Multifunctional charger system and method
DC CAFCFirst Claim
1. A mobile device, comprising:
- a USB communication path; and
a charging subsystem enabled to draw current unrestricted by at least one predetermined USB Specification limit, said enablement being responsive to an abnormal USB data condition detected at said USB communication path.
4 Assignments
Litigations
5 Petitions
Reexamination
Accused Products
Abstract
An adapter for providing a source of power to a mobile device through an industry standard port is provided. In accordance with one aspect of the invention, the adapter comprises a plug unit, a power converter, a primary connector, and an identification subsystem. The plug unit is operative to couple the adapter to a power socket and operative to receive energy from the power socket. The power converter is electrically coupled to the plug unit and is operable to regulate the received energy from the power socket and to output a power requirement to the mobile device. The primary connector is electrically coupled to the power converter and is operative to couple to the mobile device and to deliver the outputted power requirement to the mobile device. The identification subsystem is electrically coupled to the primary connector and is operative to provide an identification signal.
54 Citations
24 Claims
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1. A mobile device, comprising:
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a USB communication path; and a charging subsystem enabled to draw current unrestricted by at least one predetermined USB Specification limit, said enablement being responsive to an abnormal USB data condition detected at said USB communication path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A mobile device, comprising:
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a USB communication path and a USB VBUS line; and a charging subsystem enabled to draw power unrestricted by at least one predetermined USB Specification limit, said enablement being responsive to said USB VBUS line being externally powered and an abnormal USB data condition detected at said USB communication path. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of charging a mobile device having a charging subsystem and a USB communication path, comprising:
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upon detection of an identification signal on said path, drawing current in excess of at least one USB Specification defined limit; and if said identification signal is not detected, drawing current in accordance with said USB Specification. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A mobile device, comprising:
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a USB communication path including a D+ line and a D−
line; anda charging subsystem enabled to draw current in excess of 500 mA, said enablement being responsive to signals in excess of 2V detected at each of said D+ and D−
lines and said enablement occurring without USB enumeration.
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Specification