KR20080017692A - Method and apparatus for broadcasting data - Google Patents

Abstract

A broadcast data reproducing method and apparatus are provided to allow a user to replay a desired image while watching a broadcast by executing a highlight function, without setting a time machine function. A decoder(40) reproduces received broadcast data, and detects an event. An input changing unit(80) changes an external input mode to a tuner mode. When an event is detected, a controller(50) controls the input changing unit(80) to change the external input mode to the tuner mode to reproduce and output video and/or audio signals read from a recording medium.

Description

Method and device for playing broadcast data {Method and Apparatus for Broadcasting data}

1 is a block diagram of a broadcast data reproducing apparatus according to an embodiment of the present invention.

2 illustrates management information including an event signal detection time point and a data storage location according to an embodiment of the present invention;

3 is a flowchart illustrating a broadcast data reproduction method according to a display switching function according to an embodiment of the present invention.

4 is a flowchart illustrating a broadcast data reproduction method according to a highlight function according to an embodiment of the present invention.

※ Explanation of code for main part of drawing

10: Tuner 20: Buffer

30: storage 40: decoder

41: detector 50: microcomputer

60: memory 70: DVP system

80: input switching unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display switching method and apparatus, for example, while video and / or audio signals are played back from a recording medium such as Digital Internet Video Express (Divx) or Digital Versatile Disc (DVD). When an event is detected from the broadcast data received by the antenna and tuned by the tuner, the method of recording / playing broadcast data pauses the playback operation, reproduces and outputs the received broadcast data, or activates the highlight function. It is about.

Recently, since a large-size TV is equipped with an optical disk device such as a DivX player or a DVD player, the user can not only watch a broadcast program through the TV but also enjoy a video or music reproduced and output from a recording medium.

In addition, the TV employs a time shift function (hereinafter, referred to as a "time machine function") in which a TV program can be recorded while outputting a broadcast program and the user can play back a desired screen while watching a broadcast.

The time machine function outputs the currently received broadcast program on the screen and simultaneously records the recorded broadcast data in a data format on a recording medium such as a hard disk so as to read the recorded broadcast data and play it back at a normal speed. The user can view the desired screen again from the recorded broadcast data through trick play to play in various forms such as operation, reverse action or replay. In order to perform the above function, the TV is broadcasted. A storage medium such as a hard disk (HDD) for storing a program is essentially provided.

Referring to the operation procedure of the time machine function, broadcast signals transmitted from the outside such as terrestrial waves, cables and satellites are received and tuned by the tuner, and the broadcast signals are output through a speaker and a screen after passing through a converter such as a decoder. At this time, when the user executes the time machine function, the output broadcast signal is recorded in a storage medium such as an HDD, so that the user can search for and replay the desired screen from the recorded broadcast data when needed.

On the other hand, the remote control for controlling the TV is provided with a key button for switching the input mode, it is possible to watch a broadcast program or to watch a video or music through the button operation.

For example, if a user wants to watch a broadcast program while listening to a video or music reproduced and output from the recording medium, the playback operation of the DivX or DVD player is stopped, and the external input mode is changed to the TV mode using the remote controller. If the user wants to listen to video or music while watching a broadcast program, the TV mode can be converted to an external input mode.

However, as described above, a user who is watching a video or music reproduced and output through a DivX or DVD player watches a critical part of a current broadcast program, for example, a scene of a sporting event or a stadium of a specific player. If you want to do so, pause the playback operation of the player, it is cumbersome to check the broadcast program in the middle, it is cumbersome, and can not concentrate on the movie or music.

In addition, the currently used time machine function is operated by manual operation such as a remote control operation or button operation attached to the TV. When the user does not set the time machine function, the specific part of the broadcast program can be played again. It becomes impossible.

In addition, even when recording a broadcast screen by setting the time machine function, in order to watch a desired screen, the screen must be checked in order to search for a desired part of the recorded broadcast data, or the time information in which the screen was stored is stored in advance. There was a cumbersome problem of having to input and play back.

Accordingly, the present invention was created to solve the above problems, and when an event is detected from broadcast data received from an antenna and tuned by a tuner while watching a movie or music through a DivX or DVD player, Generates an input switching signal, pauses playback of the recording medium, causes the received broadcast data to be played back and outputs, or records the currently received broadcast program in data format, detects an event and stores the recorded broadcast data. It is an object of the present invention to provide a broadcast data reproducing method and apparatus for recording and retrieving management information, which facilitates retrieval and reproduction of a recorded broadcast signal based on the management information.

Broadcast data reproduction method for achieving the above object comprises the steps of reproducing and outputting a video and / or audio signal read from the recording medium, detecting the event in the received broadcast data, and when the event is detected And generating an input switching signal and outputting the received broadcast data.

The broadcast data reproducing method may further include detecting an event while temporarily storing received broadcast data, and when the event is detected, broadcast data temporarily stored at the time of detecting the event and management information about the event. And recording the broadcast data on the basis of the management information according to a user's request.

The management information may be stored in association with a detection point of the event and a recording position of the broadcast data.

At this time, the event may be a voice or a specific voice signal of a certain level or more, or may include a specific subtitle character.

In addition, the received broadcast signal may be temporarily stored in a buffer or an HDD, and the management information may be recorded in a memory or an HDD.

The recording may further include recording a broadcast signal for a predetermined time after the detection time of the event to a storage medium.

When the user requests reproduction of the event, the recorded broadcast data may be reproduced based on the information in the order of time when the event is recorded in management information, or in reverse order.

Alternatively, whenever the user requests the reproduction of the event, the recorded broadcast data may be reproduced based on the information in the order of the time when the event is recorded in the management information, or in the reverse order.

On the other hand, a broadcast data reproducing apparatus for achieving the above object includes a recording medium for temporarily storing the received broadcast signal data, a decoder for reproducing the received broadcast signal data, and detecting an event signal, and an external input mode. And an input switching unit for switching a tuner mode, and when the event signal is detected, switching the input switching unit from an input input mode to a tuner mode to reproduce and output a video and / or audio signal read from a recording medium, or to output the event signal. Recording the broadcast data temporarily stored on the recording medium at the time of detection of the event and management information including the time of detection of the event and the recording position of the data on another recording medium and requesting the user to reproduce the recorded broadcast signal data. In this case, the recorded broadcast signal data is read out based on the recorded management information. It characterized by comprising a controller for playback through the coder.

Hereinafter, exemplary embodiments of a method and apparatus for reproducing broadcast data according to the present invention will be described in detail with reference to the accompanying drawings.

As described above, when a user watches a movie or music through an optical disk player mounted on or connected to a TV, the user may watch an important or interesting scene such as a scoring scene of a sporting event. In the middle of the playback operation pause, and the broadcast program must check the screen individually, it was cumbersome and could not focus on the movie or music.

In addition, in the conventional time machine function, when a user watches a television broadcast without setting the time machine function, the user cannot replay the desired screen even if an important or interesting scene such as a scoring scene of a sports game is broadcast. In order to watch the desired screen even when recording the broadcast screen by setting the time machine function, it is necessary to check the screen one by one in order to search for the desired part of the recorded broadcast signal data or to remember the time information in which the screen was stored in advance. There was a problem.

According to the present invention, an important scene can be viewed even while watching a movie or music using the display switching function. When an important scene, for example, a scene containing a specific voice or a word such as a sports scoring scene, a crowd shout, a 'goal' or 'home run', is detected and immediately reproduced and output, the user plays the current scene. Immerse yourself in the movies or music you are playing.

In addition, the time shift function can be used to selectively record only important scenes and to reproduce them easily. When an important scene, for example, a scene that includes a specific voice or a word such as a scoring scene of a sport, a shout of a crowd, a 'goal' or a 'home run' is broadcasted, it is detected and applied to the broadcast data and the broadcast data including the scene. When the user requests a playback after recording the management information and recording the management information, only the highlights of the broadcast can be easily reproduced by reproducing the broadcast data recorded on the storage medium based on the management information.

1 shows a broadcast data reproducing apparatus according to the present invention, in which a tuner 10 for receiving broadcast signals transmitted from the outside such as terrestrial waves, cables and satellites, and a broadcast signal received by the tuner 10 A buffer 20 which is temporarily stored, a decoder 40 which decodes and outputs the broadcast signal, a detector 41 which detects an event such as a voice or a specific voice signal or a specific subtitle character or more at a specific level, and the broadcast signal data. Storage 30 for recording the data, a memory 60 for recording management information including an event signal detection point and a data storage location, and a VDP (Video Disc Play) system 70 for reproducing a recording medium such as a DVD. ), An input switching unit 80 for switching between an external input mode and a tuner mode, a microcomputer 50, and the like. The management information may be recorded in the storage 30 instead of the memory 60.

The tuner 10 receives and tunes broadcast signals transmitted from the outside such as terrestrial waves, cables and satellites, and the video disc play (VDP) system 70 reads and reproduces a recording medium such as Divix or DVD.

The tuned broadcast signal or the video and / or audio signal reproduced and read by the VDP system are decoded and output by the decoder 40.

In addition, the detector 41 detects an event and transmits a signal indicating the event to the microcomputer. The event 41 includes a voice, a goal, a home run, and a player having a certain level or more, such as a shout of an audience, among the broadcast signals received. Specific signals, such as a name, 'or the like.

When the user has a request through a button manipulation attached to a remote controller or a TV, or the event is detected by the detector 41 by selecting a display switching function, the micom 50 switches the input switching unit 80. Switch from external input mode to tuner mode or from tuner mode to external input mode and output it to TV screen.

Meanwhile, a method of storing broadcast signal data in a storage medium such as a buffer or a hard disk is divided into two types, buffering and recording. Buffering is broadcast of a channel being played even if the user does not recognize it. The automatic storage of signal data on a storage medium, and the recording refers to the storage of broadcast signal data desired by a user by direct or scheduled recording.

The buffer 20 is widely used as a storage medium such as RAM (RAM), and is used for the purpose of exchanging data between two devices or programs having different data processing speeds, processing units, and data use times. Not only does it allow each device or process to move properly without being congested by the other party, but it can also be useful while the components of a slow system are waiting for action. It also plays a role.

Therefore, the larger the amount of buffer memory, the higher the transmission speed. However, since the broadcast signal data is stored within a range that is not larger than a predetermined size, the old data is automatically deleted. Correspondingly, new data is stored, and the buffer 20 may use a portion of the hard disk HDD instead of RAM.

Meanwhile, the storage 30 is a storage medium for recording broadcast signal data. A storage medium such as a hard disk (HDD) is used, and the storage 30 has a characteristic of not being deleted before being erased by the user. Data can be played back and viewed regardless of time.

By the way, when a user scores a scene in a sports event or the like while watching a broadcast program without setting the time machine function, the broadcast signal data is not recorded, so the user cannot reproduce the scene as described above. .

In this case, the above problem can be solved by using the highlight function configured and operated as follows.

First, the microcomputer 50 presets a voice of a certain level or more such as a crowd shout, a specific voice signal or a specific subtitle character such as 'goal', 'home run', 'player name', etc. specified by the user as an event. The microcomputer 50 determines whether the event is detected through the detector 41, and when the event signal is detected, broadcast data previously stored in the buffer 20 is stored in the storage 30. Broadcast data, which is recorded or temporarily stored in the buffer 20, is temporarily stored for a predetermined time after an event signal detection time is recorded in the storage 30.

At this time, the broadcast data temporarily stored in the buffer 20 at the time of detection of the event is about 10 seconds before the detection time of the event, and the amount stored in the buffer depends on the user's setting. Can be adjusted accordingly.

On the other hand, if the user wants to watch the broadcast screen set and recorded again, it is necessary to search for the screen to be read and read from the broadcast data recorded in the storage 30, referring to the management information about the data shown in FIG. You can search more easily. The management information includes a record number, an event detection time point and a storage location of data, and the microcomputer 50 records the management information in the memory 60 or in the storage 30.

In addition, when a user inputs a corresponding button of the remote controller, the microcomputer 50 uses the management information to store the data in the order of the first recorded data from the first recorded data based on the detection time of the event. 30) the broadcast data recorded in 30) is read out and output to the screen, or each time a user inputs a button, the storage (in order of the first recorded data from the first detected data based on the time of detection of the event) The broadcast data recorded in 30) is reproduced and read.

When searching for broadcast data using the management information as described above, it is possible to solve the existing inconvenience of searching a specific part one by one while checking through the screen to reproduce a desired screen.

Meanwhile, the decoder 40 converts a broadcast signal output from the tuner 10 and temporarily stored in the buffer 20 and outputs it to the screen in real time or broadcast recorded in the storage 30 by a highlight function. The data is converted and output on the screen, and the microcomputer 50 reproduces the broadcast data at a normal speed according to the trick play function, or in various forms such as slow motion, fast motion, reverse motion or replay. Can be.

3 and 4, a broadcast data reproduction method according to an embodiment of the present invention will be described.

3 is a flowchart illustrating an operation of reproducing broadcast data according to the highlight function.

First, broadcast signals transmitted and received from the outside such as terrestrial waves, cables and satellites are tuned and output by the tuner 10, and the output broadcast signals are converted by the decoder 40 and output in real time.

When the user selects the highlight function, the microcomputer 50 temporarily stores the broadcast signal tuned and output from the tuner 10 in the buffer 20. Since the buffer 20 has a certain size limit, old broadcast signal data is automatically deleted, and new data is continuously stored. (S301, 302)

On the other hand, the decoder 40 is provided with a detector 41 for detecting an event such as a voice of a certain level or more, a specific voice signal or a specific subtitle character, the detector 41 is decoded by the decoder 40 An event is detected in the signal (S303).

When the event is detected by the detector 41, the microcomputer 50 records the broadcast data temporarily stored in the buffer 20 in the storage 30 at the time of detection, and detects the event time and data of the event. The management information including the storage location is recorded in the memory 60. In addition, it is also possible to record a predetermined time after the detection time according to the user's setting. (S304, 305)

When the user requests reproduction of the highlight scene, the microcomputer 50 reads management information recorded in the memory 60 and decodes the broadcast signal data recorded in the storage 30 based on the management information. To be converted and output.

At this time, when the user inputs the corresponding button on the remote controller, the data is output in the order from the first recorded data to the most recently recorded data based on the detection time of the event, or the first recorded data first. Output can be made in the order of the recorded data.

Alternatively, each time the user inputs a button, the data is output in the order of the first recorded data to the most recently recorded data based on the detection time of the event, or the first recorded data from the most recently detected data. The broadcast data recorded in the storage 30 can be read and read in the following order. (S306, 307, 308)

Meanwhile, FIG. 4 is a flowchart illustrating a method of reproducing broadcast data according to a display switching function, which may be performed separately or in parallel with the above-described highlighting function.

The broadcast signal received from the outside is tuned by the tuner 10, and the broadcast signal is decoded by the decoder 40. At the same time, according to the user's request, the VDP system 70 is reproduced and operated to read and decode the video and / or audio signals and display them on the TV screen (S401, S402).

On the other hand, when the display switching function is set by the user's request, the microcomputer 50 checks whether an event is detected by the detector 41 among the decoded broadcast signals. The event includes a voice of a certain level or more, a specific voice signal or a specific text signal (S403).

When the event is detected by the detector 41 and the detector 41 notifies the microcomputer 50 that the event has been detected, the microcomputer 50 controls the VDP system 70 to perform a playback operation. Pause (S404).

The microcomputer 50 switches the input switching unit 80 from the external input mode to the tuner mode, and outputs a broadcast signal currently received and tuned by the tuner 10 through the TV screen.

In addition, when the user requests the playback of the highlight scene after switching to the tuner mode, the microcomputer 50 may execute the highlight function about 10 based on the detection time of the event recorded in the storage 30. It is also possible to play back broadcast data including the previous amount of seconds (S405).

On the other hand, when the user finishes watching the desired broadcast scene, the user may request a reproduction operation of the optical disc device by operating a button attached to the remote controller or the TV (S406).

 When the reproduction operation is requested, the microcomputer 50 controls the DVP system 70 to execute the reproduction operation of the optical disc device (S407), and the input switching unit 13 is switched from the tuner mode to the external input mode. And outputs a video and / or audio signal reproduced and output by the optical disc apparatus through a TV.

For reference, the present invention may be applied to various video devices mounted or connected to a TV, in addition to a DVD player.

As mentioned above, preferred embodiments of the present invention described above are disclosed for the purpose of illustration, and those skilled in the art can improve other various embodiments within the spirit and technical scope of the present invention disclosed in the appended claims below. Changes, substitutions or additions will be possible.

Broadcast data reproduction method and apparatus according to the present invention for achieving the above object, by performing a display switching function, when an event such as a voice of a certain level or more, such as a crowd shout, a specific voice signal or a specific caption character is detected By automatically switching from external input mode to tuner mode, you can stop playback of DivX player or DVD player in the middle, and avoid the trouble of having to check TV broadcast program individually. You can solve the problem of missing the desired scene.

In addition, if the user executes the highlight function, even if the user watches the broadcast without setting the time machine function, the user can reproduce and view the desired screen again, and records management information including the event detection point and the storage location of the broadcast data. Based on this, the broadcast signal data signal recorded in the storage medium for each event can be reproduced and read out, and thus the existing inconvenience of having to check and search through the screen for playing a desired scene can be solved.

Claims (17)

Reproducing and outputting video and / or audio signals read out from the recording medium; Detecting an event in the received broadcast data; And when the event is detected, generating an input switching signal to output the received broadcast data. The method of claim 1, The outputting of the broadcast data may further include pausing the playback operation of the external device. The method of claim 1, The method may further include generating an input switching signal to replay the paused external device and outputting a video and / or audio signal according to a user's request. A decoder which plays back the received broadcast data and detects an event; An input switching unit for switching an external input mode and a tuner mode, And a controller for reproducing and outputting a video and / or audio signal read from a recording medium by switching the input switching unit from an input input mode to a tuner mode when the event is detected. Reproducing and outputting video and / or audio signals read out from the recording medium; Detecting an event while temporarily storing the received broadcast data; If the event is detected, recording broadcast data temporarily stored at the time of detection of the event and management information for the event; And reproducing the recorded broadcast data on the basis of the management information according to a user's request. The method of claim 5, And the management information is stored in association with a detection point of the event and a recording position of the broadcast data. The method according to claim 1 or 5, The event is a method of reproducing broadcast data, characterized in that the voice is above a certain level or a specific voice signal. The method of claim 7, wherein The event may further include a specific caption character. The method of claim 5, The received broadcast signal is temporarily stored in a buffer or HDD. The method of claim 5, And a storage medium in which the management information is recorded is a memory or an HDD. The method of claim 5, And the recording step further comprises recording the broadcast signal for a predetermined time after the detection time of the event to a storage medium. The method of claim 5, The recording step may further include generating an input switching signal and outputting the received broadcast data. The method of claim 5, And reproducing the recorded broadcast data based on the information in the order of time when the user requests the reproduction of the event in the management information. The method of claim 5, And reproducing the recorded broadcast data on the basis of the information in the reverse order of the time when the user requests the reproduction of the event. The method of claim 5, And whenever the user requests reproduction of the event, playing the recorded broadcast data on the basis of the information in the order of time when the event is recorded in management information. The method of claim 5, And whenever the user requests reproduction of the event, playing the recorded broadcast data based on the information in the reverse order of the time of recording the event in management information. A recording medium for temporarily storing the received broadcast signal data; A decoder for reproducing the received broadcast data and detecting an event; When the event signal is detected, at the time of detection of the event, broadcast data temporarily stored in the recording medium and management information including the time of detection of the event and the recording position of the data are recorded on another recording medium, and the user records the recording. And a controller for reading recorded broadcast signal data on the basis of the recorded management information and reproducing the recorded broadcast data through the decoder.

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