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Christina A Knopp

from Newburyport, MA
Age ~52
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Also known as:
Christina A Udelson, Christina Knopp Ret, Christine A Knopp, Kristine J Knopp, Christina A Vdelson
Phone and address:
55 Curzon Mill Rd, Plum Island, MA 01950
(978) 255-2025
Related to:
Leroy J Buss, 80
Connected to:
Adine B Knopp, 94Billy L Knopp, 92Catherine A Knopp, 70Claudia D Knopp, 68Deborah G Knopp, 73Jaclyn A Knopp, 44Jan P Knopp, 73Josephine Knopp, 94Joy Knopp, 53Kaitlyn L Knopp, 33

Christina Knopp Phones & Addresses

  • 55 Curzon Mill Rd, Newburyport, MA 01950 (978) 255-2025
  • 456 Main St, Amesbury, MA 01913 (978) 388-2383
  • Nantucket, MA
  • 91 Thorndike St, Brookline, MA 02446 (978) 255-2025
  • Boulder, CO
  • Boston, MA
  • Westminster, CO
  • Allentown, PA
  • Wilmington, MA
  • 91 Thorndike St, Brookline, MA 02446 (978) 985-6478

Work

Position: Production Occupations

Education

Degree: Associate degree or higher

Business Records

Name / Title
Company / Classification
Phones & Addresses
Christina A. Knopp
Manager
237 MARLBOROUGH STREET LLC
91 Thorndike St, Brookline, MA 02446

Publications

Us Patents

Monitoring Led Wavelength Shift In Photoplethysmography

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US Patent:
20030073889, Apr 17, 2003
Filed:
Oct 11, 2001
Appl. No.:
09/975807
Inventors:
Kevin Keilbach - Boulder CO, US
Christina Knopp - Amesbury MA, US
International Classification:
A61B005/00
US Classification:
600/322000
Abstract:
The present invention is directed to a method and system for the determination of a spectral characteristic of light signals emitted by light signal emitters of a photoplethysmographic probe to achieve improved accuracy in photoplethysmographic blood analyte level determinations. In one embodiment, a system for use in photoplethysmography includes a plurality of light signal emitters (A-D) within a photoplethysmographic probe () and a voltage sensor () and data processor () within a photoplethysmographic monitor unit () to which the probe () is connectable. The voltage sensor () is operable to sense a voltage drop across each light signal emitter (A-D) as each emits a corresponding light signal (A-D) for transmission through a tissue under test. The data processor () is operable to establish at least one spectral characteristic, such as the center wavelength, of each emitted light signal (A-D) based on the sensed voltage drops.

Laser Diode Drive Scheme For Noise Reduction In Photoplethysmographic Measurements

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US Patent:
20020068859, Jun 6, 2002
Filed:
Dec 1, 2000
Appl. No.:
09/727562
Inventors:
Christina Knopp - Amesbury MA, US
International Classification:
A61B005/00
US Classification:
600/322000
Abstract:
The present invention discloses a photoplethysmographic measurement apparatus and related method for determining a blood analyte level in a tissue under test employing an inventive laser diode drive scheme to achieve noise reduction. Noise reduction is achieved by driving a plurality of laser diodes with modulated drive signals to cause emission of light signals from the laser diodes that are directed through the tissue under test and from which various blood analyte levels are determinable based upon the intensities of the transmitted light signals. Each drive signal is modulated at an appropriate modulation frequency that causes its corresponding laser diode to operate in a low noise regime wherein laser intensity noise is reduced, and the modulation depth of each drive signal is set to broaden the line width of the laser diode and thereby reduce the potential for optical feedback noise. In this regard, the modulation frequency and depth of each drive signal may be set to achieve operation of its corresponding laser diode at a desired laser intensity noise level. The desired laser intensity noise level may be near that (e.g., within the same order of magnitude) of the independent laser RIN level.
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Christina A Knopp from Newburyport, MA, age ~52 Get Report