KR20000061298A - An audition prevention method of specification channel in television receiver - Google Patents

Abstract

PURPOSE: A method for preventing children from televiewing specific programs on a TV set is provided so that the children can not watch adult programs by setting or canceling a child lock function with respect to users' request. CONSTITUTION: A micro computer performs an initializing operation when power of a TV set is turned on, and identifies a channel or an audio-visual(AV) mode before turning off the power. Whether the child lock is set up on the channel or the AV mode is decided. If not, a broadcast signal or an AV signal before turning off the power is inputted to normally output the signal, and a key signal inputting routine is performed. If the child lock is set up, image/sound signals are muted. An on-screen display(OSD) is controlled to output an OSD screen for inputting a password. A password is inputted through a key input circuit. A password inputting process and the inputted password is compared with the preset password. If the two passwords are equal, the OSD and a sound signal muting unit are controlled to normally output the image/the sound signals.

Description

An audition prevention method of specification channel in television receiver

The present invention is directed to watching a specific channel of a television receiver which prevents children from watching adult broadcast programs of a specific channel broadcasted by a broadcasting station or pornographic or adult video programs played by a video player such as a video cassette tape recorder and a laser disk player. It relates to a prevention method.

Generally, when children watch pornographic programs or adult video programs, they hurt their emotions.

Therefore, video rental shops are prohibited from renting obscene video programs or adult video programs to young children.

However, many children are exposed to pornographic video programs or adult video programs without permission.

Therefore, the video player for playing and outputting video tapes and optical discs has a child lock function. When the child lock function is operated, the video player does not play or output pornographic video programs or adult video programs. Do not let it.

However, having the child lock function in the video reproducing apparatus as described above can only protect young children from watching pornographic video programs or adult video programs, and use them in adult programs broadcasted by broadcasting stations or adults in cable television broadcast signals. The program could not be prevented from watching.

Accordingly, an object of the present invention is to provide a method for preventing viewing of a specific channel of a television receiver, which prevents children from watching a program of a specific channel of the television receiver.

According to the method for preventing viewing of a specific channel of a television receiver of the present invention for achieving the above object, when a channel switching key or an AV mode key is input, a child is switched to the channel or AV mode after switching to the channel switching or AV mode. If the child lock is not set, it judges whether the lock is set and outputs the video and audio signal of the channel or AV mode which is switched, and if the child lock is set, the video and audio signal is cut off and a password is inputted. Judges whether the input password matches the set password and outputs the video signal and audio signal if it matches, and enables or disables child lock when the child lock key is input. If you select Lock on or off, you are asked to enter your password. Characterized in that to enable or disable the child lock, select if you want to match the password, set password.

1 is a schematic view showing the configuration of a television receiver to which the parental control method of the present invention is applied;

2 is a signal flow diagram illustrating a viewing prevention method of the present invention;

3 is a signal flow diagram illustrating the key signal input routine of FIG. 2.

* Description of the symbols for the main parts of the drawings *

10: microcomputer 12: key input unit

14 antenna 16 tuner unit

18: intermediate frequency amplifier 20, 20A: switching unit

22: video signal processor 24: OSD unit

26: voice signal processing unit 28: voice signal muting unit

VIN: External Video Signal AIN: External Audio Signal

Hereinafter, a method for preventing viewing of a specific channel of a television receiver of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view showing the configuration of a television receiver to which the parental control method of the present invention is applied.

Here, reference numeral 10 denotes a microcomputer that controls the operation of the television receiver and controls the children to watch by blocking the video signal and the audio signal of a specific channel by performing the operation according to the viewing prevention method of the present invention. A key input unit for inputting an operation command according to a user's operation to the microcomputer 10.

Reference numeral 14 is an antenna for receiving a television broadcast signal, and reference numeral 16 is a tuner unit for receiving a broadcast signal of a predetermined channel under the control of the microcomputer 10 among the reception signals of the antenna 14.

Reference numeral 18 is an intermediate frequency amplifier for amplifying a broadcast signal of a predetermined channel received by the tuner 144 and outputting the video signal and the audio signal separately. Reference numerals 20 and 20A are output from the intermediate frequency amplifier 18. The switching unit for selectively outputting the video signal and audio signal, the external video signal (VIN) and the external audio signal (AIN) under the control of the microcomputer 10.

Reference numeral 22 denotes an image signal processing unit for processing an image signal selectively output by the switching unit 20, and reference numeral 24 generates the On Screen Display (OSD) signal under control of the microcomputer 10 to generate the image signal. The OSD is inserted into an image signal output by the signal processor 22 and outputted, or outputs only an OSD signal.

Reference numeral 26 denotes a voice signal processor for processing and outputting a voice signal selectively output by the switching unit 20A, and reference numeral 28 controls a voice signal output by the voice signal processor 26. Audio signal muting section to mute accordingly.

When the television receiver configured as described above inputs a channel for receiving a broadcast signal by operating the key input unit 12 while the power is turned on, the microcomputer 10 operates the tuner unit 14 according to the input channel signal. By controlling, the tuner 14 tunes and outputs a broadcast signal of a channel selected by a user among broadcast signals received by the antenna 14.

The broadcast signal output by the tuner unit 16 is amplified by the intermediate frequency amplifier 18, and is separated into a video signal and an audio signal and output.

At this time, when the user operates the key input unit 12 to instruct the reception of a predetermined channel, the microcomputer 10 controls the switching units 20 and 20A so that the movable terminal has the other high terminal b1 and b2. To each).

Then, the video signal separated from the intermediate frequency amplifier 18 is output through the switching unit 20, processed by the image signal processor 22, and then outputted through the OSD unit 24. The audio signal separated and output by 18 is processed and output by the voice signal processing unit 22 through the switching unit 20A.

In addition, when the user selects the AV (Audio Video) mode by operating the key input unit 12, the microcomputer 10 controls the switching units 20 and 20A so that the movable terminal has one high terminal a1 and a2. The external video signal VIN and the external audio signal AIN, which are input from an external device such as a video cassette tape recorder and a laser disk player, are switched by the switching unit 20 ( 20A) are output through the video signal processing unit 22, the OSD unit 24, and the audio signal processing unit 26, respectively.

The OSD unit 24 generates an OSD signal under the control of the microcomputer 10, and outputs the OSD signal by mixing the generated OSD signal with the image signal output from the image signal processor 22 or by the image signal processor 22. Cut off the video signal outputted from the video signal), and output only the OSD signal to display on the screen. The audio signal muting unit 28 controls the audio signal output from the audio signal processing unit 26 under the control of the microcomputer 10. Mute to prevent output.

On the other hand, Figure 2 is a signal flow diagram showing a viewing prevention method of the present invention.

As shown in FIG. 10, when the television receiver is powered on in step S10, the microcomputer 10 performs an initialization operation in step S12, and the channel or AV mode before turning off the power in step S14. Check it.

That is, when a television broadcast signal of a predetermined channel is watched before the television receiver is turned off, the predetermined channel is checked, and when the external video signal VIN and the external audio signal AIN are watched in the AV mode, Make sure you are in mode.

In the next step S16, it is determined whether the child lock is set in the channel or the AV mode before the power is turned off, and if the child lock is not set, the broadcast signal or the AV signal of the channel before the power is turned off in the step S18. After inputting so as to be normally output, the key signal input routine is performed in step S20.

That is, the OSD unit 24 outputs the video signal output from the video signal processing unit 22 to normal, and does not operate the audio signal muting unit 28 so that the audio signal output from the audio signal processing unit 26 is normal. Causes output

When the child lock is set in the step S16, the video signal and the audio signal are muted in step S22 so that the child cannot be viewed.

That is, the OSD unit 24 blocks the video signal output from the video signal processing unit 22, and the audio signal muting unit 28 operates to mute the audio signal output from the audio signal processing unit 26.

In the next step (S24) to control the OSD unit 24 to output the OSD screen to enter a password, in step S26 inputs the password entered by the user through the key input unit 12, in step S28 Determine whether the input of the password is completed.

When the input of the password is completed in step S28, it is determined whether the password input in step S30 matches the set password, and if the password matches, the OSD unit 24 and the voice signal in step S32. After controlling the muting unit 28 to output the video signal and the audio signal to normal, the key signal input routine is performed in step S34.

The key signal input routine determines whether a key signal is input from the key input unit 12 in step S40 as shown in FIG. 3, and when the key signal is input, the key signal input in step S42 is inputted. It is determined whether it is a channel switching key, and in step S46, the AV mode key location is checked, and in step S54, it is determined whether it is a child lock key.

When the input of the channel switching key is determined in the step S42, the microcomputer 10 switches the channel in the step S44, and when the input of the AV mode key is determined in the step S46. (I) switch to the AV mode, that is, the switch unit 20 or 20A selectively switches the external video signal VIN and the external audio signal AIN, and child lock is applied to the channel or AV mode switched in step S50. Determine if it is set.

When it is determined in step S50 that the child lock setting is determined, a password is input by performing the operation from step S22, and when the input password matches the set password, the video and audio signals are normally output. When the child lock is not set in step S50, the control unit outputs the video signal and the audio signal of the current channel or the AV mode to normal in step S52.

On the other hand, while the user is watching a broadcast signal of a predetermined channel or the external video signal (VIN) and the external audio signal (AIN) in the AV mode, the child lock is set for the channel or AV mode that the viewing or When the child lock key of the key input unit 12 is pressed to release the child lock, the microcomputer 10 determines the input of the child lock key in step S54, and controls the OSD unit 24 in step S56. Outputs the child lock setting / release screen, and moves the cursor to the child lock setting and child lock release position as the user inputs the direction key of the key input unit 12 in step S58 (S60). ), It is determined whether the completion key is input.

When the completion key is input in step S60, in step S62, the OSD unit 24 is controlled to output an OSD screen for inputting a password, and in step S64, a user inputs a key through the key input unit 12. A password to be input is input and it is determined whether the input of the password is completed in step S66.

When the input of the password is completed in step S66, it is determined whether the password input in step S68 matches the set password, and when the password matches, in step S70, step S56 and step S58. The child lock is set or the child lock is released for the channel or the AV mode currently receiving the broadcast signal according to the cursor position in.

As described above, according to the present invention, child lock is set or released according to a user's setting of a predetermined channel and AV mode of a television receiver, so that external video and audio signals input from a channel carrying an adult program or an external video reproducing apparatus may be used. You can protect young children from indecent or adult programming by preventing them from watching.

Claims (2)

A first step of determining whether a child lock is set in the switched channel or the AV mode after switching to the channel switching or the AV mode when the channel switching key or the AV mode key is input; When the child lock is not set in the first step, the video and audio signals of the channel or the AV mode which are switched are normally output, and when the child lock is set, the video and audio signals are cut off and the password is requested and inputted. Second process; A third step of judging whether or not the password inputted in the second step is identical to the set password and outputting the video signal and the audio signal normally when they match; A fourth process of selecting setting or releasing the child lock when the child lock key is input; And When the child lock is selected or released in the fourth process, a fifth process of requesting input of a password and setting or releasing the child lock selected in the fourth process when the input password coincides with the set password. Method of preventing viewing of a specific channel of a television receiver, characterized in that made. The method of claim 1, A sixth step of checking the reception channel or the AV mode before turning off the power and determining whether the child lock is set when the power is turned on; A seventh step of blocking the video and audio signals from being output when the child lock is set in the sixth step and requesting input of a password; An eighth step of judging whether the password inputted in the seventh step matches the set password and outputting the video and audio signals normally when they match; And And a ninth step of allowing video and audio signals to be normally output when the child lock is not set in the eighth step and determining the input of the key signal.