Automatic charging device via a universal serial bus and method of operating the same
First Claim
1. An automatic charging device having a USB interface which connects to a host system that has a bus-power to provide the automatic charging device with a current, comprising:
- a battery charger connected to the USB interface for charging a battery;
an indicator associated with the host system and showing a rate of progress; and
a charging controller adjusting the current of the bus-power to inhibit exceeding the maximum load current of the USB, wherein the charging controller is controlled by the host system;
wherein the host system comprises;
an operating system detecting whether the charging device exists or not;
a USB interface communicating with the charging device and receiving a data of rate of progress from the charging device; and
a status window of a display showing the data of rate of progress.
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Abstract
The invention provides an automatic charging device via a USB and method of operating the same. The charging device comprises: a battery charger; an indicator; an USB interface; and a charging controller. The method of operating the charging device comprises the steps of: establishing a connection between the USB interface and the host system; providing a charging controller in the host system, wherein the charging controller obtains appropriate current from the bus-power through the connection; providing a battery charger electrically connecting the USB interface to electrify a battery; transferring data through the USB interface and electrifying a battery by the battery charger; continually adjusting the current of the bus-power to meet a maximum load current of the USB by the charging controller; showing the current of the bus-power and the rate of progress of the battery charger by an indicator in the host system; and determining whether the battery is fully charged or not, either terminating the charge as the battery is fully charged and decreasing the current to meet a minimum load current of the USB or repeating the steps of adjusting the current of the bus-power.
88 Citations
17 Claims
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1. An automatic charging device having a USB interface which connects to a host system that has a bus-power to provide the automatic charging device with a current, comprising:
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a battery charger connected to the USB interface for charging a battery;
an indicator associated with the host system and showing a rate of progress; and
a charging controller adjusting the current of the bus-power to inhibit exceeding the maximum load current of the USB, wherein the charging controller is controlled by the host system;
wherein the host system comprises; an operating system detecting whether the charging device exists or not;
a USB interface communicating with the charging device and receiving a data of rate of progress from the charging device; and
a status window of a display showing the data of rate of progress. - View Dependent Claims (2, 3, 4, 5)
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6. An automatic charging device having a USB interface which connects to a host system, that has a bus-power to provide the automatic charging device with a current, through a hub comprising:
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a battery charger connected to the USB interface for charging a battery;
an indicator associated with the host system and showing a rate of progress; and
a charging controller controlled by the host system to adjust the current of the bus-power to inhibit exceeding the maximum load current of the USB, wherein as the indicator shows the battery is fully charged, the charging controller sends a signal to decrease the current of the bus-power to a minimum current meeting the minimum load of the USB and stops the battery charger;
wherein the host system comprises; an operating system detecting whether the charging device exists or not;
a USB interface communicating with the charging device and receiving a data of rate of progress from the charging device; and
a status window of a display showing the data of rate of progress. - View Dependent Claims (7, 8, 9)
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10. A method of operating an automatic charging device via a universal serial bus, having a USB interface which has a bus-power to provide thereof with a current, comprising the steps of:
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(a) establishing a connection between the USB interface and the host system;
(b) providing a charging controller in the host system, wherein the charging controller obtains appropriate current from the bus-power through the connection;
(c) providing a battery charger electrically connecting the USB interface to electrify a battery;
(d) transferring data through the USB interface and electrifying a battery by the battery charger;
(e) continually adjusting the current of the bus-power to meet a maximum load current of the USB by the charging controller;
(f) showing the current of the bus-power and the rate of progress of the battery charger by an indicator in the host system; and
(g) determining whether the battery is fully charged or not, either terminating the charge as the battery is fully charged and decreasing the current to meet a minimum load current of the USB or repeating the steps (c) to (f). - View Dependent Claims (11, 12)
directly connecting the USB interface of the charging device with the USB interface of the host system by utilizing a cable or connecting the USB interface of the charging device with the USB interface of the host system through a hub by utilizing a cable;
detecting a new online device by the operation system in the host system;
setting up a USB driver; and
using the bus-power of the USB as a power source for charge by setting the charging controller at the USB port of the charging device.
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13. An automatic charging device having a computer interface which connects to a host system that has a bus-power to provide the automatic charging device with a current, comprising:
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a battery charger connected to the computer interface for charging a battery;
an indicator associated with the host system and showing a rate of progress; and
a charging controller adjusting the current of the bus-power to inhibit exceeding the maximum load current of the computer interface, wherein the charging controller is controlled by the host system via said computer interface;
wherein the host system comprises; an operating system detecting whether the charging device exists or not;
the computer interface communicating with the charging device and receiving a data of rate of progress from the charging device; and
a status window of a display showing the data of rate of progress. - View Dependent Claims (14, 15, 16, 17)
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Specification