Title:
KEY INPUT DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2014/136505
Kind Code:
A1
Abstract:
A coil antenna (10) is disposed on the inner face of a prescribed keytop (1) among key input devices. A power supply coil (20) which is magnetically coupled to the coil antenna, and an RFIC (40), are mounted upon a substrate (50) whereupon key switches are retained. NFC is made possible by bringing a device comprising NFC close to the keytop (1). It becomes possible to read an RFID tag by bringing the RFID tag close to the keytop (1). Thus, a key input device and an electronic apparatus are configured without disposing an antenna on the exterior of a casing, and which are not prone to being affected by a casing of an electronic apparatus for embedding.
Inventors:
IKEDA NAOTO (JP)
HSIEH JERRY (JP)
HSIEH JERRY (JP)
Application Number:
PCT/JP2014/052022
Publication Date:
September 12, 2014
Filing Date:
January 30, 2014
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
G06F3/02; H04B5/02
Foreign References:
| JP2012256244A | 2012-12-27 | |||
| JP2007256354A | 2007-10-04 | |||
| JP2006039508A | 2006-02-09 |
Attorney, Agent or Firm:
Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
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