CN102226946A - A read-once record medium and a system with read protecting function - Google Patents

A read-once record medium and a system with read protecting function Download PDF

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Publication number
CN102226946A
CN102226946A CN2011100598543A CN201110059854A CN102226946A CN 102226946 A CN102226946 A CN 102226946A CN 2011100598543 A CN2011100598543 A CN 2011100598543A CN 201110059854 A CN201110059854 A CN 201110059854A CN 102226946 A CN102226946 A CN 102226946A
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China
Prior art keywords
read
data
recording medium
photographic layer
substrate
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CN2011100598543A
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Chinese (zh)
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沈玮仑
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Individual
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Individual
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Priority claimed from US11/344,239 external-priority patent/US7808867B2/en
Priority claimed from US11/344,234 external-priority patent/US7933194B2/en
Priority claimed from US11/373,314 external-priority patent/US20070212511A1/en
Application filed by Individual filed Critical Individual
Publication of CN102226946A publication Critical patent/CN102226946A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to a read-once record medium, comprising: a data substrate, having control data zone and a data zone, and said having pre-record data; a sensitive layer, disposed above said data substrate; a refractive layer, disposed above said sensitive layer; an adhesive layer, disposed above said refractive layer; and a transparent substrate, disposed above said adhesive layer; thereby, the structure of said sensitive layer or said data substrate will be changed when laser beams with specified power emitted from an optical storage device pass through the data substrate and focus on the sensitive layer, and the laser beams will be reflected by the sensitive layer and can not be recognized by the optical storage device. Furthermore, the present invention also provides a system with read protecting function.

Description

The system of read-only recording medium once and band read protecting function
The present patent application is that to be called " system of read-only recording medium once and band read protecting function ", the applying date be that Dec 15, application number in 2006 are dividing an application of 200610168997.7 patent of invention to name.
Technical field
The present invention relates to a kind of read-only recording medium once, relate in particular to a kind of recording medium that has one deck photographic layer, and this recording medium also has control code (control code) in its control data zone, if this recording medium is loaded in the optical storage device, when the laser beam that has certain power of launching from optical storage apparatus, passing this data substrate shines when focusing on this photographic layer, then photographic layer or data substrate structure will be changed (or destroyed), laser beam will be reflected by photographic layer simultaneously, and the laser beam that is reflected can not be discerned by this optical storage apparatus; In addition, the present invention also provides a kind of system with read protecting function.
Background technology
According to prior art, audio file, video file can be play in DVD or CD player then by a kind of simple safety inspection from downloaded usually usually., this simple safety inspection but can be skipped by the user; Therefore, the publisher of DVD or CD can't require the user to download to pay, thereby causes the infringement use of DVD or CD medium to grow with each passing day.
There are some systems or solution at present, can solve the copy protection problem of DVD or CD medium.For example be presented to people's such as Aucsmith the U.S. the 5th, 991, No. 403 patents, just disclosed a kind of method of follow-up compression that be to the coding video data of mpeg compatible, this method comprises becomes an image sets (GOP) to detected many video data frame tissues, this image sets is produced an encryption key pair, and utilize image sets-synchronization to replace (GOA-synchronized substitution) again, transposition (transposition) and some rotational transforms (rotation transformation) are encrypted this video data, and these GOP-synchronizations are replaced, and transposition and rotational transform commentaries on classics then give parametrization by some offsets (offsets) of being derived by the encryption key pair that has produced.
Be presented to the 5th, 915, No. 018 patent of the U.S. of people such as Aucsmith, the key to more employed safety distribution and management in the DVD copy protection pattern has disclosed a kind of cryptographic system and method.A DVD CD the content through overcompression and encryption that it had, writes in the first of CD; And the content-encrypt key of himself being encrypted by second key then is written in outside the zone on the second portion of CD; Like this, this DVD CD promptly can be used to provide content, key and control information to DVD player.
The U.S. the 5th, 991, No. 403 patents are to be the coding video data of follow-up compression to mpeg compatible; And the 5th, 915, No. 018 patent of the U.S. is a kind of cryptographic system and method, is suitable for the key of some safety distribution and the management used in the DVD copy protection pattern., the technology that these patent all is to utilize encryption key or key to manage the encryption or the deciphering of CD or VCD data.But the structure of encryption key or key is all relatively complicated, in addition, and the U.S. the 5th, 915, No. 018 patent also needs to publisher, film manufacturer or the more royalty of Computer Company's payment, so that increase the cost of CD or VCD, thereby the price of CD or VCD can't reduce.
Summary of the invention
So, in order to overcome the above-mentioned shortcoming of prior art, a fundamental purpose of the present invention provides a kind of read-only recording medium once with photographic layer, if this recording medium is loaded in the optical storage apparatus, when the laser beam that has certain power of launching from optical storage apparatus, when passing this data substrate and focusing on this photographic layer, the structure of this photographic layer or this data substrate will be changed (or destroyed), laser beam will be reflected by photographic layer, and the laser beam that is reflected can not be discerned for this optical storage apparatus.
In order to overcome the above-mentioned shortcoming of prior art; another object of the present invention provides a kind of read-only recording medium once with read protecting function; in its control data zone, have a kind of control code of discerning for optical storage apparatus, thereby reach read protection and prevent the purpose of bootlegging.
In order to overcome the above-mentioned shortcoming of prior art, another object of the present invention provides a kind of system with read protecting function, and this system comprises one to be had control data zone in it and have recording medium through the data field of coded data; When recording medium is loaded in the optical storage apparatus, optical storage apparatus will read and the identification control sign indicating number; Thereby if this control code can be identified, this optical storage apparatus is just to decoding through coded data and the data through decoding being exported; If this control code can not be identified, this optical storage apparatus is just directly exporting through coded data.
In order to achieve the above object, the system according to band read protecting function of the present invention contains: one deck has the data substrate of control data zone and data field, and this data substrate also also has the data that some write down in advance; One deck is set at the photographic layer on the data substrate; One deck is set at the reflection horizon on the photographic layer; One deck is set at the bonding coat on the reflection horizon; And one deck is set at the transparency carrier on the bonding coat; Therefore, when the laser beam that has certain power of launching from optical storage apparatus, when passing data substrate and focusing on the photographic layer, the structure of this photographic layer or this data substrate will be changed, laser beam will be reflected by photographic layer, and the laser beam that is reflected can not be discerned for this optical storage apparatus.
Description of drawings
Fig. 1 a is the drawing in side sectional elevation according to the read-only recording medium 10 once of a preferred embodiment of the present invention.
Fig. 1 b is the enlarged drawing according to the read-only recording medium 10 once of a preferred embodiment of the present invention.
Fig. 2 is the block diagram according to the system of the band read protecting function of another preferred embodiment of the present invention.
Embodiment
The system of so-called band read protecting function is meant that the data in this recording medium are promptly destroyed after being read once by an optical storage apparatus, that is the data in this recording medium can't be by bootlegging, so the data in this recording medium can be protected.Now the details to the system of this band read protecting function is described below:
Consult Fig. 1 a and 1b, they illustrate drawing in side sectional elevation and enlarged drawing according to the read-only recording medium once of a preferential embodiment of the present invention respectively.As shown in Figure 1a, read-only recording medium 10 once of the present invention, such as but not limited to being a CD CD, a DVD-ROM CD, a HD DVD-ROM CD or a BD-ROM CD, it contains: one deck data substrate 11, one deck photographic layer 12, one deck reflection horizon 13, one deck bonding coat 14, and layer of transparent substrate 15.
Wherein, data substrate 11 is to make with plastic material, such as but not limited to using polycarbonate (PC), and this data substrate 11 also contains a control data zone 111 and a data field 112 (seeing also Fig. 1 b) on it, the data of record (i.e. burning in advance) are in advance contained in data field 112 simultaneously, such as but not limited to being (some) computer softwares, view data or a voice data.In addition, just record again on the data substrate 11 after these data that write down in advance are encoded, and encoding mechanism (encoding mechanism) is such as but not limited to being: MPEG-1 encoding mechanism, MPEG-2 encoding mechanism, MPEG-4 encoding mechanism or Reed-Soloman encoding mechanism.
Photographic layer 12 is set on the data substrate 11, and light (or light beam) had susceptibility, when from the emitted laser beam that has certain power of optical storage apparatus (not shown), when passing data substrate 11 and focusing on the photographic layer 12, the structure of this photographic layer 12 will be changed (or destroyed).Photographic layer 12 can utilize a certain organic dyestuff to form on this data substrate 11 by the method for rotation brushing, perhaps utilize a certain inorganic alloys material to form on data substrate 11 by injection method, wherein this inorganic alloys material is a certain metal alloy; The power of laser beam is greater than 1.0mW.Wherein, this organic dyestuff can but to be not limited to be cyanine (Cyanine) or phthalocyanine dye (Phthalocyanine) or azo (AZO); And this inorganic alloys material can but to be not limited to be germanium-aluminium (Ge-Al) or silicon-copper (Si-Cu).
Reflection horizon 13 is set on the photographic layer 12, and the laser beam (seeing also Fig. 2) that is emitted from optical storage apparatus 20 can be reflected in reflection horizon 13, and discerns through the visual detector (not shown) of laser light reflected Shu Kewei optical storage apparatus 20.Wherein the reflection horizon 13, such as but not limited to making with silver or silver alloy, because this belongs to prior art, at this this problem are discussed no longer at length.
Bonding coat 14 is set on the reflection horizon 13, is used for adhesion data substrate 11 and transparency carrier 15.
Transparency carrier 15 is set on the bonding coat 14, is to make with plastic material, such as but not limited to polycarbonate (PC), is used for printing or writing picture or literal in the above.
When making read-only once recording medium 10 of the present invention, photographic layer 12 is set on the data substrate 11,12 pairs of light of this photographic layer (or light beam) have susceptibility, from the emitted laser beam that has certain power of optical storage apparatus, when passing data substrate 11 and focusing on the photographic layer 12, the structure of photographic layer 12 structures or data substrate 11 will be changed (or destroyed); And laser beam reflected by photographic layer 12, because the structure of photographic layer 12 is destroyed, this process laser light reflected bundle then can not be discerned by optical storage apparatus, thereby reaches read protection and prevent the purpose of bootlegging.When laser beam was passed data substrate 11 and focused on the photographic layer 12, the wherein reflectivity of photographic layer 12, refractive index or absorb ratio and all will be changed were so discerned by optical storage apparatus 20 through 12 laser light reflected Shu Buneng of photographic layer; Perhaps, when laser beam was passed data substrate 11, data substrate 11 deformed because of thermal effect (may at 300-400oC), made and was discerned by optical storage apparatus via 12 laser light reflected Shu Wufa of photographic layer.
Therefore, the data of the record in advance of recording medium 10 are because the structure of photographic layer 12 will be changed after reading once thereby will be destroyed and can not be discerned by the visual detector of optical storage apparatus 20, like this, the data of record in advance of recording medium 10 just can not be replicated again, and therefore content provider is ready to reduce the price of CD or DVD.So the read-only recording medium 10 once of the present invention can overcome those shortcomings of prior art.
In addition; in order to strengthen read-protected purpose; the control data zone 111 of the read-only recording medium 10 of the present invention also contains: a control code 115 (seeing also Fig. 1 b), this control code can be grant number of producing sequence number, random sequence number or computer software, image file or audio file.When read-only medium 10 are loaded in the optical storage apparatus 20, if optical storage apparatus 20 can not be discerned this control code 115, so optical storage apparatus 20 just can not read the data of record in advance, so can reach read-protected purpose.
Consult Fig. 2, it is the block diagram according to a kind of system with read protecting function of another preferential embodiment of the present invention.As shown in the figure, the system of band read protecting function of the present invention contains: a recording medium 10 and an optical storage apparatus 20.
Wherein, recording medium 10, such as but not limited to being a CD CD, a DVD-ROM CD, a HD DVD-ROM CD or a BD-ROM CD, it contains: one deck has the data substrate 11 (seeing also Fig. 1 b) of control data zone 111 and data field 112 on it; Wherein control data zone has many pieces 113, such as but not limited to being 192 pieces; Each piece 113 has many sectors 114, such as but not limited to being 16 sectors; Each sector has many bytes, such as but not limited to being 2K byte; And data field 112 has through coded data, such as but not limited to being computer software, view data or voice data; The control code that has 4-6 byte length simultaneously is positioned within the sector in those sectors 114.For example be placed in 0 sector or 1 sector.Control code 115 is to be used for discerning for optical storage apparatus 20, and control code 115 can a grant number of producing sequence number, a random sequence number or computer software, image file or an audio file.
Data substrate 11 is to use plastic material, such as but not limited to making with polycarbonate (PC).
Optical storage apparatus 20, such as but not limited to being a CD player/record machine or VCD player/record machine, can load the control code 115 in recording medium and the reading and recording medium in it, and have decoding mechanism (decoding mechanism) (not shown), be used for to decoding through coded data in the data field 112.Wherein the decoding mechanism of optical storage apparatus 20 can with the encoding mechanism Collaboration of recording medium 10, for example, the encoding mechanism of recording medium 10 can but to be not limited to be MPEG-1 encoding mechanism, MPEG-2 encoding mechanism, MPEG-4 encoding mechanism or Reed-Soloman encoding mechanism; And the decoding mechanism of optical storage apparatus 20 can but to be not limited to be MPEG-1 decoding mechanism, MPEG-2 decoding mechanism, MPEG-4 decoding mechanism or Reed-Soloman decoding mechanism.
Optical storage apparatus 20 of the present invention is different with the optical storage apparatus of prior art, and it can launch general power laser bundle that is used for reading and the laser beam of launching certain power.The power of wherein general power laser bundle is about 0.5mW, is used for data in the reading of data district 112.The power of certain power laser beam is about 1.0mW, and the data that are used in reading of data district 112 are destroyed photographic layer 12 afterwards.
In addition, the optical storage apparatus of prior art not only do not comprise and is used for the 112 li decoding mechanism of having passed through coded data in recording medium 10 data fields, nor checks the control code 115 in the control data zone 111.
Optical storage apparatus 20 of the present invention or contain decoding mechanism, be used for being decoded through coded data in the data field 112 of recording medium 10, or when recording medium 10 is loaded in the optical storage apparatus 20, read control code 115 with identification control data district 111.For example, if control code has 4-6 byte byte) length, the manufacturer of recording medium 10 can be the grant number write control data district 111 that produces sequence number, random sequence number or computer software, image file or audio file, and some numerical digit (bit) that has 48 numerical digits (bit) AD HOC then is provided by optical storage apparatus 20 to be discerned; If optical storage apparatus 20 contains decoding mechanism, then it can read control code 115 from control data zone 111; If optical storage apparatus 20 can identification control sign indicating number 115, it will read through coded data, and the back output of being decoded; Perhaps, if optical storage apparatus 20 can not identification control sign indicating number 115, it will read through coded data and directly be exported, so the user sees is not through the screen of the data of decoding (mess code).So, by the mode that combines by recording medium 10 provided by the present invention and optical storage apparatus 20, can reach read protection effectively and prevent the purpose of bootlegging, give publisher, film manufacturer or Computer Company thereby content supplier of the present invention only need pay a spot of royalty; Reason in view of the above, content supplier can be ready to reduce the price of CD or DVD; Therefore the present invention system of having a read protecting function can overcome those shortcomings of prior art.
In addition, in order to strengthen read-protected purpose, read-only recording medium 10 once of the present invention also contains: the photographic layer 12 that one deck is set on the base plate 11 (sees also Fig. 1 a), it can utilize a kind of organic dyestuff to be formed on the base plate 11 by the method for rotation brushing, or utilizes a kind of inorganic alloys material to be formed on the base plate 11 by the method for spraying; When the laser beam that has certain power that emits from optical storage apparatus 20, when passing data substrate 11 and focusing on the photographic layer 12, the structure of photographic layer 12 will be changed (or destroyed); And can not be discerned by optical storage apparatus 20 by the laser beam that photographic layer 12 reflects.Therefore, read-protected purpose can reach; Wherein when the laser beam that has certain power that emits from optical storage apparatus 20, when passing data substrate 11 and focusing on the photographic layer, the reflectivity of photographic layer 12, refractive index or absorb ratio and will be changed; And the power of this laser beam is greater than 1.0mW.
By enforcement of the present invention, this recording medium has one deck photographic layer, and in its control data zone, has control code, if this recording medium is loaded into an optical storage apparatus, when the laser beam that has certain power of launching from this optical storage apparatus, when passing data substrate and focusing on this photographic layer, the structure of this photographic layer or this data substrate will be changed (or destroyed), and laser beam will be reflected by this photographic layer, and is discerned by this optical storage apparatus through laser light reflected Shu Buneng.So the present invention can overcome the defective of the technology of the existing device that prevents unauthorized copying really.
Though the present invention was once narrated by way of example and by a certain preferential embodiment, should understand the present invention and not only be confined to herein these narrations.On the contrary, this instructions is in to be intention modified form miscellaneous and some similar arrangements and process steps all cover, so appended claim scope of this instructions, should with explain the most widely consistent, to such an extent as to like this some modified forms and all similar arrangements and process steps are all included all.
In sum, the present invention in the instructions compares with the structure of routine, really can improve performance, and in addition, it also meets every requirement of the relevant patented claim of Patent Office, so present Patent Office for examining and please authorizing corresponding patent right.

Claims (10)

1. read-only recording medium once, it contains:
One deck data substrate has control data zone and data field on it, and the data that write down in advance;
One deck is set at the photographic layer on the described data substrate;
One deck is set at the reflection horizon on the described photographic layer;
One deck is set at the bonding coat on the described reflection horizon; And
One deck is set at the transparency carrier on the described bonding coat;
Therefore, when the laser beam that has certain power of launching from an optical storage apparatus, when passing described data substrate and focusing on the described photographic layer, the structure of described photographic layer or described data substrate will be changed, and described laser beam can be reflected by described photographic layer, and can not be discerned by described optical storage apparatus through the described laser beam of reflection.
2. the read-only recording medium once of claim 1, wherein said data substrate and described transparency carrier are to make with plastic material.
3. the read-only recording medium once of claim 2, wherein said plastic material is a polycarbonate.
4. the read-only recording medium once of claim 1, wherein said photographic layer is to utilize a kind of organic dyestuff to form on described data substrate by the method for rotation brushing, or utilizes a kind of inorganic alloys material to form on described data substrate by the method for spraying; Wherein, this organic dyestuff is cyanine or phthalocyanine dye or azo; And this inorganic alloys material is germanium-aluminium or silicon-copper.
5. the read-only recording medium once of claim 1, the described power of wherein said laser beam is greater than 1.0mW.
6. the read-only recording medium once of claim 1, wherein said recording medium is a CD CD, a DVD-ROM CD, a HD DVD-ROM CD or a BD DVD-ROM CD.
7. the read-only recording medium once of claim 1, wherein when described laser beam is passed described data substrate and is focused on the described photographic layer, the reflectivity of described photographic layer, refractive index or absorb ratio and will be changed.
8. the read-only recording medium once of claim 1, wherein said control data zone also contains a control code.
9. the read-only recording medium once of claim 8, wherein said control code are one and produce sequence number, a random sequence number or a grant number.
10. the read-only recording medium once of claim 8, the wherein said data of record in advance are to be encoded to be written into described data field then, and encoding mechanism wherein is MEPG-1 encoding mechanism, MEPG-2 encoding mechanism, MEPG-4 encoding mechanism or Reed-Soloman encoding mechanism.
CN2011100598543A 2006-02-01 2006-12-15 A read-once record medium and a system with read protecting function Pending CN102226946A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US11/344,239 2006-02-01
US11/344,239 US7808867B2 (en) 2006-02-01 2006-02-01 System with read protecting function
US11/344,234 2006-02-01
US11/344,234 US7933194B2 (en) 2006-02-01 2006-02-01 Read-once record medium
US11/373,314 US20070212511A1 (en) 2006-03-13 2006-03-13 Read-once record medium and a system with read protecting function
US11/373,314 2006-03-13

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN2006101689977A Division CN101038762B (en) 2006-02-01 2006-12-15 A read-once record medium and a system with read protecting function

Publications (1)

Publication Number Publication Date
CN102226946A true CN102226946A (en) 2011-10-26

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CN2011100598543A Pending CN102226946A (en) 2006-02-01 2006-12-15 A read-once record medium and a system with read protecting function

Country Status (1)

Country Link
CN (1) CN102226946A (en)

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Application publication date: 20111026