Title:
ACOUSTIC WAVE TOUCH DETECTING APPARATUS
Document Type and Number:
WIPO Patent Application WO2005050546
Kind Code:
A3
Abstract:
A Flexible Printed Circuit (FPC) (4) is constructed of two FPC branches (4a,4b), and a connection line (4c) that connects to a controller (6). Printed wiring of the connection line includes ten printed wires (64a,64b,64c,64d,64e,64f,64g,64h,64i,64j). The central four printed wires are signal reception wires (64d,64e,64f,64g), which are connected to two converters (sensors) (12,14). Grounding wires (64c,64h) are provided on both sides of the four signal reception wires. Two outer signal wires (64b,64i) are provided adjacent to the grounding wires, respectively toward the outsides thereof. Further, two more grounding wires (64a,64j) are provided adjacent to the outer signal wires, respectively on the outsides thereof. This construction results in shielding of all of the signal wires. This relationship is maintained in the FPC branches as well.
Inventors:
TANAKA YOSHIKAZU
SCHARFF DANIEL
DEWS CHRISTOPHER
SCHARFF DANIEL
DEWS CHRISTOPHER
Application Number:
PCT/US2004/037563
Publication Date:
October 27, 2005
Filing Date:
November 10, 2004
Export Citation:
Assignee:
ELO TOUCHSYSTEMS INC (US)
International Classes:
G06F3/033; H05K1/02; H05K1/11; (IPC1-7): G06F3/033
Domestic Patent References:
| WO2004044726A1 | 2004-05-27 |
Foreign References:
| US5739479A | 1998-04-14 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05)
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 10 31 October 1997 (1997-10-31)
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 10 31 October 1997 (1997-10-31)
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