Special battery reserve of portable electronic devices for emergency use
First Claim
1. A portable telephone comprising:
- a battery detector arranged to detect a power supply of a battery serving as a power source of the portable telephone and produce battery power information Vd indicating a detected power value;
a memory comprising a program storage area which stores an application software including a special battery reserve for emergency use, and a data storage area which serves as a working memory for storing relevant information, including power setting information VS of the battery; and
a host controller arranged to control operations of the portable telephone, including to disconnect the power supply from the battery, when the battery power information Vd indicating the detected power value approaches the power setting information VS of the battery, and to re-connect the power supply from the battery for emergency use, when said special battery reserve is activated.
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Accused Products
Abstract
A portable electronic device such as a cellular or mobile telephone having a special battery reserve feature for emergency use is disclosed. Such a cellular or mobile telephone comprises a battery; a battery detector arranged to detect a battery power of the battery as a power source of the portable telephone and produce battery power information Vd indicating the detected power value; a memory comprising a program storage area which stores an application software including a special battery reserve for emergency use, and a data storage area which serves as a working memory for storing relevant information, including power setting information VS of the battery; and a host controller arranged to control operations of the telephone, including the special battery reserve for emergency use, when the battery power information Vd indicating the detected power value approaches the power setting information VS of the battery.
31 Citations
21 Claims
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1. A portable telephone comprising:
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a battery detector arranged to detect a power supply of a battery serving as a power source of the portable telephone and produce battery power information Vd indicating a detected power value;
a memory comprising a program storage area which stores an application software including a special battery reserve for emergency use, and a data storage area which serves as a working memory for storing relevant information, including power setting information VS of the battery; and
a host controller arranged to control operations of the portable telephone, including to disconnect the power supply from the battery, when the battery power information Vd indicating the detected power value approaches the power setting information VS of the battery, and to re-connect the power supply from the battery for emergency use, when said special battery reserve is activated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14)
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12. A portable telephone comprising:
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a first battery arranged to supply battery power for making regular telephone calls;
a second battery arranged independently from the first battery, to supply battery power for making emergency telephone calls;
a memory which stores an application software; and
a controller executed by said application software and arranged to control operations of the portable telephone, including using the battery power of said first battery for making regular telephone calls, and using the battery power of said second battery for making emergency calls.
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13. A method for reserving a special portion of a battery for emergency use in a portable telephone, said method comprising:
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detecting a power supply of a battery serving as a power source of the portable telephone and generating battery power information Vd indicating a detected power value;
when the battery power information Vd indicating the detected power value approaches the power setting information VS of the battery, disconnecting the power supply from the battery, and switching from a Normal Full Power State to an Emergency Power Reserve State indicating that the portable telephone is out of battery;
after the user has turned on the cellular telephone, re-connecting the power supply from the battery, and providing a visual display of user message to alert the user that the cellular telephone is in an Emergency Power Reserve Mode, and user message to ask the user whether the user desires an emergency call;
if the user does not desire to make an emergency call, automatically shutting off the power supply from the battery and returning to the Emergency Power Reserve State; and
alternatively, if the user desires to make an emergency call, returning to the Normal Full Power State to permit the user to make the emergency call.
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15. A portable telephone comprising:
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a battery detector arranged to detect a power supply of a battery and generate battery power information VD indicating a detected power value;
a memory comprising a program storage area which stores an application software including a special battery reserve for emergency use, and a data storage area which serves as a working memory for storing relevant information, including power setting information VS set by the user, via a key input unit;
an alarm generator arranged to generate an alarm or a vibration to alert the user of a lower battery power, when the battery power information VD indicating the detected power value approaches the power setting information VS of the battery; and
a switch arranged to disconnect or re-connect the power supply from the battery to a main circuit of the portable telephone; and
a host controller arranged to control operations of the portable telephone, including controlling the switch to disconnect the power supply from the battery when the battery power information Vd indicating the detected power value approaches the power setting information VS of the battery, and to re-connect the power supply from the battery for emergency use when said special battery reserve is activated. - View Dependent Claims (16, 17, 18, 19)
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20. A method of reserving a special portion of a battery for emergency use in a portable telephone, said method comprising:
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when a power supply of the battery approaches a predetermined level, disconnecting the power supply from the battery, and switching from a Normal Full Power State to an Emergency Power Reserve State indicating that the portable telephone is out of battery;
after the user has turned on the cellular telephone, re-connecting the power supply from the battery, and providing a visual display of user message to alert the user that the cellular telephone is in an Emergency Power Reserve Mode, and user message to ask the user whether the user desires an emergency call;
if the user does not desire to make an emergency call, automatically shutting off the power supply from the battery and returning to the Emergency Power Reserve State; and
alternatively, if the user desires to make an emergency call, returning to the Normal Full Power State to permit the user to make the emergency call. - View Dependent Claims (21)
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Specification