Telecommunications – Transmitter and receiver at separate stations – Near field
Reexamination Certificate
2004-12-01
2009-12-22
Le, Lana N (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Near field
C455S575600, C455S556100, C455S557000, C455S073000, C375S219000, C375S220000
Reexamination Certificate
active
07636547
ABSTRACT:
A reactance adjuster includes an electrode (123) inducing an electric-field in an electric-field transmittable medium (121), an adjusting signal generation section (13) outputting alternatingly a high level or a low level signal to a resonance section (7), an electric-field detection section (15) generating an electric signal based on the electric-field in the medium (121), a first electric-charge storing means (C1) storing electric-charge according to the electric signal when the section (13) outputs a high level signal, a second electric-charge storing means (C2) storing electric-charge according to the electric signal when the section (13) outputs a low level signal, a voltage comparator (10) outputting a predetermined signal based on a voltage difference between the storing means, a control section (19) outputting a constant voltage when the first and the second storing means (C1,C2) are storing electric-charge and a voltage based on a predetermined signal when the storing ends.
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Minotani Tadashi
Shibata Nobutarou
Shinagawa Mitsuru
Hsieh Ping Y
Kilpatrick & Stockton LLP
Le Lana N
Nippon Telegraph and Telephone Corporation
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