CN1103995C

CN1103995C - Method for resetting password using disk and disk system adopting the same

Info

Publication number: CN1103995C
Application number: CN97114832.5A
Authority: CN
Inventors: 林郁琱; 安钟泰
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 1996-06-28
Filing date: 1997-06-28
Publication date: 2003-03-26
Anticipated expiration: 2017-06-28
Also published as: CN1180220A; KR100197608B1; KR980004858A; JPH1091534A

Abstract

To reset a stored password through the use of a specified disk by permitting the resetting of the password recorded in a disk system when reset data is decided to be recorded in the disk. A deck part 33 reads the signal from the specified recording position of the loaded disk by using an optical pickup by the control of a system controller 32 corresponding to the key signal from a key input part 31. A signal processing part 34 reproduces the signal which is read. The system controller 32 judges whether the signal reproduced through the signal processing part 34 is reset data given only to a hearing disk or not. When the loaded disk is judged to be the hearing disk, the system controller 32 controls an OSD part 35 and displays a 'MENU' screen on a monitor 36. Thus, the password is set to a state where it can be changed.

Description

The method of utilization dish resetting password and adopt the disc system of this method

The present invention relates to digital multi-purpose disk (DVD) system, relate in particular to a kind of password of storage of resetting with method that changes this password and the disc system that adopts this method.

Recently, as the recording medium of future generation that can substitute traditional video tape and compact disk (CD), DVD has caused the public's attention.Compare with CD, DVD can store mass data, and dvd system provides traditional irrealizable various functions of recording medium.For example, be divided into video title district VTS # 1～VTS # N, wherein comprise adult's management information table PTL_MAIT that can determine the film grade according to the DVD video area of DVD-video format.When the registration adult level, dvd system is only reset in play mode and is lower than the picture of predetermined level.Like this, because this restriction comprises the film grade of ultraviolence picture or serious pornographic picture.Therefore can not show the picture that children are harmful at home.

Process flow diagram and Fig. 2 with reference to Figure 1A, 1B will describe the conventional method of registering adult level.Fig. 2 represents the scene of the screen display (OSD) that each step of Figure 1A, 1B provides for the user.

When the user when step 111 is selected the adult level enrollment mode, dvd system is represented current adult level enrollment mode by the picture of the `OSD1 ' of displayed map on monitor 2.Then, dvd system judged whether to store be not equal to ' 0000 ' password.If stored be not equal to ' 0000 ' password, in step 112, dvd system shows on monitor whether inquiry changes the information of password of storage.When input does not change the keying signal of password, show the picture of the `OSD4 ' of the Fig. 2 that allows input one password in step 113.When importing a password by the user, in step 114, dvd system judges whether the password of input is the same with the password of storage.

In step 114, when two passwords are identical, that is, and when the qualified change adult level of definite user, in the national code tabulation of the `OSD2 ' picture of step 115 displayed map 2.Because each country is generally different about the standard of violence or pornographic picture, before determining adult level, should determine at first that whether this adult level is received by the standard of any country.If the user imports a national code, the national code of input is stored in the interior relevant parameter of systematic parameter.Then, in the rank list of the `OSD3 ' picture of step 116 displayed map 2.Eight grades of common examples dividing the film grade are used in the `OSD3 ' expression of Fig. 2.Select signal by user's input rank, the class stores of input is in the relevant parameter of systematic parameter.

In step 111, storage be not equal to ' 0000 ' the situation of password, mean and register grade for the first time.At this moment, dvd system execution in step 117, the picture of the `OSD4 ' of displayed map 2 on monitor.When the user entered password, dvd system execution in step 118 was then returned step 115 with the password of storage input.

Simultaneously, import the keying signal of notifying changed this password by the user in step 112, dvd system is reset the information of data to reset the password of storage in step 119 output request, then the data of resetting have been judged whether to import in step 120, if judge the data of having imported request in step 120, just at the `OSD4 ' picture of step 121 displayed map 2 so that the password of reception user new demand.When user's enter new password, execution in step 118.

When step 114 determines that the password of input is not equal to the password of storage, dvd system execution in step 122 is come the error message of the `OSD5 ' picture of displayed map 2.

As mentioned above, when registration one adult level, the registrant generally uses his password.Yet, forget him the registrant/herself password or this password reveal under the situation to other people, can not change the grade of registration.

For solving top problem, an object of the present invention is to provide a kind of method that is reset at the password of storing on the particular plate.

Another object of the present invention provides the disc system that can implement top method.

For realizing above-mentioned purpose of the present invention, a kind of method of resetting the password that is stored in disc system is provided, this method may further comprise the steps:

(a) specific dish is play in request;

(b) judge according to the request of step (a) whether the data of resetting are recorded on the particular plate that will play;

(c) when when step (b) determines that the data of resetting are recorded on the specific dish, allow to reset the password that is stored in disc system.

For realizing another object of the present invention, a kind of disc system is provided, it comprises:

One keying input block;

Replay device is used for the information of playback of recorded on loading disc; With

One controller, be used to respond the specific dish of request signal request broadcast by the resetting password of keying input block input, and the request signal according to resetting password is recorded under the situation of the dish of being reset by replay device in the data of resetting, and allows to reset the password that is stored in disc system.

Below with reference to accompanying drawing the preferred embodiments of the present invention are described, wherein:

Figure 1A and 1B are used for explaining the process flow diagram that can register and/or change the method for adult level at general dvd system;

Fig. 2 is illustrated in Figure 1A, offers user's screen display (OSD) picture state in each step of 1B;

Fig. 3 is the schematic representation of apparatus of resetting of expression resetting password according to the present invention;

Fig. 4 is a process flow diagram of explaining the method for resetting password according to the present invention;

Fig. 5 is illustrated in screen display (OSD) picture state that offers the user in each step of Fig. 4.

To describe the preferred embodiments of the present invention in detail below with reference to Fig. 3 to Fig. 5.

The invention provides a kind of part that dotted line marked, that is, reset the part of the password of storage, the method for use dish at Figure 1B.When the user buys dvd system, provide the demonstration board of the password that is used to reset storage.Therefore, the user needn't buy the dish of the separation that is used for resetting password.Make demonstration board and write down dish and other particular data of commercial panel that to make with other companies.The dvd system of making only makes it carry out the operation of the resetting password that requires when using demonstration board.

As shown in Figure 3, dvd system according to a preferred embodiment of the invention comprises the keying input block 31 that is made of telepilot and key array.This device also comprises having the signal processor that reads signal 34 that reads the tray salver (Deck) 33 of the optical head of signal and be used to reset and export from the optical head of tray salver 33 from dish.System controller 32 is connected to keying input block 31, with keying signal control tray salver 33 and the signal processor 34 of response from keying input block 31.Screen display unit 35 is connected to system controller 32, is used for being created in the OSD character that monitor 36 shows according to the control of system controller 32.

The operation of Fig. 3 device that constitutes below with reference to Fig. 4 and Fig. 5 detailed description.

Fig. 4 is the operational flowchart of explaining according to resetting password of the present invention, and Fig. 5 is illustrated in the figure that offers user's on-screen displays state in each step of Fig. 4.

The example of the dvd system of Fig. 3 uses demonstration board to carry out the operation of resetting password, the binary bit value `1111 ' that wherein is provided with on 13 byte to the 15 bytes part in VMGI_MAT zone of the demonstration board of being made by Samsung company limited resets data, and which will be described below.

In the step 112 of Fig. 1, when when the 31 input requests of keying input block change the keying signal of password, in step 410, the picture of system controller 32 control OSD unit 35 `OSD6 ' of displayed map 5 on monitor 36.According to the tutorial message that is presented in step 410 on the monitor 36, the user inserts demonstration board and operates keying input block 31 to play demonstration board at tray salver 33.Under the control of system controller 32, response is from the keying signal of keying input block 31, and tray salver 33 uses the optical head (not shown) to read signal from the specific record position of loading disc.Here, the position of reading signal is password change place that data reset in record on it, promptly above-mentioned VMGI_MAT district.The signal that signal processor 34 is reset and read by tray salver 33.System controller 32 judges whether the signal of resetting through signal processor 34 is the data of resetting (step 420) that are recorded in the Samsung demonstration board just.Binary bit value at the signal of being reset by 13 byte to 15 bytes in VMGI_MAT zone is under the situation of `1111 ', and system controller 32 is defined as the Samsung demonstration board with loading disc.When definite loading disc was the Samsung demonstration board, the `MENU ' picture of system controller 32 control OSD unit 35 displayed map 5 on monitor 36 was so that allow to change password.Then, system controller 32 request users select to change the item (step 430) of password at menu screen.When the user when keying input block 31 selects passwords to change, system controller 32 will be stored in the password of system storage (not shown) and remove, to receive new password (step 440).In step 450, system controller 32 control OSD unit 35 are at the `OSD4 ' picture of monitor 36 displayed map 2.Then, the user is through the password of keying input block 31 input requirements.System controller 32 execution in step 118 and with the input password be stored in the system storage (not shown).

As mentioned above, the invention provides the disc system of method and this method of employing of use dish resetting password.

Described the embodiment that the present invention determines although this paper has been specific, under the situation of not leaving the spirit and scope of the present invention, obviously can make multiple modification it.

Claims

1. method that is used to reset the password that is stored in disc system, this method may further comprise the steps:

(a) specific dish is play in request;

(c) in step (b) when the data of determining to reset are recorded on the specific dish, allow to reset the password that is stored in disc system.

2. the method for resetting password according to claim 1, wherein writing down the described particular plate of resetting data is demonstration board.

3. the method for resetting password according to claim 1 wherein allows resetting password, is used for changing the adult level of digital multi-purpose disk (DVD) system.

4. the method for resetting password according to claim 1, demonstration board is play in wherein said step (a) request.

5. the method for resetting password according to claim 4, wherein said step (a) is play demonstration board by a display request.

6. the method for resetting password according to claim 5, wherein said step (a) is play demonstration board through the screen display request.

7. the method for resetting password according to claim 1, wherein said step (b) comprises following substep:

(b1) the request playback of recorded of response of step (a) is at the signal of the ad-hoc location of loading disc;

(b2) judge whether the signal of resetting in step (b1) is to reset data.

8. the method for resetting password according to claim 1, wherein said step (c) comprise that request changes the substep of the password of storage.

9. the method for resetting password according to claim 8, wherein said step (c) change the password of storage through a display request.

10. the method for resetting password according to claim 9, wherein said step (c) change the password of storage through the screen display request.

11. a disc system of implementing the described method of claim 1 comprises:

One keying input block;

Replay device is used for the signal of playback of recorded on loading disc;

One controller, be used to respond request signal request broadcast particular plate through the resetting password of described keying input block input, resetting under the situation that data are recorded in the dish of being reset by replay device, allowing to reset the password that is stored in disc system according to the request signal of resetting password.

12. disc system according to claim 11, wherein writing down the described described dish of resetting data is demonstration board.

13. disc system according to claim 11, wherein said disc system are used to change the adult level of digital multi-purpose disk (DVD) system.

14. disc system according to claim 11, wherein said controller is play demonstration board according to the request signal request of resetting password.

The request signal of demonstration board 15. disc system according to claim 14, wherein said display display the play.

16. disc system according to claim 15, wherein said display is through the display the play request signal of demonstration board of screen display.

17. disc system according to claim 11, the request signal of the password of wherein said display display change storage.

18. disc system according to claim 17, wherein said display is through the request signal of the password of screen display display change storage.