KR0178741B1 - Image reproducing method according to password input - Google Patents

Abstract

The present invention relates to a partial video playback method according to password input. In the device according to the present invention, in playing a disc divided into different playback grades according to the video content, the password corresponding to the playback grade is pre-stored, and then the password of the grade to be played back is compared with the currently input password. By registering the play permission level and skipping or playing the recorded contents on the disc according to the registered play permission level, it is possible to play partly according to the play permission level, so that it is possible to view the movie content according to the grade of the movie content. If there is a class that is not allowed to be viewed in the middle of the class, then the contents of the next authorized class are automatically searched and reproduced, so that the continuous playback can be performed within the limits of the class. .

Description

Partial video playback method by password input

1 shows a general disc player.

2 is a view showing a password input process of the device of FIG.

3 is a diagram illustrating a process of controlling playback in response to an input password.

4 is a diagram showing an example of a disk structure for which playback is to be controlled using a password.

FIG. 5 is a diagram for explaining an operation of inputting a password according to each class in playing a disc having the structure shown in FIG.

FIG. 6 is a flowchart illustrating a process of controlling image playback partially according to whether a password corresponding to each playback class is input according to an exemplary embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1: control unit 10: key input unit

9 display unit

The present invention relates to a method for selecting and playing only video contents of a specific grade. In particular, when a disc is divided into different playback grades, content corresponding to a grade that is not allowed to be skipped is skipped. The content corresponding to the permission level is related to the partial video playback method according to the password input for continuous playback.

Conventionally, the apparatus for controlling the reproduction of video content starts playback only by inputting a specific password pre-stored in the video device in order to limit an unauthorized person arbitrarily viewing the content recorded on the recording medium. Referring to FIG. 1, a reproduction control apparatus for controlling such conventional reproduction is as follows. 1 is a block diagram showing a conventional video reproducing apparatus, wherein the pickup section 2 is provided with an actuator for focusing and tracking from the disk 8. The radio frequency (RF) amplifier 5 converts an optical signal into an electrical signal and extracts a servo signal and eight to fourteen modulation (EFM) data for performing servo. The digital signal processor 6 demodulates video and audio data using EFM data applied from the RF amplifier 5 and generates a constant linear velocity control signal. The signal generator 11 generates video and audio signals from the video and audio data demodulated from the RF amplifier 5. The servo signal processor 3 receives servo signals from the RF amplifier 5 and the digital signal processor 6 to generate a servo control signal for stable servo. The spindle motor 7 receives the servo control signal from the servo signal processing section 3 to control the speed of the disk 8. When the password input mode from the key input unit 10 is set, the controller 1 pre-stores the password from the key input unit 10 in the built-in D-RAM, and stores the key input unit 10 at the time of reproduction. When the playback mode is set, the control signal is generated according to the user's password number input. The display unit 9 shows the operating state of the system. More specifically, this will be described with reference to FIGS. 2 and 3.

2 is a flow chart showing the password input process of the punishment of FIG. When the user enters the password input mode through the key input unit 10, the controller 1 checks whether the password is already stored in the built-in D-RAM (step 201). If the password is not pre-stored in the D-RAM in the password storage check step (step 201), the control unit 1 requests the input of a new password through the display unit 9, and the key input unit 10. In step 204, the new password is received (step 204) and stored in the embedded D-RAM (step 205). On the other hand, if the password is stored in the password storage check step (step 201), the display unit 9 requests the input of the password. The user enters a password (step 202). Then, the controller 1 compares the previously stored password with the password input by the user (step 203). If the entered password matches the existing password, the new password is registered. Thus, it is determined whether a new password has been entered (step 204), and if a new password has been entered, the newly entered number is changed to a password (step 205). If the new password has not been registered, the password input mode is maintained while maintaining the existing password. Quit.

3 is a diagram illustrating a process of controlling playback in response to an input password. First, the controller 1 checks whether a password is pre-stored in the built-in D-RAM (step 301). If the password is not stored in advance, the controller 1 generates a control signal for starting playback (step 304). If the password is confirmed, the controller 1 requests the user's password input through the display unit 9 (step 302). If a password is applied through the key input unit 10, the control unit 1 reads out the previously stored password and compares it (step 303). Only when the two passwords compared in the password comparison step (step 303) match, the control unit 1 generates a control signal for starting the disc playback (step 304), and if it does not match, terminates the process without playing the disc.

4 is a diagram showing an example of a disk structure to be controlled by using a password as shown in FIGS. The images recorded on the disc are divided into a number of classes according to their contents. Table 1 below is divided into 5 grades based on the user's age.

Here, the first grade is a movie for children, which can be watched without a parent, and the second grade is a content that a user can watch with a parent under 13 years old. Level 3 is for users who are under 18 years of age and can be watched with their parents. Level 4 Adults (Ⅰ) restricts general adult viewing to minors. Level 5 Adults (Ⅱ) shows minors as well as minors. Even the contents for limiting the viewing are shown. However, not every single movie is limited to one class, but is divided into several classes according to the contents of the video. Thus, the disc is reproduced outward from the center of the disc, and respective grade information for the portion to be reproduced is recorded at the head of the portion. As shown in the figure, the contents of the image are developed in the order of 1st grade-2 grade-4 grade-5 grade-2 grade-1 grade-2 grade-1 grade. C, d, d, f, d, h) are recorded for each grade. That is, (a) indicates that the next video content to be reproduced is one grade, (b) indicates that the next video content to be reproduced is two grades, and respective grade information is also recorded in other head positions. Playback control of the disc having such a structure is achieved by a process of inputting a password and checking an input password.

FIG. 5 is a diagram for explaining an operation of inputting a password according to each class in a disc having the structure shown in FIG. This password input mode is used to enter or change the password for each level. First, the controller 1 checks whether a password corresponding to the fifth grade is already stored (step 501). Here, since the content of the fifth grade is the most private and high grade, it is possible to simply determine whether the password for each grade is entered by first checking whether the password corresponding to the fifth grade is stored. The controller 1 determines whether there is a 5th grade password, and if present, requests the 5th grade password input through the display unit 9 (step 502). The user inputs a 5th grade password through the key input unit 10. The controller 1 compares whether the password of the fifth grade entered from the key input unit 10 and the previously stored fifth grade of password match (step 503). If it matches the level 5 password, it allows the registration of the new password entered for each level. Thus, a password corresponding to each reproduction class is input / stored (step 504). However, if the level 5 password does not match, the password input mode is exited while maintaining the existing password. If there is no 5th grade password again in step 501, it is determined as a new password input mode, and the flow advances to step 504 to input / store a password corresponding to each reproduction level. Here, the control unit 1 to prevent the loss of the stored password even when the power supply is cut off E Save the password using PROM. The conventional method of reproducing the contents of the disc in which the password corresponding to each of the playback classes is stored is as follows. When a disc encounters a point where there is rating information while playing a disc having a divided play rating, the playback is stopped and the next grade is checked for the content. If the rating is 1, playback is continued, and a password is required from the rating 2 to rating 5. If the entered password matches the password corresponding to the grade of the next content to be played, playback continues. If not, the playback is stopped.

As described above, by restricting the playback according to the grade, it becomes possible to view only the movie contents of the grade allowed according to the age of the viewer. However, if the contents of the adult grade are intermittently included in the middle of the disc, it is impossible to see the contents of the movie of the child grade that exist after the contents of the first adult grade. For example, in the case of the disk shown in FIG. 4, when a 15-year-old teenager, who can see up to grade 2, is given a password for grade 2 by his or her parents, it is present after meeting grade 4 at point (c). There is a problem that the contents of Grade 1 and Grade 2 present in (e) (f) (g) (h) cannot be seen.

The present invention is to solve the above problems, the rating is divided according to the image content recorded on the disk, and after storing the password corresponding to each divided rating, if an unauthorized level is detected according to the password comparison during disc playback The purpose of the present invention is to provide a partial image reproducing method by inputting a password which can skip image contents according to the grade and continuously reproduce the image contents of the permitted grade.

A feature of the present invention for achieving the above object is a method for controlling the playback of a disc divided into different playback grades according to the recording content, the password storage step of storing a password corresponding to each of the different playback grades, Checking the current playing grade of the region to be played back from the disc, requesting input of a password, comparing the input password with pre-stored passwords corresponding to the regions to be played, and registering a playing permission grade; There is provided a partial video playback method according to a password input including a playback control step of skipping or playing back the contents recorded on a disc according to a registered playback permission level.

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

In the embodiment of the present invention, the process of inputting the password is the same as the conventional method described with reference to FIG.

6 is a diagram illustrating a process of partially controlling image playback according to a password corresponding to each grade according to an exemplary embodiment of the present invention. The apparatus for achieving the present invention includes all the configurations of the conventional disc player shown in FIG. 1, and since the control method of the controller 1 is different from the conventional one, a detailed description of the configuration of the apparatus will be omitted.

First, when a user applies a key input signal for playing a disc through the key input unit 10, a password confirmation mode is set from the control unit 1. On the other hand, when the secret mode confirmation mode is set, the control unit 1 displays the rating information of the video content for the video portion to be reproduced at the beginning of the disc (a, b, d, d, d, d, d, d, d, a, d). In step 601, the video content of the portion to be supplied and reproduced is checked. Then, it is determined whether the current region is of class 1 (step 602), and if class 1, the process goes to step 607 to continue playback. However, if the current zone's grade is not Grade 1, a password entry is required (step 603). When the user inputs a password, the controller 1 determines whether the input password matches the password of the current area class (step 604). If the input password matches the password of the current zone grade, the grade corresponding to the currently entered password is registered in the reproduction permission grade pre-stored in the memory of the controller 1 (step 606), and playback continues (step 607). . However, if the input password does not match the password of the current realm level, it is determined whether one of the higher level passwords matches (step 605). If it matches any of the higher level passwords, step 606 is reached. However, if none of the higher grade passwords match, the next playback area of the disc is searched for (step 608). Thus, the next playback area is compared with the playback permission level stored in the memory of the controller 1 (step 609). If the next playback area is lower than or equal to the playback permission level, the process proceeds to step 607 to continue playback. However, if the grade of the next reproduction area is higher than the reproduction permission area, the next reproduction area is searched for. First, it is determined whether the searched area is the last area of the disc (step 610). If it is not the last area of the disc, the process proceeds to step 608 and repeats, and if the last area of the disc is reproduced, step (611).

As described above, in the partial video playback method according to the password input according to the present invention, in playing a disc divided into different playback grades according to the video contents, each of the playback grades is inputted and stored for each password. Require a password. Thus, by comparing the pre-stored passwords corresponding to the areas to be reproduced with the currently inputted password, the reproduction permission level is registered, and the contents recorded on the disc are skipped or reproduced according to the registered reproduction permission level, according to the reproduction permission level. Partial playback is possible, so that viewing is restricted according to the grade of the movie contents. If there is a grade in the middle of the movie that the right to view is not allowed, the contents of the next authorized grade are automatically displayed. It is possible to play continuously within the limits that the rating is allowed by finding and playing it.

Claims (3)

CLAIMS 1. A method for controlling playback of a disc divided into different playback grades according to recorded contents, the method comprising: a password storing step of storing a password corresponding to each of the different playback grades; Checking a current playing grade of a region to be reproduced from the disc and requesting input of a password; In the password input including a playback control step of comparing the input password and the pre-stored passwords corresponding to the areas to be played back and registering a playback permission level and skipping or playing back the contents recorded on the disk according to the registered playback permission level. Partial video playback method according to. The password control method of claim 1, wherein the reproducing control step comprises: a password comparing step of comparing whether the input password matches a password corresponding to a current level of a region to be reproduced; If the input password matches the current zone grade password, the grade corresponding to the currently entered password is registered as the play permission grade and continues to play. If the input password does not match the current zone grade password, Determining whether one of the grades of passwords matches; If it matches any of the passwords entered and the higher level passwords, the matching password level is registered as the play permission level, and then playback is continuously performed. If the password does not match any of the higher level passwords, the disk Searching for the next region of; It is determined whether the level of the searched area is lower than or equal to the play permission level. If the play area is lower than or equal to the play permission level, the play is continuously performed. If the play area is higher than the play permission level, the search step is repeatedly performed until the last area of the disc is searched. Partial video playback method according to the password input, characterized in that the. The partial image reproduction method according to claim 1, wherein the reproduction control step continues playback without restriction, without requiring a password input, when the current region is of the lowest grade.