KR20050119353A - Device and method for blocking seeing and hearing on the optical disk player - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a parental control apparatus and a method of the optical disc reproducing apparatus, and more particularly, to an optical pickup unit for detecting a signal recorded on an optical disc, and to converting a signal detected by the optical pickup unit into a digital signal and converting the original signal into compressed data. The restored DSP, the MPEG processor which decodes the recovered data of the DSP and outputs the decompressed video data and audio data, and compares the disc label name of the optical disk with the preset disc label name in the restored data of the DSP. If the two disc label names are the same, it includes a microcomputer for decoding and outputting the recovered data of the DSP through the MPEG processing unit. Therefore, the present invention can reliably control the viewing restriction on the adult video image of the optical disc recorded in the recording device such as a DVD-RW.

Description

Parental control device and method thereof for optical disc player {DEVICE AND METHOD FOR BLOCKING SEEING AND HEARING ON THE OPTICAL DISK PLAYER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc reproducing technique, and more particularly, to an apparatus and method for viewing and limiting an optical disc recorded by a digital video disc read write (DVD-RW) in an optical disc reproducing apparatus.

At present, broadcasting rating system for each age is implemented, and in television, a parental control technology that uses a set-top box or a separate chip to prevent children or adolescents from technically watching an adult program is widely used.

On the other hand, even in optical disc playback devices such as DVDs, in order to limit the viewing of children's or youth's titles to adult video images, when a title is played, a password is input and compared with a preset password, The image was played back.

1 is a block diagram showing a general optical disc player. Referring to FIG. 1, the optical disc reproducing apparatus includes an optical pickup unit 12 for detecting a signal recorded from the optical disc 10, an RF amplifier unit 14 for amplifying a signal detected by the optical pickup unit 12, and , A drive unit 18 for driving the spindle motor 22 of the optical disc 10 and the sled motor 20 of the optical pickup unit 12, and a servo for controlling the drive unit 18 of each motor 20, 22. A digital signal processor (DSP) 26 which converts the amplified signal of the RF amplification unit 14 into a digital signal and restores the original MPEG compressed data, and MPEG data of the DSP 26 to MPEG. The MPEG processor 28 outputs the decompressed video data and audio data by decoding according to the decompression algorithm, the microcomputer 30 for total control of internal components, and the OSD (On Screen Display) screen to generate video data. OSD block 32 to synthesize. Here, the reference numeral 24 denotes a key input unit to which a key signal of an instrument panel is input or a remote control key signal is input. The memory 34 stores video and audio data decoded by the MPEG processing unit 28, and a preset parental control password.

2 is a flowchart showing a parental control method in a general optical disc player. 1 and 2, the optical disc player having the above configuration restricts viewing of an optical disc on which an adult video image is recorded as follows.

First, when a key signal for selecting a regeneration mode of the optical disc 10 is input through the key input unit 24, the microcomputer 30 enters the regeneration mode to operate the optical pickup unit 12 and the RF amplification unit 14. The signal recorded on the optical disc 10 is picked up, amplified to a predetermined size, and then controlled to be converted into a digital signal through the DSP 26 (S10).

The microcomputer 30 detects a table of contents (TOC) from the digital signal of the DSP 26, and if the viewing grade information in the index signal of the TOC is adult viewing restriction information, the OSD of the password input request through the OSD block 32. Generate and output the character data (for example, 'Please enter your password') (S12).

The microcomputer 30 determines whether a password is input through the key input unit 24, and compares the input password with the reference password stored in the memory 34 when the password is input. (S14 to S16)

The microcomputer 30 determines whether the input password and the reference password stored in the memory 34 match each other (S18).

As a result of the determination in S18, when the two passwords match, the microcomputer 30 controls the servo unit 16 and the driving unit 18 to position the optical pickup unit 12 on a specific track of the optical disc 10, thereby providing the slave motor 20. Drive the spindle motor 22 to rotate the optical pickup 12 at a constant speed. As a result, the optical pickup unit 12 picks up the signal recorded on the optical disc 10, the RF amplifier unit 14 amplifies the picked up signal to a predetermined size, and the DSP 26 converts the amplified signal into a digital signal. Convert and restore the original MPEG compressed data. The MPEG processor 28 decodes the MPEG data of the DSP 26 according to the MPEG decompression algorithm and outputs (reproduces) the decompressed video data and audio data of the corresponding viewing grade.

However, if the inputted password and the reference password stored in the memory 34 do not coincide with each other as a result of the S18 determination, the microcomputer 30 uses the OSD block 32 to display the OSD text data of the error indication (for example, the 'password'). Is invalid ') and outputs it (S22).

However, in the above-described parental control method of the optical disc reproducing apparatus, when the parental level information in the index signal of the TOC in the optical disc is adult parental control information, the adult video image recorded on the optical disc is stopped or playback is stopped according to the password comparison result. do.

Recently, with the spread of recording devices such as DVD-RW, data such as various videos or audios are recorded on optical discs. If data is recorded on optical discs in such recording devices, such as DVD-RW, viewing is restricted on optical discs. No rating information is inserted. Therefore, in the conventional optical disc reproducing apparatus, viewing of an adult video image by a password can no longer be restricted for an optical disc in which the rating information in the TOC of the optical disc is not inserted.

An object of the present invention is to compare the preset disc label name and the disc label name of the corresponding optical disc in the case of an optical disc without viewing rating information to solve the problems of the prior art as described above, and if the two disc label names are the same The present invention provides a method and method for restricting viewing in an optical disc reproducing apparatus that can reliably control viewing restrictions on an adult video image of an optical disc recorded in a recording apparatus such as a DVD-RW by reproducing a video image recorded in the recording apparatus.

In order to achieve the above object, the present invention provides an apparatus for reproducing an optical disc, comprising: an optical pickup unit for detecting a signal recorded on the optical disc; and a DSP for converting a signal detected by the optical pickup unit into a digital signal and restoring the original compressed data. And an MPEG processor which decodes the recovered data of the DSP to output decompressed video data and audio data, and compares the two disk labels by comparing whether the disk label name of the optical disk is identical to the preset disk label name in the restored data of the DSP. If the name is the same, it includes a microcomputer for decoding and outputting the restored data of the DSP through the MPEG processing unit.

In order to achieve the above object, the method of the present invention is a control method in an optical disc reproducing apparatus, the method comprising: determining whether an optical disc is an optical disc on which an official title is recorded or an optical disc on which arbitrary data is recorded by a recording apparatus in a reproducing mode of the optical disc; And comparing the disc label name of the optical disc with the preset disc label name by detecting the disc label name in the digital signal of the DSP in case of the optical disc on which the arbitrary data is recorded. And decoding the restored data of the DSP through the MPEG processing unit when the preset disc label names are the same.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

3 is a block diagram showing a parental control apparatus in the optical disk player according to the present invention. Referring to Fig. 3, the parental control apparatus of the optical disk reproducing apparatus of the present invention amplifies an optical pickup section 102 for detecting a signal recorded from the optical disk 100 and a signal detected by the optical pickup section 102. The RF amplifier 104, the drive unit 108 for driving the spindle motor 112 of the optical disc 100 and the sled motor 110 of the optical pickup unit 102, and the respective motors 110, 112 The servo unit 106 that controls the drive unit 18, the DSP 116 which converts the amplified signal of the RF amplifier 104 into a digital signal and restores the original MPEG compressed data, and the MPEG of the DSP 116. MPEG processing unit 118 for decoding the data according to the MPEG decompression algorithm and outputting the decompressed video data and audio data, a microcomputer 120 for overall control of internal components, and generating an OSD screen to synthesize the video data. OSD block 122 is included. Here, the critical reference numeral 114 is a key input unit to which a key signal of an instrument panel is input or a remote control key signal is input. The memory 124 stores video and audio data decoded by the MPEG processing unit 118, a preset parental control password, and a preset disc label name according to the present invention.

The parental control device of the optical disk player according to the present invention configured as described above compares two disks by comparing whether the disk label name in the restoration signal of the DSP 116 is identical to the preset disk label name stored in the memory 124 in the microcomputer 120. If the label names are the same, the reconstruction signal of the DSP 116 is decoded and output (reproduced) by the MPEG processing unit 118. If the disc label name in the restoration signal of the DSP 116 is not the same as the preset disc label name stored in the memory 124, the microcomputer 120 controls to no longer reproduce the signal recorded on the optical disc 100. .

4 is a flowchart showing a parental control method in the optical disc reproducing apparatus according to the present invention. 3 and 4, the optical disc player having the above configuration restricts viewing of the optical disc on which an adult video image is recorded as follows.

First, when a key signal for selecting a regeneration mode of the optical disc 100 is input through the key input unit 114, the microcomputer 120 enters the regeneration mode through the optical pickup unit 102 and the RF amplifier 104. The signal recorded on the optical disc 100 is picked up and amplified to a predetermined size and then controlled to be converted into a digital signal through the DSP 116. (S100)

Then, the microcomputer 120 determines whether the optical disc 100 reading the recording signal through the optical pickup unit 102 is an optical disc on which a formal title is recorded or an optical disc on which arbitrary data is recorded by a DVD-RW recording apparatus or the like. (S102) That is, the microcomputer 120 determines whether the viewing grade information in the index signal of the TOC is detected from the digital signal of the DSP 116, and determines that there is the viewing grade information as the optical disc of the official title. The optical disc recorded by the RW recording apparatus or the like is discriminated.

As a result of the determination in S102, when the optical disc does not have the viewing grade information in the index signal of the TOC, the microcomputer 120 detects the disc label name in the TOC from the digital signal of the DSP 116. (S104)

The microcomputer 120 compares the detected disk label name of the optical disk 100 with a preset disk label name stored in the memory 124. (S106)

As a result of S106 comparison, when the disc label name of the optical disc 100 and the preset disc label name stored in the memory 124 are the same, the microcomputer 120 places the optical pickup unit 102 on a specific track of the optical disc 100. The servo unit 106 and the driver 108 are controlled to drive the slave motor 110 and the spindle motor 112 to rotate the optical pickup unit 102 at a constant speed. Then, the optical pickup unit 102 picks up the signal recorded on the optical disc 100, the RF amplifier unit 104 amplifies the picked up signal to a predetermined size, and the DSP 116 converts the amplified signal into a digital signal. Restore the original MPEG compressed data. The MPEG processor 118 decodes the MPEG data of the DSP 116 according to the MPEG decompression algorithm, and outputs (reproduces) the decompressed video and audio data of the corresponding viewing grade.

However, as a result of comparing S106, when the disc label name of the optical disc 100 and the preset disc label name stored in the memory 124 are the same, the microcomputer 120 uses the OSD block 122 to display the OSD character data of the password input request. For example, create a 'Please enter your password') and output it (S110).

The microcomputer 120 determines whether a password is input through the key input unit 114, and compares the input password with the reference password stored in the memory 124 when the password is input. It is determined whether the standard passwords stored at 124 coincide with each other. (S112 to S114)

As a result of S114 determination, if the two passwords match, the microcomputer 120 enters the step S108 to control the servo unit 106 and the driving unit 108 to position the optical pickup unit 102 on a specific track of the optical disc 100. The optical pickup unit 102 is rotated at a constant speed by driving the slave motor 110 and the spindle motor 112. Accordingly, the optical pickup unit 102 picks up the signal recorded on the optical disc 100, the RF amplifier 104 amplifies the picked up signal to a predetermined size, and the DSP 116 converts the amplified signal into a digital signal. The MPEG processor 118 decodes the MPEG data of the DSP 116 according to the MPEG decompression algorithm and outputs (plays) the decompressed video and audio data of the corresponding viewing grade. do.

If it is determined that the input password and the reference password stored in the memory do not coincide with each other, the microcomputer 120 uses the OSD block 122 to display the OSD character data of the error indication (for example, 'The password is incorrect'). ') Is generated and output. (S116)

On the other hand, the present invention is not limited to the above-described embodiment, various modifications are possible by those skilled in the art within the spirit and scope of the present invention described in the claims to be described later.

As described above, the present invention compares a preset disc label name with a disc label name of the corresponding optical disc in the case of an optical disc without viewing grade information, and reproduces a video image recorded on the optical disc when the two disc label names are the same. It is possible to reliably control the viewing restriction on the adult video image of the optical disc recorded in the recording device such as a DVD-RW.

1 is a block diagram showing a general optical disc player;

2 is a flowchart showing a parental control method in a general optical disc player;

3 is a block diagram showing a parental control apparatus in the optical disk player according to the present invention;

4 is a flowchart showing a parental control method in an optical disc reproducing apparatus according to the present invention;

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

100: optical disk 102: optical pickup

104: RF amplifier 106: servo unit

108: driving unit 114: key input unit

116 DSP 118 MPEG processing unit

120: micom 122: OSD block

124: memory

Claims (4)

An apparatus for playing an optical disc, An optical pickup unit for detecting a signal recorded on the optical disc; A DSP for converting the signal detected by the optical pickup unit into a digital signal and restoring the original compressed data; An MPEG processor for decoding the recovered data of the DSP and outputting decompressed video data and audio data; Compares the disc label name of the optical disc with a preset disc label name in the restored data of the DSP, and if the two disc label names are the same, a microcomputer for decoding and outputting the restored data of the DSP through the MPEG processing unit; A parental control device in an optical disk player. The method of claim 1, The microcomputer compares the input password with the reference password if the disk label name in the restored data of the DSP is not the same as the preset disk label name. If the two passwords match, the micom restored the DSP. And decoding the data through the MPEG processing unit, and otherwise controlling the restored data of the DSP not to be decoded through the MPEG processing unit. As a control method in an optical disk player, Determining whether the optical disc is an optical disc on which a formal title has been recorded or an optical disc on which arbitrary data is recorded by a recording device in a reproduction mode of the optical disc; Detecting a disc label name from a digital signal of a DSP when the arbitrary data is recorded, and comparing the disc label name of the optical disc with a preset disc label name; And comparing the disc label name of the optical disc with the preset disc label name to decode the restored data of the DSP through an MPEG processing unit. The method of claim 3, wherein Comparing the input password with the reference password if the disc label name of the optical disc and the preset disc label name are not identical to each other; and as a result of the comparison, if the two passwords match, Decoding and outputting the restored data through the MPEG processing unit; and if the two passwords do not match, controlling not to decode the restored data of the DSP through the MPEG processing unit. How to restrict viewing.