KR19990056481A - How to Display Program Guide Screen of Satellite Broadcast Receiver - Google Patents

Abstract

According to the present invention, a satellite broadcasting receiver extracts and displays only a program corresponding to a specific program type selected by a user from the program information for each channel inserted into a satellite signal and displays the guide screen, thereby providing a variety of services. The present invention relates to a method for displaying a program guide screen. To this end, the present invention displays a screen mode selection menu for selecting a program information screen or a specific type of program information screen of all channels based on the plurality of channels, and displays the entire channel. When the program information screen mode is selected, the program information for each pre-stored channel is read out and displayed sequentially for each channel. When the program information screen mode is selected, a plurality of program types provided to the satellite broadcasting receiver are provided. Including When a kind selection menu screen is displayed, and if any kind among the plurality of displayed program types is selected, program information corresponding to the selected program type is extracted from the pre-stored program information for all channels, and the extracted type And displaying a program guide screen composed of program information and repeating the process after the third step if a key signal for returning to the previous screen is input while the program guide screen is displayed.

Description

How to Display Program Guide Screen of Satellite Broadcast Receiver

The present invention relates to a satellite broadcast receiver, and more particularly, to a method for displaying a program guide screen of a satellite broadcast receiver suitable for configuring and displaying program information for each channel provided to the satellite broadcast receiver in a predetermined form.

In recent years, the broadcast method using satellites, which is rapidly expanding in use, is a method of providing a broadcast signal to a wider area by using a satellite (communication satellite) located at an altitude of about tens to hundreds of kilos on the surface of the earth. In this satellite broadcasting system, for example, an old band RF signal having a frequency band of 11.7 GHz to 12.0 GHz is used.

To this end, the antenna for satellite broadcasting reception is provided with a low noise blockdown converter for converting a radio frequency (RF) signal of a very high frequency into an intermediate frequency (IF) signal, which is a high frequency RF signal. Is converted into an IF (intermediate frequency) signal in the hundreds to thousands of MHz bands (for example, 950 MHz to 2050 MHz) that can be received by a satellite broadcasting receiver (receiver).

Therefore, in the satellite broadcasting tuner provided in the satellite broadcasting receiver (receiver), the IF signal received through the low noise converter is inputted to tune the channel selected by the user. The satellite broadcasting receiver maximizes channel utilization, image and sound. Along with the improvement of signal quality and the ease of transmitting additional digital service data, the significant improvement of the user interface is a big advantage.

Meanwhile, various signals such as broadcast signals (video data and audio data), event information table (EIT), and time data table (TDT) for each channel are included in a satellite signal provided from a satellite, that is, a bit stream.

When the satellite broadcasting receiver is powered on, the various kinds of information are stored in a predetermined area of a memory means provided in the satellite broadcasting receiver and displayed on various menu screens at the request of the user. A broadcast program guide screen for guiding a broadcast program received for each channel and information about each channel for receiving a signal is included.

FIG. 4 is a diagram illustrating an example of a program guide screen for each channel provided by a conventional satellite broadcast receiver. When a user requests program information for each channel through a key input unit, FIG. 4 is inserted into a satellite broadcast signal. Program information for each channel is sequentially displayed for each time zone as shown in the figure.

However, since the program information for all channels received by the satellite broadcasting receiver is not displayed on the displayed guide screen, the user scrolls the screen left, right, up, or down by using a key input means. The user searches for the desired channel or broadcast program.

On the other hand, the additional information provided from the satellite includes information such as the grade, type (topic), start time, etc. in each program in addition to the program information for each channel as described above. If it is possible to extract the broadcast program for each type for and display it as a guide screen of a predetermined type, it will be able to meet the needs of a wider variety of users.

Accordingly, the present invention has been devised in view of the above, and extracts only the program information corresponding to the specific program type selected by the user from the program information for each channel provided to the satellite broadcasting receiver and displays it in a guide screen of a predetermined form. An object of the present invention is to provide a method for displaying a program guide screen of a satellite broadcasting receiver.

In order to achieve the above object, the present invention provides a satellite broadcast receiver for receiving a broadcast signal for a plurality of satellite broadcast channels provided through a satellite, pre-store broadcast program information for each channel extracted from the broadcast signal, and display the same. In the method for displaying a program guide screen, if a key signal for displaying program information for each channel is input, a screen mode for selecting a program information screen or a specific type of program information screen of all channels based on the plurality of channels. Displaying a selection menu; If the program information screen mode of all the channels is selected, a second step of reading program information for each pre-stored channel and sequentially displaying them for each channel; A third step of displaying a type selection menu screen including a plurality of program types provided to the satellite broadcasting receiver when the specific type of program information screen mode is selected; A fourth step of extracting program information corresponding to the selected program type from the pre-stored program information for all channels when an arbitrary type is selected from among the plurality of displayed program types; A fifth step of displaying a program guide screen composed of the extracted type of program information; When a key signal for returning to the previous screen is input while the program guide screen is displayed, a method for displaying a program guide screen of the satellite broadcasting receiver includes a sixth step of repeating the process after the third step. .

1 is a block diagram of a satellite broadcast receiver suitable for applying a method for displaying a program guide screen of a satellite broadcast receiver according to an embodiment of the present invention;

2 is a flowchart illustrating a process of displaying a program guide screen of a satellite broadcasting receiver according to an embodiment of the present invention;

3 is a diagram illustrating an example of a program guide screen of a satellite broadcasting receiver according to an embodiment of the present invention;

4 is a diagram illustrating an example of a program guide screen provided by a conventional satellite broadcasting receiver.

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

105: key input unit 110: microcomputer

115: tuner and demodulator 120: MPEG decoder

125: video encoder 130: memory unit

135: OSD unit 140: video synthesis unit

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a satellite broadcast receiver suitable for applying a method for displaying a program guide screen of a satellite broadcast receiver according to an exemplary embodiment of the present invention, and includes a key input unit 105, a microcomputer 110, a tuner, and a demodulator ( 115, an MPEG decoder 120, a video encoder 125, a memory 130, an OSD 135, and an image synthesizer 140.

Referring to FIG. 1, the key input unit 105 is composed of key metrics on a remote controller or its own panel to generate a corresponding key signal by a user's operation and provide it to the microcomputer 110, and the microcomputer 110 provides a key. Each control signal for generating a corresponding function is generated based on a key signal from the input unit 105. For example, the user broadcast channel may be selected from the outside, including a microprocessor for controlling overall operation of the receiver. When a signal is input, a corresponding tuning control signal is generated and provided to the tuner and demodulator 115 to be described later.

The tuner and demodulator 115 tunes a broadcast channel selected by a user from a broadcast signal received through a broadcast signal receiver (i.e., a satellite reception antenna), not shown, based on a tuning control signal provided from the microcomputer 110. The tuned broadcast channel signal is restored to a transport stream through a process of converting to an intermediate frequency, demodulation, and error correction, and the restored transport stream is provided to the next MPEG decoder 120.

At this time, the microcomputer 110 stores program information for each channel output from the tuner and the demodulator 115 in the memory unit 130. In the other predetermined region of the memory unit 130, the overall operation of the satellite broadcasting receiver is performed. Various menu screen information for controlling the pre-stored information.

On the other hand, in the MPEG decoder 120, on the basis of the control signal provided from the microcomputer 110, the compressed and encoded audio signal and the video signal of the broadcast channel provided from the tuner and demodulator 115, In consideration of spatiotemporal and spatial correlation, the compressed and encoded video signal is restored to the original signal before encoding using a decoding technique such as variable length decoding, inverse DCT, inverse quantization, and motion compensation, and the digital broadcast video signal reconstructed here The next stage is provided to the video encoder 125, and the reconstructed audio signal is provided to an audio signal processor (not shown).

In addition, the video encoder 125 converts the selected digital broadcast video signal provided by the MPEG decoder 120 into an NTSC or PAL analog video signal, and then provides the converted video signal to the image synthesizer 140, and the OSD unit 135. In addition, various menu screen information and message information provided from the microcomputer 110 are configured as a guide screen in a predetermined form and provided to the image synthesizing unit 140.

Therefore, the image synthesizing unit 140 transfers the analog satellite broadcasting signal output from the video encoder 125 to the display side, not shown, or omits a screen in which various menu screen data displayed through the OSD unit 135 are mixed. To the display side.

When the user inputs a key signal for displaying program information for each channel provided to the satellite broadcast receiver in the satellite broadcast receiver configured as described above, the microcomputer 110 displays various types of menu screens stored in the memory 130. The information is read and the guide screen mode selection menu as shown in FIG. 2A is displayed through the OSD unit 135.

That is, as shown in FIG. 2A, a menu for selecting whether to display program information for all channels or to search for each type of program is displayed. In this case, the user manipulates the key input unit 105 to select a program type. When the search is selected, the microcomputer 110 reads the menu screen information previously stored in the memory 130 again and displays a menu screen for selecting a program type as shown in FIG. 2B.

Therefore, the user selects the type of the program he / she wants to search by referring to the program type selection menu displayed on the screen, and when the user selects 'sport' from the types of the program displayed on the screen, the microcomputer ( Under the control of 110, a detailed selection menu for the type of the selected program (i.e. sports) as shown in FIG. 2C is displayed.

In addition, the user may again select one or more desired detailed items while the detailed menu according to the program type as shown in FIG. 2C is displayed, and the microcomputer 110 may store the entire program information stored in the memory unit 130. Since only the program corresponding to the type selected by the user is extracted and provided to the OSD unit 135, the type of the program selected by the user is sequentially displayed for each time zone as illustrated in FIG. 2D.

That is, the user may extract and refer to only information on a program of a desired type among various types of broadcast programs provided to the satellite broadcasting receiver.

3 is a flowchart illustrating a process of displaying a program guide screen of a satellite broadcasting receiver according to an exemplary embodiment of the present invention. Hereinafter, the series of processes described above with reference to the accompanying drawings will be described in detail.

During the general viewing mode in which the overall operation of the satellite broadcasting receiver receives the broadcast signal of the channel selected by the user and displays it through a predetermined signal processing process (step 301), program information for each channel is displayed from the key input unit 105. When a key signal for inputting is input (step 303), the microcomputer 110 reads the menu screen information previously stored in the memory unit 130 and provides it to the OSD unit 135, thereby providing a guide screen mode selection menu as shown in FIG. 2A. Is displayed on the screen (step 305).

At this time, through the key input unit 105, a 'full information search' for displaying program information of all channels of the satellite broadcasting receiver is selected or a predetermined time elapses without input of a key signal for selecting a guide screen mode. In operation 309, the microcomputer 110 reads program information about all channels stored in the memory unit 130 and displays a general program guide screen as shown in FIG. 4 through the OSD unit 135. (Step 311).

In the state in which the program information screen for the entire channel is displayed as described above, the user can scroll the screen by operating the key input unit 105, so that the user can search for the desired program. When a key signal for returning to the previous menu screen, i.e., the guide screen mode selection menu as shown in FIG. 2A is input (step 313), the microcomputer 110 turns off the currently displayed program guide screen, and 305) By repeating the following process, the guide screen mode selection menu as shown in FIG. 2A is displayed again.

Meanwhile, when the key signal for searching for each program type is input instead of the key signal for searching the entire information in the state where the guide screen mode selection menu is displayed through the above-described step 305 (step 307), the microcomputer 110 again returns to the input mode. After reading menu screen information stored in a predetermined area of the memory unit 130, a menu screen for selecting a type of program to be searched is displayed as shown in FIG. 2B. The detailed menu screen is displayed as shown in FIG. 2C (step 317).

When the user selects a specific program type using the program type selection menu screen shown in FIGS. 2B and 2C (step 319), the microcomputer 110 writes to another predetermined area of the memory unit 130. FIG. By extracting only the program information corresponding to the program type selected by the user from the stored program information for each channel (step 321) and providing it to the OSD unit 135, the program information corresponding to the type selected by the user as shown in FIG. 2D. The program guide screen consisting of only ones is sequentially displayed (step 323).

The user inputs a key signal for returning to the previous menu screen through the key input unit 105 in order to search for other types of program information while the program information for the specific type selected by the user is displayed through the above-described process. In operation 325, the microcomputer 110 turns off the program guide screen displayed on the current screen, and repeats the process after the above-described step 317 to display the program type selection menu screen as shown in FIG. 2B. Will be displayed again.

On the other hand, when the key signal for turning off the program guide screen displayed on the current screen is input instead of the guide screen return key signal in step 325 described above (step 327), the microcomputer 110 responds to the key signal to display the OSD. By blocking the driving of the unit 135, the program guide screen is turned off and the overall operation of the satellite broadcasting receiver is switched to the normal viewing mode as in the initial stage 301 described above (step 329).

As described above, according to the present invention, by extracting only the program information corresponding to the type selected by the user from the program information of the plurality of channels in the program guide screen of the satellite broadcast receiver to display as a separate guide screen, There is an effect that can meet the needs.

Claims (3)

In the method for displaying a program guide screen of a satellite broadcast receiver for receiving a broadcast signal for a plurality of satellite broadcast channels provided through a satellite, pre-store broadcast program information for each channel extracted from the broadcast signal, and display the same; A first step of displaying a screen mode selection menu for selecting a program information screen or a specific type of program information screen of all channels based on the plurality of channels when a key signal for displaying program information for each channel is input; ; If the program information screen mode of all the channels is selected, a second step of reading program information for each pre-stored channel and sequentially displaying them for each channel; A third step of displaying a type selection menu screen including a plurality of program types provided to the satellite broadcasting receiver when the specific type of program information screen mode is selected; A fourth step of extracting program information corresponding to the selected program type from the pre-stored program information for all channels when an arbitrary type is selected from among the plurality of displayed program types; A fifth step of displaying a program guide screen composed of the extracted type of program information; And a sixth step of repeating the process after the third step if a key signal for returning to the previous screen is input while the program guide screen is displayed. The method of claim 1, The third step may further include reading and displaying program information about all of the pre-stored channels if an arbitrary screen mode is not selected for a predetermined time while the screen mode selection menu is displayed. How to display the program guide screen of the broadcast receiver. The method of claim 1, The fourth step may further include displaying a detailed selection menu for the selected type when any one of the displayed plurality of program types is selected.