Speaker for mobile communication terminal

Details Speaker for mobile communication terminal Speaker for mobile communication terminal

2011-01-11

2011-01-11

Ni, Suhan (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S333000, C381S388000

Reexamination Certificate

active

07869617

ABSTRACT:
A speaker for a mobile communication terminal is provided. The speaker with an upper case, a frame, a vibration plate, a voice coil, a yoke, a magnet, a top plate and a printed circuit board (PCB) includes a housing for accommodating the vibration plate, the voice coil, the yoke, the magnet and the top plate, the housing being formed by coupling the upper case and the frame, a sound emission hole formed in one side surface of the housing, a sound pressure adjustment hole formed by penetrating the upper case, and a resonance space formed in an outer circumference of the upper case. In the speaker, it is possible to elevate degree of space utilization in the mobile communication terminal, to easily manufacture a mobile communication terminal which parallels the trend toward miniaturization, slimness and lightness, to improve the characteristics of low frequency sound, and thus to improve sound quality.

REFERENCES:
patent: 5974157 (1999-10-01), Tajima et al.
patent: 6023518 (2000-02-01), Kuwabara et al.
patent: 6370257 (2002-04-01), Bleim et al.
patent: 6628800 (2003-09-01), Tajima
patent: 7142686 (2006-11-01), Furuya et al.
patent: 7324658 (2008-01-01), Kobayashi
patent: 7567680 (2009-07-01), Murray et al.
patent: 2003/0003945 (2003-01-01), Saiki et al.
patent: 1262592 (2000-08-01), None
patent: 1420672 (2003-05-01), None
patent: 1 389 032 (2004-02-01), None
patent: 2 408 405 (2005-05-01), None
patent: WO 2004/030402 (2004-04-01), None
Kinsler, “Resonators and Filters”, Fundamental of Acoustics, Jan. 1, 1962, pp. 186-216, XP-002065613.

Affiliated with

Also associated with

Rating

Speaker for mobile communication terminal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Speaker for mobile communication terminal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speaker for mobile communication terminal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2683769