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Claims for Patent: 6,876,872

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Claims for Patent: 6,876,872

Title: Power control apparatus of a foldable portable mobile terminal
Abstract:A power control apparatus in a foldable portable radio terminal which includes a main body, a sub-body, a key-pad including a power key on the main body, an external function key which can be key-input by a user even if the sub-body is shut on the main body is disclosed. The power control apparatus includes a first switch, a second switch, and a control unit for controlling the first and second switch according to powered-on/off state of the terminal. One end of each of the first and second switch is connected in common at a first node connected to the external function key and the other end of the first switch is connected to a first input end of the control unit, and the other end of the second switch and the power key are connected in common via a second node connected to a second input end of the control unit. According to the invention, the external function key (the automatic folder switch for example) as the power key is realized so that the user can power-on the terminal without opening the sub-body even in the powered-off state of the terminal, and the terminal keys can perform their own functions in the powered-off state of the terminal.
Inventor(s): Ko; Moon Jung (Suwon-shi, KR)
Assignee: Samsung Electronics Co., Ltd. (KR)
Application Number:09/841,990
Patent Claims: 1. A power control apparatus in a foldable portable radio terminal which includes a main body, a sub-body, a key-pad including a power key on the main body, an external function key which can be key-inputted by a user even if the sub-body is closed onto the main body, said power control apparatus comprising: a first switch; a second switch; and a control unit for controlling said first and second switches according to a powered-on/off state of the terminal; wherein one end of each of said first switch and said second switch is connected in common at a first node connected to the external function key and the other end of said first switch is connected to a first input end of said control unit, and the other end of said second switch and the power key are connected in common via a second node connected to a second input end of said control unit.

2. A power control apparatus in a foldable portable radio terminal according to claim 1, wherein said control unit controls said first switch open and said second switch closed in the powered-off state of the terminal; and controls said first switch closed and said second switch open in the powered-on state of the terminal.

3. A power control apparatus in a portable radio terminal which can be folded in an automatic and manual manner and includes a main body, a sub-body, a key-pad including a power key on the main body, and an automatic sub-body switch for automatic sub-body opening/closing in a position where a user can key-input even if the sub-body is closed onto the main body, said power control apparatus comprising: a first switch; a second switch; and a control unit for controlling said first and second switches according to a powered-on/off state of the terminal; wherein one end of each of said first switch and said second switch is connected in common at a first node connected to the automatic sub-body switch and the other end of said first switch is connected to a first input end of said control unit, and the other end of said second switch and the power key are connected in common at a second node connected to a second input end of said control unit.

4. A power control apparatus in a portable radio terminal according to claim 3, wherein said control unit controls said first switch open and said second switch closed in the powered-off state of the terminal; and controls said first switch closed and said second switch open in the powered-on state of the terminal.
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