KR20110099920A - Method for connecting wireless network and a wireless network system thereof - Google Patents

Abstract

The present invention relates to a wireless connection method between a multimedia device and a wireless network connection system employing the method, and more particularly, to a wireless network connection method between multimedia devices and a method for establishing a wireless network connection between multimedia devices quickly and easily. It relates to a wireless network connection system employing.

Description

Wireless network connection method and wireless network connection system employing the method {METHOD FOR CONNECTING WIRELESS NETWORK AND A WIRELESS NETWORK SYSTEM THEREOF}

The present invention relates to a wireless connection method between a multimedia device and a wireless network connection system employing the method, and more particularly, to a wireless network connection method between multimedia devices and a method for establishing a wireless network connection between multimedia devices quickly and easily. It relates to a wireless network connection system employing.

The broadcasting receiver transmits content produced by a broadcaster through a radio wave transmission medium such as terrestrial, cable, or satellite broadcasting, and the user is serviced by viewing through a receiver capable of receiving the respective delivery media.

However, as digital-based digital broadcasting technology has been developed and commercialized in existing analog broadcasting, real-time broadcasting, contents on demand, games, and news using Internet networks connected to homes in addition to existing radio waves or wired cable media. It is now possible to provide a variety of content services to the user.

An example of providing a content service using the Internet network is IPTV (Internet Protocol TV). The IPTV transmits various information services, video contents, and broadcasts through an internet network and provides them to the receiver of the user. The Internet network may be implemented on various types of networks such as an optical cable network, a coaxial cable network, a fiber to the home (FTTH), a telephone network, and a wireless network based on an Internet Protocol (IP).

In the case of the service using the Internet network as described above, unlike general terrestrial broadcasting, the interactivity may be added, and the user may watch a content service that he / she wants to see at a convenient time.

On the other hand, the IPTV supports a wireless network connection function, it can be connected to the Internet network through a wireless router. In addition, IPTV can be connected to other multimedia devices that support the wireless network connection function through a wireless network. When using such a wireless network connection function, the wireless network connection setting must be performed in each device. There was this complicated and cumbersome problem.

1 is a diagram illustrating an embodiment in which a wireless network is established between multimedia devices of the prior art. Referring to FIG. 1, a multimedia device configured for wireless network connection should be set as a server or a client. Whenever a multimedia device set as a server is established, a service set identifier (SSIDSSID) and security to be recognized as a server Receive a key. In addition, the multimedia device set as the client should search for and select the multimedia device recognized as the server whenever the wireless network is connected, and receive the SSID and the security key of the multimedia device recognized as the server.

For example, when the wireless device connects to the multimedia device 2 (102) from the multimedia device 1 (101), after the user selects the wireless network connection mode from the multimedia device 1 (101), the multimedia device 1 (101) is a multimedia device 2 Entering the SSID (Service Set Identifier) to be recognized as a server at 102, and setting a password, the multimedia device 2 (101) searches for the multimedia device 1 (101), and selects the searched multimedia device 1 (101) After that, there was a hassle to enter the SSID and password.

In addition, after the multimedia device 1 101 is connected to the multimedia device 3 103 or the wireless router 104 in a wireless network, the above-described process must be performed again to establish the wireless network connection with the multimedia device 2 102. There was a problem.

Accordingly, in order to solve these problems of the prior art, a wireless network connection method between multimedia devices and a multimedia device employing the method, which can establish a wireless network connection very quickly and easily in a multimedia device supporting a wireless network connection function, will be developed. There is a need.

Accordingly, the present invention solves the above-mentioned problems of the prior art, and the wireless network connection method between the multimedia devices and the multimedia that adopts the method can be very fast and simple to set up the wireless network connection in the multimedia device supporting the wireless network connection function It is an object to provide a device.

A wireless network connection method of a multimedia device according to an 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 generating, by the second multimedia device, the SSID and the network security key using the user identifier and the password, and then establishing a wireless network connection with the first multimedia device using the generated SSID and the network security key. Characterized in that it comprises a.

In addition, the method for connecting to a wireless network of a multimedia device according to another embodiment of the present invention comprises the steps of: receiving a user identifier and a password in the first multimedia device, and 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 and establishing a wireless network connection, wherein the second multimedia device stores the SSID and the network password.

In addition, the wireless network connection system according to another embodiment of the present invention comprises a first multimedia device for 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 generating an SSID and a network security key using the user identifier and a password, and establishing a wireless network connection with the first multimedia device using the generated SSID and the network security key. .

In addition, according to another embodiment of the present invention, a multimedia device includes a user input unit for receiving a user identifier and a password; A controller configured to generate an SSID and a network security key using the received user identifier and password; And a network manager configured to search for a second multimedia device matching the SSID and the network password and establish a wireless network connection, wherein the second multimedia device stores the SSID and the network password.

The present invention has an effect that can be very fast and simple to set up a wireless network connection in a multimedia device supporting a wireless network connection function.

In addition, the present invention can establish a wireless network connection between the multimedia devices without receiving the SSID and the network security key from the user in the first multimedia device or the second multimedia device, there is an effect that enables a simple wireless network connection settings.

In addition, since the present invention generates and stores the SSID and network security key corresponding to the user identifier and password, the user identifier and password are automatically inputted by the user in the first multimedia device or the second multimedia device. The wireless network connection is established by searching for a multimedia device corresponding to a password, thereby minimizing user input. This allows users to more conveniently connect wireless devices to multimedia devices such as IPTV or digital photo frames. It has the effect of making it available.

In addition, the present invention does not input the SSID and the network security key to the first multimedia device and the second multimedia device even if the first multimedia device is connected to the second multimedia device again after being wirelessly connected to the wireless router or another multimedia device. Since only the user identifier and password are inputted, the wireless network is automatically connected. Therefore, the SSID and network security key input step of the first multimedia device, the SSID and network security key input of the second multimedia device, and the first multimedia device are compared with the prior art. The effect is that you can establish a wireless network connection without searching and selecting steps.

1 is a diagram illustrating an embodiment in which a wireless network between multimedia devices according to the related art is established.
2 is a diagram schematically showing an IPTV system as an embodiment according to the present invention;
3 is a schematic representation of a network TV system, in accordance with one embodiment of the present invention;
4 and 5 schematically show multicast and unicast schemes, respectively.
6 is a diagram illustrating a hierarchical structure for broadcasting a Content Download Service (CDS) of IPTV.
7 illustrates a network connection of multimedia devices according to an embodiment of the present invention.
8 illustrates a process of connecting a first multimedia device and a second multimedia device 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 a multimedia device in which an SSID and a network security key are generated according to an embodiment of the present invention.
10 is a diagram illustrating an embodiment in which a wireless network is connected between multimedia devices according to the present invention.
11 is a diagram illustrating an embodiment of an IPTV receiver which is a multimedia device according to the present invention.

Hereinafter, a method for connecting a wireless network between multimedia devices and a multimedia device employing the method will be described in detail with reference to the accompanying drawings.

The terms used in the present invention have been selected as general terms widely used as possible in consideration of the functions in the present invention, but may vary according to the intention or custom of a person skilled in the art or the emergence of a new technology. In addition, in certain cases, there is also a term arbitrarily selected by the applicant, in which case the meaning will be described in detail in the description of the invention. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the contents throughout the present invention, rather than the names of the simple terms.

The multimedia apparatus of the present invention is a concept including all means capable of outputting content such as an audio signal or a video signal, a video signal, an image, and includes all of a digital broadcast receiver, an MP3 player, an audio player, a Blu-ray player, a digital picture frame, and the like. do. Here, the digital broadcast receiver refers to a broadcast receiver capable of receiving digital broadcast transmitted by digital video and audio signals. Here, unlike conventional analog broadcasting, digital broadcasting refers to a broadcasting technology capable of two-way operation, reproduction, and accumulation because the television signal is compressed and exported in a digital form that encodes and records information signals. Compared to analog broadcasting, such digital broadcasting is more resistant to noise, has a lower data loss, and transmits additional error correction information, which is advantageous for error correction, and provides a high resolution and clear picture. In addition, unlike analog broadcasting, digital broadcasting is an interactive service capable of receiving a broadcasting service from a broadcasting station and providing information to the broadcasting station. In the present invention, the digital broadcast is used as a concept that includes not only broadcasts transmitted through terrestrial waves, satellites and cables, but also broadcasts transmitted through Internet networks. That is, digital broadcasting is defined as a concept including IP (Internet Protocol) broadcasting. In addition, in the present invention, the digital broadcast receiver includes a broadcast receiver capable of providing an Internet service to a viewer. The Internet service includes content services such as CoD (Content's on Demand), YouTube service, weather, news, local information and search, entertainment services such as games and karaoke, TV mail, and TV SMS (Short Message Service). This means a service that can be provided through the Internet. Accordingly, in the present invention, the digital broadcast receiver includes a network TV, a web TV and a broadband TV. In addition, the broadcast service may include an internet service as well as a broadcast service provided through terrestrial, satellite, and cable.

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

The servers of the IPTV are servers that perform various functions such as service discovery and selection server, streaming server, contents guide information server, customer information server, and payment information server. It can be configured as.

Among the servers, the streaming server transmits video data encoded in the stored Moving Picture Experts Group (MPEG) 2, MPEG4, etc. to the user through a network. As a protocol for the transmission, a Real-Time Transport Protocol (RTP), a RTP Control Protocol (RTP), or the like may be used.

In case of using Real-Time Streaming Protocol (RTSP), video stream playback can be controlled to some extent through a function called network trick play such as pause, replay, and stop. . The protocols are one example and other real time transmission protocols may be used depending on the implementation.

The content guide information server is a server that provides information on the various contents provided. The content guide information is information corresponding to electronic program guide (EPG) information and includes various information about content. The content guide information server stores content guide information data, and provides the stored data to the receiver.

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

The network system consists of an internet based network and gateways. The Internet-based network may use various types of networks such as an optical cable network, a coaxial cable network, a fiber to the home (FTTH), a telephone network, a wireless network, and the like based on IP. In addition to general data transfer, the gateway may perform multicast group management and quality of service (QoS) management using protocols such as Internet Group Management Protocol (IGMP).

A receiver of an IPTV is a receiver capable of receiving data transmitted through an internet network and providing the same to a user. The receiver includes an IPTV settop, a homenet gateway, an IPTV embedded TV, and the like.

In the case of a hybrid IPTV system, various contents of the Internet may be provided as well as various existing broadcasting contents. That is, the user can provide various broadcasting contents such as terrestrial broadcasting, cable broadcasting, satellite broadcasting, personal broadcasting, various internet video contents, data contents other than video, and the like. The contents may be provided in real time or may be provided on demand.

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

2, in terms of providing a content service, 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. As shown in FIG. 1, the content provider includes a terrestrial broadcaster, a cable SO, or a MSO, a satellite broadcaster, and an internet broadcaster. (Internet broadcaster) and the like.

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

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

Conditional access, content protection, or the like may be used as a means for protecting the content transmitted from the IPTV system. As one example for the above-mentioned restriction reception or content protection, a method such as a cable card or a downloadable conditional access system (DCAS) may be used.

3 is a diagram schematically illustrating 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 digital broadcasts and receiving and providing Internet services to viewers. Network TV may be referred to as broadband TV and includes web TV. The web TV is a digital broadcast receiver that receives and provides an internet service based on the web.

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

In addition, the network TV not only can receive a broadcast service through the Internet, but also can receive a broadcast service from a terrestrial broadcaster through terrestrial broadcast, and is capable of a cable SO (cable system operator) through a cable. Alternatively, a broadcast service may be received from an MSO (Multiple System Operator), or a broadcast service may be received from a satellite broadcaster through a satellite.

The digital broadcast receiver may receive a broadcast service from a service provider or a content provider using a unicast or multicast scheme.

4 and 5 are schematic diagrams for the multicast and unicast schemes, respectively.

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

FIG. 6 is a diagram illustrating a hierarchical structure for broadcasting a Content Download Service (CDS) of IPTV.

Referring to FIG. 6, the service provider delivers data contents for CDS to an IPTV receiver using a transport protocol. The delivered data content for CDS is stored in the storage of IPTV. The stored data contents for CDS can be executed at the request of the user or the like. Here, the transport protocol may be FLUTE (File Delivery over Unidirectional Transport) mounted on ALC / LCT over IP / UDP, DVB-STP, DVB data / object carousel, File Transfer Protocol (FTP), HTTP (hypertext transfer). protocol) and the like, and the above-described protocol may use other transmission protocols as an example.

When FLUTE is used as the transport protocol, the presence or absence of a CDS service may be known to an IPTV receiver through service discovery and selection (SD & S), and the details of the content may include metadata in a TV Anytime format. Can be found through:

Data contents for CDS may include various types of contents such as A / V contents, data contents, and game contents.

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

In addition, the digital broadcast receiver of the present invention including an IPTV may be wirelessly connected to other multimedia devices, and a process of wirelessly connecting to another multimedia device from a multimedia device including a digital broadcast receiver will be described in detail below.

7 illustrates a network connection of multimedia devices according to an embodiment of the present invention.

Referring to FIG. 7, a first multimedia device according to an embodiment of the present invention may be connected to a wireless router 704 via a wireless access point (WAP), or may be connected to an ad hook (without a wireless access point connection). Ad-Hoc) may be connected to the second multimedia device 702 or 703 in a wireless network.

At this time, the wireless network connection is based on Wi-Fi, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee communication standards. Therefore, it can be networked with other electronic devices.

At this time, the first multimedia device to be connected to the wireless network should be set as a server or a client, the first multimedia device to be set as a server must be set to the SSID (Service Set Identifier) and network security key to be recognized as a server, the client The second multimedia device 702 or 703 configured to be searched for the first multimedia device by a server and connected to a wireless network.

8 is a diagram illustrating a process of connecting a first multimedia device and a second multimedia device to a wireless network according to one embodiment of the present invention.

Referring to FIG. 8, in operation S801, a first multimedia device according to an embodiment of the present invention receives a wireless network connection mode for a wireless network connection between multimedia devices from a user.

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

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

For example, the controller 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 input 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 then establishes a wireless network connection in step S805. In this case, the first multimedia apparatus may be set as a server to establish a wireless network connection.

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

In operation S807, the second multimedia apparatus receives a user identifier and a password, and generates an SSID and a network security key using the user identifier and the password input in operation S808.

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

In this case, the first multimedia device and the second multimedia device may generate the SSID and the network security key using the user identifier and the password in the same manner.

In addition, according to an embodiment, the second multimedia device does not receive the user identifier and password from the user in step S807, and receives the user identifier and the password from the first multimedia device, or stores the connection to the second multimedia device. It can be read from a medium (eg, CD, USB, etc.) and the SSID and network security key can be generated from the read user identifier and password.

In addition, according to an embodiment, the second multimedia apparatus does not generate the SSID and the network security key in step S808, and receives the user identifier and password, the SSID and the network security key from the first multimedia apparatus. Alternatively, the user identifier and password, the SSID, and the network security key connected to the second multimedia device may be read from the storage medium.

Next, the second multimedia device stores the input user identifier and password, the generated or input or read SSID and the network security key in the storage means, and searches for the server (first multimedia device) set to 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 to establish a wireless network connection with the first multimedia device set as the 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 generating an SSID and a network security key according to another embodiment of the present invention.

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

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

Next, in step S904, the first multimedia device selects a data encryption method and establishes a wireless network connection. In this case, the first multimedia apparatus may be set as a server to establish a wireless network connection.

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

In operation S906, the second multimedia apparatus receives a user identifier and a password, and retrieves, in the storage means, the SSID and the network security key corresponding to the user identifier and the password input in operation S907.

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

According to an embodiment, the second multimedia device does not generate the SSID and the network security key in step S808, and receives the user identifier and password, the SSID and the network security key from the first multimedia device, or the second multimedia device. The user identifier and password, SSID and network security key 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. In this case, the second multimedia apparatus may be set as a client and establish a wireless network connection with the first multimedia apparatus set as the server.

10 is a diagram illustrating an embodiment in which a wireless network is connected between multimedia devices according to the present invention.

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

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

Therefore, the present invention can set the wireless network connection between the multimedia devices without receiving the SSID and the network security key from the user in the first multimedia device or the second multimedia device, it is effective to enable a simple wireless network connection settings.

In particular, the present invention generates and stores the SSID and the network security key corresponding to the user identifier and password, so that the user identifier and password is automatically inputted by the user in the first multimedia device or the second multimedia device. The wireless network connection is established by searching for a multimedia device corresponding to a password, thereby minimizing user input. This allows users to more conveniently connect wireless devices to multimedia devices such as IPTV or digital photo frames. It has the effect of making it available.

In addition, according to the present invention, even after the first multimedia device 1001 is wirelessly connected to the wireless router 1004 or another multimedia device 1003 and then connected to the second multimedia device 1002, the first multimedia device and the second multimedia device 1001 may be used. Entering the SSID and network security key in the first multimedia device, compared to the prior art, since the wireless network is automatically connected to the multimedia device without inputting the SSID and network security key, only the user identifier and password are input. The SSID and network security key input, the first multimedia device has the effect of establishing a wireless network connection without the step of searching and selecting.

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

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

The tuner 1301 selects an RF broadcast signal corresponding to a channel selected by a user from among radio frequency (RF) broadcast signals received through an antenna, and converts the selected RF broadcast signal into an intermediate frequency signal or a baseband video or audio signal. To convert. For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal (DIF). If the analog broadcast signal is converted into an analog baseband video or audio signal (CVBS SIF). That is, the tuner 1301 may process a digital broadcast signal or an analog broadcast signal.

Also, the tuner 1301 may receive an RF broadcast signal of a single carrier according to an Advanced Television System Committee (ATSC) scheme or an RF broadcast signal of multiple carriers according to a digital video broadcasting (DVB) scheme.

The demodulator 1305 receives the digital IF signal DIF converted by the tuner 1301 to perform a demodulation operation. For example, when the digital IF signal output from the tuner 1301 is an 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 scheme, the demodulator 820 demodulates a carded orthogonal frequency division modulation (COFDMA).

In addition, the demodulator 1305 may perform channel decoding. To this end, the demodulator 1305 includes a trellis decoder, a de-interleaver, a reed solomon decoder, and the like. Soloman decryption can be performed.

The demodulator 1305 may output a stream signal TS after performing demodulation and channel decoding. In this case, the stream signal may be a signal multiplexed with a video signal, an audio signal, or a data signal. 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 may connect the external device to the IPTV receiver 1100. The external device refers to various types of video or audio output devices such as a digital versatile disk (DVD), a Blu-ray, a game device, a camcorder, a computer (laptop), and the like.

The A / V input unit 1302 of the signal input unit includes an Ethernet terminal, a USB terminal, a Composite Video Banking Sync (CVBS) terminal, so that video and audio signals of an external device can be input to the digital broadcast receiver 1100. 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, Liquid HD terminal, etc. It may include. The analog signal input through the CVBS terminal and the S-video terminal may be converted into a digital signal and input. Digital signals input through other input terminals may be input without an analog / digital conversion process.

The USB input unit 1303 may input a video and audio signal through a USB terminal.

The wireless signal input unit 1304 may connect the IPTV receiver 1100 to a wireless network. The IPTV receiver 1100 may be connected to the wireless Internet through the wireless signal input unit 1304. For wireless Internet access, wireless LAN (Wi-Fi), wireless broadband (Wibro), world interoperability for microwave access (Wimax), high speed downlink packet access (HSDPA) communication standards, and the like may be used. In addition, the wireless signal input unit 1304 may perform short-range wireless communication with another multimedia device. For example, it may be networked with other electronic devices according to Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee communication standards.

In addition to the wireless signal input unit 1304, via an Ethernet terminal, or the signal input unit further includes a network unit for efficient network connection and management, the network unit to the IPTV receiver 1100 PSTN, LAN, CABLE, etc. It can be connected to the network.

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

Therefore, the IPTV receiver according to the present invention can process signals transmitted through wired and wireless networks, as well as broadcast signals through radio wave media and signals by external input devices. That is, the IPTV receiver according to the present invention can receive broadcast data provided by a service providing server through a network and can communicate with a multimedia device. For example, the signal input unit may transmit and receive a multimedia device search signal, a playback information request signal, and playback information through a wired or wireless network.

In addition, the IPTV receiver 1100 may include a network interface 1102, a network manager 1104, a service delivery manager 1106, a demultiplexer 1108, a data decoder 1110, a decoder 1112, a display 1116, The controller 1118, the service information database unit 1122, the service discovery manager 1124, the service control manager 1126, the metadata manager 1128, and the content database unit 1130 may be included.

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

The network manager 1104 is involved in packet forwarding from the source to the destination for the packet received by the IPTV receiver 1100 and the packet transmitted by the IPTV receiver 1100. The network manager 1104 classifies the received packet to correspond to an appropriate protocol, and classifies the packet into a service delivery manager 1106, a service discovery manager 1124, a service control manager 1126, and a metadata manager 1128. Outputs

The service delivery manager 1106 is responsible for controlling the received service data. For example, when controlling real-time streaming data, RTP / RTCP (Real-Time Transport Protocol / RTP Control Protocol) may be used. When transmitting the real time streaming data 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 under the control of the service manager 1120. Therefore, the content is stored in the content database unit 1130. Then, the RTCP is used to feed back the network reception information to a server that provides a service.

The demultiplexer 1108 demultiplexes the received packet into audio, video, program specific information (PSI) data, and the like, and transmits the demultiplexer 1108 to the decoder 1112 and the data decoder 1110, respectively.

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

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

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

The controller 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 graphical user interface (GUI) for a user using an OSD (On Screen Display), etc., 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. In this case, the user input unit 1121 may select a wireless network connection mode from a user, and receive a user identifier and a password.

After the wireless network connection mode is selected by the user input unit 1121, if a user identifier and a password are input, the controller 1118 generates an SSID and a network security key using the input user identifier and password.

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

In this case, the second multimedia device may also receive a user ID and a password after selecting and inputting all wireless network connections from the user, and store the SSID and the network password generated using the input user identifier and password.

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

In addition, the service manager 1120 creates a channel map and selects a channel using the channel map according to a key input received from the user interface manager 1119. The service manager 1120 receives service information of a channel from the data decoder 1110 and sets the audio / video PID (packet identifier) of the selected channel to the demultiplexer 1108.

The service discovery manager 1124 provides information necessary to select a service provider providing a service. Upon receiving a signal for channel selection from the service manager 1120, the service discovery manager 1124 uses the information to find a service.

The service control manager 1126 is responsible for selecting and controlling a service. For example, if a user selects a live broadcasting service like the conventional broadcasting method, IGMP or RTSP is used. If a user selects a service such as VOD (Video On Demand), RTSP is used to select and control the service. Perform The RTSP protocol may provide a trick mode for real time streaming. In addition, the service control manager 1126 may initialize and manage a session through the IMC gateway using an IP Multimedia Subsystem (IMS) or a Session Initiation Protocol (SIP). The protocols are one embodiment, and other protocols may be used depending on implementation.

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

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

The service information database unit 1122 and the content database unit 1130 may be implemented using nonvolatile memory (NVRAM) or flash memory, respectively, and are divided into two logically separated areas on the same storage area. Can be implemented.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to 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: display unit
1117: audio output unit
1118: control unit
1121: user input unit
1122: service information database unit
1124: Service Discovery Manager
1126: service control manager
1128: metadata manager
1130: content database unit
1301: tuner section
1302: A / V input
1303: USB input
1304: wireless signal input unit
1305: demodulator

Claims (16)

In the wireless network connection method of the multimedia device,
A first step of receiving a user identifier and a password from a first multimedia device and generating a service set identifier (SSID) and a network security key using the user identifier; And
A second step of generating the SSID and the network security key by using the user identifier and the password in a second multimedia device and establishing a wireless network connection with the first multimedia device by using the generated SSID and the network security key;
Wireless network connection method of the multimedia device comprising a. The method of claim 1,
The second step comprises:
Receiving the user identifier and the password at the first multimedia device;
Wireless network connection method of the multimedia device further comprising a. The method of claim 1,
The second step comprises:
Receiving the user identifier and password from the first multimedia device
Wireless network connection method of the multimedia device further comprising a. The method of claim 1,
The second step is
Reading the user identifier and password from a storage medium connected to the second multimedia device
Wireless network connection method of the multimedia device further comprising a. The method of claim 1,
The first step or the second step
Receiving a wireless network connection mode between the multimedia devices;
Wireless network connection method of the multimedia device further comprising a. The method of claim 1,
The first step,
Storing the input user identifier, password and the generated SSID and network security key
Wireless network connection method of the multimedia device further comprising a. In the wireless network connection method of the multimedia device,
Receiving a user identifier and a password from the first multimedia device and generating a service set identifier (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 and establishing a wireless network connection;
Including,
And the second multimedia device stores the SSID and a network password. The method of claim 7, wherein
Receiving a selection of a wireless network connection mode between multimedia devices in the first multimedia device;
Wireless network connection method of the multimedia device further comprising. 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
A second multimedia device for generating a service set identifier (SSID) and a network security key using the user identifier and a password, and establishing a wireless network connection with the first multimedia device using the generated SSID and the network security key
Wireless network connection system comprising a. 10. The method of claim 9,
The second multimedia device, the wireless network connection system, characterized in that for receiving the user identifier and password from the first multimedia device. 10. The method of claim 9,
The second multimedia device is a wireless network connection system, characterized in that for receiving the user identifier and password from the first multimedia device. 10. The method of claim 9,
And the second multimedia device reads the user identifier and password from a storage medium connected to the second multimedia device. 10. The method of claim 9,
The first multimedia device or the second multimedia device is a wireless network connection system, characterized in that the selection of the wireless network connection mode between the multimedia devices. 10. The method of claim 9,
The first multimedia device, the wireless network connection system, characterized in that for storing the input user identifier, password and the generated SSID, network security key. A user input unit for receiving a user identifier and a password;
A controller configured to generate 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 that matches the SSID and network password and establishing a wireless network connection.
Including,
And the second multimedia device stores the SSID and the network password. 16. The method of claim 15,
And the user input unit selects a wireless network connection mode between multimedia devices.

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