Electricity: battery or capacitor charging or discharging – Battery or cell discharging – With charging
Reexamination Certificate
2007-07-06
2010-02-23
Tso, Edward (Department: 2858)
Electricity: battery or capacitor charging or discharging
Battery or cell discharging
With charging
C320S162000, C320S163000, C361S086000, C361S091100, C361S111000
Reexamination Certificate
active
07667435
ABSTRACT:
A secondary battery protection circuit may include an over voltage detector circuit configured to monitor a voltage level of an associated cell of a rechargeable battery and provide an output signal to a switch in response to a comparison of the voltage level of the cell to an over voltage threshold level. The switch may be coupled between the rechargeable battery and a DC power source and capable of moving between conducting and non-conducting states. The switch may also be responsive to the output signal to protect the rechargeable battery if the voltage level of said cell is greater than the over voltage threshold level for a time interval less than or equal to a transient time interval.
REFERENCES:
patent: 5517379 (1996-05-01), Williams et al.
patent: 5539299 (1996-07-01), Fernandez et al.
patent: 5789902 (1998-08-01), Abe et al.
patent: 6118253 (2000-09-01), Mukainakano et al.
patent: 6331763 (2001-12-01), Thomas et al.
patent: 6888355 (2005-05-01), Kitazawa et al.
patent: 0181112 (1986-03-01), None
patent: 2292845 (1996-03-01), None
patent: S61221539 (1986-10-01), None
patent: 08079982 (1996-03-01), None
patent: 09289738 (1997-04-01), None
patent: 09130988 (1997-05-01), None
patent: 11178222 (1999-07-01), None
patent: 200069689 (2000-03-01), None
patent: 2000069689 (2000-03-01), None
Japanese Office Action dated Nov. 25, 2008 issued in related Japanese Patent Application No. 2005090074.
English translation of related Chinese Office Action dated Mar. 9, 2007, 5 pages.
English language translation of Taiwanese Office Action dated May 26, 2006 issued in related Taiwanese Patent Application No. 094104237.
Decision of Rejection issued in Japanese Patent Application No. 2005-090074 dated Aug. 4, 2009.
Grossman Tucker Perreault & Pfleger PLLC
Muralidar Richard V
O2Micro International Limited
Tso Edward
LandOfFree
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