Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Reexamination Certificate
2005-08-02
2005-08-02
Le, Huyen (Department: 2643)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having electrostatic element
C381S174000, C381S116000
Reexamination Certificate
active
06925187
ABSTRACT:
A sonic emitter, horn array with enhanced emitter-to-air acoustic coupling, with particular application to ultrasonic frequencies. The emitter comprises a plate support member having opposing first and second faces separated by an intermediate plate body. The plate body includes a plurality of conduits configured as an array of acoustic horns, with a small throat opening at the first face and an intermediate horn section which diverges to a broad mouth opening at the second face. An emitter membrane is positioned in direct contact with the first face and extends across the small throat openings. The emitter membrane is biased for (i) applying tension to the membrane extending across the throat openings and (ii) displacing the membrane into a non-planar configuration.
REFERENCES:
patent: 3136867 (1964-06-01), Brettell
patent: 3908098 (1975-09-01), Kawakami et al.
patent: 4297538 (1981-10-01), Massa
patent: 4322877 (1982-04-01), Taylor
patent: 5142511 (1992-08-01), Kanai et al.
patent: 5590212 (1996-12-01), Uryu et al.
patent: 6744899 (2004-06-01), Grunberg
Multi-Horn Matching Plate for Ultrasonic Transducers by Neville H. Fletcher and Suszanne Thwaites, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 2601, Australia.
Croft, III James J.
Norris Elwood G.
American Technology Corporation
Le Huyen
Thorpe North & Western LLP
LandOfFree
Horn array emitter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Horn array emitter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Horn array emitter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3479182