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BATTERY MEMORY PROGRAMMING OVER THE AIR IN PORTABLE ELECTRONIC DEVICES

IP.com Disclosure Number: IPCOM000009040D
Original Publication Date: 1999-Jan-01
Included in the Prior Art Database: 2002-Aug-02
Document File: 1 page(s) / 72K

Publishing Venue

Motorola

Related People

Jeff Ostroff: AUTHOR [+2]

Abstract

Today's batteries have memory devices that con- tain information used by the radio and charger. The radio uses its information to, among other things, properly determine the battery fuel gauge status. The charger uses its information to properly set parameters in its fixed charger software to charge the battery.

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MOTOROLA Technical Developments

BATTERY MEMORY PROGRAMMING OVER THE AIR IN PORTABLE ELECTRONIC DEVICES

by Jeff Ostroff and Joseph Patiiio

  Today's batteries have memory devices that con- tain information used by the radio and charger. The radio uses its information to, among other things, properly determine the battery fuel gauge status. The charger uses its information to properly set parameters in its fixed charger software to charge the battery.

  Next generation batteries will have memory that will continue to contain the existing radio specific information. However, instead of containing charg- er parameters for the charger's software to use, it will instead contain the actual charging software itself. This is commonly referred to as "instruction set" memory. In this system, the charger will be a generic receptor for each battery's software con- tained in the battery's memory.

  Two problems exist with this approach, howev- er. First, if for any reason the charging specific information in the battery's memory needs to be updated to address either a battery or a charger issue this is presently only possible if the battery is brought into a service shop and reprogrammed.

  Second, in the event that the battery is intended to he used as a platform battery that can be used by multiple radio family types, the radio specific infor- mation in the battery will need to be modified to allow for proper radio operation. This is true because different radios have different current loads and therefore the specific voltage information needs to be modified accordingly. Again, this is not presently possible unless you ha...