David L Greene

US Patent:

55175376, May 14, 1996

Filed:

Aug 18, 1994

Appl. No.:

8/292320

Inventors:

David A. Greene - San Jose CA
Rosemary A. Greene - San Jose CA
Donald C. Gaubatz - Cupertino CA

Assignee:

General Electric Company - San Jose CA

International Classification:

G21C 1700

US Classification:

376252

Abstract:

A system for mapping absolute acoustic noise intensity in a three-dimensional acoustic noise field, and using three-dimensional absolute noise intensities to infer operational or performance characteristics of components or structures within the monitored field. Localized noise sources are extracted using a distant array of transducers, and the absolute intensity can be measured even when totally masked by background noise at the transducer locations. The system includes an integrated sensor installation; a neural network detection system algorithm; a zoom system to precisely examine a small region in the steam generator vessel; a fuzzy logic system detection algorithm; and an expert detection system. The signal processing subsystem operates at three different levels of detection. At the top level of detection a trained neural network system monitors the vessel length for any indication of a leak.

US Patent:

56251505, Apr 29, 1997

Filed:

Aug 18, 1994

Appl. No.:

8/292675

Inventors:

David A. Greene - San Jose CA
Rosemary A. Greene - San Jose CA
Donald C. Gaubatz - Cupertino CA

Assignee:

General Electric Company - San Jose CA

International Classification:

G01H 1100
G01M 300
G21C 1700

US Classification:

73649

Abstract:

A sensor system for mapping absolute acoustic noise intensity in a three-dimensional acoustic noise field. Localized noise sources within a vessel are extracted using a distant array of transducers mounted on the vessel wall. The absolute intensity can be measured even when totally masked by background noise at the transducer locations. The system includes an integrated transducer installation. Each transducer is an accelerometer which is mounted on the vessel wall using a rigid attachment rod which serves as an ultrasonic waveguide. The output of each transducer is split into low- and high-frequency components, the low-frequency component being a function of the vibrational displacement of the localized portion of the vessel wall and the high-frequency component being a function of the vibrational/ultrasonic waves propagating through the localized portion of the vessel wall.

US Patent:

55333834, Jul 9, 1996

Filed:

Aug 18, 1994

Appl. No.:

8/292656

Inventors:

David A. Greene - San Jose CA
Rosemary A. Greene - San Jose CA
Donald C. Gaubatz - Cupertino CA

Assignee:

General Electric Company - San Jose CA

International Classification:

G01M 324
G21C 17007

US Classification:

73 405A

Abstract:

A system for mapping absolute acoustic noise intensity in a three-dimensional acoustic noise field, and using three-dimensional absolute noise intensities to infer operational or performance characteristics of components or structures within the monitored field. Localized noise sources are extracted using a distant array of transducers, and the absolute intensity can be measured even when totally masked by background noise at the transducer locations. The system includes an integrated sensor installation; a neural network detection system algorithm; a zoom system to precisely examine a small region in the steam generator vessel; a fuzzy logic system detection algorithm; and an expert detection system. The signal processing subsystem operates at three different levels of detection. At the top level of detection a trained neural network system monitors the vessel length for any indication of a leak.

US Patent:

20190167101, Jun 6, 2019

Filed:

Jan 24, 2019

Appl. No.:

16/256966

Inventors:

- Mountain View CA, US
Patrick Gerard MULLIGAN - Belmont CA, US
David A. GREENE - Fort Wayne IN, US

International Classification:

A61B 5/00
A61B 5/04

Abstract:

An external data retrieval apparatus receives a low resolution version of a physiological signal from an active implantable medical device and determines if the physiological signal represents a clinically significant event. The apparatus provides an indication of such determination to the implantable medical device. If the physiological signal does represent a clinically significant event, the apparatus receives a full download of the physiological signal from the implantable device.

US Patent:

20190099596, Apr 4, 2019

Filed:

Sep 29, 2017

Appl. No.:

15/721539

Inventors:

- Mountain View CA, US
Jacob A. Mandell - Mountain View CA, US
David A. Greene - Fort Wayne IN, US

International Classification:

A61N 1/05
A61B 17/70
A61B 17/34

Abstract:

A lead fixation accessory configured to be positioned over a skull hole and to transition between an opened state and a closed state during a lead implant procedure protects against lead migration by providing a mechanism for securing the lead in place at the skull hole while a stylet is removed from the lead. The lead fixation accessory remains in place after the implant procedure to provide chronic lead stability. A lead stabilization tool configured to access and grip a lead through a slotted cannula during the lead implant procedure also protects against lead migration by providing a mechanism for securing the lead in place at a point where the lead exits the skull hole while the slotted cannula is removed from the skull hole and peeled away from the lead.

US Patent:

20150313490, Nov 5, 2015

Filed:

May 5, 2014

Appl. No.:

14/270212

Inventors:

- Mountain View CA, US
Patrick Gerard MULLIGAN - Belmont CA, US
David A. GREENE - Fort Wayne IN, US

Assignee:

NeuroPace, Inc. - Mountain View CA

International Classification:

A61B 5/04
A61B 5/00
A61B 5/0476

Abstract:

An external data retrieval apparatus receives a low resolution version of a physiological signal from an active implantable medical device and determines if the physiological signal represents a clinically significant event. The apparatus provides an indication of such determination to the implantable medical device. If the physiological signal does represent a clinically significant event, the apparatus receives a full download of the physiological signal from the implantable device.