USB POWER MANAGING SYSTEM AND METHOD THEREOF

• US 20110191616A1
• Filed: 12/03/2010
• Published: 08/04/2011
• Est. Priority Date: 02/03/2010
• Status: Abandoned Application

• Current Assignee: Action Star Enterprise Company Limited
• Original Assignee: Action Star Enterprise Company Limited
• Inventors: Cheng, Ching-Wei
• Application Number:
  US12/959,511
• Publication Number:
  US 20110191616A1
• Time in Patent Office: Days
• US Class Current: 713/323
• CPC Class Codes: G06F 1/266 Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
• CPC Class Codes: G06F 1/32 Means for saving power
• CPC Class Codes: G06F 1/325 Power saving in peripheral device

Abstract

The present invention relates to a USB power managing system and a method thereof, the USB power managing system comprises an USB peripheral device and an USB interface, wherein the USB interface includes: a micro controlling unit; a data switch coupled to the micro controlling unit; an USB connecting unit coupled to the data switch; and a power switch coupled to the micro controlling unit and the USB connecting unit; wherein when the USB peripheral device is coupled to the USB connecting unit, the micro controlling unit switches the power switch for providing a power the USB peripheral device through the USB connecting unit; moreover when the USB peripheral device enters a standby mode, the micro controlling unit turns off the power switch for stopping providing the power to the USB peripheral device.

Claims

1. A USB power managing system, comprising an USB interface, the USB interface comprising:

a micro-control unit;

a data switch unit, being coupled to the micro-control unit;

an USB connecting unit, being coupled to the data switch unit; and

a power switch unit, being coupled to the micro-control unit and the USB connecting unit;

wherein when an USB connecting interface of an external USB peripheral device is connected to the USB connecting unit, the micro-control unit switching the power switch unit and providing a power to the USB peripheral device through the USB connecting unit, and the data switch unit conducting the micro-control unit and the USB peripheral device via the USB connecting unit;

moreover, when the USB peripheral device enters a standby mode, the micro-control unit turning off the power switch unit, so as to stop providing the power to the USB peripheral device.

2. The USB power managing system of claim 1, further comprising a detecting circuit coupling to the micro-control unit, the detecting circuit being able to determine whether the USB peripheral device enters the standby mode by detecting the data transmission between the micro-control unit and the USB peripheral device.

3. The USB power managing system of claim 2, wherein when the USB peripheral device is connected to the USB connecting unit, the micro-control unit activating the USB connecting unit through the data switch unit.

4. The USB power managing system of claim 2, wherein when the data transmission between the data switch unit and the USB peripheral device is stopped after a particular time period, the USB peripheral device enters the standby mode.

5. A USB power managing system, comprising an USB interface, the USB interface comprising:

a micro-control unit;

a data switch unit, being coupled to the micro-control unit;

a plurality of USB connecting units, being coupled to the data switch unit; and

a power switch unit, being coupled to the micro-control unit and the plurality of USB connecting units;

wherein when at least one external USB peripheral devices are connected to the USB connecting units and coupled to the USB interface, the micro-control unit switching the power switch unit and providing a power to each of the USB peripheral devices through the USB connecting units, and the data switch unit conducting the micro-control unit and the at least one USB peripheral devices via the USB connecting units;

moreover, when the at least one USB peripheral devices enter a standby mode, the micro-control unit turning off the power switch unit, so as to stop providing the power to the USB peripheral devices.

6. The USB power managing system of claim 5, further comprising a detecting circuit coupling to the micro-control unit, the detecting circuit being able to determine whether the at least one USB peripheral devices enter the standby mode by detecting the data transmission between the micro-control unit and the USB peripheral devices.

7. The USB power managing system of claim 6, wherein when the at least one USB peripheral devices are connected to the USB connecting unit, the micro-control unit activating the USB connecting units through the data switch unit.

8. The USB power managing system of claim 6, wherein when the data transmission between the data switch unit and the at least one USB peripheral devices is stopped after a particular time period, the USB peripheral devices enter the standby mode.

9. A USB power managing method, comprising steps of:

(1) connecting an USB connecting interface of an USB peripheral device to an USB connecting unit of an USB interface;

(2) a micro-control unit activating the USB connecting unit connected with the USB peripheral device through a data switch unit;

(3) the micro-control unit switching a power switch unit and providing a power to the USB peripheral device via the USB connecting unit, so as to make USB peripheral device ready to work;

(4) the data switch unit conducting the micro-control unit and the USB peripheral device, such that the micro-control unit communicates with the USB peripheral device and capable of transmitting data and signal to the USB peripheral device;

(5) determining whether the data transmission between the data switch unit and the USB peripheral device is stopped after a particular time period, if yes, proceeding to step (7), otherwise, proceeding to step (6);

(6) the micro-control unit continuously communicating with the USB peripheral device via the USB connecting unit and being able to transmit data and signal through the data switch unit; and

(7) the micro-control unit turning off the power switch unit and stopping the power purveyance of the USB peripheral device.

10. The USB power managing method of claim 9, wherein the USB interface is built-in a computer.

11. The USB power managing method of claim 9, wherein the USB interface is built-in a USB hub.

12. The USB power managing method of claim 9, wherein the micro-control unit is used to determine whether the data transmission between the data switch unit and the USB peripheral device is stopped.

13. The USB power managing method of claim 9, wherein the detecting circuit unit is used to determine whether the data transmission between the data switch unit and the USB peripheral device is stopped.