Patent Number: 7,825,779

Title: Remote entry chirp sound reduction method and system

Abstract: A vehicle remote entry locking or unlocking chirp sound reduction system including a remote transmitter operable to transmit a signal, a receiver operable to receive the signal from the remote transmitter, a controller operably connected to the receiver and being operable in response to the signal from the remote transmitter, and a horn operably connected to the controller. The controller may be configured to cause the horn to generate an audible signal having a predetermined pulse duration which depends on at least one characteristic of a vehicle prior to or during actuation of the remote transmitter. Also provided is a method of reducing the sound of an audible signal generated by actuation of a vehicle remote entry system.

Inventors: Van Wiemeersch; John (Novi, MI), Demetriou; John (Dexter, MI), Boran; Lisa (Northville, MI)

Assignee: Ford Global Technologies, LLC

International Classification: B60R 25/10 (20060101)

Expiration Date: 2019-11-02 0:00:00