PORTABLE COMPUTER WITH SHARED HARDWARE RESOURCES
First Claim
1. A portable computer capable of sharing hardware resources with a computer host, the portable computer comprising:
- a power module for powering on and keeping the portable computer operable;
a shared hardware resource;
a serial bus interface having a data pin and a power pin, the data pin being capable of transmitting data between the shared hardware resource and the computer host and the power pin being capable of receiving power from the computer host;
an interface converter connected between the shared hardware resource and the data pin of the serial bus interface, and capable of converting the data between a shared hardware resource interface format and a serial bus interface format;
a power management module capable of obtaining power from the power pin of the serial bus interface and distributing the power to the shared hardware resource and the interface converter;
a power path switch capable of continuing or discontinuing the power from the serial bus interface to the power management module; and
a control module capable of controlling the power path switch to discontinue the power when the portable computer is powered on and controlling the power path switch to supply the power when the portable computer is powered off;
wherein, when the portable computer is powered on, the control module switches off the power path switch and discontinues the power to the power management module, the power management module discontinues the power to the shared hardware resource and the interface converter and disables the interface converter; and
wherein, when the portable computer is powered off, the control module switches on the power path switch and continues the power from the power pin of the serial bus interface to the power management module, the power management module distributes the power to the shared hardware resource and the interface converter, then enabling the shared hardware resource to communicate with the computer host via the interface converter.
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Accused Products
Abstract
The invention provides a portable computer with shared hardware resources that can be used by other computers. The portable computer includes an interface converter, a control module, a power management module, and a power path switch. When the portable computer is powered off and connected with a computer host through a serial bus interface, the shared hardware resources of the portable computer obtain power from the computer host through the serial bus interface. The interface converter converts data between a shared hardware resource interface format and a serial bus interface format, and enables the shared hardware resources to communicate with the computer host and therefore are employed by the computer host. In one embodiment, the shared hardware resources include a keyboard. In another embodiment, the shared hardware resources include a keyboard and a display.
41 Citations
17 Claims
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1. A portable computer capable of sharing hardware resources with a computer host, the portable computer comprising:
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a power module for powering on and keeping the portable computer operable; a shared hardware resource; a serial bus interface having a data pin and a power pin, the data pin being capable of transmitting data between the shared hardware resource and the computer host and the power pin being capable of receiving power from the computer host; an interface converter connected between the shared hardware resource and the data pin of the serial bus interface, and capable of converting the data between a shared hardware resource interface format and a serial bus interface format; a power management module capable of obtaining power from the power pin of the serial bus interface and distributing the power to the shared hardware resource and the interface converter; a power path switch capable of continuing or discontinuing the power from the serial bus interface to the power management module; and a control module capable of controlling the power path switch to discontinue the power when the portable computer is powered on and controlling the power path switch to supply the power when the portable computer is powered off; wherein, when the portable computer is powered on, the control module switches off the power path switch and discontinues the power to the power management module, the power management module discontinues the power to the shared hardware resource and the interface converter and disables the interface converter; and
wherein, when the portable computer is powered off, the control module switches on the power path switch and continues the power from the power pin of the serial bus interface to the power management module, the power management module distributes the power to the shared hardware resource and the interface converter, then enabling the shared hardware resource to communicate with the computer host via the interface converter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A portable computer capable of sharing hardware resources with a computer host, the portable computer comprising:
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a power module for powering on and keeping the portable computer operable; a plurality of shared hardware resources; a serial bus interface having a data pin and a power pin, the data pin being capable of transmitting data between the shared hardware resources and the computer host, and the power pin being capable of receiving power from the computer host; a plurality of interface converters each of which is connected between the corresponding shared hardware resource and the data pin of the serial bus interface respectively and capable of converting the data between the shared hardware resource interface format and a corresponding serial bus interface format; a power management module capable of obtaining power from the power pin of the serial bus interface and distributing the power to the shared hardware resources and the interface converters; a power path switch capable of continuing or discontinuing the power from the serial bus interface to the power management module; and a control module capable of controlling the power path switch to discontinue the power when the portable computer is powered on and controlling the power path switch to supply the power when the portable computer is powered off; wherein, when the portable computer is powered on, the control module switches off the power path switch and discontinues the power to the power management module, the power management module discontinues the power to the shared hardware resources and the interface converters and disables the interface converters; and
wherein, when the portable computer is powered off, the control module switches on the power path switch and continues the power to the power management module, the power management module distributes the power to the shared hardware resources and the interface converters, then enabling the shared hardware resources to communicate with the computer host via the interface converters. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification