Title:
遮蔽通信変換器
Document Type and Number:
Japanese Patent JP2009512232
Kind Code:
A
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.
Inventors:
Segev, Mordecai
Cuts, Zuvika
Cuts, Zuvika
Application Number:
JP2008515372A
Publication Date:
March 19, 2009
Filing Date:
December 07, 2005
Export Citation:
Assignee:
Technion Research and Development Limited
International Classes:
H04R23/00; H04R1/00
Domestic Patent References:
| JPH09172479A | 1997-06-30 | |||
| JP2005118248A | 2005-05-12 | |||
| JPS5850899A | 1983-03-25 | |||
| JPH01231500A | 1989-09-14 | |||
| JPH10308998A | 1998-11-17 | |||
| JP2003532478A | 2003-11-05 | |||
| JP2005049876A | 2005-02-24 |
Foreign References:
| WO2004021738A1 | 2004-03-11 | |||
| US7128714B1 | 2006-10-31 |
Attorney, Agent or Firm:
▲吉▼川 俊雄