KR200229687Y1 - Internet phone for voice communication and data transmission on wireless internet - Google Patents

Abstract

The present invention relates to a wireless Internet phone, and provides a wireless Internet phone including a general voice call function (VoIP), a wireless LAN data communication function and a gateway function through the Internet network.

The present invention designates and transmits a specific bandwidth through an arbitrary frequency transmitted and received from a base station, an access point, or an apparatus having an access point function, thereby enabling data transmission / voice / It is possible to transmit fax data / UMS to a communication device such as a handy computer, a notebook computer, a desktop computer, a personal digital assistant, or an MP3 player via USB, RJ-45, or RS232.

As a result, the wireless Internet phone according to the present invention can perform a role as a wireless hub by using a card slot from the wireless Internet phone as well as a wireless Internet call to the access point, the wireless client terminal connected to the wireless LAN In addition, it is possible to perform a wireless LAN data communication with a wireless LAN card function.

Description

Internet Phone for Wireless Internet Phone Calls and Wireless Internet Data Communication {INTERNET PHONE FOR VOICE COMMUNICATION AND DATA TRANSMISSION ON WIRELESS INTERNET}

The present invention relates to a wireless Internet phone (internet phone) or an access point for wireless Internet communication, a wireless LAN data communication function and gateway as well as voice overinternet protocol (VoIP) function over the Internet network A wireless internet phone including a gateway function is provided.

Today's Internet users can communicate with remote computer terminals or wired or wireless terminals through the Internet. That is, the Internet phone enables a computer terminal or a mobile communication terminal connected to the Internet network to access an internet terminal or a mobile communication terminal at a remote location.

In order to implement a wireless LAN, a wireless LAN card is required for a notebook computer or a desktop computer. An access point (AP) is a device used for wireless connection with an existing wired LAN (connected with a hub or a switch) and provides data transmission and buffering functions. An access point provides access to dozens or hundreds of clients. It supports users and can be used for several kilometers. The IEEE 802.11 WLAN structure is based on a cellular structure divided into cells, with each cell coordinated by a base station called the access point described above. On the other hand, the access point is connected to a backbone network called a distribution system (DS).

At this time, the distribution system may be a general Ethernet (Ethernet), the WLAN itself may be a backbone network. In the above-described wireless LAN system according to the related art, since only the wireless LAN data communication function is provided to the client terminal, it is inconvenient to provide a general voice telephone call function service to the client terminal.

Moreover, the Internet phone according to the prior art provides only a function (VoIP) for making a call by connecting to the Internet network by wire, and thus requires a wireless LAN data communication function or a gateway function. There have been inconveniences and technical difficulties in performing voice communication (VoIP) function through wireless data communication and Internet network.

Accordingly, a first object of the present invention is to provide a wireless Internet phone including a wireless LAN data communication function, a general voice call function, and a gateway function.

A second object of the present invention is to provide a wireless Internet phone, which can be used at the same time by making a telephone call with the Internet wirelessly in addition to the first object.

A third object of the present invention is, in addition to the first object, a wireless Internet phone capable of providing a unified message system (UMS) service including a wireless LAN data communication function and a general voice call through an internet network. To provide.

1 is a view showing the configuration of a wireless Internet phone according to the present invention.

2 is a diagram showing the configuration of a wireless Internet system to which a wireless Internet phone according to the present invention is applied.

Figure 3 is a block diagram showing an embodiment of a wireless Internet phone according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: antenna

20: switch

30: transmit amplifier

40: receiver

50: RF / IF converter

60: RF transceiver module

70: baseband processing unit

80: media access control unit (MAC)

90: PCI Adapter

100: micro controller unit (MCU)

110: interface port

120: codec

130: handset

200: wired Ethernet network

210: gateways and exchanges

211: wireless

212: wired

220: access point

230: Wireless Internet Phone

240: client terminal

301: Ethernet port

303: Ethernet buffer

304: Ethernet controller

305 CPU Core

In order to achieve the above object, the present invention is a wireless Internet phone that provides wireless LAN data communication between the voice telephone and the client terminal over the Internet network, receiving an RF signal transmitted from the Internet network, the client terminal A wireless transmission / reception module for transmitting the voice telephone message or digital data to be transmitted to the access point; A base band processing unit connected to the wireless transmit / receive module to perform signal processing at baseband; A media access control unit connected to the base band processing unit to convert a baseband signal into an Ethernet communication protocol signal or an Ethernet communication protocol signal into a baseband signal; A microcontroller unit for converting the Ethernet communication protocol signal into a voice signal (VoIP) or converting the voice signal into an Ethernet communication protocol signal; A codec unit connected to the micro controller unit to encode or decode a speech signal; An internet phone connected to the microcontroller unit and including an interface port unit for communicating data with the client terminal.

Hereinafter, a preferred embodiment of a wireless Internet phone according to the present invention will be described in detail with reference to FIGS.

1 is a view showing the configuration of a wireless Internet phone according to the present invention. The wireless Internet phone shown in FIG. 1 is wirelessly connected to an access point equipped with a conventional wireless LAN card, and can be used for wireless voice data communication as well as Internet voice telephone calls, and through a card slot from an Internet phone according to the present invention. The Internet phone itself may be configured as an access point (AP) connected to an access point to wirelessly connect a backbone Internet network as a gateway for wireless Internet communication.

In addition, the Internet phone according to the present invention can be connected by wire or wirelessly connected to the client terminal by mounting the RS232 or RJ-45 port or the like to provide data communication with the Internet network.

1, the Internet phone according to the present invention is characterized by consisting of a wireless LAN (LAN) data communication block 150 and the Internet voice telephone call support block 140. That is, the present invention is a general wireless LAN card ( It is characterized by configuring a wireless Internet phone with the function of LAN card) and Voice over Internet service (VoIP) function.

Referring back to FIG. 1, the present invention provides an RF transmission / reception module 60 including an antenna 10, a switch 20, a transmission amplifier 30, a receiver 40, and an RF / IF converter 50. It consists. In addition, the baseband processing unit 70 is connected to the RF transceiver module to perform signal processing at baseband. That is, the baseband processing unit converts an input IF signal into a digital signal through an A / D converter, or converts a digital signal into an analog signal through a D / A converter during transmission, thereby direct DSSP modulation and Perform demodulation operation.

The media access control unit (MAC) 80 according to the present invention serves to convert the baseband signal into an Ethernet communication protocol signal and vice versa. In IEEE 802.11 WLAN, a collision sense multiple access / collision avoidance (CSMA / CA) scheme is used. The media access control unit according to the present invention has a role of receiving the data requested to be transmitted from the computer terminal or sending the received data to the computer through the interface with the computer terminal, controlling the flow through the CSMA / CA method, and switching at the time of transmission and reception. In charge of.

Meanwhile, the media access control unit 80 is connected to the micro controller unit (MCU) 100 through a PCI adapter 90, and the micro controller unit 100 converts an Ethernet signal into a voice signal or converts a voice signal into an Ethernet. It converts into a signal. In addition, the output signal of the micro-controller unit 100 is decoded through the codec 120 to be delivered to the handset 130, and the voice of the Internet phone user transmitted to the handset 130 is encoded through the codec 120 to make the micro It is delivered to the controller unit 100.

Meanwhile, the digital data signal processed by the microcontroller unit 100 may be connected to a computer through the interface port 110 to provide an additional service through an internet connection. As a preferred embodiment of the interface port 110 according to the present invention can be used, such as RS232, RJ-45, USB port, as a terminal connected to the interface port 110, a handy computer, laptop computer, desktop computer, personal portable A terminal PDA, an MP3 player, or the like may be employed.

That is, the present invention may simultaneously provide a wireless LAN data communication function and a voice telephone (VoIP) service function under the control of the microcontroller unit 100 via the wireless LAN data communication function through the interface port 110. . Meanwhile, the RF signal transmitted and received by the RF transmission / reception block 60 of the Internet phone according to the present invention shown in FIG. 1 through the antenna 10 is an existing Ethernet network (Ethernet network; IEEE 802.3) or another access point composed of a wire. A wireless Ethernet network (IEEE 802.11) through an access point (AP) can be connected to provide an Ethernet environment to a wirelessly connected client terminal.

2 is a view showing the configuration of a wireless Internet system applying the Internet phone according to the present invention. 2, the Internet phone according to the present invention can perform the function of the access point 220 in the wireless Ethernet network, and also as the wireless Internet phone 230 itself (VoIP) function and the client terminal 240 Can provide wireless Internet access.

Referring to FIG. 2, the wired Ethernet network 200 receives a signal from a wired 212 or a wireless 211 through a gateway and an exchange 210 and a client 240 wirelessly connected through a wireless Internet phone 230. Send and receive data to transmit the data transmitted from the Ethernet to the client 240, or transmits the data requested by the client 240 to the Ethernet network 200.

The access point 220 according to the present invention includes an access point capable of transmitting service-oriented data away from the conventional simple functions. That is, it is based on a service-oriented transmission format such as Voice over IP (VoIP). VoIP service is to configure a voice service, such as a conventional telephone service through the Internet network 200, the difference from the existing Ethernet transmission requires a quality of service (Q.S) requires a certain bandwidth.

3 is a block diagram showing an embodiment of an Internet phone according to the present invention. Referring to Figure 3, in addition to the VoIP function and Ethernet service function according to the present invention, as a central control unit for processing an Ethernet packet (ethernet packet) to provide other services such as web browsing, file transfer, etc., the CPU core of the ARM7TDM1 series ( 305 may be used, and after receiving a signal through the Ethernet controller 304, the service is provided to the client for each service.

On the other hand, the Ethernet signal entered through the RJ-45 Ethernet port 301 is classified into the Ethernet controller 304 through the Ethernet buffer 303, and then through the CPU 305 through a wireless LAN card (311); ) Is delivered to the user.

In IEEE 802.11 wireless LAN, a carrier sense multiple access / collision avoidance (CSMA / CA) scheme is basically used. The media access controller unit 80 according to the present invention is configured to transmit data requested from a computer through an interface with a PCMCIA slot. It plays a role of sending input or received data to a computer terminal, and performs a role of controlling flow or switching of transmission and reception through a CSMA / CA method.

The foregoing has outlined rather broadly the features and technical advantages of the subject innovation in order to better understand the claims of the subject matter described below. Additional features and advantages constituting the claims of the present invention will be described below. It should be recognized by those skilled in the art that the conception and specific embodiment of the present invention can be used immediately as a basis for designing or modifying other structures for carrying out similar purposes as the present invention.

In addition, the inventive concept and embodiments disclosed in the present invention may be used by those skilled in the art as a basis for modifying or designing other structures for carrying out the same purposes of the present invention. In addition, such modifications or altered equivalent structures by those skilled in the art can be variously changed, substituted and changed without departing from the spirit or scope of the invention described in the claims.

As described above, the present invention implements an Internet phone that adds a wireless LAN card function and a voice telephone (V _O IP) function, unlike the conventional Internet phone that provides only a conventional wired / wireless LAN card or a general telephone function that delivers only Internet information. Provided is a terminal having a comprehensive wireless communication relay function.

As a result, data transmission / voice / fax data / UMS, etc. may be performed by designating and transmitting and transmitting an arbitrary frequency transmitted and received from devices having access point and access point functions including or without a base station or gateway function to a specific bandwidth. It is possible to transfer data to a communication device such as a handy computer, a notebook computer, a desktop computer, a personal digital assistant (PDA), an MP3 player, etc. using a communication cable or connector such as USB, RJ-45, or RS232.

Claims (9)

A wireless Internet phone that wirelessly provides wireless LAN data communication between a voice call and a client terminal through an Internet network, A wireless transmission / reception module configured to receive an RF signal transmitted from an access point connected to the internet network, generate a voice telephone message or digital data of the client terminal to be communicated through the internet network, and generate the RF signal to the access point as an RF signal; A base band processing unit connected to the wireless transmit / receive module to perform signal processing at baseband; A media access control unit connected to the base band processing unit to convert a baseband signal into an Ethernet communication protocol signal or to convert an Ethernet communication protocol signal into a baseband signal; A microcontroller unit for switching the Ethernet communication protocol signal to a voice signal (VoIP) for Internet phone call or digital data for Internet use of the client terminal, or converting the voice signal or the digital data to an Ethernet communication protocol signal ; A codec unit connected to the micro controller unit to encode or decode a voice signal for an internet telephone call; An interface port unit connected to the microcontroller unit to communicate data with the client terminal Internet phone including a. The Internet phone according to claim 1, wherein the interface port unit comprises one of USB port, RJ-45, RS232, or a combination thereof. The Internet phone according to claim 1, wherein the Internet network includes any one or a combination of a wired Ethernet network (IEEE 802.3) or a wireless Ethernet network (IEEE 802.11) through another access point. The Internet phone of claim 1, wherein the client terminal comprises any one or a combination of an Internet phone, a handy computer, a notebook computer, a desktop computer, a personal digital assistant (PDA), and an MP3 player. The Internet phone of claim 1, wherein the voice phone and digital data wirelessly transmitted by the Internet phone include one or a combination of wireless communication LAN data, voice, integrated message (UMS), and VOD fax data. . The Internet phone according to claim 1, wherein the Internet phone functions as a repeater as an access point for wireless Internet use by being connected to an access point connected to the Internet network through a card slot. The Internet phone of claim 1, wherein the Internet phone further includes a handset for a voice call (VoIP) call. The Internet phone according to claim 1, further comprising a PC adapter between the media access control unit and the micro controller unit. The Internet phone according to claim 1, wherein the Internet phone has a PCMCIA card slot.