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David G Bellemore

from Glastonbury, CT
Age ~54

David Bellemore Phones & Addresses

  • 33 Empress Ln, Glastonbury, CT 06033 (860) 430-5576 (860) 633-4686
  • Fairfield, CT
  • 4313 Avalon Gates, Trumbull, CT 06611 (203) 373-1177
  • Arlington, VA
  • Washington, DC
  • Woodbury, CT
  • Chelmsford, MA
  • Menlo Park, CA
  • 33 Empress Ln, Glastonbury, CT 06033 (203) 906-7272

Work

Position: Protective Service Occupations

Education

Degree: High school graduate or higher

Business Records

Name / Title
Company / Classification
Phones & Addresses
David Bellemore
Owner
Bellemore Furniture Repair
Retail · Reupholstery/Furniture Repair · Furniture Repair
14 Tracy Dr, Vernon Rockville, CT 06066
(860) 875-1774

Publications

Us Patents

Fiber Bragg Grating Peak Detection System And Method

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US Patent:
6346702, Feb 12, 2002
Filed:
Dec 10, 1999
Appl. No.:
09/458911
Inventors:
Michael A. Davis - Glastonbury CT
David R. Fournier - Ashford CT
David G. Bellemore - Woodbury CT
William M. Stielau - Middletown CT
Assignee:
CiDRA Corporation - Wallingford CT
International Classification:
G01J 104
US Classification:
25022714, 385 12
Abstract:
A fiber Bragg grating peak detection system has a broadband source that provides a broadband optical signal, a fiber Bragg grating and a variable threshold and/or grating profile peak detection unit. The fiber Bragg grating responds to the broadband optical signal, and further responds to a physical parameter, for providing a fiber Bragg grating optical signal containing information about the physical parameter. The variable threshold or grating profile peak detection unit responds to the fiber Bragg grating optical signal, for providing a variable threshold or grating profile peak detection unit signal containing information about a peak detected in the fiber Bragg grating optical signal that is used to determine the physical parameter. The variable threshold or grating profile peak detection unit detects the peak using either a variable threshold peak detection or a grating profile peak detection, or a combination thereof. During the variable threshold peak detection, the variable threshold or grating profile peak detection unit determines a respective local threshold value for each wavelength over a spectral band of the fiber Bragg grating optical signal.

Method And Apparatus For Correcting Systematic Error In A Wavelength Measuring Device

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US Patent:
6403949, Jun 11, 2002
Filed:
Nov 23, 1999
Appl. No.:
09/448003
Inventors:
Michael A. Davis - Glastonbury CT
David R. Fournier - Ashford CT
David G. Bellemore - Woodbury CT
Assignee:
CiDRA Corporation - Wallingford CT
International Classification:
G01B 910
US Classification:
25022727, 356 355, 374170
Abstract:
A method and apparatus for compensating for systematic error in a wavelength measuring device that provides values for the wavelengths reflected from one or more optical fibers in which fiber Bragg gratings (FBGs) serve as sensors. A high-precision temperature sensing and measuring circuit is used to measure the temperature of a reference FBG that also provides light at some wavelength to the wavelength measuring device. The wavelength reflected by the reference FBG changes with temperature in a way that is known. The (value of) the wavelength being reflected from the reference FBG is then provided to a dynamic compensator, which also receives the wavelengths of light reflected from the sensor FBGs, and the dynamic compensator adjusts the wavelengths of the sensor FBGs using a correction based on the correction required to adjust the value of the wavelength of the reference FBG as measured by the wavelength measuring device.

Method For Improving The Accuracy In The Determination Of A Waveform Center Of A Waveform Signal

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US Patent:
6529923, Mar 4, 2003
Filed:
May 29, 1998
Appl. No.:
09/087447
Inventors:
Michael A. Davis - Alexandria VA
David G. Bellemore - Wallingford CT
Assignee:
CiDRA Corporation - Wallingford CT
International Classification:
G06F 700
US Classification:
708207, 702 66
Abstract:
Prior to performing a centroid calculation on a waveform signal that is discretely sampled at a limited number of sample points, the last sample point (V , A ) is eliminated if the magnitude of the amplitude at the first sample point (A ) is greater than the last sample point (A ), and the difference in magnitude between the first and last sample points (A -A ) is greater than the difference in magnitude between the second to last sample point and the first sample point (A -A ). The first sample point (V , A ) is eliminated prior to the centroid calculation if the magnitude of the amplitude at the last sample point (A ) is greater than the first sample point (A ), and the difference in magnitude between the last and first sample points (A -A ) is greater than the difference in magnitude between the second sample point and the last sample point (A -A ). In a second embodiment of the invention, a first centroid calculation is performed using a set of samples in which one side of the waveform signal has the lowest amplitude value sample. Sample values on the side of the waveform initially having the lowest amplitude value are then eliminated until the opposing side of the waveform has the lowest amplitude value sample.

Tunable Optical Structure Featuring Feedback Control

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US Patent:
6563968, May 13, 2003
Filed:
Sep 10, 2001
Appl. No.:
09/950509
Inventors:
Michael A. Davis - Glastonbury CT
Martin A. Putnam - Cheshire CT
David G. Bellemore - Fairfield CT
Assignee:
CiDRA Corporation - Wallingford CT
International Classification:
G02B 600
US Classification:
385 12
Abstract:
A tunable optical device has a compression tuned optical structure and a displacement sensor. The compression tuned optical structure responds to an optical signal, and further responds to a displacement sensor signal, for providing a compression tuned optical structure signal containing information about a change in an optical characteristic of the compression tuned optical structure, and for also further providing an excitation caused by a change in a displacement of the compression tuned optical structure. The displacement sensor responds to the excitation, for providing a displacement sensor signal containing information about the change in the displacement of the compression tuned optical structure. The compression tuned optical structure may be in the form of a dogbone structure that is an all-glass compression unit having wider end portions separated by a narrower intermediate portion. The displacement sensor includes a capacitance sensor affixed to the compression tuned optical structure for measuring a change in capacitance between two parallel and opposing plates that depends on a change in a gap or an area with respect to the two parallel and opposing plates.

Method For Reducing Skew In A Real-Time Centroid Calculation

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US Patent:
6804693, Oct 12, 2004
Filed:
Aug 14, 2001
Appl. No.:
09/929423
Inventors:
David G. Bellemore - Fairfield CT
David R. Fournier - Hudson MA
Michael A. Davis - Glastonbury CT
Assignee:
CiDRA Corporation - Wallingford CT
International Classification:
G06F 700
US Classification:
708207, 702 66
Abstract:
A method and corresponding apparatus for determining the centroid (V ) of a waveform signal being sampled at a set of parameter values (V , i=1,. . . , n) yielding a corresponding set of sampled amplitudes (A , i=1,. . . , n), each parameter value and corresponding amplitude forming a sampled point (V , A ), the method including the steps of: selecting an amplitude at which to create an interpolated point; interpolating a first parameter value corresponding to the amplitude selected in the step of selecting an amplitude; and performing a centroid calculation using only the sampled points with an amplitude greater than a predetermined threshold. The waveform is sometimes sampled in the presence of background noise, and the method sometimes also includes: estimating the background (B ) for each value in the set of parameter values at which sampling is performed; and reducing the amplitude (A ) of each sampled amplitude by the background (B ) so estimated.

Method And Apparatus For Detecting Peaks In An Optical Signal Using A Cross-Correlation Filter

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US Patent:
7006206, Feb 28, 2006
Filed:
May 1, 2003
Appl. No.:
10/427712
Inventors:
D. Ralph Jones - Guilford CT, US
David G. Bellemore - Fairfield CT, US
Assignee:
CiDRA Corporation - Wallingford CT
International Classification:
G01N 21/00
US Classification:
356 731
Abstract:
A method and apparatus is provided for detecting peaks in an optical signal. The method comprises the three basic steps of: (1) sampling the optical signal to obtain sampled data containing information about the optical signal; (2) applying a cross-correlation filter on the sampled data to obtain cross-correlated data containing information about one or more peaks in the optical signal; and (3) detecting the one or more peaks in the optical signal based on the cross-correlation data. In one embodiment, the cross-correlation filter has an average value that is less than zero. The step of applying the cross-correlation filter includes reducing random noise present in the sampled data to remove quasi-dc components from the sampled data.

Fiber Bragg Grating Interrogation System With Adaptive Calibration

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US Patent:
58185852, Oct 6, 1998
Filed:
Feb 28, 1997
Appl. No.:
8/810167
Inventors:
Michael A. Davis - Alexandria VA
Alan D. Kersey - Fairfax Station VA
David G. Bellemore - Menlo Park CA
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
G01B 902
US Classification:
356345
Abstract:
A system and method for providing accurate measurements of the reflected wavelengths from multiple strings of fiber Bragg grating (FBG) elements using a single scanning optical filter and an isolated duplicate reference string of FBG elements. A reference string of FBG elements permits precise long-term wavelength determination of sensors by providing real-time adaptive calibration adjustments to correct for any nonlinearities in the response of the single scanning optical filter.

Tunable Optical Structure Featuring Feedback Control

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US Patent:
63109905, Oct 30, 2001
Filed:
Mar 6, 2000
Appl. No.:
9/519802
Inventors:
Martin A. Putnam - Cheshire CT
Robert N. Brucato - Waterbury CT
Michael A. Davis - Glastonbury CT
David G. Bellemore - Trumbull CT
Walter A. Helm - Farmington CT
Assignee:
CiDRA Corporation - Wallingford CT
International Classification:
G02B 600
US Classification:
385 12
Abstract:
A tunable optical device has a compression tuned optical structure and a displacement sensor. The compression tuned optical structure responds to an optical signal, and further responds to a displacement sensor signal, for providing a compression tuned optical structure signal containing information about a change in an optical characteristic of the compression tuned optical structure, and for also further providing an excitation caused by a change in a displacement of the compression tuned optical structure. The displacement sensor responds to the excitation, for providing a displacement sensor signal containing information about the change in the displacement of the compression tuned optical structure. The compression tuned optical structure may be in the form of a dogbone structure that is an all-glass compression unit having wider end portions separated by a narrower intermediate portion. The displacement sensor includes a capacitance sensor affixed to the compression tuned optical structure for measuring a change in capacitance between two parallel and opposing plates that depends on a change in a gap or an area with respect to the two parallel and opposing plates.
David G Bellemore from Glastonbury, CT, age ~54 Get Report