Electricity: battery or capacitor charging or discharging – Means to identify cell or battery type
Reexamination Certificate
2004-10-07
2008-10-21
Nguyen, Matthew V (Department: 2838)
Electricity: battery or capacitor charging or discharging
Means to identify cell or battery type
C320S132000, C320S134000, C320S136000, C320S116000, C340S636100, C307S125000, C307S066000, C307S150000, C455S572000, C455S573000, C324S427000, C324S433000
Reexamination Certificate
active
07439706
ABSTRACT:
This system provides a method for determining whether ordinary battery cells, a battery pack, and/or a charger unit are attached to a portable electronic device. The system provides a center contact in a battery shaft that contacts a battery pack or a point on an individual battery and allows the device regulation unit to measure the voltage at that point. If the voltage is below a particular threshold, then the system determines that a battery pack may be inserted in the battery shaft and the portable electronic unit enters a battery pack mode. If the voltage is above the threshold voltage, then the portable electronic device enters the battery operation mode. If a voltage transition is sensed on the DEVICE START line, the portable electronic device determines that the charger is installed and the portable electronic device enters the appropriate mode.
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AKG Acoustics GmbH
Brinks Hofer Gilson & Lione
Nguyen Matthew V
Zhang Jue
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