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  • Method, system and device for tissue characterization
    Publication number: 20050065426
    Abstract: A method of characterizing a tissue present in a predetermined location of a body of a subject, the method comprising: generating mechanical vibrations at a position adjacent to the predetermined location, the mechanical vibrations are at a frequency ranging from 10 Hz to 10 kHz; scanning the frequency of the mechanical vibrations; and measuring a frequency response spectrum from the predetermined location, thereby characterizing the tissue.
    Type: Application
    Filed: August 19, 2004
    Publication date: March 24, 2005
    Inventors: Yariv Porat, Itzhak Porat, Daniel Shach
  • Method, system and device for tissue characterization
    Publication number: 20030220556
    Abstract: A method of characterizing a tissue present in a predetermined location of a body of a subject, the method comprising: generating mechanical vibrations at a position adjacent to the predetermined location, the mechanical vibrations are at a frequency ranging from 10 Hz to 10 kHz; scanning the frequency of the mechanical vibrations; and measuring a frequency response spectrum from the predetermined location, thereby characterizing the tissue.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 27, 2003
    Applicant: Vespro Ltd.
    Inventors: Yariv Porat, Itzhak Porat, Daniel Shach
  • Method and system for power generation from humid air
    Patent number: 6057606
    Abstract: A system for the generation of power from an air flow is disclosed, comprising means for the condensation of air by spraying water at high altitude in the open, and at least one wind turbine for the generation of electric power, located substantially at Earth surface level. Condensation of the air at high altitudes generates a downwardly air flow, and said wind turbine is actuated by said air flow to produce electric energy.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: May 2, 2000
    Assignee: Armament Development Authority, Ministry of Defence, The State of Israel
    Inventor: Itzhak Porat
  • Two axis rate gyroscope
    Patent number: 4930365
    Abstract: A gymballess, two axis rate gyroscope in which an inertia rotor is keyed on the electric motor shaft. The motor shaft comprises a flexible part (flexure shaft) adapted to flex upon precession of the inertia rotor in consequence of an angular velocity input around either of two axes normal to each other and both normal to the rotor spin axis, and an end portion extending beyond the inertia rotor in a direction away from the electric motor (delfector). The gyroscope further comprises a non-contacting measuring device in association with the deflector for detecting any deflection thereof.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: June 5, 1990
    Inventors: Itzhak Porat, Jehuda Rosenberg, Ehud Netzer, Yishai Netzer
  • Apparatus and method for determining the rate of rotation of a moving body
    Patent number: 5189913
    Abstract: An apparatus and method for determining the rate of rotation of a body rotating with an angular velocity .omega. about a first axis. The apparatus comprises a housing adapted to be fixed to the body so as to rotate with the angular velocity .omega. about the first axis and a mechanical system within the housing having more than two degrees of freedom. Electromagnetic drive coils are provided for applying a forced vibration to the mechanical system about a second axis substantially perpendicular to the first axis, thereby producing a Coriolis response along a third axis mutually perpendicular to the first and second axes, the forced vibration having a predetermined magnitude and a frequency which is constrained to lie within a predetermined range such that there is produced a coupling between the degrees of freedom whereby the magnitude of the Coriolis response is substantially insensitive to frequency.
    Type: Grant
    Filed: October 17, 1991
    Date of Patent: March 2, 1993
    Assignee: The State of Israel, Ministry of Defence, Rafael Armament Development Authority
    Inventors: Ehud Netzer, Itzhak Porat
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