CN1485756A - Multifunctional integrated machine having universal serial bus main terminal interface - Google Patents
Multifunctional integrated machine having universal serial bus main terminal interface Download PDFInfo
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- CN1485756A CN1485756A CNA021440611A CN02144061A CN1485756A CN 1485756 A CN1485756 A CN 1485756A CN A021440611 A CNA021440611 A CN A021440611A CN 02144061 A CN02144061 A CN 02144061A CN 1485756 A CN1485756 A CN 1485756A
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- end interface
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Abstract
The invention discloses a multifunctional integrated machine having universal serial bus host end interface, which comprises a circuit having USB host end interface expansion function ( e.g. USB HUB circuit) and a movement of common multifunctional integrated machine (or other device) having USB interface, which is an normal multifunctional integrated machine, and also can expand the USB host end interfaces to a plurality for use by other USB devices.
Description
Technical field
The present invention relates to computer external digital image processing equipment technology.
Background technology
A lot of USB (universal serial bus) (USB) that adopted are arranged in the present computer peripheral, usually these equipment all are directly connected on USB master's end interface of computing machine by USB cable and use, and promptly each equipment will take a USB master's end interface on the computer motherboard.Because the USB master's end interface limited amount on the computer motherboard, usually be no more than 4, when needs use more USB device, as scanner, printer, digital camera, MP3 player, Genius mouse, keyboard etc., USB master's end interface quantity on the computer motherboard can't satisfy user's needs, and the user has to change the USB cable of connection various device on computers in use.If the user need use more USB device simultaneously, just must buy the quantity of special-purpose universal serial bus concentrator (USBHUB) with expansion USB master end interface.
Summary of the invention
The present invention seeks to make the all-in-one multifunctional machine of generic USB interface or the additional function that other equipment has expansion USB master end interface, make it when taking USB master's end interface, expand more USB master's end interface and use for other USB device.
For achieving the above object, the invention provides a kind of all-in-one multifunctional machine that has USB (universal serial bus) master end interface, form with circuit by a common all-in-one multifunctional machine with USB master's interface expansion function by USB interface, its USB master's end interface expanded circuit expands to 1 USB master's end interface that computing machine provides a plurality of, wherein 1 expansion USB master end interface sacrificial vessel has the common multifunctional integrated machine core of USB interface to use, all the other untapped expansion USB master end interfaces are guided to the all-in-one multifunctional machine outside, connect other USB device.
The described all-in-one multifunctional machine that has USB (universal serial bus) master end interface, the PC of its all-in-one multifunctional machine end driver can use its inside common multifunctional integrated machine core driver and do not need any change.
Principal feature of the present invention is that a kind of Multifunction all-in-one (or other equipment) has the movement of the common all-in-one multifunctional machine (or other equipment) of USB interface to form by the circuit with USB master's interface expansion function (as USB HUB circuit) He Yitai, it is a normal all-in-one multifunctional machine, shared USB master's end interface can be extended to a plurality ofly again, use for other USB device.
The function that the present invention has added expansion USB master end interface for the all-in-one multifunctional machine (or other equipment) of generic USB interface, convenient for users.The USB interface that this Multifunction all-in-one (or other equipment) is connected on the computing machine is used, if USB master's end interface of computing machine is all taken, and the user is when also needing to re-use other USB device, only need new equipment is connected to use on USB master's end interface that this Multifunction all-in-one expands to get final product, needn't pull out the USB device that has connected on computers, also needn't buy special-purpose USB master's end interface expansion equipments such as USB HUB in addition.
Description of drawings
Fig. 1 is the schematic diagram that has the all-in-one multifunctional machine of USB (universal serial bus) master end interface;
Fig. 2 is a USB HUB chip circuit schematic diagram;
Fig. 3 is the Multifunction scanner;
Fig. 4 is the Multifunction printer.
Embodiment
Fig. 1 is the novel schematic diagram that has the all-in-one multifunctional machine of USB (universal serial bus) master end interface.In the Multifunction all-in-one, USB master's end interface expanded circuit and the common all-in-one multifunctional machine with USB interface are combined.1 USB master's end interface that USB master's end interface expanded circuit provides computing machine expands to a plurality of (among this figure being 4), and wherein 1 expansion USB master end interface sacrificial vessel has the common multifunctional integrated machine core of USB interface to use, and all the other are untapped
Expansion
USB master's end interface is guided to the all-in-one multifunctional machine outside, offers the user and uses.
USB master's end interface expanded circuit has various ways, and the most frequently used is USB HUB chip, as GL650 type 4 port USB HUB controllers etc.It now is the ultimate principle of example explanation USB master end interface expanded circuit with it.
The circuit theory diagrams of USB HUB chip as shown in Figure 2.DPO, the DMO of USB HUB chip for the USB that is connected with USB master's end interface of computer motherboard from end interface, they are connected respectively on the D+ and D-two lines of USB master's end interface of computer motherboard.4 groups of expansion USB master end interfaces that DP1, DM1, DP2, DM2, DP3, DM3, DP4, DM4 expand for this chip.Wherein, this group of DP1, DM1 is supplied with the multifunctional integrated machine core of generic USB and is used, and is connected to respectively on the D+, D-two lines of multifunctional integrated machine core USB interface.All the other 3 groups are connected to machine exterior, offer the user and connect other USB device use.Square 1 is a USB interface transition noise killer, is used to protect USB device not to be subjected to the influence of electromagnetic interference (EMI), for example chip SN75240 etc.Square 2 is the usb bus power control circuit, and being used for provides suitable 5V power supply to dirty USB device, for example chip TPS2014 etc.Square 3 is the crystal oscillator element.Square 4 is the crystal oscillator tuned circuit, is used to make the crystal oscillator element to be operated under the stable frequency, is generally resistance-capacitance network.
The PC of Multifunction all-in-one end driver can use its inside common multifunctional integrated machine core driver and do not need any change.
The invention is not restricted to above description, as long as without prejudice to thought of the present invention, can make various distortion, for example adopt USB master's end interface of 8 port USB HUB controllers expansion greater number, or employing have the circuit that can expand USB master's end interface of USB OTG technology etc.
The present invention also can do variously to extend and promote: can make common scanner have the additional function of expansion USB master end interface, become a novel scanner (Fig. 3); Make common printer have the additional function of expansion USB master end interface, become a novel printer (Fig. 4).
Claims (2)
1. all-in-one multifunctional machine that has USB (universal serial bus) master end interface, form with circuit by a common all-in-one multifunctional machine with USB master's interface expansion function by USB interface, it is characterized in that, USB master's end interface expanded circuit expands to 1 USB master's end interface that computing machine provides a plurality of, wherein 1 expansion USB master end interface sacrificial vessel has the common multifunctional integrated machine core of USB interface to use, all the other untapped expansion USB master end interfaces are guided to the all-in-one multifunctional machine outside, connect other USB device.
2. the all-in-one multifunctional machine that has USB (universal serial bus) master end interface as claimed in claim 1 is characterized in that, the PC of this all-in-one multifunctional machine end driver can use its inside common multifunctional integrated machine core driver and do not need any change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02144061 CN1261888C (en) | 2002-09-29 | 2002-09-29 | Multifunctional integrated machine having universal serial bus main terminal interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02144061 CN1261888C (en) | 2002-09-29 | 2002-09-29 | Multifunctional integrated machine having universal serial bus main terminal interface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1485756A true CN1485756A (en) | 2004-03-31 |
| CN1261888C CN1261888C (en) | 2006-06-28 |
Family
ID=34148384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02144061 Expired - Fee Related CN1261888C (en) | 2002-09-29 | 2002-09-29 | Multifunctional integrated machine having universal serial bus main terminal interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1261888C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349154C (en) * | 2005-09-05 | 2007-11-14 | 威盛电子股份有限公司 | Extended structure of peripheric memory device |
| CN102981085A (en) * | 2012-12-08 | 2013-03-20 | 江苏泰斯特电子设备制造有限公司 | Dynamic signal test and analysis system of universal serial bus interface |
| CN104090857A (en) * | 2014-07-07 | 2014-10-08 | 成都联星微电子有限公司 | System and method for expanding peripheral interfaces of intelligent terminal |
-
2002
- 2002-09-29 CN CN 02144061 patent/CN1261888C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349154C (en) * | 2005-09-05 | 2007-11-14 | 威盛电子股份有限公司 | Extended structure of peripheric memory device |
| CN102981085A (en) * | 2012-12-08 | 2013-03-20 | 江苏泰斯特电子设备制造有限公司 | Dynamic signal test and analysis system of universal serial bus interface |
| CN104090857A (en) * | 2014-07-07 | 2014-10-08 | 成都联星微电子有限公司 | System and method for expanding peripheral interfaces of intelligent terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1261888C (en) | 2006-06-28 |
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Granted publication date: 20060628 Termination date: 20200929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |