KR101799863B1 - Signal processing apparatus and method thereof - Google Patents

Abstract

Embodiments of the present invention divide a data stream generated during transcoding into a plurality of files such as MPEG-4 or the like, generate a list file containing information related to the plurality of divided files, And a signal processing apparatus and method in which a plurality of divided files are transmitted to a specific terminal connected to an arbitrary communication. To this end, a signal processing method according to the present invention includes: encoding a received data stream; Setting a partitioning period based on network state information of a terminal connected to communication and buffer state information of the terminal transmitted from the terminal; Dividing the encoded data stream into a plurality of files based on the set division period, and generating a list file including information related to the plurality of files to be divided; And transmitting the generated list file and the plurality of divided files to the terminal.

Description

[0001] SIGNAL PROCESSING APPARATUS AND METHOD THEREOF [0002]

Embodiments of the present invention relate to a signal processing apparatus and a method thereof.

2. Description of the Related Art Generally, a signal processing apparatus is a device that performs predetermined signal processing on various input data.

An object of the present invention is to divide a data stream generated during transcoding into a plurality of files such as MPEG-4 or the like, generate a list file containing information related to the plurality of divided files, And transmitting the divided list file and the plurality of divided files to a specific terminal connected arbitrarily, and a method thereof.

According to an aspect of the present invention, there is provided a signal processing method including: encoding a received data stream; Setting a partitioning period based on network state information of a terminal connected to communication and buffer state information of the terminal transmitted from the terminal; Dividing the encoded data stream into a plurality of files based on the set division period, and generating a list file including information related to the plurality of files to be divided; And transmitting the generated list file and the plurality of divided files to the terminal.

As an example related to the present invention, the received data stream may include a video stream and / or an audio signal that are processed live, or may include a data stream that transcodes one already generated file.

In one embodiment of the present invention, when the playback time of the buffered content according to the buffer status of the terminal is greater than the sum of the delay time corresponding to the previous partition period and the network status, Setting a value obtained by adding a predetermined value to the dividing period to a new dividing period; Setting a value obtained by subtracting the predetermined value from the previous division period to a new division period when the playback time of the buffered content is less than a sum of the previous division period and the delay time according to the network state; And maintaining the previous partitioning period when the playback time of the buffered content is equal to the sum of the delay time according to the previous partitioning period and the network state.

As an example related to the present invention, the list file may include a plurality of file names, order information of the plurality of files, position information where the plurality of files are stored, a tag indicating the end of the list file, And may include one or more of the per-party period information.

According to another aspect of the present invention, there is provided a method of transmitting an information signal, the method comprising: receiving an information transmission request signal transmitted from the terminal; And transmitting the plurality of files and the updated list file, which are additionally generated in response to the information transmission request signal, to the terminal.

According to an aspect of the present invention, there is provided a signal processing apparatus including: an encoding unit encoding a received data stream; A controller for dividing the encoded data stream into a plurality of files based on a set division period and generating a list file including information related to the plurality of files to be divided; And a communication unit for transmitting the generated list file and the plurality of divided files to the terminal connected to communication through the control of the control unit.

As an example related to the present invention, the controller may set the division period based on network status information with the terminal and buffer status information of the terminal transmitted from the terminal.

As an example related to the present invention, the control unit may transmit a plurality of files additionally generated in response to an information transmission request signal transmitted from the terminal, and an updated list file to the terminal through the communication unit.

According to an aspect of the present invention, there is provided a signal processing method comprising: receiving a list file and a plurality of files transmitted from a server connected to a communication; Arranging the received plurality of files into one data stream based on the received list file; Decoding the aligned data stream; And outputting the decoded data stream.

According to an embodiment of the present invention, the step of sorting the plurality of received files into one data stream may include the step of sorting the plurality of received files into one data stream based on the order information of the plurality of files included in the list file You can sort by stream.

As an example related to the present invention, it may be determined whether or not a tag indicating the end of the list file is included in the list file. Generating an information transmission request signal for requesting transmission of the additional file and the additional list file to the server when the list file does not include the tag indicating the end of the list file; Transmitting the generated information transmission request signal to the server; Receiving a further generated plurality of files and a further updated list file transmitted from the server in response to the information transmission request signal; And sorting the received additional generated files and the updated list file into one data stream, and decoding and outputting the data stream.

According to an aspect of the present invention, there is provided a signal processing apparatus comprising: a communication unit for receiving a list file and a plurality of files transmitted from a communication-connected server; A controller for sorting the received plurality of files into one data stream based on the received list file and decoding the sorted data stream; And a display unit displaying the decoded data stream.

According to an embodiment of the present invention, the control unit may sort the plurality of received files into one data stream based on the order information of the plurality of files included in the list file.

In one embodiment of the present invention, when the tag indicating the end of the list file is not included in the list file, the control unit transmits an information transmission request signal for requesting transmission of the additional file and the additional list file to the server And transmit the generated information transmission request signal to the server through the communication unit.

The signal processing apparatus and method according to an embodiment of the present invention divides a data stream generated during transcoding into a plurality of files such as MPEG-4, etc., and includes information related to the divided files After generating the list file, the generated list file and the divided plurality of files are transmitted to a specific terminal connected to any communication, thereby providing streaming even during transcoding.

1 is a block diagram showing a configuration of a signal processing system according to an embodiment of the present invention.
2 is a block diagram showing a configuration of a server according to an embodiment of the present invention.
3 is a block diagram illustrating a configuration of a terminal according to an embodiment of the present invention.
4 is a flowchart illustrating a signal processing method according to the first embodiment of the present invention.
5 is a flowchart illustrating a signal processing method according to a second embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and a duplicate description thereof will be omitted.

1 is a block diagram showing a configuration of a signal processing system 10 according to an embodiment of the present invention.

1, the signal processing system 10 includes a server 100 and a terminal 200. As shown in Fig.

2, the server 100 includes a first input unit 110, a first communication unit 120, a coding unit 130, a first control unit 140, a first storage unit 150, . Not all the components of the server 100 shown in Fig. 2 are essential components, and the server 100 may be implemented by more components than the components shown in Fig. 2, The server 100 may be implemented.

In addition, the server 100 may be a smart phone, a portable terminal, or a portable terminal, as well as a server such as a streaming server, an information provider center, a call center, Terminal, a mobile terminal, a telematics terminal, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a wibro terminal, an IPTV (Internet Protocol Television ) Terminal, a television, a 3D television, a portable multimedia player (PMP), an AVN (Audio Video Navigation) terminal, a navigation terminal (Navigation Terminal), an A / V And may be any one of various terminals.

The first input unit 110 receives a command or a control signal generated by an operation such as a button operation by a user or a signal according to an optional function selection, or a touch / scroll operation of a displayed screen.

The first input unit 110 receives a signal corresponding to information input by a user and includes a key pad, a touch screen, a dome switch, a touch pad (static pressure / Various kinds of devices such as a mouse, a stylus pen, and a touch pen may be used.

In addition, the first input unit 110 may include at least one microphone (not shown) and / or at least one camera (not shown) for receiving an audio signal and / or a video signal.

The microphone receives an external sound signal (including user's voice (voice signal or voice information)) by a microphone in a communication mode, a recording mode, a voice recognition mode, a video conference mode, And processes it as voice data. The processed audio data may be output through a first audio output unit (not shown) or may be converted into a form that can be transmitted to an external terminal through the first communication unit 120 and output. In addition, the microphone may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The camera may further include a still image (including a gif shape and a jpeg shape) obtained by an image sensor (a camera module or a camera) or a moving image (wma shape, avi shape, asf) obtained in an image communication mode, Shape, and the like). That is, corresponding image data obtained by the image sensor according to a codec (CODEC) is encoded (encoded) according to each standard. The processed image frame may be displayed on the first display unit (not shown) under the control of the first control unit 140. [ For example, the camera captures an object (or a subject) (user image or video conference), and outputs a video signal corresponding to the captured image (object image).

Also, the image frame processed by the camera can be transmitted to any external terminal stored in a first storage unit (not shown) or communicated through the first communication unit 10.

That is, the first input unit 110 receives multimedia information through the microphone and / or the camera. Here, the multimedia information (or data stream) includes audio information received through the microphone, video information / image information (including still images, moving pictures, etc.) received through the camera (or captured) And date information at the time when the audio information / video information is received (or date information when the multimedia information is generated).

The first communication unit 120 performs communication connection with an arbitrary server (not shown) / the terminal 200 under the control of the first control unit 140. In this case, the first communication unit 120 may include a wired / wireless communication module. Herein, the wireless Internet technology may be a wireless LAN (WLAN), a Wi-Fi, a wireless broadband (Wibro), a World Interoperability for Microwave Access (HSDPA), IEEE 802.16, Long Term Evolution (LTE), Wireless Mobile Broadband Service (WMBS), and the like. The Short Range Communication Technology may include Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like. The wired communication technology may include USB (Universal Serial Bus) communication, and the like.

The first communication unit 120 may transmit multimedia information (video signal (or video information) and / or audio signal (or voice information), etc.) transmitted from any server / ), Control signals, and the like.

The first communication unit 120 may be configured to transmit a control signal, multimedia information (including audio information, video information, etc.), a list file, a plurality of pieces of divided multimedia information Stream or file) to the server / terminal 200.

Also, the first communication unit 120 confirms the network status with any terminal connected to the communication.

Also, the first communication unit 120 receives information on the buffer status of the corresponding terminal transmitted from the arbitrary terminal connected to the communication.

Also, the first communication unit 120 performs a call function with an arbitrary wireless terminal. At this time, the call function may include a data communication function, a voice communication function, an image / video conference / call function, a message function, and the like.

Also, the first communication unit 120 may include an antenna (not shown).

Here, the antenna is composed of one or a plurality of antennas, and is connected to a satellite (not shown) and / or a base station (or an arbitrary external terminal) through a wired / wireless communication network And transmits / receives data (or information).

In addition, the antenna may be a general-purpose antenna capable of transmitting / receiving signals of various frequency bands.

The first communication unit 120 may further include a tuner for receiving and outputting a broadcast signal corresponding to a selected channel among the broadcast signals received through the antenna.

Also, the first communication unit 120 receives a broadcast signal corresponding to a channel set through the tuner. At this time, the received broadcast signal includes an audio signal (including audio data, music data, etc.), various control signals, and additional information (including a stereo indicator), and corresponds to the multimedia information.

In addition, the first communication unit 120 may switch the video signal and / or the audio signal included in the received broadcast signal into video data (or video stream) and / or audio data (or audio stream) And converting the video signal or audio signal included in the received broadcast signal into video data or audio data in the form of a data stream, respectively.

The encoding unit 130 encodes (or encodes) a data stream received through the first input unit 110 or the first communication unit 120. At this time, the encoding process can be performed using a codec such as MPEG4. Here, the data stream may include a video signal and / or an audio signal processed in real time (or live), or may include a data stream that transcodes a file that has already been generated can do.

In addition, the function of the encoding unit 130 may be performed by the first control unit 140. [

The first control unit 140 executes the overall control function of the server 100. [

The first control unit 140 controls the buffer status of the specific terminal 200 transmitted from the specific terminal 200 connected to any communication received through the first communication unit 120, And sets the segmentation duration based on the network state of the network. At this time, the dividing period means a period (or time) for dividing the data stream into files having an arbitrary time (or reproduction time). Here, the network state includes jitter due to various causes, network delay time, and the like.

The first control unit 140 divides the data stream encoded through the encoding unit 130 into a plurality of files (or a plurality of data streams) based on the set division period. At this time, the first controller 140 generates a list file including information related to a plurality of files divided into the plurality of files. Here, the list file may include a plurality of file names to be divided, order information (or index information) of the plurality of files to be divided, position information of the plurality of files to be divided in the first storage unit 150 A tag (or information) indicating the end of the list file, and a duration information per divided file, which are included in the list file (for example, including http information).

The first control unit 140 transmits the generated list file and the divided plurality of files to the terminal 200 through the first communication unit 120. [

When the list file is updated, the first control unit 140 transmits the updated list file and one or more additional files corresponding to the updated list file to the terminal (e.g., 200).

The first controller 140 divides the further received and encoded data stream into a plurality of new files based on the set division period in real time and generates a new list file And transmits the file and the plurality of newly divided files to the terminal 200 through the first communication unit 120. [

In addition, when the first control unit 140 receives a request signal for transmission of the additional list file and the additional file transmitted from the terminal 200 through the first communication unit 120, the first control unit 140 transmits the received request signal (Or updated) list file and the additional divided file to the terminal 200 through the first communication unit 120 in response to the request.

The first storage unit 150 stores various user interfaces (UI) and / or a graphical user interface (GUI).

In addition, the first storage unit 150 stores data and programs necessary for the server 100 to operate.

The first storage unit 150 stores various information including a control signal, a broadcast signal, and the like received through the first communication unit 120.

The first storage unit 150 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a magnetic disk, a magnetic disk, an optical disk, a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read- Memory, and a programmable read-only memory (PROM).

The first storage unit 150 buffers the multimedia information (or the data stream) received through the first communication unit 120 and controls the received multimedia data Store information.

3, the terminal 200 includes a second communication unit 210, a second storage unit 220, a second control unit 230, a second display unit 240, a second audio output unit 240, (250). All of the components of the terminal 200 shown in Fig. 3 are not essential components, and the terminal 200 may be implemented by more components than the components shown in Fig. 3, The terminal 200 may be implemented.

The terminal 200 may be a smart phone, a portable terminal, a mobile terminal, a telematics terminal, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a WiBro terminal, an IPTV terminal, a television, a 3D television, a portable multimedia player PMP), an AVN terminal, a navigation terminal (vehicle navigation device), an A / V system, and the like.

The second communication unit 210 performs communication connection with an arbitrary server 100 / terminal under the control of the second control unit 230. At this time, the second communication unit 210 may include a wired / wireless communication module. Herein, the wireless Internet technology may be used in a wireless LAN (WLAN), Wi-Fi, Wibro, WiMAX, HSDPA, IEEE 802.16, Long Term Evolution (WMBS), and the like. The local area communication technology may include Bluetooth, RFID, IrDA, Ultra Wideband (UWB), ZigBee, and the like. The wired communication technology may include USB communication and the like.

The second communication unit 210 may transmit multimedia information (video signal (or video information) and / or audio signal (or voice information)) transmitted from any server 100 / terminal ), Control signals, and the like.

The second communication unit 210 may be configured to transmit control signals, multimedia information (including audio information, video information, etc.), a list file, a plurality of divided files (multimedia information Or a data stream) to the server 100 / terminal. Here, the list file includes the plurality of file names, the order information (or index information) of the plurality of files, the location information (for example, the location information (E.g., http information stored in the server 100 / terminal, etc.), a tag indicating the end of the list file, and the period information per file.

In addition, the second communication unit 210 may check the network status of the server 100 connected to the communication under the control of the second control unit 230, and may transmit information related to the checked network status to the server 100).

The second communication unit 210 may transmit information (or buffer status information) related to the buffer status of the second storage unit 220 to any of the communication-connected servers (100) / terminal.

In addition, the second communication unit 210 performs a call function with an arbitrary wireless terminal. At this time, the call function may include a data communication function, a voice communication function, an image / video conference / call function, a message function, and the like.

The second storage unit 220 stores various user interface (UI) and / or graphical user interface (GUI).

In addition, the second storage unit 220 stores data and programs necessary for the terminal 200 to operate.

The second storage unit 220 stores various information including control signals, broadcast signals, and the like received through the second communication unit 210.

The second storage unit 220 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a magnetic memory, a magnetic disk, (RAM), an SRAM, a ROM, an EEPROM, and a PROM.

The second storage unit 220 buffers a plurality of files (multimedia information or a data stream) received through the second communication unit 210 and controls the second storage unit 220 And stores a plurality of received files.

The second control unit 230 performs an overall control function of the terminal 200.

The second control unit 230 arranges the plurality of received files into one data stream based on the list file received through the second communication unit 210. [

The second control unit 230 decodes the aligned data stream, displays the video data included in the decoded data stream through the second display unit 240, And outputs the audio data included in the decoded data stream through the second audio output unit 250.

Also, the second control unit 230 may check the network status with any server 100 / terminal communicatively connected through the second communication unit 210, and may transmit information related to the checked network status to the second To the server (100) or the specific terminal through the communication unit (210).

In addition, the second controller 230 may be configured to buffer (or temporarily store) the multimedia information (or the data stream) transmitted from the arbitrarily connected server 100 in the second storage unit 220 (Or a buffer state of a RAM included in the second storage unit 220) of the state (or information related to the buffering state) through the second communication unit 210 to the server 100 or To the specific terminal.

Also, the second control unit 230 may check the tag indicating the end of the list file included in the received list file, and if the tag indicating the end of the received list file is not included in the received list file (Or updated) list file to the server 100 or the specific terminal through the second communication unit 210, and generates a request signal for requesting transmission of a new file And transmits the request signal to the server 100 or the specific terminal through the second communication unit 210.

In addition, when the tag indicating the end of the received list file is included in the received list file, the second controller 230 transmits the data stream corresponding to the last file among the plurality of received files 2 display unit 240 and / or the second audio output unit 250, and then the entire process is terminated.

The second display unit 240 displays the video data included in the data stream received through the second communication unit 210 under the control of the second control unit 230.

In addition, the second display unit 240 can display various menu screens and route guidance information using the user interface and / or graphical user interface included in the second storage unit 220 under the control of the second control unit 230. [ Information and the like can be displayed. Here, the content displayed on the second display unit 240 includes various text or image data (including map data and various information data) and a menu screen including data such as an icon, a list menu, and a combo box.

The second display unit 240 may be a liquid crystal display (LCD), a thin film transistor liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) , A flexible display, a three-dimensional display (3D display), and a light emitting diode (LED).

In addition, the second display unit 240 may include a haptic module (not shown). The haptic module generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module is vibration. The intensity and pattern of the vibration generated by the haptic module can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to vibration, the haptic module may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, contact of an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

In addition, the haptic module can transmit a tactile effect through direct contact, and the tactile effect can be felt by a user through a muscular sense such as a finger or an arm. In addition, at least one haptic module may be provided according to the configuration of the terminal 200.

The second audio output unit 250 outputs audio information included in a signal processed by the second control unit 230 (including the data stream). Here, the second audio output unit 250 may be a speaker.

The server 100 may further include a first display unit (not shown) for performing functions of the second display unit 240 and the second audio output unit 250 described in the terminal 200, (Not shown).

The terminal 200 may further include a second input unit (not shown) for performing a function of the first input unit 110 described in the server 100.

As described above, the signal processing system 10 divides the data stream generated during the transcoding into a plurality of files such as MPEG-4 or the like, generates a list file including information related to the plurality of divided files, And transmit the generated list file and the plurality of divided files to a specific terminal connected to any communication.

Hereinafter, a signal processing method according to the present invention will be described in detail with reference to FIGS. 1 to 5. FIG.

4 is a flowchart illustrating a signal processing method according to the first embodiment of the present invention.

First, the first input unit 110 outputs a video signal output from a camera (not shown) included in the first input unit 110 and / or a video signal output from a microphone (not shown) included in the first input unit 110 RTI ID = 0.0 > a < / RTI > audio signal.

In addition, the first communication unit 120 may receive a data stream (including a video signal and / or an audio signal) transmitted from an arbitrary streaming server or an arbitrary mobile terminal.

Here, the received data stream may include a video signal and / or an audio signal that is processed in real time (or live), or may include a data stream that transcodes one file that has already been generated (S110).

Then, the encoding unit 130 encodes the received data stream (including a video signal and / or an audio signal).

For example, the encoding unit 130 encodes the received data stream in MPEG4 format (S120).

Then, the first controller 140 determines whether the buffer state (or buffer state information) of the specific terminal transmitted from the specific terminal communicated through the first communication unit 120 and the network state (or buffer state information) And network status information). At this time, the dividing period means a period (or time) for dividing the data stream into files having an arbitrary time (or reproduction time). Here, the network state includes jitter, network delay time, and the like.

For example, the first controller 140 determines whether the playback time (for example, 15 seconds) of the buffered content according to the buffer status of the specific terminal (e.g., the terminal 200) (For example, 10 seconds) and a delay time depending on the network condition (for example, 2 seconds as a delay time depending on the jitter of the network) And sets a value obtained by adding the set value (for example, 1 second) to a new division period (for example, 11 seconds). In this case, the predetermined value may be a value smaller than the delay time according to the network state. The preset value may be set to a value larger than the delay time according to the network state according to the designer's design.

In another example, when the playback time of the buffered content according to the buffer status of the specific terminal is less than the sum of the delay time according to the previous partition period and the network status, (For example, 1 second) is set to a new division period (for example, 9 seconds).

As another example, when the playback time of the buffered content according to the buffer status of the specific terminal is equal to the sum of the delay time according to the previous partition period and the network status, the first controller 140 changes the previous partition period as it is (S130).

Then, the first controller 140 divides (or generates) the encoded data stream into a plurality of files based on the set division period.

For example, the first controller 140 divides a data stream encoded in the MPEG4 format into a plurality of MPEG4 files (or data streams) based on the set division period.

When dividing the encoded data stream into a plurality of files, the first control unit 140 generates a list file including information related to the plurality of files to be divided. Here, the list file may include a plurality of file names to be divided, order information (or index information) of the plurality of files to be divided, position information of the plurality of files to be divided in the first storage unit 150 (Or information) indicating the end of the list file, and duration information per divided file (step S 140).

Thereafter, the first control unit 140 transmits the generated list file and the divided plurality of files to the specific terminal communicatively connected through the first communication unit 120 (S150).

Thereafter, when the first control unit 140 receives the information transmission request signal transmitted from the specific terminal through the first communication unit 120, the first control unit 140 generates a plurality of files And an additionally generated list file (or an updated list file) to the specific terminal (S160).

5 is a flowchart illustrating a signal processing method according to a second embodiment of the present invention.

First, the second communication unit 210 receives a list file and a plurality of files transmitted from an arbitrary server / terminal. At this time, the list file may include a plurality of file names, order information (or index information) of the plurality of files, position information (e.g., stored in the server / terminal) (Or information) indicating the end of the list file, and one or more pieces of information of the plurality of pieces of file period information. In addition, the received plurality of files are files containing multimedia information (video signals and / or audio signals).

In addition, when the second communication unit 210 generates a new list file or updates an existing list file in the arbitrary server / terminal, the second communication unit 210 transmits the generated new list file or update List file in real time.

In addition, the second storage unit 220 buffers the received plurality of files (S210).

Thereafter, the second controller 230 arranges the received (or buffered) files into one data stream based on the received list file (S220).

Thereafter, the second controller 230 decodes the aligned data stream, displays the video signal included in the decoded data stream on the second display unit 240, and stores the decoded data stream in the decoded data stream And outputs the audio signal through the second audio output unit 250 (S230).

Thereafter, the second controller 230 determines whether the tag indicating the end of the list file is included in the list file (S240).

If it is determined that the list file does not include the tag indicating the end of the list file, the second control unit 230 may notify the arbitrary server / terminal of an additional file and updated (or newly created ) List file from the arbitrary server / terminal in response to the information transmission request signal, and transmits the generated information transmission request signal to the server / Via the second communication unit 210, an additional file to be transmitted and an updated (or newly created) list file. Thereafter, the second control unit 230 repeatedly performs the step S220 for the received additional file and the updated list file (S250).

If it is determined that the list file includes a tag indicating the end of the list file, the second control unit 230 may search for the last file among the plurality of received files based on the list file And outputs the decoded file through the second display unit 240 and / or the second audio output unit 250 (S260).

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: Signal processing system 100: Server
200: terminal 110: first input unit
120: first communication unit 130:
140: first control unit 150: first storage unit
210: second communication unit 220: second control unit
230: second display section 240: second audio output section

Claims (17)

Encoding a received data stream;
Setting a partitioning period based on network state information of a terminal connected to communication and buffer state information of the terminal transmitted from the terminal;
Dividing the encoded data stream into a plurality of files based on the set division period, and generating a list file including information related to the plurality of files to be divided; And
And transmitting the generated list file and the plurality of divided files to the terminal. 2. The method of claim 1,
And a data stream that includes a video signal and / or an audio signal that is processed live, or that transcodes one file that has already been generated. 2. The method according to claim 1,
Setting a value obtained by adding a value preset in the previous partitioning period to a new partitioning period when the playback time of the buffered contents according to the buffer status of the terminal is greater than the sum of the previous partitioning time and the delay time according to the network state ;
Setting a value obtained by subtracting the predetermined value from the previous division period to a new division period when the playback time of the buffered content is less than a sum of the previous division period and the delay time according to the network state; And
And maintaining the previous division period when the reproduction time of the buffered contents is equal to the sum of the delay time according to the previous division period and the network state. The method according to claim 1,
And information on at least one of the plurality of file names, the order information of the plurality of files, the location information in which the plurality of files are stored, the tag indicating the end of the list file, / RTI > The method according to claim 1,
Receiving an information transmission request signal transmitted from the terminal; And
Further comprising the step of transmitting to the terminal a plurality of additional files generated in response to the information transmission request signal and a further updated list file. An encoding unit encoding the received data stream;
Setting a dividing period based on network state information of the terminal connected to the communication and the buffer state information of the terminal transmitted from the terminal, dividing the coded data stream into a plurality of files based on the set dividing period, A control unit for generating a list file including information related to a plurality of files to be divided; And
And a communication unit for transmitting the generated list file and the divided plurality of files to a terminal connected to communication through the control of the control unit. 7. The method of claim 6,
And a data stream that includes a video signal and / or an audio signal processed live, or transcodes one file that has already been generated. delete 7. The method according to claim 6,
And information on at least one of the plurality of file names, the order information of the plurality of files, the location information in which the plurality of files are stored, the tag indicating the end of the list file, . 7. The apparatus of claim 6,
And transmits to the terminal through the communication unit, a plurality of additional files generated in response to the information transmission request signal transmitted from the terminal, and a further updated list file. The method according to claim 1,
Receiving a list file and a plurality of files transmitted from a communication-connected server;
Arranging the received plurality of files into one data stream based on the received list file;
Decoding the aligned data stream; And
And outputting the decoded data stream. The method according to claim 11,
And information on at least one of the plurality of file names, the order information of the plurality of files, the location information in which the plurality of files are stored, the tag indicating the end of the list file, / RTI > 13. The method of claim 12, wherein the step of arranging the received plurality of files into one data stream comprises:
And arranging the received plurality of files into one data stream based on order information of the plurality of files included in the list file. 12. The method of claim 11,
Confirming whether the list file includes a tag indicating an end of the list file;
Generating an information transmission request signal for requesting transmission of the additional file and the additional list file to the server when the list file does not include the tag indicating the end of the list file;
Transmitting the generated information transmission request signal to the server;
Receiving a further generated plurality of files and a further updated list file transmitted from the server in response to the information transmission request signal; And
Further comprising: sorting the received additional generated files and the updated list file into one data stream, and decoding and outputting the sorted data streams. The method according to claim 6,
A second communication unit for receiving a list file and a plurality of files transmitted from a communication-connected server;
A second controller for sorting the received plurality of files into one data stream based on the received list file and decoding the sorted data stream; And
And a display unit for displaying the decoded data stream. 16. The apparatus of claim 15,
And arranges the received plurality of files into one data stream based on order information of a plurality of files included in the list file. 16. The apparatus of claim 15,
Generating an information transmission request signal for requesting transmission of the additional file and the additional list file to the server when the tag indicating the end of the list file is not included in the list file, And transmits the signal to the server through the communication unit.

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