KR100522814B1 - Method for restricting video reproduction in video reproduction system - Google Patents

Abstract

The present invention uses a prohibition word check technique to prevent sexually explicit adult movies from being exposed to adolescents. To this end, the present invention uses only the parental level information recorded for each program chain of a DVD title. Unlike the conventional method of restricting viewing, by restricting viewing of a DVD title by using a prohibition word selectively designated by a user or by restricting viewing of a DVD title by using a combination of parental level information and a selected prohibition word, Children and teenagers can be effectively prevented from being exposed to pornographic adult movies of pirated pirated copies that do not have parental level information.

Description

How to limit playback of video playback system {METHOD FOR RESTRICTING VIDEO REPRODUCTION IN VIDEO REPRODUCTION SYSTEM}

TECHNICAL FIELD The present invention relates to a technique for limiting playback of a video playback system, and more particularly, to a playback limiting method suitable for limiting playback of a DVD by using character and / or parental levels in a DVD system. .

As is well known, DVD titles not only record higher density data than CD, but also have various functions as well as image quality as compared with conventional image media. Among the various functions of the DVD, when a user watches a movie through the DVD system, there is a function of setting a movie viewing permission level (fair rental level) so that the user can selectively view only the movie or the scene in the movie corresponding to the level. Here, the parental level is set step by step for each program chain of a movie recorded in a DVD title.

More specifically, the parental level can selectively watch only the scene of the age level desired by the viewer, typically divided into children level, youth level, adult level, etc., all eight levels (1Kids, 2G, 3PG, 4PG-13) , 5PG-R, 6R, 7NG-17, and 8Adult parental levels are supported for DVD titles. For example, when a viewer set to a child level plays a DVD title, only scenes corresponding to the child level are selectively played among scenes recorded in the DVD title based on the preset parental level, and set to the youth level. When the viewer plays the DVD title, only scenes corresponding to the child level and the youth level are selectively played out of the scenes recorded in the DVD title based on the preset parental level.

As a result, managers in each home (ie, parents) can set appropriate levels of parental levels for their children, preventing their young children from being exposed to pornographic adult movies that may cause personality disorders. there was.

On the other hand, in the case of DVD titles, a large amount of illegal copies (aka, pirated versions) are in circulation today. In the case of such illegal copies, there is no parental level. In particular, in the case of lewd adult movies, more illegal copies are realistic.

Therefore, when young teenagers purchase and watch illegal copies, there is no parental level, so there is no way to prevent exposure to pornographic adult movies.

Accordingly, an object of the present invention is to solve the above-mentioned problems of the related art, and to provide a method of limiting the playback of an image reproducing system that can block the exposure of pornographic adult movies to adolescents by using a prohibition word check technique. have.

It is another object of the present invention to provide a method for restricting playback of an image reproducing system that can block sexually explicit adult movies from being exposed to adolescents by using a parental level and a prohibited word check technique.

In accordance with one aspect of the present invention, there is provided a method for limiting playback in a video playback system for playing a DVD title using an optical drive system, wherein the password and viewing restriction for each user can be distinguished for adult authentication. Registering a prohibited word of the DVD, reading character information of the DVD title during playback of the DVD title, checking whether the registered prohibited word exists, and when the prohibited word does not exist, Performing a playback mode of a title, requesting and inputting a password when the prohibited word exists, checking whether the input password is a registered adult authentication password, and inputting the password When the registered adult authentication password is included, performing a play mode of the DVD title. A method of limiting playback of an image playback system is provided.

In accordance with another aspect of the present invention, there is provided a method for limiting playback in an image playback system for playing a DVD title using an optical drive system, wherein each user password and parental control can be distinguished for adult authentication. Registering a prohibition word, checking whether the DVD title is a pirated pirated copy, and if the DVD title is not a pirated copy, the pair assigned to the user. Playing the DVD title according to the rental level information; if the DVD title is a pirated version, reading character information of the DVD title to check whether the registered forbidden word exists; When the word does not exist, the DVD title is read according to the parental level information given to the user. Generating a password, requesting input of a password when the forbidden word exists, checking whether the input password is a pre-registered adult authentication password, and when the input password is a pre-registered adult authentication password. The present invention provides a method for limiting playback of a video playback system including performing a playback mode of the DVD title.

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 by those skilled in the art.

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

A key technical aspect of the present invention is that, unlike the aforementioned conventional method of restricting viewing of a DVD title using only parental level information recorded for each program chain of the DVD title, the DVD title is selected using a prohibition word selectively designated by the user. By restricting the viewing of the DVD title or restricting the viewing of the DVD title by using the parental level information and the selected designated prohibited word, it is easy to achieve the purpose of the present invention through such technical means.

1 is a block diagram of an image reproducing system suitable for applying a method for restricting reproduction of a DVD title according to the present invention, which includes an optical drive system 102, a digital signal processing block 104, an audio processing block 106, and a video. Processing block 108, control block 110, memory block 112, and OSD processing block 114.

Referring to FIG. 1, the optical drive system 102 includes, for example, an optical pickup, a spindle motor, a servo control means, and the like, based on a reproduction control signal (servo drive control signal) provided from the control block 110. Then, the movie program data (program data including the parental level information) recorded on the DVD is read out, and the movie program data (playback data) read here is transferred to the digital signal processing block 104.

Next, the digital signal processing block 104 converts the reproduction data provided from the optical drive system 102 into digital data and then performs processing such as error correction, and reads the character information of the DVD title included in the reproduction data. It is checked whether there is a forbidden word provided from the control block 110, and the check result is provided to the control block 110. When the forbidden word does not exist in the character information of the DVD title, the playback data is outputted as audio data. (Audio data compressed according to a predetermined compression algorithm) and video data (video data compressed according to a predetermined compression algorithm) are separated and transmitted to the audio processing block 106 and the video processing block 108, respectively.

Unlike the above, the digital signal processing block 104 may be configured to selectively output the playback data based on the parental level information and the presence or absence of a prohibited word in the DVD title. Reference will be made later in detail.

Subsequently, the audio processing block 106 decodes the audio data provided from the digital signal processing block 104 into an original signal before compression, converts the audio data into an analog signal, amplifies the signal to a predetermined level, and delivers the audio signal to the speaker, not shown.

In addition, the video processing block 108 decodes the audio data provided from the digital signal processing block 104 into an original signal before compression, encodes it in accordance with a display standard, and delivers it to the monitor side, not shown. In this case, when OSD data such as a guide message is provided from the OSD processing block 114, the video processing block 108 synthesizes the decoded video data and the OSD data and transmits the synthesized video data to the monitor side.

On the other hand, the control block 110, for example, to control the overall operation of the DVD system including a microprocessor, generates a reproduction control signal according to the user operation to provide to the optical drive system 102, the user inputs Administrator information (administrator ID and password), prohibition words for parental control, parental control password, parental level information, etc. are designated or selected and stored in the memory block 112.

In addition, when the control block 110 receives a check result indicating that the DVD title contains a prohibited word from the digital signal processing block 104, the control block 110 requests the input of a password to check whether the input password is an adult authentication password. When the result of the check is not an adult authentication password, a command signal for commanding the output of the corresponding guidance message is generated and provided to the OSD processing block 114. In response, the OSD processing block 114 controls the DVD title. Contains a forbidden word, which generates a guide message indicating that the DVD title cannot be played (viewed), and sends it to the video processing block 108, which means that the DVD title cannot be played on the monitor. The guidance message is displayed so that the user can recognize that he or she cannot watch the DVD title.

Next, a process of restricting video reproduction using the prohibited word or the parental level and the prohibited word according to the present invention using the video reproduction system having the above-described configuration will be described.

Example 1

FIG. 2 is a flowchart illustrating a process of setting a playback (viewing) restriction level by an administrator designated for video playback restriction according to an embodiment of the present invention.

Referring to FIG. 2, while the video reproducing system, that is, the DVD system, performs the standby mode, the administrator can set the viewing level restriction for each user. When the administrator requests the viewing level restriction setting (steps 202 and 204), the control block is performed. In 110, input of administrator information (manager ID and password) is required. Here, the administrator can be a parent, for example, and each user can be a child.

Next, when manager information is input (step 206), the control block 110 compares the setting manager information previously set and stored in the memory block 112 with the input manager information to authenticate whether or not it is a valid manager ( Step 208).

If it is determined in the step 208 that it is determined to be a valid administrator, the control block 110 requests the input of the viewing level restriction information by providing a related menu screen on the monitor (step 210). Here, the viewing restriction level information may be a prohibition word for each user's password and viewing restriction.

Therefore, when the administrator inputs a password for each user and each prohibited word as viewing level restriction information, the control block 110 registers the input password and viewing level restriction information for each user in the memory block 112 ( Step 212).

For example, assuming that the manager is a mother and the husband and each child and adolescent are children, the manager's mother sets passwords for the husband and each child and views the banned words for the child and the youth. It may be registered as restriction information. Here, the prohibition word can be, for example, words such as sex, love, SCN, etc., and SCN is a word almost attached to the DVD title name in the case of pirated version.

Therefore, the administrator can register (including delete, modify, etc.) viewing level restriction information of the DVD title for each user through a series of processes as described above.

Next, a process of selectively limiting the image reproduction to the viewing level restriction information set for each user through the above-described process will be described.

3 is a flowchart illustrating a process of limiting playback of an image reproducing system according to a first embodiment of the present invention.

Referring to Fig. 3, if the user selects the playback mode of the DVD title while the DVD system is in the standby mode (steps 302 and 304), the digital signal processing block 104 reads and controls the character information in the DVD title. It is checked whether there is a forbidden word provided from block 110 (steps 306 and 308).

If the prohibition word does not exist in the DVD title as a result of the check in step 308, the digital signal processing block 104 separates the playback data into audio and video data, and the audio processing block 106 and the video processing block 108 are performed. And audio and video to be played in the DVD title are output on the speaker and the monitor (step 314). In other words, the user can watch a desired DVD title.

As a result of the check in the step 308, if there is a forbidden word in the DVD title, the digital signal processing block 104 generates a corresponding detection signal and provides it to the control block 110, in response to the control block 110. In step), a predetermined menu screen is provided to request a user to input a password to receive a password (step 310).

Next, the control block 110 checks whether or not the input password is an adult authentication password, that is, whether the input password is a password given to an adult who is not bound to a preset prohibited word (step 312). When the check result input password is an adult authentication password, the control block 110 generates a reproduction command signal and provides it to the digital signal processing block 104, and as a result, according to the data processing in the digital signal processing block 104. The reproduction data of the DVD title is delivered to the speaker and the monitor side, so that the user (adult user irrespective of the prohibited word) can watch the DVD title (step 314).

On the other hand, when the check result in the step 312, when the input password is not the password for adult authentication, the control block 110 generates a command signal for commanding the output of the corresponding guide message corresponding to the OSD processing block 114 In response, the OSD processing block 114 generates a guide message indicating that the DVD title contains a prohibited word set by the administrator and cannot play (view) the DVD title. , And as a result, a guidance message is displayed on the monitor indicating that the DVD title cannot be played (step 316), so that the user can recognize that he or she cannot watch the DVD title.

That is, according to the present embodiment, when there is a pre-set prohibition word on the DVD title, only the user who has received the password assigned for adult authentication can watch the DVD title.

Therefore, according to the present embodiment, a user (children, adolescents, etc.) who are assigned a registered password may not be able to fundamentally watch a DVD in which a prohibition word exists in a title. Therefore, regardless of whether or not there is a parental level, it is possible to reliably prevent children, adolescents, and the like from being exposed to pornographic adult movies.

Example 2

In the video reproduction restriction method according to the present embodiment, the process of the administrator setting and registering the viewing level restriction information is substantially the same as the process shown in FIG. 2. Therefore, hereinafter, the process of selectively restricting video reproduction based on the registered level of viewing level restriction information will be described in detail.

4 is a flowchart illustrating a process of limiting playback of an image reproducing system according to a first embodiment of the present invention.

Referring to Fig. 4, if the user selects a playback mode of a DVD title while the DVD system is in the standby mode (steps 402 and 404), the digital signal processing block 104 determines whether the DVD title is a pirated pirated copy. Check (step 406). Such a pirate check can be determined to be pirated when the phrase SCN is inserted after the DVD title or when there is no parental level information in the program chain. That is, in the case of pirated pirated copies, the phrase SCN is usually placed after the title, and in the case of pirated versions, parental level information is not inserted into the program chain.

If it is determined in step 406 that the loaded DVD title is not a pirated version, the digital signal processing block 104 transmits the check result to the control block 110, and in response, the control block 110 In step 408, a menu screen is provided on the monitor to request a user to input a password.

Subsequently, when a password is input, the control block 110 searches for a preset password stored in the memory block 112 to extract corresponding parental level information, and then extracts the extracted parental level information from the digital signal processing block. Forward to 104 (step 410).

As a result, the digital signal processing block 104 selects only the reproduction data of the program chain having the same level or less than the parental level provided from the control block 110, and then divides the audio and video into audio and video processing blocks 106, 108, respectively (step 412).

As a result, the user will be able to watch only the movie of the contents of the movie stored in the DVD title (e.g., the movie whose portion is classified as adult) has been deleted.

On the other hand, if the checked result in step 406 determines that the loaded DVD title is pirated, the digital signal processing block 104 reads the character information in the DVD title and provides the prohibited word from the control block 110. It is checked whether there is a presence (step 414, 416).

As a result of the check in step 416, if there is no forbidden word in the DVD title, the process proceeds to step (1) described above, and the subsequent steps are performed to perform selective playback (the parental level information in the program chain). ), Or full playback (if there is no parental level information in the program chain).

On the other hand, if the prohibition word is present in the DVD title as a result of the check in step 416, the digital signal processing block 104 generates a corresponding detection signal and provides it to the control block 110, and in response to the control. In block 110, a predetermined menu screen is provided to request the user to input a password (step 418).

Next, the control block 110 checks whether the input password is an adult authentication password, that is, whether the input password is a password given to an adult who is not bound to a preset prohibited word (step 420). When the check result input password is an adult authentication password, the control block 110 generates a reproduction command signal and provides it to the digital signal processing block 104, and as a result, according to the data processing in the digital signal processing block 104. The reproduction data of the DVD title is delivered to the speaker and the monitor side, so that the user (adult user irrespective of the prohibited word) can watch the DVD title (step 422).

On the other hand, when the check result in the step 420, when the input password is not an adult authentication password, the control block 110 generates a command signal for commanding the output of the corresponding guide message corresponding to the OSD processing block 114 In response, the OSD processing block 114 generates a guide message indicating that the DVD title contains a prohibited word set by the administrator and cannot play (view) the DVD title. , And as a result, a guidance message is displayed on the monitor indicating that the DVD title cannot be played (step 424), so that the user can recognize that he or she cannot watch the DVD title.

That is, according to the present embodiment, when the DVD title is not a pirated version, as in the usual case, only the reproduction data of a program chain equal to or lower than the parental level granted to the user is extracted and reproduced using the parental level information. If the DVD title is pirated and at the same time there is a prohibited word set in the DVD title, only the user who has been granted the password for adult certification can watch the DVD title.

Therefore, according to the present embodiment, a user (children, adolescents, etc.) who are assigned a registered password may not be able to fundamentally watch a DVD in which a prohibition word exists in a title. Therefore, even an illegally copied DVD title without a parental level can be reliably prevented from being exposed to pornographic adult movies such as children and adolescents.

As described above, according to the present invention, unlike the above-described conventional method of restricting viewing of a DVD title by using only parental level information recorded for each program chain of the DVD title, the user uses a prohibited word selectively designated by the DVD. By restricting viewing of a title or restricting viewing of a DVD title by using a combination of parental level information and a selected prohibition word, children, adolescents, etc. This can effectively block exposure.

1 is a block diagram of a video reproducing system suitable for applying a method for restricting playback of a DVD title according to the present invention;

2 is a flowchart illustrating a process of setting a playback (viewing) restriction level by an administrator designated for video playback restriction according to an embodiment of the present invention;

3 is a flowchart illustrating a process of limiting playback of an image playback system according to a first embodiment of the present invention;

4 is a flowchart illustrating a process of limiting playback of an image playback system according to a first embodiment of the present invention.

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

102: optical drive system 104: digital signal processing block

106: audio processing block 108: video processing block

110: control block 112: memory block

114: OSD processing block

Claims (8)

A method for limiting playback in an image playback system for playing a DVD title using an optical drive system, Registering a password for each user who can be identified for adult authentication and a prohibited word for parental control; Reading the character information of the DVD title at the time of reproduction of the DVD title to check whether the registered forbidden word exists; Performing a play mode of the DVD title when the forbidden word does not exist; Receiving a request for inputting a password when the forbidden word exists; Checking whether the input password is a registered adult authentication password; Performing the play mode of the DVD title when the input password is a registered adult authentication password; Restriction method of the video playback system comprising a. The method of claim 1, The prohibition word may be arbitrarily deleted and corrected by a user registered as an administrator in the video reproducing system. The method according to claim 1 or 2, The method may further include generating and providing a corresponding guidance message on the monitor when the input password is not a registered adult authentication password. A method for limiting playback in an image playback system for playing a DVD title using an optical drive system, Registering a password for each user who can be identified for adult authentication and a prohibited word for parental control; If it is selected to play the DVD title, checking whether the DVD title is pirated pirated; If the DVD title is not a pirated version, playing the DVD title according to parental level information granted to the user; If the DVD title is a pirated version, reading character information of the DVD title to check whether the registered prohibited word exists; Playing the DVD title according to parental level information granted to the user when the forbidden word does not exist; Requesting input of a password when the forbidden word exists, and checking whether the input password is a registered adult authentication password; Performing the play mode of the DVD title when the input password is a registered adult authentication password; Restriction method of the video playback system comprising a. The method of claim 4, wherein The prohibition word may be arbitrarily deleted and corrected by a user registered as an administrator in the video reproducing system. The method according to claim 4 or 5, The method may further include generating and providing a corresponding guidance message on the monitor when the input password is not a registered adult authentication password. The method according to claim 4 or 5, The method as claimed in claim 1, wherein the DVD title is determined to be the pirated version when an SCN character is present after the DVD title. The method according to claim 4 or 5, And the method determines the DVD title as the pirated version when there is no parental level information in the program chain.