Title:
SIGNAL PROCESSING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2002/067359
Kind Code:
A1
Abstract:
A signal processing circuit that makes separation of signals by switching unnecessary and makes it possible to achieve size reduction, power saving and circuit simplification. A first phase shifter (1) and a second phase shifter (3) have the function of converting input signals into signals whose phases are reversed from each other, and a first passband filter (2) and a second passband filter (4) have passband characteristics such that the center frequencies are close to each other.
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Inventors:
NAKAGAWA YUJI (JP)
MIYAMOTO KEIZOU (JP)
NITANI YASUO (JP)
FUJIURA HIDEAKI (JP)
MIYAMOTO KEIZOU (JP)
NITANI YASUO (JP)
FUJIURA HIDEAKI (JP)
Application Number:
PCT/JP2002/001393
Publication Date:
August 29, 2002
Filing Date:
February 18, 2002
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
SANYO ELECTRONIC COMPONENTS CO (JP)
NAKAGAWA YUJI (JP)
MIYAMOTO KEIZOU (JP)
NITANI YASUO (JP)
FUJIURA HIDEAKI (JP)
SANYO ELECTRONIC COMPONENTS CO (JP)
NAKAGAWA YUJI (JP)
MIYAMOTO KEIZOU (JP)
NITANI YASUO (JP)
FUJIURA HIDEAKI (JP)
International Classes:
H01P1/15; H01P1/18; H01P1/213; H03H7/46; H04B1/50; (IPC1-7): H01P1/213; H01P1/15; H03H7/46
Foreign References:
| JPH10270914A | 1998-10-09 | |||
| JPH09270604A | 1997-10-14 | |||
| JPH04196829A | 1992-07-16 |
Attorney, Agent or Firm:
Maruyama, Toshiyuki (Nakamiya 4-chome Asahi-ku Osaka-shi, Osaka, JP)
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