METHOD AND SYSTEM FOR OPERATING AND/OR CHARGING A BATTERY POWERED USB DEVICE BASED ON A USB PORT TYPE
First Claim
1. A method for bus interfacing, the method comprising:
- in a USB device comprising a power management IC and a multi-function IC, determining via a port type detection module in said multi-function IC, whether said USB device is attached to a standard host port or a charging port.
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Accused Products
Abstract
Aspects of a method and system for operating and/or charging a battery powered USB device based on a USB port type are provided. In this regard, in a USB device comprising a power management IC and a multi-function IC, a port type detection module in the multi-function IC may determine whether the USB device is attached to a standard host port or a charging port. Additionally, a power source in the power management IC, which may supply power to the port type detection module, may be enabled upon attachment of the USB device to a USB port and disabled subsequent to determination of port type. Also, one or more portions and/or functions of the power management IC may be configured based on the determined port type. Similarly, one or more portions and/or functions of the multi-function IC may be enabled or disabled based on the determined port type.
122 Citations
30 Claims
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1. A method for bus interfacing, the method comprising:
in a USB device comprising a power management IC and a multi-function IC, determining via a port type detection module in said multi-function IC, whether said USB device is attached to a standard host port or a charging port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for USB interfacing, the system comprising:
a USB device comprising a multi-function IC and a power management IC, wherein said multi-function IC comprises one or more circuits operable to determine whether said USB device is attached to a standard host port or a charging port. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
Specification