Randall J Snoeyink

US Patent:

20050195115, Sep 8, 2005

Filed:

Feb 15, 2005

Appl. No.:

11/058647

Inventors:

Korkut Yegin - Grand Blanc MI, US
Daniel Morris - Ovid MI, US
Randall Snoeyink - Clarkston MI, US
William Livengood - Grand Blanc MI, US

International Classification:

H01Q001/32

US Classification:

343713000

Abstract:

An antenna system for a vehicle including a front windshield glass and a rear windshield is disclosed. The antenna system comprises an antenna unit including a radiating element electromagnetically coupled to an excitation element. The radiating element is coupled to the front windshield glass, and the excitation element is positioned on a passenger compartment interior surface of the front windshield glass. The antenna system also comprises a high-gain antenna unit including first radiating elements, a second radiating element, a 90-degree phase shift circuit, and a low noise amplifier that is coupled to the phase shift circuit. The first radiating elements receive signals through the rear windshield glass. The antenna unit and the high-gain antenna unit may function in a diversity antenna configuration.

US Patent:

20060222120, Oct 5, 2006

Filed:

Mar 10, 2006

Appl. No.:

11/373854

Inventors:

Korkut Yegin - Grand Blanc MI, US
Nazar Bally - Sterling Heights MI, US
Randall Snoeyink - Clarkston MI, US
William Livengood - Grand Blanc MI, US
Jon Gleeson - Lapeer MI, US
Randall Robson - Lapeer MI, US

International Classification:

H04L 1/02

US Classification:

375347000, 340447000

Abstract:

An automotive tire pressure monitor with diversity antenna system employs a RF transmitter within each wheel/tire assembly and a vehicle mounted receiver with multiple receiving antennas. A first, primary antenna is located adjacent one vehicle window and a secondary antenna is located adjacent another vehicle window opposite the primary antenna. Both antennas are coupled to a receiver via a switch. The receiver feeds a processor, which is encoded to select the optimal antenna/receiver configuration based upon absolute signal strength (signal to noise), signal quality (completeness of encoded data) or signal reception rate. The signal received from the optimized antenna/receiver configuration is processed and transmitted to the host vehicle for system intervention and or display to an operator.