KR19990056478A - How to output password of satellite broadcasting receiver - Google Patents

Abstract

The present invention relates to a password output method of a satellite broadcast receiver for outputting a password on a screen by manipulating a specific key when the user does not remember a password set for controlling the overall operation of the satellite broadcast receiver. To this end, the present invention, during the normal viewing mode of the satellite broadcast receiver, checks the input of the key signal for performing a specific command, if the key signal is input, the input key signal to output the password Detecting whether the key signal is for a key signal, and if the key signal is for outputting the password, reading the preset password and displaying the read password on a guide screen of a predetermined form. .

Description

How to output password of satellite broadcasting receiver

The present invention relates to a satellite broadcast receiver, and more particularly, to a password output method of a satellite broadcast receiver suitable for displaying a password according to a user's request when a password set in the satellite broadcast receiver is forgotten.

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.

In addition, various broadcasting programs provided from satellites include general programs and paid programs. If a user views a Euro program, user information and service usage information registered on the smart card of the satellite broadcasting receiver are connected to the subscriber station through a telephone line. By being sent to, billing for paid programs is automatically notified.

On the other hand, the general satellite broadcasting receiver is provided with a parental control function to limit the viewing of any user (for example, a minor) according to a program or channel, and the parental control menu screen used when setting the parental control function is specific. In order to be accessible only to the user, a password entry process is required.

That is, in order to set or release the parental control for any user, a parental control menu screen is displayed. When a user requests a parental control menu screen, a message for inputting a password is first displayed on the screen. The parental level can be set and released only when the password matches the preset password.

In the conventional satellite broadcasting receiver, if the user does not remember the password set by the user, there is a problem in that the parental level cannot be set or released, and accordingly, the receiver manufacturer needs to request A / S. Problems will arise.

Accordingly, the present invention is to solve the above-mentioned problems of the prior art, and when the user does not remember the password set in the satellite broadcast receiver at the same time by operating a certain key provided in the receiver, the preset password is displayed It is an object of the present invention to provide a password output method of a satellite broadcast receiver.

In order to achieve the above object, the present invention provides a broadcast signal for a plurality of satellite broadcast channels provided through a satellite, and in the satellite broadcast receiver having a predetermined password for controlling the overall operation of the system according to each user. A method of outputting a password, the method comprising: a first step of checking input of a key signal for performing a specific command during a normal viewing mode of the satellite broadcasting receiver; A second step of determining whether the input key signal is a key signal for outputting the password when the key signal is input; A third step of reading the preset password if the input key signal is a key signal for outputting the password; And a fourth step of displaying the read password number on a guide screen of a predetermined form.

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

2 is a flowchart showing a password output trap of a satellite broadcast receiver according to a preferred embodiment of the present invention.

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

105: key input unit 110: microcomputer

115: tuner and demodulator 120: MPEG decoder

125: video encoder 130: modem

135: smart card 140: memory

145: OSD unit 150: 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 password output method of a satellite broadcast receiver according to an exemplary embodiment of the present invention, and includes a key input unit 105, a microcomputer 110, a tuner, and a demodulator 115. ), An MPEG decoder 120, a video encoder 125, a modem 130, a smart card 135, a memory unit 140, an OSD unit 145, and an image synthesizer 150.

Referring to FIG. 1, the key input unit 105 is composed of key metrics on a remote controller or its own panel to generate a corresponding key signal by a user's operation and provide it to the microcomputer 110, and the microcomputer 110 provides a key. Each control signal for generating a corresponding function is generated based on a key signal from the input unit 105. For example, the user broadcast channel may be selected from the outside, including a microprocessor for controlling overall operation of the receiver. When a signal is input, a corresponding tuning control signal is generated and provided to the tuner and demodulator 115 to be described later.

The tuner and demodulator 115 tunes a broadcast channel selected by a user from a broadcast signal received through a broadcast signal receiver (i.e., a satellite reception antenna), not shown, based on a tuning control signal provided from the microcomputer 110. 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 next MPEG decoder 120.

On the other hand, in the MPEG decoder 120, based on the control signal provided from the microcomputer 110, the compressed and encoded audio signal and video signal of the broadcast channel provided from the tuner and demodulator 115 is restored to the original signal, The reconstructed digital broadcast video signal is provided to the next video encoder 125, and the reconstructed audio signal is provided to an audio signal processor (not shown).

The video encoder 125 converts the selected digital broadcast video signal provided by the MPEG decoder 120 to an NTSC or PAL analog video signal and then provides the image synthesizer 150.

Meanwhile, the modem 130 transmits data between the service provider and the mutual data through the switching line. For example, when a user watches a pay program, the microcomputer 110 receives user information registered in the smart card 135. The billing process for the program is performed by transmitting to the service provider.

The memory unit 140 stores various menu screen information for controlling the overall operation of the satellite broadcasting receiver and passwords for setting and releasing parental level, and the OSD unit 145 includes the tuner and demodulator ( The encoded various OSD data provided from 115 is restored to the original signal before encoding, and then configured as an OSD screen and provided to the image synthesizer 150.

Accordingly, the image synthesizing unit 150 transfers the analog satellite broadcasting signal output from the video encoder 125 to the display side, not shown, or omits the screen mixed with various menu screen data displayed through the OSD unit 145. To the display side.

In the satellite broadcasting receiver configured as described above, the remote controller may not be able to remember the password of the satellite broadcasting receiver for setting and releasing a parental level for a certain user while the password is stored in a predetermined area of the memory unit 140. Alternatively, when a specific key signal is input by operating the key input unit 105 configured at the front of the receiver, the microcomputer 110 transmits the password stored in the memory unit 140 based on the key signal through the OSD unit 145. Will print to the screen.

At this time, the key signal for outputting the password is configured by combining two or more keys so that the user can not operate by accident or accident. For example, the menu key for displaying various menu screens, the up direction key (↑) and the selection key used for moving a screen or a channel are simultaneously operated.

FIG. 2 is a flowchart illustrating a password output process of a satellite broadcast receiver according to an exemplary embodiment of the present invention. Hereinafter, the above-described process will be described in detail with reference to the accompanying drawings.

Any key for controlling the operation of the satellite broadcasting receiver during the normal viewing mode in which the overall operation of the satellite broadcasting receiver tunes the satellite broadcasting signal of the channel selected by the user and displays it on the screen through a predetermined signal processing process. When a signal is input from the key input unit 105 (step 203), the microcomputer 110 reads the input key signal and generates a control signal corresponding thereto to control the operation of the satellite broadcasting receiver (step 207).

If the input key signal is a key signal for outputting the password of the satellite broadcasting receiver (step 205), the microcomputer 110 reads the password stored in the predetermined area of the memory unit 140 (step 209, the OSD unit 145 is provided to the OSD unit 145, and the OSD unit 145 converts the password provided from the microcomputer 1110 into a guide screen of a predetermined form and displays it on the screen (step 211). You will be able to recognize the password you do not remember.

If a predetermined time (for example, 3 seconds) elapses while the password of the satellite broadcasting receiver is displayed on the screen through the above-described process (step 213), the microcomputer 110 displays the OSD unit 145. ), The password screen displayed on the current screen is automatically turned off (step 215), and the overall operation of the satellite broadcast receiver is switched to the normal viewing mode as in the initial step 201 described above. (Step 217).

As a result, the microcomputer 110 pre-stores a command for outputting the password set in the satellite broadcasting receiver and if a command for outputting the password from the key input unit 105 is input, the password set in the memory unit 140. Will be displayed as the OSD screen.

As described above, according to the present invention, when the user does not remember the password set in the satellite broadcasting receiver, the password set in the receiver is output to the screen by manipulating a predetermined key, thereby efficiently maintaining the password. There is an effect that can be, accordingly has the effect of improving the convenience of the user.

Claims (3)

A method for receiving broadcast signals for a plurality of satellite broadcast channels provided through a satellite and outputting the password in a satellite broadcast receiver having a preset password for controlling the overall operation of the system according to each user, A first step of checking an input of a key signal for performing a specific command during the normal viewing mode of the satellite broadcasting receiver; A second step of determining whether the input key signal is a key signal for outputting the password when the key signal is input; A third step of reading the preset password if the input key signal is a key signal for outputting the password; And displaying a read password number on a guide screen of a predetermined form. The method of claim 1, wherein the key signal for outputting the password is input by operating at least two keys simultaneously. The secret of the satellite broadcasting receiver of claim 1, further comprising: automatically turning off the password guidance screen when a predetermined time elapses while the password guidance screen is displayed. Number output method.