CN101272374A - Data transmission circuit, communication equipment and switching equipment - Google Patents
Data transmission circuit, communication equipment and switching equipment Download PDFInfo
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- CN101272374A CN101272374A CNA2007100645393A CN200710064539A CN101272374A CN 101272374 A CN101272374 A CN 101272374A CN A2007100645393 A CNA2007100645393 A CN A2007100645393A CN 200710064539 A CN200710064539 A CN 200710064539A CN 101272374 A CN101272374 A CN 101272374A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 33
- 238000004891 communication Methods 0.000 title claims abstract description 24
- 238000012360 testing method Methods 0.000 claims description 9
- 238000013461 design Methods 0.000 abstract description 10
- 230000003068 static effect Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention provides a data transmission circuit, a communication device and a switch device. The data transmission circuit comprises a RJ45 socket, an LAN bus, a Modem bus and a switcher, wherein one end of the switcher is connected with the RJ45 socket while the other end thereof is connected with the LAN bus and the Modem bus for switching between the LAN bus and the Modem bus. By utilizing the communication device of the data transmission circuit, the functions such as a dial-up internet access can be realized through the RJ45 socket and a telephone wire, which results in a convenient design of an interface of the device without using an RJ11 socket.
Description
Technical field
The present invention relates to the communication technology, particularly a kind of data transmission circuit, communication equipment and switching device.
Background technology
The design of notebook computer (laptop PC) at present is towards miniaturization, lightening development, and the lateral area of notebook is fewer and feweri, but the Peripheral Interface that need be placed on the side is more and more.How rationally to place Peripheral Interface and become the problem of often running in the notebook computer design.If can effectively utilize and reduce the Peripheral Interface of notebook, can make the industrialization design (ID of notebook, Industry Design) and institutional design (Mechanical Design) variation more, putting of mainboard perimeter interface is more prone to and flexibly.
Dial up on the telephone with broadband access network is two functions of the frequent use of notebook computer user.In the existing notebook computer design, support to dial up on the telephone and the circuit of broadband access network as relatively independent module, need the support of RJ11 socket and RJ45 socket respectively, increased difficulty for the miniaturization and the lightening design of notebook computer.The communication equipment of the similar notebook computer of other some also has the problems referred to above.
Summary of the invention
The technical problem that the present invention will solve provides a kind of data transmission circuit, can support broadband access network and dial up on the telephone by a socket.
Data transmission circuit provided by the invention comprises RJ45 socket, local area network bus, modulator-demodulator bus and switch; Switch one end is connected with the RJ45 socket, and the other end is connected with the modulator-demodulator bus with local area network bus; Switch is used for switching between local area network bus and modulator-demodulator bus.
Further, data transmission circuit provided by the invention also comprises switching control, is connected with described switch, is used to control the operation of described switch.
Described switching control comprises an embedded controller, is used to receive control signal, and controls the operation of switch according to control signal.
Further, described RJ45 socket comprises a plug checkout gear, and the plug checkout gear is connected with embedded controller; The plug checkout gear is used to detect the type of plug of inserting the RJ45 socket, and with testing result signalisation embedded controller, by the operation of embedded controller according to testing result signal controlling switch.
Perhaps described embedded controller receives the operation of control signal and control switch by GPIO.
In order to prevent that static from damaging described data transmission circuit, described switch links to each other with the RJ45 socket by ESD.
Data transmission circuit provided by the invention can link to each other the RJ45 socket according to the needs of using by switch with local area network bus or modulator-demodulator bus, thereby has realized supporting broadband access network and dialling up on the telephone by a socket.Further, the present invention adds the switching controls module in data transmission circuit, be convenient to control the operation of switch automatic or non-automaticly.And in data transmission circuit, add ESD, can prevent that static from damaging data transmission circuit.
The another one technical problem that the present invention will solve provides a kind of communication equipment, and this equipment can be supported broadband access network and dial up on the telephone by a RJ45 socket.
Communication equipment provided by the invention comprises RJ45 socket, local area network bus and modulator-demodulator bus and switch.Switch one end is connected with the RJ45 socket, and the other end is connected with the modulator-demodulator bus with local area network bus; Switch is used for switching between local area network bus and modulator-demodulator bus.
Further, communication equipment of the present invention also comprises the switching control that is connected with switch, is used to control the operation of switch.
Described switching control comprises an embedded controller, is used to receive control signal, and controls the operation of switch according to control signal.
Further, described RJ45 socket comprises a plug checkout gear, and the plug checkout gear is connected with embedded controller; The plug checkout gear is used to detect the type of plug of inserting the RJ45 socket, and with testing result signalisation embedded controller, by the operation of embedded controller according to testing result signal controlling switch.
Perhaps, described embedded controller receives the operation of the control signal control switch of user's input by GPIO.
In order to prevent that static from damaging described data transmission circuit, described switch links to each other with the RJ45 socket by ESD.
Communication equipment provided by the invention can link to each other the RJ45 socket according to the needs of using by switch with local area network bus or modulator-demodulator bus, thereby has realized supporting broadband access network and dialling up on the telephone by a socket.Further, communication apparatus of the present invention comprises the switching controls module that is connected with switch, is convenient to control the operation of switch automatic or non-automaticly.And between switch and RJ45 socket, increase ESD, can prevent the destruction of static to communication apparatus.
The another one technical problem that the present invention will solve is the switching device that provides data transmission circuit a kind of and provided by the invention to be used.
Switching device provided by the invention comprises a RJ45 connector and a RJ11 socket, and RJ45 connector and RJ11 socket lay respectively at the two ends of switching device, and the corresponding pin of RJ11 socket and RJ45 connector is connected.Further, described RJ45 connector also comprises an additional pin.
Description of drawings
Figure 1 shows that the structural representation of data transmission circuit of the present invention;
Figure 2 shows that the connection diagram between the each several part of data transmission circuit of the present invention;
Figure 3 shows that the structural representation of an embodiment of data transmission circuit of the present invention;
Figure 4 shows that an embodiment and the corresponding switching device of data transmission circuit of the present invention.
Embodiment
Basic thought of the present invention is, a switch is provided, one end of this switch is connected with the RJ45 socket, the other end can switch between local area network bus (LAN Bus) and modulator-demodulator bus (Modem Bus), realizes functions such as broadband access network thereby can realize dialling up on the telephone and connect common netting twine by RJ45 socket connection telephone wire.
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
Referring to Fig. 1, be the structural representation of data transmission circuit provided by the invention.This data transmission circuit comprises RJ45 socket, switch (Switch), local area network bus and modulator-demodulator bus.The RJ45 socket can be accepted the insertion of RJ45 connector or other special plugs as interface, thereby carries out exchanges data with the outside.Local area network bus is used for data I/O local area network (LAN) chip, and the modulator-demodulator bus is used for data I/O modem chip.One end of switch is connected with the RJ45 socket, and the other end is connected with the modulator-demodulator bus with local area network bus, is used for the RJ45 socket is switched to local area network bus or modulator-demodulator bus.
Switch can by one 4 the tunnel 2 select the switching chip of 1 (1to 2) to realize.The annexation of RJ45 socket and switch, switch and two kinds of buses has multiple concrete realization, one of them concrete example that is shown in Figure 2.As shown in Figure 2,1 to No. 8 pin of 1 to No. 8 pin (pin) of RJ45 socket and switch is connected, and 10 to No. 17 pins of switch are connected with local area network bus, and 18 to No. 19 pins of switch are connected with the modulator-demodulator bus.When switch made RJ45 socket and local area network bus be in connection status, being connected of the pin of RJ45 socket and local area network bus was identical with common connection.When switch made RJ45 socket and modulator-demodulator bus be in connection status, switch can be connected 1,2 pins of RJ45 socket with No. 19 by 18 of switch with modulator-demodulator, thus the transfer of data when realization is dialled up on the telephone.
Usually between RJ45 socket and switch, insert an electrostatic protection device (ElectrostaticDischarge), to prevent electrostatic damage circuit or equipment.
A switch and an embedded controller (EC, Embeded Controller) are connected, by the operation of the control switch that transmits control signal to embedded controller.Figure 3 shows that one of data transmission circuit of the present invention comprises the structural representation of the embodiment of embedded controller and electrostatic protection device.
Owing to have only a RJ45 socket, the plug that system needs to discern insertion automatic or non-automaticly is will carry out broadband access network or dial up on the telephone.In the notebook computer design, embedded controller has universal input/output interface (GPIO, General Purpose I/O Port), and key combination or software are provided in system, carries out active by the user and selects will carry out broadband access network or dial up on the telephone.User's selection is converted to control signal and sends to embedded controller by GPIO, by the handover operation of embedded controller according to control signal control switch.
As shown in Figure 4, shown in this figure left side is a kind of data transmission circuit that comprises special RJ45 socket provided by the invention, and shown in this figure the right is a kind of special switching device provided by the invention.Special RJ45 socket comprises a checkout gear, and this checkout gear comprises a pin that increases newly (b pin), and checkout gear is connected with embedded controller.The two ends of special switching device provided by the invention comprise a special RJ45 connector and a common RJ11 socket respectively, the corresponding pin of RJ45 connector and RJ11 socket is connected, special RJ45 connector increase by one with b at the pin of answering, be called a pin.Can judge that by checkout gear the plug that inserts the RJ45 socket is common RJ45 connector or special RJ45 connector, testing result sends to embedded controller as control signal, thereby controls the operation of switch automatically.Concrete working condition is, is ground connection on mainboard during b pin normal condition on the RJ45 socket, is positioned at low level; When special RJ45 connector injected, from earth point, the b pin was moved to high level to a pin on the special RJ45 connector immediately on the resistance the top of the b pin on the special RJ45 socket; If common RJ45 connector injects, then the b pin will can not be low level on the b pin by the top from earth point.The b pin is connected internally to embedded controller at notebook, utilizes the variation of level height to notify embedded controller, thereby controls the operation of switch automatically.Connect data transmission circuit provided by the invention and RJ11 plug respectively by this switching device, function such as realize dialling up on the telephone.
In the description on the present invention, mainly introduced data transmission circuit provided by the invention as application background with notebook computer, but, what those skilled in the art can understand is, the application of data transmission circuit provided by the invention is not limited to notebook computer, can be applied to the communication equipment that some other needs provide broadband access network and dial up on the telephone equally.
Data transmission circuit provided by the invention and communication equipment can link to each other the RJ45 socket according to the needs of using by switch with local area network bus or modulator-demodulator bus, thereby have realized supporting broadband access network and dialling up on the telephone by a socket.Further, the present invention comprises the switching controls module that is connected with switch, is convenient to control the operation of switch automatic or non-automaticly.And between switch and RJ45 socket, increase ESD, can prevent the destruction of static to communication apparatus.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (15)
1. a data transmission circuit is characterized in that, comprises RJ45 socket, local area network bus, modulator-demodulator bus and switch; Switch one end is connected with the RJ45 socket, and the other end is connected with the modulator-demodulator bus with local area network bus;
Switch is used for switching between local area network bus and modulator-demodulator bus.
2. data transmission circuit as claimed in claim 1 is characterized in that, also comprises switching control, is connected with described switch, is used to control the operation of described switch.
3. data transmission circuit as claimed in claim 2 is characterized in that described switching control comprises an embedded controller;
Embedded controller is used to receive control signal, and controls the operation of described switch according to control signal.
4. data transmission circuit as claimed in claim 3 is characterized in that, described RJ45 socket comprises a plug checkout gear, and the plug checkout gear is connected with described embedded controller;
The plug checkout gear is used to detect the type of plug of inserting described RJ45 socket, and with the described embedded controller of testing result signalisation, by the operation of described embedded controller according to the described switch of testing result signal controlling.
5. data transmission circuit as claimed in claim 3 is characterized in that described embedded controller has universal input/output interface GPIO, is used to receive the operation of control signal and the described switch of control.
6. as any described circuit in the claim 1 to 5, it is characterized in that described switch links to each other with described RJ45 socket by electrostatic protection device.
7. a communication equipment comprises RJ45 socket, local area network bus and modulator-demodulator bus, it is characterized in that, also comprises switch, and switch one end is connected with the RJ45 socket, and the other end is connected with the modulator-demodulator bus with local area network bus;
Switch is used for switching between local area network bus and modulator-demodulator bus.
8. communication equipment as claimed in claim 7 is characterized in that, also comprises switching control, and switching control is connected with described switch, is used to control the operation of described switch.
9. communication equipment as claimed in claim 8 is characterized in that described switching control comprises an embedded controller;
Embedded controller is used to receive control signal, and controls the operation of switch according to control signal.
10. communication equipment as claimed in claim 9 is characterized in that, described RJ45 socket comprises a plug checkout gear, and the plug checkout gear is connected with described embedded controller;
The plug checkout gear is used to detect the type of plug of inserting described RJ45 socket, and with the described embedded controller of testing result signalisation, by the operation of described embedded controller according to the described switch of testing result signal controlling.
11. communication equipment as claimed in claim 9 is characterized in that, described embedded controller receives the control signal of user's input and the operation of control switch by GPIO.
12., it is characterized in that described switch links to each other with described RJ45 socket by electrostatic protection device as any described communication equipment in the claim 7 to 11.
13., it is characterized in that described communication equipment is a notebook computer as any described communication equipment in the claim 7 to 11.
14. a switching device is characterized in that, comprises a RJ45 connector and a RJ11 socket, RJ45 connector and RJ11 socket lay respectively at the two ends of switching device, and the corresponding pin of RJ11 socket and RJ45 connector is connected.
15. switching device as claimed in claim 14 is characterized in that, described RJ45 connector comprises an additional pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100645393A CN101272374A (en) | 2007-03-19 | 2007-03-19 | Data transmission circuit, communication equipment and switching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100645393A CN101272374A (en) | 2007-03-19 | 2007-03-19 | Data transmission circuit, communication equipment and switching equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101272374A true CN101272374A (en) | 2008-09-24 |
Family
ID=40006064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100645393A Pending CN101272374A (en) | 2007-03-19 | 2007-03-19 | Data transmission circuit, communication equipment and switching equipment |
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| Country | Link |
|---|---|
| CN (1) | CN101272374A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260911A (en) * | 2020-11-09 | 2021-01-22 | Oppo广东移动通信有限公司 | communication device |
| CN112333562A (en) * | 2020-11-09 | 2021-02-05 | Oppo广东移动通信有限公司 | communication device |
| CN112367567A (en) * | 2020-11-09 | 2021-02-12 | Oppo广东移动通信有限公司 | Communication device |
-
2007
- 2007-03-19 CN CNA2007100645393A patent/CN101272374A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260911A (en) * | 2020-11-09 | 2021-01-22 | Oppo广东移动通信有限公司 | communication device |
| CN112333562A (en) * | 2020-11-09 | 2021-02-05 | Oppo广东移动通信有限公司 | communication device |
| CN112367567A (en) * | 2020-11-09 | 2021-02-12 | Oppo广东移动通信有限公司 | Communication device |
| CN112260911B (en) * | 2020-11-09 | 2022-05-17 | Oppo广东移动通信有限公司 | communication device |
| CN112367567B (en) * | 2020-11-09 | 2023-06-09 | Oppo广东移动通信有限公司 | Communication apparatus |
| CN112333562B (en) * | 2020-11-09 | 2023-06-13 | Oppo广东移动通信有限公司 | Communication apparatus |
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Open date: 20080924 |