KR19980075510A - How to restrict and release viewing of your optical disc player - Google Patents

Abstract

The present invention relates to a method of limiting and releasing viewing of an optical disc player capable of playing back an image. In the conventional parental control method for preventing harmful images from children and adolescents, the present invention can view other portions except for a portion where a specific image is recorded. In order to solve the conventional problem, by setting the start point and the end point of the parental control section so that only a specific person who inputs a password can watch the parental control section, the video except for the parental control section in which the harmful video is recorded is a specific audience. You can also watch.

Description

How to restrict and release viewing of your optical disc player

The present invention relates to a method for restricting viewing of an optical disk player capable of playing an image, and more particularly, by setting or canceling a section of an optical disk on which specific image information is recorded to be restricted from playing, predetermined image information. The present invention relates to a method for restricting and releasing viewing of an optical disc player, which can be viewed only by a specific person (who knows the password).

In general, an optical disc player capable of playing video includes a laser disk player (LDP), a video compact disk player (VCDP), and the like. Compression techniques are used to provide viewers with video and audio by playing back optical discs with video and audio data of several gigabytes (GB).

As described above, the optical disc player has a higher signal-to-noise ratio than conventional video / audio playback devices, so that signals can be reproduced with better image quality / sound quality, no noise due to irregular playback and modulation, and distortion is very low. In addition to the lack of ghost (virtual), random access (Random Access) is possible, and various advantages such as providing a variety of features, such as the accompaniment feature is rapidly developing and widely spread.

With the widespread use of optical disc players, children and teenagers in each home can easily access the optical disc player.

However, conventional optical disc players can be played back regardless of the user or the images recorded on the optical disc, so that children and adolescents may be exposed to harmful images (e.g., excessive sexual descriptions, brutal violence scenes, etc.) resulting in emotional impairment. There was a problem that could be.

In order to solve such a problem, in the related art, the entirety of an optical disc classified according to the viewer's age is limited by viewing a password.

However, in the conventional method, because of the harmful part of the image, the viewing of the whole optical disc was restricted, so that the image beneficial to children and adolescents could not be viewed.

The present invention has been made to solve the above-described problems of the prior art, an object of the present invention is to set a predetermined section in which a specific video is recorded as a viewing restriction section so that only a user who knows the password can watch it. The present invention provides a method for restricting and releasing viewing of an optical disc player.

In order to achieve the above object, in the present invention, in the method of limiting and releasing the viewing of an optical disc player for limiting the viewing of information data for a certain track section among information data recorded on the disc, the information data for which viewing is required is recorded. A first step of setting a parental control track section; a second step of requesting input of a password when the parental control section appears while the disc having the parental control section is playing; and a password is input in the second step. And a third step of performing playback for the parental control section.

1 is a block diagram showing hardware for implementing a method for limiting and releasing viewing of an optical disc player according to the present invention;

2A and 2B are flowcharts showing a viewing restriction and release method of an optical disc player according to the present invention;

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

100: key input unit 200: microcomputer

300: counter 400: memory

500: OSD processing unit 600: Servo unit

700: optical pickup unit

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a block diagram showing hardware for implementing a method for limiting and releasing viewing of an optical disc player according to an exemplary embodiment of the present invention. The key input unit 100, the microcomputer 200, the counter 300, The memory 400, the OSD processing unit 500, the servo unit 600, and the optical pickup unit 700 are included.

Referring to the function for each block of the member shown in FIG. Generates a key signal.

The microcomputer 200 generates a control signal to each component member so that the optical disc player can perform a predetermined operation in response to each key signal input from the key input unit.

The counter 300 counts time by the count control signal of the microcomputer 200.

The memory 400 stores a password, a unique number of a disc, unique ID and time data of a start point and an end point of a parental control section, a password input wait time, and the like.

The OSD processing unit 500 outputs data drawn from the memory 130 as predetermined character information on the OSD screen under the control of the microcomputer 120.

The servo unit 600 moves the optical pickup unit, which will be described later, to a predetermined section of the disc under the control of the microcomputer 200.

The optical pickup unit 700 converts an optical signal into a digital signal and outputs the digital signal in accordance with the presence or absence of a pit recorded on the disk surface.

Hereinafter, an operation process of the volume display device made of the above-described constituent members will be described in detail.

FIG. 2A is a flowchart illustrating a method for setting a parental control section of an optical disk player according to a preferred embodiment of the present invention, and FIG. 2B illustrates a method for canceling parental control of an optical disk player according to a preferred embodiment of the present invention. It is a flow chart.

First, referring to FIG. 2A, a method for setting a parental control section is described. In the optical disc player, when a disc is mounted and played back (S 21), viewing is restricted from the key input unit 100 by a user's key operation. When the key signal is generated (S 22), the microcomputer 200 stores the unique ID and time data corresponding to the current playback position in an area of the memory 400 in which the unique number of the loaded disc is stored (S 23).

Subsequently, when the restriction end key signal is generated from the key input unit 100 by the user's key operation while the playback is in progress (S 24), the microcomputer 200 is loaded with a unique ID and time data corresponding to the current playback position. The unique number and the unique ID and time data in S 23 are stored in the area of the memory 400 (S25).

At this time, the unique ID and time data stored in S 23 corresponds to the start point of the parental control section, and the unique ID and time data stored in S 25 may correspond to the end point of the parental control section.

As described above, the parental level is set by the user's key operation.

A method of releasing parental control of the optical disc player will now be described with reference to FIG. 2B.

First, when the user mounts the disc in the optical disc player to play the optical disc on which the image is recorded (S 1), the microcomputer 200 sets the TOC (Table Of) in the load-in section of the disc. Content) is read and the unique number of the disk is registered and stored in the memory 400 (S 2).

Subsequently, when the user presses a play key provided in the key input unit 100 to play the disc mounted in the optical disc player 200 in S 1, the key input unit 100 generates a play key signal to generate a microcomputer 200. Provided to (S 3).

The microcomputer 200 recognizing the playback key signal at S 3 searches for TOC information data read out at S 2 and stored in the memory 400 to search whether there is data for a unique number of the disk (S 4).

As a result of the determination in S 4, if the TOC information data stored in the memory 400 includes data about the unique number of the disc, the search for the unique number of the searched disc and the data about the parental control section is stored in the memory 400. If there is no data on the unique number of the disc, it is determined that there is no viewing restriction section and a control signal is generated to play the mounted disc (S 5).

As a result of S5, if there is a parental control section according to the unique number of the loaded disc, the original data of the searched disc and the time data of the start point and end point of the parental control section according to the unique number are transferred to the internal memory of the microcomputer 200. If the data is fetched (S6), and there is no data tuck on the parental control section according to the unique number of the mounted disk, a control signal is generated to reproduce the mounted disk.

On the other hand, in the state in which the time data of the start point and the end point of the parental level in S 6 is stored in the internal memory of the microcomputer 200, the microcomputer 200 generates a control signal so that the mounted disc is reproduced, and simultaneously the counter 300 In step S7, a count control signal is generated to count the time of reproduction.

Thereafter, the microcomputer 200 repeats S 7 until the time counted at S 7 and the time data of the starting point stored in the internal memory at S 6 are the same (S 8), and the time counted at S 7 during S 8 and If the time data of the starting point stored in the internal memory is the same in S 6, the microcomputer 200 controls the playback to stop, and then extracts preset data from the memory 400 to output a message for confirming the password. After generating a control signal for outputting the OSD, the control signal is generated so that the counter 300 can count.

At this time, the OSD processing unit 500, by the control signal generated by the microcomputer 200, the data extracted from the memory 400 on the OSD screen by the predetermined character information (for example, a message as shown in Table 1 below) (S 9).

TABLE 1

In addition, by the control signal generated from the microcomputer 200 at S 8 simultaneously with S 9, the counter 300 counters the time for displaying the OSD screen (S 10).

Thereafter, the microcomputer 200 detects whether a key signal is input from the key input unit 100 (S 11), and when the key signal is input from the key input unit 100, the microcomputer 200 determines that the password matches the password (S11). 14), if the key signal is not input, the time counted in S 10 is compared with the password input waiting time preset in the memory 400 (S 12).

As a result of the comparison in S 12, if the time counted in S 10 is less than the preset password input wait time preset in the memory 400, S 10 is repeated, and the time counted in S 10 is stored in the memory 400. When the preset coincidence time with the input password is input, the microcomputer 200 generates a servo control signal to the servo unit 600 to move the position of the optical pickup unit.

Subsequently, the servo unit 600 moves the optical pickup unit 700 to the end point of the parental control section by the servo control signal from the microcomputer 200. (S 13)

In S 13 and S 14, the microcomputer 200 generates a control signal for disc reproduction, and the optical pickup unit 700 reads digital data from a disc mounted for disc reproduction.

As described above, according to the present invention, other portions of the disc can be played back except for the viewing section where only a person who knows the password can watch. Can be.

Claims (4)

A method of limiting and releasing viewing of an optical disc player for restricting viewing of information data for a predetermined track section among information data recorded on a disc, A first step of setting a parental control track section in which the parental control information data is recorded; A second step of requesting input of a password if the parental control section appears while the disc having the parental control track section is playing; And a third step of reproducing the parental control section when a password is input in the second step. 2. The method of claim 1, wherein the first step comprises: setting and storing a unique number for indicating that the parental control track section is a set disk; And storing time data on a track corresponding to a start point and an end point of the parental control section. 3. The method of claim 2, wherein the second step comprises: determining whether a viewing restriction section is a disc based on a unique number of the disc; If the disc is a disc having parental control, searching for a start point of the parental control section while playing the disc; And stopping the playback and requesting a password if the start point of the parental control section and the current playback position coincide with each other. The method of claim 1, wherein the third step comprises: searching for whether the password is input within a preset time; And playing the parental control section when a correct password is input within a preset time period, and jumping and playing the parental control section when a password is not input or a wrong password is input within the preset time. How to limit and disable viewing of optical disc players.