USB (Universal Serial Bus) interface device
AssigneeASUSTeK COMPUTER INC.
InventorShih-Ping Yeh
Life of this patent
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Abstract
A USB connector cable includes a main cable having four separately formed wires, namely, a voltage wire, a first data transmission wire, a second data transmission wire and a ground wire, and a power cable having a voltage wire and a ground wire which are integrally and respectively formed with the voltage wire and the ground wire of the main cable.
Claims14
A USB (Universal Serial Bus) connector device for interconnecting electrically an electronic instrument and an external peripheral device, the USB connector device comprising:
- a USB interface adapted to be mounted on the electronic instrument, and adapted to supply electrical power to the external peripheral device for data transmission therebetween, said USB interface for supplying a maximum current of 2 amperes wherein, when the required current for operating the external peripheral device exceeds the amount of 2 amperes, said USB interface is converted into a state, during which state said USB interface is disconnected electrically to the external peripheral device, thereby stopping the electrical power supply to the external peripheral device;
- a load switch, mounted on said USB interface wherein, when the required current for operating the external peripheral device exceeds the amount of 2 amperes, said USB interface is converted into a state, during which state said USB interface is disconnected electrically to the external peripheral device;
- and
- a USB connector cable including:
- a main cable having two opposite ends which are adapted to be connected electrically to the external peripheral device and said USB interface for data transmission therebetween, and
- a power cable extending outwardly and laterally from said main cable between said opposite ends, and having a distal end adapted to be connected electrically to the external peripheral device in order to supply electrical power required by the external peripheral device for operation thereof.
A USB (Universal Serial Bus) interface device mounted on a CPU of a computer for interconnecting the CPU to an external peripheral device, the CPU being provided with a power supply unit, the power supply unit capable of providing current to the external peripheral device via the USB interface for operation thereof, the USB interface device comprising:
- a load switch disposed between and interconnecting electrically the power supply unit and the external peripheral device, said load switch for carrying a maximum current load of 2 amperes wherein, when the required current for operating the external peripheral device exceeds the amount of 2 amperes, said USB interface device is converted into a state, during which state said USB interface device is disconnected electrically to the external peripheral device.
A USB interface device for interconnecting a CPU of a computer and an external peripheral device, the CPU being provided with a power supply unit, the power supply unit being capable of providing current to the external peripheral device via the USB interface device for operation thereof, the USB interface device comprising:
- a load switch disposed between and interconnecting electrically the power supply unit and the external peripheral device, said load switch for carrying a maximum current load of 2.0 ampere wherein, when the required current for operating the external peripheral device exceeds the amount of 2 amperes, said USB interface device is converted into a state, during which state, said USB interface device is disconnected electrically to the external peripheral device;
- and
- a USB connector cable, including:
- a main cable having two opposite ends which are adapted to be connected electrically to the external peripheral device and the CPU for data transmission therebetween;
- and
- a power cable extending outwardly and laterally from said main cable between said opposite ends, and having a distal end adapted to be connected electrically to a power socket of the external peripheral device in order to supply electrical power from the CPU to the external peripheral device so as to permit operation of the external peripheral device.
Dependencies are inferred from the claim text.