Steven Robert Schmidt

US Patent:

7390454, Jun 24, 2008

Filed:

Aug 19, 2004

Appl. No.:

10/921514

Inventors:

Catherine A. Ostrander - Grand Blanc MI, US
Steven J. Schmidt - Holly MI, US
Michael A. Szymberski - Sterling Hts. MI, US
Charles K. Buehler - Warren MI, US

Assignee:

General Motors Corporation - Detroit MI

International Classification:

B29C 35/16

US Classification:

264554, 264132, 264544

Abstract:

A thermoforming methodology for laminated thermoplastic sheets which preserves the class “A” finish and high gloss thereof. A thermoformer has a vacuum box component which includes a mold, and a pressure box component which is selectively sealable in relation to the vacuum box component. A heated laminated thermoplastic sheet is placed in the thermoformer, the class “A” side thereof facing away from the mold, and the thermoformer sealed. Vacuum is applied to the vacuum box component and simultaneously air pressure is applied to the pressure box component, including application of chilled compressed air, resulting in forming of the sheet on the mold and controlled cooling of the sheet which preserves its class “A” finish and high gloss.

US Patent:

7645416, Jan 12, 2010

Filed:

Aug 22, 2006

Appl. No.:

11/466112

Inventors:

Charles K. Buehler - Warren MI, US
Charles C. Mentzer - Beverly Hills MI, US
Michael P. Balogh - Novi MI, US
Catherine A. Ostrander - Grand Blanc MI, US
Steven J. Schmidt - Holly MI, US

Assignee:

GM Global Technology Operations, Inc. - Detroit MI

International Classification:

B29C 51/00

US Classification:

264554, 264 28, 264132, 264519, 264544, 264570, 264348

Abstract:

A thermoforming methodology for laminated thermoplastic sheets which preserves the class “A” finish and high gloss thereof. In a thermoforming process including heating followed by vacuum and opposing air pressure application, and then followed by application of chilled compressed air, control of spherulite formation using any of: addition of a nucleating agent to the paint film, using the chilled compressed air at a temperature of substantially about 32 F. , heating to no more than about 311 F. , selecting a paint film having a high melting point temperature, and selecting a paint film that is non-crystalline.

US Patent:

20130041260, Feb 14, 2013

Filed:

Aug 11, 2011

Appl. No.:

13/208193

Inventors:

Steven Schmidt - Clinton Twp MI, US
Cuiping Li - Troy MI, US
Olivier Roy - Royak Oak MI, US
Ivana Jovanovic - Lausanne, CH

International Classification:

A61B 8/00

US Classification:

600442

Abstract:

A method for imaging a volume of tissue in a scan region, including: emitting, from transmitting transducers, acoustic waveforms toward the volume of tissue; detecting, with detecting transducers, a plurality acoustic signals derived from acoustic waveforms interacting with the volume of tissue; generating from the detected acoustic signals a plurality of variable attenuation maps, in which each variable attenuation map corresponds to acoustic signals detected by a respective detecting transducer and includes a plurality of variable attenuation coefficients mapped to the scan region; modifying at least a portion of the detected acoustic signals based on one or more variable attenuation maps; and generating a reflection rendering of the volume of tissue based on the modified acoustic signals.

US Patent:

20130204136, Aug 8, 2013

Filed:

Feb 1, 2013

Appl. No.:

13/756851

Inventors:

Olivier Roy - Royal Oak MI, US
Steven Schmidt - Clinton Twp MI, US
Cuiping Li - Troy MI, US
Roman Janer - Plymouth MI, US
Xiaoyang Cheng - Ann Arbor MI, US
Jefferey Goll - Lake Oswego OR, US

Assignee:

Delphinus Medical Technologies, Inc. - Plymourth MI

International Classification:

A61B 8/00
A61B 8/08
A61B 8/15

US Classification:

600448

Abstract:

A system and method for imaging a volume of tissue comprising: a modular transducer array, configured to substantially surround the volume of tissue, emit acoustic waveforms toward the volume of tissue, and receive acoustic waveforms scattered by the volume of tissue, comprising a first and a second modular transducer subarray configured to couple to one another; a controller configured to control acoustic signals emitted by the first and the second modular transducer subarrays; an electronic subsystem, coupled to the modular transducer array, comprising a multiplexor and beam-forming elements and configured to receive a set of acoustic data from the first and the second modular transducer subarrays; and a processor configured to analyze the set of acoustic data, determine the distribution of at least one acoustomechanical parameter within the volume of tissue, and render an image of the volume of tissue based on the acoustomechanical parameter.

US Patent:

20140066772, Mar 6, 2014

Filed:

Aug 30, 2013

Appl. No.:

14/015459

Inventors:

Olivier Roy - Royal Oak MI, US
Steven Schmidt - Clinton Twp MI, US

Assignee:

Delphinus Medical Trechnologies, Inc. - Plymouth MI

International Classification:

A61B 8/08

US Classification:

600447

Abstract:

A method and system for imaging a volume of tissue and defining a tissue boundary comprising: receiving a baseline dataset representative of a first set of signals interacting with a medium; receiving a reconstruction dataset representative of a second set of signals interacting with the medium and the volume of tissue present in the medium; determining a set of direct emitter-receiver pairs, each defining a direct trajectory that does not pass through the volume of tissue; from the set of direct emitter-receiver pairs, determining a set of tangential emitter-receiver pairs, each defining a bounding vector comprising a tangent point along the tissue boundary; determining a set of interior pixels, of the reconstruction dataset, characterized by a set of pixel locations within the tissue boundary; and reconstructing pixels of the set of interior pixels, thereby transforming the baseline and the reconstruction datasets into an image rendering of the volume of tissue.

US Patent:

20160030000, Feb 4, 2016

Filed:

Aug 4, 2015

Appl. No.:

14/817470

Inventors:

- Plymouth MI, US
Cuiping Li - Plymouth MI, US
Olivier Roy - Plymouth MI, US
Steven Schmidt - Plymouth MI, US
Nebojsa Duric - Plymouth MI, US

International Classification:

A61B 8/15
A61B 8/08
A61B 8/00

Abstract:

A method and system for generating an enhanced image of a volume of tissue, the method comprising: emitting acoustic waveforms toward the volume of tissue; detecting a set of acoustic signals derived from acoustic waveforms interacting with the volume of tissue; generating, from the set of acoustic signals, an initial model representing a distribution of an acoustomechanical parameter across a region of the volume of tissue; extracting a set of frequency components, from the set of acoustic signals; generating a first simulated wavefield with a first frequency component of the set of frequency components; generating an updated model of the initial model with the first simulated wavefield; iteratively refining the updated model with a set of simulated wavefields associated with the set of frequency components until a threshold condition is satisfied, thereby producing a final model; and generating the enhanced image from the final model of the volume of tissue.

US Patent:

20150313577, Nov 5, 2015

Filed:

May 4, 2015

Appl. No.:

14/703746

Inventors:

- Plymouth MI, US
Peter Littrup - Plymouth MI, US
Cuiping Li - Plymouth MI, US
Olivier Roy - Plymouth MI, US
Steven Schmidt - Plymouth MI, US

International Classification:

A61B 8/08
A61B 8/00

Abstract:

A method and system for analyzing stiffness in a volume of tissue, the method including: emitting acoustic waveforms toward the volume of tissue with an array of ultrasound transmitters; detecting, with an array of ultrasound receivers, a set of acoustic signals derived from acoustic waveforms transmitted through the volume of tissue; generating, from the set of acoustic signals, a sound speed map and an acoustic attenuation map of a region of the volume of tissue, generating a stiffness map derived from combination of a set of sound speed parameter values of the sound speed map and a corresponding set of acoustic attenuation parameter values of the acoustic attenuation map, the stiffness map representing the distribution of the stiffness parameter across the region; and at a display in communication with the computer processor, rendering a stiffness image of the volume of tissue, based upon the stiffness map.