PORT CONTROLLER WITH POWER CONTRACT NEGOTIATION CAPABILITY
First Claim
1. An electronic device port system, comprising:
- a first device configured to negotiate power supply contracts from a power source via a universal serial bus (USB) cable; and
a second device configured to negotiate power supply contracts from the power source via the USB cable when the first device is unable to negotiate power supply contracts from the power source,wherein the second device is configured to activate a switch after the second device negotiates a power supply contract with the power source, the switch configured to permit the provision of power from the power source to a battery system of the electronic device per the negotiated power supply contract.
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Accused Products
Abstract
At least some embodiments are directed to an electronic device port system comprising a first device configured to negotiate power supply contracts from a power source via a universal serial bus (USB) cable. The system also comprises a second device configured to negotiate power supply contracts from the power source via the USB cable when the first device is unable to negotiate power supply contracts from the power source. The second device is configured to activate a switch after the second device negotiates a power supply contract with the power source. The switch is configured to permit the provision of power from the power source to a battery system of the electronic device per the negotiated power supply contract.
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Citations
20 Claims
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1. An electronic device port system, comprising:
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a first device configured to negotiate power supply contracts from a power source via a universal serial bus (USB) cable; and a second device configured to negotiate power supply contracts from the power source via the USB cable when the first device is unable to negotiate power supply contracts from the power source, wherein the second device is configured to activate a switch after the second device negotiates a power supply contract with the power source, the switch configured to permit the provision of power from the power source to a battery system of the electronic device per the negotiated power supply contract. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system, comprising:
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a battery system; a DC-to-DC converter coupled to the battery system and configured to provide a rail voltage supply; a port manager powered by the rail voltage supply and configured to negotiate power contracts with a power supply on behalf of the system via a universal serial bus (USB) cable; and a port controller powered by the power supply via the USB cable and configured to negotiate power contracts with the power supply on behalf of the system via the USB cable when the port controller detects that the port manager is powered below a threshold level, the battery system is powered below another threshold level, or both. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method, comprising:
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using a device to negotiate power supply contracts from a power source via a data and power transmission cable; determining that the device is not receiving power meeting a minimum threshold; reviewing power supply options received from the power source via the data and power transmission cable; selecting one of the received power supply options; providing the power source with an indication of the selection; receiving power from the power source in accordance with the selection; and establishing an electrical pathway between the power source and a battery system. - View Dependent Claims (19, 20)
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Specification