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SECURE MULTI UNIT CHARGER

IP.com Disclosure Number: IPCOM000006998D
Original Publication Date: 1993-Oct-01
Included in the Prior Art Database: 2002-Feb-15
Document File: 1 page(s) / 77K

Publishing Venue

Motorola

Related People

Joseph Patino: AUTHOR [+4]

Abstract

In multi-unit charger applications, multiple users insert their battery/radio in the charger over night and pick them up the next day for normal use. This gives rise to various problems. Distinguishing between the different user battery/radios is difficult because they usually look identical. This causes sit- uations where the user picks up the incorrect radio/battery by mistake or otherwise. To allow for proper battery/radio identification and to reduce the possibility of incorrect removal, the charger needs to be able to do two unique functions. First, the charger needs to identify to the user which battery/ radio belongs to him by identifying the pocket that he inserted his battery/radio in. And second to reduce the occurrences ofinadvertent removals or unwanted removals, the charger needs to be able to lock the battery in the pocket to prevent removal or to give an audible alert siren to deter removal. Since phys- ically locking the battery in place is cumbersome, due to the differences in battery sizes and the desire to also lock various radio/battery combinations, the alert tone alternative is preferred. The use of a user ID is necessary for electronic identification. This can be done via a card reader or a keypad.

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0 M MO-LA

INC. Technical Developments Volume 20 October 1993

SECURE MULTI UNIT CHARGER

by Joseph Patiiio, Juan Alfonso, Bill Williams and Daniel Nigro

  In multi-unit charger applications, multiple users insert their battery/radio in the charger over night and pick them up the next day for normal use. This gives rise to various problems. Distinguishing between the different user battery/radios is difficult because they usually look identical. This causes sit- uations where the user picks up the incorrect radio/battery by mistake or otherwise. To allow for proper battery/radio identification and to reduce the possibility of incorrect removal, the charger needs to be able to do two unique functions. First, the charger needs to identify to the user which battery/ radio belongs to him by identifying the pocket that he inserted his battery/radio in. And second to reduce the occurrences ofinadvertent removals or unwanted removals, the charger needs to be able to lock the battery in the pocket to prevent removal or to give an audible alert siren to deter removal. Since phys- ically locking the battery in place is cumbersome, due to the differences in battery sizes and the desire to also lock various radio/battery combinations, the alert tone alternative is preferred. The use of a user ID is necessary for electronic identification. This can be done via a card reader or a keypad.

  Furthermore, certain charger pockets allow for the insertion of the battery in backwards. The charger will not charge the battery in this configuration and although the charger's LED clearly indicates that charging is not being done, it has become apparent in the field that additional identification to the user is necessary to inform them of the incorre...