CN102158261A - USB (universal serial bus) wireless Internet access card - Google Patents
USB (universal serial bus) wireless Internet access card Download PDFInfo
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- CN102158261A CN102158261A CN2010101100051A CN201010110005A CN102158261A CN 102158261 A CN102158261 A CN 102158261A CN 2010101100051 A CN2010101100051 A CN 2010101100051A CN 201010110005 A CN201010110005 A CN 201010110005A CN 102158261 A CN102158261 A CN 102158261A
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- communication module
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- wireless internet
- wireless communication
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Abstract
The invention discloses a USB (universal serial bus) wireless Internet access card, which comprises a wireless communication module and a Bluetooth communication module connected with the wireless communication module through a PCM (pulse code modulation) interface, wherein the wireless communication module is used for sending a voice digital signal to the Bluetooth communication module through a PCM-OUT; and the wireless communication module is used for receiving the voice digital signal from the Bluetooth communication module through a PCM-IN. Based on the status quo that a Bluetooth communication function is greatly popularized and used in mobile phones at present, the Bluetooth communication module is added in the USB wireless Internet access card, so that telephone calls can be made and answered through a Bluetooth earphone, and redundant cables and cumbersome operation of the earphone can be avoided. Furthermore, the USB wireless Internet access card is applicable to 2.5G/3G USB wireless Internet access cards.
Description
Technical field
The present invention relates to a kind of USB wireless Internet card, particularly relate to a kind of bluetooth conversation module that increases in the prior USB wireless Internet card, 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.
Summary of the invention
The technical problem to be solved in the present invention 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 present invention 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 invention is: the present invention 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 present invention is applicable to the USB wireless Internet card of 2.5G/3G.
Description of drawings
Fig. 1 is the structural representation of the USB wireless Internet card of preferred embodiment of the present invention.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
As shown in Figure 1, USB wireless Internet card of the present invention 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 present invention 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 the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these execution modes.Therefore, protection scope of the present invention is limited by appended claims.
Claims (4)
1. a USB 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, 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.
2. USB 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. USB 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 the described USB wireless Internet card of above any claim, it is characterized in that, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101100051A CN102158261A (en) | 2010-02-11 | 2010-02-11 | USB (universal serial bus) wireless Internet access card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101100051A CN102158261A (en) | 2010-02-11 | 2010-02-11 | USB (universal serial bus) wireless Internet access card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102158261A true CN102158261A (en) | 2011-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101100051A Pending CN102158261A (en) | 2010-02-11 | 2010-02-11 | USB (universal serial bus) wireless Internet access card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102158261A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752468A (en) * | 2012-07-20 | 2012-10-24 | 深圳市英德斯电子有限公司 | PCM (pulse code modulation) voice communication module of computer |
| CN103428904A (en) * | 2013-08-13 | 2013-12-04 | 沈阳华立德电子科技有限公司 | USB (universal serial bus) wireless network card |
-
2010
- 2010-02-11 CN CN2010101100051A patent/CN102158261A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752468A (en) * | 2012-07-20 | 2012-10-24 | 深圳市英德斯电子有限公司 | PCM (pulse code modulation) voice communication module of computer |
| CN103428904A (en) * | 2013-08-13 | 2013-12-04 | 沈阳华立德电子科技有限公司 | USB (universal serial bus) wireless network card |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110817 |