KR20000034372A - How to Run Reserve Mode on Digital TV - Google Patents

Abstract

The present invention relates to a method for executing a reservation mode of a digital television. The present invention is configured to execute a reservation mode of standard time information and program guide information included in a digital broadcast signal. In particular, a user searches for a preferred program selected when a reservation environment is set. According to the condition, the user can search for the desired program from the program guide information and broadcast the searched favorite program at the volume set by the user. There is an effect that can improve the alarm function that has.

Description

How to Run Reserve Mode on Digital TV

The present invention relates to a method of executing a reservation mode of a digital television, and more particularly, a method of executing a reservation mode of a digital television that selects a program set by a user and performs a reservation mode in a broadcasting environment set by a user. It is about.

In general, a digital television system compresses and transmits digital video and audio data by using a predetermined compression algorithm, for example, a hybrid encoding algorithm, and restores the video and audio data, which are compressed and transmitted, to the original data to serve a viewer. Thus, the information provided in such a digital television system can be roughly divided into program information, data information, and control information.

In a digital TV system, program information, data information, and control information are formed into a predetermined packet stream, for example, a packet stream in units of 188 bytes, and then carried on a carrier wave.

Program information, for example, represents TV programs provided by each broadcaster for the purpose of being broadcast to subscribers, and includes video information, user information such as caption data, and audio information.

The data information includes information defined according to the service provider, for example, electronic newspaper service information, magazine service information, karaoke service information, and the like.

Control information is a program such as program ID, channel ID, program name, caption service presence, program class, current time information, etc. necessary for demultiplexing and reconfiguring program information or data information of a selected channel from a packet stream carried on a carrier channel. It contains guide information and is generally written in PMT (Program Map Table).

Therefore, on the receiving side of the digital television, based on the control information included in the packet stream, the program of the selected channel is automatically tuned to the carrier including the carrier, and then only the program information of the channel selected from the multiplexed and transmitted packet stream is demultiplexed. By reconstructing, the program information is provided to the viewer.

In this way, the digital television system provides not only broadcast program information but also various additional services not provided by the existing broadcast system, an electronic newspaper service, a magazine service, and a karaoke service, thereby expanding the information selection range of the viewer. There is an advantage.

Meanwhile, in the conventional general television system, a reservation mode is performed by using a timer provided in the television itself. When a regular power supply for operation of the timer is temporarily cut off, an error occurs at the current time measured by the timer. As a result, a problem occurs that the reservation mode set by the user is not executed correctly.

In addition, in the conventional television system, since the reserved mode is performed by the usage environment that was watched before the TV was turned off, if the volume is set low in the broadcast environment that was previously watched, the volume broadcasted by the reserved mode may also be Since it is set low, there was a problem that does not fully utilize the alarm function of the reservation mode.

In the conventional television system, the reservation mode is set only by the channel and the time. When the repeating reservation mode in which the reservation mode is executed at the same time every day is performed, the broadcast program of the same channel is always performed. After that there was a hassle to select the desired broadcast program again.

On the other hand, since the packet stream of digital television includes standard time information and program guide information, such information can improve various and convenient problems of the reservation mode provided in conventional television as described above. There will be.

The present invention has been made in view of the foregoing, and an object of the present invention is to provide a broadcast environment in which a user sets a preferred program of a user using a digital broadcast signal, that is, standard time information and program guide information included in a packet stream. It is to provide a reservation mode failure method of digital TV which can be implemented in.

In order to achieve the above object, in the present invention, a reservation mode of a digital television system for broadcasting a preferred program desired by a user at a time set by a user using program guide information and standard time information included in the digital broadcast signal. An execution method comprising: setting a reservation environment including a reservation time at which the preferred program is to be broadcast, a search condition of the preferred program, and a reservation volume to broadcast the preferred program; Determining whether a current time reaches the reserved time with reference to the standard time information in the power-off state of the digital television; Searching for a channel on which a preferred program corresponding to the preferred program search condition is broadcasted from the program guide information when a current time referring to the standard time information reaches the reservation time; A method of executing a reservation mode of a digital television, the method comprising: tuning the channel to broadcast the preferred program, but broadcasting the volume at a volume level corresponding to the reserved volume.

1 is a block diagram of a digital television system suitable for implementing a reservation mode execution method of digital television according to the present invention;

2 is a detailed flowchart showing a method of executing a reservation mode of a digital television according to the present invention;

3 is an exemplary view showing a reservation mode setting screen according to a preferred embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

100: user operation block 200: system control block

300: menu generation block 400: tuner and demodulation block

500: MPEG decoder 600: video signal processing block

700: image synthesis block 800: audio signal processing block

900: data storage block

Hereinafter, a method of executing a reservation mode of a digital television according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

1 is a block diagram of a digital television system suitable for implementing a reservation mode execution method for digital television according to the present invention, and FIG. 2 is a detailed flowchart illustrating a reservation mode execution method for digital television according to the present invention. 3 is an exemplary diagram showing a reservation mode setting screen according to a preferred embodiment of the present invention.

First, referring to FIG. 1, hardware suitable for implementing the reservation mode execution method of digital television according to the present invention includes a user operation block 100, a system control block 200, a menu generation block 300, a tuner, Demodulation block 400, MPEG decoder 500, video signal processing block 600, video synthesis block 700, audio signal processing block 800, data storage block 900, the individual configuration and function Is as follows.

The user operation block 100 is composed of a key panel provided in a digital television system or a remote control for the digital television, and the key panel and the remote controller are for example a power on / off key, a reservation key, a reservation environment. And a key including a plurality of numbers or direction keys for setting, generating a key signal corresponding to a user's key operation, and providing the generated key signal to the system control block 200.

The system control block 200 controls the overall digital television system based on a key signal provided from the user operation block 100 or a signal provided to each component member of the digital television system.

In particular, the program guide information provided from the MPEG decoder 500 and the preferred program search condition set by the user are stored in the data storage block 900, and then the standard time information provided from the tuner and the demodulation block 400 is referred to. When the standard time reaches the preset time set by the user, the user searches for the preferred program set by the user from the stored program guide information, and controls the overall digital television system to broadcast the searched program. In this case, the preferred program search condition may be, for example, a program type such as a movie, sports, music, etc., and a program field (eg, comic, action, erotic, etc.) for each program type thereof.

In addition, the system control block 200 controls the voice signal processing block 800 to be broadcasted at a volume set by a user when performing a broadcast in a reserved mode.

The menu generation block 300 configures predetermined information provided from the system control block 200 into menu screens (program guide screens, channel selection screens, etc.) based on a plurality of preset menu screen configuration information, and the configured menu screens. Data for the video and audio signal processing block 600 is provided. In particular, in the present invention, the data for the reservation mode setting screen is provided from the system control block 200, and the received data is configured as the reservation mode setting screen and provided to the image composition block 700.

The tuner and demodulation block 400 receives a digital broadcast signal provided from a terrestrial relay station or a satellite by tuning control of the system control block 200, converts the digital broadcast signal to an intermediate frequency, and then converts the converted intermediate signal. The frequency is demodulated into a bit stream through demodulation and error correction. Then, standard time information, program guide information, and the like are extracted from the demodulated bit stream and provided to the system control block 200, while program information of a predetermined channel selected by the control of the system control block 200, that is, audio And provide video data to the MPEG decoder 500.

The MPEG decoder 500 separates and decodes the program information provided from the tuner and the demodulation block 400 into audio data and video data, respectively, and provides the decoded audio data to the voice signal processing block 800, and the video data Each of the video signal processing blocks 600 is provided. That is, since the program information provided from the tuner and the demodulation block 400 is compressed and coded, the program information is restored to the video data and the audio data before compression and coding, and then the audio signal processing block 800 and the video signal processing block 600 are restored. to provide.

The video signal processing block 600 converts the video data provided from the MPEG decoder 500 into an analog video signal of NTSC or PAL method, and provides the converted video signal to the video synthesizing block 700.

The image synthesizing block 700 mixes the image signal provided from the image signal processing block 600 with the menu screen data provided from the menu generating block 800 at a predetermined ratio, and displays the mixed image data on the display side ( For example, monitor.

The voice signal processing block 800 converts the audio data provided from the MPEG decoder 500 into an analog voice signal, amplifies the converted analog voice signal to a predetermined volume level corresponding to the system control block 200, and The amplified audio signal is output through a speaker (not shown) or the like.

In the data storage block 900, program guide information, a reservation condition, and the like are stored by the recording control of the system control block 200. In this case, the reservation condition includes a reservation time set by the user, a volume level, a program selection condition to be broadcasted, and the like.

Hereinafter, a method of executing a reservation mode of a digital television according to the present invention implemented through the above-described constituent members will be described in detail.

Referring to FIG. 2, first, during a normal viewing mode in a digital television system (S 10), when a reserved key signal is applied from the user operation block 100 by a user's operation (S 20), the system control block 200 controls the menu generation block 300 to display the reservation mode setting screen. At this time, the system control block 200 receives new program guide information from the tuner and demodulation block 400 while the normal viewing mode is performed, and updates the program guide information previously stored in the data storage block 900 in a predetermined unit. There will be.

Under the control of the system control block 200, the menu generation block 300 configures the reservation mode setting screen based on the configuration data of the preset screen, and displays the data for the configured reservation mode setting screen in the image synthesizing block 700. To provide.

The image synthesizing block 700 mixes the video signal provided from the video signal processing block 600 with the reserved mode setting screen provided from the menu generation block 300 in a preset format in order to perform the normal viewing mode in step S 10. Thereafter, the display is performed through a monitor (not shown) or the like (S30). In this case, the reservation mode setting screen output through the monitor may include a reservation time setting column, a program type setting column, a volume setting column, and the like, as shown in FIG. 3A.

Subsequently, when a key signal (for example, a numeric key signal or a direction key signal) for selecting a reserved time setting field is applied from the user operation block 100 by a user's operation, the same process as in step S30 described above is performed. The reservation time setting field is activated, and the reservation time corresponding to the key signal provided by the user selection block 100 is displayed on the monitor (not shown) by the user's operation (S40).

Subsequently, if a key signal (for example, a numeric key signal or a direction key signal) for selecting a program type setting column is applied from the user operation block 100 by a user's operation, the same process as in step S30 described above is performed. The program type setting column is activated. At this time, if the user selects a predetermined program type, for example, if the number 1 is set on the reservation mode setting screen shown in FIG. 3A (S50), the program field setting as shown in FIG. 3B is performed through the same process as step S30. Display the window.

In the program field setting window, a key signal for selecting a program field (eg, comic, action, erotic, etc.) from the user operation block 100 again, for example, the program field setting window as shown in FIG. 3B. If No. 2 is set on the included reservation mode setting screen, the program field set by the user is displayed on the reservation mode setting screen through the same process as step S30 (S60).

Subsequently, when a key signal (for example, a numeric key signal or a direction key signal) for selecting a volume setting column is applied from the user operation block 100 by a user's operation, by the same process as in step S30 described above. The volume setting field is activated, and the volume corresponding to the key signal provided from the user selection block 100 is displayed on the monitor (not shown) by the user's operation (S70).

In the present embodiment, the above-described steps S30 to S70 are sequentially described, but the above-described steps may be changed in order, and the contents set in each of the above steps S30 to S70 through the user's key manipulation. You can also change

After the above-described steps S30 to S70 are completed, when the setting completion key signal is applied from the user operation block 100 (S80), the system control block 200 generates a menu to turn off the reservation mode setting screen. While controlling the block 300 and the image synthesis block 700, while storing information on the reservation environment (condition) set in step S 30 to step S 70 in the data storage block 900, the general operation such as step S 10 is performed. Return to the viewing mode (S90).

Subsequently, during the normal viewing mode, when the power-off key signal is applied from the user operation block 100 (S100), the system control block 200 controls the power supply block (not shown) to control each of the digital television system. The power provided to the component is cut off (S 110). In this case, the tuner and the demodulation block 100 are always supplied with power to receive the standard time information, and the power is also applied to the data storage block 900 to refer to the reservation environment and program guide information set by the user. In order to perform the reservation mode according to the present invention, the system power block 200 will also be constantly powered.

Simultaneously with step S 110, the system control block 200 checks the current time with reference to the standard time information provided from the tuner and the demodulation block 100.

If the current time checked in step S 120 reaches the time reserved by the user during step S 120 (S 130), the system control block 100 immediately before powering off the digital television, the data storage block 900 The preferred program corresponding to the reservation environment set by the user is searched for from the latest program guide information stored at S140. That is, the program guide information provided from the tuner and the demodulation block 400 includes information on the program type and the program content. For example, in the case of the step S50 and the step S60, the user sets the program guide information. The tuner and the demodulation block 400 are controlled to select a channel for broadcasting a preferred program (for example, movie → drama) corresponding to a preference program search condition set by the user among all channels broadcast in the reserved time zone. At this time, in another embodiment of the present invention, when the system control block 200 searches for a channel for broadcasting a preferred program set by the user, the power is applied to the digital television system at the reserved time, and then the tuner and the demodulation block 100 are used. It may be searched by the program guide information provided by the.

As a result, the tuner and demodulation block 400 extract audio and video data of the channel selected by the system control block 200 and provide the extracted data to the MPEG decoder 500. Hereinafter, a monitor and a speaker, which are signal-processed through the MPEG decoder 500, the video signal processing block 600, the audio signal processing block 800, and the like, and whose broadcast program of the channel selected by the system control block 200 is not shown. Is output via

At this time, the system control block 200 controls the voice signal processing block 800 so that the voice signal can be output at the volume level set by the user, and the voice signal processing block 800 converts the voice signal converted into an analog system. Amplify and output the volume level corresponding to the control of the control block 200 (S 150).

According to the present invention described above, since the user's favorite program is automatically searched at the correct time, and the searched preferred program is broadcasted at the volume set by the user, the user's ease of use for the digital television system can be improved. This has the effect of enhancing the alarm function of the reservation mode.

Claims (2)

A method of executing a reservation mode of a digital television system for broadcasting a preferred program desired by a user at a time set by a user using program guide information and standard time information included in the digital broadcasting signal, Setting a reservation environment including a reservation time at which the preferred program is to be broadcast, a search condition for the preferred program, and a reservation volume for broadcasting the preferred program; Determining whether a current time reaches the reserved time with reference to the standard time information in the power-off state of the digital television; Searching for a channel on which a preferred program corresponding to the preferred program search condition is broadcasted from the program guide information when a current time referring to the standard time information reaches the reservation time; And broadcasting the preferred program by tuning to the channel, but broadcasting at the volume level corresponding to the reserved volume. The method of claim 1, wherein the search condition of the preferred program is: And a plurality of program types and a plurality of program fields corresponding to each of the program types.