KR100457974B1 - Wireless network audio terminal - Google Patents

Abstract

The present invention relates to an audio terminal capable of receiving Internet radio broadcasts and information announcements through a wireless network, comprising: a wireless communication unit for wirelessly transmitting and receiving data with a wireless network access point; A plurality of channel selection keys for selecting Internet radio broadcast channel access information; A display unit for displaying a terminal operating state and internet radio broadcasting channel access information; A memory for storing a plurality of Internet radio broadcast channel access information; An audio signal processor for converting audio stream data received through the wireless communication unit into an audio signal in an audible frequency band; An audio output unit for transmitting an audio signal in an audible frequency band; And a controller for controlling the access of the Internet radio broadcasting channel access information according to the channel selection key input, as well as controlling the wireless Internet access.

Description

Wireless network audio terminal {WIRELESS NETWORK AUDIO TERMINAL}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless information terminal, and more particularly, to an audio terminal capable of receiving Internet radio broadcasting and information guide broadcasting through a wireless network.

A typical Internet service is divided into a server and a client. When a client requests a HyperText Markup Language (HTML) document to the server through the HTTP protocol, the server retrieves the requested document and passes it to the client, which is then transferred to the client's browser. It is basically displayed on the screen.

Briefly describing the reception method of the Internet radio broadcast currently being serviced,

First, when the listener wants to access a specific Internet radio station server through the Internet, the web browser application program installed in a personal computer (PC) is executed and the address of the desired Internet radio station is input. Accordingly, the personal computer is connected to a specific Internet radio station server through the Internet, and then voice data downloaded in real time from the radio station server is converted into audible signal data from the computer and output through the speaker.

However, in order to listen to general Internet radio broadcasts using a personal computer, it is inconvenient to input an address of a radio station server and has a disadvantage in that it is not portable.

On the other hand, considering that the value added of the tourism industry is increasing day by day, a terminal for providing tourist information and interpretation services through a wireless network, or a terminal capable of relaying games in a native language in a native language If provided, it is expected to contribute to the development of the domestic tourism industry.

Accordingly, it is an object of the present invention to provide a wireless network audio terminal that can easily and cheaply listen to Internet radio broadcasting or desired voice information by connecting to a desired internet radio broadcasting station server with a simple key operation.

Still another object of the present invention is to wirelessly detect and transmit information request data required for the provision of audio information by a wireless Internet service provider to a wireless Internet service provider and to transmit audio information received in response thereto. A wireless network audio terminal is provided.

1 is a system configuration according to an embodiment of the present invention.

2 is a block diagram of a wireless network audio terminal according to an embodiment of the present invention in FIG.

3 is a flowchart illustrating a process of accessing a wireless Internet radio broadcast channel according to an embodiment of the present invention.

Wireless network audio terminal according to an embodiment of the present invention for achieving the above object;

A wireless communication unit for wirelessly transmitting and receiving data with a wireless network access point;

A plurality of channel selection keys for selecting Internet radio broadcast channel access information;

A display unit for displaying a terminal operating state and internet radio broadcasting channel access information;

A memory for storing a plurality of Internet radio broadcast channel access information;

An audio signal processor for converting audio stream data received through the wireless communication unit into an audio signal in an audible frequency band;

An audio output unit for transmitting an audio signal in an audible frequency band;

And a controller for controlling the access of the Internet radio broadcasting channel access information according to the channel selection key input, as well as controlling the wireless Internet access.

In addition, the wireless communication unit according to an embodiment of the present invention, a wireless LAN card for performing communication with a wireless network access point for relaying wireless LAN communication, and a CDMA communication module for communicating with a wireless network access point for relaying mobile phone service; Including, characterized in that to provide audio information to the user through a mobile communication network or a wireless LAN network.

In addition, the present invention further includes an RF reader for detecting an RF signal transmitted from an RF tag installed in an exhibition hall or a tourist destination, and may automatically request a wireless Internet service provider server to provide annotation information about an exhibition object existing in the exhibition hall or tourist destination. There is a characteristic.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

First, FIG. 1 shows a system configuration diagram according to an embodiment of the present invention, and FIG. 2 shows a block diagram of a wireless network audio terminal according to an embodiment of the present invention.

As shown in FIG. 1, a wireless network audio terminal 100 according to an embodiment of the present invention is connected to any one of Internet radio station servers 300A to 300C through a wireless network access point 200 and an internet network. .

The wireless network access point 200 shown in FIG. 1 may be implemented as a wireless network access point (IWF) of a network operator relaying a WLAN (WLAN) communication or a network operator relaying a mobile telephone service. Since the configuration and function of the wireless network access point 200 is a known technology, a detailed description thereof will be omitted.

Internet radio station servers 300A to 300C connected to the Internet network transmit audio streams for radio broadcasting according to a broadcast schedule when a connection request is received from the wireless network audio terminal 100. The Internet radio station servers may be classified into music genres to transmit audio streams according to the genres, or may be broadcast station servers for sports relay broadcasting. In addition, each Internet radio station server may transmit an audio stream after performing member authentication when there is a connection request from the wireless network audio terminal 100. If the wireless network access point 200 is part of a mobile operator network, the wireless network access point 200 may perform member authentication. As a member authentication method, only the terminal identification information or the unique number transmitted from the wireless network audio terminal 100 may be used. This is a case in which the tourist terminal rents the terminal 100 in advance, and when considering the general sale, the terminal enters the user's password into the terminal 100 and confirms it. You can complete the membership certification process.

Hereinafter, the configuration of the wireless network audio terminal 100 will be described in detail with reference to FIG. 2.

First, the wireless communication unit 110 performs a role of wirelessly transmitting and receiving data with the wireless network access point 200. The wireless communication unit 110 includes a wireless LAN card for communicating with a wireless network access point relaying wireless LAN communication and a CDMA communication module for communicating with a wireless network access point relaying a mobile phone service. As is well known, the WLAN card includes an amplifier for receiving and amplifying an RF signal from the wireless network access point 200 through an antenna ANT, and an RF signal coupled to an IF signal, which is an intermediate frequency signal, in combination with an oscillator. An RF / IF converter for performing a signal conversion of an IF / BB converter, and an IF / BB converter connected between the RF / IF converter and a baseband processor to perform signal conversion between an IF signal and a baseband signal as a baseband signal. It includes an RF unit. And a baseband processing unit for demodulating data received through the RF unit and modulating data transmitted to the access point 200 through the RF unit, and simultaneously establishing a MAC protocol between the access point 200 and the controller 125. And a MAC processing unit performing data link processing through (IEEE 802.11b).

Meanwhile, as already known, the CDMA communication module is commercialized as a Qualcomm MSM 5105 chip, and a detailed description thereof will be omitted.

The RF reader 115 receives an RF signal transmitted from an RF tag located at an exhibition board or a guide board of a tourist attraction, processes it as a digital data code, and outputs it to the controller 125, and the display unit 120 controls the controller. According to the control of 125, it displays a terminal operation status and Internet radio broadcasting channel access information. The display unit 120 is preferably minimized for miniaturization of the terminal 100.

The audio signal processor 130 converts the audio stream data received through the wireless communication unit 110 into an audio signal of an audible frequency band and outputs the audio signal to an audio output unit (not shown). The audio output unit may include a speaker and an audio output terminal as a function block for transmitting an audio signal of an audible frequency band to a user.

The memory 135 may be implemented as a flash memory as a storage means for storing a plurality of Internet radio broadcast channel access information. The memory 135 may also store and use audio advertisement data for audio advertisement. The audio advertisement data is accessed by the control unit 125 during the selection of the Internet radio broadcasting channel and can be output as an audible sound through the audio output unit. Alternatively, the terminal 100 may be accessed and output when the power of the system 100 is "on" or "off".

The keypad 140 is composed of a plurality of channel selection keys for selecting or inputting Internet radio broadcasting channel access information. When the channel selection key is operated, data is generated and output to the controller 125. In the embodiment of the present invention, it is assumed that the plurality of channel selection keys include up, down, left and right direction selection keys and selection keys positioned at the centers of the direction selection keys. This considers only the function keys necessary for miniaturization of the terminal 100. Each direction key is assigned an address of a radio station server for each genre. That is, addresses for selecting a plurality of sports relay station servers may be allocated to the up arrow, and addresses for selecting a plurality of music broadcast server servers may be assigned to the down arrow. In this example, if the up arrow button is selected, a plurality of sports relay server address lists subordinate to the read list are read out from the memory 135 and only one or two addresses are displayed due to the limitation of the display unit 120. In this case, the user may select and access an undisplayed address by using a downward direction key. It may be further provided with a number of buttons to match and store the broadcast station server address for each number.

The wired network interface unit 145 is a means for connecting the terminal 100 to a wired internet network, and may be implemented as a USB port or an RS232C port.

Finally, the controller 125 controls the overall operation of the terminal 100. For example, in addition to controlling access to the Internet radio broadcast channel access information from the memory 135 according to the channel selection key input, wireless internet access is controlled. The controller 1125 transmits a terminal unique number stored in an internal memory for member authentication when accessing a wireless Internet network. If the terminal 100 is considered to be rented to a foreign tourist, service support language identifier information for identifying and serving a foreign language of a foreigner at the server side may be transmitted together with the terminal unique number. Although the terminal unique number may be used as the service support language identifier information, assuming that the owner who purchases the terminal personally uses the terminal 100 for language learning, the terminal receives the service support language identifier information from the user and stores it in the memory 135. After setting, it can be transmitted when accessing the wireless Internet network to receive audio information of the corresponding language.

Hereinafter, a wireless internet radio broadcast channel access process according to an embodiment of the present invention will be described in detail with reference to FIG. 3.

3 is a flowchart illustrating a wireless internet radio broadcast channel access process according to an embodiment of the present invention.

Referring to FIG. 3, first, when a user “turns on” the driving power of the terminal 100, the controller 125 first initializes the system based on the control program data stored in the internal memory. As one of the initialization processes, the controller 125 attempts to connect to the wireless Internet network (step 400) by driving and controlling the wireless communication unit 110. An attempt to access a wireless Internet network may be made by wirelessly transmitting a system ID and password for connecting to an Internet service provider (ISP) or by transmitting an ID and password of a service provider providing an audio service. If the wireless Internet network connection is made as described above, the controller 125 then checks whether there is a channel selection key input in step 410. If there is a channel selection key input as a result of the test, the process proceeds to step 420 to read the Internet radio broadcasting channel access information corresponding to the input selection key, that is, the radio station server 300A address from the memory 135.

In step 430, the radio station server 300A read is transmitted through the wireless communication unit 110, thereby requesting access to the radio station server selected by the user. When the connection is approved in response to the connection request to the radio station server, the radio station server 300A transmits the audio stream according to the broadcast schedule through the radio network access point 200 as a result. Accordingly, the wireless network audio terminal 100 receives an audio stream wirelessly transmitted from the wireless network access point 200, and the received audio stream is controlled by the controller 125 under the control of the audio signal processor 130. In step 450, the audio signal is converted into an audio signal in the audible frequency band and then output as an audio signal through the audio output unit.

Therefore, the user can listen to the tuned Internet radio broadcast through the speaker or earphone.

Thereafter, the controller 125 checks whether the power-off command is received (step 470) when there is no channel selection key input in step 460. When the power-off command is received, the controller 125 additionally stores the advertisement data stored in the memory 135 in the form of an audio signal. After controlling the output, cut off the power to the system. On the other hand, if there is a channel selection key input, the process returns to step 420 to access the broadcasting station server of another channel to control the reception and output of the audio stream as described above.

On the other hand, in the embodiment of the present invention has been described the operation when listening to the Internet radio broadcast, it is also possible to download the annotation information, such as exhibits using the provided RF reader 115.

That is, when the user carries the terminal 100 according to the embodiment of the present invention and reaches near the exhibit where the RF tag is located, the RF reader 115 receives the RF signal transmitted from the RF tag and converts it into a digital data code. Processing is performed to the control unit 125. In this case, when the digital data code is transmitted to the information providing server (not shown) through the wireless network access point 200 and the internet network as the information providing request data, the information providing server provides the information. Annotation information according to the request data is transmitted in the form of an audio stream. Then, the terminal 100 receives the audio stream transmitted from the information providing server and outputs the audio stream as an audible sound, so that the user can listen to the annotation information about the exhibit through the earphone.

In this way, in order to receive annotated information about an exhibition hall or a tourist destination through the terminal 100, the signal received through the RF reader 115 is set after setting the mode of the terminal 100 to the information providing mode according to a simple key operation. It can be implemented by programming it to be sent to the information providing server. For reference, if the terminal 100 is loaned to a foreigner, the terminal identification information may be used to select a service support language. That is, assuming that identification information of terminals that should provide annotation information in German is stored in the information providing server, and the terminals 100 are classified in case colors and rented in a hotel, an airport, or the like, from the RF tag as described above. When the terminal 100 identification information is transmitted together when receiving the transmitted signal and transmitting the information to the information providing server, the information providing server may determine the service support language through the received terminal identification information. Therefore, the information providing server transmits the audio stream of the annotation information according to the information providing request data to the terminal 100 in the determined service support language, so that foreign tourists can listen to the annotation information in their own language.

Such foreign language announcements can be applied to exhibitions or museums as well as to sports relay broadcasts as a genre of tourist attractions and internet radio broadcasts. Therefore, tourists will be able to conveniently explore the destination without a guide.

As described above, the present invention has the advantage of being able to listen to Internet radio broadcasting by connecting to a desired Internet radio broadcasting station server with only a simple key operation, as well as having an easy portability since the terminal itself can be miniaturized. In addition, the present invention is a wireless Internet service provider automatically detects and wirelessly transmits the information providing request data required for providing the audio information, and in response to the output of audio information received from the information provider to the outside to conveniently exhibit or There is an advantage that you can be informed of the tourist information, etc., foreigners will have the convenience of being able to receive the guide information of the tourist attractions or commentary of the sports game in their native language.

Claims (10)

delete delete In a wireless network audio terminal, A wireless communication unit for wirelessly transmitting and receiving data with a wireless network access point; A plurality of channel selection keys for selecting Internet radio broadcast channel access information; A display unit for displaying a terminal operating state and internet radio broadcasting channel access information; A memory for storing a plurality of Internet radio broadcast channel access information; An audio signal processor for converting audio stream data received through the wireless communication unit into an audio signal in an audible frequency band; An audio output unit for transmitting an audio signal in an audible frequency band; An RF reader for receiving an RF signal transmitted from an RF tag or an RF card and converting the signal into information request data; And a control unit transmitting wireless internet access channel access information selected by the user to control wireless internet access, and controlling to transmit the read request information data to a connecting server to provide audio information. Network audio terminal. The wireless network audio terminal as set forth in claim 3, wherein the control unit transmits and stores the terminal's unique number stored in advance for member authentication when accessing the wireless Internet network. The wireless network audio terminal as set forth in claim 3, wherein the control unit transmits and controls the service support language identifier information when the wireless Internet network is connected. The wireless network audio terminal as set forth in claim 3, wherein audio advertisement data is stored in the memory, and audio is output as an audible sound during the selection of an Internet radio broadcasting channel by the controller. The wireless network audio terminal of claim 6, wherein the control unit reads the audio advertisement data every time the terminal is turned on or off and controls audio output with an audible sound. delete delete The wireless network audio terminal of claim 3, further comprising an interface unit for a wired network connection.