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Albert Waxman

from Los Gatos, CA

Albert Waxman Phones & Addresses

  • Los Gatos, CA

Us Patents

  • Multi-Mode Ultrasound Scanner

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  • US Patent:
    44248130, Jan 10, 1984
  • Filed:
    Aug 14, 1981
  • Appl. No.:
    6/292948
  • Inventors:
    James F. Havlice - Los Altos CA
    Albert S. Waxman - Los Gatos CA
    Henry L. Schwartz - Los Gatos CA
    David E. Stepner - Cupertino CA
  • Assignee:
    Diasonics, Inc. - Milpitas CA
  • International Classification:
    G01N 2904
  • US Classification:
    128660
  • Abstract:
    A multi-mode scanner head employing split (semicircular transducers) is described. In some modes such as simultaneous B-scan and M-scan each transducer moves independent of the other. For continuous Doppler mode the transducers move together. The relatively small, hand-held scanner head is particularly useful for cardiac examinations.
  • Electronic Storage Tube Target Having A Radiation Insensitive Layer

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  • US Patent:
    40514064, Sep 27, 1977
  • Filed:
    Sep 24, 1975
  • Appl. No.:
    5/616125
  • Inventors:
    Albert S. Waxman - Santa Clara CA
  • Assignee:
    Princeton Electronic Products, Inc. - North Brunswick NJ
  • International Classification:
    H01J 2941
    H01J 3108
  • US Classification:
    313391
  • Abstract:
    A target for electronic storage tubes of the non-direct viewing type having a target comprised of substantially coplanar insulating and conducting areas wherein the insulating area is provided on one face of the conducting area in a predetermined and preferably striped pattern. The insulating pattern is comprised of at least a layer of ionizing radiation insensitive material taken from the group of materials comprised of silicon nitride, silicon oxynitride, aluminum oxide.
  • Ultrasonic Imaging Apparatus

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  • US Patent:
    42313732, Nov 4, 1980
  • Filed:
    Jul 18, 1978
  • Appl. No.:
    5/925701
  • Inventors:
    Albert S. Waxman - Los Gatos CA
    James F. Havlice - Los Altos CA
  • Assignee:
    Diasonics - Sunnyvale CA
  • International Classification:
    A61B 1000
  • US Classification:
    128660
  • Abstract:
    A data acquisition head for an ultrasonic imaging system which employs a plurality of transducers is disclosed. The transducers are rotated in a liquid filled chamber at a constant rate, each about an axis perpendicular to its transmission axis. The transducers are sequentially activated as their transmission axes cross a semi-rigid membrane which is in contact with the body. The acoustic impedance of the liquid and membrane, and the thickness of the membrane, are matched to enhance transmission. In one embodiment, the membrane is one-half or a full wavelength thick and comprises a low density polyethylene and the liquid has an acoustic impedance approximately equal to that of the polyethylene.
  • Ultrasonic Imaging Apparatus Using A Coupling Fluid Mixture Of Propylene Oxide, Ethylene Oxide Derivative And Glycerine

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  • US Patent:
    44108265, Oct 18, 1983
  • Filed:
    Apr 12, 1982
  • Appl. No.:
    6/367766
  • Inventors:
    Albert S. Waxman - Los Gatos CA
    James F. Havlice - Los Altos CA
  • Assignee:
    Diasonics, Inc. - Milpitas CA
  • International Classification:
    H01L 4108
  • US Classification:
    310336
  • Abstract:
    A data acquisition head for an ultrasonic imaging system which employs a plurality of transducers is disclosed. The transducers are rotated in a liquid filled chamber at a constant rate, each about an axis perpendicular to its transmission axis. The transducers are sequentially activated as their transmission axes cross a semi-rigid membrane which is in contact with the body. The acoustic impedance of the liquid and membrane, and the thickness of the membrane, are matched to enhance transmission. In one embodiment, the membrane is one-half or a full wavelength thick and comprises a low density polyethylene and the liquid has an acoustic impedance approximately equal to that of the polyethylene.
  • Ultrasound Imaging System With Improved Scan Conversion

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  • US Patent:
    40580016, Nov 15, 1977
  • Filed:
    Aug 2, 1976
  • Appl. No.:
    5/710942
  • Inventors:
    Albert S. Waxman - Santa Clara CA
  • Assignee:
    G. D. Searle & Co. - Skokie IL
  • International Classification:
    G01N 2900
    A61B 1000
  • US Classification:
    73620
  • Abstract:
    In an improved system for medical imaging employing a transducer for transmitting and detecting ultrasonic vibrations, a digital scan converter accepts echo signals detected by the transducer and transducer position signals identifying the point of origin of the signals in a scanning plane transversely oriented relative to the body of the patient under study. The amplitudes of the echoes detected are stored at memory locations associated with the points of origin of the echoes. Peak detection analysis is performed on large echoes emanating from higher impedance tissue interfaces within the scanning plane, while cumulation and normalization analysis is performed on small echoes emanating from low impedance tissue interfaces within the scanning plane. Sensitivity to otherwise unobtainable image details, signal to noise ratio, and freedom from distortions is maximized, yet the improved system may be used.
Name / Title
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Phones & Addresses
Albert S. Waxman
Aw Ventures IV, A California Limited Partnership
525 University Ave, Palo Alto, CA 94301
Albert Waxman
Aw Ventures, A California Limited Partnership
233 Winding Way, Redwood City, CA 94062
Albert Waxman
Aw Ventures III, A California Limited Partnership
233 Winding Way, Redwood City, CA 94062

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Oceanside, California

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