KR20000021876A - Method for displaying program introduction screen of satellite broadcasting receiver - Google Patents

Abstract

PURPOSE: A method for displaying a program introduction screen of a satellite broadcasting receiver is provided to display a position of the present display channel for the total channel and a position on the time axis of the present program introduction information for the total program introduction information(that is, total introduction time). CONSTITUTION: A method for displaying a program introduction screen of a satellite broadcasting receiver includes four steps. A first step is to divide total effectiveness channel comprised in a program introduction information into a large number of a vertical coordination, divide the total introduction time range into a large number of a horizontal coordination, and write out a coordination table. A second step is to search a vertical coordination value of a channel range being presented on early screen for a program introduction and a horizontal coordination value of a time range. A third step is to display a program introduction screen comprising a vertical scroll area(20) corresponding to the total vertical coordination of the coordination table and a horizontal scroll area(10) corresponding the total horizontal coordination. But a vertical scroll cursor(25) is displayed in a predetermined section of the vertical scroll area corresponding the horizontal coordination value and a horizontal scroll cursor(15) is displayed in a predetermined section of the horizontal scroll area corresponding the horizontal coordination value. A four step is to calculate a horizontal or a vertical coordination displacement corresponding the scroll key signal and change the position of the vertical scroll cursor or a horizontal scroll cursor corresponding to the calculated coordination displacement.

Description

How to Display Program Guide Screen of Satellite Broadcast Receiver

The present invention relates to a program guide screen of a satellite broadcasting receiver, and more particularly, to a method for displaying a program guide screen of a satellite broadcast receiver configured to indicate a display section of a program guide screen displayed on a monitor. will be.

In recent years, the satellite broadcasting system is rapidly expanding its use as 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. In addition to maximizing performance, improving video and audio signal quality, and facilitating the transmission of additional digital service data, the user interface can be dramatically improved.

Among the advantages of the satellite broadcasting system described above, there is a program guide screen, which is one of the user interfaces that has been significantly improved compared to other conventional broadcast systems, and the program guide screen for each channel in each time zone is scheduled to be broadcasted in the future. Program information and detailed information about a given program are provided to the user.

FIG. 1 is an exemplary view showing an example of a program guide screen provided by such a conventional satellite broadcasting receiver, and is displayed on a monitor based on a program guide request key signal by a user's key operation. At this time, the user operates the up / down or left / right scroll key provided in the key input unit (for example, the key input unit), so that the display section of the program guide screen, that is, the specific time zone or specific channel desired by the user The program information can be referred to while changing the program guide screen including the broadcast program information.

However, in the program guide screen provided in the related art, even though there is no more program guide information for a predetermined channel or there is no longer a channel of a higher number or a channel of a lower number, it cannot be confirmed. That is, even though there is no higher numbered channel because the channel is the highest numbered number of times, the program guide information of the next time zone is checked even though there is no stored program guide information for a given channel. In order to solve this problem, the key operation must be repeated several times.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to adopt a left and right scroll bar corresponding to a time axis and a vertical scroll bar corresponding to a channel axis in a program guide screen, An object of the present invention is to provide a method for displaying a program guide screen of a satellite broadcasting receiver configured to display a location on a time axis of current program guide information with respect to a location and total program guide information (ie, total guide time).

In order to achieve the above object, in the present invention, a method for displaying a program guide screen of the satellite broadcast receiver for extracting program guide information contained in the satellite broadcast signal to guide the program information to be broadcast in each channel time zone. The method of claim 1, further comprising: dividing all effective channels included in the program guide information into a plurality of vertical coordinates, and dividing the entire guide time range into a plurality of horizontal coordinates to create a coordinate table; A second step of retrieving a vertical coordinate value of a channel range displayed on an initial program guide screen from the coordinate table and retrieving a horizontal coordinate value of a time range when a key signal requesting the program guide screen is applied; Displaying a program guide screen including a vertical scroll region corresponding to all vertical coordinates of the coordinate table and a horizontal scroll region corresponding to all horizontal coordinates, the vertical scroll region corresponding to the horizontal coordinate values detected in the second step; A third step of displaying a vertical scroll cursor at a predetermined section of and displaying a horizontal scroll cursor at a predetermined section of the horizontal scroll region corresponding to the horizontal coordinate value; When a scroll key signal is applied in the third step, calculating a horizontal or vertical coordinate displacement corresponding to the scroll key signal, and changing the position of the vertical scroll cursor or the horizontal scroll cursor in response to the calculated coordinate displacement. A method of displaying a program guide screen of a satellite broadcasting receiver including four steps is provided.

1 is an exemplary diagram illustrating an example of a program guide screen provided by a conventional satellite broadcasting receiver;

2 is a block diagram showing a satellite broadcast receiver suitable for implementing a method for displaying a program guide screen of a satellite broadcast receiver according to the present invention;

3 is a detailed flowchart illustrating a method for displaying a program guide screen of a satellite broadcasting receiver according to the present invention;

4 is a detailed flowchart illustrating a process of a system control unit calculating format change data of a program guide screen format according to the present invention;

5 is an exemplary diagram showing an example of a program guide screen map created by a system controller according to the present invention;

6 is an exemplary diagram illustrating an example of a program guide screen displayed on a monitor by a method of displaying a program guide screen of a satellite broadcasting receiver according to the present invention;

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

10: horizontal scroll area 15: horizontal scroll cursor

20: vertical scroll area 25: vertical scroll area

100: key input unit 200: system control unit

300: tuner and demodulator 400: storage unit

500: MPEG Decoder 600: Video Encoder

700: menu generating unit 800: image synthesizing unit

Hereinafter, a method for displaying a program guide screen of a satellite broadcast receiver according to the present invention will be described in detail with reference to FIGS. 2 to 5.

2 is a block diagram illustrating a satellite broadcast receiver suitable for implementing a program guide screen of a satellite broadcast receiver according to the present invention, and FIG. 3 is a detailed flowchart showing a program guide screen of a satellite broadcast receiver according to the present invention. 4 is a detailed flowchart illustrating a process of the system control unit calculating format change data of a program guide screen format according to the present invention, and FIG. 5 is an example of an entire program guide screen map created by the system control unit according to the present invention. 6 is an exemplary diagram illustrating an example of a program guide screen displayed on a monitor by a method of displaying a program guide screen of a satellite broadcasting receiver according to the present invention.

First, referring to FIG. 2, a satellite broadcast receiver suitable for implementing a method for displaying a program guide screen of a satellite broadcast receiver according to the present invention includes a key input unit 100, a system control unit 200, a tuner, and a demodulator 300. , A storage unit 400, an MPEG decoder 500, a video encoder 600, a menu generating unit 700, an image synthesizing unit 800, and a display unit 900. By performing the operations, the present invention is implemented.

The key input unit 100 is composed of a key matrix provided in the main body of a satellite broadcasting receiver or a remote controller having a plurality of function keys including up / down / left / right scroll keys and program guide keys. A corresponding key signal is generated, and the generated key signal is provided to the system controller 200. In this case, the program guide key is a function key for requesting to display the program guide screen on the monitor 900 in the normal viewing mode, and the up / down / left / right scroll keys are used for the program guide screen displayed on the monitor 900. Function key for moving the section of the channel section or program guide information (time section).

The system controller 200 controls the overall operation of the satellite broadcast receiver by referring to the key signal from the key input unit 100 or the signals applied from each component of the satellite broadcast receiver. In more detail, new program guide information newly provided from the tuner and the demodulator 300 is stored in the storage 400.

In addition, the information range of the new program guide information is compared with the information range of the previously stored program guide information (that is, the number of channels and time range included in the program guide information), and if necessary, the program guide screen format is determined based on the comparison result. Calculates the format change data for changing the data format, and sets the format of the preset program guide screen based on the calculated data (for example, the size of the horizontal or vertical scroll cursor, the amount of movement of the scroll cursor corresponding to the scroll key signal, and the like). Update the.

In addition to controlling the program guide range to be displayed on the program guide screen in response to the scroll key signal, the position change of the vertical and horizontal scroll cursors in the vertical and horizontal scroll regions of the program guide screen is also controlled corresponding to the set range. .

The tuner and demodulator 300 converts the satellite broadcast signal received through the broadcast signal receiver (satellite receiving antenna), not shown, into an intermediate frequency, and then restores the transport stream through demodulation and error correction. The program service data, that is, the video packet and the audio packet of a predetermined channel corresponding to the tuning control signal of the system control unit 200, is extracted from the recovered transport stream and provided to the MPEG decoder 500, while being included in the transport stream. The program guide information and standard time information are provided to the system controller 200.

In the storage unit 400, program guide information is stored in a predetermined time unit (for example, 24 hours, 48 hours, 1 week, 2 weeks, etc.) by recording control of the system controller 200, and a preset program guide screen is provided. Data on the format or the updated program guide screen format is stored. In this case, the data for the program guide screen format may be stored in an internal memory (not shown) of the menu generator 700.

The MPEG decoder 500 restores the compressed coded bit stream of the predetermined channel provided from the tuner and the demodulator 300 to the audio and video signals before encoding based on the control signal provided from the system controller 200. The reconstructed video signal is provided to the video encoder 600 while the reconstructed audio signal is provided to an audio signal processor (not shown).

The video encoder 600 converts a video signal provided as a digital signal from the MPEG decoder 500 into an analog video signal of the National Television System Committee (NTSC) or Phase Alternation by Line (PAL) method, and the converted analog video signal. Is provided to the image synthesizing unit 800.

The menu generator 700 reconfigures the program guide information into the program guide screen based on the program guide screen format, and provides the image synthesizer 800 with data on the reconstructed program guide screen.

The image synthesizer 800 selectively provides an analog image signal provided from the video encoder 600 or a program guide screen provided from the menu generator 700 to the monitor 900.

The monitor 900 displays a program guide screen or an analog image signal provided from the image synthesizing unit 800.

Hereinafter, an example in which a method for displaying a program guide screen of a satellite broadcast receiver according to the present invention is implemented through a satellite broadcast receiver including a component that performs the above-described function will be described with reference to FIGS. 2 and 4 to 6. Detailed description with reference to the following.

First, when the power of the satellite broadcast receiver is turned on (S 10), the satellite broadcast receiver (not shown) receives a satellite broadcast signal and provides it to the tuner and demodulator 300, and the tuner and demodulator 300 receives the received broadcast signal. After converting the satellite broadcast signal to an intermediate frequency, the satellite broadcast signal is restored to a transport stream through demodulation and error correction. In this case, the transport stream includes standard time information, program guide information, and program service information (that is, compressed and encoded video packet and audio packet) for a plurality of channels. The MPEG decoder 500 is provided, and standard time information and program guide information are provided to the system controller 200.

The system controller 200 updates the prestored standard time information with the standard time information provided from the tuner and the demodulator 300, and updates the prestored program guide information with the newly provided new program guide information (S20).

On the other hand, the system controller 200 is the information range of the new program guide information provided from the tuner and demodulator 300 (that is, the number of channels and the guide time range) and the information range of the program guide information previously stored in the storage unit 400. By comparing with, it is determined whether the information range of the program guide information has been changed. That is, it is determined whether the number of effective channels and the time range included in the program guide information have changed. In this case, if there is an increase or decrease in the number of effective channels, the entire program guide information corresponding to the increased or decreased number of channels may have been increased or decreased. Since the amount of data that has been increased or decreased, the changed amount of data will be very large compared to the change of the amount of data according to the change of contents of the program guide information. Therefore, in the present embodiment, the degree of change of the data amount of the program guide information is checked, and if the checked change amount is equal to or more than the preset range, it is determined that the information range of the program guide information is changed. On the other hand, in another embodiment, it may be determined by the contents of the actual program guide information or by other methods easily (S 30).

As a result of the determination in step S30, if the information range of the new program guide information is different from the previously stored information range of the program guide information, the system control unit 200 calculates format change data for changing the format of the program guide screen, The program guide screen format previously stored in the internal memory (not shown) of the storage unit 400 or the menu generator 700 is updated by the calculated format change data. In this case, when the determination result of S 30 is that the information range of the new program guide information is the same as the information range of the previously stored program guide information, the general viewing mode of step S 50 described later is performed (S 40).

A process of calculating format change data by the system controller 200 according to the present exemplary embodiment will be described with reference to FIG. 4 as follows.

First, the information range of new program guide information is checked. That is, the total number of valid channels and the total time range included in the new program guide information are checked (S-1).

Next, a vertical coordinate corresponding to each of the total effective channels is set, and horizontal coordinates corresponding to each of the total division times are set to create a coordinate table of all program guide information as shown in FIG. In this case, the division time is a predetermined time unit for subdividing the entire program guide time for each section, and may be variously set corresponding to the entire program guide time such as 10 minutes, 30 minutes, and 1 hour (S-2).

Next, the size of the vertical scroll region 10 per unit channel is calculated by dividing the size of the preset vertical scroll region 10 by the total number of effective channels, and the size of the preset horizontal scroll region 10 is the number of total division times. The size of the horizontal scroll region 10 per unit division time is calculated by dividing by (S −3).

Subsequently, a unit section of the vertical scroll region 10 corresponding to each of the vertical coordinates of the coordinate table by referring to the size of the vertical scroll region 10 per unit channel calculated in step S-3 (hereinafter, referred to as a vertical unit section) ), And the unit section of the horizontal scroll region 10 corresponding to each of the horizontal coordinates of the coordinate table by referring to the size of the horizontal scroll region 20 per unit division time (hereinafter, referred to as a horizontal unit section) (S-4).

Subsequently, the size of the vertical scroll cursor 25 and the size of the horizontal scroll cursor 15 are referred to by referring to the size of the preset program guide screen format, that is, the number of channels and the division time displayed on one screen on the monitor 900. Calculate That is, the size of the vertical scroll cursor 25 is calculated by multiplying the number of channels displayed on one screen by the size of the vertical scroll area 20 per unit channel calculated in S-3, and the number of division times displayed on one screen. The size of the horizontal scroll cursor 15 is calculated by multiplying the size of the horizontal scroll region 10 per unit division time calculated in step S-3 (S-5).

Subsequently, the format of the program guide screen previously stored in the internal memory (not shown) of the storage unit 400 or the menu generator 700 is updated based on the data calculated in steps S-1 to S-5. (S-6).

Meanwhile, during the steps S 10 to S 40, the satellite broadcasting receiver performs the normal viewing mode by the following process. That is, the MPEG decoder 500 restores the program service information provided from the tuner and the demodulator 300 to the video signal and the audio signal before encoding, and provides the restored video signal to the video encoder 600, while restoring. The audio signal is provided to an audio signal processor (not shown).

The video encoder 600 converts a video signal provided as a digital signal from the MPEG decoder 500 into an analog video signal of the National Television System Committee (NTSC) or Phase Alternation by Line (PAL) method, and the converted analog video signal. Is provided to the image synthesizing unit 800.

Since the image synthesizing unit 800 initially operates in the normal viewing mode, the image synthesizing unit 800 displays the analog image signal provided from the video encoder 600 through the monitor 900 under the control of the system control unit 200. In this case, the audio signal may also be processed by an audio signal processor (not shown) and output as a voice / sound through a speaker (not shown) (S40).

When the key signal for requesting the program guide screen is applied from the key input unit 100 while the above-described normal viewing mode is in progress (S 60), the system control unit 200 stores the program guide information and the program guide stored in the storage unit 400. While reading data on the screen format, the display section of the current program guide screen is set from the satellite broadcast channel tuned by the tuner and demodulator 300 and standard time information provided from the tuner and demodulator 300. In this embodiment, the channel and time currently broadcasted are set as the initial display section of the program guide screen. However, in another embodiment of the present invention, other criteria (for example, the first channel of all valid channels and the start time thereof, etc.) are set. You can also set

Thereafter, the system controller 200 stores the program guide information read from the storage unit 400 and information on the initial display section of the set program guide screen in the menu generator 700, and stores the program guide information in step S40. To reconfigure the program guide screen based on the updated program guide screen format (if the information range has not been changed, the previously saved program guide screen format) and the initial display section of the program guide screen set in step S70. The menu generator 700 is controlled.

The menu generator 700 reconstructs the program guide screen under the control of the system controller 200 and provides the image synthesizer 800 with data on the reconstructed program guide screen.

On the other hand, when data for the program guide screen is applied from the menu generator 700, since the video synthesizer 800 is provided with a video signal from the video encoder 600, the system controller 200 displays the program guide screen. The image synthesizing unit 800 is controlled to synthesize the video signal at a predetermined ratio (for example, the entire program guide screen is displayed or the program guide screen is displayed in a predetermined section of the screen made of the video signal). Under the control of the system controller 200, the program 800 synthesizes the program guide screen with the video signal and outputs the same through the monitor 900.

As a result, the program guide screen including the horizontal scroll region and the vertical scroll region will be displayed on the monitor 900 (S80).

When the scroll key signal is applied from the key input unit 100 in step S 80 (S90), the system controller 200 calculates a horizontal coordinate displacement or a vertical coordinate displacement corresponding to the applied scroll key signal. That is, referring to FIG. 5, for the horizontal and vertical coordinates of the current screen, the vertical coordinates are decreased by 1 corresponding to the number of times the upward scroll key signal ↑ is applied, and the downward scroll key signal ↓ The vertical coordinate is increased by 1 in correspondence to the number of times that is applied. In addition, the horizontal coordinate is increased by one in correspondence to the number of times the rightward scroll key signal? Is applied, and the horizontal coordinate is decreased by one in correspondence to the number of times the left scroll key signal ← is applied. For example, when the upward scroll key signal ↑ is applied five times, the displacement of the vertical and horizontal coordinates becomes (-5, 0) (S 100).

Thereafter, when the system controller 200 provides the menu generator 700 with information about the vertical and horizontal coordinate displacements calculated in step S 100, the program displayed on the monitor 90 is repeated by repeating the process of step S 80. The display section of the guide screen will be changed in response to the scroll key signal applied from the key input unit 100, and the horizontal scroll cursor 15 or the vertical scroll cursor 25 will also be displayed in the horizontal scroll region 10 or vertically. The position of the scroll key signal in the scroll area 20 will be changed according to the number of times of application of the scroll key signal (S110).

According to the present invention described above, it is possible to enhance the ease of use of the program guide screen provided by the satellite broadcast receiver.

Claims (2)

A method of extracting program guide information included in a satellite broadcast signal and displaying a program guide screen of a satellite broadcast receiver for guiding program information to be broadcasted in each time zone, A first step of dividing all the effective channels included in the program guide information into a plurality of vertical coordinates and dividing the entire guide time range into a plurality of horizontal coordinates to create a coordinate table; A second step of retrieving a vertical coordinate value of a channel range displayed on an initial program guide screen from the coordinate table and retrieving a horizontal coordinate value of a time range when a key signal requesting the program guide screen is applied; Displaying a program guide screen including a vertical scroll region corresponding to all vertical coordinates of the coordinate table and a horizontal scroll region corresponding to all horizontal coordinates, the vertical scroll region corresponding to the horizontal coordinate values detected in the second step; A third step of displaying a vertical scroll cursor at a predetermined section of and displaying a horizontal scroll cursor at a predetermined section of the horizontal scroll region corresponding to the horizontal coordinate value; When a scroll key signal is applied in the third step, calculating a horizontal or vertical coordinate displacement corresponding to the scroll key signal, and changing the position of the vertical scroll cursor or the horizontal scroll cursor in response to the calculated coordinate displacement. A method of displaying a program guide screen of a satellite broadcasting receiver comprising four steps. The method of claim 1, wherein the program guide screen display method of the satellite broadcasting receiver comprises: When the new program guide information is provided, updating the previously stored program guide information with the new program guide information, Determining whether the number of channels and time ranges included in the new program guide information correspond to the number of channels and time information of the previously stored program guide information; If any one of the number of channels or time information does not match, updating the preset program guide screen format to a program guide screen format corresponding to the number of channels and time range included in the new program guide information. A method for displaying a program guide screen of a satellite broadcasting receiver.