Shielded communication transducer
AssigneeTechnion Research & Development
InventorsMordechay Segev, Zvika Katz
Life of this patent
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Abstract
A system and method for detecting a sound originating from a body and enhancing signal-to-noise ratio with respect to noise originated outside the body is disclosed. The system comprises a light source for producing a quasi-monochromatic, spatially-coherent light beam; and interferometer for interfering alight beam originated from the source, incident upon the body and reflected from it, with a reference beam, which also originates from the light source; and a detector for detecting changes caused by motion of a least one interference fringe across the detector, and for generation a corresponding electric signal.
Claims20
A system for detecting a sound originating from a body and enhancing signal-to-noise ratio with respect to noise originated outside the body, the system comprising:
- a light source for producing a quasi-monochromatic, spatially-coherent light beam;
- an interferometer for interfering a light beam originated from the source, incident upon the body and reflected from it, with a reference beam, which also originates from the light source;
- and
- a detector for detecting changes caused by motion of at least one interference fringe across the detector, and for generating a corresponding electric signal.
A method for detecting a sound originating from a body and enhancing signal-to-noise ratio with respect to noise originated outside the body, the method comprising:
- directing a light beam from a light source producing a quasi-monochromatic, spatially-coherent light beam onto the body;
- collecting a reflected light from the body and interfering it with a reference beam that is also originated from the light source;
- detecting moving interference fringes of the interfering light beams by an optical detector detecting changes caused by motion of interference fringes across the detector, and for generating a corresponding electric signal.
Dependencies are inferred from the claim text.