KR100824319B1 - System for providing rewind streaming service and method thereof - Google Patents

Abstract

The present invention relates to a streaming system and a method for providing a rewind service.

According to the present invention, the buffer unit delays the encoded live broadcast signal for a specific time. The rewind streaming controller receives the rewind request signal and checks the time for which the rewind is requested. The storage location of the broadcast signal broadcasted at the time of the rewinding is searched and obtained. The acquired live signal is transmitted using streaming.

Wired and wireless real time broadcasting service, Delay TV function

Description

System for providing rewind streaming service and method

1 is a diagram showing a network configuration for providing a rewind streaming service according to an embodiment of the present invention.

2 is a diagram showing the configuration of a streaming system for providing a rewind service according to an embodiment of the present invention.

3 is a diagram illustrating a detailed configuration of a buffer unit according to a first embodiment of the present invention.

4 is a diagram illustrating a detailed configuration of a buffer unit according to a second embodiment of the present invention.

5 is a diagram showing the detailed configuration of the rewind streaming control unit according to the first embodiment of the present invention.

6 is a diagram illustrating a detailed configuration of a rewind streaming controller according to a second embodiment of the present invention.

7 is a flowchart illustrating a streaming method for providing a rewind service according to a first embodiment of the present invention.

8 is a flowchart illustrating a streaming method for providing a rewind service according to a second embodiment of the present invention.

9 is a flowchart illustrating a streaming method of providing a rewinding service according to a third embodiment of the present invention.

10 is a diagram showing an example of a screen for providing a rewind service according to the first embodiment of the present invention.

11 illustrates an example of a screen providing a rewind service according to a second embodiment of the present invention.

The present invention relates to a streaming system and a method for providing a rewind service.

With the development of multimedia technology, there is a growing variety of providers of moving pictures and broadcasting programs. In particular, due to the development of mobile communication technology and the Internet, various broadcast programs or moving images are provided by using a mobile communication (or wireless) terminal or a wired terminal capable of accessing the Internet.

Conventionally, when providing live broadcast content through a wired or wireless terminal, a streaming method is used. In other words, by receiving and encoding broadcasting signals transmitted in real time and providing streaming through wired / wireless internet network, it is possible to obtain the same effect as watching offline TV broadcasting without downloading the entire broadcasting signal. do.

However, such live broadcast streaming services cannot be rewound like a VOD service, so if the current broadcast content is missed or used, the rebroadcast service provided according to the broadcaster's one-way programming schedule is inevitable.

Alternatively, recording should be performed while the broadcast is in progress. In this case, since the amount of recording is limited by the terminal memory capacity and the like, it is limited to the selected specific broadcast program. In addition, there is a problem that it is not possible to re-watch the corresponding random past broadcast seconds or minutes or hours ago.

Accordingly, an object of the present invention is to provide a streaming service system and a method for providing a rewind service.

Streaming system according to a feature of the present invention to achieve the problem as described above,
A system for streaming a live broadcast signal encoded in real time to a user terminal through a wired / wireless internet network, the system comprising: a buffer unit for buffering the streamed live broadcast signal for a specific time; And at the same time streaming the live broadcast signal and storing it in the buffer unit, and when a rewind streaming request is received from the user terminal, the stream is streamed at the time when the rewind streaming is requested, and the live broadcast signal stored in the buffer unit is extracted and provided to the user terminal. And a rewind streaming control unit.

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Streaming method according to a feature of the present invention,

A method of streaming a live broadcast signal encoded in real time to a user terminal through a wired / wireless internet network, the method comprising the steps of: (a) receiving a rewind streaming request from the user terminal; (b) searching for a buffer unit in which the encoded live broadcast signal is buffered based on the rewind streaming requested time; And (c) extracting and transmitting a live broadcast signal corresponding to the requested rewind streaming time obtained through step (b).

Streaming method according to another feature of the present invention,

A method for streaming a live broadcast signal encoded in real time to a user terminal through a wired / wireless internet network, the method comprising: (a) classifying the encoded live broadcast signal according to a streaming request from the user terminal; (b) The first live broadcast signal classified in step (a) is buffered in a first buffer for buffering the live broadcast signal requested by the user terminal, and the second live broadcast signal is used for delaying and buffering the encoded live broadcast signal. Buffering in a second buffer; (c) streaming the first live broadcast signal buffered in the first buffer to the user terminal; And (d) if the rewind streaming request is received from the user terminal, extracting and streaming a live broadcast signal corresponding to the rewinding request time from the second buffer.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted for simplicity of explanation, and like reference numerals designate like parts throughout the specification.

In addition, when a part is said to "include" a certain component, this means that it may further include other components, except to exclude other components unless otherwise stated.

In addition, the term module described herein refers to a unit for processing a specific function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

Now, a streaming system for providing a rewind service according to an embodiment of the present invention and a method thereof will be described in detail with reference to the accompanying drawings.

1 is a diagram showing a network configuration for providing a rewind streaming service according to an embodiment of the present invention.

According to FIG. 1, a network configuration for providing a rewind streaming service includes a user terminal 100, a wired / wireless internet network 200, a streaming system 300, an encoding server 400, and a broadcasting station 500.

The user terminal 100 is a terminal connected to the wired / wireless internet network 200 and corresponds to a terminal capable of receiving a real time broadcast signal. The user terminal 100 is a terminal having a web browser and displaying a user interface screen in the form of text or graphic and thus receiving various Internet services.

The wired / wireless internet network 200 is connected to the user terminal 100 and the streaming system 300 to configure a network for providing a real-time live broadcast signal.

The streaming system 300 encodes a live broadcast signal transmitted from the broadcasting station 500 in real time through the encoding server 400 and transmits it to the user terminal 100 using streaming. At this time, the streaming system 300 provides a rewind streaming service. That is, the encoded live broadcast signal is delayed for a specific time and buffered, and at the request of the user terminal 100, a buffered live broadcast signal delayed at a corresponding rewind time is provided.

Looking at the configuration of such a streaming system 300 in more detail as follows.

2 is a diagram showing the configuration of a streaming system for providing a rewind service according to an embodiment of the present invention.

According to FIG. 2, the streaming system 300 includes a streaming controller 320, a rewind streaming controller 340, a streaming unit 360, and a buffer unit 380.

The streaming control unit 320 controls an operation of receiving the encoded live broadcast signal from the encoding server 400 and transmitting the stream through the streaming unit 360 according to the streaming request of the user terminal 100.

The rewind streaming control unit 340 controls an operation of searching for a corresponding broadcast signal delayed in the buffer unit 380 and transmitting it through the streaming unit 360 according to the rewind streaming request of the user terminal 100.

The streaming unit 360 transmits the broadcast signal to the user terminal 100 using streaming under the control of the streaming control unit 320 and the rewind streaming control unit 340.

The buffer unit 380 receives and buffers the live broadcast signal to be currently transmitted by the streaming control unit 320 from the encoding server 400, and stores and delays and stores the broadcast signal for rewinding and streaming by the rewind streaming control unit 340.

3 is a diagram illustrating a detailed configuration of a buffer unit according to a first embodiment of the present invention.

First, FIG. 3 is a diagram illustrating a detailed configuration of a buffer unit of a streaming system that provides a rewind service according to a first embodiment of the present invention.

According to FIG. 3, the buffer unit 380 may include a buffer group 384 composed of a plurality of buffers and a buffer control module 382 ′ controlling the buffer group 384.

Here, the buffer group 384 is composed of 'n' buffers, and each buffer buffers a live broadcast signal corresponding to the corresponding capacity under the control of the buffer control module 382 '.

The buffer control module 382 ′ buffers the encoded live broadcast signal ① received from the encoding server 400 in the first buffer. When the first buffer is full, the next encoded live broadcast signal ② is buffered in the second buffer. The live signal received after the n-th buffer is filled with the live signal ⓝ is buffered in the first buffer. When the first buffer is full, the second buffer is buffered. At this time, the live broadcast signals ① and ② buffered in the first buffer and the second buffer are discarded.

In other words, the live broadcast signal is buffered in the 'n' buffers, and the live broadcast signal received after the nth buffer is full is stored after discarding the live broadcast signal stored in the first buffer, thereby saving the 'n' buffers. The live signal can be delayed by a time corresponding to the total capacity. Then, it is possible to search for and transmit the requested broadcast signal from the live broadcast signal delayed in the rewind streaming request.

4 is a diagram illustrating a detailed configuration of a buffer unit according to a second embodiment of the present invention.

Next, FIG. 4 is a diagram illustrating a detailed configuration of a buffer unit of a streaming system that provides a rewind service according to a second embodiment of the present invention.

According to FIG. 4, the buffer unit 380 may include a transmission buffer 386, a delay buffer 388, and a buffer control module 382 ″ controlling them.

Here, the transmission buffer 386 buffers the live broadcast signal ① to be transmitted now through the streaming unit 360, and the delay buffer 388 delays the live broadcast signal for a specific time. In this case, the delay buffer 388 may be formed in the form of a buffer group as shown in FIG. 3, or may be configured as a single large buffer, which can be various embodiments.

The buffer control module 382 ″ receives the live broadcast signal ① to be streamed through the streaming unit 360 according to the request of the user terminal 100 from the encoding server 400 to control the buffering in the transmission buffer 386. Then, the live broadcast signal ① 'is received from the encoding server 400 for rewinding streaming to control the buffering in the delay buffer 388.

Then, in the subsequent rewind streaming request, the requested broadcast signal may be searched for and transmitted from the live broadcast signal stored in the delay buffer 388.

In addition, the configuration of the rewind streaming control unit 340 may be made as follows for each embodiment.

5 is a diagram showing the detailed configuration of the rewind streaming control unit according to the first embodiment of the present invention.

According to FIG. 5, the rewind streaming controller 340 may include a first receiving module 341, a first analysis module 342, a first search module 343, and a first control module 344.

The first receiving module 341 receives a rewind streaming request from the user terminal 100. At this time, the rewind streaming request is activated by the rewind button and includes a rewind button press time.

The first analysis module 342 analyzes the preset rewind time mapped to the rewind button press time received by the first receiving module 341.

The first search module 343 searches the buffer unit 380 based on the rewind time analyzed by the first analysis module 342.

The first control module 344 requests the buffer unit 380 to sequentially output the live broadcast signal searched by the first search module 343 to the streaming unit 360.

Then, the streaming unit 360 transmits the live broadcast signal output from the buffer unit 380 to the user terminal 100.

6 is a diagram illustrating a detailed configuration of a rewind streaming controller according to a second embodiment of the present invention.

Next, FIG. 6 is a diagram illustrating a detailed configuration of a rewind streaming controller 340 of a streaming system for providing a rewind service according to a second embodiment of the present invention.

According to FIG. 6, the rewind streaming control unit 340 includes a service providing module 345, a second receiving module 346, a second searching module 347, and a second control module 348.

When the service providing module 345 receives the rewind streaming request from the user terminal 100, the service providing module 345 transmits a rewind time selection menu.

The second receiving module 346 receives a rewind time selection signal according to a rewind time selection menu provided by the service providing module 345 from the user terminal 100.

The second search module 347 searches for the corresponding live broadcast signal to the buffer unit 380 based on the rewind time selection received by the second receiving module 346.

Then, the second control module 348 requests the buffer unit 380 to sequentially output the live broadcast signal searched by the second search module 347 to the streaming unit 360, and the streaming unit 360 requests the user. Transmit to the terminal 100.

FIG. 7 is a flowchart illustrating a streaming method for providing a rewind service according to a first embodiment of the present invention. In particular, the present invention relates to a streaming method showing a detailed buffering process by applying the embodiment of FIG. 3.

According to FIG. 7, when the encoded live broadcast signal is received (S101), it is determined whether a capacity required for buffering the encoded live broadcast signal exceeds an extra buffer capacity in the nth buffer (S103).

When the n th buffer is exceeded, the existence of the n + 1 th buffer is determined (S105).

If the n + 1 th buffer exists, it is buffered in the n + 1 th buffer (S107).

If the n th +1 buffer does not exist, the live broadcast signal buffered in the n th buffer is discarded (S109), and the encoded live broadcast signal is buffered in the n th buffer (S111).

On the other hand, if the n-th buffer is not exceeded, the buffer is also buffered in the n-th buffer (S111).

In this case, when a rewind streaming request is received from the user terminal (S113), a buffer in which the live broadcast signal corresponding to the rewinding request time is stored is searched (S115).

Then, the live broadcast signal corresponding to the rewinding request time is extracted and streamed from the live broadcast signal buffered in the buffer (S117).

Here, 'n' refers to the number of buffers and 'n≥1', and has a value corresponding to the total capacity of the buffer for delaying the encoded live broadcast signal for a specific time.

FIG. 8 is a flowchart illustrating a streaming method for providing a rewind service according to a second embodiment of the present invention. In particular, the present invention relates to a streaming method showing a detailed buffering process by applying the embodiment of FIG. 4.

Referring to FIG. 8, when an encoded live broadcast signal is received (S201), classification is performed according to a streaming request from a user terminal (S203).

As a result of the classification, when the encoded live broadcast signal is the streaming requested live broadcast signal, that is, the first live broadcast signal (S205), the user terminal buffers the first live signal for buffering (S207) and simultaneously buffers the second buffer. The process of buffering the second buffer will be described later.

As a result of the classification, when the encoded live broadcast signal is a live broadcast signal that is not requested to be streamed, that is, a second live broadcast signal and in the case of the first live broadcast signal, it is determined whether the capacity required for buffering exceeds the extra capacity of the second buffer ( S209).

When exceeding, the live broadcast signal buffered in the second buffer is discarded (S211), and then the first live broadcast signal and the second live broadcast signal are buffered in the second buffer (S213). Here, among the buffered live broadcast signals, the live broadcast signals with the oldest buffered time points are discarded first.

In addition, when it does not exceed, it buffers in a 2nd buffer (S213).

In operation S215, the first live broadcast signal buffered in the first buffer is streamed to the user terminal.

At this time, when the rewind streaming request is received from the user terminal (S217), the live broadcast signal corresponding to the rewind request time is extracted from the second buffer and streamed (S219).

FIG. 9 is a flowchart illustrating a streaming method for providing a rewind service according to a third embodiment of the present invention. In particular, FIG. 9 illustrates a rewind streaming process applying the embodiments of FIGS. 5 and 6 in detail.

According to FIG. 9, when a rewind streaming request is received from the user terminal (S301), it is determined whether the received rewind request signal is a key button press signal (S303).

In this case, when the key button press signal is received, that is, when a specific key signal for requesting rewind streaming is received, the key press time is analyzed by analyzing the specific key signal (S305).

The corresponding rewind request time is determined based on the key press time (S307).

On the other hand, if it is not the key button pressing signal, a rewind time selection screen for selecting a rewind time is provided (S309).

In operation S311, the selected rewind time selection signal is received through the rewind time selection screen. In this case, a preset rewind time selection signal provided through the rewind time selection screen may be received, or a rewind time selection signal arbitrarily input through the rewind time selection screen may be received.

When the time required for rewinding is determined through the step S307 or the step S311, the current time is checked (S313).

A live broadcast signal having a time corresponding to the requested time of rewinding is obtained from the current time checked by searching the buffer unit based on the requested time of rewinding streaming (S315).

Then, the network is sequentially streamed from the obtained live signal and transmitted (S317).

FIG. 10 is a diagram illustrating an example of a screen providing a rewind service according to the exemplary embodiment of FIG. 5.

According to FIG. 10 (a), the user terminal 100 accesses a wired / wireless internet network and selects a real time broadcast.

According to FIG. 10 (b), it is an example of a screen for selecting a desired channel from various channels for transmitting real time broadcasts.

According to FIG. 10 (c), it is an example of a screen that receives and outputs a real time broadcast through a selected channel. In this case, when the rewind button provided at the bottom of the screen is pressed for a predetermined time, the previous broadcast signal broadcasted at a time corresponding to the rewind time mapped to the pressing time may be viewed again. For example, pressing the rewind button for 5 seconds may receive and output a broadcast signal of 30 minutes ago and press and hold the rewind button for 10 seconds to receive and output a broadcast signal of 1 hour ago. In this case, when the time when the rewind button is pressed exceeds a predetermined time, the first broadcast signal of the corresponding channel delayed by buffering may be received and output.

Referring to FIG. 10 (d), as shown in FIG. 10 (c), a broadcast signal broadcast at the corresponding rewind request time, that is, a rewinded broadcast signal, is output in response to a rewind request by clicking a rewind button.

FIG. 11 is a diagram illustrating an example of a screen providing a rewind service according to the embodiment of FIG. 6.

11 (a), 11 (b) and 11 (c) are screen examples corresponding to FIGS. 11 (a), 11 (b) and 11 (c).

Referring to FIG. 11 (d), it is an example of a rewind time selection menu screen received from the streaming system 300 in response to a rewind request. As shown, items that can be selected in units of minutes and hours may be listed, and items for entering a rewind time may be listed.

FIG. 11E illustrates a screen example of outputting a broadcast signal corresponding to the rewind time selected by FIG. 11D, that is, a rewinded broadcast signal.

The embodiments of the present invention described above are not implemented only through the apparatus and the method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded. Implementation may be easily implemented by those skilled in the art from the description of the above-described embodiments.

The scope of the present invention is not limited to the above-described embodiments, but various modifications and improvements of those skilled in the art using the basic concept of the present invention as defined in the following claims are also within the scope of the present invention.

 As described above, according to the exemplary embodiment of the present invention, since the last broadcast can be viewed like a live broadcast, the recording or re-broadcast time wait or recording is not required for viewing the previous broadcast. In addition, since there is no need for a separate file content for re-broadcasting, the memory capacity may not be affected.

Claims (12)

A system for streaming a live broadcast signal encoded and output in real time to a user terminal through a wired or wireless internet network, A buffer unit which buffers the live broadcast signal to be streamed and delays the signal for a specific time; And Simultaneously streaming the live broadcast signal and storing the live signal in the buffer unit, and when a rewind streaming request is received from the user terminal, the live stream is streamed at the time when the rewind streaming is requested, and the live broadcast signal stored in the buffer unit is extracted and provided to the user terminal. Rewind streaming controls Streaming system comprising a. The method of claim 1, The buffer unit, A buffer group composed of a plurality of buffers; And A buffer control module for buffering the encoded live broadcast signal for each of the plurality of buffers and delaying the encoded live broadcast signal for a specific time Streaming system comprising a. The method of claim 2, The buffer control module, The encoded live broadcast signal is sequentially buffered in the plurality of buffers, and buffered in the next buffer when the buffer to be buffered is full, and in the absence of the next buffer, the previously broadcast live buffer of the buffer having the highest buffering rank. And discarding the signal and buffering the buffer in a buffer having a high buffering rank. The method of claim 1, The buffer unit, A transmission buffer for buffering the live broadcast signal requested by the user terminal from the encoded live broadcast signal; A delay buffer for buffering and encoding the encoded live broadcast signal for a specific time; And A buffer control module for buffering the encoded live broadcast signal according to a result of classification whether to buffer the encoded live broadcast signal to the transmission buffer or the delay buffer according to whether a streaming request from the user terminal is requested Streaming system comprising a. The method of claim 4, wherein The delay buffer is, And a buffer having a capacity corresponding to a specific time for delaying the encoded live broadcast signal. The method according to any one of claims 1 to 5, The rewind streaming control unit, A first receiving module for receiving a specific key signal for requesting rewind streaming from the user terminal; A first analysis module configured to analyze the specific key signal to identify a key press time and determine a rewind streaming requested time corresponding to the key press time; A first search module for checking a current time for which the rewind streaming is requested and searching for a live broadcast signal having a time corresponding to the requested time for the rewind streaming from the checked time; And First control module for controlling to sequentially stream from the searched live broadcast signal Streaming system comprising a. The method according to any one of claims 1 to 5, The rewind streaming control unit, A service providing module for providing a rewind time selection screen when a rewind streaming request is received from the user terminal; A second receiving module configured to receive a selected rewind time selection signal through the rewind time selection screen; And A second search module for checking a current time for which the rewind streaming is requested and searching for a corresponding live broadcast signal according to the rewind time selection signal based on the checked time; And A second control module for controlling to stream sequentially from the searched live broadcast signal Streaming system comprising a. In the method for streaming a live broadcast signal encoded in real time to the user terminal through a wired or wireless Internet network, (a) receiving a rewind streaming request from the user terminal; (b) searching for a buffer unit in which the encoded live broadcast signal is buffered based on the rewind streaming requested time; And (c) extracting and transmitting a live broadcast signal corresponding to the rewind streaming requested time obtained through step (b) Streaming method comprising a. The method of claim 8, In step (a), (Iii) receiving a specific key signal requesting rewind streaming; And (Ii) analyzing the specific key signal to identify a key press time and determining a rewind request time based on the key press time Streaming method comprising a. The method of claim 8, In step (a), (Iii) providing a rewind time selection screen for receiving a rewind streaming request and selecting a rewind time; And (Ii) receiving a selected rewind time selection signal through the rewind time selection screen; Streaming method comprising a. The method according to any one of claims 8 to 10, In step (b), (Iii) checking the current time; And (Ii) acquiring a live broadcast signal having a time corresponding to the rewind streaming requested time from the checked current time; Step (c) is, Streaming method characterized in that the stream is sequentially transmitted from the live broadcast signal obtained in the step (ii). In the method for streaming a live broadcast signal encoded in real time to the user terminal through a wired or wireless Internet network, (a) classifying the encoded live broadcast signal according to whether to request streaming from the user terminal; (b) The first live broadcast signal classified in step (a) is buffered in a first buffer for buffering the live broadcast signal requested by the user terminal, and the second live broadcast signal is used for delaying and buffering the encoded live broadcast signal. Buffering in a second buffer; (c) streaming the first live broadcast signal buffered in the first buffer to the user terminal; And (d) if a rewind streaming request is received from the user terminal, extracting and streaming a live broadcast signal corresponding to the rewinding request time from the second buffer; Streaming method comprising a.

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