CN201708938U - Wireless network access card - Google Patents
Wireless network access card Download PDFInfo
- Publication number
- CN201708938U CN201708938U CN2010201135323U CN201020113532U CN201708938U CN 201708938 U CN201708938 U CN 201708938U CN 2010201135323 U CN2010201135323 U CN 2010201135323U CN 201020113532 U CN201020113532 U CN 201020113532U CN 201708938 U CN201708938 U CN 201708938U
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- module
- wireless communication
- communication module
- bluetooth
- internet card
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- Expired - Fee Related
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Abstract
The utility model discloses a wireless network access card which comprises a wireless communication module and a bluetooth conversation module which is connected with the wireless communication module through a PCM interface, wherein the wireless communication module transmits speed digital signals to the bluetooth conversation module through a PCM_OUT and receives speed digital signals from the bluetooth conversation module through a PCM_IN. Aiming at the situation that bluetooth conversation functions are greatly popularized and used in the existing mobile phones, the utility model discloses the technical scheme of adding the bluetooth conversation module in the USB wireless network access card, realizes that calls can be made and answered through a bluetooth earphone and does not require excessive cables and trivial earphone operation. Moreover, the utility model is suitable for 2.5G/3G USB wireless network access cards.
Description
Technical field
The utility model relates to a kind of USB wireless Internet card, particularly relates to a kind of bluetooth conversation module that increases in the prior USB wireless Internet card, and this bluetooth conversation module can be conversed with the standard bluetooth earphone, realizes the wireless speech call function.
Background technology
Present USB wireless Internet cards such as 2.5G/3G both provided wireless networking capabilities, and voice call function also is provided, and just can dial and receive calls by the USB wireless Internet card.And because the problem of USB card of surfing Internet structure and Interface design, therefore MIC and Receiver that it can not provide plate to carry as mobile phone need to realize voice call by external wired auxiliary earphone.And owing to used wired auxiliary earphone, the user has increased trouble in use.
The utility model content
The technical problems to be solved in the utility model is that to overcome cable of the prior art various, and defectives such as complicated operation provide a kind of wireless Internet card of dialing and receiving calls by bluetooth earphone.
The utility model solves above-mentioned technical problem by following technical proposals:
A kind of USB wireless Internet card, its characteristics are that it comprises a wireless communication module, a bluetooth conversation module that is connected with this wireless communication module by pcm interface, and this wireless communication module sends voice digital signal to this bluetooth conversation module by PCM_OUT; This wireless communication module is by the voice digital signal of PCM_IN reception from this bluetooth conversation module.
Wherein, this wireless Internet card also comprises a USB connector that is electrically connected with this wireless communication module, is used to connect wireless communication module and computer.
Wherein, this wireless Internet card also comprises a power module that is connected with this USB, is used to wireless communication module and bluetooth conversation module for power supply.
Wherein, this wireless Internet card also comprises an earphone interface that is electrically connected with this wireless communication module, is used for carrying out two-way voice-frequency telephony with this USB wireless Internet card wired earphone outward.
Positive progressive effect of the present utility model is: the utility model is based on a large amount of present situations of popularizing the bluetooth call function that uses in the present mobile phone, proposed in the USB wireless Internet card, to increase bluetooth conversation module, realized dialing and receiving calls, and need not unnecessary cable and loaded down with trivial details earphone operation by bluetooth earphone.And the utility model is applicable to the USB wireless Internet card of 2.5G/3G.
Description of drawings
Fig. 1 is the structural representation of the wireless Internet card of the utility model preferred embodiment.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
As shown in Figure 1, USB wireless Internet card of the present utility model includes: wireless communication module 1, it is responsible for providing wireless networking capabilities and wireless communication function, and is responsible for communicating by letter with PC by USB connector.It can be 2.5G or 3G communication module.Power module 2, it is responsible for other modules power supply is provided.Earphone interface 3, its two-way voice-frequency telephony responsible and wired earphone that equipment is outer.Bluetooth conversation module 4, the standard bluetooth earphone conversation that it is responsible for and equipment is outer.And USB connector 5.Wherein, wireless communication module is by UART (Universal Asynchronous Receiver/Transmitter, universal asynchronous reception/dispensing device) configuration bluetooth conversation module, after finishing initial configuration, wireless communication module 1 just can be by the voice communication that PCM (Pulse Code Modulation, pulse-code modulation) interface is realized and bluetooth is conversed module 4 of standard.The UART interface comprises TXD and RXD signal, and wireless communication module sends configuration information to bluetooth module by TXD; Wireless communication module is by the feedback information of RXD reception from bluetooth conversation module.Pcm interface comprises PCM_OUT, PCM_IN, PCM_SYNC and PCM_CLK signal.Wireless communication module sends voice digital signal to bluetooth module by PCM_OUT, and wireless communication module is by the voice digital signal of PCM_IN reception from bluetooth conversation module.Concrete line connecting relation between wherein not shown wireless communication module 1 and the bluetooth conversation module 4, the common practise for those skilled in the art does not repeat them here.By this bluetooth conversation module, the user can use general bluetooth earphone of industry and USB wireless Internet card to connect, and just can use bluetooth earphone to realize the wireless communication function afterwards easily.Compare with wired mode, very simple and convenient.
In addition, power module 2 is responsible for to wireless communication module, bluetooth conversation module for power supply.Wherein the power supply of power module is from the 5V VBUS power supply signal of the USB interface of PC.Wherein power module provides 3.8V voltage by the DC/DC chip to wireless communication module; Provide 1.8V voltage by the DC/DC chip to bluetooth module; Provide 2.8V voltage by the LDO chip to bluetooth module.When not using bluetooth earphone, the user also can use traditional wired earphone, and the earphone interface 3 among the figure just can be realized this function.USB connector 5 provides interconnect function between wireless communication module and the PC.
In sum, the utility model has added bluetooth conversation module in a USB wireless Internet card, just can use bluetooth earphone to realize the wireless communication function easily after described bluetooth conversation module and the general bluetooth earphone of industry connect.Compare with the wired earphone mode, very simple and convenient.
Though more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these execution modes.Therefore, protection range of the present utility model is limited by appended claims.
Claims (4)
1. a wireless Internet card is characterized in that, it comprises a wireless communication module, a bluetooth conversation module that is connected with this wireless communication module by pcm interface.
2. wireless Internet card as claimed in claim 1 is characterized in that, this wireless Internet card also comprises a USB connector that is electrically connected with this wireless communication module, is used to connect wireless communication module and computer.
3. wireless Internet card as claimed in claim 2 is characterized in that, this wireless Internet card also comprises a power module that is connected with this USB, is used to wireless communication module and bluetooth conversation module for power supply.
4. as above any described wireless Internet card of claim, it is characterized in that this wireless Internet card also comprises an earphone interface that is electrically connected with this wireless communication module, be used for carrying out two-way voice-frequency telephony with this wireless Internet card wired earphone outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201135323U CN201708938U (en) | 2010-02-11 | 2010-02-11 | Wireless network access card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201135323U CN201708938U (en) | 2010-02-11 | 2010-02-11 | Wireless network access card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201708938U true CN201708938U (en) | 2011-01-12 |
Family
ID=43446088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201135323U Expired - Fee Related CN201708938U (en) | 2010-02-11 | 2010-02-11 | Wireless network access card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201708938U (en) |
-
2010
- 2010-02-11 CN CN2010201135323U patent/CN201708938U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20140211 |