TW201125366A - Apparatus and method for transmitting/receiving transport stream in a digital broadcasting system - Google Patents

Abstract

Disclosed is an apparatus and a method of transport stream transmission/reception for transmitting/receiving push data through a transport stream in a broadcast system. To this end, a transmission apparatus encodes push data by using an error correction scheme, interleaves the encoded push data according to an interleaving pattern, multiplexes the data in a TS generated for each of multiple contents, and then transmits the multiplexed data, and a reception apparatus extracts push data from a received TS, de-interleaves the extracted push data, and acquires desired push data through forward error correction.

Description

201125366 VI. Description of the Invention: [Technical Field] The present invention relates to an apparatus and method for transmitting/receiving a transport stream in a broadcast system, and more particularly to transmitting/receiving push data via a transport stream ( Push data) device and method. [Prior Art] Today, digital broadcasting has become a new and successful example in the era of broadcast-communication convergence. The digital broadcasting service is a service that can provide various additional services while providing digital audio/video services through cables, satellites, and groundwaves. Unlike existing broadcast services that only allow users to receive and view images transmitted via a transom via a service, digital broadcast services allow the use of two-way communication, such as financial services, Internet search, movie, electronic transaction, high quality television, uitra high speed Internet, internetphone, videophone and many more. However, due to the normal bandwidth problem, digital broadcast systems are not able to provide Video 〇n Demand (VoD) services or Near Video on Demand (NVoD) services. In order to solve the above problem, by using a relatively low bandwidth, the user terminal configured with the storage medium stores various materials for the VoD service or the NVoD service in advance (including the video / 4 201125366 JJJlfl without limitation of time). Audio data). Then, the party uses, _ _ _ service = 〇 D borrow: _ _ _ & time ^ so that the gambler receives, stores and views the information corresponding to the E 〇 D service or NV 〇 D service is called As a push service.

In order to use the above-mentioned push service, most of the user terminals are equipped with a tuner (e), which is equipped with a specific device for the push service. 'Sufficient time to use, receive_data should be reliable. In particular, in order to perform digital video recording (Digital Vide〇Rec〇rding, DVR) services for recording television (Tdevisi〇n, TV) content To perform the push service together, it is necessary to increase the number of tuners. Therefore, it can be said that the digital broadcasting system urgently needs to arrange a scheme for satisfying the various service needs of the observer without adding hardware. It is a matter of course that the service provided according to the needs of the observer should be stably provided. [SUMMARY OF THE INVENTION] The present invention has been proposed to solve the above problems in the prior art and to improve in a digital broadcasting system. Transmission possibility of push data] The present invention provides a device for transmitting stream transmission/reception and method 0. Further, the present invention also provides An apparatus and method for transmitting the push broadcast 5 201125366 by using a forward error correction technology and an interleaving technology in a digital broadcast system. Further, the present invention provides a Digital broadcasting uses the forward error correction technique and the interleaving technique to connect the _ push === setting and the method. The pre-existing view of the pre-existing, and the method of transmitting the V transmission 4 in the digital broadcasting system, the method includes : by coffee = technology · 'from k push broadcast # material package output _ has been programmed, the package, according to the predetermined staggered pattern, staggered has been edited # == according to: each of the generated content -= Transfer ί.'s push #料包' and transfer the multiplexed system: ίίϊ: Another point of view' provides a means of transmitting j& in the digital broadcasting system, the device includes: encoding For outputting η 曰 , , 从 从 从 从 ; ; 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 采用 向前 向前 藉 向前 向前 向前 向前 向前 向前 向前 向前 向前data a packet; and a multiplexer for multiplexing the data packet of the parental error in each of the transport streams generated in each of the root and the contents of the evening, and transmitting the transport stream that has been multi-served According to another aspect of the present invention, there is provided a method of receiving a transport stream in a digital broadcast system, the method comprising: receiving a tuned transport stream from a transport stream generated according to each of a plurality of contents; Extracting the data packet of the parent error that has been multiplexed in the received transport stream by the received transport stream; de-imerleave the captured data according to the predetermined interlaced pattern The data packet is pushed to obtain the encoded 201125366 push data packet, and the ^k push data packet is executed by using the previously obtained encoded push data cloning technique. According to another aspect of the present invention, a device for receiving a transport stream in the system, including a cle-multiplexer, is used for · Multi-signal f's transport stream receives the modulated stream, so that = 2 and extracts the interleaved push data packet to receive the packet to obtain the encoded push data packet. The shell seal is performed by using the forward error correction technique to perform the error correction for the borrowed data packet, and the edited push of the # servant is to make the second invention: push the data packet as follows. For example, in conjunction with the closed type, the details are given. [Embodiment] ===== Various features in the description In the following description of the present invention, the following solution, any of the meanings, is a helper The definition of the rationale of the invention ==:; those who have the usual knowledge know that there is no: case, the following description of the example will discuss such a party and the transmission-type information to be based on each piece of content data 7 201125366 The generated transport stream (Transport Stream, TS), and the data on the board have been multiplexed The push data is retrieved from the TS. The following description of the exemplary embodiment of the present invention will be described in detail in order to increase the number of times to be multiplexed in the TS. Processing and transmitting/receiving the push material. In other words, the following description of an exemplary embodiment of the present invention discusses the operation of the transmitter by employing a forward error _, , , ( F〇rward Error Correction, FEC) coding technique of performance = the push data, and the transmitter interleaving the encoded push data, the flat code. Further, the following description of an exemplary embodiment of the present invention will detail the receiver Operation, this de-interlacing is performed by the Wei, the (4) push = by using the FEC technique, the expected push data is restored via the error correction of the deinterlaced push data. At the same time 'in the example embodiment of the present invention In the following description, s^ is generated as a compression and push data for compressing and compressing the content of the content and the push data: ts: expectation: there is a form of MPEG2TS. However, it is not said that this The example is only used for a digital broadcasting system by using a binary source. That is, the exemplary compression technique of the present invention is applicable to Η.264 and can be used in each of digital broadcasting systems. An example of the present invention will be described hereinafter with reference to the accompanying drawings. Α·Broadcasting System 201125366n FIG. 1 is a schematic diagram showing the structure of a broadcasting system according to an exemplary embodiment of the present invention. Referring to FIG. 1 'Content providing server 110 receives And managing audio/video and various materials corresponding to various content provided by the content provider. The content providing server 110 also manages additional information about the content, including metadata. In addition, the content providing server 110 stores and manages the push material for the push service. The content providing server 11 encrypts the content material to be transmitted by using the encryption key provided by the secure server 12A. This prevents the corresponding content service from being provided to unauthorized viewers. The inner valley providing server 110 generates a TS by applying a predetermined compression technique to the data of each of the plurality of contents. A representative compression technique used by the content providing server 110 includes the H264 media format, which is a standard promoted by ISO and the ITU. Further, the TS compressed via H.264 is called MPEG2 TS.

In order to generate a TS based on each content, the content providing server 110 and the push information compressed via a predetermined compression technique are transmitted. At this time, by using the FEC technique and the interleaving technique, the content providing server generates a push data packet to be multiplexed with each TS. That is to say, the content providing server 110 generates the final push data packet by using the FEC technique to encode the push data packet to be transmitted and the predetermined size packet to interleave the encoded push data packet. The FEC 201125366 technology uses a predetermined interleaving pattern using a predetermined coding rate and interleaving technique. Here, the FEC technique refers to a scheme of adding additional information (redundancy) to a transmitter or a frame transmitter to be transmitted, thereby allowing the receiver to detect and correct errors by using additional information. FEC technology allows the receiver to self-correct errors. Therefore, the FEC technology is mainly used in a bad channel environment or in situations where high reliability is required. Even in the case of errors, FEC technology allows for error correction without retransmission, so that it can be processed instantly and with high throughput. However, burst errors are prone to occur when data is transmitted only in accordance with FEC techniques. Therefore, the content providing server 11A also uses an interleaving technique. In the interleaving technique, the data to be transmitted is interleaved as it is transmitted, so that even if burst errors occur during transmission, it is possible to improve the performance of data restoration. The secure server 120 supports a security solution in a broadcast system. That is, the secure server 120 generates an encryption key required to decode the content and only provides the generated encryption key to the terminal of the user who is allowed to view the corresponding content. In addition, the secure server 12 transmits the generated encryption key to the content providing server 110 so that the content providing server can encrypt and transmit the corresponding content material. At the same time, according to the support security solution, the secure server 120 can be divided into a CAS server and a DRM server. The cas feeding service according to the support security solution 201125366 j.1 and the DRM server have different application embodiments due to their respective characteristics. For example, the CAS scheme is used for DTH, electrical environment, [p τν, etc., and the DRM scheme is used for V〇IP services. More specifically, the drm scheme is a scheme for 'reproduction of stored audio/video data 戍 other materials' or to prevent users during setting of use restrictions or after transmission to a receiver. The broadcast network 130 is a common name for transmitting a communication medium from the content providing word processor HQ to the user terminal. 1% of the broadcast network can include the Internet, cable networks, satellites, terrestrial waves, and so on. A Set Top Box (STB) 140 belonging to the user terminal receives the packetized TS transmitted via the broadcast network 130. The STB 140 retrieves the TS corresponding to the content desired by the viewer from the separated TS. At this time, the TS has been retrieved in the form of a media format compressed according to a predetermined compression technique. For example, the TS that has been retrieved may be MPEG2 TS compressed by H.264. The STB 140 restores the captured TS to become content material. In addition, the O STB 140 provides recovered information to a display device such as a television (TV). Normally, the STB 140 decrypts the encryption of the TS that has been retrieved in order to recover the content material since the TS has been encrypted. Therefore, the STB 140 retrieves the push data packet that has been multiplexed in the decrypted TS. At this time, the push data packet that has been captured by the technology such as H.264 has been compressed. Since the pushed push data packet has been obtained according to the example of the present invention 11 201125366

The decoded content material is applied to the package, and the STB 140 extracts the push data packet for the content data. Next, go to the display device. As an example of the display device, the (Teievi_TV) 150 outputs audio and video signals for listening to the content material provided by the STB14. In addition, by the observer's desire, the TV 150 receives audio and video signals corresponding to the push material stored in the recording medicle. ^ B. Content Providing Server Fig. 2 is a diagram showing the structure of a server in accordance with an exemplary embodiment of the present invention. In the structure of the content providing server, the components depicted in FIG. 2 include only some TSs for inserting the push data into the TS generated according to each content and outputting the TS to which the push data has been inserted. element. For ease of description of the present invention, other components of the content providing server are omitted. Referring to Fig. 2, a packetizer 210 receives a file-type push data and a packetize file type push data to generate a push data packet. The 12 201125366 FEC encoder 220 encodes the push data packet according to a predetermined coding rate by an FEC capable coding scheme. The push data packet has a media format (e.g., MPEG2 TS) compressed by a predetermined compression technique such as H.264.

A representative coding scheme with FEC capabilities includes a block (bl〇ck) coding scheme and a non-block coding scheme. The block coding scheme includes a linear coding scheme (such as a Hamming code scheme, a Hadamard code scheme, and a Golay scheme) and a cyclic coding scheme (such as , bch code scheme and Rs code scheme). In addition, the non-block coding scheme includes a turbo coding scheme and a convolutional coding scheme. The FEC-capable coding scheme has the characteristic that it not only outputs the original data but also the parity data (parky _) generated from the original data f f from the original. The parity of the output is determined by the coding rate of (4). If the coding rate () 疋k/η ' indicates that the data of size k is input and the encoded data of the large n is output. Here, the encoded material of size n includes k information bits and (n_k) co-located bits. If Belle has a coding rate of (8)* 1/3, it responds to - one input bit, one information bit, and two parity bits. Although the above example is based on bit-by-bit (the encoding can not be coded using block coding, but also by b) execution two: in J-block coding, block by block (b1〇Ck code, also That is, packet-by-packet ((10) heart 13 201125366 jpill interleaver 230 interleaves the push data packets that have been encoded by the FEC encoder 22〇. Interleaving is performed according to a predetermined interlace pattern, which is preset in the transmitter The transmitter and the receiver are provided to the receiver as control information or as needed. Meanwhile, the parent error generator 230 divides the encoded push data into a plurality of blocks 'each block has a predetermined size' And interleaving the partitioned blocks block by block. Here, it is preferred to perform a type of depth interleaving so that the encoded push data packets can be transmitted over a long time interval. In general, deep interleaving during data communication is required. The amount of data towels required for recovery is large (four), which makes the mining error not okay. However, the push data package does not require real-time data recovery and allows the same (4) In the present embodiment, the depth interleaving can be used, which can improve the reliability of the data segment during the tuning. The interleaved push data packet is rounded into the multiplexer 25〇. Since the multiplexer 250 should be used for each content, the interleaved push data packets are respectively input to all the multi-guards corresponding to the content. Meanwhile, the content data provided by the 'mother-content is input. To the encoder 240. The encoder 240 is different from the FEC editor 220. The 'code compresses the content material in the type of H.264 and outputs the compressed material as MPEG2 TS. Here, according to various contents The number configures the number of codes 。 24〇. Although the following description only discusses one encoder', it goes without saying that other encoders can operate in the same way. 14 201125366n Corresponds to coding The MpEG2Ts of the content material outputted by the device 240 is input to the multiplexer 250. The sub-multiplexer 250 multiplexes and outputs the MPEG2 Ts corresponding to the content material and the MPEG2 TS corresponding to the push data packet. The multiplexer 250 inserts the MPEG2 TS that should be used to push the data packet in the MPEG2 TS corresponding to the content material. Obviously, by making the MPEG2 TS for the content of the deer and the 0 ΜΡΕ〇 corresponding to the push data. 2 The output data obtained by TS multiplexing is also in the form of mj>eg2 TS. The MPeG2 TS that is multiplexed by the multiplexer 250 is applied to the scrambler 260. The scrambler 260 is used by using the scrambling code. The multiplexed MPEG2 TS is encrypted, and the encrypted MPEG2 TS is encapsulated and rounded by IP_. The ···packed TS output from the scrambler 260 is input to the network switch 270 and then finally output to the broadcast network. At the same time, the multiplexed MPEG2 TS can include multiple channels or time multiple time slots. In this case, multiple channels or multiple time slots of the multiplexed MPEG2 TS can be scrambled by employing different scrambling codes' scramblers 260, respectively. 3 is a control flow diagram of transmitting push material in a digital broadcast system in accordance with an exemplary embodiment of the present invention. Referring to FIG. 3', in step 310, the content providing server encapsulates the archived push data and then outputs the split boot data. In step 312, the content providing server executes the FEc of the push data packet, and from 15 201125366, generates the pushed push data, pushes the data packet, and the I-T is encoded and generates each TS-step. In 316, 'the secret data is used to weiwei the (10) push data packet, so that each TS broadcast data packet is inserted into each content-generated content and then MPEG2 N f In 318, the content providing server generates the final MPEG2 TS towel into the heart, and the (4) packet is inserted into the body of 320: The finally generated tearing brain is scrambled in the step 曰 scrambling code, and then transmitted in step 322. C. User Terminal Figure 4 is a diagram showing the structure of the user terminal in the touch (4) system of the complement (10) according to the present invention. Referring to Figure 4, the tuner 41 is tuned to the channel that the user has requested to view and the broadcast signal (i.e., MPEG2 TS packet) received via the broadcast network only fetches data corresponding to the channel being modulated. The Base Band Chip receives the MPEG2TS type of content material retrieved by the tuner 41. In addition, the baseband chip converts the MPEG2 TS type content data into a Serial Digital Interface (SDI) signal, outputs the converted sm signal, and the mpeg2 TS type inserted into the MPEG2 TS type content material. Push data packet. The SDI signal includes a 4-channel digital audio signal and a composite digital composite image as a digital signal standard with a transmission rate of 270 Mbps. 16 201125366 The soil band day slice includes a descrambler (de_scrambier) Co and a multiplexer 430. The descrambler 42 解 descrambles the MPEG2 TS type content material output from the tuner 41 by using a predetermined scrambling code. The descrambled MPEG2 type of content material is input to the multiplexer 43.

At the same time, the mpeg2ts type of the inner body material that is rotated by the tuner 41 is included? (4) Road or multiple phase slots. In this case, the scrambler 420 can descramble the plurality of channels or time slots of the MPEG2 TS type of content by using different scrambling codes, respectively. The multiplexer 430 separates the content material and the plurality of push data packets from the descrambled MpEG2Ts^| type. That is, the 5 brothers' multiplexer 43 撷 extracts a plurality of push data W from the descrambled mpeg data, and Qian Minghe pushes the Beibei packet. In addition, the multiplexer 430 mentions that the MPEG2TS type of push data has been de-interleaved for the outgoing MPEG2TS type, and the de-interlaced n-order or the pre-interlace_interleaved pattern to the parental error MPEG2TS type push-cast packet. In addition, the pushed data packet that has been decoded is ❹ FEC decoded n. 9 = EC Decryption 450 decodes the deinterleaved push data packet 'via ^, so that the decoding by the FEC codec is as primitive as possible to push the data packet. The original data can be restored if at least k bit operations i can be normally received from n bits generated via =. In addition to the actual, spear, and k bits, 10 to 20% of the 17 201125366 ^UXll bits are received, and the original data can be completely restored. The push data packet obtained by the decoding of the FEC decoder 450 is applied to a de-packetizer 460. The de-splitting device 460 decomes the decoded push data packet and outputs the file type of the push data. The file type push data packet output from the depacketizer 460 is stored in the § recorded media (storage unit) 470. At the request of the observer, the push data packet stored in the recording medium can be reproduced at any time. Here, the push data recorded in the recording medium is transferred to the DRm module 48G' where the encryption of the push data is released (i.e., 'decrypted) and the decrypted data is finally output. At the same time, the content material separated by the multiplexer 430 and the last pushed data outputted from the DRM module 480 are decompressed by the deinterleaver 44 so that they are output as SDI type content material. Figure 5 is a control flow diagram for receiving push material in a digital broadcast system, in accordance with an exemplary embodiment of the present invention. Referring to FIG. 5', in step 51, the user terminal performs a spectrum adjustment operation for acquiring content data corresponding to the channel requested by the user from the broadcast signal received via the broadcast network. Accordingly, the user terminal descrambled in step 512 has retrieved the MPEG2 TS type (4) material data' and in step 514 retrieves a plurality of push data packets from the frequency MPEG2 TS type content material. The content material that has been captured by the push content data packet is converted into the SDI type of push data by the solution. ... 18 201125366 . Further, in step 518, the user terminal deinterleaves the content data packets of the TS type that have been taken based on the predetermined interlace pattern or the interlace pattern received from the transmitter. At the same time, in step 518, error correction is performed on the deinterleaved push data packet via the ship decoding 'user terminal. Then, in step 520, the user terminal decompresses the push data packet restored by decoding and enables The push type of the slot type is rotated. In addition, in step 522, according to the needs of the user, the user terminal stores the file type of the push data in the recording medium for later viewing. According to the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Accordingly, the operation and structure of the method and apparatus of the above-described exemplary embodiments in accordance with the above-described exemplary embodiments of the present invention can be carried out only by having a one-way provider capable of transmitting various types of multi-media ground-wave services. The above has been disclosed in the preferred embodiment, and the present invention is not limited to the invention, and the person who is in the poor can make some changes without departing from the spirit of the invention. The change and retouching, therefore, the applicants in the 2nd quarter of the application for the definition of patents. For example, for convenience of explanation, the present invention; +, __ y Z is used as a push material. However, push the data to implement = various types of files. Also 铖θ % Modern A/V file says that Hall G2TS, AVI file 19 201125366 厶1 jpil i type, etc. usually correspond to inserting A/V and data into a stream or file. System format or standard. Here, the MpEG2 TS is used as a streaming multiplex scheme at the transmission time, and can be stored for use as an archive to be used in place of the AVI archive. Therefore, the push material used in the exemplary embodiment of the present invention has nothing to do with the type of the file' and in order to apply multiplexing in IP packets or similar packets and MPEG2 TS, in the above-described exemplary embodiment of the present invention The sub-sealing of the push data was carried out. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic diagram showing the configuration of a broadcasting system according to an exemplary embodiment of the present invention. 2 is a diagram of the structure of a content providing server in accordance with an exemplary embodiment of the present invention. 3 is a control flow diagram for transmitting push data in digital according to an exemplary embodiment of the present invention. Fig. 4 is a diagram showing the structure of a user terminal in a digital broadcasting system according to an exemplary embodiment of the present invention. Figure 5 is a control flow diagram of receiving push material in a digital broadcast system in accordance with an exemplary embodiment of the present invention. [Main component symbol description] U〇: Content providing server: Security server 130: Broadcast network 14: Video box (Set Top Box, STB) 20 201125366 150 : Television (Television, TV) 210: Separator 220: FEC encoder 230: interleaver 240. Encoding 250: multiplexer 260: scrambler 270: network switch ^ 310: packetized push data 312: packetized FEC 314: interleaved 316: insert push in each TS Broadcast data 318: Generate final MPEG2 TS 320: Scrambling 322: Transmit 410: Tuner 420: Descrambler 430: Multiplexer 440: Deinterleaver 450: FEC Decoder 460: Deblocker 470 : Recording Media (Storage Unit 480: DRM Module 490: Decoder 21 201125366 jj^uynl 510: Tuning

512: Des scrambled MPEG2 TS 514: Extracting data from MPEG2 TS 516: Deinterleaving 518: FEC decoding 520: Deblocking 522: Storing decoded push data

twenty two

Claims (1)

VII. 1 Applying for a patent Fan Gu····················································································· In the data packet, the predetermined interlaced pattern, interlaced with the programmed information of the compiled mother, ====: generated each, the passing flow. Broadcasting the Becco packet, and transmitting the multi-portion ο 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The media format, .'', the transport port, l, and the push data are compressed. 3. The method of transmitting a transport stream in a digital broadcast system as described in claim 2 or 2, the method further comprising scrambling each of the transport streams, wherein the scrambling code has been increased The interleaved said push data packet is industrialized. 4. The method of transmitting a transport stream in a digital broadcast system as described in claim 1, wherein each of the multiplexed transport streams comprises a plurality of channels or a plurality of time slots, respectively Different scrambling codes are used to scramble the plurality of channels or the plurality of time slots. 5. A device for transmitting a transport stream in a digital broadcast system. The device comprises: 23 201125366 *. A spoonful of stalks is outputted from a packet of broadcast data. a pre-error correction technique, from the interleaver 1 to the push data packet according to the packet; and the read® case 'interleaving the encoded multiplexer for multiplexing in the multi-transport stream Each of the already multiplexed transport streams generated. Deriving the broadcast of the bedding package, and transmitting the device as claimed in the patent application, in accordance with the patent application, in the digital broadcasting system, the input into the encoding currency Ht.264 defines the media format, To compression. And 4, the transport stream and the push data are set by the digital broadcast system according to the fifth or sixth item of the medium transmission range, and the setter further includes a scrambler for each of the scrambling=transport stream, wherein The push data packet of the parent error has been multiplexed by the scrambling code. A device for transmitting a transport stream in a digital broadcast system as described in claim 7 of the invention, wherein each of the transport streams that have been multiplexed includes a plurality of channels or a plurality of time slots, respectively Using a different scrambling code 'to cause the scrambler to scramble the plurality of channels or the plurality of time slots 0. A method of receiving a transport stream in a digital broadcast system, the method comprising: The tuned transport stream is received in the transport stream generated by each of the contents; 24 201125366 ^pnl = (4) The interleaved push data packet that has been received by the scalar revenue strip has been received. According to the predetermined staggered pattern, the transfusion muscles are obtained by dissolving the sisters, the pushes, and the buckets to obtain the encoded heartbeat data seals: Description:: False hunting is performed by using the forward error correction technique to push the data. The error of the packet is corrected, and the package has been obtained from the second. So take out k push data seals 10. The method for receiving a transport stream according to claim 9 of the patent application, wherein the towel # is defined by the + ^ _ 〒 Τ Τ Η 264 264 264 264 264 264 264 264 264 264 264 264 264 264 264 264 264 264 264 264 264 264 264 264 The package has been compressed. The method of receiving a transport stream in the digital broadcasting system as described in the ninth or first aspect of the patent application, the method further includes performing the wrong push After the data packet is broadcast, the transport stream that has been received is descrambled by a predetermined scrambling code. 12. The method of receiving a transport stream in a digital broadcast system as described in claim 5, wherein each of the received transport streams comprises a plurality of channels or a plurality of time slots, respectively, by using different The scrambling code to descramble the plurality of channels or the plurality of time slots. 13. An apparatus for receiving a transport stream in a digital broadcast system, the apparatus comprising: a multiplexer for receiving a tuned transport stream from a transport stream generated from each of the plurality of content and Demultiplexing the transport stream that has been received, thereby extracting the interleaved push data packet; 25 201125366 Deinterleaver 'for the interleaved _ data packet according to a predetermined interlace pattern _ to obtain the edited The data packet; and the push-pull k-decode β' is used to correct the error correction of the encoded push data packet obtained by using the forward error correction technique, and push the data packet. The apparatus for receiving a transport stream in a digital broadcast system according to claim 13, wherein the media format is defined by H.264, the transport stream is compressed, and the extracted Interleaved push packets. 15. The apparatus for receiving a transport stream in a digital broadcast system as described in claim 13 or 14, wherein the apparatus further comprises a descrambler for extracting the interleaved push data packet before The transport stream that has been received is descrambled by a predetermined scrambling code. 16. The apparatus for receiving a transport stream in a digital broadcast system according to claim 11, wherein each of the transport streams that have been received includes a plurality of channels or a plurality of time slots' by using different The scrambler 'de-scrambles the descrambler for the plurality of channels or the plurality of time slots. 26