Variable resistance sensor with common reference leg

Details Variable resistance sensor with common reference leg Variable resistance sensor with common reference leg

2005-01-25

2005-01-25

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Volume or rate of flow

Thermal type

Reexamination Certificate

active

06845659

ABSTRACT:
A resistive bridge sensor circuit that includes a first resistive bridge circuit having a first variable resistance resistor and a second resistive bridge circuit having a second variable resistance resistor. The first and second resistive bridge circuits share at least a portion of a common reference leg that sets a resistance of a first and second variable resistors. The common reference leg or a portion of the common reference leg is alternately switchably connected to one of the first and second resistive bridge circuits.

REFERENCES:
patent: 4672997 (1987-06-01), Landis et al.
patent: 4686450 (1987-08-01), Pichat
patent: 4815280 (1989-03-01), Tujimura et al.
patent: 4843881 (1989-07-01), Hubbard
patent: 4984460 (1991-01-01), Isoda
patent: 5062446 (1991-11-01), Anderson
patent: 5129418 (1992-07-01), Shimomura et al.
patent: 5141021 (1992-08-01), Shimomura et al.
patent: 5279154 (1994-01-01), Vavra et al.
patent: 5347861 (1994-09-01), Satoh
patent: 5394755 (1995-03-01), Sudo et al.
patent: 5410912 (1995-05-01), Suzuki
patent: 5441076 (1995-08-01), Moriya et al.
patent: 5461913 (1995-10-01), Hinkle et al.
patent: 5660207 (1997-08-01), Mudd
patent: 5684245 (1997-11-01), Hinkle
patent: 5693880 (1997-12-01), Maginnis, Jr.
patent: 5711342 (1998-01-01), Kazama et al.
patent: 5741968 (1998-04-01), Arai
patent: 5765283 (1998-06-01), Mudd
patent: 5850850 (1998-12-01), Mudd
patent: 5865205 (1999-02-01), Wilmer
patent: 5911238 (1999-06-01), Bump et al.
patent: 5944048 (1999-08-01), Bump et al.
patent: 6044701 (2000-04-01), Doyle et al.
patent: 6216726 (2001-04-01), Brown et al.
patent: 6343617 (2002-02-01), Tinsley et al.
patent: 6404612 (2002-06-01), Pattantyus
patent: 6425287 (2002-07-01), Tominaga et al.
patent: 6446504 (2002-09-01), Maginnis, Jr.
patent: 6539792 (2003-04-01), Lull et al.
patent: 6575027 (2003-06-01), Larsen et al.
patent: 6595049 (2003-07-01), Maginnis, Jr. et al.
patent: 0 110 325 (1984-06-01), None
patent: 0 834 723 (1998-04-01), None
patent: WO 0104580 (2001-01-01), None
patent: WO 0104582 (2001-01-01), None
patent: WO 0104715 (2001-01-01), None
patent: WO 0104716 (2001-01-01), None
patent: WO 0104717 (2001-01-01), None
patent: WO 0104923 (2001-01-01), None
patent: WO 0161284 (2001-08-01), None
International Search Report mailed Nov. 25, 2003 in corresponding PCT Application PCT/US03/22337, filed Jul. 16, 2003.

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