KR101641967B1 - Method for connecting wireless network and a wireless network system thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wireless connection method and a wireless network connection method employing the method, and more particularly to a wireless network connection method and a wireless network connection method for establishing a wireless network connection between multimedia devices quickly and easily And more particularly to a wireless network connection system employing a wireless network.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wireless network connection method and a wireless network connection system employing the wireless network connection method.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wireless connection method and a wireless network connection method employing the method, and more particularly to a wireless network connection method and a wireless network connection method for establishing a wireless network connection between multimedia devices quickly and easily And more particularly to a wireless network connection system employing a wireless network.

A broadcasting receiver transmits content produced by a broadcasting company through a radio wave transmission medium such as a terrestrial wave, a cable or a satellite broadcasting, and a user views the broadcasting through a receiver capable of receiving the transmission medium.

However, digital-based digital broadcasting technology has been developed and commercialized in existing analog broadcasting, so that it is possible to use real-time broadcasting, contents on demand (CoD), games, news It is possible to provide various types of content services to users.

An example of content service provision using the Internet network is IPTV (Internet Protocol TV). The IPTV refers to transmitting various information services, moving picture contents, broadcasting, etc. to an user's receiver using an Internet network. The Internet network can be implemented on various types of networks such as an optical fiber network, a coaxial cable network, a fiber to the home (FTTH), a telephone network, and a wireless network based on IP (Internet Protocol).

In the case of the service using the Internet network as described above, unlike general terrestrial broadcasting, bidirectionality can be added and the user can watch the content service he wants to watch at a convenient time.

Meanwhile, the IPTV supports a wireless network connection function and can access the Internet network through a wireless router. In addition, the IPTV can be connected to other multimedia devices supporting the wireless network connection function through a wireless network. When using the wireless network connection function, the wireless network connection setting must be performed in each device. Therefore, There was a complicated and troublesome problem.

FIG. 1 is a diagram illustrating an example of a wireless network configuration between multimedia devices of the related art. Referring to FIG. 1, a multimedia device to which a wireless network connection is established must be set as a server or a client. Each time a multimedia device is set as a server, a SSID SSID (Service Set Identifier) Key. In addition, the multimedia device set as a client must search for and select a multimedia device recognized as a server whenever the wireless network is connected, and receive the SSID and the security key of the multimedia device recognized as a server.

For example, when the user connects the wireless network to the multimedia device 2 (102) from the multimedia device 1 (101), the user selects the wireless network connection mode from the multimedia device 1 (101) (SSID) to be recognized as a server in the multimedia device 102 and sets a password, the multimedia device 2 102 searches for the multimedia device 1 101 and selects the searched multimedia device 1 101 The SSID and the password have to be input.

When the multimedia device 1 (101) is connected to the multimedia device 3 (103) or the wireless router (104) through the wireless network, and then the multimedia device 2 (102) is connected to the wireless network again, There was a problem.

Accordingly, there is a need for a wireless network connection method and a multimedia device employing the wireless network connection method between multimedia devices capable of setting up a wireless network connection in a multimedia device supporting a wireless network connection function very quickly and easily by solving the problems of the related art There is a need.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a wireless network connection method between multimedia devices capable of setting up wireless network connection in a multimedia device supporting a wireless network connection function very quickly and easily, And to provide a device.

A method for connecting a wireless network of a multimedia device according to an exemplary embodiment of the present invention includes a first step of receiving a user identifier and a password from a first multimedia device and generating an SSID and a network security key using the user identifier; And a second step of establishing a wireless network connection with the first multimedia device using the generated SSID and the network security key after generating the SSID and the network security key using the user identifier and the password in the second multimedia device, And a control unit.

According to another aspect of the present invention, there is provided a method of connecting to a wireless network of a multimedia device, the method comprising: receiving a user identifier and a password from a first multimedia device; generating an SSID and a network security key using the received user identifier and password; And searching for a second multimedia device matching the SSID and the network password to establish a wireless network connection, and the second multimedia device stores the SSID and the network password.

According to another aspect of the present invention, there is provided a wireless network connection system including a first multimedia device receiving a user identifier and a password, and generating an SSID and a network security key using the user identifier; And a second multimedia device for generating an SSID and a network security key using the user identifier and the password, and establishing a wireless network connection with the first multimedia device using the generated SSID and the network security key .

According to another aspect of the present invention, there is provided a multimedia device including: a user input unit for receiving a user identifier and a password; A controller for generating an SSID and a network security key using the received user identifier and password; And a network manager for searching for a second multimedia device matching the SSID and the network password to establish a wireless network connection, and the second multimedia device stores the SSID and the network password.

The present invention has the effect of enabling a wireless network connection setting to be performed very quickly and easily in a multimedia device supporting a wireless network connection function.

In addition, the present invention can establish a wireless network connection between multimedia devices without receiving an SSID and a network security key from a user in the first multimedia device or the second multimedia device, thereby enabling easy wireless network connection setting.

In addition, since the present invention generates and stores the SSID and the network security key corresponding to the user identifier and the password, if the user inputs the user identifier and the password in the first multimedia device or the second multimedia device, The multimedia device corresponding to the password is searched and the wireless network connection is established and the user input can be minimized. This is because the multimedia device having the user input means such as IPTV or digital picture frame is minimized, So that it can be used.

The present invention can also be applied to a system in which a first multimedia device is connected to a wireless router or another multimedia device through a wireless network and then connected to the second multimedia device without inputting the SSID and the network security key to the first multimedia device and the second multimedia device The SSID and the network security key input in the first multimedia device, the SSID and the network security key input in the second multimedia device, the first multimedia device, the second multimedia device, It has the effect of setting up a wireless network connection without a search and selection step.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating an embodiment of a wireless network between multimedia devices of the prior art; FIG.
2 is a diagram schematically illustrating an IPTV system according to an embodiment of the present invention.
3 is a schematic diagram of a network TV system according to one embodiment of the present invention.
FIGS. 4 and 5 are diagrams schematically illustrating multicast and unicast schemes, respectively. FIG.
6 is a diagram showing a hierarchical structure for a content download service (CDS: Content Download Service) broadcast of IPTV;
FIG. 7 illustrates a network connection of multimedia devices according to an embodiment of the present invention; FIG.
8 is a diagram illustrating a process in which a first multimedia device and a second multimedia device are connected to a wireless network according to an embodiment of the present invention.
9 is a diagram illustrating a process of establishing a wireless network connection between multimedia devices in which an SSID and a network security key are generated according to an embodiment of the present invention.
10 is a diagram illustrating a wireless network connection among multimedia devices according to an embodiment of the present invention.
11 is a diagram illustrating an embodiment of an IPTV receiver that is a multimedia device according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a multimedia device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Although the terms used in the present invention have been selected in consideration of the functions of the present invention, it is possible to use general terms that are currently widely used, but this may vary depending on the intention or custom of a person skilled in the art or the emergence of new technology. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term rather than the name of the term, and the contents of the present invention throughout the present invention.

The multimedia device of the present invention includes all means capable of outputting contents such as an audio signal, a video signal, a video signal, and an image, and includes all of a digital broadcast receiver, an MP3 player, an audio player, a Blu- do. Here, the digital broadcasting receiver means a broadcasting receiver capable of receiving digital broadcasting transmitted as digital video and audio signals. Digital broadcasting refers to a broadcasting technology capable of bi-directional operation, reproduction and accumulation because it compresses and outputs a television signal in a digital form in which information signals are encoded and recorded unlike conventional analog broadcasting. Compared to analog broadcasting, such digital broadcasting is strong against noise and has a small data loss, and since it transmits separate error correction information, it is advantageous for error correction and provides a high resolution and clear screen. Also, unlike analog broadcasting, digital broadcasting can receive a broadcasting service from a broadcasting station and provide bidirectional service to provide information to a broadcasting station. In the present invention, digital broadcasting is used not only for broadcasting through terrestrial, satellite, and cable but also for broadcasting transmitted through an Internet network. That is, digital broadcasting defines the concept including IP (Internet Protocol) broadcasting. Also, in the present invention, a digital broadcast receiver includes a broadcast receiver capable of providing an Internet service to a viewer. Here, the Internet service includes communication services such as information services such as CoD (content's on demand) service, YouTube service, weather, news, local information and search, entertainment services such as games and karaoke, TV mail and TV SMS And the like can be provided through the Internet. Accordingly, the digital broadcast receiver in the present invention includes a network TV, a web TV, and a broadband TV. The broadcasting service may include an Internet service as well as a broadcasting service provided through terrestrial, satellite, and cable.

There may be various system architectures for transmitting digital broadcasts. For example, an Internet Protocol Television (IPTV) system is a system capable of providing various contents using an Internet network. The system can be composed of a server, a network, and a client.

The server of the IPTV includes various servers such as a service discovery and selection server, a streaming server, a contents guide information server, a customer information server, a payment information server, ≪ / RTI >

Among the servers, the streaming server transmits moving picture data encoded by MPEG (Moving Picture Experts Group) 2, MPEG4, etc. stored in the server to a user via a network. A Real-Time Transport Protocol (RTP), an RTP Control Protocol (RTCP), or the like may be used as the protocol for the transmission.

When real-time streaming protocol (RTSP) is used, video stream reproduction may be controlled to a certain extent through a function called network trick play such as pause, replay, and stop . The protocols are examples and other real-time transmission protocols may be used according to embodiments.

The content guide information server is a server for providing information on the various contents provided. The content guide information is information corresponding to EPG (Electronic Program Guide) information and includes various kinds of information about the content. The content guide information server stores content guide information data and provides the stored data to a receiver.

The information server for service discovery and selection among the servers provides access information, playback information, and the like to servers providing various contents services such as broadcasting, contents on demand (CoD), and games.

The network system consists of internet based network and gateways. The Internet-based network may be based on IP, such as an optical fiber network, a coaxial cable network, a fiber to the home (FTTH) network, a telephone network, and a wireless network. The gateway can perform not only general data transmission but also multicast group management and quality of service (QoS) management using protocols such as Internet Group Management Protocol (IGMP).

An IPTV receiver is a receiver that receives data transmitted through the Internet and provides it to a user. The receiver includes an IPTV settop, a home net gateway, and an IPTV embedded TV.

In the case of a hybrid IPTV system, various contents of the Internet as well as various existing broadcast contents can be provided. In other words, it is possible to provide various broadcast contents such as terrestrial broadcast, cable broadcast, satellite broadcast, personal broadcast, etc., various Internet video contents, data contents other than video, and the like to users. The contents may be provided in real time or on demand depending on the request.

2 is a diagram schematically illustrating an IPTV system according to an embodiment of the present invention.

Referring to FIG. 2, the IPTV system may be divided into a content provider (CP), a service provider (SP), a network provider (NP), and a user have.

The content provider produces and provides various contents. 1, a terrestrial broadcaster, a cable SO (System Operator) or a MSO (Multiple System Operator), a satellite broadcaster, an Internet broadcasting transmitter (Internet broadcaster).

The service provider provides the contents provided by the contents provider in a service package. For example, the service provider of FIG. 1 packages a first terrestrial broadcast, a second terrestrial broadcast, a cable MSO, a satellite broadcast, various Internet broadcasts, and the like to a user.

The network provider provides a network for providing the service to the user. The user may establish a home network (HNED) to receive the service.

As a means for protecting the content transmitted in the IPTV system, a conditional access and a content protection may be used. As an example of the above-described conditional access and content protection, a scheme such as a cable card (CableCARD) and a DCAS (Downloadable Conditional Access System) can be used.

3 is a schematic diagram of a network TV system according to an embodiment of the present invention.

Referring to FIG. 3, a network TV is a digital broadcast receiver capable of receiving a digital broadcast, and also receiving an Internet service and providing it to a viewer. Network TV can be named broadband TV and includes web TV. Here, Web TV is a digital broadcasting receiver that receives and provides Internet services based on the Web.

The network TV can receive the Internet service directly from the content provider through the Internet. The network TV can request the retrieval of necessary information from the contents provider and receive the result and provide it to the user. In addition, the network TV can download the content and software requested by the user, play the downloaded content, or execute the downloaded software. It also receives a web page from a content provider and can display a web page received via a browser.

In addition, the network TV can receive a broadcast service from the terrestrial broadcaster through a terrestrial wave as well as receive a broadcast service through the Internet, and can receive a cable SO (System Operator) through a cable, Or a Multiple System Operator (MSO)), and may receive a broadcast service from a satellite broadcaster through a satellite.

A digital broadcast receiver can receive a broadcast service from a service provider or a content provider using a unicast or multicast method.

4 and 5 are diagrams schematically showing multicast and unicast methods, respectively.

Referring to FIGS. 4 and 5, the unicast method is a method of transmitting data between one sender and one receiver at a ratio of 1: 1. For example, in a case of a unicast method, when a receiver requests data from a server, the server transmits data to the receiver upon request. The multicast method is a method of transmitting data to a plurality of receivers of a specific group. For example, the server can transmit data to a plurality of pre-registered receivers at once. An Internet Group Management Protocol (IGMP) protocol may be used for the multicast registration.

FIG. 6 is a diagram illustrating a hierarchical structure for a content download service (CDS) broadcast of IPTV.

Referring to FIG. 6, a service provider transmits data contents for CDS to an IPTV receiver using a transmission protocol. The delivered data content for CDS is stored in the storage of IPTV. The stored CDS data contents can be executed by the user's request or the like. Here, the transmission protocol can be FLUTE (File Delivery over Unidirectional Transport) on the ALC / LCT over IP / UDP, DVB-STP, DVB data / object carousel, FTP (file transfer protocol) protocol, etc.) may be used. As the above-mentioned protocol, for example, other transmission protocols may be used.

If FLUTE is used as the transmission protocol, the presence or absence of the CDS service can be notified to the IPTV receiver through the service search and selection (SD & S), and the details about the contents can be recorded in the metadata of the TV Anytime format, Can be found through.

The CDS data contents may include various kinds of contents such as A / V contents, data contents, and game contents.

As described above, the digital broadcast receiver of the present invention including IPTV can receive various contents, and can output the provided contents to the display screen according to the user's selection.

In addition, the digital broadcast receiver of the present invention including IPTV can be connected to other multimedia devices through a wireless network. A process of connecting a multimedia device including a digital broadcast receiver to another multimedia device is described below.

7 is a diagram illustrating a network connection of multimedia devices according to an exemplary embodiment of the present invention.

7, a first multimedia device according to an exemplary embodiment of the present invention may be connected to a wireless router 704 through a wireless access point (WAP) Ad-Hoc) method to the second multimedia device 702 or 703.

At this time, the wireless network connection is connected to a wireless communication network such as Wi-Fi, Bluetooth, Radio Frequency Identification (RFID), IrDA, UWB (Ultra Wideband), ZigBee And can be networked with other electronic devices.

In this case, the first multimedia device to be connected to the wireless network must be set as a server or a client. The SSID (Service Set Identifier) and the network security key for recognizing the first multimedia device as a server must be set, The second multimedia device 702 or 703 sets the first multimedia device to the server and connects the first multimedia device to the wireless network.

8 is a diagram illustrating a process in which a first multimedia device and a second multimedia device are connected to a wireless network according to an embodiment of the present invention.

Referring to FIG. 8, in step S801, the first multimedia device according to an exemplary embodiment of the present invention selects a wireless network connection mode for connecting a wireless network between multimedia devices.

Next, in step S802, the first multimedia device receives the user identifier and the password, and generates the SSID and the network security key using the input user identifier and the password.

The user identifier and password are entered by the user. The SSID is identifier information for the first multimedia device to be recognized as a server, and the network security key is generated for establishing a wireless network connection between the first multimedia and other multimedia devices.

For example, the control unit included in the first multimedia device generates an SSID including the input user identifier, and generates a network security key including the input password.

Next, the first multimedia device stores the inputted user identifier and password, the generated SSID, and the network security key in the storage means.

Next, the first multimedia device selects a data encryption method in step S804, and establishes a wireless network connection in step S805. At this time, the first multimedia device may be set as a server, and a wireless network connection may be established.

Next, in step S806, the second multimedia device selects a wireless network connection mode between the multimedia devices.

In step S807, the second multimedia device receives the user identifier and the password, and generates the SSID and the network security key using the user identifier and the password input in step S808.

For example, the network manager included in the second multimedia device generates an SSID including an input user identifier, and generates a network security key including an input password.

At this time, the first multimedia device and the second multimedia device can generate the SSID and the network security key using the user identifier and the password in the same manner.

According to the embodiment, the second multimedia device receives the user identifier and the password from the first multimedia device without receiving the user identifier and the password from the user in step S807, or receives the user identifier and the password from the first multimedia device Readable from a medium (e.g., CD, USB, etc.), and can generate an SSID and a network security key with the read user identifier and password.

According to an embodiment of the present invention, the second multimedia device receives the user identifier, the SSID, and the network security key from the first multimedia device without generating the SSID and the network security key in step S808, Or the user identifier and the password, the SSID, and the network security key, which are connected to the second multimedia device, from the storage medium.

Next, the second multimedia device stores the inputted user identifier and password, the SSID generated and input or read, and the network security key in the storage means, and searches for the server (first multimedia device) set up with the generated SSID.

Next, the second multimedia device selects a data encryption method in step S809, and establishes a wireless network connection with the first multimedia device. In this case, the second multimedia device may be set as a client and configured to establish a wireless network connection with a first multimedia device set as a server, and the encryption method may be the same as the method set in the first multimedia device.

9 is a diagram illustrating a process of establishing a wireless network connection between multimedia devices after an SSID and a network security key are generated according to another embodiment of the present invention.

Referring to FIG. 9, in step S901, the first multimedia device selects a wireless network connection mode for connection to a wireless network between multimedia devices from a user.

Next, the first multimedia device receives the user identifier and the password in step S902, and reads the SSID and the network security key matching the user identifier and the password input in step S903 from the storage device.

Next, the first multimedia device selects a data encryption method in step S904, and establishes a wireless network connection. At this time, the first multimedia device may be set as a server, and a wireless network connection may be established.

Next, in step S905, the second multimedia device selects a wireless network connection mode between the multimedia devices.

In step S906, the second multimedia device receives the user identifier and the password, and searches the storage unit for the SSID and the network security key corresponding to the user identifier and the password input in step S907.

At this time, as described above, the second multimedia device does not receive the user identifier and the password from the user, but receives the user identifier and the password from the first multimedia device, or reads it from the storage medium connected to the second multimedia device And the SSID and the network security key generated using the read user identifier and the password may be stored in the storage means. In the storage medium or the storage means, the second multimedia device may store the SSID corresponding to the received user identifier and password, The security key can be retrieved from the storage means.

According to the embodiment, the second multimedia device receives the user identifier, the password, the SSID, and the network security key from the first multimedia device without generating the SSID and the network security key in step S808, The user identifier and password, SSID, and network security key that are connected to the device may be read from the storage medium.

Next, the second multimedia device selects a data encryption method in step S908, and establishes a wireless network connection with the first multimedia device. At this time, the second multimedia device is set as a client and can establish a wireless network connection with a first multimedia device set as a server.

FIG. 10 is a diagram illustrating a wireless network connection between multimedia devices according to an embodiment of the present invention. Referring to FIG.

Referring to FIG. 10, when a user inputs a user identifier and a password in the first multimedia device 1001, the first multimedia device 1001 and the second multimedia device corresponding to the input user identifier and password 1002) is set as a server and a client as a wireless network connection.

For example, when the first multimedia device 1001 selects a wireless network connection mode among the multimedia devices, the user identifier 'USER 1' and the password '1111' are input, and the second multimedia device 1002 connects the multimedia device- Mode and connects the first multimedia device 1001 and the second multimedia device 1002 to the wireless network when the user identifier 'USER 1' and the password '1111' are input or when the wireless network connection mode is selected.

Therefore, the present invention can establish a wireless network connection between multimedia devices without receiving an SSID and a network security key from a user in a first multimedia device or a second multimedia device, thereby enabling easy wireless network connection establishment.

In particular, since the present invention generates and stores the SSID and the network security key corresponding to the user identifier and the password, if the user inputs the user identifier and the password in the first multimedia device or the second multimedia device, The multimedia device corresponding to the password is searched and the wireless network connection is established and the user input can be minimized. This is because the multimedia device having the user input means such as IPTV or digital picture frame is minimized, So that it can be used.

Even if the first multimedia device 1001 is connected to the wireless router 1004 or another multimedia device 1003 through a wireless network and then connected to the second multimedia device 1002 again, Since the SSID and the network security key are not input to the multimedia device and only the user identifier and the password are input, the SSID and the network security key are automatically input into the wireless network. Therefore, the SSID and the network security key in the first multimedia device, The SSID, the network security key input, and the first multimedia device search and selection step.

11 is a diagram illustrating an embodiment of an IPTV receiver that is a multimedia device according to the present invention.

11, the signal input unit to which the video / audio signal is input may include a tuner unit 1301, an A / V input unit 1302, a USB input unit 1303, and a wireless signal input unit 1304, for example. The video / audio processing unit processes the input video signal or audio signal so that the video or audio can be outputted to the display 1116 and the audio output unit, and may include a demodulator 1305, a decoder, and the like.

The tuner unit 1301 selects an RF broadcast signal corresponding to a channel selected by a user from among RF (Radio Frequency) broadcast signals received through an antenna, and outputs the selected RF broadcast signal as an intermediate frequency signal, Conversion. For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal (DIF), and if the selected RF broadcast signal is an analog broadcast signal, it is converted into an analog baseband image or voice signal (CVBS SIF). That is, the tuner unit 1301 can process a digital broadcast signal or an analog broadcast signal.

Also, the tuner unit 1301 can receive an RF broadcast signal of a single carrier according to an Advanced Television System Committee (ATSC) scheme or an RF broadcast signal of a plurality of carriers according to a DVB (Digital Video Broadcasting) scheme.

The demodulation unit 1305 receives the digital IF signal DIF converted by the tuner unit 1301 and performs a demodulation operation. For example, when the digital IF signal output from the tuner unit 1301 is the ATSC scheme, the demodulator 1305 performs 8-VSB (8-Vestigal Side Band) demodulation. As another example, when the digital IF signal output from the tuner unit 1301 is a DVB system, the demodulator 820 demodulates CODDMA (Coded Orthogonal Frequency Division Modulation).

Also, the demodulator 1305 may perform channel decoding. The demodulator 1305 includes a trellis decoder, a de-interleaver, and a Reed Solomon decoder to perform trellis decoding, deinterleaving, and lead decoding. Solomon decoding can be performed.

The demodulation unit 1305 may perform demodulation and channel decoding and then output a stream signal TS. At this time, the stream signal may be a signal in which a video signal, a voice signal, or a data signal is multiplexed. For example, the stream signal may be an MPEG-2 TS (Transport Stream) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, or the like. Specifically, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

In addition, the signal input unit can connect the external device and the IPTV receiver 1100. The external device refers to various types of video or audio output devices such as a DVD (Digital Versatile Disk), a Blu ray, a game device, a camcorder, and a computer (notebook).

The A / V input unit 1302 of the signal input unit includes an Ethernet terminal, a USB terminal, a CVBS (Composite Video Banking Sync) terminal, and a Digital Video Broadcasting Component terminal, S-video terminal (Analog), DVI (Digital Visual Interface) terminal, HDMI (High Definition Multimedia Interface) terminal, RGB terminal, D-SUB terminal, IEEE 1394 terminal, SPDIF terminal, . ≪ / RTI > The CVBS terminal, and the analog signal input through the S-video terminal can be converted into a digital signal and input. A digital signal inputted through other input terminals can be inputted without an analog / digital conversion process.

The USB input unit 1303 can input video and audio signals through a USB terminal.

The wireless signal input unit 1304 can connect the IPTV receiver 1100 to a wireless network. The IPTV receiver 1100 may be connected to the wireless Internet through a wireless signal input unit 1304. [ For wireless Internet access, WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) In addition, the wireless signal input unit 1304 can perform short-range wireless communication with other multimedia devices. For example, it can be connected to other electronic devices in accordance with Bluetooth, RFID (Radio Frequency Identification), IrDA (Infrared Data Association), UWB (Ultra Wideband) and ZigBee communication standards.

In addition to the wireless signal input unit 1304, an Ethernet terminal or a signal input unit may further include a network unit for efficient network connection and management. The network unit may include a PSTN, a LAN, a CABLE, To connect to the network.

Meanwhile, the signal input unit may be connected to the various set-top boxes through at least one of the various terminals described above to perform input / output operations with the set-top box. For example, when the set-top box is a set-top box for an IP (Internet Protocol) TV, the video, audio and data signals processed in the IPTV set-top box can be transmitted to the controller 1118, The control unit 1118 may transmit the processed signals to the IPTV set-top box.

Therefore, the IPTV receiver according to the present invention can process a signal transmitted through a radio network, in addition to a broadcast signal through a radio wave medium, a signal from an external input device, and the like. That is, the IPTV receiver according to the present invention can receive broadcast data provided by the service providing server through the network and can communicate with the multimedia device. For example, the signal input unit can transmit and receive a multimedia device search signal, a playback information request signal, and playback information through a wired and wireless network.

The IPTV receiver 1100 includes a network interface unit 1102, a network manager 1104, a service delivery manager 1106, a demultiplexer 1108, a data decoder 1110, a decoder 1112, a display unit 1116, A service information database unit 1122, a service discovery manager 1124, a service control manager 1126, a meta data manager 1128, and a content database unit 1130. The control unit 1118, the service information database unit 1122,

The network interface unit 1102 receives packets received from the network and transmits the packets to the network.

The network manager 1104 is involved in delivering packets from the source to the destination with respect to the packets received from the IPTV receiver 1100 and the packets transmitted from the IPTV receiver 1100. The network manager 1104 classifies the received packets so as to correspond to the appropriate protocols and transmits the packets classified as the service delivery manager 1106, the service discovery manager 1124, the service control manager 1126 and the metadata manager 1128 .

The service delivery manager 1106 is responsible for controlling the received service data. For example, RTP / RTCP (Real-Time Transport Protocol / RTP Control Protocol) can be used to control real-time streaming data. When the real-time streaming data is transmitted using the RTP, the service delivery manager 1106 parses the received data packet according to the RTP and transmits it to the demultiplexer 1108 or controls the service manager 1120 And stores it in the content database unit 1130. And feedbacks the network reception information to the server providing the service using the RTCP.

The demultiplexer 1108 demultiplexes the received packets into audio, video, PSI (Program Specific Information) data, and transmits them to the decoder 1112 and the data decoder 1110, respectively.

The data decoder 1110 decodes service information such as PSI (Program Specific Information). That is, the data decoder 1110 receives and decodes a demultiplexed PSI section, a Program and Service Information Protocol (PSIP) section, a DVB-SI (Service Information) section and the like in the demultiplexer 1108.

Also, the data decoder 1110 decodes the received sections to create a database of service information, and stores the database related to the service information in the service information database unit 1122.

The decoder 1112 decodes the video data and the audio data received from the demultiplexer 1108. To this end, the decoder 1112 includes an audio decoder 1113 and a video decoder 1114. The audio data decoded in the audio decoder 1113 is provided to the user through a speaker (not shown), and the decoded video data in the video decoder 1114 is provided to the user through the display unit 1116.

The control unit 1118 manages the overall state of the IPTV receiver 1100 and provides a user interface. The control unit 1118 includes a user interface manager 1119, a service manager 1120, and a user input unit 1121.

The user interface manager 1119 provides a GUI (Graphic User Interface) for a user using an OSD (On Screen Display) or the like, and receives a key input from a user to perform a receiver operation according to the input.

The user input unit 1121 receives a key input from the user. At this time, the user input unit 1121 selects the wireless network connection mode from the user, and receives the user identifier and the password.

After the user input unit 1121 selects a wireless network connection mode, when a user identifier and a password are input, the controller 1118 generates an SSID and a network security key using the inputted user identifier and password.

The network manager 1104 searches for a second multimedia device matching the SSID and the network security key and establishes a wireless network connection.

At this time, the second multimedia device also receives the user identifier and the password, receives the SSID and the network password generated using the input user identifier and the password,

The service manager 1120 controls the manager associated with the service such as the service delivery manager 1106, the service discovery manager 1124, the service control manager 1126 and the metadata manager 1128 and the IG-OITF client.

The service manager 1120 also creates a channel map and selects a channel using the channel map according to the key input received from the user interface manager 1119. [ The service manager 1120 receives the channel service information from the data decoder 1110 and sets an audio / video PID (Packet Identifier) of the selected channel in the demultiplexer 1108.

The service discovery manager 1124 provides the information necessary to select a service provider that provides the service. Upon receiving the channel selection signal from the service manager 1120, the service discovery manager 1124 searches for the service using the information.

The service control manager 1126 is responsible for selection and control of the service. For example, when a user selects a service such as IGMP or RTSP when selecting a Live Broadcasting service such as an existing broadcasting method and selects a service such as VOD (Video On Demand), RTSP is used to select a service, control . The RTSP protocol may provide a trick mode for real-time streaming. Also, the service control manager 1126 can initialize and manage a session through the IMC gateway using an IP Multimedia Subsystem (IMS) and a Session Initiation Protocol (SIP). The protocols are one embodiment, and other protocols may be used, depending on the implementation.

The metadata manager 1128 manages the metadata associated with the service and stores the metadata in the service information database 1122.

The service information database unit 1122 stores the service information decoded by the data decoder 1110, the metadata managed by the metadata manager 1128, and information necessary for selecting a service provider provided by the service discovery manager 1124 . The service information database unit 1122 may store setup data and the like for the system.

The service information database unit 1122 and the content database unit 1130 can be implemented using a nonvolatile RAM (NVRAM) or a flash memory, respectively. The service information database unit 1122 and the content database unit 1130 are logically divided into two areas Can be implemented.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Modification is possible. Accordingly, the spirit of the present invention should be understood only in accordance with the following claims, and all equivalents or equivalent variations thereof are included in the scope of the present invention.

1100: IPTV system
1102: Network interface unit
1104: Network Manager
1106: Service delivery manager
1108: Demultiplexer
1110: Data decoder
1112: decoder
1116:
1117: Audio output unit
1118:
1121: user input section
1122: Service information database part
1124: Service Discovery Manager
1126: Service Control Manager
1128: Metadata manager
1130: Content database section
1301: Tuner part
1302: A / V input unit
1303: USB input
1304: Radio signal input unit
1305: Demodulator

Claims (16)

delete delete delete delete delete delete A method of connecting a wireless network of a multimedia device,
Activating a wireless network connection mode between multimedia devices in a first multimedia device;
Receiving a user identifier and a password from the first multimedia device, and generating an SSID (Service Set Identifier) and a network security key using the received user identifier and password;
Searching for a second multimedia device matching the SSID and the network password; And
Establishing a wireless network connection between the first multimedia device and the second multimedia device when the wireless network connection mode between the multimedia devices is activated in the second multimedia device
Lt; / RTI >
And the second multimedia device stores the SSID and the network security key. delete A first multimedia device that receives a user identifier and a password, and generates an SSID and a network security key using the user identifier; And
Receiving a user identifier and a password from the first multimedia device, generating an SSID (Service Set Identifier) and a network security key using the user identifier and the encryption key, And a second multimedia device for establishing a connection with the multimedia device and a wireless network,
And the second multimedia device stores the generated SSID and the network security key. 10. The method of claim 9,
When the connection between the first multimedia device and the second multimedia device is terminated and the second multimedia device is reconnected, the first multimedia device inputs the user identifier and the password and establishes a wireless network connection with the second multimedia device Characterized by a wireless network connection system. delete A first multimedia device that receives a user identifier and a password, and generates an SSID (Service Set Identifier) and a network security key using the user identifier; And
The SSID and the network security key corresponding to the user identifier and the password are generated from the storage medium connected to the first multimedia device and the first multimedia device, And a second multimedia device for establishing a wireless network connection,
And the second multimedia device stores the generated SSID and the network security key. 13. The method of claim 12,
When the connection between the first multimedia device and the second multimedia device is terminated and the second multimedia device is reconnected, the first multimedia device inputs the user identifier and the password and establishes a wireless network connection with the second multimedia device Characterized by a wireless network connection system. delete A user input unit for selecting a wireless network connection mode between multimedia devices and receiving a user identifier and a password;
A controller for generating an SSID and a network security key using the received user identifier and password; And
Searching for a second multimedia device matching the SSID and the network security key, and when the second multimedia device is activated in the wireless network connection mode between the multimedia devices, the network manager establishing a wireless network connection to the second multimedia device
Lt; / RTI >
And the second multimedia device stores the SSID and the network security key. delete

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