Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
RADIO COMMUNICATION DEVICE
Document Type and Number:
Japanese Patent JP2010068379
Kind Code:
A
Abstract:

To provide a radio communication device capable of performing quick sensitivity improvement processing while generating a cancellation signal with low voltage and easy configuration.

A distributor 161 distributes a sending signal supplied to an antenna 20, generates a cancellation signal while using a level adjuster 164 and a phase adjuster 165 so as to adjust the level and phase of a distribution signal, and compounds with a received signal from the antenna 20 using a synthetic device 163. Thus, while the level and the phase of the cancellation signal are adjusted by the level adjuster 164 and the phase adjuster 165, the level of the signal measured by the level measuring instrument 17 is compared with a predetermined threshold. Further, the adjustment of the distribution signal is suspended, on the basis of the comparison result.


Inventors:
KAWAGUCHI TAKESHI
Application Number:
JP2008234402A
Publication Date:
March 25, 2010
Filing Date:
September 12, 2008
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOSHIBA TEC KK
International Classes:
G06K7/10; G06K17/00; H04B1/40; H04B1/59; H04B5/02
Domestic Patent References:
JP2006014072A2006-01-12
JP2006203469A2006-08-03
JP2008005448A2008-01-10
JP2002076978A2002-03-15
JPH02152306A1990-06-12
JPS54149510A1979-11-22
Attorney, Agent or Firm:
Takehiko Suzue
Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Tetsuya Kazama
Katsumura Hiro
Shoji Kawai
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen