Sound transducer and method having light detector for detecting

Details Sound transducer and method having light detector for detecting Sound transducer and method having light detector for detecting

1997-05-08

1999-11-30

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

381172, H04B 1002

Patent

active

059952601

ABSTRACT:
Transducer circuitry, and an associated method, converts acoustic signals into electrical signals. The transducer circuitry includes a diaphragm which is positioned to receive acoustic signals, such as voice signals. Displacement of the diaphragm responsive to reception of the acoustic signals is detected by directing light energy towards the diaphragm and detecting characteristics of the light energy reflected off of the diaphragm. Changes in the characteristics of the light energy are determinative of the displacement of the diaphragm and, in turn, values of the acoustic signals received by the diaphragm. When embodied in a radiotelephonic device, the diaphragm can be positioned at a location best to detect voice signals generated by a user without the need to position electrical leads to extend to the diaphragm, or a winding positioned thereabout, to detect displacement of the diaphragm.

REFERENCES:
patent: 3286032 (1966-11-01), Baum
patent: 4016556 (1977-04-01), Fulenwider
patent: 4224482 (1980-09-01), Lese et al.
patent: 4422182 (1983-12-01), Kenjyo
patent: 5262884 (1993-11-01), Buchholz
patent: 5333205 (1994-07-01), Bogut et al.
Standard Search Report for RS 100280 US Completed on Apr. 21, 1998, Apr. 23, 1998, EPX.

Affiliated with

Also associated with

Rating

Sound transducer and method having light detector for detecting does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sound transducer and method having light detector for detecting , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound transducer and method having light detector for detecting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1680445