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Kai E Thomenius

from Clifton Park, NY
Age ~78
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Also known as:
Kai C Thomenius, Kai Thomenuis Dr, Cal E Thomenius, Kai Dr S, Kai S
Phone and address:
74 Vanvranken Rd, Clifton Park Center, NY 12065
(518) 371-2943
Related to:
Wayne W Gomez, 69Mathilda ThomeniusJason W Stearns, 53Matilda ThomeniusErika ThomeniusClare M Thomenius, 76Michael J Thomenius, 47M ThomeniusErika S Thomenius, 50
Connected to:
William F Thomer, 102Ellen J Thomerson, 87Melanie L Thomerson, 44Phyllis P Thomerson, 74Susan B Thomerson, 63Anne G Thomes, 74Cheryl L Thomes, 72David J Thomes, 61Erin T Thomes, 40George J Thomes, 80

Kai Thomenius Phones & Addresses

  • 74 Vanvranken Rd, Clifton Park, NY 12065 (518) 371-2943
  • Green Lane, PA

Resumes

Resumes

Kai Thomenius Photo 1

Chief Technologist At Ge Global Research

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Position:
Chief Technologist at GE Global Research, Chief Technologist at General Electric Corporate R&D, Chief Technologist at GE Global Research Center
Location:
Albany, New York Area
Industry:
Medical Devices
Work:
GE Global Research
Chief Technologist
General Electric Corporate R&D since 2003
Chief Technologist
GE Global Research Center since 1996
Chief Technologist
General Electric 1996 - 2010
Chief Technologist
Interspec 1983 - 1995
Director of Research
Kai Thomenius Photo 2

Kai Thomenius

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Skills:
Medical Devices
Kai Thomenius Photo 3

Chief Technologist At Earthlink

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Position:
Chief Technologist at GE Global Research
Location:
Albany, New York Area
Industry:
Information Technology and Services
Work:
GE Global Research since 1996
Chief Technologist

Publications

Us Patents

Enhanced Tissue-Generated Harmonic Imaging Using Coded Excitation

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US Patent:
6375618, Apr 23, 2002
Filed:
Jan 31, 2000
Appl. No.:
09/494465
Inventors:
Richard Yung Chiao - Clifton Park NY
Yasuhito Takeuchi - Tokyo, JP
Anne Lindsay Hall - New Berlin WI
Kai Erik Thomenius - Clifton Park NY
Assignee:
General Electric Company - Schenectady NY
International Classification:
A61B 800
US Classification:
600447
Abstract:
In performing tissue-generated harmonic imaging using coded excitation, the transmit waveform for acquiring the N-th harmonic signal is biphase (1,-1) encoded using two code symbols of a code sequence, the portions (i. e. , chips) of the transmit waveform encoded with the second code symbol each being phase-shifted by 180Â/N relative to the chips encoded with the first code symbol. This is implemented by time shifting the portions (i. e. , chips) of the transmit sequence which are encoded with the second code symbol by ÂN fractional cycle at center frequency relative to the chips of the transmit sequence encoded with the first code symbol. During reception, the desired harmonic signal is isolated by a bandpass filter centered at twice the fundamental frequency and enhanced with decoding.

Method And Apparatus Using Coded Excitation In Ultrasonic Perfusion Imaging

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US Patent:
6558328, May 6, 2003
Filed:
Jun 4, 2001
Appl. No.:
09/871881
Inventors:
Richard Yung Chiao - Menomonee Falls WI
Jonathan Matthews Rubin - Ann Arbor MI
Kai Erik Thomenius - Clifton Park NY
Assignee:
General Electric Company - Niskayuna NY
International Classification:
A61B 800
US Classification:
600447
Abstract:
A method and an apparatus for perfusion imaging using coded excitation. Bursting pulses are scanned over the region of interest in one or more frames followed by scanning one or more encoded imaging pulses in each subsequent frame. The bursting pulse is intended to break contrast micro-bubbles within a transmit focal zone and therefore should have high mechanical index and low frequency. The basic concept is to use a very low-amplitude encoded pulse train to image the contrast agents. The low amplitude prevents the contrast bubbles in the transmit focal zone from being destroyed while imaging, and the coded excitation provides the necessary signal-to-noise ratio. The imaging pulses are transmitted during refilling of the transmit focal zone with contrast agent subsequent to transmission of the bursting pulse into the transmit focal zone. On receive, the receive vectors are decoded to form a compressed pulse.

Focus Correction For Ultrasound Imaging Through Mammography Compression Plate

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US Patent:
6607489, Aug 19, 2003
Filed:
Apr 5, 2001
Appl. No.:
09/826149
Inventors:
Ralph Thomas Hoctor - Saratoga Springs NY
Kai Erik Thomenius - Clifton Park NY
Assignee:
General Electric Company - Niskayuna NY
International Classification:
A61B 800
US Classification:
600443, 600448, 600444
Abstract:
A coherent imaging system includes a transmitter and a receive beamformer which are programmed with transmit and receive time delays, respectively, that take into account time-of-flight errors caused by an intervening mammography compression plate between the biological tissue being imaged and a phased array of ultrasonic transducer elements. A simple ray-tracing method is utilized to adjust the transmit and receive time delays according to compression plate thickness and speed of ultrasound propagation to mitigate spherical aberration due to the compression plate.

Mosaic Arrays Using Micromachined Ultrasound Transducers

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US Patent:
6865140, Mar 8, 2005
Filed:
Mar 6, 2003
Appl. No.:
10/383990
Inventors:
Kai Thomenius - Clifton Park NY, US
Rayette A. Fisher - Niskayuna NY, US
David M. Mills - Niskayuna NY, US
Robert G. Wodnicki - Schenectady NY, US
Christopher Robert Hazard - Schenectady NY, US
Lowell Scott Smith - Niskayuna NY, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
H04R017/00
US Classification:
367155, 367163, 367174, 381174
Abstract:
An ultrasound transducer array includes a multiplicity of subelements interconnected by a multiplicity of microelectronic switches, each subelement comprising a respective multiplicity of micromachined ultrasound transducer (MUT) cells. The MUT cells within a particular subelement are hard-wired together. The switches are used to configure the subelements to form multiple concentric annular elements. This design dramatically reduces complexity while enabling focusing in the elevation direction during ultrasonic image data acquisition.

Method And Apparatus For Ultrasonic Continuous, Non-Invasive Blood Pressure Monitoring

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US Patent:
7125383, Oct 24, 2006
Filed:
Dec 30, 2003
Appl. No.:
10/749181
Inventors:
Ralph T. Hoctor - Saratoga Springs NY, US
Kai E. Thomenius - Clifton Park NY, US
Aaron Mark Dentinger - Niskayuna NY, US
Jeremy William McCarter - Schenectady NY, US
Assignee:
General Electric Company - Niskayuna NY
International Classification:
A61B 8/00
A61B 5/02
US Classification:
600438, 450491
Abstract:
Ultrasound is used to provide input data for a blood pressure estimation scheme. The use of transcutaneous ultrasound provides arterial lumen area and pulse wave velocity information. In addition, ultrasound measurements are taken in such a way that all the data describes a single, uniform arterial segment. Therefore a computed area relates only to the arterial blood volume present. Also, the measured pulse wave velocity is directly related to the mechanical properties of the segment of elastic tube (artery) for which the blood volume is being measured. In a patient monitoring application, the operator of the ultrasound device is eliminated through the use of software that automatically locates the artery in the ultrasound data, e. g. , using known edge detection techniques. Autonomous operation of the ultrasound system allows it to report blood pressure and blood flow traces to the clinical users without those users having to interpret an ultrasound image or operate an ultrasound imaging device.

Integrated Interface Electronics For Reconfigurable Sensor Array

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US Patent:
7257051, Aug 14, 2007
Filed:
Oct 29, 2004
Appl. No.:
10/977930
Inventors:
Kai E. Thomenius - Clifton Park NY, US
Rayette Ann Fisher - Niskayuna NY, US
Robert Gideon Wodnicki - Niskayuna NY, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
H04R 17/00
A61B 8/00
US Classification:
367153, 367105, 367181, 600447, 600459
Abstract:
An integrated switch matrix for reconfiguring subelements of a mosaic sensor array to form elements. The configuration of the switch matrix is fully programmable. The switch matrix includes access switches that connect subelements to bus lines and matrix switches that connect subelements to subelements. Each subelement has a unit switch cell comprising at least one access switch, at least one matrix switch, a respective memory element for storing the future state of each switch, and a respective control circuit for each switch. The access and matrix switches are of a type having the ability to memorize control data representing the current switch state of the switch, which control data includes a data bit input to turn-on/off circuits incorporated in the control circuit. The sensor array and the switching matrix may be built in different strata of a co-integrated structure or they may be built on separate wafers that are electrically connected. If the sensors are arranged on a hexagonal grid, the unit switch cells may be arranged on either a hexagonal or rectangular grid.

Switching Circuitry For Reconfigurable Arrays Of Sensor Elements

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US Patent:
7280435, Oct 9, 2007
Filed:
Oct 29, 2004
Appl. No.:
10/978196
Inventors:
Kai Erik Thomenius - Clifton Park NY, US
Rayette Ann Fisher - Niskayuna NY, US
Robert Gideon Wodnicki - Niskayuna NY, US
Christopher Robert Hazard - Schenectady NY, US
Lowell Scott Smith - Niskayuna NY, US
David Martin Mills - Niskayuna NY, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
H04R 17/00
A61B 8/00
US Classification:
367153, 367105, 367181, 600447, 600459
Abstract:
A device comprising an array of sensors that are reconfigurable by means of a switching network. The sensors may be optical, thermal or pressure sensors or ultrasonic transducers. More specifically, the device comprises: a multiplicity of sensor elements; a plurality of bus lines; a set of access switches for selectively connecting a set of the sensor elements in a row to a bus line, one of the access switches being connected to a first sensor element; a multiplicity of sets of matrix switches, each of the sets of matrix switches selectively connecting a respective sensor element of the multiplicity of sensor elements to a respective set of adjacent sensor elements, one of the matrix switches being connected to the first sensor element and to a second sensor element that is not a member of the set of sensor elements; and control circuitry that controls the access switches and the matrix switches in accordance with a selected switching configuration such that the first sensor element is connected to the bus line via said one access switch, while at the same time the second sensor element is connected to said one access switch via said one matrix switch.

Optimized Switching Configurations For Reconfigurable Arrays Of Sensor Elements

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US Patent:
7353056, Apr 1, 2008
Filed:
Oct 29, 2004
Appl. No.:
10/978175
Inventors:
Christopher Robert Hazard - Niskayuna NY, US
Robert Gideon Wodnicki - Niskayuna NY, US
Rayette Ann Fisher - Niskayuna NY, US
Kai E. Thomenius - Clifton Park NY, US
Lowell Scott Smith - Niskayuna NY, US
David Martin Mills - Niskayuna NY, US
Assignee:
General Electric Company - Niskayuna NY
International Classification:
A61B 5/05
A61B 8/00
US Classification:
600407, 600447
Abstract:
The reconfigurable ultrasound array disclosed herein is one that allows groups of subelements to be connected together dynamically so that the shape of the resulting element can be made to match the shape of the wave front. This can lead to improved performance and/or reduced channel count. Reconfigurability can be achieved using a switching network. A methodology and an algorithm are disclosed that allows the performance of this switching network to be improved by properly choosing the configuration of the switching network.
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Kai E Thomenius from Clifton Park, NY, age ~78 Get Report