Control system based on dynamic password and USBKEY, and control method thereof
AssigneeShenzhen Excelsecu Data Technology Co., Ltd.
InventorLiuzhang Chen
Life of this patent
Estimating the term…
Abstract
A control system based on dynamic password and USBKEY including a dynamic password control chip, a USB control chip, a USB interface, a battery, and a detection circuit. The detection circuit is configured to output a detection signal to the dynamic password control chip when it is detected that the USB interface is connected with an external device; the dynamic password control chip is configured to enter a sleep mode when receiving a detection signal; the battery is configured to supply power to the dynamic password control chip and to reduce the power supplied to the dynamic password control chip when the dynamic password control chip enters the sleep mode.
Claims12
A control system based on dynamic password and USBKEY, wherein the control system comprises a dynamic password control chip, a USB control chip, a USB interface, a battery, and a detection circuit;
- an input terminal of the detection circuit is 43807 connected with the USB interface, a first output terminal of the detection circuit is connected with a state detection terminal of the dynamic password control chip, and the detection circuit is configured to output a detection signal to the dynamic password control chip when it is detected that the USB interface is in connection with an external device;
- the dynamic password control chip is configured to enter a sleep mode when a detection signal is received;
- the battery is connected with a power input terminal of the dynamic password control chip, and the battery is configured to power to the dynamic password control chip;
- and
- an input/output terminal of the USB control chip is connected with the USB interface, and the USB control chip is configured to interactively communicate with the external device via the USB interface;
- the control system further comprises a keyboard circuit;
- the keyboard circuit comprises multiple keys, multiple first signal lines, and multiple second signal lines;
- the multiple first signal lines and the multiple second signal lines are crosswisely arranged, each of the multiple keys is connected with one of the multiple first signal lines and one of the multiple second signal lines, the multiple first signal lines and the multiple second signal lines are connected with multiple input terminals of the dynamic password control chip, and at least one of the multiple second signal lines is connected with an input terminal of the USB control chip;
- and
- a second output terminal of the detection circuit is connected with one of the multiple first signal lines of the keyboard circuit, and the detection circuit is configured to adjust a level state of the one of the multiple first signal lines connected therewith when the USB interface is connected with the external device, allowing the USB control chip to receive key press information from the keyboard.
A control method of a control system based on a dynamic password and USBKEY, wherein the control system comprises a dynamic password control chip, a USB control chip, a USB interface, a battery, and a detection circuit;
- an input terminal of the detection circuit is connected with the USB interface, a first output terminal of the detection circuit is connected with a state detection terminal of the dynamic password control chip, and the detection circuit is configured to output a detection signal to the dynamic password control chip when it is detected that the USB interface is in connection with an external device;
- the dynamic password control chip is configured to enter a sleep mode when a detection signal is received;
- the battery is connected with a power input terminal of the dynamic password control chip, and the battery is configured to power to the dynamic password control chip;
- and
- an input/output terminal of the USB control chip is connected with the USB interface, and the USB control chip is configured to interactively communicate with the external device via the USB interface;
- the control system further comprises a keyboard circuit;
- the keyboard circuit comprises multiple keys, multiple first signal lines, and multiple second signal lines;
- the multiple first signal lines and the multiple second signal lines are crosswisely arranged, each of the multiple keys is connected with one of the multiple first signal lines and one of the multiple second signal lines, the multiple first signal lines and the multiple second signal lines are connected with multiple input terminals of the dynamic password control chip, and at least one of the multiple second signal lines is connected with an input terminal of the USB control chip;
- and
- a second output terminal of the detection circuit is connected with one of the multiple first signal lines of the keyboard circuit, and the detection circuit is configured to adjust a level state of the one of the multiple first signal lines connected therewith when the USB interface is connected with the external device, allowing the USB control chip to receive key press information from the keyboard, and the method comprises the following steps:
- outputting the detection signal by the detection circuit to the dynamic password control chip when it is detected that the USB interface is in connection with the external device;
- allowing the dynamic password control chip to enter into the sleep mode when the detection signal is received;
- supplying power by the battery to the dynamic password control chip;
- and
- allowing the USB control chip to interactively communicate with the external device via the USB interface.
Dependencies are inferred from the claim text.