Invention Grant
US08352644B2 Apparatus and methods for USB connection in a multi-processor device
有权
多处理器设备中USB连接的装置和方法
- Patent Title: Apparatus and methods for USB connection in a multi-processor device
- Patent Title (中): 多处理器设备中USB连接的装置和方法
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Application No.: US12950483Application Date: 2010-11-19
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Publication No.: US08352644B2Publication Date: 2013-01-08
- Inventor: Igor Malamant , Raghavendar Bhavansikar , Sergio Kolor
- Applicant: Igor Malamant , Raghavendar Bhavansikar , Sergio Kolor
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Stanton Braden
- Main IPC: G06F3/00
- IPC: G06F3/00

Abstract:
Disclosed are apparatus and methods for use in a USB device with multiple processors, allowing shared USB connectivity in the device. The disclosed apparatus and methods allow selective coupling of a first processor to a USB port of the device or to a USB hub operable to route a plurality of USB connections including connection of a second processor to the port. Providing selective coupling of the processors to the port by switching the coupling of the first processor and selectively powering the hub on and off for selective coupling of the second processor, thereby selectively enabling tethered networking such as wireless networking, affords increased power savings in the device. Furthermore, default coupling of the first processor to the port allows for USB battery charger detection, or direct connectivity to USB peripheral devices, as well as providing programming capability via the default coupling of the port to the first processor.
Public/Granted literature
- US20110145445A1 APPARATUS AND METHODS FOR USB CONNECTION IN A MULTI-PROCESSOR DEVICE Public/Granted day:2011-06-16
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