KR20060109095A - Digital broadcast record/play device being capable of controlling time shift maintenance and control method of time shift maintenance - Google Patents

Abstract

A digital broadcasting data recording/reproducing apparatus having a TS(Time Shift) maintenance function and a method of controlling the TS maintenance function are provided to apply TS service to any section of a reproduced broadcasting program by freely setting a TS maintenance section. A digital broadcasting program recording/reproducing apparatus includes an interface, a storage unit(160), a TS processor(150), a TS maintenance processor(155), and a controller(125). The interface receives user's command data through an operating panel and transmits a TS maintenance start signal and a TS maintenance finishing signal. The storage unit stores digital broadcasting data. The TS processor records finally reproduced data in the storage unit when the digital broadcasting data is reproduced and deletes previous data corresponding to limit storage capacity. The TS maintenance processor records the currently reproduced digital broadcasting data in the storage unit without being affected by the limit storage capacity to set a TS maintenance section. The controller operates the TS maintenance processor when receiving the TS maintenance start signal and operates the TS processor when receiving the TS maintenance finishing signal.

Description

Digital broadcast record / play device being capable of controlling Time shift maintenance and control method of Time shift maintenance}

1 is a diagram illustrating, in some cases, a state in which data is recorded in a storage means as a TS function is set on a conventional digital broadcasting recording and reproducing apparatus.

2 is a block diagram schematically showing the components of a digital broadcast recording and reproducing apparatus in which TS maintenance is controlled according to an embodiment of the present invention;

3 is a diagram illustrating a shortcut key of a remote controller communicating with a key input unit according to an embodiment of the present invention.

4 is a flowchart illustrating a method of controlling a TS holding function on a digital broadcasting recording / playback apparatus according to an embodiment of the present invention.

5 is a diagram illustrating, in some cases, a state in which data is recorded in the storage means as the TS holding function is turned on / off according to an embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

100: digital broadcast recording and playback device is controlled TS maintenance

110: synchronization detection unit 115: analog signal processing unit

120: digital signal processing unit 125: control unit

130: stream control unit 135: demultiplexer

140: video / audio processing unit 145: key input unit

150: TS processing unit 155: TS holding processing unit

160: storage means 200: remote control

The present invention relates to a digital broadcast recording and reproducing apparatus and method for controlling a TS (Time Shift) function.

Recently, many products incorporating mass storage means such as HDD (Hard Disc Driver) or DVD (Digital Versatile Disc) devices into home appliances have been developed. As described above, a digital broadcast recording / playback device such as a high definition TV (HDTV) or a set-top box (STB) having a mass storage means has a tuner connected to a receiving terminal so that a user can watch a specific channel to be watched.

The digital broadcasting recording and reproducing apparatus equipped with such a mass storage means can receive and reproduce analog broadcasting and recording of digital broadcasting, as well as receive and play a signal transmitted from a satellite, and also compress a digital broadcasting or analog audio / video signal into a compressed digital signal. It can be stored in the storage means in the form of a stream or reproduced the stored signal stream.

As described above, the digital broadcasting recording and reproducing apparatus receives a broadcast through an ATSC (Advanced Television Systems Committee) broadcast channel and a NTSC (National Television Standards Committee) broadcast channel. The format of each broadcast can be converted and stored.

On the other hand, the digital broadcast recording and playback apparatus provides a variety of playback modes to facilitate the user, for example, the "TS" function.

The TS refers to a function of recording current broadcast data in a storage means to search for an important part by performing a function such as pausing a broadcast or rewinding / fast forwarding when the user is away.

In general, the storage limit capacity of the TS is set. For example, when the storage limit capacity is set to 1 hour, only data within 1 hour from the present is recorded and the data before it is deleted to secure the storage space.

That is, since the broadcasting continues, the storage space corresponding to one hour is shifted in time over the entire storage space. As the current data is stored, the data one hour ago is deleted in order.

1 is a diagram illustrating, in some cases, a state in which data is recorded in a storage means as a TS function is set on a conventional digital broadcasting recording and reproducing apparatus.

Referring to FIG. 1A, the total capacity h1 of the storage means allocated for the TS is displayed before the conventional TS function is executed (before the recording is executed) (total of 4 hours for convenience of explanation). Digital broadcasting data is not recorded at all.

(B) and (c) of FIG. 1 respectively show a recording state h2 at the time when 30 minutes have elapsed since the start of TS and a recording state h3 at the time when 1 hour has elapsed. Time), it can be seen that all of the reproduced data is recorded.

1 (d) and 1 (e) show the recording states h3 and h4 at the time when 1 hour and 30 minutes have elapsed since the start of TS, and the recording states (h3 and h5) at the time when 3 hours have elapsed, respectively. Since all of the storage limit capacity (one hour) has been exceeded, only data h3 within one hour from the present is recorded, and data h4 and h5 before that are deleted in order.

By using the conventional TS function as described above, a user may feel inconvenient because convenient TS services such as a "pause function" and a "search function" cannot be used for previous data exceeding the storage limit capacity.

That is, when watching various broadcast programs, the contents of the front of the broadcast (which has been played for a long time) are often frequently checked, and in this case, the conventional TS function is insufficient to satisfy the user.

Accordingly, the present invention provides a digital broadcast recording / playback apparatus for applying a TS service to any section of a broadcast being played by freely setting a TS holding section regardless of the set storage limit capacity in providing a TS function. It is for that purpose.

In addition, the present invention facilitates the setting / release of the TS maintenance function through a convenient interface, such as a shortcut button on the remote control, and on the digital broadcast recording and playback device to control the broadcast data to be reproduced using the maximum storage space. Another object is to provide a method for controlling the TS holding function.

In order to achieve the above object, according to the present invention, a digital broadcast recording and reproducing apparatus of which TS maintenance is controlled, comprises: an interface unit for receiving user command data through an operation panel and transmitting a TS holding start signal and a TS holding end signal; Storage means for storing digital broadcast data; A TS processing unit for recording the last reproduced data in the storage means as the digital broadcast data is reproduced, and deleting all preceding data by the storage limit based on the recorded data; A TS holding processing unit for setting the TS holding section by recording the digital broadcasting data currently reproduced in the storage means without being affected by the storage limit capacity; And a control unit to function the TS holding processing unit when the TS holding start signal is received and to function the TS processing unit when the TS holding end signal is received.

In addition, the storage limit capacity set in the digital broadcast recording and playback apparatus controlled TS maintenance according to the present invention is characterized in that it is set based on the data recording unit or data recording time.

In addition, the interface unit of the digital broadcast recording and playback apparatus controlled TS maintenance according to the present invention communicates with a remote controller to receive an operation signal, and interprets the operation signal to transmit a TS maintenance start signal or a TS maintenance end signal. Characterized in that provided as a key input unit.

In addition, the remote control of the digital broadcast recording and playback apparatus in which the TS maintenance is controlled according to the present invention is characterized in that it comprises a shortcut button unit for transmitting the operation signals corresponding to the TS maintenance start signal and TS maintenance end signal, respectively.

In addition, the remote control of the digital broadcast recording and playback apparatus controlled TS maintenance according to the present invention transmits an operation signal corresponding to the TS maintenance start signal when operated once, and corresponds to the TS maintenance end signal when operated twice. It characterized in that it comprises a shortcut button unit which is initialized after sending the operation signal.

In order to achieve the above another object, the method for controlling the TS holding function on the digital broadcast recording and playback apparatus according to the present invention comprises the steps of: starting the reproduction of the received digital broadcast data; Recording the last reproduced digital broadcast data as the TS reproducing mode is set, deleting all previous data preceded by the storage limit based on the recorded data, and maintaining reproduction; When the TS holding start signal is input, setting the TS holding section by recording the currently reproduced digital broadcasting data in the storage means without being affected by the storage limit capacity; And recording the last reproduced digital broadcast data when the TS maintenance end signal is input, deleting all previous data preceded by the storage capacity based on the recorded data, and maintaining the reproduction. It features.

In addition, when the TS holding end signal of the method for controlling the TS holding function is input on the digital broadcasting recording / playback apparatus according to the present invention, deleting all previous data and maintaining playback, the TS holding start signal. And determining whether the TS holding stop signal is input, setting the TS holding section when the TS holding start signal is input, and deleting all of the previous data before the TS holding stop signal is input, and maintaining playback. It characterized in that it further comprises the step of performing a repeating step.

Hereinafter, a method of controlling a TS holding function on a digital broadcasting recording and reproducing apparatus and a digital broadcasting recording and reproducing apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram schematically showing the components of the digital broadcast recording and playback apparatus 100 in which TS maintenance is controlled according to an embodiment of the present invention.

Referring to FIG. 2, the digital broadcast recording / playback apparatus 100 in which TS maintenance is controlled according to an embodiment of the present invention includes a synchronization detector 110, an analog signal processor 115, a digital signal processor 120, and a controller 125. , Stream control unit 130, demultiplexer 135, video / audio processor 140, key input unit 145, TS processor 150, TS hold processor 155, and storage means 160. do.

First, the synchronization detector 110 detects synchronization signals of AV signals received through the antenna 105 and transfers the AV signals separated by channels to the analog signal processor 115 and the digital signal processor 120.

The analog signal processor 115 includes an NTSC decoder (not shown), an MPEG encoder (not shown), and the like, to decode an analog AV signal. When the AV signal is recorded, the analog signal is compressed through an MPEG encoder and the controller ( It is stored in the storage means 160 through the control of 125.

The digital signal processor 120 is provided with a VSB (Vestigial Side Band) demodulator (not shown) and the like to decode the digital AV signal.

The controller 125 includes a kernel to provide an interface with each component, to process an interrupt, and to assign a request processing time and an operation order so that each component is sequentially operated. In addition, the controller 125 controls the data input / output (recording and deletion) by managing the address of the storage means 160 at the request of the TS processing unit 150 and the TS holding processing unit 155.

In addition, the stream controller 130 corrects the stream error of the digital broadcast signal transmitted from the analog signal processor 115 and the digital signal processor 120 and sequentially delivers the stream data according to the processing speed of the data. do.

The demultiplexer 135 demuxes an AV signal to classify a video signal for each channel and additional broadcast data (eg, EPG (Electric Program Guide) data, etc.) to control the controller 125 and the video / audio processor ( 140).

The video / audio processor 140 processes the image data and the audio data of the decoded MPEG data and outputs them to a screen and a speaker.

On the other hand, the control unit 125 receives the TS holding start signal and the TS holding end signal from the key input unit 145 to function the TS processing unit 150 and the TS holding processing unit 155, wherein the key input unit 145 is provided. Performs communication with the remote control 200, and interprets the operation signal received from the remote control 200 to generate a TS maintenance start signal or TS maintenance end signal.

3 is a diagram illustrating a shortcut key of the remote controller 200 communicating with the key input unit 145 according to an embodiment of the present invention.

As shown in FIG. 3, the remote controller 200 is provided with various keys, and in particular, makes the key A and the TS processing unit 150 transmit an operation signal for operating the TS holding processing unit 155. It can be seen that the key (B) for transmitting the operation signal is provided as a shortcut button.

In the embodiment of the present invention, the remote control 200 is provided with a shortcut button unit for transmitting the operation signal corresponding to the TS maintenance start signal and the TS maintenance end signal, respectively, which can be implemented as a single button.

For example, the remote controller 200 is provided with one button that is initialized after transmitting the operation signal corresponding to the TS maintenance start signal when operated once, and transmitting the operation signal corresponding to the TS maintenance termination signal when operated twice. Could be.

In addition, the interface device of the digital broadcasting recording and reproducing apparatus 100 according to the present invention consisting of a shortcut button unit and a key input unit 145 of the remote controller 200 may be implemented in other ways, for example, a user menu and It should be noted that the general method using the movement key and the selection confirmation key of the remote controller 200 may be used.

The control unit 125 transmits an operation signal when the TS holding start signal is received from the key input unit 145 to operate the TS holding processing unit 155. When the TS holding stop signal is received, the TS processing unit 150 is operated. Operate.

The TS processing unit 150 records the last reproduced data in the storage means 160 as the digital broadcasting data is reproduced, and deletes all the preceding data by the storage limit based on the recorded data. Let's do it.

The storage limit capacity may be set based on a data recording unit or a data recording time. In the embodiment of the present invention, the storage limit capacity of 1 hour is set as the time unit.

Therefore, when the "TS limit" key of the remote controller 200 is pressed and the TS processing unit 150 is operated, the user "pauses", "rewinds" and "fast forwards" the broadcast data one hour before the present. And TS functions such as "playback" can be used.

In other words, since the time is shifted as the current broadcast proceeds, only the last 1 hour of data is recorded, and the following data is deleted.

On the other hand, the TS holding processor 155 sets the TS holding section by recording the digital broadcast data currently being reproduced in the storage means 160 without being affected by the storage limit capacity.

That is, when the "TS maintenance" key of the remote controller 200 is pressed and the TS maintenance processing unit 155 is operated, the user can use the TS function in the broadcast data from the time when the "TS maintenance" key is pressed to the present. It becomes possible.

Hereinafter, a method of controlling a TS holding function on the digital broadcasting recording and reproducing apparatus 100 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

4 is a flowchart illustrating a method of controlling a TS retaining function on a digital broadcasting recording / playback apparatus 100 according to an embodiment of the present invention, and FIG. 5 is a diagram illustrating a TS retaining function according to an embodiment of the present invention. Accordingly, the state in which data is recorded in the storage means 160 is illustrated in some cases.

First, when playback of the received digital broadcast data is started and the TS playback mode is set through the key input unit 145 (S100), as described above, the TS processing unit 150 displays the last played digital broadcast data. Recording is performed, and all of the previous data that has been preceded by the storage limit capacity (1 hour amount) on the basis of the recorded data are deleted to maintain reproduction (S110).

FIG. 5 (a) shows a state in which digital broadcasting data is not recorded in the storage means 160 before the TS processor 150 functions. The storage means 160 stores four hours (H1) in total. It has capacity.

FIG. 5B shows the recording state H2 of the storage means 160 when the TS processing unit 150 functions and 30 minutes have elapsed. All of the data is recorded in the storage means 160.

At this time (30 minutes have elapsed), when the user presses the "TS maintenance" key on the remote control 200, the TS maintenance start signal is input (C) (S120), the TS maintenance processing unit 155 when 30 minutes have elapsed Continuously store the digital broadcast data reproduced without being affected by the storage limit from (S130).

FIG. 5C shows the storage means recording state H3 in the state where the TS holding processing unit 155 has been functioning for one hour, and FIG. 5D shows whether the TS holding processing unit 155 is functioning. The storage means recording state H4 is shown after two hours have elapsed.

According to FIGS. 5C and 5D, the data H2 for 30 minutes before the TS holding processing unit 155 functions is deleted on the storage means 160.

FIG. 5E shows that the TS processing unit 150 starts operation and records the storage means at this time.

Referring to (e) of FIG. 5, when a user who is watching digital broadcasting no longer senses the necessity of TS service and operates a "TS limit" key on the remote controller 200 (S140), a TS maintenance end signal is input and the TS is terminated. The TS processing unit 150 starts operation instead of the maintenance processing unit 155 (D) (S150).

As described above, the TS processing unit 150 records the last digital broadcast data reproduced and deletes all previous data preceding the storage capacity (1 hour) based on the recorded data. The data H6 one hour before the time D at which the TS processor 150 starts operation is stored, and all previously recorded data H5 are deleted.

That is, the total broadcast time at this time is 2 hours and 30 minutes, and thus data corresponding to 1 hour and 30 minutes from the beginning of the broadcast data is deleted and remains as a section in which other data can be recorded.

Thereafter, when the broadcast is in progress, the storage limit capacity of one hour is moved to the current time point, and data recorded one hour before in the recording data sequence is sequentially deleted.

Since the user can repeatedly use the TS holding function according to the present invention before the broadcast ends, the controller 125 determines whether the TS holding start signal and the TS holding end signal are input (S160). When the TS holding start signal is input, the step of setting the TS holding section (S120) and when the TS holding end signal is input, deletes all of the preceding data and maintains playback (S150). .

The present invention has been described above with reference to the preferred embodiments, which are merely examples and are not intended to limit the present invention, and those skilled in the art to which the present invention pertains do not depart from the essential characteristics of the present invention. It will be appreciated that various modifications and applications are not possible that are not illustrated above. For example, each component specifically shown in the embodiment of the present invention can be modified. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

According to the digital broadcasting recording and playback apparatus in which the TS maintenance is controlled according to the present invention, it is possible not only to execute the automatic TS function through the preset storage limit capacity but also to set the TS maintenance section by directly operating the remote controller. It is very effective to watch TV more actively.

In addition, according to the present invention, it is possible to store the broadcast data within the limit of the storage means capacity without limiting the storage limit capacity, there is an effect that can enjoy the TS service by using the storage space efficiently.

Claims (7)

An interface unit for receiving user command data through an operation panel and transmitting a TS (Time Shift) start start signal and a TS maintenance end signal; Storage means for storing digital broadcast data; A TS processing unit for recording the last reproduced data in the storage means as the digital broadcast data is reproduced, and deleting all preceding data by the storage limit based on the recorded data; A TS holding processing unit for setting the TS holding section by recording the digital broadcasting data currently reproduced in the storage means without being affected by the storage limit capacity; And And a control unit to function the TS holding processing unit when the TS holding start signal is received and to function the TS processing unit when the TS holding end signal is received. The method of claim 1, wherein the storage limit is A digital broadcast recording / playback apparatus in which TS maintenance is controlled, wherein the TS is set based on a data recording unit or a data recording time. The method of claim 2, wherein the interface unit And a key input unit configured to perform communication with a remote controller to receive an operation signal, interpret the operation signal, and transmit a TS maintenance start signal or a TS maintenance end signal. The method of claim 3, wherein the remote control And a shortcut button unit for transmitting operation signals corresponding to the TS holding start signal and the TS holding end signal, respectively. The method of claim 3, wherein the remote control When the operation is performed once, the operation signal corresponding to the TS maintenance start signal is transmitted, and when the operation is performed twice, the TS maintenance is characterized by including a shortcut button unit which is initialized after transmitting the operation signal corresponding to the TS maintenance end signal. Controlled digital broadcast recording and playback device. Starting playback of the received digital broadcast data; Recording the last reproduced digital broadcast data as the TS reproducing mode is set, deleting all previous data preceded by the storage limit based on the recorded data, and maintaining reproduction; When the TS holding start signal is input, setting the TS holding section by recording the currently reproduced digital broadcasting data in the storage means without being affected by the storage limit capacity; And Recording the last reproduced digital broadcast data, deleting all previous data preceded by the storage limit based on the recorded data, and maintaining the reproduction when the TS holding end signal is input; Controlling a TS holding function on a digital broadcasting recording / playback apparatus. The method of claim 6, wherein when the TS holding end signal is input, all of the preceding data are deleted and the reproduction is maintained. Determining whether the TS holding start signal and the TS holding end signal are input, setting the TS holding start signal when the TS holding start signal is input, and deleting all preceding data when the TS holding start signal is input. And repeatedly performing the step of maintaining the playback.

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