Piezo-electric speaker capsule for telephone handset

Details Piezo-electric speaker capsule for telephone handset Piezo-electric speaker capsule for telephone handset

1997-11-10

1999-09-14

Wolinsky, Scott

Telephonic communications

Terminal

Housing or housing component

379428, 379434, 381190, H04M 103

Patent

active

059534141

ABSTRACT:
A telephone handset includes a housing containing an earpiece part including a piezo-electric disk joined to an electrically conductive support disk, the edge of the support disk being clamped between two holding parts and separating a rear volume from a front volume. The rear volume is delimited by the combination of the piezo-electric disk and its support disk and by a rear wall facing this combination and a circular lateral wall, the rear wall and the lateral wall constituting a rear part with micro-leaks to constitute with the rear volume an acoustic damper device. The front volume, on the other side of the aforementioned combination constitutes, with holes in a wall of the front volume facing the latter combination, a Helmoltz resonator. The housing further contains a board supporting electronic components in direct contact with the rear wall of the rear volume.

REFERENCES:
patent: 3952159 (1976-04-01), Schott
patent: 4006371 (1977-02-01), Quirke
patent: 4990816 (1991-02-01), Causse et al.
patent: 5081674 (1992-01-01), Wijas et al.
patent: 5195142 (1993-03-01), D'Avolio et al.
patent: 5201069 (1993-04-01), Barbolak
patent: 5729605 (1998-03-01), Bobisuthi et al.
patent: 5784340 (1998-07-01), Kanai
patent: 5790679 (1998-08-01), Hawker et al.
Patent Abstracts of Japan, vol. 010, No. 069 (E-389), Mar. 18, 1986 corresponding to JP 60 218988 A (Matsushitq Denki Sangyo) dated Nov. 1, 1985.

Affiliated with

Also associated with

Rating

Piezo-electric speaker capsule for telephone handset does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Piezo-electric speaker capsule for telephone handset, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piezo-electric speaker capsule for telephone handset will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1517777