Thomas Scott Schaffer

US Patent:

7586377, Sep 8, 2009

Filed:

Aug 11, 2006

Appl. No.:

11/502749

Inventors:

Phillip Chapin - Vienna, AT
John R. Costello - Rochester Hills MI, US
Tejas Desai - Troy MI, US
Brian Farrell - Troy MI, US
Douglas J. King - Lapeer MI, US
Thomas Schaffer - Shelby Township MI, US

Assignee:

Continental Automotive Systems US, Inc. - Auburn Hills MI

International Classification:

H03L 7/00

US Classification:

331 2, 331176, 331 46, 331 47, 331 49

Abstract:

A real time clock assembly includes paired crystal oscillators that experience changes in frequency responsive to temperature. The differences in frequency changes between the paired crystal oscillators are utilized to determine a temperature utilized to compensate for those shifts in frequency. The predictability of frequency responsive to temperature variations by the paired crystal oscillators is utilized for the determination of temperature.

US Patent:

7696717, Apr 13, 2010

Filed:

Aug 8, 2006

Appl. No.:

11/500640

Inventors:

John R. Costello - Rochester Hills MI, US
Scott J. Lucy - Lake Orion MI, US
Thomas S. Schaffer - Shelby Township MI, US

Assignee:

Continental Automotive Systems US, Inc. - Auburn Hills

International Classification:

H02J 7/14

US Classification:

320104, 320133, 320134

Abstract:

A method of monitoring a battery energy management system includes discharging a detector circuit to a minimum battery voltage, measuring an elapsed time that the minimum battery voltage is detected, resetting a timer circuit, and sampling the minimum battery voltage and the elapsed time of the minimum battery voltage in response to a predefined prompt. The discharge of the detector circuit, the measurement of the minimum battery voltage, the elapsed time of the minimum battery voltage, and the reset of the timer circuit are performed in response to an input voltage being less than the voltage stored within the detector circuit.

US Patent:

20080225455, Sep 18, 2008

Filed:

Mar 13, 2008

Appl. No.:

12/047483

Inventors:

Nicholas Scott Hartley - Chesterfield MI, US
Scott J. Lucy - Lake Orion MI, US
Thomas Scott Schaffer - Shelby Township MI, US
John R. Costello - Rochester Hills MI, US
James Anthony Poirier - Sterling Heights MI, US

Assignee:

CONTINENTAL AUTOMOTIVE SYSTEMS US, INC. - Auburn Hills MI

International Classification:

H02H 9/02

US Classification:

361 932

Abstract:

An overcurrent detection circuit assembly provides a diagnostic feedback signal indicative of an overcurrent or short condition is disclosed. The detection circuit receives a sense current that is proportional to a load current provided to an electrical device or load. The detection circuit provides the feedback signal to a microcontroller that can control the device and the power supply to protect the device against short circuit or other fault condition.

US Patent:

62816314, Aug 28, 2001

Filed:

Dec 10, 1999

Appl. No.:

9/458866

Inventors:

Thomas Scott Schaffer - Clinton Township MI
James Anthony Poirier - Sterling Heights MI

Assignee:

Siemens Automotive Corporation - Auburn Hills MI

International Classification:

B60Q 102

US Classification:

315 82

Abstract:

A vehicle light system circuit includes a PROFET to automatically detect the presence of a faulty light source and switch to an unaffected light source. The system also adjusts the brightness of the unaffected light source by adjusting a PWM signal applied thereto to approximate the brightness of the unaffected light source.

US Patent:

60607882, May 9, 2000

Filed:

Nov 12, 1998

Appl. No.:

9/190522

Inventors:

David K. Carlson - Oakland MI
Thomas S. Schaffer - Clinton Township MI
Timothy J. Green - Holly MI

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

B60Q 104

US Classification:

307 108

Abstract:

A vehicle driver module 10 with circuit 12 for receiving a first signal from a vehicle's controller and providing a second signal responsive thereto. The circuit 12 being placed on a substrate 14 constructed as a heat sink and preferably formed into a U-shaped configuration. A plurality of terminals 16 are attached to the substrate 14 with collars 18 made of an insulative material and having posts 20 constructed to fit within openings 50 of the substrate 14 be fastened thereto and retain the terminals 16 therein. Each of the terminals 16 include a prong 24 projecting out one side of the collar 18 and a clasp 26 out the opposite side of the collar 18. Each clasp 26 is constructed to provide a snap electrical contact at a predetermined location on the circuit on the substrate. The prongs 24 are selectively spaced so as to be received in and mesh with the standard vehicle relay junction block. The vehicle driver module 10 is a solid state, high-speed, high-power switch particularly suited for vehicle headlamps for daytime running lamp operation.

US Patent:

20180218869, Aug 2, 2018

Filed:

Jan 30, 2017

Appl. No.:

15/419336

Inventors:

- Auburn Hills MI, US
Blendi Sullaj - Saint Clair Shores MI, US
James Poirier - Sterling Heights MI, US
Thomas Schaffer - Shelby Township MI, US

International Classification:

H01H 85/055
H05K 1/18
H01H 85/046
H01H 85/08

Abstract:

A thin film fuse is formed by two substantially planar conductors, separated from each other by a thin gap. The conductors and gap are over-coated with a thin, conductive material having a surface tension when melted, great enough to pull the conductive material out of the gap.