发明授权
US07663338B2 Method and apparatus for handling a charging state in a mobile electronic device
有权
用于处理移动电子设备中的充电状态的方法和装置
- 专利标题: Method and apparatus for handling a charging state in a mobile electronic device
- 专利标题(中): 用于处理移动电子设备中的充电状态的方法和装置
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申请号: US11026443申请日: 2004-12-30
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公开(公告)号: US07663338B2公开(公告)日: 2010-02-16
- 发明人: Martin G. A. Guthrie , Dusan Veselic , Alexei Skarine , Michael F. Habicher
- 申请人: Martin G. A. Guthrie , Dusan Veselic , Alexei Skarine , Michael F. Habicher
- 申请人地址: CA Waterloo, Ontario
- 专利权人: Research In Motion Limited
- 当前专利权人: Research In Motion Limited
- 当前专利权人地址: CA Waterloo, Ontario
- 代理机构: Conley Rose, P.C.
- 代理商 J. Robert Brown, Jr.
- 主分类号: H02J7/00
- IPC分类号: H02J7/00 ; F21L4/00 ; H04N5/225 ; H01M2/10 ; H04B1/38
摘要:
In accordance with the teachings described herein, a method and apparatus for handling a charging state in a mobile electronic device is provided. A universal serial bus (USB) interface may be used for connecting the mobile device to a USB host. A processing device may be used to execute programs and to control operation of the mobile device. The processing device may be operable to receive an enumeration acknowledgement signal from the USB host via the USB interface and generate an enable signal upon receiving the enumeration acknowledgement signal. A rechargeable battery may be used to power the processing device. A battery charger may be used to receive a USB bus voltage from the USB interface and use the USB bus voltage to power the processing device and to charge the rechargeable battery. The battery charger may be further operable to receive a charge enable signal that enables and disables the battery charger from powering the processing device and charging the rechargeable battery. A timing circuit may be used to detect the USB bus voltage and to measure the passage of a pre-determined amount of time upon detecting the USB bus voltage. A battery charger enabling circuit may be used to generate the charge enable signal to control the battery charger, the battery charger enabling the battery charger if the timer has measured the passage of the pre-determined amount of time or the enable signal is received from the processing device.
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