Battery type sensing method and device for sensing battery type
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United States of America Patent
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Jul 3, 2012
Grant Date -
Jul 9, 2009
app pub date -
Jan 7, 2008
filing date -
Jan 7, 2008
priority date (Note) -
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Abstract
A battery type detection approach is disclosed. In one embodiment, a method of detecting a battery type can include: receiving a signal from a battery module in a portable computing device; determining if the signal is in a first state for at least a first predetermined time before transitioning to a second state; determining if the signal transitions from the second state to the first state after a second predetermined time, and identifying the battery type in response thereto; and asserting an indication of the battery type when a third predetermined time period after the transition from the second state to the first state has occurred.
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