USB device
First Claim
1. A USB device for performing communications with a second device through a USB interface while supplying electric power to the second device through a power-source supplying line in the USB interface, the USB device comprising:
- a communication unit that communicates with the second device;
a power source capable of outputting electric power of a voltage being different from a standard power voltage prescribed in the standards of the USB interface; and
wherein the power source supplies the electric power to the second device through the power-source supplying line.
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Accused Products
Abstract
A USB device for performing communications with a second device through a USB interface while supplying electric power to the second device through a power-source supplying line in the USB interface. The USB device includes a communication unit for communicating with the second device, a power source capable of outputting electric power of a voltage being different from a standard power voltage prescribed in the standards of the USB interface. The power source supplies the electric power to the second device through the power-source supplying line. The second device includes a low load unit and a high load unit The power source supplies the electric power having a power voltage higher than the standard power voltage to the high load unit through the power-source supplying line.
35 Citations
10 Claims
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1. A USB device for performing communications with a second device through a USB interface while supplying electric power to the second device through a power-source supplying line in the USB interface, the USB device comprising:
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a communication unit that communicates with the second device;
a power source capable of outputting electric power of a voltage being different from a standard power voltage prescribed in the standards of the USB interface; and
wherein the power source supplies the electric power to the second device through the power-source supplying line. - View Dependent Claims (2, 3, 4, 5)
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6. A USB device for performing communications with a host device through a USB interface, while receiving electric power from the host device through the USB interface, the USB device comprising:
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a communication unit that communicates with the host device through the USB interface;
a low load unit operable by electric power of the standard power voltage prescribed in the standards of the USB interface; and
a high load unit consuming electric power larger than the electric power consumed in the low load unit;
wherein the high load unit is supplied the electric power having a power voltage higher than the standard power voltage from the host device. - View Dependent Claims (7, 8)
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9. An apparatus for performing internal communications, comprising:
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a first device;
a USB interface having a power-source supplying line, the USB interface connected to the first device; and
a second device connected to the first device through the USB interface;
wherein the first device comprises a communication unit that communicates with the second device through the USB interface, and a power source capable of outputting electric power of a voltage being different from a standard power voltage prescribed in the standards of the USB interface; and
the power source supplies the electric power to the second device through the power-source supplying line. - View Dependent Claims (10)
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Specification