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USB apparatus control device and method

A technology of equipment control and equipment, which is applied in hardware monitoring, instruments, electrical digital data processing, etc., can solve the problems of power supply, increase the problem, shorten the service life, etc., and achieve the effect of preventing power waste

Inactive Publication Date: 2008-01-16
LEJIN ELECTRONICS KUNSHAN COMPUTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Therefore, when the USB device 120 is not in use, the power supply is still unnecessary, which not only causes power waste, but also has a service life for the USB device 120 itself because it is still in the open state during the non-use period. Questions that shorten, or increase, the probability of a problem occurring

Method used

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  • USB apparatus control device and method

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Embodiment Construction

[0020] The implementation of the USB device control device and method will be described in detail below with reference to the accompanying drawings.

[0021] However, in the description of the present invention, well-known parts in the prior art are omitted, and will not be described in detail here.

[0022] Fig. 2 is a block diagram of the structure of the USB device control device in the embodiment of the present invention.

[0023] With reference to Fig. 2, between USB device 120 and the USB port 220 of computer 210, carry out USB connection by USB connection line, computer 210 comprises the control part 211 of the power supply of control USB device 120; The data monitoring part 212 for data transmission; the keyboard input part 213 for accepting the key input defined by the user to turn off the power of the USB device 120 .

[0024] At this time, the above-mentioned computer 210 includes various functional blocks for performing computer functions, and other parts except t...

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PUM

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Abstract

The invention relates to a USB equipment control device and a method; the USB equipment control device is a power control of the USB equipment and controls the power supply of the USB equipment through USB connection; the USB equipment control device comprises a power swift part which controls the open / close of power supply of the USB equipment through controlling signals, a data monitoring part monitoring whether data is transmitted between the USB equipments, a keyboard input part sensing the keystroke input of the power control of the USB equipment and a control part which controls the power swift part and hence controls the power of the USB equipment according to the signals input by the data monitoring part and the keyboard input part. Based on USB connection, the invention can control the open / close of the power supply of the USB equipment when maintains USB connection condition.

Description

technical field [0001] The present invention relates to the control of USB (Universal Serial Bus: universal serial bus architecture, hereinafter referred to as USB) equipment, in particular to a USB equipment control device and method capable of controlling the power supply of the USB equipment connected to a computer. Background technique [0002] As a type of serial port, USB is a plug-and-play interface between peripheral devices such as audio players, joysticks, keyboards, phones, scanners, and printers and computers. [0003] Although the principle of USB is the same as that of the serial port, it is faster than the serial port, easy to connect, supports 12Mbps data transmission speed, and is connected to peripheral devices. It is fast to use and can connect up to 127 devices like a chain. [0004] In addition, the USB connection can also be sensed during the use of the computer, which has the advantage of not requiring an additional power supply for peripheral devices....

Claims

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Application Information

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IPC IPC(8): G06F1/32G06F13/38G06F11/30
Inventor 李尚玄
Owner LEJIN ELECTRONICS KUNSHAN COMPUTER CO LTD