KR100190603B1 - Digital satellite broadcasting receiver having kid protecting function - Google Patents

Abstract

The present invention relates to a digital satellite broadcast receiver having a function of not allowing a minor viewer to view the movie.

According to the digital satellite broadcast receiver having the inability to perform the minorship viewing function of the present invention, the program subsidence rate for the inability to view the minor in the broadcast station system of the digital satellite broadcasting system is inserted in the PID of the transport stream and transmitted to the digital satellite broadcast receiver, In the case of the inability to view, it is necessary to select a predetermined password so that a minor can discriminate among various programs including a movie that is not allowed to be watched for minors.

Description

Digital Satellite Broadcasting Receiver with Inability to Watch Minors

FIG. 1 is a block diagram showing a configuration of a digital satellite broadcast receiver system for carrying out the present invention; FIG.

FIG. 2 is a circuit block diagram showing the internal configuration of the digital satellite broadcast receiver 10 shown in FIG.

FIG. 3 is a view showing a structure of a transport stream transmitted from a broadcast satellite; FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

1: smart card 10: digital satellite broadcasting receiver

11: Microcomputer 12: Flash memory

13: channel section 14: demultiplexer

15: video / audio decoder 16: memory (RAM)

17: Video encoder 18: Audio D / A converter

20: descrambling device 30: television set

In particular, the present invention relates to a digital satellite broadcast receiver having an inability to view a minor, and more particularly, to a system and method for inserting and transmitting a program subscriber rating for PID of a transport stream in a broadcast station system of a digital satellite broadcasting system, A digital satellite broadcast receiver having a function of not allowing a minor to observe a program of a minority inaccessible rating by allowing a receiver to select a predetermined password when the minor can not be viewed.

Referring to FIG. 1, a conventional digital satellite broadcast receiver (DSVR: Digital Satellite Video Receiver) checks a smart card 1 and operates a descrambling device 20 to decode a scramble It becomes possible to view the broadcast.

In the digital satellite broadcasting receiver equipped with such a conventional descrambling device 20, when paying only the subscription fee in the case of paid broadcasting, the viewing time corresponding to the subscription is recorded on the smart card so that anyone, regardless of sex, .

However, such a conventional digital satellite broadcasting receiver has a problem that a program that can not be viewed by a minor such as a violent pro, an adult pro-nano or an obscene pro is exposed to a minor such as a child without any means of sanction.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems.

Accordingly, it is an object of the present invention to provide a system and method for transmitting a PST in a PTS of a transport stream for a broadcast station system of a digital satellite broadcasting system, And to enable a viewer to select a program that can not be viewed by a minor.

As a technical means for achieving the above object, the apparatus of the present invention includes a digital satellite broadcasting receiver for receiving a digital broadcasting signal from a broadcasting satellite, a smart card for controlling the operation of the digital satellite broadcasting receiver, A descrambler for descrambling a signal received by a digital satellite broadcast receiver by a reader, and a digital satellite broadcast receiving system for performing signal processing such as tuning and demodulating the descrambled signal and then outputting the descrambled signal to a television set ,

And determines whether or not underage viewing is possible based on the information corresponding to the cardiac arrest rate (PID) included in the PID (Packet IDentifier: Packet Identification Code) of the transport stream from the channel. If the viewing is possible, A microcomputer for outputting a viewable signal when the input number matches the password registered in the flash memory, and a non-viewable signal when the input number matches the password registered in the flash memory, to the video / audio decoder;

A flash memory in which the password is registered;

A channel unit for tuning and QPSK demodulating a high frequency (RF) signal input from an antenna, converting the signal into a digital signal and error-correcting the digital signal;

A demultiplexer for separating the digital signal from the channel unit into a video signal and an audio signal, respectively;

Wherein the decode operation decodes the digital video signal and the audio signal input from the demultiplexer, or decodes the digital video signal and the audio signal input from the demultiplexer in accordance with a viewable signal or an unviewable signal from the microcomputer, A video / audio decoder for decoding;

A memory for sequentially storing digital video signals inputted from the demultiplexer through a video / audio decoder under the control of the microcomputer;

A video encoder for encoding the decoded digital video signal input from the video / audio decoder according to a television broadcasting scheme; And

And an audio D / A converter for converting the decoded audio signal input from the video / audio decoder into an analog signal.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a digital satellite broadcasting receiver having a function of not allowing a minor viewer according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a block diagram showing a configuration of a digital satellite broadcast receiving system for carrying out the present invention.

1, a digital satellite broadcast receiving system includes a digital satellite broadcast receiver 10 for receiving a digital broadcast signal from a broadcast satellite, a smart card 1 for controlling the operation of the digital satellite broadcast receiver 10, A descrambling device 20 for descrambling signals received by the smart card 1 and a smart card reader to a digital satellite broadcast receiver 10, and a signal processing device for tuning and descrambling the descrambled signal, And a television set (30) for outputting the outputted television signal to a speaker and a screen.

FIG. 2 is a circuit block diagram showing the internal configuration of the digital satellite broadcast receiver 10 shown in FIG.

Referring to FIG. 2, the digital satellite broadcast receiver 10 determines whether a minority viewing is impossible based on information corresponding to a cardiac arrest rate (PID) included in a PID (Packet IDentifier) of a transport stream from the channel unit 13 If the viewing is possible, the viewing-ready signal is output to the video / audio decoder 15. If the viewing is impossible, the viewing-ready signal is displayed when the number entered is coincident with the password registered in the flash memory Audio signal to the video / audio decoder 15, a flash memory 12 in which the password is registered, a high frequency (RF) signal input from the antenna, A channel unit 13 for tuning and QPSK-demodulating the signal, converting it into a digital signal and error-correcting the signal, and separating the digital signal from the channel unit 13 into a video signal and an audio signal And a decoding operation or a reading operation in accordance with a viewable signal or an unviewable signal from the microcomputer 11. The decoding operation is performed by a digital video signal and an audio signal inputted from the demultiplexer, Audio decoder 15 that decodes the video signal stored in the memory or decodes the video signal stored in the memory, and a digital / analog decoder 15, which is input from the demultiplexer 14 through the video / audio decoder 15 under the control of the microcomputer 11, A video encoder 17 for encoding the decoded digital video signal input from the video / audio decoder 15 in accordance with a television broadcasting scheme, and a memory 16 for storing the video / And an audio D / A converter 18 for converting the decoded audio signal inputted from the audio decoder 15 into an analog signal.

The operation and effect according to the present invention thus constructed will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 1, a smart card 1 is inserted into a smart card reader having a built-in high frequency generator of a digital satellite broadcast receiver 10 of a satellite broadcast receiving system, and a scrambled high frequency broadcast signal is descrambled And outputs a television signal to the television set 30 through a signal processing process such as tuning and demodulation.

Referring to FIG. 2, the digital satellite broadcast receiver 10 performs tuning and demodulation according to a predetermined method in the channel unit 13, converts the digital signal into a digital signal, corrects an error generated in the transmission process, The demultiplexer 14 demultiplexes the output signal of the channel unit 13 into an audio signal and a video signal, and outputs the audio signal and the video signal to the video / audio decoder 15.

The format of the transport stream received by the channel unit 13 will be described with reference to FIG. 3. Referring to FIG. 3, the transport stream includes a header and a payload, which are a series of 188- And a PID (Packet IDentifier: Packet Identifier), which indicates a packet that is a basis of MPEG-2 (MPEG stands for Motion Picture Experts Group (Moving Picture Experts Group)), is included in the header , And information included in the PID such as a movie and a degree of psychological deprivation of the program is included.

For example, information corresponding to the cardiac arrest rate included in the PID of the transport stream shown in FIG. 3 can be expressed using only one bit, and the cardiac arrest rate can be expressed using only two or more bits In the third operation, 1 bit is used. When the corresponding bit is 0, it indicates that minority viewing is possible. In the case of 1, it indicates that minority viewing is not possible.

The microcomputer 11 determines whether or not a minor is viewable by encapsulating information corresponding to a psychomotor rating in the PID among the transport stream of the signal through the channel unit 13 in the microcomputer 11, (15) outputs a viewable signal or an unviewable signal according to the determination result.

The video / audio decoder 15 selectively outputs one of a signal input from the demultiplexer 14 or a signal stored in the memory 16 in accordance with a control signal output from the microcomputer 11, If the control signal from the microcomputer 11 is a viewable signal, it is possible to perform a decoding operation by performing a decoding operation. On the other hand, if the control signal from the microcomputer 11 is an unedited signal, decoding is stopped. This is impossible.

According to the present invention as described above, in the broadcasting system of the digital satellite broadcasting system, a movie suspicion rating such as not being able to view a minor can be inserted in the PID of the transport stream and transmitted. In a digital satellite broadcast receiver, By allowing the user to select a password, it is possible to prevent a minor from watching a program that does not allow underage status.

The above description is only an explanation of one embodiment of the present invention, and the present invention can be variously modified and modified within the scope of its constitution.

Claims (1)

A digital satellite broadcast receiver 10 for receiving a digital broadcast signal from a broadcast satellite, a smart card 1 for controlling the operation of the digital satellite broadcast receiver 10, A descrambler 20 for descrambling a signal received by the digital satellite broadcast receiver 10, a digital processing unit 30 for performing signal processing such as tuning and demodulation on the descrambled signal, In a satellite broadcast receiving system, Audio decoder 15 from the channel unit 13 if it is impossible to view the child by using information corresponding to the cardiac arrest rate (PID) included in the PID (Packet IDentifier: packet identification code) of the transport stream. If the input number is in agreement with the password registered in the flash memory, and if the input number is not coincident with the password registered in the flash memory, the non-viewable signal is output to the video / audio decoder To the microcomputer (15); A flash memory 12 in which the password is registered; A channel unit 13 for tuning and QPSK demodulating a high frequency (RF) signal input from an antenna, converting the signal into a digital signal and correcting errors; A demultiplexer 14 for separating the digital signal from the channel unit 13 into a video signal and an audio signal, respectively; And performs a decoding operation or a reading operation based on a viewable signal or an unviewable signal from the microcomputer 11. The decoding operation decodes the digital video signal and the audio signal input from the demultiplexer, A video / audio decoder 15 for decoding the video signal; A memory 16 for sequentially storing digital video signals inputted from the demultiplexer 14 through the video / audio decoder 15 under the control of the microcomputer 11; A video encoder 17 for encoding the decoded digital video signal input from the video / audio decoder 15 according to a television broadcasting scheme; And And an audio D / A converter (18) for converting the decoded audio signal input from the video / audio decoder (15) into an analog signal.