Invention Grant
US08359407B2 Method and device for activating functions of a powered-off device via a serial data bus interface
有权
通过串行数据总线接口激活断电设备的功能的方法和设备
- Patent Title: Method and device for activating functions of a powered-off device via a serial data bus interface
- Patent Title (中): 通过串行数据总线接口激活断电设备的功能的方法和设备
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Application No.: US12443180Application Date: 2006-09-26
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Publication No.: US08359407B2Publication Date: 2013-01-22
- Inventor: Achim Van Bebber
- Applicant: Achim Van Bebber
- Applicant Address: FI Espoo
- Assignee: Nokia Corporation
- Current Assignee: Nokia Corporation
- Current Assignee Address: FI Espoo
- Agency: Harrington & Smith
- International Application: PCT/IB2006/002661 WO 20060926
- International Announcement: WO2008/038057 WO 20080403
- Main IPC: G06F3/00
- IPC: G06F3/00
Abstract:
A method and device are provided for activating certain functions of a powered-off device having a serial data bus interface when it is attached to a powered device via the serial bus interface. On detection of a voltage on the power line of the serial bus, the processor of the device is booted in a special operation mode, wherein certain functions of the serial data bus interface can be used without powering the complete device. The device may then be enumerated by the attached host device and for example allow access to its memory unit or use the power signal on the serial bus interface for battery charging.
Public/Granted literature
- US20100281183A1 METHOD AND DEVICE FOR ACTIVATING FUNCTIONS OF A POWERED-OFF DEVICE VIA A SERIAL DATA BUS INTERFACE Public/Granted day:2010-11-04
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