Title:
VOICE FILM HAVING MULTI-LAYER STRUCTURE FOR PLATE-TYPE SPEAKER
Document Type and Number:
WIPO Patent Application WO/2011/155750
Kind Code:
A3
Abstract:
The present invention relates to a plate-type speaker, more specifically, a voice film for a plate-type speaker, the film having a multi-layer structure. A voice film for plate-type speaker having a multi-layer structure of one embodiment of the present invention has a print circuit board (PCB) structure having a multi-layer structure, and forms Nth layer, N being a positive integer, by having formed a continuous spiral track-shape coil pattern on the surfaces of an uppermost PCB substrate, one or more middle-layer PCB substrates, and a lowermost PCB substrate, wherein the coil pattern is shorted through a via hole of the pattern starting point by N/2th layer of the neighboring PCB substrate, and is bonded with each of the pattern end points formed on the other neighboring PCB N/2th layer at the pattern end points.
More Like This:
| WO/2011/159720 | FOIL LAMINATE INTERMEDIATE AND METHOD OF MANUFACTURING |
Inventors:
KIM DONG-MAN (KR)
Application Number:
PCT/KR2011/004145
Publication Date:
March 01, 2012
Filing Date:
June 07, 2011
Export Citation:
Assignee:
EXELWAY INC (KR)
KIM DONG-MAN (KR)
KIM DONG-MAN (KR)
International Classes:
B32B15/08; H04R17/00
Foreign References:
| KR20050033763A | 2005-04-13 | |||
| KR20050027757A | 2005-03-21 | |||
| KR19990031210A | 1999-05-06 | |||
| KR20060029258A | 2006-04-05 |
Other References:
See also references of EP 2581219A4
Attorney, Agent or Firm:
PARK, Yang-ho et al. (Hansol-3cha 205,1597-1 Gwanyang-dong, Dongan-g, Anyang-si Gyeonggi-do 431-815, KR)
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Claims: