Motorola Corporation

Thomas J Chase

Steven D Bromley

Scott T Christians

Anna M Worthy

Stephane D Chapeau

A communication system and method for keyless-entry alarms includes a vehicle-mounted alarm transducer (215) controlled by a vehicle-mounted control system (250) that includes a receiver (207). The system also includes a hand-held R.K.E. transmitter device (200) for transmitting a radio-frequency message. The vehicle-mounted alarm transducer (215) is deactivated when receiving the transmitted radio-frequency message. If the vehicle-mounted alarm transducer (215) was active when it was deactivated, and a deactivate-alarm command code is not received in the radio-frequency message, then the vehicle-mounted alarm transducer (215) is reactivated after the transmitted radio-frequency message is completely received and decoded.

Communication system and method for keyless-entry alarms

A method of accumulating and maintaining the accumulated data comprises steps of maintaining an intermediate count in a first memory device (12), reading a plurality of count values from a second memory device (14), determining a greatest count value of a subset of the plurality of count values which satisfy at least one criterion, and determining an updated count based upon the intermediate count and the greatest count value. The at least one criterion includes a criterion that the greatest count value differs from a second greatest count value of the subset of the plurality of count values by at most a predetermined difference greater than one. A system and a device to perform the method are detailed.

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Segun, TX, United States of America

Thomas J Chase