KR19990052308A - How to restrict viewing of satellite receiver - Google Patents

Abstract

The present invention relates to a method for restricting viewing of a satellite broadcast receiver capable of limiting viewing of a specific user by setting a password for an adult broadcast program. To this end, the present invention provides a method for setting a password for the adult program. Stage 1; If a key signal for displaying a program guide screen for each channel is input, a second step of reading the stored program information for each channel and displaying the program guide screen; A third step of determining whether the selected broadcast program is the adult broadcast program when any broadcast program included in the program guide screen is selected; A fourth step of turning off the guide screen and tuning a channel corresponding to the selected broadcast program if it is not an adult broadcast program as a result of the determination; A fifth step of displaying a password input menu screen for the adult program if the adult broadcast program is displayed, and comparing the preset password with the input password if the password is input; A sixth step of turning off the password input menu screen and returning to the program guide screen for each channel if the passwords do not match with each other as a result of the comparison; And a seventh step of turning off the password input menu screen and tuning a channel corresponding to the selected adult program if the respective passwords match each other.

Description

How to restrict viewing of satellite receiver

The present invention relates to a satellite broadcast receiver, and more particularly, to a method for limiting viewing of a satellite broadcast receiver suitable for restricting viewing of a specific program among various satellite broadcast programs.

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 such a general satellite broadcasting receiver. 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.

Then, the user scrolls the screen left and right by manipulating the key input unit to display broadcast program information of a desired time zone.

Meanwhile, in the general satellite broadcast program guide screen, a separate display 410 for an adult program, that is, a non-burner view program, is notified to the viewer as shown in FIG.

However, such a conventional satellite broadcast receiver does not provide a function of actually limiting the viewing of adolescents on the program in addition to the function of not displaying the view 410 for the adult program, as shown in FIG.

Accordingly, the present invention has been made in view of the above, and by setting a password for an adult broadcast program among various broadcast programs provided by the satellite broadcast receiver, viewing of a satellite broadcast receiver capable of restricting viewing of a specific user The purpose is to provide a restriction method.

In order to achieve the above object, the present invention is to receive and display broadcast signals for various broadcast programs provided via satellite, and to the adult program of the satellite broadcast receiver to extract and store program information for each channel from the broadcast signal CLAIMS 1. A method for restricting viewing, comprising: a first step of setting a password for the adult program; If a key signal for displaying a program guide screen for each channel is input, a second step of reading the stored program information for each channel and displaying the program guide screen; A third step of determining whether the selected broadcast program is the adult broadcast program when any broadcast program included in the program guide screen is selected; A fourth step of turning off the guide screen and tuning a channel corresponding to the selected broadcast program if it is not an adult broadcast program as a result of the determination; A fifth step of displaying a password input menu screen for the adult program if the adult broadcast program is displayed, and comparing the preset password with the input password if the password is input; A sixth step of turning off the password input menu screen and returning to the program guide screen for each channel if the respective passwords do not match with each other as a result of the comparison; And a seventh step of turning off the password input menu screen and tuning a channel corresponding to the selected adult program when the respective passwords match each other. do.

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

2 is a view for explaining a viewing restriction method of a satellite broadcasting receiver according to an embodiment of the present invention;

3 is a flowchart illustrating a parental control process of a satellite broadcast receiver according to an embodiment of the present invention;

4 is a diagram illustrating an example of a program guide screen provided by a general 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 restricting viewing 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 predetermined areas of the memory unit 140 through the microcomputer 120. Will be stored in.

That is, the memory unit 140 receives and stores program information for each channel from the microcomputer 120, and stores various menu screen information and program information for each channel in a predetermined area to control the microcomputer 120 again. Will be output by

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.

Referring to the drawings, in the satellite broadcast receiver configured as described above, the user controls the viewing of an adult (non-elementary) broadcast program among a plurality of broadcast programs provided to the satellite broadcast receiver by manipulating the key input unit 110. When a key signal for setting the input signal is input, the microcomputer 120 selects the menu screen information according to the password setting among various menu screen information stored in the memory unit 140 based on the key signal provided from the key input unit 110. By reading and providing it back to the OSD unit 170, a password setting menu screen as shown in Fig. 2 is displayed.

Meanwhile, the displayed password setting menu screen may be superimposed on the program guide screen for each channel according to the programming process of the microcomputer 120 or the OSD unit 170, or may be displayed after the program guide screen is turned off. It is also possible to configure and display the screen of.

On the other hand, when the user enters the password for the adult program by operating the key input unit 110 while the password setting menu screen for the adult program is displayed through the above-described process, the microcomputer 120 is input The password is stored in a predetermined area of the memory unit 140 and the password setting menu screen displayed on the screen is turned off.

As described above, when a user wants to watch an adult program while a password for the adult program is set, a menu screen for inputting the password is automatically displayed, and the password entered by the user is stored in the memory unit ( The program can be watched only when the password matches the password set in 140).

3 is a diagram illustrating a viewing restriction process of a satellite broadcasting receiver according to an exemplary embodiment of the present invention, which will be described in detail with reference to the accompanying drawings.

During the normal viewing mode of the satellite broadcasting receiver (step 301), if a program guide key signal for displaying program information for each channel is input (step 303), the microcomputer 120 stores each channel previously stored in the memory unit 140. The program information is read out, and the read information is displayed on the program guide screen as shown in FIG. 4 through the OSD unit 170 (step 305).

If the key signal for turning off the program guide screen is input while the program guide screen for each channel is displayed through the above-described process, or if no key signal for performing another specific command is input for a predetermined time (step 309). The program guide screen displayed on the current screen by the microcomputer is automatically turned off (step 325), and the overall operation of the satellite broadcasting receiver is switched to the normal viewing mode of the initial step 301 described above (step 327).

On the other hand, when the selection key signal for a specific program is input from the key input unit 110 (step 307), the microcomputer 120 determines whether the selected program is an adult program (step 311), where the determination result, If the program is not an adult program, the microcomputer 120 turns off the program guide screen for each channel displayed on the current screen through step 305 described above (step 325), and corresponds to a program selected by the user for the channel of the satellite broadcasting receiver. The broadcast channel is switched to the broadcast channel (step 327).

If, as a result of the determination in the above-described step 311, when the program selected by the user is an adult program, the microcomputer 120 reads various menu screen information stored in the memory unit 140 and secrets it through the OSD unit 170. A predetermined type of menu screen or a prompt message (eg, 'Please enter a password') for displaying the number is displayed (step 313).

If the password is not input through the key input unit 110 within the predetermined time period (step 317), the microcomputer 120 automatically turns off the password input menu screen displayed on the screen (step 319). The process after step 305 is repeated again to display the program guide screen for each channel through the OSD unit 170.

Meanwhile, when the password input menu screen is displayed through the above-described step 313, when the password for the adult program is input through the key input unit 110 (step 315), the microcomputer 120 inputs the secret. The number and the password set in the predetermined area of the memory unit 140 are compared (step 321). If the result of the comparison does not coincide with each other, the microcomputer 120 transmits a corresponding guidance message through the OSD unit 170 ( For example, the 'password does not match' is displayed for a predetermined time (for example, 3 seconds) and then the program guide screen for each channel is displayed again (step 323).

On the contrary, when the comparison result in the above-described step 321, the password input through the key input unit 110 and the password set in the predetermined region of the memory unit 140 is matched, the microcomputer 325 is the OSD unit By turning off the driving of the 170, the password input menu screen is turned off (step 325), and the bit stream of the broadcasting channel corresponding to the adult program selected by the user is tuned to display on the screen after a predetermined signal processing process. (Step 327).

As a result, when the password for the adult broadcast program is set, only a user who knows the set password can watch the adult program.

As described above, according to the present invention, by setting a password for an adult broadcast program among various broadcast programs provided by a satellite broadcast receiver, by restricting viewing of an adult program by a specific user, it is possible to prevent adolescents from watching harmful programs. It is effective, and accordingly has the effect of improving the overall function of the product.

Claims (2)

In the method of receiving and displaying broadcast signals for various broadcast programs provided through a satellite, and extracting and storing program information for each channel from the broadcast signal to limit the viewing of the adult program of the satellite broadcast receiver, A first step of setting a password for the adult program; If a key signal for displaying a program guide screen for each channel is input, a second step of reading the stored program information for each channel and displaying the program guide screen; A third step of determining whether the selected broadcast program is the adult broadcast program when any broadcast program included in the program guide screen is selected; A fourth step of turning off the guide screen and tuning a channel corresponding to the selected broadcast program if it is not an adult broadcast program as a result of the determination; A fifth step of displaying a password input menu screen for the adult program if the adult broadcast program is displayed, and comparing the preset password with the input password if the password is input; A sixth step of turning off the password input menu screen and returning to the program guide screen for each channel if the respective passwords do not match with each other as a result of the comparison; And a seventh step of turning off the password input menu screen and tuning a channel corresponding to the selected adult program when the respective passwords match each other. The method of claim 1, wherein the first step, A first step of displaying a menu screen for setting a password when a key signal for setting a password for the adult program is input; And when the password is input, turning off the displayed password setting menu screen and storing the input password.