KR20070023464A - Virtual personal video recorder service system and method thereof - Google Patents

Abstract

Disclosed are a virtual PVR service system and a method for providing a PVR service to a terminal having a low memory capacity such as a mobile terminal. Accordingly, the mobile terminal instructs the virtual PVR server to record the recording instruction for the specific broadcast content; Requesting, by the mobile terminal, a streaming server for a PVR service for a specific broadcast content; Checking, by the streaming server, at the virtual PVR server whether the broadcast content is recorded by the mobile terminal; And if the result of the check is recorded, providing the virtual PVR service method comprising the streaming server transmitting the corresponding broadcast content to the mobile terminal, thereby providing the PVR service to the mobile terminal having insufficient memory space.

PVR, Streaming, Content, Broadcast Replay

Description

VIRTUAL PERSONAL VIDEO RECORDER SERVICE SYSTEM AND METHOD THEREOF

1 is a block diagram showing a virtual PVR service system according to a preferred embodiment of the present invention.

2 is a flowchart showing the operation of the virtual PVR server according to the preferred embodiment of the present invention.

3 is a flowchart illustrating a virtual PVR additional service method according to an exemplary embodiment of the present invention.

4 is a view for explaining a virtual PVR service method according to an embodiment of the present invention.

* Explanation of Codes on Major Parts of Drawings *

100: mobile terminal

200: virtual PVR server

250: Custom Information DB

300: streaming server

350: content storage device

400: multimedia center

The present invention relates to a personal video recorder (PVR) service method, and more particularly, to a virtual PVR service system and a method for providing a PVR service to a terminal having a small memory capacity such as a mobile terminal.

PVR (Personal Video Recorder) is a device that can digitally store broadcast programs or related contents (broadcast data, text, photos, etc.) and play them at any time without deterioration in image quality. As a medium for storing the program or content, a hard disk drive (HDD) is mainly used.

Current PVRs are being integrated with high definition (HD) set-top boxes rather than being used independently. Therefore, it is possible to freely record and reproduce the digital broadcast currently being broadcast.

Meanwhile, the mobile multimedia broadcasting (DMB) service enables subscribers to watch or listen to various multimedia broadcasts such as video, audio, and data through multi-channels through a personal portable or vehicle receiving terminal equipped with an omnidirectional receiving antenna outdoors or on the go. Speak broadcast service.

By digitizing the previous analog broadcasting form, the service provides high quality CD level sound quality, various data services, two-way interactivity, excellent mobile reception quality, etc., and expanded the broadcasting to see, hear, and participate in the concept of watching and listening broadcasting. Through data broadcasting, various multimedia information such as news, traffic information, weather information, geographic location information, and video information can be transmitted in text and graphics.

However, as described above, although various multimedia contents are provided to the wired / wireless terminal through the wired / wireless network, the storage capacity of the general mobile terminal is limited, and thus various multimedia contents desired by the user cannot be stored sufficiently. Accordingly, the mobile terminal may not only use the VOD service to view broadcasts that have already passed, but also may not be able to see them quickly when they are not desired.

Accordingly, an object of the present invention is to provide a virtual PVR service system and method for providing a PVR service to a mobile terminal.

Another object of the present invention is to provide a virtual PVR service system and a method for providing an additional service according to the subscriber's preferences along with a PVR service in a mobile terminal.

In order to achieve the above object, a virtual PVR (Personal Video Recorder) service system according to an embodiment of the present invention, the mobile terminal for receiving and displaying the broadcast content on the screen; A virtual PVR server for storing PVR information on broadcast content received from the mobile terminal for a recording request or a recording termination request; And when receiving the PVR information and the broadcast content transmission request corresponding to the PVR information from the mobile terminal, if the recording is performed after the virtual PVR server checks whether the broadcast content corresponding to the PVR information has been recorded by the mobile terminal. It characterized in that it comprises a streaming server for transmitting the broadcast content to the mobile terminal.

Here, the PVR information may include broadcast channel information and broadcast time information.

In addition, the streaming server, characterized in that for transmitting the broadcast content to the mobile terminal in a streaming or pseudo-streaming (pseudo-streaming) method.

When the virtual PVR server receives an additional service request from the mobile terminal, the virtual PVR server configures menu information for the additional service based on previously stored PVR information, transmits the menu information to the mobile terminal, and selects a menu item selected from the mobile terminal. When receiving, characterized in that for providing an additional service according to the selected menu item to the mobile terminal.

On the other hand, the virtual PVR service method according to an embodiment of the present invention, (a) the mobile terminal instructing the virtual PVR server to record the recording for a specific broadcast content; (b) the mobile terminal requesting a streaming server for a PVR service for a specific broadcast content; (c) checking, by the virtual server, whether the streaming content is recorded by the mobile terminal by the streaming server; And (d) transmitting the broadcast content to the mobile terminal by the streaming server if it is recorded as a result of the checking.

Here, the PVR service is characterized in that it is at least one of fast forward (F / F), rewind (R / W), or pause (Pause).

In addition, the virtual PVR (Personal Video Recorder) service method according to another embodiment of the present invention, the method comprising the steps of: (a) the mobile terminal instructs the virtual PVR server to record the recording for a specific broadcast content; (b) requesting, by the mobile terminal, a virtual PVR server for a PVR supplementary service for a specific broadcast content; (c) configuring, by the virtual PVR server, menu information for the additional service based on previously stored PVR information and transmitting the menu information to the mobile terminal; And (d) if the virtual PVR server receives the selected menu item from the mobile terminal, providing the PVR additional service according to the selected menu item to the mobile terminal.

The PVR supplementary service may include a recommendation service for a specific content and / or a product information service associated with the viewing symbol by analyzing the broadcasting content viewing symbol of the mobile terminal subscriber.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments. Like reference numerals refer to like or similar elements throughout the drawings.

1 is a block diagram showing a virtual PVR service system according to a preferred embodiment of the present invention.

As shown in FIG. 1, the system includes a mobile terminal 100; A virtual PVR (Personal Video Recorder) server 200; A user-specified information DB 250 embedded in or independently connected to the virtual PVR server 200; Streaming server 300; A content storage device 350 embedded in the streaming server 300 or independently connected to store broadcast content for each channel / time; And a multimedia center 400 transmitting the broadcast content to the mobile terminal 100 through a broadcasting network or a VOD service.

The mobile terminal 100 receives the broadcast content transmitted from the multimedia center 400 and displays it on the screen. In addition, the mobile terminal 100 transmits the time information and the channel information on the specific broadcast content to the streaming server 300 to receive the corresponding broadcast content in a streaming or pseudo-streaming manner and display it on the screen. That is, when the mobile terminal 100 transmits a recording start command to the virtual PVR server 200 to start the virtual PVR service, the mobile terminal 100 connects the RTSP connection with the streaming server 300 and interprets the information indicated by the user. A playback request is made to the streaming server 300 based on the requested channel and time information. Accordingly, when the mobile terminal 100 receives the requested broadcast content from the streaming server 300, the mobile terminal 100 stops displaying the broadcast content received from the multimedia center 400 and broadcast content from the streaming server 300. Is displayed. Based on the above-described method, the mobile terminal 100 can play back 5 minutes after the currently displayed broadcast content. If the current broadcast content is commercial, the broadcast content after skipping all the current commercials is displayed. Can be displayed on

Meanwhile, the RTSP connection between the mobile terminal 100 and the streaming server 300 may be connected when the streaming server 300 first queries the virtual PVR server 200 and then receives a response thereto. In some cases, the mobile terminal 100 connects to the virtual PVR server 200 with the RTSP, sends and receives recording start and playback commands, and performs RTP / RTCP connection only with the streaming server 300 at the time of playback. You may.

The multimedia center 400 transmits various broadcast contents to the mobile terminal 100 through a broadcasting network or a VOD service, and the broadcasting contents are transmitted to the content storage device 350 in real time. For example, the multimedia center 400 may be, for example, a portal server or a broadcasting center capable of transmitting broadcast content. Such broadcast content is stored in a wired terminal having a large memory device internally / externally to provide a general PVR service. However, since the memory capacity of the mobile terminal 100 is not enough to store the broadcast content, the virtual PVR service provided by the present invention includes the virtual PVR server 200 and the streaming server 300 so that the mobile terminal ( The PVR service may be provided to various wired / wireless terminals having a small memory device such as 100).

The streaming server 300 reads the corresponding broadcast content from the content storage device 350 based on the channel information and the time information requested from the mobile terminal 100, and then streams it to the mobile terminal 100 through a wired / wireless internet network. That is, the streaming server 300 moves through the wired / wireless Internet the broadcast content specified by the time information and the channel information in association with the virtual PVR server 200 based on the time information and the channel information transmitted from the mobile terminal 100. Transmission to the terminal 100. In this case, when there is no content to be played back in the content storage device 350 (if data is requested at the time of broadcasting), the mobile terminal 100 notifies this. Accordingly, the mobile terminal 100 displays the broadcast content provided from the multimedia center 400 on the screen.

The content storage device 350 stores broadcast content broadcasted or broadcasted by the multimedia center 400, and provides the corresponding broadcast content to the streaming server 300 when a specific broadcast content is requested from the mobile terminal 100.

The virtual PVR server 200 stores channel information and time information on broadcast content received from the user of the mobile terminal 100. The recording / recording end information for each mobile terminal 100 stored as described above is used as response information for the broadcast content streaming possible query of the streaming server 300. In addition, the virtual PVR server 200 configures the broadcast content information according to the channel and program preferences of the mobile terminal 100 in a separate menu such as a WAP and provides it to the mobile terminal 100.

In addition, the user-specified information DB 250 stores recording / end time information and corresponding channel information from the mobile terminal 100 for each mobile terminal ID.

Hereinafter, a virtual PVR service method according to an exemplary embodiment of the present invention will be described in detail with reference to FIG. 2. Here, all the broadcast content is stored in the content storage device 350, and according to the virtual PVR service policy, the user of the mobile terminal 100 may be provided with the virtual PVR service without recording instruction.

First, the mobile terminal 100 receives and displays broadcast content transmitted from the multimedia center 400 (S210).

Subsequently, the mobile terminal 100 transmits the recording instruction at the specific time input from the user to the virtual PVR server 200 including channel information and time information (S220). At this time, the mobile terminal 100 is connected to the streaming server 300 and the RTSP.

The virtual PVR server 200 accumulates / stores the mobile terminal ID, channel information, and time information (hereinafter, PVR information) according to the recording instruction in the user designated information DB 250 (S230). At this time, the PVR information is accumulated / stored in the user designated information DB 250 for each mobile terminal ID.

Subsequently, the mobile terminal 100 requests the PVR service such as a broadcast replay (R / W) or fast forward (F / W), etc. during the viewing of the broadcast content from the multimedia center 400 to the streaming server 300. (S240). Here, step 240 is performed simultaneously with step 220. Then, the streaming server 300 queries the virtual PVR server 200 about whether to record the broadcast content requested by the mobile terminal 100 and receives a response thereto (S250).

If the response is recorded (in this case, charging or authentication may be performed in conjunction with the virtual PVR server 200 may be performed), the streaming server 300 broadcasts the broadcast content according to the requested channel information and time information. Read from the content storage device 350 and transmits to the mobile terminal 100 in a streaming, pseudo-streaming method (S260-S270).

Then, the mobile terminal 100 terminates the broadcast content from the multimedia center 400 currently being displayed and displays the broadcast content from the streaming server 300 (S280).

Meanwhile, the RTSP connection between the mobile terminal 100 and the streaming server 300 is connected when the streaming server 300 queries the virtual PVR server 200 for the first time (step 250) and receives a response thereto. In some cases, the mobile terminal 100 connects the RTSP with the virtual PVR server 200 and then sends and receives a recording start and playback command through the RTSP server 200, and the RTP / You can also make an RTCP connection.

In addition, a virtual PVR service method according to another embodiment of the present invention will be described in detail with reference to FIG. 3. In this case, the virtual PVR server 200 performs the operation as shown in FIG. 2 and at the same time, when the mobile terminal 100 requests, the virtual PVR additional service as described below is added to the mobile terminal (2). 100) can be provided.

That is, the virtual PVR server 200 receives channel information and time information together with a recording instruction at a specific time point from the mobile terminal 100 (S310).

Then, the virtual PVR server 200 accumulates / stores channel information and time information (hereinafter, PVR information) according to the recording instruction in the user designated information DB 250 (S320). At this time, the PVR information is accumulated / stored for each mobile terminal ID. The virtual PVR server 200 analyzes the recording instruction and / or broadcast content playback contents stored for each mobile terminal ID, and when the streaming server 300 queries the virtual PVR server for authentication or the like (ie, Step 250) The analyzed content is stored in the user-specified information DB 250.

Subsequently, when the virtual PVR server 200 receives the additional service request from the mobile terminal 100, after configuring the menu information for the additional service based on the designated time information and channel information, the virtual PVR server 200 moves to the mobile terminal 100. It transmits (S330-S340). In this case, the menu information may include recommendation of content by analyzing broadcasting content viewing preferences of the mobile terminal 100 or include additional service product information (eg, ringback tone service, ringing tone, etc.) related to the viewing preference. Then, the virtual PVR server 200 receives the selected menu item from the mobile terminal 100, and instructs the interworking server (eg, CRBT server for ringback tone service) to provide the additional service according to the selected menu item based on the selected menu item. (S350).

4 is a diagram illustrating a virtual PVR service according to an exemplary embodiment of the present invention, in which the contents of a broadcast content of the multimedia center 400, the contents of a broadcast content played by the mobile terminal 100, and the contents storage device 350 are described. It shows the relationship between the stored broadcast content contents.

First, when a user requests to start recording while receiving broadcast content through the mobile terminal 100 (T = 0 minutes), the mobile terminal 100 displays the broadcast content currently being received from the multimedia center 400, and the contents The storage device 350 starts to store the broadcast content that is currently being broadcast (regardless of the user's start of recording the broadcast content, the time information and channel information for the recording start request are transmitted to the command of the virtual PVR server 200. Is recorded in the user-specified information DB 250 for each mobile terminal ID).

Subsequently, after about 10 minutes, if the user receives a broadcast replay (R / W 5 minutes) from the user through the mobile terminal 100 (T = 10), the RTSP is based on the corresponding mobile terminal ID, channel information, and time information. Request to the streaming server 300 through the session.

Then, the streaming server 300 reads the broadcast content corresponding to the channel information and time information (broadcast content that was broadcast 5 minutes ago) from the content storage device 350 and transmits it to the mobile terminal 100 through the wired or wireless Internet. .

At this time, the mobile terminal 100 terminates the display of the broadcast content from the multimedia center and reproduces the broadcast content from the streaming server 300.

In addition, if a request for fast forwarding of the broadcast (F / F 2.5 minutes) is requested through the mobile terminal 100 (T = 20), the broadcast content after 2.5 minutes with respect to the broadcast content currently being viewed in the same process as described above. Display the contents on the screen. For example, the user can skip the case of a commercial through the fast forward view.

In addition, if a request for fast viewing of the broadcast (F / F 2.5 minutes or more) is requested through the mobile terminal 100 (T = 30), the same process as described above for more than 2.5 minutes of the broadcast content currently being watched again. After that, the contents of the broadcasting contents are displayed on the screen. However, when the broadcast content is not stored (that is, a time longer than the broadcast content currently being broadcast), the mobile terminal 100 notifies this fact and transmits the broadcast content currently being broadcast.

Finally, when the broadcast recording stop request through the mobile terminal 100 (T = 40), the broadcast content stored in the content storage device 350 is stopped (that is, stored regardless of the end of the broadcast content recording of the user, The time recording of the recording end request is recorded in the user-specified information DB 250 by the command of the virtual PVR server 200).

While the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will recognize that various modifications or changes can be made without departing from the spirit and scope of the invention.

As described above, according to the present invention, it is possible to provide a PVR service to a wired / wireless terminal having insufficient memory space.

In addition, according to the present invention, since the PVR service is provided based on the contents of all the broadcast contents, there is a certain effect of using the disk regardless of the number of users as compared to the method of separately storing the recording information of each user. According to the present invention, there is an effect of providing an additional service according to the taste of the terminal user together with the PVR service to the wired / wireless terminal having insufficient memory space.

Claims (21)

In the virtual PVR (Personal Video Recorder) service system, A mobile terminal for receiving broadcast content and displaying the same on a screen; A virtual PVR server for storing PVR information on broadcast content received from the mobile terminal for a recording request or a recording termination request; And When the PVR information and the broadcast content transmission request corresponding to the PVR information are received from the mobile terminal, it is checked whether the broadcast content corresponding to the PVR information is recorded by the mobile terminal. And a streaming server for transmitting contents to the mobile terminal. The method of claim 1, wherein the PVR information, Virtual PVR service system comprising broadcast channel information and broadcast time information. The method of claim 1 or 2, wherein the streaming server, And a content storage device for receiving the received content from the multimedia center for each time / channel and transmitting the requested broadcast content from the streaming server. The method of claim 1 or 2, wherein the streaming server, And transmitting the broadcast content to the mobile terminal through a wired or wireless internet. The method of claim 1 or 2, wherein the streaming server, And transmitting the broadcast content to the mobile terminal in a streaming or pseudo-streaming manner. The method according to claim 1 or 2, The mobile terminal and the streaming server is a virtual PVR service system, characterized in that connected via a Real Time Streaming Protocol (RTSP) session. The method of claim 1 or 2, wherein the virtual PVR server When receiving the additional service request from the mobile terminal, after configuring the menu information for the additional service based on the pre-stored PVR information, and transmits to the mobile terminal, and receives the selected menu item from the mobile terminal, the selected menu item Virtual PVR service system, characterized in that for providing an additional service according to the mobile terminal. The method of claim 7, wherein the menu information, And analyzing the broadcast content viewing symbol of the mobile terminal subscriber to include recommendation information for specific content and / or additional service product information related to the viewing symbol. The method of claim 7, wherein the menu information, After analyzing the recording instruction and / or content playback content stored by the mobile terminal ID, characterized in that the content stored in the user-specified information DB when the streaming server queries the virtual PVR server for authentication, etc. Virtual PVR Service System. In the virtual PVR (Personal Video Recorder) service method, (a) the mobile terminal instructing the virtual PVR server to record a recording for a specific broadcast content; (b) the mobile terminal requesting a streaming server for a PVR service for a specific broadcast content; (c) checking, at the virtual PVR server, whether the streaming server can provide the requested broadcast content; and (d) if the result of the check is recorded, transmitting the broadcast content to the mobile terminal by the streaming server. The method of claim 10, wherein the PVR service, At least one of fast forward view (F / F), rewind (R / W), play or pause. According to claim 10 or 11, wherein step (a), And accumulating and storing, by the virtual PVR server, time information and channel information of the broadcast content for each mobile terminal ID for which the recording request is made. The method of claim 10 or 11, wherein step (b) comprises: And transmitting time information and channel information of a specific broadcasting section of the broadcasting content together. The method according to claim 10 or 11, wherein Before the step (a), the mobile terminal and the streaming server, the virtual PVR service method characterized in that for performing the RTP / RTSP connection for transmission of broadcast content. The method according to claim 10 or 11, wherein Simultaneously with step (a), the mobile terminal and the streaming server perform an RTP / RTSP connection for transmission of broadcast content. The method according to claim 10 or 11, wherein Simultaneously with the step (c), the mobile terminal and the streaming server perform a RTP / RTSP connection for transmitting broadcast content. According to claim 10 or 11, wherein step (d), And transmitting the specified broadcast content to the mobile terminal in a streaming or pseudo-streaming manner. In the virtual PVR (Personal Video Recorder) service method, (a) the mobile terminal instructing the virtual PVR server to record a recording for a specific broadcast content; (b) requesting, by the mobile terminal, a virtual PVR server for a PVR supplementary service for a specific broadcast content; (c) configuring, by the virtual PVR server, menu information for the additional service based on previously stored PVR information and transmitting the menu information to the mobile terminal; And (d) if the virtual PVR server receives the selected menu item from the mobile terminal, providing a PVR additional service according to the selected menu item to the mobile terminal. The method of claim 18, wherein the PVR additional service, And a recommendation service for a specific content and / or a product information service associated with the viewing symbol by analyzing the broadcasting content viewing symbol of the subscriber of the mobile terminal. The method of claim 18 or 19, wherein the viewing symbol is, And a recording instruction and / or broadcast content playback content stored for each mobile terminal ID. The method of claim 18 or 19, wherein the PVR information, Virtual PVR service system comprising broadcast channel information and broadcast time information.

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