发明授权
US08214667B2 Central processing unit start-up circuit of portable electronic devices
有权
便携式电子设备的中央处理单元启动电路
- 专利标题： Central processing unit start-up circuit of portable electronic devices
- 专利标题（中）： 便携式电子设备的中央处理单元启动电路
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申请号： US12605693申请日： 2009-10-26
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公开(公告)号： US08214667B2公开(公告)日： 2012-07-03
- 发明人: Wan-Ning Li , Ying-Zheng Li
- 申请人： Wan-Ning Li , Ying-Zheng Li
- 申请人地址： CN ShenZhen, Guangdong Province TW Tu-Cheng, New Taipei
- 专利权人： Shenzhen Futaihong Precision Industry Co., Ltd.,Chi Mei Communication Systems, Inc.
- 当前专利权人： Shenzhen Futaihong Precision Industry Co., Ltd.,Chi Mei Communication Systems, Inc.
- 当前专利权人地址： CN ShenZhen, Guangdong Province TW Tu-Cheng, New Taipei
- 代理机构： Altis Law Group, Inc.
- 优先权： CN200910302418 20090518
- 主分类号： G06F1/26
- IPC分类号： G06F1/26
摘要：
A central processing unit (CPU) start-up circuit for controlling a CPU of a portable electronic device includes a power management unit (PMU) connected to the CPU, an awaking circuit connected to the CPU, and a main power supply connected to the CPU, the PMU and the awaking circuit. The main power supply provides working electric power to the CPU, the PMU detects the status of the main power supply and generates a status signal (SS) according to the detecting result, the awaking circuit detects the status of the main power supply and generates a waking signal (WS) according to the detecting result, and the SS and the WS are both transmitted to the CPU to cooperatively control the CPU to be switched on and switched off.
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