KR101003667B1 - System and method for providing user service using broadcasting system - Google Patents

Abstract

The present invention relates to a system and method for providing a user service using a broadcasting network that can effectively provide various user services other than a broadcasting service through a broadcasting network. The present invention relates to information related to broadcast content, information to be delivered to a user, or information requested by a user. Or by converting a control message including a command for controlling a remote device into an audio signal format of broadcast content, transmitting the same through a broadcasting network, and processing the audio signal together with an audio signal and outputting the same through a speaker. User service information other than the broadcast service can be delivered to the user without receiving the transmitted control message from a remote device independent of the broadcast receiving device, and various kinds of information can be outputted or a corresponding command can be executed. It is possible to appropriately provide the necessary services to the user without disturbing other viewers' viewing of the broadcast broadcast screen.

Broadcasting Systems, Remote Devices, MPEG 2, Control Messages, Broadcasting Networks, Audible Frequency Bands

Description

System and method for providing user service using broadcasting network {System and method for providing user service using broadcasting system}

The present invention relates to a user service providing system and method using a broadcasting network that can effectively provide various user services other than a broadcasting service through a broadcasting network.

Recently, with the diversification of broadcasting media and advancement of broadcasting technology, various broadcasting services such as IPTV (Internet Protocol TV) service, DTV (Digital TV) service, Internet broadcasting, etc. are provided in addition to over-the-air broadcasting service. Broadcast program is in service.

Among them, Internet broadcasting, which broadcasts broadcast programs through Internet lines, IPTV, which provides multimedia services such as television, video, audio, text, and data to users through IP network, and digital video and audio signals. In the case of a DTV service or the like, the number of broadcast channels and broadcast programs provided is larger than that of terrestrial broadcasts. Therefore, when a user wants to obtain necessary information, it is inconvenient to select several items through a complicated menu.

In order to alleviate the inconvenience of users, menus such as accessibility and easy-to-use menu navigation have been proposed, but these methods are also provided by utilizing a part of the screen on which the program is being aired, thereby preventing immersion into the currently airing program. Done.

In addition, in the case of the IPTV or the DTV, bidirectional communication is possible, and thus, various user services are provided that can participate in a program currently being broadcast or interwork with a program currently being broadcast.

However, these services also have to use a part of the screen on which the program is aired to provide a guide screen or information, thereby preventing the immersion into the currently airing program.

Therefore, if there is a way to provide additional information or services without interrupting the viewing of currently aired programs or advertisements, it is expected to increase the added value of the broadcasting business and create a new profit model while enhancing the user's convenience. do.

For example, if a commercial is available, and you can provide information related to the subject of the advertisement (such as price or discount) without interfering with the viewing of the broadcasted advertisement, you can increase the effectiveness of the advertisement and thereby generate new revenue. Creation will be possible.

Accordingly, the present invention is to solve the inconvenience of the user, such as interrupting the viewing of the currently airing program, since information other than the broadcast program must be provided through the same TV screen in the related art. An object of the present invention is to provide a system and method for providing a user service using a broadcasting network capable of effectively providing a user with various additional services other than a broadcast service without disturbing viewing.

In addition, the present invention provides a user service using a broadcasting network that can effectively provide various additional services other than the broadcasting service to the user through the broadcasting network without changing the existing broadcasting system, in particular without changing or additional configuration of the broadcast receiving device. It is intended to provide a system and method.

In addition, the present invention is to provide a system and method for providing a user service that can further enhance the broadcasting effect or advertising effect by appropriately responding to a program or advertisement being broadcast without interrupting the viewing of the broadcast.

According to an aspect of the present invention, there is provided a remote control server for constructing a control message by acquiring a command to control the operation of a remote device and information related to broadcast content or requested by the user to a user who uses a broadcast service. ; A broadcast server for transmitting the control message configured at the remote control server together with the broadcast content through a broadcast network; A broadcast receiving device which receives the broadcast content and the control message, reproduces the broadcast content so that a user can view it, and transmits the control message to a remote device; And a remote device that receives the control message transmitted through the broadcast receiving device and outputs the information included in the control message in a specified form or performs the control command.

In the user service providing system, the broadcast receiving device and the remote device transmit and receive the control message through an audible frequency boundary band.

In the user service providing system using the broadcasting network, the control message is transmitted as a signal having the same format as the audio signal of the broadcasting content.

In addition, in the user service providing system using the broadcasting network, the remote control server encodes the control message into an elementary stream (ES), packetizes the ES into a packetized ES (PES), and then TS suitable for transmission. And a digital generator for generating a transport stream.

According to an embodiment of the present invention, the broadcast server may include: a digital generator that encodes the control message into an ES, packetizes the ES into a PES, and generates a TS for a control signal suitable for transmission; An audio encoder for generating an audio ES by encoding the audio signal of the broadcast content together; A video encoder for generating a video ES by encoding a video signal of broadcast content; An audio packetizer for packetizing the audio ES into an audio PES; A video packetizer for packetizing the video ES into a video PES; And a TS multiplexer for multiplexing the audio PES and the video PES to generate a TS for a broadcast signal suitable for transmission.

According to another embodiment of the present invention, the broadcast server includes: an audio encoder for generating an audio elementary stream (ES) by encoding a control message modulated into an analog signal of an audible frequency boundary band and an audio signal of broadcast content together; A video encoder for generating a video ES by encoding a video signal of broadcast content; An audio packetizer for packetizing the audio ES into an audio packetized ES; A video packetizer for packetizing the video ES into a video PES; And a TS multiplexer for multiplexing the audio PES and the video PES to generate a transport stream (TS) suitable for transmission. In addition, in the another embodiment, the broadcast server may generate the control message using an audible frequency. It may further include an analog modulator for modulating the analog signal of the boundary band.

In another embodiment, the remote control server may include an analog modulator for modulating the control message into an analog signal of an audible frequency boundary band and outputting the analog signal to the broadcast server.

In the user service providing system using the broadcasting network according to the present invention, the broadcast receiving device receives the audio signal of the control message and the broadcast content together, decodes the analog signal, and outputs the same through a speaker. It is done.

A system for providing a user service using the broadcasting network, the remote apparatus comprising: a microphone configured to receive signals of an audible frequency and an audible frequency boundary band output from the broadcast receiving device; An extraction unit for extracting a signal of an audible frequency boundary band from the signal received by the microphone; A demodulator for demodulating a signal of an audible frequency boundary band extracted by the extractor into a control message; And an execution unit for analyzing the control message output from the demodulator and outputting the information included in the control message or performing the indicated control command.

The remote device may be implemented by any one of a mobile phone, a personal computer (PC), a robot, a portable device, a toy, a remote controller, and a home appliance.

In the user service providing system using the broadcasting network, the control message includes a preamble, a destination device identifier (DD_ID), a source device identifier (SD_ID), and a message type (Msg_Type). ), Data, and a cyclic redundancy code (CRC). In addition, the message type includes: a code value defining a format of a control message; A length value specifying a length of the data; And an extended display value indicating whether the contents of the data are connected with the contents of the message.

In addition, the present invention as another means for solving the problem, the user using the broadcast service is related to the broadcast content, the information to be delivered to the user, the information requested by the user and the command to control the operation of the remote device to collect and control Constructing a message; Converting the control message into an audio signal format of broadcast content and transmitting the same through a broadcast system; And receiving, by the remote device implemented independently from the broadcast receiving device, the control message output through the speaker of the broadcast receiving device, outputting the information included in the control message in a specified form, or performing a command contained in the control message. A method of providing a user service using a broadcasting network is provided.

According to an embodiment of the present invention, in the method of providing a user service using the broadcasting network, the control message may include announcements, disaster broadcasting, weather information, traffic information, information of currently broadcasted contents, advertisements currently being broadcasted, and the like. One of the related additional information may be included.

According to another embodiment of the present invention, a method for providing a user service using a broadcasting network according to the present invention may include: checking whether a user receives a broadcast signal before constructing the control message; And confirming that the subscriber identified as receiving the broadcast signal has a remote device capable of receiving a control message, and if the remote device is provided, executing the step of constructing the control message. can do.

In a method of providing a user service using a broadcasting network according to another embodiment of the present invention, the control message may be any one of newly received e-mail information to the user, financial notification information to be transmitted to the user, music, or an image file. It is characterized by including.

Also, in the method for providing a user service using a broadcasting network according to another embodiment, the configuring of the control message may be performed by collecting the email information or the financial notification information in association with an email server or a financial server. .

In addition, in the user service providing method using a broadcasting network according to the present invention, the step of converting the control message into the audio signal format of the broadcast content, and transmitting through the broadcast system, the control message is an analog signal of an audible frequency boundary band Modulating the signal into an audio elementary stream (ES) by mixing the control message modulated with the analog signal with an audio signal of broadcast content, and packetizing the audio ES into an audio PES; Combining the audio PES with the video PES of the broadcast content to form a transport stream (TS) suitable for transmission, or encoding the control message into an ES of an audio format and packetizing the PES, The control signal may be generated by the PES and transmitted to a broadcasting network.

In the method of providing a user service using the broadcasting network, the control message may include a preamble, a destination device identifier (DD_ID, a destination device identification), a source device identifier (SD_ID, a source device identification), a message type (Msg_Type), Data and a cyclic redundancy code (CRC), wherein the message type comprises: a code value defining a format of a control message; A length value specifying a length of the data; And an extended display value indicating whether the contents of the data are connected with the contents of the message.

In addition, in the user service providing method using a broadcasting network according to the present invention, the remote device may be implemented by any one of a mobile phone, a personal computer (PC), a robot, a portable, a toy, a remote control, and a home appliance. Outputting the information included in the control message in a specified form, or performing a command contained in the control message, outputting the information contained in the control message in the form of video, video, audio, or in accordance with the command indicated in the control message It may be implemented by controlling the operation of the robot.

The user service providing system using the broadcasting network according to the present invention is implemented simply and inexpensively without changing the broadcasting system, and can provide various user services other than the broadcasting service to the user who receives the broadcasting through the broadcasting network. By providing information or services related to programs and advertisements that are broadcasted, there is an effect of further enhancing broadcasting and effects.

In addition, the present invention, by providing a service through a remote device that is implemented separately from the broadcast receiving device, there is an effect that can provide a quality service to the user without disturbing the viewing of the broadcast as before.

In addition, since the present invention can use various types of remote devices to provide a service, it is possible to provide a new profit model to a broadcaster while broadening user selection.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing in detail the operating principle of the preferred embodiment of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . In addition, the term 'comprising' a certain component means that the component may be further included, without excluding the other component unless specifically stated otherwise.

1 is a block diagram showing the basic configuration of a user service providing system using a broadcasting network according to an embodiment of the present invention.

Referring to FIG. 1, a user service providing system according to the present invention includes a remote control server 11, a broadcast server 12, a broadcast network 15, a broadcast receiving device 16, and a remote device 17. It includes. In addition, various servers such as a mail server 13 for transmitting user e-mail and a financial server 14 for payment processing may be further included in order to process additional information for user service.

Here, the broadcast server 12, the broadcast network 15, and the broadcast reception device 16 are broadcast reception systems for providing a broadcast service to a user, and the remote control server 11 may be implemented in a form included in the broadcast reception system. It may be configured independently or may be implemented in the form of interworking with the broadcast receiving system.

Each component illustrated in FIG. 1 will be described in more detail as follows.

The remote control server 11 configures a control message to be transmitted to the remote device 17 in cooperation with other servers, that is, the broadcast server 12, the mail server 13, and the financial server 14, and the control message. The signal is converted into a signal that can be received by the remote device 17 and transmitted through the broadcasting network 15. The control message includes information and commands related to a service to be provided to a user, and the structure and contents thereof will be described later in more detail.

The broadcast server 12 is a server that provides a broadcast service by transmitting a broadcast signal through a broadcast network in a general broadcast service system. In an embodiment of the present invention, the broadcast server 12 may not only transmit broadcast signals. It may also include a function for managing subscriber information. In particular, in the case of the DTV broadcasting system and the IPTV broadcasting system, the broadcasting server 12 may include a function of checking which channel the subscriber is currently receiving through a return channel, and receiving and processing a request of the subscriber. have.

In the present embodiment, the remote control server 11 and the broadcast server 12 is shown to be implemented independently, in contrast, the remote control server 11 and the broadcast server 12 is to be implemented as a single server Can also be.

Next, the broadcast network 15 includes all networks capable of broadcasting services, and transmits the broadcast signal transmitted from the broadcast server 12 and the control message transmitted from the remote control server 11 to the user side. For example, the broadcasting network 15 is implemented with a digital CATV network, a digital terrestrial broadcasting network, an IP network, or the like.

The broadcast receiving device 16 is a device for receiving a broadcast signal transmitted through the broadcast network 15 so that a user can view it, wherein the broadcast receiving device 16 is remotely transmitted along with the broadcast signal. The control message of the control server 11 is received and transmitted to the remote device 17. The broadcast receiving device 16 may be implemented as, for example, a set-top box for a DTV and an IPTV and a TV, a PC, or a portable device having a broadcast receiving function. There is also.

The remote device 17 receives the control message transmitted from the remote control server 11 through the broadcast network 15 and the broadcast receiving device 16, and provides a service directed to the user according to the received control message. A device for providing, for example, guides a user with information related to a program or advertisement that is being broadcast, or performs an instructed operation command. The remote device 17 may be implemented as any electronic device as long as it has a function capable of receiving and processing a control message transmitted from the remote control server 11, and the remote device 17 may have a capability or a resource. Therefore, the type of service provided varies. For example, the remote device 17 may be implemented as a robot, a toy, a desktop or a notebook PC, a remote controller, a mobile phone, and the like, and in the case of a mobile phone, information on a control message may be output to a screen or music may be used. A service for storing and reproducing is possible, and in the case of a PC, various multimedia services are possible, and in the case of a robot, a service for allowing the robot to take a specific action is possible.

In constructing the user service providing system using the broadcasting network described above, the most important part is the communication method between the broadcast receiving device 16 and the remote device 17 and the method of configuring the control message.

First, the communication method between the broadcast receiving device 16 and the remote device 17 will be described. Since the user service providing system according to the present invention uses an existing broadcasting network system, it is most preferable not to change the existing broadcasting system as much as possible, which is how to implement a communication scheme between the broadcast receiving device 16 and the remote device 17. It depends on whether it is. For example, the communication section between the broadcast receiving device 16 and the remote device 17 may be implemented in a wireless LAN, Bluetooth, or ZigBee manner. In this case, the broadcast receiving device 16 and the remote device ( 17) a separate device for transmitting and receiving control messages should be added, and the control message sent by the remote control server 11 should be sent to the remote device 17 after the broadcast receiving device 16 has received it once. Complex processing is required, such as only extracting and sending information separately. Since the configuration of the existing broadcast receiving device 16 needs to be changed, a problem may occur in terms of utilization or cost of the broadcast receiving device 16 already installed in the home.

Accordingly, in the present invention, in order to implement a system inexpensively and simply without changing the structure of the existing broadcast receiving apparatus, a signal is transmitted by using a TV speaker that outputs an audio signal or a speaker of an audio system on the subscriber side. Give way. More specifically, in the present invention, when transmitting a control message through a speaker, in order not to interfere with a normal audio signal, a frequency other than an audible frequency that is not recognizable by a human being is used or the amplitude of the signal is not recognizable by a human. Send a control message. The communication method between the broadcast receiving device 16 and the remote device 17 proposed in the present invention will be referred to as an audio frequency boundary band communication method.

2 is a diagram illustrating an audio frequency boundary band communication method according to the present invention.

Referring to FIG. 2, an audible frequency that a human can recognize among signals generated from a general speaker is up to approximately 15 KHz. Therefore, in order not to affect the audio signal generated by the broadcast receiving device 16, a band other than an audible frequency, that is, a frequency of 15 KHz or later should be used.

In addition, when looking at the frequency characteristics of a signal generated from a general speaker, the signal characteristics are satisfactory up to 20KHz, but the signal characteristics rapidly decrease from 20KHz or less. Therefore, the performance as a communication channel cannot be guaranteed at 20KHz or higher, and if the signal strength is increased to ensure the communication performance for a signal above 20KHz, it may affect the animals and the harmonics (harmonics) Violations in the audio frequency range can occur, causing a great deal of discomfort in the human ear.

Therefore, in the present invention, for the communication between the broadcast receiving device 16 and the remote device 17, the 15 to 25 KHz band, which is an audible frequency boundary band, is used, and further, to ensure communication performance without increasing signal strength. In order to spread the signal to the 15 ~ 25 KHz band.

Next, in the user service providing system using the broadcasting network according to the present invention, a message format of a control message for transmitting information between the remote control server 11 and the remote device 17 will be described.

3 shows the format of a control message between a remote control server 11 and a remote device 17 according to the invention.

Referring to FIG. 3, a control message according to the present invention includes a preamble, a destination device identifier (DD_ID, a destination device identification), a source device identifier (SD_ID, a source device identification), a message type (Msg_Type), and data ( Data), and Cyclic Redundancy Code (CRC).

The preamble is the first 8 bytes of the control message and is used to obtain bit sync and byte sync at the remote device 17.

The destination device identifier (DD_ID) and the source device identifier (SS_ID) are six byte fields, respectively, and are a destination address and a source address of a control message, that is, an address of the remote device 17 and an address of the remote control server 11. Indicates.

The message type (Msg_Type) is a field that specifies the format of the control message with a length of 2 bytes, and may include 8 bits of code, 7 bits of length (Length, Len), and 1 bit of extended indication (More, M). have. In the above description, a code is a value defined for each type of control message, and describes whether the content of the message is a command to request a remote device, a response provided by the remote device, data to be stored, and the like. do. For example, 0x00 is the command, 0x01 is the response to the command, 0x02 is the character to be displayed on the screen, 0x03 is the sound to be output to the speaker, 0x04 is the robot's motion, 0x05 is the music file, and 0x06 is the image file. The length field indicates the length of the data field following the message type field, that is, the length of the message. The length field includes 7 bits and has a value of 0 to 127. The length field is required because the amount of data to be transmitted may vary depending on the message, so that the control message preferably has a variable length. In addition, the extended display (M) indicates whether the contents of the data field are connected to those in the message. For example, when 1 indicates that the contents of the message follow the data field, and when 0, This indicates that the content of the file is the last one so that a long message can be sent.

Next, the Data field is a field in which data defined in the above-described message type Msg_type is loaded. For example, information to be output to the speaker, text information, video information, robot motion information, and memory are stored. Contains music or video files to save.

Finally, the CRC is a check field for checking whether an error occurs during transmission in order to improve transmission performance.

As such, by defining the format of the control message, the present invention enables efficient transmission of information and commands for performing various services between the remote control server 11 and the remote device 17.

Since the control message described above is output together with the broadcast audio signal through the speaker of the broadcast receiving device 16, it should be carried in the packet of the broadcast audio signal. Since it is an MPEG2 method adopted by many digital broadcasts, it will be described by taking this as an example.

In the case of the MPEG2 method, the entire process of creating a transport stream (TS) is included in a process of encoding an analog video / audio signal to be broadcast. In brief, when the MPEG2 scheme is adopted, an analog video / audio signal is first encoded into a digital signal, an ES (Elementary Stream) is formed, and the generated ESs are packetized into a PES (Packetized ES). After the video PES and the audio PES are multiplexed to generate a TS, the TS is transported through a broadcasting network.

Accordingly, the system of the present invention packetizes the control message into a PES of the same format as the audio signal, and then transmits the control message to the TS and transmits the control message to the TS. present.

4 is a diagram illustrating a method of transmitting a control message to a TS in a user service providing system using a broadcasting network according to the present invention.

First, FIG. 4A illustrates an analog mixing scheme. Referring to this, the user service providing system using the broadcasting network according to the present invention encodes a video signal of broadcast content to generate a video ES 41. ), An audio encoder 42 for encoding an audio signal of broadcast content and a control message modulated with an analog signal of an audible frequency boundary band together to generate an audio ES, and a video packetizer for packetizing the video ES into a video PES. (43), an audio packetizer (44) for packetizing the audio ES into an audio PES, a TS multiplexer (45) for multiplexing the audio PES and the video PES to generate a TS suitable for transmission, and the control message And an analog modulator 46 for modulating the signal into an analog signal in an audible frequency boundary band.

In the above, the analog modulator 46 may be provided in the remote control server 11 to allow the remote control server 11 to modulate the control message into an analog signal and then apply it to the broadcast server 12. If the remote control server 11 transmits a control message, it may be modulated into an analog signal and then processed.

The video / audio encoders 41 and 42, the video / audio packetizers 43 and 44, and the TS multiplexer 45 are included in the broadcast server 12 and are generally well known components.

Therefore, in the analog mixed system, the user service providing system using the broadcasting network of the present invention receives the control message configured in the remote control server 11 from the broadcasting server 12 and receives the control message through the analog modulator 46. After modulating the spread signal of the audible frequency boundary band (15-25KHz) or after the remote control server 11 modulates the control message through the analog modulator 46 into the spread signal of the audible frequency boundary band (15-25KHz). Transfer to broadcast server 12.

The broadcast server 12 then mixes the analog modulated control message with the analog audio signal and applies it to the audio encoder 42. At this time, since the frequency bands of the control message and the audio signal are different, there is no fear that the control message will affect the audio signal. Accordingly, the audio encoder 42 generates an ES by encoding the audio signal and the control message together. The ES carrying the audio signal and the control message is input to the packetizer 44 to generate a PES, and then to the TS multiplexer 45. In this case, the video signal is encoded by the video encoder 41 and generated as an ES, and then packetized into the PES by the packetizer 43 and applied to the TS multiplexer 45 as before. Therefore, in the TS multiplexer 45, the video PES and the audio and control message PES are multiplexed together and output to the TS suitable for transmission.

In the above-described analog mixed method, the control message is transmitted in the form of being inserted into the TS carrying the broadcast signal. This method can be used when a real-time broadcasting program is in progress, or when generating a PS (Program Stream) of advertising or recording content, control messages related to the content are premixed and stored in an audio signal. Valid.

Next, FIG. 4B is a block diagram illustrating a digital insertion method. Referring to this, the system of the present invention encodes an audio signal of broadcast content together to generate an audio ES. A video encoder 42 for encoding a video signal of broadcast content to generate a video ES, an audio packetizer 43 for packetizing the audio ES into an audio PES, and packetizing the video ES into a video PES. A video packetizer 44, a TS multiplexer 45 for multiplexing the audio PES and the video PES to generate a TS for broadcast signal suitable for transmission, and encoding the control message into an ES, and packetizing the ES into a PES. Then, the digital generator 47 generates a control signal TS suitable for transmission.

As described above, the video / audio encoder 41, 42, the packetizer 43, 44, and the TS multiplexer 45 are provided in the broadcast server 12, and the digital generator 47 is a broadcast server. It may be provided on the (12) side, or may be provided on the remote control server (11) side.

Therefore, according to the digital insertion scheme, the system of the present invention generates a video signal and an audio signal as a TS through the video / audio encoders 41 and 42, the packetizers 43 and 44, and the TS multiplexer 45. Separately, the digital generator 47 modulates, encodes, and packetizes a control message in binary data form to generate a TS. Therefore, the TS for broadcast signal and the TS for control message are generated separately, and they are sequentially transmitted through the broadcast system. This digital insertion method is more effective when providing information that is not related to the currently airing program or personalized service.

Regardless of which method is used, the control message is transmitted in the form of an audio signal. Therefore, the Stream_ID in the PES header of the control message will have a value of 0xC0 to 0xDF depending on the processing method.

In addition to the method described in the above example, a method of dubbing a control message to the content to be broadcast may also be used.

Either way, in the present invention, the control message arrives at the receiving side in TS format, and thus is processed in the broadcast receiving device 16 in the same way as the audio signal.

That is, the broadcast receiving device 16 receives a TS transmitted through the broadcast network 15, removes a header of the TS, collects a plurality of TS data, recovers the PES, removes the recovered PES header, and removes the ES. After reconstruction, the audio ES is decoded into an analog signal through the audio decoder and output through the speaker, and the video ES is decoded into an analog signal through the video decoder and output to the TV or display device. In this case, since the control message generated by the remote control server 11 follows the format of the audio ES, the control message is modulated into an analog signal by the audio decoder together with the audio ES and output to the speaker. Eventually, audio signals and control messages are output to the speaker at the same time.

5 is a block diagram showing a part of a configuration of a remote device 17 that receives and processes a control message output through a speaker of the broadcast receiving device 16.

Referring to FIG. 5, the remote device 17 includes a microphone 51 for receiving signals of an audible frequency and an audible frequency boundary band output from the broadcast receiving device 16, and received from the microphone 51. An extractor 52 for extracting an audible frequency boundary band signal from the signal, a demodulator 53 for demodulating the signal extracted by the extractor 52 into a control message, and an output from the demodulator 53; The execution unit 54 analyzes the control message and performs the indicated operation.

Therefore, the remote device 17 simultaneously receives the audio signal and the control message output through the speaker of the broadcast receiving device 16 through the microphone 51, and through the extractor 52 and the demodulator 53. The audio signal is removed from the received signal and only the control message is demodulated to restore the original message format as shown in FIG. Then, the remote device 17 performs a proper processing of the recovered control message according to the message format, and executes various operations such as text output, sound output, video output, and operation execution.

Accordingly, the user service providing system according to the present invention may provide various services related to content or personalized service to a user who views a broadcast through a broadcasting network. Next, the service providing process through the user service providing system according to the present invention will be described by way of example.

The services provided by the user service providing system of the present invention can be broadly classified into broadcast type services and personalized services. Here, the broadcast type service means unilaterally providing a service to an unspecified number of users, and the personalized service means providing a personalized service for each user through two-way communication with a specific user.

FIG. 6 is a flowchart illustrating a broadcast service procedure through a user service providing system according to the present invention. Referring to this, the remote control server 11 must be delivered together with content (program, advertisement, etc.) to be broadcast. Control information and commands to be performed or control information and commands to be transmitted to the user for each time point are obtained, and a control message is configured (S61).

The control message is transmitted to the remote device 17 of all users through a broadcast server 12 in a broadcast or multicasting manner (S52). In this case, it is preferable that the control message is transmitted and mixed with the audio signal of the related content and inserted into the TS by the analog mixing method described with reference to FIG. 4A. Accordingly, the control message is received with the video / audio signal to the broadcast receiving device 16 and then output through the speaker.

The remote device 17 receives the control message output from the speaker of the broadcast receiving device 16 as described above, and outputs the control information included in the control message in a specified manner or performs a command (S63 to S66). In this case, the control message of the broadcast type service may include announcement transmission, disaster broadcasting, weather and traffic information, a title or synopsis of a program currently being aired, information on characters or sports game players in the play. In the past, this information was transmitted by flowing text through a portion of the TV screen being programmed (for example, the upper part or the lower part), but in this case, it is not easy to check the past information again, and the user If the information is not desired, it may be recognized as an object covering the screen of the program being viewed. However, in the present invention, such information may be transmitted in a variety of forms, such as text, voice, video, or robot, through the remote device 17, which is independent of the broadcast receiving device 16, not the TV screen on which the program is being broadcast. It may be provided in the form of operation, etc., the desired user can check the information provided through the remote device 17 at any time.

In particular, if the remote device 17 is a robot, various operations according to the situation may be instructed through the remote control device 11. For example, when an advertisement of a specific company is on the air, the robot may perform an operation that mimics the logo of the advertising company, thereby further enhancing the advertisement effect. The robot may also output price information or discount information associated with the advertisement.

These points may provide a broadcaster with a new revenue model. In other words, instead of providing the remote device 17 to the subscriber free of charge, the IPTV broadcaster can collect a separate fee from the advertisers by using the remote device 17 as an advertisement tool. In addition, the broadcaster collects the metering fee of the living rate by sending a notice about the living rate such as gas metering or electric power metering through the remote device 17 and having the subscribers receive the metering result. You can also give them the benefit of discounting rates.

Next, the personalized service method will be described. Here, the remote control server 11, via the broadcast server 12, confirms that the subscriber subscribed to the personalized service is watching the broadcast, and configures the service specified by the identified subscriber as a control message to remote Transmit to device 17. Personalized services may include email alerts, financial alerts, music or video file downloads. In order to provide such a personalized service, it is required to interwork with the broadcast server 12 that performs the subscriber's connection status, billing, customer and terminal management.

7 is a flowchart illustrating a personalized service providing procedure through a user service providing system according to the present invention.

More specifically, referring to FIG. 7, the remote control server 11 confirms through the broadcast server 12 whether the subscriber subscribed to the personalized service is receiving the broadcast (S71).

In addition, the remote control server 11 checks whether the subscriber whose broadcast reception has been confirmed has the remote device 17 (S72). If the check resulted in having the remote device 17, the process proceeds to the next step, otherwise the service is terminated.

If the remote device 17 is held, the type of service requested by the subscriber is checked (S73). Any service can be provided as a personalized service. In the present embodiment, an e-mail alert service, a financial alert service, a free text service, and a music content service will be described as an example.

If the checked service is an email alert service, the remote control server 11 checks the mail server 13 to see if there is a new email to be received by the subscriber (S74). The control message informing that the e-mail has arrived is transmitted to the remote device 17 (S75). The remote device 17 receiving the control message and confirming the contents outputs a content indicating that a new email has arrived or performs a specified operation (for example, outputting a designated ringtone) (S76).

If the checked service is a financial alert service, the remote control server 11 checks the financial server 14 of the subscriber's financial processing (eg, deposit and withdrawal inquiry) (S77). Then, the checked contents are transmitted to the remote device 17 in a control message (S78). Receiving this, the remote device 17 outputs the transmitted financial processing fact so that the subscriber can know (S79).

When the checked service is a text service, the remote control server 11 checks whether there is a text that arrives at the subscriber through a message server (not shown) of the mobile phone possessed by the subscriber (S80), and if there is a text that arrives, The control message is transmitted to the remote device 17 (S81). The remote device 17 outputs the text on the received control message so that the user can check it (S82). The text service may be provided free of charge if the text service is provided only on the Internet network without using the PCS network. In addition, if reverse signal transmission is possible between the remote device 17 and the broadcast reception device 16, not only text reception but also text transmission is possible. However, the remote device 17 should have a dial or voice recognition function such as a mobile phone.

Finally, if the checked service is a music content service, while the subscriber is watching the broadcast, the remote control device 17 checks the music content to be transmitted to the subscriber (S83) and remotely checks the checked music content. It transmits to the device 17 (S84). The remote device 17 stores the received music content in the designated memory so that the subscriber can use the stored music later (S85). In the above description, the music content to be serviced may be designated by the service provider, but it is preferable to allow the subscriber to set the genre according to the music or taste desired by the subscriber in advance.

In addition, based on the subscriber's basic personal information, a service such as singing a birthday song on the subscriber's birthday is possible. After the viewing of the broadcast is finished, the remote device 17 may perform an independent action such as displaying the received information or demonstrating a music file.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those skilled in the art.

The user service providing system using the broadcasting network according to the present invention is implemented simply and inexpensively without changing the broadcasting system, and can provide various user services other than the broadcasting service to the user who receives the broadcasting through the broadcasting network. By providing information or services related to programs and advertisements that are broadcast, broadcasts and effects can be further enhanced.

In addition, the present invention provides a service through a remote device that is implemented separately from the broadcast receiving device, so that the user can be provided with a higher quality service without disturbing the viewing of the broadcast as before.

In addition, since the present invention can use various types of remote devices to provide a service, it is possible to provide a new profit model to a broadcaster while broadening user selection.

1 is a block diagram showing the overall configuration of a user service providing system using a broadcasting network of the present invention.

2 is a graph illustrating a communication method between a broadcast receiving device and a remote device in a user service providing system using a broadcasting network of the present invention.

3 is a diagram illustrating a format of a control message in a user service providing system using a broadcasting network of the present invention.

FIG. 4 is a block diagram illustrating a method and configuration of transmitting a control message together with a broadcast signal in a user service providing system using a broadcast network of the present invention.

5 is a block diagram showing the configuration of a remote device in a user service providing system using a broadcasting network of the present invention.

6 is a flowchart illustrating a user service providing method using a broadcasting network according to an embodiment of the present invention.

7 is a flowchart illustrating a user service providing method using a broadcasting network according to another embodiment of the present invention.

Claims (25)

A remote control server constituting a control message by acquiring a command for controlling the operation of a remote device and information related to broadcast content or requested by the user to a user who uses a broadcast service; A broadcast server for transmitting a control message configured at the remote control server together with broadcast content through a broadcast network; A broadcast receiving device which receives the broadcast content and the control message, reproduces the broadcast content so that a user can view it, and transmits the control message to a remote device; And A remote device that receives the control message from the broadcast receiving device and outputs the information included in the control message in a specified form or performs the control command, And the broadcast receiving device and the remote device transmit and receive the control message in an audible frequency boundary band. delete The method of claim 1, wherein the control message is System for providing a user service using a broadcast network, characterized in that transmitted as a signal of the same type as the audio signal of the broadcast content. 4. The remote control server of claim 3, wherein the remote control server And a digital generator for encoding the control message into an elementary stream (ES), packetizing the ES into a packetized ES (PES), and then generating a transport stream (TS) suitable for transmission. User service provision system. The method of claim 3, wherein the broadcast server A digital generator for encoding the control message into an ES, packetizing the ES into a PES, and generating a control signal TS suitable for transmission; An audio encoder for generating an audio ES by encoding the audio signal of the broadcast content together; A video encoder for generating a video ES by encoding a video signal of broadcast content; An audio packetizer for packetizing the audio ES into an audio PES; A video packetizer for packetizing the video ES into a video PES; And And a TS multiplexer for multiplexing the audio PES and the video PES to generate a TS for a broadcast signal suitable for transmission. The method of claim 3, wherein the broadcast server An audio encoder for generating an audio elementary stream (ES) by encoding a control message modulated into an analog signal of an audible frequency boundary band and an audio signal of broadcast content together; A video encoder for generating a video ES by encoding a video signal of broadcast content; An audio packetizer for packetizing the audio ES into an audio packetized ES; A video packetizer for packetizing the video ES into a video PES; And And a TS multiplexer for multiplexing the audio PES and the video PES to generate a transport stream (TS) suitable for transmission. The method of claim 6, wherein the broadcast server And an analog modulator for modulating the control message into an analog signal of an audible frequency boundary band. The method of claim 6, wherein the remote control server And an analog modulator for modulating the control message into an analog signal of an audible frequency boundary band and outputting the analog message to the broadcast server. The apparatus of claim 3, wherein the broadcast receiving device is And receiving the control message and the audio signal of the broadcast content together, demodulating the signal into an analog signal and outputting the same through a speaker. 10. The device of claim 9, wherein the remote device is A microphone which receives an audio frequency signal and an audio frequency boundary band signal output from the broadcast reception device; An extraction unit for extracting a signal of an audible frequency boundary band from the signal received by the microphone; A demodulator for demodulating a signal of an audible frequency boundary band extracted by the extractor into a control message; And an execution unit for analyzing the control message output from the demodulator, outputting information included in the control message, or executing an instructed control command. The device of claim 10, wherein the remote device is User service providing system using a broadcasting network, characterized in that any one of a mobile phone, PC (Personal Computer), robot, toy, remote control, and home appliances. The method of claim 1, wherein the control message is Includes a preamble, a destination device identifier (DD_ID), a destination device identifier (SD_ID), a source device identifier (SD_ID), a message type (Msg_Type), data (Data), and a cyclic redundancy code (CRC). A user service providing system using a broadcasting network. The method of claim 12, wherein the message type, Code values defining the format of the control message; A length value specifying a length of the data; And And an extended display value indicating whether the content of the data is connected with the content of the message. A remote device of a user service providing system using a broadcasting network that provides a user service by controlling a remote device provided on a user side separately from a broadcast receiving device through a broadcasting network, A microphone which receives an audio frequency signal and an audio frequency boundary band signal output from the broadcast reception device; An extraction unit for extracting a signal of an audible frequency boundary band from the signal received by the microphone; A demodulator for demodulating a signal of an audible frequency boundary band extracted by the extractor into a control message; And an execution unit for analyzing the control message output from the demodulation unit, outputting information included in the control message, or performing an instructed control command. Constructing a control message by collecting information related to broadcast content to a user who uses a broadcast service or information to be delivered to the user, information requested by the user, and commands to control the operation of a remote device; Converting the control message into an audio signal format of broadcast content and transmitting the same through a broadcast system; And The remote device receives the control message output through the speaker of the broadcast reception device, and outputs the information contained in the control message in a specified form, or performing a command contained in the control message. Way. The method of claim 15, wherein the control message is Method of providing a user service using a broadcasting network, characterized in that any one of the announcement, disaster broadcasting, weather information, traffic information, information of the currently broadcasted content, additional information related to the currently aired advertisement. The method of claim 15, Confirming whether a user is receiving a broadcast signal before constructing the control message; And Checking whether the subscriber identified as receiving the broadcast signal has a remote device capable of receiving a control message, and if the remote device is provided, executing the step of constructing the control message; User service providing method using a broadcasting network, characterized in that. 18. The method of claim 17, wherein the control message is The user service providing method using a broadcasting network, characterized in that it comprises any one of the newly received email information to the user, financial notification information to be delivered to the user, music or video files. 19. The method of claim 18, wherein constructing the control message comprises: A user service providing method using a broadcasting network, wherein the email information or financial notification information is collected in association with an email server or a financial server. The method of claim 15, wherein converting the control message into an audio signal format of broadcast content and transmitting the same through a broadcast system comprises: Modulating the control message into an analog signal in an audible frequency boundary band; Mixing the control message modulated with the analog signal with an audio signal of broadcast content and encoding the same into an audio elementary stream (ES); Packetizing the audio ES into an audio PES; And combining the audio PES and the video PES of the broadcast content to form a transport stream (TS) suitable for transmission. The method of claim 15, wherein converting the control message into an audio signal format of broadcast content and transmitting the same through a broadcast system comprises: And encoding the control message into an ES of an audio format, packetizing the control message into a PES, and generating a TS for a control signal using the PES and transmitting the control signal to a broadcasting network. The method of claim 15, wherein the control message, Includes a preamble, a destination device identifier (DD_ID), a destination device identifier (SD_ID), a source device identifier (SD_ID), a message type (Msg_Type), data (Data), and a cyclic redundancy code (CRC). A user service providing method using a broadcasting network characterized in that. The method of claim 22, wherein the message type, Code values defining the format of the control message; A length value specifying a length of the data; And And an extended display value indicating whether the content of the data is connected to the content of the message. 16. The device of claim 15, wherein the remote device is A user service providing method using a broadcasting network, characterized in that any one of a mobile phone, a personal computer (PC), a robot, a toy, a remote control, and a home appliance. The method of claim 24, wherein outputting the information included in the control message in a specified form or performing a command included in the control message comprises: And outputting the information included in the control message in the form of an image, a video, or an audio, or controlling the operation of the robot according to a command indicated in the control message.

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