Intelligent system and method for universal bus communication and power
First Claim
1. A bus hub for connection via a serial bus to a serial bus host hub, the bus hub comprising:
- a serial bus hub having a connector to a power supply, the serial bus hub also receiving power from the serial bus host hub;
a bus controller coupled to the serial bus hub; and
a switch coupled to the bus controller and to the power supply, wherein the switch switches the bus hub between being powered by the power supply and being powered by the power from the serial bus host hub.
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Accused Products
Abstract
A bus hub for connection via a serial bus to a serial bus host hub includes a connector to a power supply, a bus controller and a switch coupled to the bus controller and to the power supply. The switch switches the bus hub between being powered by the power supply and being powered by the power from the serial bus host hub by switching the mode of operation between self-powered mode and bus-powered mode. A system for controlling communication and power in a serial bus includes a serial bus hub for detachably coupling at least one peripheral to a computer system, and a serial bus host hub capable of delivering power to the serial bus hub. The system also includes a power supply coupled to the serial bus hub that delivers power to the serial bus hub. The system also includes a bus controller that receives signals from the computer system through the serial bus, and receiving signals from the serial bus hub. The system also includes a switch that switches the serial bus hub between being powered by the power supply and being powered by the power from a serial bus host hub.
90 Citations
31 Claims
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1. A bus hub for connection via a serial bus to a serial bus host hub, the bus hub comprising:
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a serial bus hub having a connector to a power supply, the serial bus hub also receiving power from the serial bus host hub; a bus controller coupled to the serial bus hub; and a switch coupled to the bus controller and to the power supply, wherein the switch switches the bus hub between being powered by the power supply and being powered by the power from the serial bus host hub. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for controlling communication and power in a serial bus comprising:
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a serial bus hub adapted to detachably couple at least one peripheral to a computer system, the computer system including a processor, a memory, and a serial bus host hub capable of delivering power to the serial bus hub; a power supply electrically coupled to the serial bus hub, the power supply capable of delivering power to the serial bus hub; a bus controller coupled to the hub, wherein the bus controller receives signals from the computer system through the serial bus, and the bus controller receiving signals from the serial bus hub; and a switch coupled to the bus controller and to the power supply, wherein the switch switches the serial bus hub between being powered by the power supply and being powered by the power from a serial bus host hub. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for communicating and for control of power in a serial bus hub that detachably couples a plurality of peripherals to a computer, the computer including a host hub powered by the computer, the serial bus hub being coupled to a power supply, the method comprising:
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determining whether the serial bus hub is receiving power from the power supply; if the serial bus hub is receiving power from the power supply, initializing the serial bus hub to receive power from the power supply; if the serial bus hub is not receiving power from the power supply, initializing the serial bus hub to receive power from an upstream serial bus host hub coupled to the serial bus hub; and supplying power to the plurality of peripherals coupled to the hub. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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Specification