Abstract: An example base station assembly includes a transmitter configured to communicate a challenge signal and at least one timing signal to a plurality of fobs. The base station initiates a vehicle operation in response to at least one return signal. The return signal is communicated to the base station from at least one of the fobs in response to the timing signal.

Abstract: A passive entry and start system includes a controller that calculates the cryptology required for each remote identification device during idle transmission time to reduce overall system actuation time.

Abstract: A receiver receives transmission containing information from different vehicle systems and determines an origin of that transmission according to the length of the transmission.

Abstract: An example base station assembly includes a transmitter configured to communicate a challenge signal and at least one timing signal to a plurality of fobs. The base station initiates a vehicle operation in response to at least one return signal. The return signal is communicated to the base station from at least one of the fobs in response to the timing signal.

Abstract: A receiver for receiving radio frequency signals from a remote keyless entry system and another system includes a low noise amplifier for amplifying and increasing the range and sensitivity of the receiver, such that the receiver may receive signals at increased distances. A gain of the low noise amplifier is selectively controlled to cycle from a first gain level that provides for increased sensitivity and a second gain level that provides a lower sensitivity and a greater dynamic range or larger signal capacity.

Abstract: A method of operating a remote signal communication system to reduce entry latency includes the steps of remotely starting a vehicle, and periodically communicating a signal to a plurality of locations of the vehicle subsequent to starting the vehicle.

Abstract: A receiver receives transmission containing information from different vehicle systems and determines an origin of that transmission according to the length of the transmission.

Abstract: A passive entry and start system includes a controller that calculates the cryptology required for each remote identification device during idle transmission time to reduce overall system actuation time.

Abstract: A passive start and entry system includes a controller that determines the desired encryption for a last authenticated identification device during the period in which responses are received from any proximate identification devices. This process allows for the transmission of encrypted data to the last authenticated device without delay upon the expiration of the wait period.

Abstract: A passive entry and start system transmits a neutral signal over all the antennas except for that antenna that is proximate an area in which transmission to an identification device is desired. Accordingly, the area of a vehicle and those physical features that are proximate and associated with the area is isolated to prevent undesired operation of other vehicle mechanisms.

Abstract: An identification device is user configurable to communicate according to different communication protocols. Once the identification device has been set to a desired communication protocol where all it will immediately transmit an identification code to the corresponding vehicle controller such that the vehicle controller will learn the identification code and be able to recognize subsequent transmissions and authenticate the identification device.

Abstract: A method of diagnosing an electronic connection open circuit includes measuring a received signal strength and determining the status of the electronic connection in response to the received signal strength. An open circuit fault signal is communicated where the received signal strength is below a desired signal strength. A user corrects the open circuit fault in response to the detection of an open circuit.

Abstract: A method of controlling the signal sensitivity of a receiver module of a remote signal communication system includes initializing a PASE function and actuating a switch from a first position to a second position. The second position represents an open switch wherein either an external antenna or a LNA circuit or both are shut off. The switch is returned to a first position in response to completion of a PASE command.

Abstract: A receiver for receiving radio frequency signals from a remote keyless entry system and another system includes a low noise amplifier for amplifying and increasing the range and sensitivity of the receiver, such that the receiver may receive signals at increased distances. A gain of the low noise amplifier is selectively controlled to cycle from a first gain level that provides for increased sensitivity and a second gain level that provides a lower sensitivity and a greater dynamic range or larger signal capacity.

Abstract: A control system has a sensor for monitoring a vehicle gate condition. A control unit receives an output from the sensor and controls a motorized drive. The motorized drive changes the vehicle gage condition from an open condition to a secured condition. The unit control has an automated state that causes operation of the motorized drive and a disabled state disabling operation of the motorized drive. The control unit is programmed to change from the disabled state to the automated state upon a predetermined condition relating to the output from the sensor.