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Patent Agency Ranking
公开(公告)号：AU747458B2
公开(公告)日：2002-05-16
申请号：AU3307299
申请日：1999-02-22
Applicant: QUALCOMM INC
Inventor： BALL SCOTT R , PETERZELL PAUL E
Abstract: A portable phone has an internal battery and an external battery pack is releasably attachable to the phone. A control unit in the phone controls connection of the respective batteries to a phone power input, depending on the detection of the external battery voltage. Whenever an external battery is present with a voltage above a predetermined minimum value, the external battery will be connected to the phone power input to provide power to operate the phone, so that the internal battery lifetime is extended. When the external battery voltage falls below the minimum value, or the external battery is removed, the unit automatically switches to internal battery power, so that the external battery can be changed without interrupting power supply to the phone, if the phone is on or during a call.
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公开(公告)号：AU3307299A
公开(公告)日：1999-09-06
申请号：AU3307299
申请日：1999-02-22
Applicant: QUALCOMM INC
Inventor： BALL SCOTT R , PETERZELL PAUL E
Abstract: A portable phone has an internal battery and an external battery pack is releasably attachable to the phone. A control unit in the phone controls connection of the respective batteries to a phone power input, depending on the detection of the external battery voltage. Whenever an external battery is present with a voltage above a predetermined minimum value, the external battery will be connected to the phone power input to provide power to operate the phone, so that the internal battery lifetime is extended. When the external battery voltage falls below the minimum value, or the external battery is removed, the unit automatically switches to internal battery power, so that the external battery can be changed without interrupting power supply to the phone, if the phone is on or during a call.
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公开(公告)号：CA2321212A1
公开(公告)日：1999-08-26
申请号：CA2321212
申请日：1999-02-22
Applicant: QUALCOMM INC
Inventor： BALL SCOTT R , PETERZELL PAUL E
Abstract: A portable phone has an internal battery and an external battery pack is releasably attachable to the phone. A control unit in the phone controls connection of the respective batteries to a phone power input, depending on the detection of the external battery voltage. Whenever an external battery is present with a voltage above a predetermined minimum value, the external battery will be connected to the phone power input to provide power to operate the phone, so that the internal battery lifetime is extended. When the external battery voltage falls below the minimum value, or the external battery is removed, the unit automatically switches to internal battery power, so that the external battery can be changed without interrupting power supply to the phone, if the phone is on or during a call.
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公开(公告)号：BR9908052A
公开(公告)日：2002-06-11
申请号：BR9908052
申请日：1999-02-22
Applicant: QUALCOMM INC
Inventor： BALL SCOTT R , PETERZELL PAUL E
Abstract: A portable phone has an internal battery and an external battery pack is releasably attachable to the phone. A control unit in the phone controls connection of the respective batteries to a phone power input, depending on the detection of the external battery voltage. Whenever an external battery is present with a voltage above a predetermined minimum value, the external battery will be connected to the phone power input to provide power to operate the phone, so that the internal battery lifetime is extended. When the external battery voltage falls below the minimum value, or the external battery is removed, the unit automatically switches to internal battery power, so that the external battery can be changed without interrupting power supply to the phone, if the phone is on or during a call.
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公开(公告)号：ID27309A
公开(公告)日：2001-03-22
申请号：ID20001850
申请日：1999-02-22
Applicant: QUALCOMM INC
Inventor： BALL SCOTT R , PETERZELL PAUL E
Abstract: A portable phone has an internal battery and an external battery pack is releasably attachable to the phone. A control unit in the phone controls connection of the respective batteries to a phone power input, depending on the detection of the external battery voltage. Whenever an external battery is present with a voltage above a predetermined minimum value, the external battery will be connected to the phone power input to provide power to operate the phone, so that the internal battery lifetime is extended. When the external battery voltage falls below the minimum value, or the external battery is removed, the unit automatically switches to internal battery power, so that the external battery can be changed without interrupting power supply to the phone, if the phone is on or during a call.
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