Appeal No. 2001-2340
Application No. 09/141,707
Appellants’ Invention
The invention is described in the third paragraph of page 3
of the brief and in the paragraph bridging pages 3 and 4.
The Prior Art
In Figure 2, Cameron discloses a battery monitor and
capacity indicator that uses a sense cell 22 in addition to a
main battery 10 to determine main battery remaining capacity and
depletion condition. A parameter of the sense cell is related to
the main battery capacity so that the main battery will have a
minimum capacity remaining when the sense cell parameter reaches
a particular value or crosses a particular threshold. The sense
cell is a battery which is identical and of the same
manufacturing lot as the battery cell or cells in the main
battery pack. Utilizing a load 30, a current is drawn from the
sense cell that is larger than the current being drawn from the
main battery. When the sense cell is fully depleted, the main
battery will have a remaining capacity whose magnitude depends on
the relationship between the main battery current and the sense
cell current.
Kuo discloses an electrochemical cell 50 with an integrally
related state of charge indicator 60 comprising an electro-
chemically generated display. The state of charge indicator
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Last modified: November 3, 2007