the product 24 hours a day.
The warranty could read "This product is warranted for 5 years or
30,000 power-on hours, whichever comes first".  It would also allow
functions such as automatic brightness control, and age adjustment of
the gain of various amplifiers.

      This can be accomplished when using some monitors by using a
spare byte or two of the IIC bus storage available.  Other bytes of
the storage are used to store parameters that are needed to 1) Adjust
the width; 2) Control the height; 3) Locate the horizontal position;
4) Locate the vertical position.

      The logic adaptor used by some monitors already generates the
power-on time and stores it in non-volatile memory in the logic
package.  If additional instructions were placed in the logic's prom
(ROM), the logic could check periodically to see if a certain time
has passed (for example 1 hour), and if so, it would read out the
location assigned to store "power-on hours" count in the monitor and
add one count to it, then write back the new count to the monitor.
Storage in the monitor is very important because the logic card could
be replaced or switched between monitors, and would no longer
represent the correct monitor power-on time (Fig. 1).

      I...