KR100803131B1 - Method of generating timing information, broadcast receiver, and method using timing information for searching and editing - Google Patents

Abstract

The present invention relates to a search and editing method using timing information and an apparatus therefor,

A tuner for receiving a digital broadcast stream provided through various paths and broadcast programming information of the digital broadcast; A timestamp module for inserting a timestamp into the digital stream with reference to the received broadcast listing information; A controller for converting the inserted time stamp into a system time clock (STC) to generate timing information of the broadcast stream; Provided are a broadcast receiver for generating timing information including a storage unit for storing the generated timing information, and a broadcast searching and editing method using the same. According to the present invention, there is an advantage that it is possible to easily search and edit the broadcast program by using timing information of desired broadcast data.

Timing information, recording, editing, digital broadcasting, broadcast receiver, streaming, information sharing

Description

Method of generating timing information, broadcast receiver, and method using timing information for searching and editing}

1 is a schematic internal configuration diagram of a digital broadcast receiver according to the application of the present invention.

2 is a flowchart illustrating a method of generating timing information according to an application of the present invention.

3 is a flowchart illustrating a search and editing method using timing information according to an application of the present invention.

4 is a configuration diagram of a timing information sharing system according to an application of the present invention.

5 is a state diagram showing an editing section according to the application of the present invention.

6 is an exemplary view showing a screen programming information according to the application of the present invention.

The present invention relates to a method for editing a program recorded on a mass storage device, and more particularly, to a method for editing a program recorded on a storage medium of a device such as a personal video recorder.

In general, a VCR (Video Cassette Recorder) using a tape medium has been mainstream as a device for recording analog broadcast signals.

Recently, a number of recording media have emerged in the era of digital broadcasting, which has many advantages over analog broadcasting. Examples thereof include a digital VCR, a hard disk drive (HDD), a recording device using an optical disk, and the like. In particular, the recent growth of the HDD of the HDD is increasing its recording capacity to about tens of gigabytes (Giga byte) comparable to the tape medium.

Also, as the digital broadcasting starts in earnest and the spread of digital TV receivers spreads, DTV receivers having various additional functions to meet various user demands have emerged. The PVR (Personal Video Recorder) function, which is one of the attention-added DTV add-ons, provides various playback functions using the above-mentioned large capacity HDD. In other words, unlike the conventional analog VCR tape, the PVR digitally stores audio and video information, thereby guaranteeing an image quality without loss of information even when recording and playing indefinitely.

The PVR has a function similar to that of a conventional VCR, and is stored or buffered by a program that is currently buffered (Normal Play, Fast Forward, Slow Forward, Fast Rewind, Slow Reverse). (Slow Rewind) and the like.

In addition, another function of the PVR is a time shift function that allows a user to pause a broadcast program currently being viewed and then view it again from the scene. For example, if a call is received while watching a live broadcast, pressing a button for time shift of the remote controller (for example, a pause button) causes a broadcast stream to be received later to be stored in the HDD. If you press the play button again after the call, you can watch the scene after the pause picture stored in the HDD. In other words, storage and playback are simultaneously performed at regular time intervals.

In addition, the PVR function includes scheduled recording and general recording. Unlike the existing VCR method, the scheduled recording or general recording function uses a hard disk (HDD), which is a mass storage device built into the device, so there is no inconvenience in inserting and removing a VCR tape. Rather than searching through replay, random-access is possible.

The PVR reservation recording function according to the related art may be recorded differently from the user's intention when a program is transmitted out of time specified by a broadcasting station. That is, there is a problem in that the beginning or end of the program is not recorded partially.

In order to solve the above problems, an editing function has been provided, but there is a problem in that unnecessary parts can be found only by reproducing the recorded broadcast program from the beginning to the end.

In addition, when the unnecessary broadcast stream is found, it is inconvenient to manually edit the streams.

As a method of simplifying the editing as described above, there is also an editing method using a program ID, but it cannot be applied when the program ID is the same.

In addition, some PVR systems use the scene change feature of the screen to create an index and use it to provide summary playback information. In this case, since a certain time interval is applied or automatically provided entirely in accordance with the scene change characteristic, there is a problem that the satisfaction of the summary playback desired by the actual user falls.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to insert a timestamp into a digital stream, thereby generating timing information of the broadcast program using the timestamp, and easily using the timing information. The present invention provides a method for searching or editing a broadcast.

Another object of the present invention is to provide a system in which users who receive the same broadcast can watch the broadcast efficiently by sharing the generated timing information with other users.

One feature of the broadcast receiver for generating timing information according to the present invention for achieving the above object is,

A tuner for receiving a digital broadcast stream provided through various paths and broadcast programming information of the digital broadcast; A timestamp module for inserting a timestamp into the digital stream with reference to the received broadcast listing information; A controller for converting the inserted time stamp into a system time clock (STC) to generate timing information of the broadcast stream; It is configured to include a storage unit for storing the generated timing information.

In addition, one feature of the timing information generation method according to the present invention for achieving the above object,

Receiving a digital broadcast stream provided through various paths and broadcast schedule information of the digital broadcast; Inserting a time stamp into the digital broadcast stream with reference to the received broadcast schedule information; Converting the time stamp into a system time clock (STC) to generate timing information of the broadcast stream; And storing the generated timing information.

More preferably, the broadcasting schedule information is an electronic program guide (EPG).

More preferably, the electronic program guide includes a broadcast program name, broadcast time information of each broadcast program, and broadcast channel information of each broadcast program.

More preferably, the timing information is generated including start, end, and critical section information of the broadcast stream.

More preferably, the timing information is used to search and edit the broadcast stream.

More preferably, the editing provides functionality including previewing and highlight highlight playback.

More preferably, the generated timing information is shared with other users.

More preferably, the sharing is via a wireless and / or wired connection.

In addition, one feature of the broadcast search and editing method using the timing information according to the present invention for achieving the above object,

Receiving and recording a digital broadcast stream; Receiving timing information provided from the outside through various paths; And comparing the received timing information with the system time clock (hereinafter, referred to as 'STC'), determining whether the broadcast stream matches, and searching and editing the broadcast stream.

More preferably, the recording includes scheduled recording and general recording.

More preferably, the timing information is provided using wireless and wired services.

More preferably, the timing information includes start, end, and critical section information of a broadcast stream.

More preferably, the editing provides functionality including previewing and highlight highlight playback.

Other objects, features and advantages of the present invention will become apparent from the following detailed description of the accompanying drawings.

Hereinafter, with reference to the accompanying drawings illustrating the configuration and operation of the embodiment of the present invention, the configuration and operation of the present invention shown in the drawings and described by it will be described by at least one embodiment, By the technical spirit of the present invention described above and its core configuration and operation is not limited.

In the present invention, a method of reproducing data recorded on a storage device of a PVR (hereinafter referred to as HDD) while designating only a part of the data and selectively re-recording on the HDD for a specified section is called an editing function. The use of the term can be applied to a wider variety of applications, and will not be limited to the examples given above.

1 is a schematic internal configuration diagram of a digital broadcast receiver according to an application of the present invention, and FIG. 2 is a flowchart illustrating a method of generating timing information according to an application of the present invention.

Referring to Figure 1, the digital broadcast receiver according to the application of the present invention input device 110, control device 120, PID filter 130, time stamp module 140, storage device 150, buffer 160 And a decoder 170.

When broadcast programming information is received through the tuner, the broadcast receiver user sets recording reservation information through the input device 110 with reference to the received broadcast programming information [S210, S220].

When the set reservation time arrives, the controller 120 outputs a signal for controlling the PID filter 130 to filter only the broadcast packet recorded through the input device 110 among the broadcast signals received through the tuner.

The PID filter 130 filters a broadcast packet having an audio / video PID corresponding to a program to be recorded according to a control signal of the controller 120 and transmits the broadcast packet to the time stamp module 140.

The time stamp module 140 generates and inserts a time stamp indicating a reception time to the audio / video transport packet filtered through the PID filter 130, and stores the packet with the time stamp inserted therein. Stored in [S230, S240].

In addition, the time stamp module 140 transmits the packet to the buffer 160 while maintaining the correct bit rate with reference to the time stamp when reproducing the transport packet stored in the storage device 150. This is to prevent the decoding error of the decoder 170 due to the overflow or underflow of the buffer 160, and the time stamp is removed from the transport packet being reproduced and transmitted to the buffer 160. . That is, the time stamp at the time of reproduction only refers to.

The reason why the time stamp is inserted into the transport packet to be recorded in the storage device 150 is to make the reproduction speed equal to that of the initial transmission.

When a time stamp is inserted into the transport packet, the controller 120 controls to generate timing information by converting time information of the time stamp into a system clock of a broadcast receiver [S250].

The generated timing information is stored in the storage device 150 [S270]. The timing information includes clock information such as a start, end, and critical section of a broadcast stream, and may edit and search a broadcast program using the timing information.

In addition, the timing information is also uploaded to the server to share with other users [S260]. The sharing is via a wireless, wired connection including wireless internet, website, telephone line and the like.

3 is a flowchart illustrating a search and editing method using timing information according to an application of the present invention.

First, the broadcast receiver receives and records a broadcast stream in which the above-described timing information is inserted [S310, S320].

When the broadcast is recorded, it is determined whether the timing information of the broadcast stream received in step S310 and the system time clock of the broadcast receiver that received the inserted broadcast stream match the timing information, and the timing If the information matches the system clock of the broadcast receiver recording the broadcast stream, the broadcast stream is edited and searched using the timing information [S330, S340].

4 is a configuration diagram of a timing information sharing system according to an application of the present invention.

First, when a broadcaster transmits broadcast schedule information, user A receives the broadcast schedule information and sets a reservation recording of a desired broadcast program with reference to the received broadcast schedule information [S410, S420].

When the preset time is set, the broadcast packet transmitted from the broadcasting station is received and recorded [S430, S440]. In the recording, a timestamp indicating a current time is inserted into the broadcast packet.

The time stamp is converted into a system clock of a broadcast receiver to generate timing information, and is provided to a service provider providing a shared channel [S450, S460].

The service provider may provide a channel for sharing the timing information, may be downloaded directly by users through the channel, or the timing information may be transmitted in real time by the service provider [S480]. The transmission is possible through a wired / wireless connection, and the wireless connection may be implemented using a wireless internet including infrared communication and Bluetooth communication.

Another user (user B) who has received the timing information from the service provider uses the timing information to search or edit the recorded broadcast [S490].

5 is a state diagram showing an editing section according to the application of the present invention.

In the present invention, when the recorded program stored in the HDD as shown in Figure 5 (a), a progress bar (Progress Bar) is displayed on a portion of the bottom.

The progress bar indicates the location currently viewed by the user among all the recorded programs. In FIG. 5 (a), totalDuration is the total playback time of the recorded program, and the current time indicates the time for the location currently viewed by the user. These values are placed around the progress bar up, down, left, and right to help the user understand.

Fig. 5 (b) shows the display state of the progress bar when the user designates two editing sections during playback of the recorded program.

The two edit sections shown in FIG. 5 (b) record the start and end points with two values, editedStart Time and editEnd Time. The editedStart Time 11 indicates the start time of the first edit section, and the editEnd Time 12 indicates the end time of the first edit section. The editedStart Time 21 indicates the start time of the second edit section, and the editEnd Time 22 indicates the end time of the second edit section.

The start and end points are designated by user input and use operations such as play, fast play and reverse play.

6 is an exemplary view showing a screen program information according to the application of the present invention.

The user intends to make a reservation recording of the program 'Lee Hong Ryeol Hong Eun-Hee's Only' which is broadcast on the MBC channel by using the broadcasting program information as shown in FIG.

At this time, assuming that the user recorded from 9:20 to 10:40, the recorded data may include an advertisement or another program that the user does not want. In addition, when a program is transmitted inconsistent with the time specified by the broadcast station circumstances, the recording is performed differently from what the user intended.

In such a case, automatic editing and searching may be performed using timing information of a desired broadcast.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

As described above, the searching and editing method using the timing information according to the present invention has the effect of automating the broadcasting stream searching and editing by using the timing information of the broadcasting stream.

In addition, the present invention has the effect of improving the broadcast receiver operating environment and the user's convenience by receiving the search and edit information from the outside by sharing the timing information.

Claims (21)

A tuner for receiving a broadcast stream and broadcast schedule information on the broadcast stream; A timestamp module for inserting a timestamp into the broadcast stream with reference to the received broadcast schedule information; A control unit for converting the inserted time stamp into a system time clock (STC) to generate timing information of the broadcast stream; And a storage unit for storing the generated timing information. The broadcast receiver as claimed in claim 1, wherein the broadcast schedule information is an electronic program guide (EPG). The broadcast receiver as claimed in claim 2, wherein the electronic program guide includes a broadcast program name, broadcast time information of each broadcast program, and broadcast channel information of each broadcast program. The broadcast receiver as claimed in claim 1, wherein the controller generates timing information including start, end, and critical section information of the broadcast stream. The broadcast receiver as claimed in claim 4, wherein the control unit searches for and edits the broadcast stream using timing information included in the broadcast stream. The broadcast receiver as claimed in claim 5, wherein the broadcast receiver refers to at least one of a preview and a highlight image included in the broadcast stream when editing by the broadcast receiver. The broadcast receiver as claimed in claim 1, wherein the broadcast receiver transmits a broadcast stream into which the timing information is inserted to a network. The broadcast receiver as claimed in claim 7, wherein the network is formed through at least one of wireless and wired lines. Receiving a broadcast stream provided through various paths and broadcast schedule information of the broadcast stream; Inserting a time stamp into the broadcast stream with reference to the received broadcast schedule information; Converting the time stamp into a system time clock to generate timing information of the broadcast stream; And storing the generated timing information. 10. The method of claim 9, wherein the broadcast scheduling information is an electronic program guide (EPG). The method of claim 10, wherein the electronic program guide includes a broadcast program name, broadcast time information of each broadcast program, and broadcast channel information of each broadcast program. 10. The method of claim 9, wherein the timing information is generated according to start, end, and critical section information of the broadcast stream. 10. The method of claim 9, wherein the timing information generating method further comprises searching for and editing the broadcast stream using timing information included in the broadcast stream. The method of claim 13, wherein the editing is performed by referring to at least one of a preview and a highlight image included in the broadcast stream. 10. The method of claim 9, wherein the timing information generating method further comprises transmitting the broadcast stream into which the timing information is inserted to a network. 16. The method of claim 15, wherein the network is through at least one of wireless and wired. Receiving and recording a digital broadcast stream through a network; Obtaining timing information inserted into the recorded broadcast stream; Comparing the obtained timing information with a system time clock (hereinafter, referred to as 'STC') of a receiver that receives the broadcast stream, and searching and editing the recorded broadcast stream when the timing information matches the system clock. Broadcast searching and editing method using timing information, characterized in that it comprises a step. delete delete 18. The method of claim 17, wherein the timing information is inserted into start, end, and critical section information of the broadcast stream. 18. The method of claim 17, wherein the editing is performed by referring to at least one information of a preview and a highlight image included in the broadcast stream.

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