VEHICLE KEYFOB WITH ACCELEROMETER TO EXTEND BATTERY LIFE

摘要

A keyfob is disclosed for use with a vehicle. The keyfob includes a microcontroller, a wake receiver, an antenna coupled to the wake receiver, and an accelerometer. The accelerometer is used to detect motion of the keyfob. The microcontroller disables the wake receiver based on signals from the accelerometer (e.g., when the keyfob is determined to be stationary and not close to the vehicle).

主权项

1. A keyfob for use with a vehicle, comprising:
a microcontroller; a wake receiver; an antenna coupled to the wake receiver; and an accelerometer to detect motion of the keyfob; wherein the microcontroller disables the wake receiver based on signals from the accelerometer.