CN201681383U - USB isolation controller - Google Patents
USB isolation controller Download PDFInfo
- Publication number
- CN201681383U CN201681383U CN2009202351295U CN200920235129U CN201681383U CN 201681383 U CN201681383 U CN 201681383U CN 2009202351295 U CN2009202351295 U CN 2009202351295U CN 200920235129 U CN200920235129 U CN 200920235129U CN 201681383 U CN201681383 U CN 201681383U
- Authority
- CN
- China
- Prior art keywords
- usb
- usb signal
- interface
- isolation
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Information Transfer Systems (AREA)
Abstract
A USB isolation controller comprises a shift controller and a chip for single chip microcomputer and mainly used for connecting the USB signal interface on mainboard and expanding the USB signal interface into two physical USB signal interfaces via the shift controller on the USB isolation controller. The two physical USB signal interfaces are controlled to connect with the front panel of a cabinet by the shift controller which is in turn controlled by a single chip microcomputer. And, the two physical USB signal interfaces can not be selected simultaneously, so that complete physical isolation of the USB signal interfaces of a dual network computer is realized.
Description
Technical field
The utility model relates to computing machine USB isolated controlling device, and definite saying so discloses a kind of computing machine USB interface isolation controller, belongs to field of computer technology.
Background technology
Conventional computing machine isolation controller is general main to be the physical isolation of paying close attention to hard disk, the zones of different of two hard disks or a hard disk is respectively applied for Local Area Network and wide area network (WAN) (as the Internet net), guarantee that under the environment of LAN (Local Area Network) work user's work system safety is not subjected to attacks such as hacker.When everybody pays close attention in the hard disk operating system security, often forgotten the safety of the usb signal interface that is connected with two systems, this has just caused has non-safety information two shielding systems that are shared in by usb signal and produces security breaches when mutual.
The utility model provides a kind of computing machine USB isolation controller, task is to solve active computer to isolate in two network technologies, the usb signal interface is not by any processing, the direct phenomenon that links to each other with two shielding systems, avoided in the computing machine isolation technology, made intranet and extranet information have mutual possibility by the usb signal interface.
The utility model content
Technical problem to be solved in the utility model provides a kind of usb signal interface with mainboard and is extended to the not USB isolation controller of the usb signal interface of gating simultaneously of two-way respectively.
What the utility model was described is a kind of USB isolation controller, it comprises: a switch controller, a singlechip chip, wherein the signal input part of switch controller connects the usb signal interface of mainboard, the signal output part of this switch controller connects the not usb signal interface of gating simultaneously of two-way, and the usb signal interface of this two-way mutual exclusion can be directly connected on the front panel of cabinet, and single-chip microcomputer is connected with switch controller; Wherein the mainboard usb signal interface of switch controller connection can be more than one.The utility model is finished through the following steps: the usb signal interface of mainboard is connected to the input end of switch controller by the USB line, switch controller is extended to two-way usb signal interface according to the state of switch controller control pin with the usb signal interface, but this two-way usb signal interface can not be communicated with simultaneously, it is mutual exclusion, this two-way usb signal interface is connected respectively in different cabinet usb signal interfaces, that is: at synchronization, there is and only have the energising of one road usb signal interface available, particularly, this two-way usb signal that is expanded out has only wherein road usb signal and current system connectivity to use at any one time, when system switches to another system, then another road usb signal is enabled, and current usb signal is disabled.In the whole process, can comprise the usb signal stabilising arrangement, make its control information stable more and reliable.Wherein, the switch controller input end also can connect more than one mainboard usb signal interface, when connecting a plurality of usb signal interface of mainboard, switch controller is extended to two-way usb signal interface respectively with each usb signal interface of mainboard respectively according to above-mentioned flow process.
The utility model is when using, the input end of usb signal interface on the computer motherboard by the switch controller on usb signal line and the buffer circuit plate linked to each other, each usb signal that single-chip microcomputer on the buffer circuit plate is controlled mainboard by switch controller is separated into two-way usb signal interface respectively, and this two-way usb signal interface is connected respectively on the USB output signal interface on the cabinet front panel, it is available when this two-way usb signal is communicated with by the switch controller decision, and this two-way usb signal is complete separated signaling interface.This flow process has promptly been finished the expansion of USB interface and has been isolated and use.The user also can be according to own demand to USB interface quantity, and increase is controlled the size to the mainboard USB interface, makes that needed interface can be by this USB isolation controller expansion isolated controlling.Wherein, the buffer circuit plate is to be inserted on the PCI groove of mainboard, also can be to be inserted on the PCI-E groove of mainboard, further can be integrated on arbitrary isolation card of control hard disk or system isolation, use with the coupled computer isolation controller, it is safer to make computing machine isolate.Simultaneously, this computing machine USB isolation controller can exist the signal stabilization chip to stablize usb signal, guarantees the stable of the information flow of usb signal in the transmission way.
Good effect of the present utility model is: common hard disk/system's isolation controller is installed in computing machine, can not guarantee the isolation fully of USB interface, the shared same USB interface of intranet and extranet normally, be that the mainboard USB interface both can be used as the outer net USB interface and is used, also can be used as the Intranet USB interface and be used, but after being used the USB isolation controller, guaranteed the isolation fully of USB interface, promptly the USB interface of the USB interface of Intranet and outer net all can not be used at any time alternately.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Be described further the utility model below in conjunction with accompanying drawing:
In Fig. 1, U1 represents single-chip microcomputer, U2 represents switch controller, J1, J2, J3 is the usb signal interface, wherein J1 is for connecting the usb signal interface on the mainboard, be the usb signal input end, this usb signal input end connects the signal input part of U2, and U1 controls U2 by the single-chip microcomputer order, and the signal of switch controller U2 output is divided into the usb signal that two-way is isolated fully, be respectively J2, J3, at this moment, J2, J3 is connected with two USB interface on the cabinet respectively, under the control of switch controller U2, J2, J3 can not use simultaneously, has so just guaranteed the isolation fully of usb signal.
Claims (2)
1. USB isolation controller, it comprises: a switch controller, a singlechip chip, it is characterized in that the signal input part of switch controller connects the usb signal interface of mainboard, the signal output part of this switch controller connects the not usb signal interface of gating simultaneously of two-way, and the usb signal interface of this two-way mutual exclusion can be directly connected on the front panel of cabinet, and single-chip microcomputer is connected with switch controller.
2. according to the described USB isolation controller of claim 1, it is characterized in that: the mainboard usb signal interface that this switch controller connects can be more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202351295U CN201681383U (en) | 2009-08-07 | 2009-08-07 | USB isolation controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202351295U CN201681383U (en) | 2009-08-07 | 2009-08-07 | USB isolation controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201681383U true CN201681383U (en) | 2010-12-22 |
Family
ID=43346420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202351295U Expired - Fee Related CN201681383U (en) | 2009-08-07 | 2009-08-07 | USB isolation controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201681383U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880575A (en) * | 2011-07-15 | 2013-01-16 | 擎泰科技股份有限公司 | Data transmitting device and system for portable device and method thereof |
| CN102970127A (en) * | 2011-08-31 | 2013-03-13 | 上海夏尔软件有限公司 | Device and method for internetwork file ferry |
| CN114490483A (en) * | 2022-01-18 | 2022-05-13 | 广州朗国电子科技股份有限公司 | Novel USB framework |
-
2009
- 2009-08-07 CN CN2009202351295U patent/CN201681383U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880575A (en) * | 2011-07-15 | 2013-01-16 | 擎泰科技股份有限公司 | Data transmitting device and system for portable device and method thereof |
| CN102970127A (en) * | 2011-08-31 | 2013-03-13 | 上海夏尔软件有限公司 | Device and method for internetwork file ferry |
| CN114490483A (en) * | 2022-01-18 | 2022-05-13 | 广州朗国电子科技股份有限公司 | Novel USB framework |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103019368B (en) | A kind of method that local I/O node switches with KVM module intelligence | |
| CN204009877U (en) | A kind of integrated data collection and control device | |
| CN101299228B (en) | Safe network terminal based on single CPU dual bus | |
| CN102567238A (en) | Interface switching control method, portable terminal, portable mobile equipment, and input equipment | |
| CN109799933B (en) | Multi-point touch and display system supporting multiple hosts | |
| CN204595692U (en) | Based on the VPX computer motherboard of Shen prestige 410 processor and Shen Wei nest plate | |
| CN201681383U (en) | USB isolation controller | |
| CN202383569U (en) | Mainboard with multifunctional extensible peripheral component interconnect express (PCIE) interface device | |
| CN206133482U (en) | Switch based on FPGA realizes that eight cut one | |
| CN206178579U (en) | VPX computer motherboard based on explain 411 majestic treaters and shen wei nest plate | |
| CN206075195U (en) | Based on 411 processor of Shen prestige and the CPCI industrial control computer mainboards of Shen Wei nest plates | |
| CN203759602U (en) | Nest plate-based CPCI (Compact Peripheral Component Interconnect) industrial control computer mainboard | |
| CN106095123A (en) | A kind of method of KVM all-in-one virtual multichannel USB key Mus equipment | |
| CN205318283U (en) | Special isolation equipment mainboard based on explain 410 majestic treaters and shen wei nest plate | |
| CN203102076U (en) | Extension motherboard and extension system | |
| CN202772872U (en) | Circuit design structure for scanning of keyboard and expansion reuse of IO port | |
| CN103049715A (en) | Computer capable of controlling enabling of peripherals | |
| CN105989308B (en) | Implementation method, device and the electronic equipment of double net isolation | |
| CN204595694U (en) | A kind of CPCI computer motherboard based on Shen prestige 410 processor | |
| CN104460482B (en) | CPLD-based double-computer thermal-switching controller | |
| CN203054850U (en) | Computer with outer external device controllable and enabled | |
| CN205210761U (en) | CPEX industrial control computer mainboard based on explain majestic nest plate | |
| CN106201404A (en) | A kind of device and method of double Remote desk process of double net isolation | |
| CN203761359U (en) | Intelligent touch switch system and front and rear end control devices thereof | |
| CN204595693U (en) | A kind of computer motherboard based on Shen prestige processor and Shen Wei nest plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Nanjing Yisike Network Security Technology Co., Ltd. Ding Juan Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Nanjing E-security Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20120807 |