Patent ID: 7683757
Filing Date: 2010-03-23
Classification: B60R,G07C

Abstract:
1. A system for remotely controlling a function, the system comprising: a transmitter for transmitting a wireless control signal having a first signal portion and a second signal portion, the first signal portion being indicative of a function request; and a receiver control circuit having a first antenna, a second antenna, and a controller for selectively enabling and disabling the first and second antennas and decoding the wireless control signal; wherein the first antenna receives the first signal portion; and wherein the controller enables the second antenna when the first signal portion is indicative of a function that is to be performed when the transmitter is within a first predetermined distance from the receiver, wherein determination of whether the transmitter is within the first predetermined distance from the receiver is not based on strength of the wireless control signal or a global positioning system, and wherein the function is performed when the second signal portion is received by the second antenna and successfully decoded.