CN1790518A

CN1790518A - Device for preventing copied disc from being played and its method

Info

Publication number: CN1790518A
Application number: CN 200410093167
Authority: CN
Inventors: 崔武洛
Original assignee: Shanghai LG Electronics Co Ltd
Current assignee: Shanghai LG Electronics Co Ltd
Priority date: 2004-12-17
Filing date: 2004-12-17
Publication date: 2006-06-21

Abstract

The invention discloses a play device and method of duplication-proof disk, which comprises the following steps: inputting the user order; playing the recorded information on the disk; judging whether the disk tag is intrinsic; loading the disk information if yes; regarding the operation as abnormal over of duplicated disk if not; loading the disk data after controlling the disk; proceeding abnormal over step if the controlled disk is the duplicated disk. The invention avoids the play of illegal duplicated disk, which reinforces the virtual property of copyright protection.

Description

Prevent the devices and methods therefor that copied disc is play

(1) technical field

The invention of the relevant disk play device of the present invention, particularly control the disc characteristic of (MASTERING) and do not control the disc characteristic of (MASTERING) about utilization, the bootlegging disc of (MASTERING) is not controlled in identification, and prevents to play a kind of devices and methods therefor that prevents that copied disc from playing of the copied disc that has literary piracy with this.

(2) background technology

Usually, apparatus for accompanying song (karaoke machine), according to user's selected songs, visit (Access) output is play with digital audio (MIDI:Musical Instrument Digital Interface) file mode and is stored most bent recording mediums.Simultaneously the user's song by most microphone inputs is outputed to the loudspeaker of allocated channel.

Fig. 1 is the function integration map of common karaoke machine.

As shown in Figure 1, karaoke machine comprises: with the disc 11 of most songs of MIDI document form record and corresponding background frame; When the user sings by microphone 12, be the conversion of signals of user's microphone input the A/D converter 13 of digital signal.

Also comprise the MIDI source of sound that reads above-mentioned disc 11 or pass through above-mentioned A/D converter 13, the signal processor 14 of processing digital signal.

Here, signal processor 14 is totally controlled by the interpolater (not shown) of the calculated signals mark of above-mentioned microphone 12 inputs etc. is formed.

Simultaneously, the information-storing device 15 that also comprises karaoke machine function information needed such as storing signal that above-mentioned signal processor 14 controls or song information.

Also comprise the demoder 16 of the vision signals such as above-mentioned signal processor 14 handled moving image informations or song mark of decoding.

Also have, above-mentioned signal processor 14 handled digital audio and video signals are converted to the D/A converter 17 of simulating signal.

Therefore, can export the video data of above-mentioned demoder 16 decodings and the sound signal of above-mentioned D/A converter 17 conversions.

Simultaneously, the disc of the recording medium of using as above-mentioned karaoke machine 10 can service recorder and play the audio-frequency information that can play on the optics or the CD dish or the CDs such as laser disk (LD), DVD dish of video information.

These CDs can store high capacity information compared with contact recording media disc (LP) or tape, and mass effect is very excellent during broadcast information, and the influence that is subjected to magnetic or heat also reduces and can not cause the damage of store information.Because of its usable range of these advantages enlarges just day by day.

Though, because the advantage of these CDs and usable range enlarge, the problem of thereupon having brought the danger of bootlegging to increase.

(3) summary of the invention

The present invention proposes in order to address the above problem, its purpose is to provide a kind of utilization to carry out the disc of control (MASTERING) and does not control the characteristic of the disc of (MASTERING), the bootlegging disc of (MASTERING) is not controlled in identification, provides the devices and methods therefor disc that copied disc is play that prevents that can prevent literary piracy with this.

To achieve these goals, the devices and methods therefor that prevents that copied disc from playing of the present invention comprises:

Disc; Microphone; Described microphone input signal is converted to the analog/digital converter of digital signal; The copied disc determining device judges whether the label of described disc is intrinsic label, if intrinsic label just loads disc information; Under the situation that is not copied disc, will be to song information that is recorded in described disc and the digital/analog converter of handling by the digital signal that described A/D converter is changed; Store the signal of described copied disc determining device control or the information-storing device of song information; The demoder of the moving image information that described copied disc determining device is handled or the decoding video signal of song mark.

In the present invention, as input, play when being recorded in the information of disc according to user's key, to there be the disc of record controls (MASTERING) heading message to load above-mentioned disc information, if there is not the disc of control (MASTERING) information, just be recognized as the bootlegging disc, prevent to play.

Simultaneously, above-mentioned replicating disk determining device judges whether the label (labe1) of above-mentioned disc is intrinsic label, and only under the situation of intrinsic label, the reprinting disc information is characteristics.

According to another side of the present invention, a kind of method that prevents that copied disc from playing, it is characterized in that comprising: according to user's key input instruction, when broadcast is recorded in information on the disc, judge whether the disc label that reads is intrinsic label, and on the basis of intrinsic label, load disc information, if not just being considered as copied disc, the step of carrying out improper end; Behind the above-mentioned steps hosting Information, just load disc data if carry out the disc of control (MASTERING), otherwise just be considered as copied disc, be not the step of normal termination.

Effect of the present invention:

As mentioned above, the devices and methods therefor disc that prevents that copied disc from playing according to the present invention is, the characteristic of disc of control (MASTERING) was carried out in utilization and the characteristic of not carrying out the disc of control (MASTERING) is judged the disc that did not carry out control (MASTERING), made it can stop the broadcast of illegal disc in advance.

Therefore, even there is bootlegging, plays the device of above-mentioned disc and can't play the bootlegging disc, and can strengthen the actual effect of copyright protection.

For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.

(4) description of drawings

Fig. 1 is the function integration map of common karaoke machine.

Fig. 2 is the function integration map according to karaoke machine of the present invention.

Fig. 3 is the process flow diagram of copied disc process privately that prevents that is illustrated in karaoke machine of the present invention.

The symbol description of major part in the accompanying drawing:

10,20: karaoke machine 11,21: disc

12,22: microphone 13,23:A/D (analog/digital) converter

14: signal processor 24: the replicating disk determining device

15,25: information memory 16,26: demoder

17,27:D/A (digital-to-analog) converter

(5) embodiment

Below with reference to accompanying drawings, the embodiment of the devices and methods therefor that copied disc is play that prevents of the present invention is elaborated.

Fig. 2 is according to karaoke machine function integration map of the present invention.

As shown in Figure 2, karaoke machine according to the present invention comprises the disc 21 with most songs of MIDI file layout record and corresponding background frame.

Here, disc 21 is generally CD, has used the contactless imprinting mode of utilizing laser, is made by transparent plastic material disk.In the data recording field of disk, along with spiral trajectory alignment caves in the limited number that fine raceway groove forms, with data messages such as digital form record audio, video datas.

The engineering of so making CD has following steps usually: master (Master Disc; , glass master: making step Glass master); The making step of pressing mold (Stamper) metal master (Metal master) (control (MASTERING) step); The molding substrate step; Substrate sprays paint and print steps.

In above-mentioned control (MASTERING) step, in order to duplicate most CDs with same signal, and replicated substrate.

Therefore, karaoke machine according to the present invention utilizes the characteristic of the disc control (MASTERING) and not have the characteristic of the disc of control (MASTERING) in disc, and judgement uses the disc on karaoke machine whether to be replicating disk.Promptly, when playing the information be recorded on the disc according to user's key input instruction, the disc that was carried out the heading message of control (MASTERING) (music master tape audio mixing engineering) by record just loads above-mentioned disc information, if do not have the information of control (MASTERING), just be judged as the bootlegging disc

That is,, judge in copied disc determining device 24 whether the label of disc 21 is intrinsic label, if intrinsic label just loads disc information according to karaoke machine of the present invention.

Simultaneously, also comprise when the user passes through microphone 22 singings, user's microphone input signal is converted to the A/D converter 23 of digital signal.Whether above-mentioned karaoke machine copied disc determining device 24 judges whether to behind the copied disc according to the control (MASTERING) of disc, under the situation that is not copied disc, will handle to the song information that is recorded in above-mentioned disc with by the digital signal that above-mentioned A/D converter 23 is changed.

Simultaneously, copied disc determining device 24 is totally controlled to comprise interpolater structures such as (not shown) composition that the signal from above-mentioned microphone 22 inputs is carried out fractional computation.

The information-storing device 25 that also comprises karaoke machine function information needed such as the signal that stores above-mentioned copied disc determining device 24 controls or song information.

The demoder 26 that also comprises the decoding video signal of moving image information that above-mentioned copied disc determining device 24 is handled or song mark etc.

Also comprise the D/A converter 27 that above-mentioned copied disc determining device 24 handled sound signals is converted to simulating signal.

Therefore, can export video data of being decoded and the sound signal of being changed by above-mentioned D/A converter 27 by above-mentioned demoder.

Fig. 3 is in karaoke machine 20 according to the present invention, the process flow diagram of expression copied disc deterministic process.

As shown in Figure 3:

S11 at first reads disc information.

S12, S13 judge whether the disc label that is read is intrinsic label.If intrinsic label just loads disc information, otherwise be considered as copied disc and implement improper end.

S14 simultaneously, behind the loading disc information, judges whether to carrying out the disc of control (MASTERING) again.

S15 here, if carried out the disc of control (MASTERING), after the loading disc data, as long as song finishes, just implements normally to close; If not the disc that carried out MASTERING, then be considered as copied disc and implement improper closing.

Simultaneously, for disc, the information of DVD for example, by each DVD media is to have some difference, but the DVD label that can judge whether to carry out control (MASTERING) therefore can be judged copied disc easily, only play normal disc, prevent literary piracy with this.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.

Claims

1, a kind of device that prevents that copied disc from playing is characterized in that comprising:

Disc;

Microphone;

Described microphone input signal is converted to the analog/digital converter of digital signal;

The copied disc determining device judges whether the label of described disc is intrinsic label, if intrinsic label just loads disc information;

Under the situation that is not copied disc, will be to song information that is recorded in described disc and the digital/analog converter of handling by the digital signal that described A/D converter is changed;

Store the signal of described copied disc determining device control or the information-storing device of song information;

The demoder of the moving image information that described copied disc determining device is handled or the decoding video signal of song mark.

2, the device that prevents that copied disc from playing as claimed in claim 1 is characterized in that:

Described copied disc determining device judges whether the label of described disc is intrinsic label, only loads disc information under the situation of intrinsic label.

3, a kind of method that prevents that copied disc from playing is characterized in that comprising:

When playing the information that is recorded on the disc, judge whether the disc label that reads is intrinsic label, if intrinsic label just loads disc information, otherwise just is considered as the step of the improper end of copied disc according to user's key input instruction;

In above-mentioned steps, behind the loading disc information, just loaded disc data if carry out the disc of control, just be not considered as copied disc if carry out the disc of control, carry out the step of improper end.