CN201156233Y

CN201156233Y - Four in one USB HUB

Info

Publication number: CN201156233Y
Application number: CNU2008200185277U
Authority: CN
Inventors: 刘风辉; 张之海
Original assignee: Langchao Electronic Information Industry Co Ltd
Current assignee: Inspur Electronic Information Industry Co Ltd
Priority date: 2008-03-04
Filing date: 2008-03-04
Publication date: 2008-11-26
Anticipated expiration: 2018-03-04

Abstract

The utility model provides a four-in-one USB HUB. The structure consists of an USB input interface, four USB output interfaces and a multi-port repeat circuit. The USB input interface is connected with the USB output interfaces by the multi-port repeat circuit. The USB multi-port repeat circuit consists of a singlechip, a singlechip expansion bus, an expansion interface bus, a pause continue circuit and an expansion port circuit. The USB input interface is connected with the singlechip through a serial interface. The singlechip is connected with the singlechip expansion bus, the pause continue circuit and the expansion port circuit. The expansion port circuit is connected with the expansion interface bus, the pause continue circuit and four USB output interfaces. The four-in-one USB HUB has reasonable design, simple structure, convenient usage and easy maintenance, therefore, the four-in-one USB HUB has very good value for popularizing and using.

Description

One drags four USB HUB

1, technical field

The utility model relates to a kind of USB interface Communications Relay Set, and specifically a kind of one drags four USBHUB.

2, background technology

At present, computer more and more uses USB interface to carry out communication, and USB device is because of supporting hot plug, easy to carry, and cost is low, has obtained widespread use.

Along with popularizing of the PC of a large amount of support USB, USB has become the standard interface of PC.In host side, the PC of up-to-date release almost 100% is supported USB; And at the peripheral hardware end, the equipment of use USB interface also grows with each passing day, for example digital camera, scanner, joystick, tape and floppy drive, vision facilities, printer, keyboard, mouse or the like.

Because the widespread use of USB interface, may need a plurality of USB device of pegging graft simultaneously by a PC, as having used USB mouse and USB keyboard sometimes, but also need to use the scanner of USB interface and printer etc.And now the USB interface of PC case front panel generally all only design have two, there is the inconvenient problem of plug when using the USB interface at cabinet rear portion, and case front panel can not design more USB interface because of need attractive in appearancely, and this has been with inconvenience for use of USB device.

3, summary of the invention

The purpose of this utility model is to overcome above-mentioned shortcoming, provides a kind of and can make a USB interface expand to one of four USB interface to drag four USB HUB.

The technical solution of the utility model realizes that in the following manner one drags four USB HUB, and its structure is to be made up of a USB input interface, four USB output interfaces and multiport repeat circuit; The USB input interface connects the USB output interface by the multiport repeat circuit; Described USB multiport repeat circuit continues circuit by single-chip microcomputer, single-chip microcomputer expansion bus, expansion interface bus, time-out and the Extended Capabilities Port circuit is formed; The USB input interface connects single-chip microcomputer by serial line interface, and single-chip microcomputer connects the single-chip microcomputer expansion bus, suspends and continue circuit and Extended Capabilities Port circuit; The Extended Capabilities Port circuit connects the expansion interface bus, suspends and continue circuit and four USB output interfaces.

The utility model has the advantages that:

1, adopt integrated circuit (IC) chip, volume is little, and is easy to carry;

2, effective expanding USB interface solves the problem of using a plurality of USB device not have available USB interface.

4, description of drawings

Accompanying drawing 1 is the structural representation that drags four USB HUB.

Mark in the accompanying drawing is represented respectively: USB input interface 1, serial line interface 2, expansion interface bus 3, single-chip microcomputer expansion bus 4, single-chip microcomputer 5, Extended Capabilities Port circuit 6, USB output interface 7, time-out continue circuit 8.

5, embodiment

Drag four USB HUB to do following detailed description the in detail below in conjunction with accompanying drawing to of the present utility model one.

As shown in Figure 1, of the present utility model one drags four USB HUB, continues circuit 8 by a USB input interface 1, serial line interface 2, expansion interface bus 3, single-chip microcomputer expansion bus 4, single-chip microcomputer 5, Extended Capabilities Port circuit 6, USB output interface 7, time-out.

USB input interface 1 outer end is connected with the computer main board USB interface, and by the multiport repeat circuit USB interface of mainboard is expanded to four USB output interfaces.

USB input interface 1 connects single-chip microcomputer 5 by serial line interface 2, and single-chip microcomputer 5 is connected with single-chip microcomputer expansion bus 4, Extended Capabilities Port circuit 6 and suspends and continue circuit 8.

Suspend to continue circuit 8 and connect single-chip microcomputers and 5 and Extended Capabilities Port circuit 6, Extended Capabilities Port circuit 6 connects expansion interface buses 3 and USB output interfaces 7.

7 minutes four road output interfaces of USB output interface are respectively USB output 1, USB output 2, USB output 3 and USB output 4.

Of the present utility model one drag four USB HUB reasonable in design, simple in structure, easy to use, be easy to safeguard, thereby, have good value for applications.

Claims

1, one drags four USB HUB, it is characterized in that forming by a USB input interface, four USB output interfaces and multiport repeat circuit; The USB input interface connects the USB output interface by the multiport repeat circuit; Described USB multiport repeat circuit continues circuit by single-chip microcomputer, single-chip microcomputer expansion bus, expansion interface bus, time-out and the Extended Capabilities Port circuit is formed; The USB input interface connects single-chip microcomputer by serial line interface, and single-chip microcomputer connects the single-chip microcomputer expansion bus, suspends and continue circuit and Extended Capabilities Port circuit; The Extended Capabilities Port circuit connects the expansion interface bus, suspends and continue circuit and four USB output interfaces.