KR20030071323A - Method and apparatus for changing parental level in reproducing optical disk - Google Patents

Abstract

PURPOSE: A method and apparatus for changing a parental level for playing optical disks are provided to receive a password required for varying the parental level from an external memory. CONSTITUTION: A method for changing a parental level for playing optical disks includes a step(10) of judging whether or not the parental level requires to change, a step(16) of judging whether or not a password provided by an external memory of an optical disk player is right when it is judged that the parental level requires to change, and a step(20) of varying the parental level when it is judged that the password is right. When the password is not right, a user is informed that the password is right(18).

Description

Method and apparatus for changing non-viewing level for reproducing optical discs {Method and apparatus for changing parental level in reproducing optical disk}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc reproducing apparatus such as a digital video disc (DVD) player, and more particularly, to a method and apparatus for changing a parental level.

The non-viewable level is used to prevent minors from reproducing content not suitable for viewing from an optical disc. Conventional optical disc reproducing apparatus stores such non-viewable levels in places such as electrically erasable and programmable ROM (EEPROM). The conventional optical disc reproducing apparatus compares the non-viewable level set in the optical disc with the non-viewable level stored in the EEPROM of the main body when reproducing the optical disc, and stops the operation of reproducing or reproducing the optical disc based on the comparison result. For example, the optical disc reproducing apparatus does not play the optical disc when the non-viewable level set in the optical disc is higher than the non-viewable level stored in the EEPROM, and the non-viewable level set in the optical disc is not higher than the non-viewable level stored in the EEPROM. If you play an optical disc.

If the non-visible level set in the optical disc is higher than the non-visible level stored in the EEPROM, the optical disc reproducing apparatus must be provided with the correct password if the optical disc is to be reproduced by changing the non-visible level. At this time, the conventional optical disc reproducing apparatus allows the initialization of a password in preparation for the loss of the password. Due to the initialization of such a password, the conventional optical disc reproducing apparatus has a problem that the original purpose of the non-viewable level is used, that is, the purpose for protecting the minor from pornography or violent materials cannot be properly utilized.

The technical problem to be achieved by the present invention is that the optical disk that can change the level of view can not receive the password required to change the level of view is provided from the external memory that can be embedded or removed, not the memory embedded in the optical disk playback device The present invention provides a method of changing the level of non-viewing for the reproduction of the music.

Another object of the present invention is to provide a non-viewable level changing device for reproducing an optical disc which performs the above-mentioned non-viewable level changing method.

1 is a flowchart for explaining a method for changing an unviewable level for reproduction of an optical disc according to the present invention.

Figure 2 is a block diagram of an embodiment of a non-viewable level changing device for playing an optical disc according to the present invention.

3 is a block diagram of another embodiment of a non-viewable level changing device for reproducing an optical disc according to the present invention.

In order to achieve the above object, the non-viewable level changing method for reproducing an optical disc according to the present invention, which is performed in an optical disc reproducing apparatus and changes a non-viewable level for restricting reproduction of an optical disc, changes the non-viewable level. Determining whether the user wants to change the level of the viewing impossibility; determining whether the password provided from the outside of the optical disc reproducing apparatus is correct; and determining that the password is correct, It is preferable to consist of changing the level of impossibility.

In order to achieve the above object, the non-viewable level changing device for reproducing the optical disc according to the present invention, which is included in the optical disc reproducing apparatus and changes the non-viewable level for restricting reproduction of the optical disc, A request inspection section which checks whether a change is requested and outputs the checked result as a first control signal, a memory that can be attached to and detached from the optical disk reproducing apparatus, stores a password, and in response to the first control signal; A number checker for checking whether the password read and inputted from the memory is correct, and outputting the checked result as a second control signal, and changing the unviewable level in response to the second control signal, It is preferable that it is comprised by the level change part which outputs an impossible level.

Hereinafter, with reference to the accompanying drawings a method for changing the level of view impossibility for the reproduction of the optical disk according to the present invention will be described as follows.

1 is a flowchart illustrating a method for changing an unviewable level for reproducing an optical disk according to the present invention. When an unviewable level is provided from the outside of the optical disk reproducing apparatus when a level for viewing cannot be changed, the view cannot be viewed. (The tenth, sixteenth and twentieth steps), and notifying the status of the optical disc reproducing apparatus by checking whether a password is to be provided (twelfth, fourteenth and eighteenth steps). It can be made further).

The non-viewable level changing method according to the present invention can be performed in an optical disc reproducing apparatus. The optical disc reproducing apparatus according to the present invention compares the non-viewable level set in the optical disc with its own non-viewable level, which can be provided from the outside, and reproduces the optical disc or stops the reproduction of the optical disc. Here, the optical disc may be a digital video disc, a video CD or a CD. For example, the optical disc reproducing apparatus according to the present invention continues the reproduction of the optical disc when the non-viewable level set in the optical disc is below its own non-viewable level, and the non-viewable level set in the optical disc is its own non-viewable level. If higher, the optical disc stops playing. Therefore, in order not to stop the reproduction of the optical disc when the non-visible level set in the optical disc is higher than its own non-visible level, the non-visible level of the optical disc should be changed to the non-visible level of the optical disc. Here, the self-viewability level is changed as follows by the non-viewability level changing method according to the present invention.

Referring to FIG. 1, first, it is determined whether a user wants to change a level at which viewing is impossible (step 10). For example, as described above, it is necessary to change the impossibility level so that the impossibility level set on the optical disc is higher than its own impossibility level so as not to stop the reproduction of the optical disc.

If it is determined that it is not necessary to change the non-viewable level, the method of changing the non-viewable level according to the present invention shown in FIG. 1 ends. However, if it is determined that the user wants to change the non-viewable level, that is, when it is necessary to change the non-viewable level, it is determined whether a situation is provided in which a password is provided from the outside (step 12). Here, the external means external to the optical disc reproducing apparatus, and the password can be provided from a memory that can be detached or attached to the optical disc reproducing apparatus, and the situation is that the removable memory is provided for the optical disc reproducing to provide a password. Means inserted into the device.

If it is determined that no situation has been provided for the password from the outside of the optical disc reproducing apparatus, that is, if it is determined that the memory has not been attached to the optical disc reproducing apparatus, a message is provided to prepare a situation for providing the password from the outside. Inform the user (step 14). Thus, the user can attach the memory to the optical disc reproducing apparatus through a message to attach the memory to the optical disc reproducing apparatus.

However, if it is determined that a situation for providing a password is provided from the outside, that is, if it is determined that a memory for providing a password is attached to the optical disc reproducing apparatus, is the password provided from the outside of the optical disc reproducing apparatus correct? (Step 16).

According to the present invention, unlike FIG. 1, the method for changing the level of view impossibility according to the present invention may not include the twelfth and fourteenth steps. In this case, if it is determined that the user wants to change the level at which viewing is impossible, the optical disc reproducing apparatus determines whether the password provided from the outside is correct (step 16).

On the other hand, if it is determined that the password provided from the outside of the optical disc reproducing apparatus is correct, the level of non-viewing is changed (step 20). Therefore, the reproduction operation of the optical disc can be continued without stopping. According to the present invention, if it is determined that the password is not correct, the method for not viewing the level may inform the user that the password provided from the memory is an error (step 18). This allows the user to reinsert the memory having the correct password into the optical disc reproducing apparatus.

Hereinafter, with reference to the accompanying drawings, the configuration and operation of each embodiment of the non-viewable level changing device for reproducing the optical disk according to the present invention for performing the above-described non-viewable level changing method will be described.

Fig. 2 is a block diagram of an embodiment of a non-viewable level changing device for reproducing an optical disc according to the present invention, which includes a request checker 40, a situation checker 42, a memory 44, a number checker 46, and a level. The changer 48 includes first and second notification units 50 and 52.

The non-viewable level changing device shown in FIG. 2 is included in the optical disc reproducing apparatus, and performs a role of performing the method of changing the non-viewable level shown in FIG. 1.

In order to perform the tenth step shown in FIG. 1, the request inspection unit 40 checks whether the user requests a change of the non-viewability level through the input terminal IN1, and uses the checked result as the first control signal C1. Output In this case, the memory 44 may be detachably attached to the optical disc reproducing apparatus, serves to store a password, and may have a stick shape so as to be easily attached to and detached from the optical disc reproducing apparatus.

According to an embodiment of the present invention, unlike in FIG. 2, the apparatus for changing the level of non-viewing according to the present invention may not provide the situation inspection unit 42 and the first notification unit 50. In this case, in order to perform the sixteenth step, the number checker 46 checks whether the password read out from the memory 44 is correct in response to the first control signal C1 input from the request checker 40. The test result is output to the level changing unit 48 as the second control signal C2. For example, when the number checker 46 recognizes that the change of the non-viewing level is requested through the first control signal C1 input from the request checker 40, the password checker 46 reads from the memory 44 and enters the password. The correctness is checked, and the checked result is output to the level changing unit 48 as the second control signal C2.

According to another embodiment of the present invention, as shown in FIG. 2, the apparatus for changing the level of non-viewing according to the present invention may provide a situation inspection unit 42 and a first notification unit 50. In this case, in order to perform the twelfth step, the situation inspection unit 42 checks whether the memory 44 is attached to the optical disk reproducing apparatus in response to the first control signal C1 input from the request inspection unit 40. The result of the inspection is output to the number inspection unit 46 and the first notification unit 50 as the third control signal C3, respectively. For example, the memory 44 attaches to the optical disc reproducing apparatus only when the situation inspecting unit 42 recognizes that the user cannot change the viewable level through the first control signal C1 input from the request inspecting unit 40. The result of the inspection is output to the number inspection unit 46 and the first notification unit 50 as the third control signal C3, respectively. At this time, in order to perform the sixteenth step, the number checker 46 checks whether the password input from the memory 44 is correct in response to the third control signal C3 input from the situation checker 42. The result of the inspection is output to the level changing unit 48 as the second control signal C2. For example, the number check section 46 only recognizes the password input from the memory 44 when it is recognized that a situation is provided from the outside through the third control signal C3 input from the status check section 42. The correctness is checked, and the checked result is output to the level changing unit 48 as the second control signal C2. In addition, in order to perform the fourteenth step, the first notification unit 50 responds to the third control signal C3 input from the situation inspection unit 42 and prompts to attach the memory 44 to the optical disc reproducing apparatus. To inform the output terminal via OUT1. For example, when the first notification unit 50 recognizes that a situation is not provided from the outside through the third control signal C3 input from the situation inspection unit 42, the memory 44 is stored in the optical disk. The output terminal OUT1 notifies a message to be attached to the playback device.

Meanwhile, in order to perform the twentieth step, the level changing unit 48 changes the non-viewing level input through the input terminal IN2 in response to the second control signal C2 input from the number checking unit 46, The changed viewability level is output through the output terminal OUT2. For example, the level changing unit 48 changes the view impossible level input through the input terminal IN2 only when it is recognized that the password is correct through the second control signal C2 input from the number checking unit 46. The level at which viewing is not possible is output through the output terminal OUT2.

The non-viewable level changing device according to the present invention may further provide a second notification unit 52. In order to perform the eighteenth step, the second notifying unit 52 outputs a message indicating that the password input from the memory 44 is an error in response to the second control signal C2 input from the number checking unit 46. It informs the user through terminal OUT3. For example, when the second notification unit 52 recognizes that the password is not correct through the second control signal C2 input from the number checking unit 46, the second notification unit 52 indicates that the password entered from the memory 44 is an error. Inform the user via the output terminal OUT3.

3 is a block diagram of another embodiment of a non-viewable level changing device for reproducing an optical disc according to the present invention, which includes an optical disc 70, a servo control and signal reproducing unit 72, a data processing unit 74, and a user interface. A unit 76, a control unit 78, an audio / video decoder 80, an on-screen display unit 82, a memory 84 and a ROM (Read Only Memory) 86.

The servo control and signal reproducing unit 72 shown in FIG. 3 performs disk servo, that is, focusing, tracking, constant linear velocity (CLV) control, and the like. Performs amplification, digitalization, and equalization of (RF: Radio Frequency) signals. In addition, the servo control and signal reproducing unit 72 converts an analog type wireless signal read from the optical disk 70 into an EFM (Eight: Fourteen or eight to fifteen Modulation) signal of the digital signal. Play a role. At this time, the data processing unit 74 stores a result of demodulating and error correcting the EFM signal input from the servo control and signal reproducing unit 72 in the buffer, and under the control of the control unit 78, the audio / video decoder 80 Send the saved result to.

The audio / video decoder 80 decodes the audio and video streams input from the data processor 74 and outputs the decoded audio and video results through the output terminals OUT4 and OUT5, respectively. At this time, the user interface 76 serves to interface the user with the optical disc reproducing apparatus. That is, the user interfacing unit 76 receives a front key and a remote control key through the input terminal IN3, and displays reproduction information such as a reproduction time by a fluorescent lamp tube (FLT). In order to output the output through the output terminal OUT6, the received key is output to the controller 78.

The on-screen display unit 82 serves to display on-screen display of reproduction information of the optical disk reproducing apparatus. That is, the on screen display information generated from the on screen display unit 82 may be output through the output terminal OUT5.

The control unit 78 controls the overall operation of the optical disc reproducing apparatus. That is, it plays a role of controlling each part shown in FIG. 3 in order to reproduce the optical disc 70 in response to the received key input from the user interface 76 and the program read out from the ROM 86.

In addition, the controller 78 plays a role of performing the method of changing the level of non-viewing according to the present invention shown in FIG. 1. That is, the controller 78 recognizes whether the user wants to change the level of view impossibility through the user key input from the user interface unit 76 (step 10), checks whether the memory 84 exists (see step 10). Step 12), check whether the password read out from the memory 84 is correct (step 16), and change the unviewable level read out from the memory 84 as described above in response to the checked results (step 20 steps). At this time, in response to the checked result, the controller 78 controls the on-screen display 82 to inform the user that the password is an error (step 18) or to prepare a situation, that is, the memory 84. Informs the message to insert into the optical disc reproducing apparatus (step 14).

As described above, the method and apparatus for changing the non-viewing level for reproducing an optical disc according to the present invention are not stored in the memory itself, such as EEPROM, but are stored separately from the password required for changing the non-viewing level. Since it is possible to change the non-viewable level provided from an external memory such as a manageable memory stick, it is possible to protect minors by preventing the viewing of pornography or violent material that was possible through initialization when the password was lost. Has an effect.

Claims (8)

In the optical disc reproducing apparatus, the non-viewing level changing method for changing the non-viewing level for restricting reproduction of the optical disc, (a) determining whether to change the level of view impossibility; (b) determining that the password provided from the outside of the optical disc reproducing apparatus is correct when it is determined that the user cannot change the viewable level; And and (c) if the password is determined to be correct, changing the non-viewable level. The method of claim 1, wherein the password is provided from a memory provided outside the optical disk reproducing apparatus. The method of claim 1 or 2, wherein the non-viewing level changing method is If it is determined that the user cannot change the viewing level, determining whether a situation in which the password is provided from the outside is prepared, and if the situation is prepared, proceeding to step (b); And And if it is determined that the situation is not provided, providing a message for providing the situation. 4. The method of claim 3, wherein the situation corresponds to the insertion of the memory into the optical disc reproducing apparatus. The method of claim 1, wherein If it is determined that the password is not correct, further comprising the step of informing a message that the provided password is an error. A non-viewing level changing device included in an optical disc reproducing apparatus and changing a non-viewing level for restricting reproduction of an optical disc, A request inspecting unit which checks whether to request the change of the non-viewing level and outputs the inspected result as a first control signal; A memory detachable from the optical disc reproducing apparatus and storing a password; A number checker which checks whether the password read out from the memory is correct in response to the first control signal, and outputs the checked result as a second control signal; And And a level changing unit for changing the level of non-viewing in response to the second control signal and outputting the changed level of non-viewing. The apparatus of claim 6, wherein the non-viewable level changing device A status inspecting unit which checks whether the memory is attached to the optical disk reproducing apparatus in response to the first control signal, and outputs the inspected result as a third control signal; And And in response to the third control signal, a first notification unit for notifying a message to attach the memory to the optical disc reproducing apparatus, And the number checker checks whether the password inputted from the memory is correct in response to the third control signal. The apparatus of claim 6, wherein the non-viewable level changing device And a second notifying unit for notifying a message that the provided password is an error in response to the second control signal.