KR19990052306A - 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 providing alternative program information for a program whose broadcast schedule may be changed in a program guide screen for each channel provided by a satellite broadcast receiver. According to the present invention, the program information for each channel includes alternative program information for a program whose broadcast schedule can be changed among the plurality of broadcast programs, and the method includes: displaying information about the program for each channel; A first step of displaying a program guide screen by reading the stored program information for each channel when a key signal is input; A second step of determining whether the selected program is a broadcast program including the substitute program when an arbitrary broadcast program is selected from among a plurality of programs included in the program guide screen; A third step of turning off the program guide screen and tuning a broadcast channel corresponding to the selected program when the replacement program is not included as a result of the determination; As a result of the determination, when the replacement program is included, a fourth step of displaying an additional information screen including information on the replacement program is included.

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 displaying program information whose broadcast schedule is changeable in a program guide screen displayed in a satellite broadcast receiver.

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.

That is, the program information for each channel is arranged in chronological order and displayed as a guide screen of a predetermined form, and the user scrolls the screen left, right, up, or down by using a key input means of the satellite broadcasting receiver. You will search for the broadcast program you want.

However, in such a conventional satellite broadcasting system, information on a broadcast program that can be changed due to broadcasting conditions is not provided. That is, if a broadcast is canceled due to a sports game broadcast or other circumstances in which the broadcast may be canceled due to rainy weather, information on other alternative programs is not provided. If the information on the alternative program is broadcast, it will be possible to provide a more convenient satellite broadcasting service.

Accordingly, the present invention has been made in view of the above-mentioned point, and the satellite broadcasting receiver can display alternative program information for a program whose broadcasting schedule can be changed due to broadcasting conditions on the program guide screen for each channel of the satellite broadcasting receiver. Its purpose is to provide a method for displaying a program guide screen.

In order to achieve the above object, the present invention receives a satellite broadcast signal provided through a satellite, and pre-stores information about a plurality of broadcast programs for each channel extracted from the broadcast signal, the program of the satellite broadcast receiver for displaying the same In the method for displaying a guide screen, the program information for each channel includes replacement program information for a program whose broadcast schedule can be changed among the plurality of broadcast programs, and the method displays information about the program for each channel. A first step of displaying a program guide screen by reading the stored program information for each channel when a key signal for input is input; A second step of determining whether the selected program is a broadcast program including the substitute program when an arbitrary broadcast program is selected from among a plurality of programs included in the program guide screen; A third step of turning off the program guide screen and tuning a broadcast channel corresponding to the selected program when the replacement program is not included as a result of the determination; As a result of the determination, when the replacement program is included, a method of displaying a program guide screen of the satellite broadcasting receiver comprising a fourth step of displaying an additional information screen including information on the replacement program.

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 exemplary embodiment of the present invention.

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

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, via the microcomputer 120, demodulates the program information. It is stored in a predetermined region of 140.

That is, the memory unit 140 receives and stores program information for each channel from the microcomputer 120, and stores various menu screen information (for example, a time range setting menu) in a predetermined area and then stores the microcomputer 120 again. ) Is controlled by the control.

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.

Meanwhile, in order to perform the method for displaying a program guide screen of the satellite broadcasting receiver according to the present invention, in addition to the broadcast signal for each channel and program information for each channel, the broadcast program may be changed in a bit stream received by the satellite broadcast receiver. The replacement program information for the program must be included.

When the user inputs the program guide screen key signal by operating the key input unit 110 to refer to the program guide screen for each channel in the satellite broadcast receiver configured as described above, the microcomputer 120 responds to the input key signal. The program information and screen format information for each channel stored in the memory unit 140 are read and provided to the OSD unit 170.

Accordingly, a program guide screen as shown in FIG. 2A is displayed through the OSD unit 170. In this case, the program 210 may be changed as shown in FIG. The display 211 that may be changed is separately provided so that the user can recognize it.

When the user selects a specific broadcast program by operating the key input unit 110, the microcomputer 120 turns off the guide screen displayed on the current screen and generates a channel switching signal to the tuner and the demodulator 130. The channel corresponding to the selected broadcast program is switched.

In this case, when the user selects the professional baseball 210 shown in the same drawing, that is, the program 210 whose broadcasting schedule may be changed due to the broadcast situation, the microcomputer 120 may select a program for the corresponding program from the memory unit 140. The detailed information (alternative program information) is read to display the additional information screen as shown in Fig. 2B.

That is, as shown in the drawing, the title and broadcasting time of the program, and alternative program information according to the case where the broadcasting schedule is changed due to the rain, are displayed. In this case, the channel selection item 220 is displayed on the displayed additional information screen. ) And the replacement program item 230.

In detail, when the user selects the channel selection item 220 while the additional information screen as shown in the drawing is displayed, the microcomputer 120 turns off the additional information screen displayed on the screen, and the tuner and By generating the tuning control signal to the demodulator 130, the channel of the satellite broadcasting receiver is switched to the channel corresponding to the selected program (pro baseball).

On the contrary, when the user selects the guide screen item 230 while the additional information screen as shown in the drawing is displayed, the microcomputer 120 turns off the currently displayed additional information screen and displays each channel described above. The star program guide screen is displayed again.

Meanwhile, the additional information screen is superimposed on the program guide screen for each channel according to the programming process of the microcomputer 120 and the OSD unit 170 or displayed as a separate guide screen after turning off the program guide screen for each channel. It can also be configured and displayed.

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.

Program information for each channel of the satellite broadcast and replacement program information for a specific program are pre-stored in a predetermined area of the memory unit 140, and the overall operation of the receiver receives a broadcast signal for a specific channel selected by the user, and thus a predetermined signal. During the normal viewing mode displayed through processing (step 301), if a program guide key signal for displaying program information for each channel is input through the key input unit 110 (step 303), the microcomputer 120 stores the memory. By reading the program information for each channel stored in the unit 140 and providing the program information to the OSD unit 170, a program guide screen for each channel as shown in FIG. 2A is displayed (step 305).

When the program guide screen for each channel is displayed through the above-described process, if no program is selected or a key signal for performing another specific command is not input for a predetermined time period (step 309), the microcomputer 120 Since the operation of the OSD unit 170 is blocked, the program guide screen for each channel displayed in the above-described step 305 is automatically turned off, so that the overall operation of the satellite broadcasting receiver is performed in the above-described initial step 301. The viewing mode is switched to (step 311).

On the other hand, when the user operates the key input unit 110 to select an arbitrary broadcast program (step 307), the microcomputer 120 reads the program information for each channel stored in the memory unit 140 again and selects the selected program. It is determined whether or not this changeable broadcast program is available, that is, a program in which a replacement program exists (step 307).

As a result of the determination in step 307, when there is no substitute program, the program guide screen for each channel displayed on the screen is automatically turned off by the control of the microcomputer 120, and the broadcast signal of the corresponding channel is tuned. Display (step 323).

If, as a result of the determination in step 307 described above, if there is a substitute program for the selected program, detailed information about the selected program is read from the memory unit 140 and provided to the OSD unit 170, accordingly. The additional information screen as shown in FIG. 2B is displayed (step 317). Therefore, the user can refer to the replacement program information for the corresponding program.

Meanwhile, the additional information screen displayed at this time includes a channel selection item 220 and a guide screen item 230. If the user selects the guide screen item included in the additional information screen through manipulation of the key input unit 110, the guide screen item included in the additional information screen is displayed. When the key signal for 230 is input (step 319), the microcomputer 120 turns off the additional information screen displayed on the current screen and repeats the process after step 305 described above, again for each channel. The program information screen is displayed again (step 320).

On the contrary, if the user inputs a key signal for the channel selection item 220 through the manipulation of the key input unit 110 (step 321), the microcomputer 120 may enter the current screen through the above-described step 317. After turning off the displayed additional information screen, the tuner and the demodulator 130 generate a tuning control signal to tune the corresponding channel for the selected program (step 323).

As a result, when there is a possibility that a particular broadcast program is changed due to broadcasting conditions, the user can refer to the substitute program information in the corresponding program using the additional information screen.

As described above, according to the present invention, when a broadcasting schedule for a specific program may be changed due to broadcasting conditions on a program guide screen for each channel of the satellite broadcasting receiver, by providing alternative program information for the corresponding program, a wider variety of services are provided. There is an effect that can provide.

Claims (4)

A method of displaying a program guide screen of a satellite broadcast receiver for receiving a satellite broadcast signal provided through a satellite and pre-store information on a plurality of broadcast programs for each channel extracted from the broadcast signal, and displaying the same. The program information for each channel may include replacement program information for a program whose broadcast schedule is changeable among the plurality of broadcast programs. The method is: 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; A second step of determining whether the selected program is a broadcast program including the substitute program when an arbitrary broadcast program is selected from among a plurality of programs included in the program guide screen; A third step of turning off the program guide screen and tuning a broadcast channel corresponding to the selected program when the replacement program is not included as a result of the determination; And a fourth step of displaying an additional information screen including information on the replacement program when the replacement program is included in the determination result. The method of claim 1, wherein the second step further comprises the step of automatically turning off the program guide screen when the program information screen is not selected within the predetermined predetermined time while the program guide screen is displayed. How to display program guide screen of satellite broadcasting receiver. The method of claim 1, wherein the additional information screen is displayed by being superimposed on the displayed program guide screen. The method of claim 1, wherein the additional information screen comprises: a channel selection menu for switching a channel of the satellite broadcasting receiver to a broadcasting channel corresponding to the selected broadcast program and a guide for returning to the program guide screen for each channel. A program guide screen display method of a satellite broadcasting receiver comprising a screen menu.