Browse Prior Art Database

TIME AND DATE STAMP AND/OR ELAPSED TIME COUNTER ON GONE CELL AND/OR LOW CELL

IP.com Disclosure Number: IPCOM000006440D
Original Publication Date: 1992-May-01
Included in the Prior Art Database: 2002-Jan-03

Publishing Venue

Motorola

Related People

Authors:
George William McClurg

Abstract

It is commonplace to have pagers and other porta- ble products monitor the capacity of the power source; in the pager's case a dry cell battery is usually the power source. The typical pager will have a predetermined volt- age level at which point the user is warned when the battery voltage drops too low. Let this voltage level at this point be defined as "low cell?' When the pager is in the low cell state it is still capable of receiving pages; but as the battery capacity continues to decrease the battery voltage reaches a level where the pager can no longer support paging functions. This state can be defined as 'gone cell? The purpose of the low cell state is to warn the user that the battery voltage level is low, and to enable the user to change the battery with a minimal chance of missing pages. In the case of some pagers certain steps may be taken by the pager to conserve battery life, such as shorten alerts, once the low state has been reached.