KR19990052304A - How to Display Program Guide Screen of Satellite Broadcasting Receiver - Google Patents

Abstract

The present invention relates to a method for displaying a program guide screen of a satellite broadcast receiver capable of moving a program guide screen for each channel provided by a satellite broadcast receiver one screen 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 a program is input; When a scroll key signal for scrolling the displayed program guide screen left and right is input, the stored program information for each channel is read and the program information of the previous time zone or the next time zone corresponding to the key signal is extracted in units of one hour. A second step of doing; A third step of changing and displaying the displayed program guide screen by an unit of time based on the extracted program information; When a screen shift key signal for moving the displayed program guide screen by one screen is input, the stored program information for each channel is read and program information of a previous time zone or a next time zone corresponding to the key signal is displayed in units of one screen. A fourth step of extracting; And a fifth step of changing and displaying the displayed program guide screen in units of one screen based on the extracted program information.

Description

How to Display Program Guide Screen of Satellite Broadcasting Receiver

The present invention relates to a satellite broadcast receiver, and more particularly, to a method of displaying a program guide screen of a satellite broadcast receiver suitable for moving a program guide screen displayed by a satellite broadcast receiver by one screen.

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.

However, when a user inputs a key signal for screen scrolling to search for a broadcast program of a specific time zone desired by the user in the conventional program guide screen, the program guide screen displayed on the screen is based on the input scroll key. Since scrolling is performed by a column or an hour, the overall scrolling speed is very inconvenient, and accordingly, the user needs to repeatedly perform a cumbersome key manipulation process.

That is, as shown in the drawing, when the user wants to refer to the program information broadcasted at 18:00 with the program information displayed from 9:00 to 11:00, the cumbersome key manipulation process must be repeated. .

Accordingly, the present invention has been made in view of the above-mentioned point, and in the state where the program guide screen for each channel of the satellite broadcast is displayed, the user can move the program guide screen by one screen using the screen shift key. Its purpose is to provide a method for displaying a program guide screen.

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; When a scroll key signal for scrolling the displayed program guide screen left and right is input, the stored program information for each channel is read and the program information of the previous time zone or the next time zone corresponding to the key signal is extracted in units of one hour. A second step of doing; A third step of changing and displaying the displayed program guide screen by an unit of time based on the extracted program information; When a screen shift key signal for moving the displayed program guide screen by one screen is input, the stored program information for each channel is read and program information of a previous time zone or a next time zone corresponding to the key signal is displayed in units of one screen. A fourth step of extracting; A method for displaying a program guide screen of a satellite broadcasting receiver, comprising the step of changing and displaying the displayed program guide screen by one screen unit based on the extracted program information.

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

2 is a diagram illustrating an example of a method for displaying a program 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 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>

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 program 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, the movement of the program guide screen It comprises a scroll key and a screen moving key for moving the guide screen by one screen.

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 scroll key signal and the screen moving key signal are input through the key input unit 110 while the program guide screen for each channel is displayed, the microcomputer 120 displays the displayed guide screen by one hour unit or one screen unit. Will be moved.

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 restored transport stream is provided to the MPEG decoder 150 of the next stage.

In addition, the tuner and demodulator 130 demodulates program information for each channel included in the bit stream provided from the satellite when the satellite broadcast receiver is turned on, and then predetermined areas of the memory unit 140 through the microcomputer 120. The program information for each channel includes program information for two weeks.

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. By reading the program information for each channel and providing it to the OSD unit 170, program information for each channel of the general satellite broadcasting receiver as shown in FIG. 4 is displayed.

When the user inputs the left and right scroll key signals through the key input unit 110 to search for broadcast programs in different time zones while the program information for each channel is displayed as shown in the drawing, the microcomputer 120 inputs the input information. The program information of the previous time zone or the next time zone is read and displayed based on the program information displayed on the screen based on the scroll key signal.

For example, as shown in FIG. 4, while the program information for each channel is displayed from 9:00 to 11:00, the user scrolls right to search for program information broadcasted at the next time zone, that is, 12:00. When the key signal is input, the microcomputer 120 extracts program information corresponding to 120: 00 from the program information for each channel stored in the memory unit 140 in response to the input key signal and provides it to the OSD unit 170. Thus, the program guide screen as shown in Fig. 2A is displayed.

That is, whenever the user inputs the left and right screen scroll key signals, the program guide screen shifted by an hour unit based on the key signals is displayed.

On the other hand, when the user inputs a screen moving key signal for moving one screen to the left or right while the program guide screen for each channel is displayed, the microcomputer 120 displays the previous time zone not displayed on the current screen. Or the program information of the next time zone is read out and displayed.

For example, as shown in FIG. 4, when a user inputs a right screen moving key signal through the key input unit 110 while the program information for each channel from 9:00 to 11:00 is displayed, the microcomputer 120 extracts program information from the memory unit 140 at a next time zone, i.e., 12:00, that is not currently displayed on the screen in response to a key signal, and provides it to the OSD unit 170, as shown in FIG. 2B. Similarly, program information from 12:00 to 14:00 is displayed on the screen.

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, a 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 extracts a bit stream for a broadcast signal of a specific channel selected by the user and displays the screen on a screen through a predetermined signal processing process (step 301), each of the key input unit 110 When a key signal for displaying a program guide screen for each channel is input (step 303), the microcomputer 120 reads program information for each channel stored in a predetermined area of the memory unit 140 and provides the same to the OSD unit 170. The program guide screen for each channel as shown in FIG. 4 is displayed (step 305).

At this time, when the user again inputs a key signal for scrolling the currently displayed guide screen to the left or right through the key input unit 110 (step 307), the microcomputer 120 stores the memory unit based on the input key signal. By reading the program information corresponding to the previous time zone (for the left scroll key signal) or the next time zone (for the right scroll key signal) from the program information for each channel stored in the 140 and providing it to the OSD unit 170, The program guide screen scrolled in units of time is displayed (step 311).

On the other hand, a screen for moving the currently displayed guide screen to the left or right by one screen in the state that the program guide screen for each channel is displayed through the above-described step (305) or step (311). When the movement key signal is input (step 313), the microcomputer 120 uses the previous screen (for the left scroll key signal) or the next screen (from the program information for each channel stored in the memory unit 140 based on the input key signal). The program information corresponding to the right scroll key signal) is read (step 315). That is, as much information about the program as to compose one screen from the previous or next time zone currently displayed is read.

At this time, the read program information is provided to the OSD unit 170 again, so that the program guide screen shifted by one screen in the time zone corresponding to the screen shift key signal is displayed (step 317).

As a result, the user can move the program guide screen for each channel displayed on the screen by one screen by using the screen shift key signal separately provided in the key input unit 110, so that overall screen scrolling can be performed quickly. .

Meanwhile, the key signal for turning off the program guide screen displayed on the current screen is input through the key input unit 110 while the program guide screen for each channel is displayed through the above-described step 317, or another specific command is input. When a predetermined time elapses without inputting a key signal for performing (step 319), the microcomputer 120 blocks the driving of the OSD unit 170, thereby turning off the program guide screen, and the overall operation of the satellite broadcasting receiver. This mode is switched to the normal viewing mode (step 321).

As described above, according to the present invention, while the program guide screen for each channel of the satellite broadcast receiver is displayed, the user moves the program guide screen by one screen using the screen shift key, thereby performing a faster scrolling function. There is an effect that can be, thereby reducing the cumbersome number of key operations.

Claims (5)

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; When a scroll key signal for scrolling the displayed program guide screen left and right is input, the stored program information for each channel is read and the program information of the previous time zone or the next time zone corresponding to the key signal is extracted in units of one hour. A second step of doing; A third step of changing and displaying the displayed program guide screen by an unit of time based on the extracted program information; When a screen shift key signal for moving the displayed program guide screen by one screen is input, the stored program information for each channel is read and program information of a previous time zone or a next time zone corresponding to the key signal is displayed in units of one screen. A fourth step of extracting; And a fifth step of changing and displaying the displayed program guide screen in units of one screen based on the extracted program information. The method of claim 1, wherein in the second step, when the input scroll key signal is a left scroll key signal, program information of a previous time zone is extracted in units of an hour based on a time of the currently displayed program guide screen. A program guide screen display method of a satellite broadcast receiver, characterized in that. The method of claim 1, wherein in the second step, when the input scroll key signal is a right scroll key signal, program information of a next time zone is extracted in units of an hour based on a time of the currently displayed program guide screen. A program guide screen display method of a satellite broadcast receiver, characterized in that. The method of claim 1, wherein in the fourth step, when the input screen shift key signal is a left screen shift key signal, program information of a previous time zone is displayed on a screen basis based on a time of the currently displayed program guide screen. A program guide screen display method of a satellite broadcasting receiver characterized in that the extraction. The method of claim 1, wherein in the fourth step, when the input screen shift key signal is a right screen shift key signal, program information of a next time zone is displayed on a screen basis based on the time of the currently displayed program guide screen. A program guide screen display method of a satellite broadcasting receiver characterized in that the extraction.