KR19990042794A - How to Display the Guide Screen of a Satellite Broadcast Receiver - Google Patents

Abstract

The present invention relates to a method for displaying a program guide screen of a satellite broadcast receiver which can move a program guide screen displayed on a satellite broadcast receiver to a guide screen for a next date in the same time zone without a cumbersome key manipulation process. A first step of displaying a program guide screen by reading the stored program information for each channel when a key signal for displaying information about the program for each channel is input; Detecting a time corresponding to the displayed guide screen when a date shift key signal is input to the displayed guide screen; A third step of reading program information corresponding to the next date of the currently displayed guide screen from the stored program information for each channel, and extracting program information corresponding to the detected time from the read next program information; And a fourth step of displaying a program guide screen for the changed date based on the extracted program information for the corresponding time of the next date.

Description

How to Display the Guide Screen of a Satellite Broadcast Receiver

The present invention relates to a satellite broadcast receiver, and more particularly, to a method of displaying a guide screen of a satellite broadcast receiver for displaying a program guide screen displayed by a satellite broadcast receiver in a specific time unit.

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, in satellite broadcasting, a transmission signal of a digital broadcasting signal received from a satellite through a fixed channel to a satellite broadcasting receiver is restored to a transport stream through a process of converting to an intermediate frequency, demodulating, and correcting an error. The stream includes various information such as broadcast signals (video data and audio data) for each channel, an event information table (EIT), a time data table (TDT), and the like.

Then, the program guide information stored in the memory area is used to tune a specific channel selected in a transport stream received through a satellite channel when a specific channel is selected by the user, and also by the user. When the provision of broadcast program information of the channel (i.e., display) is requested, it is composed of a menu screen and displayed on the monitor.

FIG. 4 is a diagram illustrating an example of a program guide screen provided by a conventional satellite broadcasting receiver, and a user inputs a corresponding key signal to refer to program information for each channel while watching a satellite broadcasting. When the program guide screen for each channel is called, the program guide screen as shown in the drawing is displayed on the screen.

In addition, the user may scroll the guide screen displayed by manipulating the key input unit left, right, or up and down to refer to broadcast program information of a specific time zone or a specific channel desired by the user.

On the other hand, in the case of office workers who have a regular commute time, the time for watching TV is also constant, so that the broadcasting time zone for the user to display the program guide screen for each channel will also be constant.

However, in the program guide screen displayed in the conventional satellite broadcasting receiver, it is inconvenient to repeat the cumbersome key manipulation process for screen scrolling in order to refer to the program guide screen for the next date in the same time zone from the currently displayed guide screen. have.

Accordingly, the present invention has been devised in view of the above-mentioned point, and the program guide screen for each channel of the satellite broadcast receiver can be displayed and the user can move to the guide screen of the same time zone for the next date without cumbersome key manipulation for screen scrolling. An object of the present invention is to provide a method of displaying a guide screen of a satellite broadcasting receiver.

In order to achieve the above object, the present invention, in the method of displaying a guide screen of a satellite broadcast receiver for receiving a satellite broadcast signal provided through a satellite, pre-store the broadcast program information for each channel extracted from the broadcast signal, and display it A first step of displaying a program guide screen by reading the stored program information for each channel if a key signal for displaying information about the program for each channel is input; Detecting a time corresponding to the displayed guide screen when a date shift key signal is input to the displayed guide screen; A third step of reading program information corresponding to the next date of the currently displayed guide screen from the stored program information for each channel, and extracting program information corresponding to the detected time from the read next program information; And a fourth step of displaying a program guide screen for a changed date based on the extracted program information on the corresponding time of the next date.

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

2 is a diagram illustrating an example of a method for displaying a guide screen of a satellite broadcasting receiver according to an embodiment of the present invention;

3 is a flowchart illustrating a process of displaying a 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>

110: key input unit 120: microcomputer

130 tuner and demodulator 140 memory unit

150: MPEG Decoder 160: Video Encoder

170: OSD unit 180: image synthesizing 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 guide screen of a satellite broadcast receiver according to an exemplary embodiment of the present invention, and includes a key input unit 110, a microcomputer 120, a tuner, and a demodulator 130. ), A memory unit 140, an MPEG decoder 150, a video encoder 160, an OSD unit 170, and an image synthesizer 180.

Referring to the figure, the key input unit 110 is composed of key metrics on the remote control or its own panel to generate a corresponding key signal by the user's operation and provide it to the microcomputer 120, in particular, a direction key for scrolling the screen. And a date shift key for displaying a program guide screen for the next date in the same time zone while the program guide screen is displayed.

The microcomputer 120 generates various control signals for performing a corresponding function based on the key signal from the key input unit 110. For example, the microcomputer 120 may include a microprocessor for controlling overall operation of the satellite broadcasting receiver. When the user broadcast channel selection signal is input from the outside, a corresponding tuning control signal is generated and provided to the tuner and demodulator 130 to be described later.

In addition, when the date movement key signal is input through the key input unit 110 while the program guide screen for each channel is displayed, the microcomputer 120 detects time information corresponding to the guide screen on which the current screen is displayed, which will be described later. The program information for the next date of the detected time zone is extracted from the program information for each channel stored in the memory unit 140.

The tuner and demodulator 130 tunes a broadcast channel selected by a user in a broadcast signal received through a broadcast signal receiver (ie, a satellite reception antenna), not shown, based on a tuning control signal provided from the microcomputer 120. 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 recovered transport stream is provided to the next MPEG decoder 150.

On the other hand, in the MPEG decoder 150, on the basis of the control signal provided from the microcomputer 120, the compressed and encoded audio and video signals of the broadcast channel provided from the tuner and demodulator 130, In consideration of spatiotemporal and spatial correlation, the compressed and encoded video signal is restored to the original signal before encoding by using a decoding technique such as variable length decoding, inverse DCT, inverse quantization, and motion compensation, and the restored digital broadcast video signal The next stage is provided to the video encoder 160, the reconstructed audio signal is provided to an audio signal processor not shown.

In addition, the video encoder 160 converts the selected digital broadcast video signal provided by the MPEG decoder 150 into an NTSC or PAL analog video signal and then provides the image synthesizer 180 to the image synthesizer 180. The OSD unit 170 The program information of each channel provided from the microcomputer 120 is configured as an OSD screen of a predetermined type and displayed on the screen through the image synthesizing unit 180 to be described later.

Accordingly, the image synthesizing unit 180 transfers the analog satellite broadcasting signal output from the video encoder 160 to a display side, not shown, or omits a screen in which various menu screen data displayed through the OSD unit 170 are mixed. To the display side.

In the satellite broadcasting receiver configured as described above, when the user manipulates the key input unit 110 to call a program guide screen for each channel, the microcomputer 120 responds to the input key signal. The program information for each channel is read and provided to the OSD unit 170.

On the other hand, the program information for each channel described above is typically two weeks of program information, which is included in the bit stream and transmitted together with the broadcast signal for each channel, which is automatically tuned and demodulated when the satellite broadcast receiver is turned on again. After the demodulation through the 130 is stored in the predetermined region of the memory unit 140 by the microcomputer (120).

On the other hand, the OSD unit 170 configures the program information for each channel provided from the microcomputer 120 as a guide screen of a predetermined form and provides the image synthesizer 180 with the program information for each channel as shown in FIG. 2A. The guide screen is displayed on the screen.

After the above-described process, while the program guide screen for each channel is displayed as shown in the same drawing, the user operates the key input unit 110 again on the next date of the same time zone as the time zone of the program information displayed on the current screen. When the date shift key signal provided in the key input unit 110 is input to display program information, the microcomputer 120 detects a time corresponding to the currently displayed guide screen.

Then, the program information corresponding to the next date is read from the program information for each channel stored in the predetermined region of the memory unit 140, and only the program information of the time zone corresponding to the currently displayed guide screen is extracted from the read program information. It is displayed on the screen through the OSD unit 170.

That is, when the date shift key provided in the key input unit 110 is input while the program guide screen for each channel of October 21 is displayed as shown in the drawing, the microcomputer 120 stores the memory unit 140. By reading the program information of the time zone corresponding to the time of the currently displayed guide screen among the program information for each channel stored on the next date (October 22), and providing it to the OSD unit 170, as shown in FIG. 2B. The program guide screen of October 22 of the same time zone is displayed.

3 is a flowchart illustrating a process of displaying a guide screen of a satellite broadcast receiver according to an exemplary embodiment of the present invention. The following describes a series of processes described above with reference to the drawings.

During the normal viewing mode in which the operation of the satellite broadcasting receiver displays a signal for a specific broadcast channel selected by the user through a predetermined signal processing process (step 301), a program guide screen for each channel is displayed from the key input unit 110. When a key signal for inputting is input (step 301), program information for each channel stored in a predetermined area of the memory unit 140 is read by the microcomputer 120 and provided to the OSD unit 170, thereby as shown in FIG. 2A. The program guide screen for each channel as shown is displayed (step 305).

In the state in which the program guide screen for each channel is displayed through the above-described process, when the user operates the key input unit 110 to scroll the screen (307), the microcomputer 120 receives the scroll key signal (left. In response to the right and the up and down), the program information of the corresponding position is read from the memory unit 140 and provided to the OSD unit 170 so that the guide screen corresponding to the scroll key signal of the user is displayed (step). 309).

On the other hand, after each of the above-described step 305 or 309, the user manipulates the key input unit 110 to display the guide screen for the next date in the same time zone as the time zone of the currently displayed guide screen. When the date shift key) signal is input (step 311), the microcomputer 120 detects the time for the currently displayed guide screen (step 313).

Then, the program information corresponding to the next date is read out of the program information for each channel stored in the predetermined region of the memory unit 140, and the program information corresponding to the time detected in the above-described step 313 of the read program information again. Only bays are extracted (step 315).

That is, in response to the date shift key signal input through the key input unit 110, the program information for the next date of the same time zone as the time of the currently displayed guide screen is extracted from the program information for each channel stored in the memory unit 140. Done.

Subsequently, the microcomputer 120 provides the program information extracted in step 315 to the OSD unit 170 so that the program guide screen for the next date in the same time zone is displayed as shown in FIG. 2B. (Step 317).

When the screen scroll key signal or the date change key signal are input again through the key input unit 110 while the program guide screen for each channel of the changed date is displayed through the above-described process, the process after step 305 described above is performed. If a predetermined time elapses without inputting a key signal for turning off the currently displayed guidance screen or inputting a key signal for performing another specific command (step 319), the microcomputer 120 By the operation of the OSD unit 170 is cut off, the program guide screen displayed on the screen is turned off, and the overall operation of the satellite broadcasting receiver is switched to the normal viewing mode (step 321).

As a result, the user can operate the date shift key provided in the key input unit 110 to display the program guide screen of the same time zone corresponding to the next date.

As described above, according to the present invention, the program guide screen for each channel of the satellite broadcasting receiver is displayed, thereby moving to the guide screen for the next date in the same time zone without scrolling the screen, thereby reducing the user's cumbersome key manipulation process. There is an effect, there is an effect that can meet the needs of various users.

Claims (4)

In the method of displaying a guide screen of a satellite broadcast receiver for receiving a satellite broadcast signal provided through a satellite, pre-store broadcasting program information for each channel extracted from the broadcast signal, and display the same; A first step of displaying a program guide screen by reading the stored program information for each channel when a key signal for displaying information about the program for each channel is input; Detecting a time corresponding to the displayed guide screen when a date shift key signal is input to the displayed guide screen; A third step of reading program information corresponding to the next date of the currently displayed guide screen from the stored program information for each channel, and extracting program information corresponding to the detected time from the read next program information; And displaying a program guide screen for the changed date based on the extracted program information for the corresponding time of the next date. The satellite broadcasting receiver of claim 1, wherein the second step further comprises reading and displaying program information corresponding to the key signal when a key signal for scrolling the displayed program guide screen is input. How to display the guide screen. The guide screen display of claim 1, further comprising automatically turning off the displayed program guide screen when the date shift key signal is not input for a predetermined time. Way. The method of claim 1, wherein the fourth step further includes repeating the process after the second step when the date shift key signal is input again while the program guide screen for the changed date is displayed. How to display the guide screen of the satellite broadcast receiver.