Wave transmission lines and networks – Coupling networks – Balanced to unbalanced circuits
Reexamination Certificate
2005-05-31
2005-05-31
Summons, Barbara (Department: 2817)
Wave transmission lines and networks
Coupling networks
Balanced to unbalanced circuits
C333S026000, C333S193000, C333S195000, C330S275000, C330S301000
Reexamination Certificate
active
06900705
ABSTRACT:
A balanced high-frequency device is constituted by a balanced device and a phase circuit. The input side of the balanced device is connected to an input terminal IN serving as an unbalanced input/output terminal and the output side of it is connected to output terminals OUT1and OUT2serving as balanced input/output terminals. Moreover, the phase circuit is connected between the output terminals.
REFERENCES:
patent: 2165086 (1939-07-01), Alford
patent: 3761831 (1973-09-01), Foerster
patent: 5077543 (1991-12-01), Carlile
patent: 5633614 (1997-05-01), Decramer
patent: 5809409 (1998-09-01), Itoh et al.
patent: 6573802 (2003-06-01), Straub
patent: 6713940 (2004-03-01), Takamine
patent: 2004/0077325 (2004-04-01), Takamine
patent: 2004/0080383 (2004-04-01), Takamine
patent: 2004/0180633 (2004-09-01), Nakatani et al.
patent: 902 397 (1954-01-01), None
patent: 1 111 777 (2001-06-01), None
patent: 06-268451 (1994-09-01), None
patent: 2001-144574 (2001-05-01), None
patent: 2001-308672 (2001-11-01), None
patent: 2002-368641 (2002-12-01), None
patent: 2004-112594 (2004-04-01), None
patent: 2004-166213 (2004-06-01), None
patent: 2004-215244 (2004-07-01), None
patent: WO 02/23719 (2002-03-01), None
Japanese Office Action for Application No. 2003-066389, dated Aug. 10, 2004.
European Search Report for EP 03 00 5837, dated Jul. 18, 2003.
Van B Roberts W, “A Neglected Form of Balun”, QST Amateur Radio, American Radio Relay League Inc. Newington, US, vol. 53, No. 4, Apr. 1, 1969, p. 48.
Ishizaki Toshio
Nakamura Hiroyuki
Nakatani Toshifumi
Matsushita Electric - Industrial Co., Ltd.
RatnerPrestia
Summons Barbara
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