Title:
ELECTRONIC CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2005/119932
Kind Code:
A1
Abstract:
An electronic circuit capable of inhibiting a transmission coil, currently transmitting no signals, from interfering with communication in a case of realizing an inter-board communication by use of an inductive coupling. While a chip is not transmitting, a signal (Tx/bar(Rx)) is low, the output of a NOT (12) is high, the output of a NAND (13) is high, and the output of a NOR (14) is low, with the result that transistors (T3,T4) are turned off, placing a transmission coil (15) in an open state. In this way, the transmission coil (15) is inhibited from interfering with the change of the magnetic field and attenuating the transmitted signals.
Inventors:
KURODA TADAHIRO (JP)
MIZOGUCHI DAISUKE (JP)
MIURA NORIYUKI (JP)
SAKURAI TAKAYASU (JP)
KAWAGUCHI HIROSHI (JP)
MIZOGUCHI DAISUKE (JP)
MIURA NORIYUKI (JP)
SAKURAI TAKAYASU (JP)
KAWAGUCHI HIROSHI (JP)
Application Number:
PCT/JP2005/010029
Publication Date:
December 15, 2005
Filing Date:
June 01, 2005
Export Citation:
Assignee:
UNIV KEIO (JP)
KURODA TADAHIRO (JP)
MIZOGUCHI DAISUKE (JP)
MIURA NORIYUKI (JP)
SAKURAI TAKAYASU (JP)
KAWAGUCHI HIROSHI (JP)
KURODA TADAHIRO (JP)
MIZOGUCHI DAISUKE (JP)
MIURA NORIYUKI (JP)
SAKURAI TAKAYASU (JP)
KAWAGUCHI HIROSHI (JP)
International Classes:
H04B5/00; H04B5/02; (IPC1-7): H04B5/02
Foreign References:
| JPH09171541A | 1997-06-30 | |||
| JPH08149054A | 1996-06-07 |
Attorney, Agent or Firm:
Nakamura, Kazuo (Nakamura Bldg. 2F, 50-10, Nishikamata 7-chom, Ota-ku Tokyo 51, JP)
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