CN1787099A - Method for preventing copying information stored in digital synthesizing video recorder - Google Patents
Method for preventing copying information stored in digital synthesizing video recorder Download PDFInfo
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- CN1787099A CN1787099A CN 200410089215 CN200410089215A CN1787099A CN 1787099 A CN1787099 A CN 1787099A CN 200410089215 CN200410089215 CN 200410089215 CN 200410089215 A CN200410089215 A CN 200410089215A CN 1787099 A CN1787099 A CN 1787099A
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- video recorder
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- synthesizing video
- digital synthesizing
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Abstract
The invention relates to the prevention of illegal duplication of stored information in a digital synthetic video tape recorder. In a digital synthesizing video tape recorder integrated with DVD video tape recorder and hard disc, if a duplicating operation on the inner stored information is required, the program read from the CD or the file read from the hard disc will generate a corresponding guiding file, and at the same time of searching the guiding file, by referring to a duplication preventing information added in the guiding file, and by selective duplicating operation or selective termination of duplicating some contents, it can effective prevent the illegal duplication of various files in the hard disc of the digital synthetic video tape recorder or various programs in the CD by the internal duplicating operation.
Description
[technical field]
The present invention is the relevant invention that prevents from canned data in the digital synthesizing video recorder is carried out bootlegging.Nearest people's researched and developed success DVD recorder and incorporate digital synthesizing video recorder of DVR, and put on market.The present invention can be in the digital synthesizing video recorder of integrated DVD recorder (DVD-Recorder) and DVR equipment such as (HDD-Recorder), prevents that the internal reproduction operation from carrying out bootlegging to temporary file or program.As shown in Figure 1, above-mentioned digital synthesizing video recorder 200 can be connected with televisor 400, also can link to each other with DVD phonograph 100 or DVD recorder 300 etc. simultaneously.
[background technology]
As shown in Figure 2, above-mentioned digital synthesizing video recorder 200 is by CD 20, light picker 21, video video disk recorder (Video Disc Record) system 22, hard disk 23, HDR (HDD Record) system 24, formations such as microcomputer 25 and storer 26.
25 li of above-mentioned microcomputers, according to user's request, can operate above-mentioned HDR system 24, read the temporary file that is stored in the hard disk 23; Also can operate, read the transient program that is stored in the CD 20 above-mentioned video video disk recorder system 22.Carry out after the read operation, the data stream that reads is sent in the above-mentioned DVD recorder 300 and output.Simultaneously in above-mentioned microcomputer 25, for the playback of data stream that prevents transmission output above-mentioned is carried out bootlegging by DVD recorder 300, the Copy Info (CGMS:Copy Generation Management System) that prevents that writes is in advance transmitted with playback of data stream.In DVD recorder 300, with reference to the above-mentioned Copy Info that prevents, playback of data stream just can not write in the CD, just can prevent that some from forbidding that because of the copyright protection problem the specific file that duplicates or specific program are by the random bootlegging of external unit institute.In addition according to user's request, to read the data stream of the specific program of playback from the CD in putting into digital synthesizing video recorder, from above-mentioned DVD phonograph 100, be transferred in the above-mentioned digital synthesizing video recorder 200, as previously mentioned, prevent that at this moment Copy Info CGMS is with the transmission of playback of data stream.And in above-mentioned digital synthesizing video recorder 200; with reference to the above-mentioned Copy Info that prevents; playback of data stream just can't write in CD or the hard disk, so just can prevent that some from forbidding that because of the copyright protection problem specific program that duplicates is synthesized the bootlegging of video recorder institute.
If but use is the ordinary numbers synthesizing video recorder, the specific file that installs on the inner integrated hard disk 23 just might be written into CD 20, certain specific program in the perhaps above-mentioned CD also might be written into hard disk, and in such cases, do not generate in addition in the device and prevent Copy Info, therefore use the user of ordinary numbers synthesizing video recorder, just can't prevent that the specific file of storing in the hard disk is written into CD, simultaneously can't prevent that also the specific program of storing in the CD is written into hard disk, the existing problem of ordinary numbers synthesizing video recorder that Here it is.
[summary of the invention]
Purpose of the present invention is exactly in order to overcome the problems referred to above.Specific file on the hard disk of digital synthesizing video recorder, perhaps additional the writing in the inside of the pairing guidance information of specific program in the CD prevents Copy Info, if request is duplicated internal information, retrieval is with reference to the above-mentioned Copy Info that prevents, what just can prevent that some from forbidding duplicating decides file or program by bootlegging.The present invention is replicated the good method that provides for preventing the information in the digital synthesizing video recorder.
The present invention provides solution for preventing the information in the bootlegging numeral synthesizing video recorder, and workflow is divided two, has constituted feature of the present invention simultaneously.The first step is when internal file is duplicated in request, to playback program or the corresponding guidance information of playback file in whether write and prevent that manifolding information from detecting; Second step was to stop replicate run selectively according to first step check result.
Use the digital synthesizing video recorder of this invention can prevent effectively that internal storage information is by arbitrarily bootlegging.In being integrated with the digital synthesizing video recorder of DVD recorder and DVR, program that reads from CD or the file that reads from hard disk have the guidance information of a correspondence, when request is carried out replicate run to the video recorder internal storage information, guidance information is searched for, simultaneously with reference to the Copy Info that prevents that comprises in this guidance information, can carry out replicate run or stop replicate run selectively some file, so just can prevent each class method of storing in the various files stored in the hard disk of digital synthesizing video recorder or the CD effectively, be duplicated arbitrarily by built-in function.
[description of drawings]
Fig. 1 is the synoptic diagram that ordinary numbers synthesizing video recorder and DVD phonograph, DVD recorder and televisor link together.
Fig. 2 is the structural representation of ordinary numbers synthesizing video recorder.
Fig. 3 is the synoptic diagram that writes in fixed disk file allocation table information according to the present invention when preventing Copy Info.
Fig. 4 is the synoptic diagram that writes in the CD program information according to the present invention when preventing Copy Info.
Fig. 5 is the operational flowchart that prevents from digital synthesizing video recorder memory contents is carried out clone method among the present invention.
The picture of forbidding replicate run information that Fig. 6 is among the present invention to be exported.
[embodiment]
Below will just use in the digital synthesizing video recorder of the present invention and prevent the method that information is replicated by operational instances in conjunction with the accompanying drawings, be elaborated.
At first, the present invention provides solution for preventing to duplicate, and with reference to Fig. 2, as previously mentioned, the present invention can be used for digital synthesizing video recorder.
As shown in Figure 3, the file allocation table packets of information in the hard disk 23 in the boot files of storage administration contains the information of preventing of duplicating (CGMS_Info), and being used for discerning associated documents is to forbid duplicating (No-Copy) still to allow to duplicate (Free-Copy).
As shown in Figure 4, program information in the CD 20 in the boot files of storage administration (PGI:Program Information) includes the information of preventing of duplicating (CGMS_Info), and being used for discerning associated documents is to forbid duplicating (No-Copy) still to allow to duplicate (Free-Copy).
In the microcomputer 25, when the internal reproduction operation is carried out in user's request, such as request the specific file of taking care of in the hard disk 23 is carried out replicate run, when file allocation table information is detected, duplicate the information of preventing (CGMS_Info) in the file allocation table information and confirm writing, carry out replicate run or stop replicate run selectively.
When request is carried out replicate run to writing specific program in the CD 20, to program information (PGI:Program Information) when detecting, the information of preventing (CGMS_Info) of duplicating in the write-in program information (PGI:Program Information) is confirmed, carried out replicate run or stop replicate run selectively.To being described in detail as follows of this operation.
Fig. 5 is the operating process synoptic diagram that has adopted the digital synthesizing video recorder that prevents clone method.For instance, in the microcomputer 25, carry out a series of data readback operations (S10) according to user's request, comprise control is operated by HDR system 24, read the file of storage in the hard disk 23, perhaps control is operated by video video disk recorder system 22, read program stored in the CD 20.
On the other hand, when carrying out aforesaid data readback operation in the microcomputer 25, if request is carried out replicate run (S11) to internal information, associated documents allocation table information to the specific file that reads in the hard disk is retrieved, and the Copy Info CGMS that prevents in the file allocation table information is confirmed; Perhaps the relevant program information PGI of specific program that reads in the CD is retrieved, and the Copy Info CGMS that prevents among the write-in program information PGI is confirmed.
If preventing display file in the Copy Info is to forbid (S13) that duplicate, the specific file that reads playback from hard disk just can not be copied in the CD, and the specific program that reads from CD can not be copied to above-mentioned hard disk yet and get on.In such cases, as shown in Figure 6, will export the information (S14) of a content for duplicating.
On the contrary, if preventing display file in the Copy Info is to allow (Free-Copy) that duplicate, will normally carry out following a series of replicate runs (S15): the specific file that reads playback from hard disk will copy in the CD, and the specific program that reads from CD also can copy to above-mentioned hard disk and get on.
If do not send the request of duplicating internal information, can carry out following data readback operation (S16) usually: the data stream that reads playback from hard disk or CD will be with preventing that Copy Info CGMS from being outputed in the external unit by microcomputer 25.Just can prevent that thus the user from utilizing digital synthesizing video recorder without authorization the file or the program of forbidding duplicating to be carried out bootlegging.
As previously described, except digit composite video recorder, this is about preventing that the invention of clone method can also be applied in all kinds of image combining apparatus.
By above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.
Therefore, the technical scope of this invention is not limited to the content on the instructions, must determine its technical scope according to interest field.
Claims (5)
1, prevent method that digital synthesizing video recorder internal information is duplicated, comprising:
First step, digital synthesizing video recorder internal request is carried out replicate run, and at first prevent that to whether having write in the program that reads or the pairing guidance information of file Copy Info from testing this moment;
Second step according to the testing result in the first step, stops the operation to some file or program selectively.
2, the method that digital synthesizing video recorder internal information is duplicated of preventing as claimed in claim 1 is characterized in that,
Write in the file allocation table information of hard disk and prevented Copy Info, perhaps write in the program information in the CD and prevented Copy Info.
3, the method that digital synthesizing video recorder internal information is duplicated of preventing as claimed in claim 1 is characterized in that,
Second step is confirmed prevents Copy Info, if for allowing Copy Info, file that reads from hard disk or the program information that reads from CD will be replicated.
4, the method that digital synthesizing video recorder internal information is duplicated of preventing as claimed in claim 1 is characterized in that,
Second step is confirmed prevents Copy Info, if for forbidding Copy Info, the duplicating process of file that reads from hard disk or the program information that reads from CD will be stopped selectively, can export an information of forbidding duplicating simultaneously.
5, the method that digital synthesizing video recorder internal information is duplicated of preventing as claimed in claim 1 is characterized in that,
Described method is applicable to that carrying out continuous data in DVD recorder and the incorporate digital synthesizing video recorder of DVR duplicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410089215 CN1787099A (en) | 2004-12-08 | 2004-12-08 | Method for preventing copying information stored in digital synthesizing video recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410089215 CN1787099A (en) | 2004-12-08 | 2004-12-08 | Method for preventing copying information stored in digital synthesizing video recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1787099A true CN1787099A (en) | 2006-06-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410089215 Pending CN1787099A (en) | 2004-12-08 | 2004-12-08 | Method for preventing copying information stored in digital synthesizing video recorder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1787099A (en) |
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2004
- 2004-12-08 CN CN 200410089215 patent/CN1787099A/en active Pending
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