Communications: electrical – Land vehicle alarms or indicators – Of burglary or unauthorized use
Patent
1996-05-20
1999-02-09
Tong, Nina
Communications: electrical
Land vehicle alarms or indicators
Of burglary or unauthorized use
3404255, 340568, 34082524, 3408253, 34082534, 307 102, 455346, B60R 2510
Patent
active
058700188
ABSTRACT:
An anti-theft device for an automobile audio system automatically prevents the audio system from functioning whenever the audio system is removed from its authorized vehicle and placed into another vehicle. This anti-theft device includes a microprocessor which operates with a bus interface for communicating a vehicle identifier from a vehicle multiplex bus to the central microprocessor. The device also has non-volatile memory within which the first received or authorized vehicle identifier is stored. The subsequently received identifiers are stored on RAM. A battery detector connected to the microprocessor alerts the microprocessor whenever the audio system has been disconnected from the battery source. When the audio system is reconnected to the battery source, the microprocessor automatically compares the vehicle identifier stored within the non-volatile memory to the subsequent vehicle identifier received in the RAM over the multiplex bus, and shuts down the audio system whenever these two vehicle identifiers do not match.
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Muccioli James P.
Mukaiyama Yasuhiko
Person Andrew P.
Takeda Kazuma
Chrysler Corporation
Fuller III Roland A.
Tong Nina
LandOfFree
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