KR20050119315A - Method for creating reproducing competence on adult title in a dvd system - Google Patents

Abstract

The present invention relates to a method for setting a parental level for each DVD title in a DVD recording / playback system. That is, in the present invention, in the method for restricting viewing of an adult title in a DVD recording / playback system, for an adult optical disc title that does not include the parental level information, the user directly associates the password information specified by the user with the disc information. By allowing the parental lock to be set, it is possible to prevent adult title playback by children or teenagers.

Description

How to set parental level for adult titles in DVD / Video system {METHOD FOR CREATING REPRODUCING COMPETENCE ON ADULT TITLE IN A DVD SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a DVD recording / reproducing system, and more particularly, to a method for setting a parental control per DVD title in a DVD recording / reproducing system.

In general, a digital versatile disk (DVD) recording / reproducing system refers to a device for reproducing and displaying data recorded on an optical disc such as a DVD or HD-DVD, in which data of a higher density is recorded than a CD. DVD titles produced to be reproduced in the DVD can be recorded at a higher density than CDs, and have various functions as compared to conventional video media by various additional data as well as image quality.

The above DVD titles include parental level information that allows the viewing of the DVD title, particularly by adults, adolescents, or children, for a parental control called parental lock. This feature is designed to prevent other non-adult users from playing DVDs on adult DVD titles, such as children in parental control ratings. Adult certification is performed on DVDs that have a rating so that other users below the parental level, such as children, cannot play the adult DVD title.

However, in the above-described parental control method in the conventional DVD recording / reproducing system, the above parental lock function can be performed only when the parental control level information is contained in the DVD title. There was a problem in that a DVD title, an illegally copied adult CD, or the like cannot properly perform a parental control function of a DVD title using the parental lock function.

Accordingly, an object of the present invention is to allow a user to set a parental lock directly by linking password information and disc information specified by the user for an adult optical disc title that does not include the parental level information in the DVD recording / playback system. Another aspect of the present invention is to provide a method for setting a parental level for each DVD title to prevent adult titles from being played by teenagers.

The present invention for achieving the above object is a parental control setting method for adult titles in a DVD recording / playback system, and (a) inputting a user parental control setting password for an optical disc title mounted in a loader when a user parental control setting request is made. (B) setting a parental level to an optical disc title mounted on the loader by using the parental level setting password information; And (d) if the password inputted from the user matches the preset parental control password, performing playback of the parental control set optical disc.

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

1 is a block diagram of a DVD recording / playback system to which an embodiment of the present invention is applied. Hereinafter, an operation of each part of the DVD system will be described with reference to FIG. 1.

First, during recording, the DSP (digital signal processor) 106 adds additional data for error correction code (ECC) to the coded data, modulates it by a predetermined modulation scheme, and actuates the controller 110 up / down. According to the down command, a signal for driving a lens actuator (lens actuator) is generated in the pickup unit 102.

The RF amplifier 104 amplifies the electrical data input from the DSP unit 106 and converts it into an optical signal. The pickup section 102 incorporates an actuator for focusing and tracking, and records the optical signal converted by the RF amplifier section 104 on a disc.

The servo unit (servo) 108 receives the information necessary for servo control from the DSP unit 106 through the RF amplifier unit 104 and the control unit 110 to perform a stable servo. The controller 110 controls the overall operation of the entire system and records data on the disk through the DSP unit 106, the RF amplifier 104, and the pickup unit 102 according to a user's key input.

Next, during reproduction, the pick-up 102 reads out the optical signal from the disk storing the data. The RF amplifier 104 converts an optical signal output from the pickup unit 102 into an electrical signal and extracts a servo signal and modulated data for performing servo.

The DSP unit 106 demodulates the data modulated by the RF amplifier 104, removes additional data while correcting an error by performing ECC, and the pickup unit 102 according to the actuator up / down command of the controller 110. A signal for driving the lens actuator is generated. The servo unit 108 receives information necessary for servo control from the RF amplifier 104 and the controller 110 to perform stable servo.

Meanwhile, the controller 110 provides a user viewing restriction setting for an adult DVD title that is produced by a user or does not include parental grade information according to an embodiment of the present invention. That is, the control unit receives a user parental control setting password for an optical disc title mounted in the DVD loader when a parental control setting request is made from a user for an adult DVD title in which parental status information is not recorded. After storing the setting password information in the memory, the user may request the input of the parental control set password when the user requests the reproduction of the DVD optical disc whose parental control is set to prevent playback of adult DVD titles by unauthorized users who do not know the password.

2 is a flowchart illustrating an operation control for setting parental control for an adult DVD title according to an exemplary embodiment of the present invention. Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.

First, if a user wants to set a custom parental lock parental control level for an adult DVD title played from a DVD recording / playback system, the user can select the DVD title for which the parental control is to be set within the DVD loader. After mounting, a user-specified parental control setting for a disc mounted through a specific key or key combination is requested on a key input unit (not shown) provided for the user-defined parental control setting function.

In response to this in step S200, the control unit 110 of the DVD recording / playback system requests the input of the adult authentication password information for the user-specified parental lock function to input the key from the user in step S202. Receive the password for adult authentication.

Subsequently, the control unit 110 of the DVD recording / playback system stores the password information in association with the DVD optical disc identification information mounted in the loader in step S204, thereby allowing user-specified parental locks to the DVD title. Set the function. For example, up to five user-specified parental lock information may be stored in the storage unit 112.

Subsequently, when there is a playback request from the user for the DVD title mounted in the DVD loader, the control unit 110 of the DVD recording / playback system proceeds to step S208 in response to step S206 in step S206, where the DVD loaded in the loader is loaded. Checks whether the title is a DVD optical disc in which the parental lock specified by the user is set.

At this time, if the parental lock specified by the user is not set in the DVD title requested for playback, the control unit 110 of the DVD recording / playback system proceeds to step S212 in response to this in step S210. To play the DVD title mounted in the loader.

On the contrary, if it is checked that the parental lock designated by the user is set in the DVD title requested to be played, the control unit 110 of the DVD recording / playback system proceeds to step S214 in response to this in step S210. Then, a password input for releasing the parental lock function of the parental control set optical disc is requested to receive an adult authentication password for releasing the parental lock through a key input unit from the user.

Subsequently, the controller 110 of the DVD recording / playback system checks whether the password inputted by the user in step S216 matches the password for releasing the parental lock set in the DVD title and proceeds to step S218. Therefore, the user who has requested the playback is judged as an authorized valid user, and the playback of the parental control DVD title set by the parental lock function is performed.

As described above, in the present invention, in the method of limiting the viewing of an adult title in a DVD recording / playback system, for an adult optical disc title that does not include the parental level information, the user connects password information and disc information specified by the user in association with the user. By allowing the parental lock to be set directly, it is possible to prevent adult titles from being played by children or teenagers.

Meanwhile, in the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the invention should be determined by the claims rather than by the described embodiments.

As described above, in the present invention, in the method of restricting viewing of an adult title in a DVD recording / playback system, password information specified by a user is linked to disc information for an adult optical disc title that does not include the parental level information. By allowing the user to directly set the parental lock, there is an advantage that it is possible to prevent the adult title playback by children or teenagers.

1 is a schematic block diagram of a DVD recording / playback system to which an embodiment of the present invention is applied;

2 is a flowchart of a parental level setting process for an adult title in a DVD recording / playback system according to an embodiment of the present invention;

<Brief description of the major symbols in the drawings>

100: optical disk 102: pickup portion

104: RF amplifier 106: DSP unit

108: servo unit 110: control unit

112: storage unit

Claims (3)

As a method of setting parental control for adult titles in a DVD recording / playback system, (a) receiving a user parental control setting password for an optical disc title mounted in the loader when a user parental control setting request is made; (b) setting the parental level to the optical disc title mounted in the loader using the parental level setting password information; (c) requesting a password input for releasing parental control when requesting a play of the parental control set optical disc; (d) performing playback of the viewing-restricted optical disc when the password input from the user matches the preset viewing-limiting password How to set the parental control for adult titles in the DVD recording / playback system comprising a. The method of claim 1, In the step (b), (b1) receiving password information for setting parental control from a user; (b2) setting the user-specified parental control on the optical disc title by storing the password information in association with the optical disc identification information mounted in the loader; How to set the parental control for adult titles in the DVD recording / playback system comprising a. The method of claim 1, The parental disc title for which the parental level setting is required is one of a DVD and a VCD title not including parental level information.