David C Jensen

US Patent:

6549443, Apr 15, 2003

Filed:

May 16, 2001

Appl. No.:

09/859158

Inventors:

David W. Jensen - Cedar Rapids IA
Steven E. Koenck - Cedar Rapids IA

Assignee:

Rockwell Collins, Inc. - Cedar Rapids IA

International Classification:

G11C 1100

US Classification:

365 56, 365 52, 365 63

Abstract:

A single event upset (SEU) resistant semiconductor circuit element and a method of making are provided by the invention. The single event upset resistant semiconductor circuit element includes a plurality of parallel-connected semiconductor cell elements. Each semiconductor cell element of the plurality of parallel-connected semiconductor cell elements is physically separated from the other cell elements. Moreover, the semiconductor cell elements may be physically separated by at least one intervening semiconductor cell element of another circuit element.

US Patent:

6587937, Jul 1, 2003

Filed:

Mar 31, 2000

Appl. No.:

09/540345

Inventors:

David W. Jensen - Cedar Rapids IA
Steven E. Koenck - Cedar Rapids IA

Assignee:

Rockwell Collins, Inc. - Cedar Rapids IA

International Classification:

G06F 1200

US Classification:

711173, 711119, 711121, 711129

Abstract:

A multiple virtual machine system with a microprocessor for executing instructions and issuing memory reads and writes to a current partition of a plurality of partitions. The multiple virtual machine may contain a partition management unit for receiving the memory reads and writes from the microprocessor for the current partition. A current partition cache is selected by the partition management unit for the current partition to receive the current partition memory reads and writes from the partition management unit. The current partition cache resolves memory read hits and misses. A next partition cache is selected by the partition management unit when the next partition becomes active on the microprocessor to receive next partition memory reads and writes from the microprocessor. An external memory containing data organized in frame blocks and containing cache block addresses for the plurality of partitions provides data to the microprocessor when the current partition cache resolves the memory miss, and provides appropriate frame block data to the next partition cache to restore the next partition cache to a previous state.

US Patent:

6604222, Aug 5, 2003

Filed:

Apr 30, 1999

Appl. No.:

09/303527

Inventors:

David W. Jensen - Cedar Rapids IA

Assignee:

Rockwell Collins, Inc. - Cedar Rapids IA

International Classification:

H03M 1300

US Classification:

714785

Abstract:

A block code for correcting adjacent errors and almost-adjacent errors that occur in semiconductor memory data, with such errors possibly being caused by a neutron single event upset (NSEU). A block code includes a generator matrix that has columns in which an exclusive-or of adjacent or almost-adjacent columns provides a unique value for each of the possible combination of columns of the generator matrix. As such, a computed syndrome can be used to effectively correct for any adjacent errors and almost-adjacent errors, as well as double-adjacent errors, double-adjacent errors, and triple-almost-adjacent errors.

US Patent:

6883121, Apr 19, 2005

Filed:

Sep 11, 2000

Appl. No.:

09/659398

Inventors:

David W. Jensen - Cedar Rapids IA, US
Steven E. Koenck - Cedar Rapids IA, US

Assignee:

Rockwell Collins - Cedar Rapids IA

International Classification:

G06F011/00

US Classification:

714 49, 714 48

Abstract:

A system and method for enhancing the integrity of a system which uses a high performance, low assurance, general purpose microprocessor to execute an avionics software application and uses a high assurance, low performance microprocessor to monitor the output of the general purpose microprocessor, without the need for comparison of outputs from parallel processors executing functionally equivalent versions of the avionics software application. The monitoring microprocessor is used to analyze state transitions of the first microprocessor and to analyze the computed values output by said general purpose microprocessor, against predetermined limitations based upon aircraft limitations.

US Patent:

6961445, Nov 1, 2005

Filed:

May 4, 2001

Appl. No.:

09/849750

Inventors:

David W. Jensen - Cedar Rapids IA, US
David A. Haverkamp - Springville IA, US
James E. Bodmer - Cedar Rapids IA, US

Assignee:

Rockwell Collins - Cedar Rapids IA

International Classification:

G06K009/00

US Classification:

382103, 701 9, 34820815

Abstract:

A method and apparatus for capturing and processing images from a portion of a system in order to detect a warning condition for providing warnings to users or operators of the system. One or more image capture devices capable of capturing an image, for example, a continuous video, monitor at least a portion of the system. An image processing assembly processes the image captured by the image capture devices in real time for determining if the warning condition exists. Upon determining that the warning condition exists the image processing assembly causes a warning device to provide a warning to the user. The captured image may then be displayed to the user or operator if desired.

US Patent:

7069120, Jun 27, 2006

Filed:

Oct 22, 2003

Appl. No.:

10/691354

Inventors:

Steven E. Koenck - Cedar Rapids IA, US
Guolin Peng - Cedar Rapids IA, US
David W. Jensen - Cedar Rapids IA, US
Gregory A. Arundale - Marion IA, US

Assignee:

Rockwell Collins, Inc. - Cedar Rapids IA

International Classification:

G05D 1/00

US Classification:

701 3, 701 1, 25022712

Abstract:

A passive sensing system for determining a physical position of a mechanical device includes an encoding system configured to convert a position signal representative of the physical position of the mechanical device into an encoded signal in a binary format. The sensing system also comprises a plurality of secondary optical paths coupled to a primary optical path positioned between a light source and the encoding system. The encoded signal comprises a plurality of pulses of light each sequentially delayed by the secondary optical paths. A system for determining a physical position of a flight control surface of an aircraft is also disclosed. A method for determining a physical position of a flight control surface of an aircraft is also disclosed. A passive sensing system for determining a physical position of a flight control surface of an aircraft is also disclosed.

US Patent:

7308203, Dec 11, 2007

Filed:

Jul 15, 2004

Appl. No.:

10/892008

Inventors:

Steven E. Koenck - Cedar Rapids IA, US
David W. Jensen - Cedar Rapids IA, US
John L. Meier - St. Charles MO, US

Assignee:

Rockwell Collins, Inc. - Cedar Rapids IA

International Classification:

H04B 10/10

US Classification:

398118, 398124, 398130

Abstract:

The present invention is a method and system for transmitting data between two objects via a free space optical data link. In an exemplary aspect of the present invention, the method may start with a step in which a laser beam modulated with data is transmitted to the vicinity of an optical collector. The laser beam may be transmitted by a modulated laser transmitter. The laser beam may cause atmospheric nitrogen in the vicinity of the optical collector to fluoresce and emit a set of characteristic line spectra. The set of characteristic line spectra may be received by the optical collector, and at least one characteristic spectral line may be obtained with an optical filter. Preferably, a wavelength of the at least one characteristic spectral line is selected from a group consisting of 3995. 00 angstroms, 4630. 54 angstroms, 5005.

US Patent:

7509537, Mar 24, 2009

Filed:

Feb 2, 2006

Appl. No.:

11/345704

Inventors:

David W. Jensen - Marion IA, US
James A. Marek - Anamosa IA, US

Assignee:

Rockwell Collins, Inc. - Cedar Rapids IA

International Classification:

G06F 11/00

US Classification:

714 47, 714 48, 714712

Abstract:

A prognostic processor for predicting machine failure in avionics electronics comprises prognostic capabilities in a single integrated circuit, with a processor, volatile and non-volatile memory, clock, on-chip and off-chip sensors and transducers, A/D converters, a common I/O interface adapted to be employed in a network of similar prognostic processors, and predictive Failure Analysis (FA) model software, which may be distributed throughout the network. The FA software employs a log file history, with the log file history storing data collected by the prognostic processor, real-time execution of a predictive model, with the ability to update the FA model with data from field failures. The prognostic processor network supports hierarchical processing to work with multiple prognostic processors. The prognostic processor system is applicable to FA monitoring of a wide range of avionics electronic equipment, in particular, Line Replacement Units (LRUs).

Address:

7710 Westbury Dr NE, Cedar Rapids, IA 52402

VIN:

5N1AN08W97C523066

Make:

NISSAN

Model:

XTERRA

Year:

2007