System and method for powering and charging a mobile communication device
First Claim
Patent Images
1. A mobile communications device, comprising:
- a processing device;
a rechargeable battery that is configured to supply power to the processing device;
a Universal Serial Bus (USB) interface that is configured to connect to a USB port via a USB cable; and
a charging subsystem coupled to the USB interface that receives power from the USB interface, and that is configured to charge the rechargeable battery with the power received from the USB interface.
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Abstract
A system for powering and charging a mobile communication device includes a processing device, a rechargeable battery, a Universal Serial Bus (USB) interface, and a charging subsystem. The rechargeable battery is configured to supply power to the processing device. The USB interface is configured to connect to a USB port via a USB cable. The charging subsystem is coupled to the USB interface, and is configured to charge the rechargeable battery using power received from the USB interface.
138 Citations
25 Claims
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1. A mobile communications device, comprising:
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a processing device;
a rechargeable battery that is configured to supply power to the processing device;
a Universal Serial Bus (USB) interface that is configured to connect to a USB port via a USB cable; and
a charging subsystem coupled to the USB interface that receives power from the USB interface, and that is configured to charge the rechargeable battery with the power received from the USB interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of charging a rechargeable battery in a device having a charging subsystem and a USB interface, the USB interface having Vbus and GND lines connected to the charging subsystem, the charging subsystem connected to the rechargeable battery, the method comprising the steps of:
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deriving power from the Vbus and GND lines at the charging subsystem; and
charging the rechargeable battery using the derived power using the charging subsystem. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method of charging a mobile communication device having a rechargeable battery and a charging subsystem, the mobile communication device connected via a unified data and power bus to a host system, the method comprising the steps of:
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obtaining a charge configuration from the unified bus;
applying the charge configuration to the charging subsystem; and
charging the rechargeable battery using power derived from the unified bus. - View Dependent Claims (22, 23, 24, 25)
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Specification