Steven S Langston

US Patent:

7590399, Sep 15, 2009

Filed:

Aug 11, 2005

Appl. No.:

11/201883

Inventors:

Raed S. Shatara - Carmel IN, US
Mathew A. Boytim - Kokomo IN, US
Steven S. Langston - Kokomo IN, US

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

H04B 1/06
H04B 7/00

US Classification:

455272, 4552771, 4552772

Abstract:

A technique for reducing multipath distortion in an FM receiver, with a plurality of switchable antennas, provides a fast distortion detector that monitors a received signal for significant distortion events of less than about 15 microseconds in duration. In response to a multipath event, the output of the fast distortion detector initiates a search for a lower distortion (better quality) antenna. To prevent frequent antenna searches from causing an audible disturbance, a threshold is introduced to desensitize the fast distortion detector. Threshold decay is a function of an overall received RF signal level. A slow distortion detector is also provided that measures distortions of the received signal relating to signal quality.

US Patent:

8107915, Jan 31, 2012

Filed:

Apr 28, 2008

Appl. No.:

12/150414

Inventors:

Nazar F. Bally - Sterling Heights MI, US
Daniel G. Morris - Ovid MI, US
Raed S. Shatara - Carmel IN, US
Steven S. Langston - Kokomo IN, US

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

H04B 1/06

US Classification:

4552771, 4552772

Abstract:

A receiver system and method for receiving signals are provided, wherein the system includes a plurality of antenna elements configured to receive a transmitted signal. A receiver device is in communication with the plurality of antenna elements, wherein the receiver device is configured to emit an output based upon the received signal, and communicate a control signal that corresponds to a determined signal quality of the received signal. A switch device is adapted to switch among the plurality of antenna elements to electrically connect a selected antenna element of the plurality of antenna elements to the receiver device. A controller is in communication with the receiver device, such that the controller receives the control signal, wherein the controller commands the switch device to directly switch to any of the antenna elements to electrically connect one of the plurality of antenna elements to the receiver device based upon the control signal.

US Patent:

8170161, May 1, 2012

Filed:

Jan 23, 2009

Appl. No.:

12/358353

Inventors:

Daniel G. Morris - Ovid MI, US
Nazar F. Bally - Sterling Heights MI, US
Raed S. Shatara - Carmel IN, US
Steven S. Langston - Kokomo IN, US

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

H04B 7/08
H04B 17/02

US Classification:

375347, 455135

Abstract:

A receiver system and method are provided, wherein the system includes a plurality of antenna elements, and a receiver device configured to emit an output based upon the received signal. The receiver device communicates a control signal that corresponds to a determined signal quality of the received signal. The receiver system also includes a switch system adapted to switch among the plurality of antenna elements in a plurality of modes, wherein the switch system includes a first switch device and a second switch device. Further, the system includes a controller that receives the control signal, wherein the controller commands the switch system to operate in a first mode utilizing the first switch device when the determined signal quality is above a threshold value, and the controller commands the switch system to operate in a second mode utilizing the second switch device when the determined signal quality is below a threshold value.