Audio earpiece for wideband telephone handsets

Telephonic communications – Terminal – Having loudspeaking conversation capability

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C379S431000, C379S433020

Reexamination Certificate

active

07352859

ABSTRACT:
A method of manufacturing a telephony earpiece is provided. The method includes providing a speaker diaphragm and constraining the speaker diaphragm using a cap to provide a thin cavity between the cap and the diaphragm. The first resonance peak of the diaphragm/cavity system is damped by a first slow leak in the cap. The frequency response is built up using a rear resonator in the cap and the high frequency end response is enhanced using a front resonator on an opposite side of said diaphragm as said cap. Positioning of these resonator holes is an important factor. The earpiece is tuned using a second leak to adjust amplitude of low frequency end response.

REFERENCES:
patent: 4395597 (1983-07-01), Suzuki et al.
patent: 5058154 (1991-10-01), Andersen
patent: 5717753 (1998-02-01), Birmanns
patent: 5729605 (1998-03-01), Bobisuthi et al.
patent: 5790679 (1998-08-01), Hawker et al.
patent: 5953414 (1999-09-01), Abraham et al.
patent: 6282287 (2001-08-01), Lin
patent: 6324284 (2001-11-01), Hawker et al.
patent: 6438227 (2002-08-01), Kretsch
patent: 6473625 (2002-10-01), Williams et al.
patent: 6493456 (2002-12-01), Hansson
patent: 6668063 (2003-12-01), Cimaz et al.
patent: 6704429 (2004-03-01), Lin
patent: 6785395 (2004-08-01), Arneson et al.
patent: 6922471 (2005-07-01), Marqvardsen et al.
patent: 2002/0136398 (2002-09-01), Dufosse et al.
patent: 2665045 (1992-01-01), None
patent: 61139200 (1986-06-01), None
patent: WO 01/33904 (2001-05-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Audio earpiece for wideband telephone handsets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Audio earpiece for wideband telephone handsets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Audio earpiece for wideband telephone handsets will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2789132

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.