CN1215472C - Small-hole compact disc for data memory and access - Google Patents
Small-hole compact disc for data memory and access Download PDFInfo
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- CN1215472C CN1215472C CNB031377378A CN03137737A CN1215472C CN 1215472 C CN1215472 C CN 1215472C CN B031377378 A CNB031377378 A CN B031377378A CN 03137737 A CN03137737 A CN 03137737A CN 1215472 C CN1215472 C CN 1215472C
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Abstract
The present invention relates to a small hole optical disk for storing and reading data, which belongs to the technical field of high-density digital optical storage. The small hole optical disk for storing and reading data comprises a positioning hole, a basal layer, a covering layer and an information recording layer, wherein the positioning hole is arranged in the rotating center of the optical disk, and the basal layer, the information recording layer and the covering layer are stacked up with each other in sequence; the diameter of the positioning hole is 0.1MM to 15MM, and the positioning hole is in a circle, rectangle or any other geometric shapes. The small hole optical disk for storing and reading data also comprises an ornamental area, wherein the ornamental area is arranged on the periphery of the optical disk and is in a square, circle or any other geometric shapes. The material of the periphery of the rotating center of the small hole optical disk is the same as or different from that of other parts of the optical disk. The small hole optical disk provided by the present invention increases the data storage area of the optical disk so as to have large storage capacity; the present invention can be used for optical information pickup / recording devices or other information pickup / recording mechanisms of optical disks.
Description
Technology utilizes the present invention to design a kind of aperture CD that is used for data storage and reads, and belongs to the high-density digital field of optical storage technology, particularly the portable light memory technology.
The background technology optical disc storage is one of main means of high density information storage.Compare with conventional storage media such as disk, tapes, CD has that memory capacity is big, cost of manufacture is low, be not afraid of magnetic and heat, long, replaceable, easy distribution of life-span, advantage such as not fragile.The data of video disc recording can be preserved decades, therefore can replace floppy disk to do the software storage, replace tape to make long preservation of document and data or the like.And high-density recordable optical disc and the appearance that can wipe re-write optical disk storage have enlarged the range of application of CD storage technique especially, can replace flexible plastic disc and tape at aspects such as exchange, publication, distribution, demonstration, record, files comprehensively.
Yet,, more and more higher requirement has been proposed for storage density, capacity and the volume of CD in recent years along with the fast development of correlation techniques such as information industry, multimedia technology, electronics, Precision Machining.Under the background of prior art, having to greatest extent, the optical disc storage ability is very important.And according to the international standard of existing various optical disc storage, no matter be CD CD or DVD CD, no matter be the CD of 120mm diameter or the CD of 80mm diameter, to a certain extent, all exist the waste of optical disc storage ability.
International standard (ISO/IEC10149:1995, ISO/IEC 16448:1999, ISO/IEC 16449:1999, ISO/IEC 16824:1999, ISO/IEC 20563:2001 or the like) by optical disc storage, be not difficult to find, in existing various optical disks, the storage that all can not be used for data to certain diameter (being about about 44mm) from the center with read, and can only be used for the clamping, fixing and read transition of optical disk.Existing various CD, its radial structure as shown in Figure 1,1 is pilot hole among the figure, the 2nd, zone of transition, the 3rd, Lead-In Area, the 4th, the data field, the 5th, leading-out zone, the 6th, basalis, the 7th, no matter overcoat is CD CD or DVD CD, no matter be the CD of 120mm diameter or the CD of 80mm diameter, since consider disc clamping, fix, read transition, read transition or the like problem, the hole that must to possess an international standard at the center of disc be diameter 15mm, and be various zone of transition and clamp area around this hole.Even and, also need further to be divided into Lead-In Area, data field and leading-out zone in inside, effective information district.Therefore, real active data district only from diameter 48mm to diameter 76mm, the area of disc has only 54.25% storage that is used for user data, memory capacity is wasted greatly.No matter analyze from mathematics, still from economic angle, this all is to a kind of great waste of storage space.
Summary of the invention the objective of the invention is to propose a kind of aperture CD that is used for data storage and reads, change the structure of disc, make full use of data storage areas near the disc center, thereby increase substantially the memory capacity of existing disc, fully to satisfy the requirement of user to the memory capacity of storage medium.
The aperture CD that is used for data storage and reads that the present invention proposes, comprise pilot hole, basalis, overcoat and information recording layer, described pilot hole is located at the rotation center of CD, basalis, information recording layer and overcoat overlap together successively mutually, and the diameter of pilot hole is 0.1mm～15mm.
The external diameter of above-mentioned aperture CD can be 5mm～120mm, and its thickness can be 0.2mm～3mm.
The shape of the pilot hole of above-mentioned aperture CD can be circle, rectangle or other any geometric configuratioies.
The information recording layer of above-mentioned aperture CD therefrom is followed successively by leading-out zone, data field and Lead-In Area in mind-set garden week, and also therefrom mind-set garden week is followed successively by Lead-In Area, data field and leading-out zone, and perhaps whole information recording layer is the data field.The circular information track or the spirality information track of closely arranging is carved with in the data field.
The tectal thickness of above-mentioned aperture CD is 0.01mm～3mm.
Above-mentioned aperture CD also comprises ornamental area, and ornamental area is located at the CD periphery, and ornamental area is square, circular or other any geometric configuration.
The material of the periphery of above-mentioned aperture CD rotation center is identical with the material of CD other parts, or different.
The aperture CD that is used for data storage and reads that the present invention proposes only have the aperture of diameter less than 15mm in CD, and the aperture in the CD is positioned at the rotation center of CD.And in the CD active data zone closely be centered around aperture around, to be used for data storage.But this aperture CD can be read-only optical disc CD-WORM, the CD that is used for data storage and reads such as rewritable disk repeatedly.Because the aperture CD that the present invention proposes has increased the optical disc data storage area, therefore have bigger memory capacity, the optical information that goes for the normal optical disk driver is picked up/pen recorder or other information pickup/recording mechanisms.
Because the aperture CD that is used for data storage and reads that the present invention proposes, can be under the prerequisite that realizes same data storage capacity, possesses more small CD area, therefore also have enough storage development potentialities, for example, but the aperture CD that the littler capacity of area is enough big, can be applicable to other individual digital portable consumer electronic products, as walkman, see with oneself, E-Book, mobile phone, PDA, notebook, number/camera or the like, become these product high-efficiency reliable external memory means, thereby occupy more wide consumer electronics market.
The aperture CD that is used for data storage and reads of proposition of the present invention, its compact disk structure, data recording process and mode, data reproduction process and mode are applicable to CD and other any CDs with data storage and read functions of any existing international standard.
Description of drawings
Fig. 1 is the profile diagrammatic cross-section of existing normal optical disk.
Fig. 2 is the profile diagrammatic cross-section of the aperture CD that designs of the present invention.
Fig. 3～Figure 11 is the structural representation of the embodiment of the invention.
Among Fig. 1～Figure 11, the 1st, pilot hole, the 2nd, zone of transition, the 3rd, Lead-In Area, the 4th, data field, the 5th, leading-out zone, the 6th, basalis, the 7th, overcoat, the 8th, concentric circular tracks, the 9th, spiral tracks, the 10th, the ornamental area in the disc, the 11st, the block of information in the disc, the 12nd, the periphery of CD rotation center, H1 are tectal thickness, and H2 is the gross thickness of disc, D1 is the diameter of pilot hole, and D2 is the external diameter of disc, and D3 is the external diameter of CD rotation center periphery.
Concrete aforesaid way
The aperture CD that is used for data storage and reads that the present invention proposes, its structure as shown in Figure 2, comprise pilot hole 1, basalis 6, overcoat 7 and information recording layer, pilot hole 1 is located at the rotation center of CD, basalis 6, information recording layer and overcoat 7 overlap together successively mutually, and the diameter D1 of pilot hole 1 is 0.1mm～15mm.
The outer diameter D 2 of above-mentioned aperture CD can be 5mm～120mm, and its thickness H2 can be 0.2mm～3mm.
The shape of the pilot hole of above-mentioned aperture CD can be circle, rectangle or other any geometric configuratioies, and as shown in Figure 3, pilot hole is shaped as rectangle, Figure 4 shows that heart.
The information recording layer of above-mentioned aperture CD therefrom is followed successively by leading-out zone 5, data field 4 and Lead-In Area 3 mind-set garden week, as shown in Figure 2, also therefrom be followed successively by Lead-In Area 3, data field 4 and leading-out zone 5 mind-set garden week, as shown in Figure 5, perhaps whole information recording layer is data field 4, as shown in Figure 6.The circular information track 8 of closely arranging is carved with in the data field, as shown in Figure 7, or is carved with spirality information track 9, as shown in Figure 8.
The thickness of the overlayer H1 of above-mentioned aperture CD is 0.01mm～3mm.
Above-mentioned aperture CD can also comprise ornamental area 10, and as Fig. 9 and shown in Figure 10, ornamental area 10 is located at the periphery of interblock 11, and ornamental area 10 can be square, circle or other any geometric configuration.
The material of the periphery of above-mentioned aperture CD rotation center is identical with the material of CD other parts, or different.The material of aperture CD rotation center shown in Figure 11 is different with the material of CD other parts.
The aperture compact disk structure that the present invention proposes is applicable to any optical information recording medium.As example, the present invention is an example with existing 80mm optical disk only, only has the center pit (as D1=5mm) of a diameter between 0.1mm～15mm at the rotation center of disc.This hole can be used for location or other purposes of optical disk.And except that this aperture, other zones of disc can be used for carrying out data storage.Divide no longer in detail in the optical disk such as center pit, zone of transition, clamp area etc. be used for that disc is fixed, the zone of clamping and transition.CD active data zone closely around this center pit, can be spirality zone circular or that closely arrange.Therefore, the outward flange (diameter 77mm) from the center pit of disc to CD all is the block of information of CD.
Aperture CD of the present invention, its block of information also are divided into three zones further according to different effects, to outward flange, are followed successively by leading-out zone 5, data field 4 and Lead-In Area 3 from the center of CD.Equally, control information that can recording disk in Lead-In Area, published information, content of copyright or the like; In the data field, can store and write down various user data; Leading-out zone is the zone that guarantees that CD can continuously smooth ground sense data.
Outermost edge from the leading-out zone to the CD (diameter 80mm) is not considered as data storage yet, but can be used as other purposes, as fixing and clamping or the like of disc.
As can be seen from Figure 2, because this aperture CD that the present invention proposes only has the center pit 1 (this center pit can be used as location or other function of disc) of a diameter D1 between 0.1mm～15mm at the center of disc, therefore, the aperture CD need not by traditional center pit-zone of transition realize disc clamping, fix, read transition and read transition, no longer include bigger center pit in the disc and around the various zone of transition and the clamp area in this hole.Begin to be used as the effective information district from the disc center pit up to the disc edge.Consider the inside, effective information district in aperture CD shown in Figure 2, the division of Lead-In Area, data field and leading-out zone is also arranged, wherein the scope of data field at least can (as center-hole diameter be 5mm outside center pit, then the data field at least can be from 6mm) to diameter 76mm, therefore, the disc area has at least 89.68% to be the real active data district that can be used for storage of subscriber data.As seen comparison diagram 2 and Fig. 1 adopt the aperture CD, and its memory capacity can be greatly improved.
Obviously, disc structure shown in Figure 2 can be applied to any existing CD.As be applied in the CD standard optical disc, single face memory capacity can improve 65% from original 650MB, reaches 1.07GB; And be applied in the dvd standard CD, single face memory capacity then can improve 65% from original 4.7GB, reaches 7.75GB.
According to different applications, the disc thickness of this aperture CD that the present invention proposes can be between 0.2mm～3mm, for example 1.2mm; The outside dimension of disc between 5mm～120mm, 78mm for example; Tectal thickness between 0.01mm～3mm, 0.6mm for example.
The distribution schematic diagram of a kind of circular information track of aperture CD of the present invention, as shown in Figure 7, the information track in Lead-In Area, data field, the leading-out zone is to be the different concentric circular tracks 8 of countless diameters in the center of circle with the disc center.All data information memory are on these circular information tracks.
Fig. 8 is in one embodiment of the present of invention, the distribution schematic diagram of spirality information track.As shown in the figure, in the Information Level of the aperture CD that the present invention proposes, the information track in Lead-In Area, data field, the leading-out zone is the spiral tracks 9 of closely arranging.All data information memory are on these spiral information tracks.
The profile that Figure 9 shows that aperture CD of the present invention is an embodiment of rectangle.As shown in the figure, the profile of the aperture CD among this embodiment is a rectangle, and wherein, zone 10 is the ornamental area of disc, and zone 11 is the block of information in the disc.Also can be as shown in figure 10, it is heart-shaped that the profile of aperture CD is approximately, and wherein, zone 10 is the ornamental area in the disc, and zone 11 is the interblock in the disc.
The material of aperture CD rotation center periphery of the present invention, identical with the material of CD other parts as shown in figure 11, or different.Wherein, zone 12 is the periphery of CD rotation center.According to different application, the material of CD rotation center periphery does not limit (as being magnetic material, metal material etc.), distributed areas not to limit that (D3 gets final product in reasonable range, as the disc external diameter is 80mm, and the center pit external diameter is 10mm, and then D3 can be 15mm).The material of CD rotation center periphery is different with CD other parts material, can be used for other purposes such as disc is located, disc is false proof.
Fig. 3 represents that the hole shape of aperture CD of the present invention is an embodiment of rectangle.As shown in the figure, the hole shape of the aperture CD among this embodiment is a rectangle, and wherein, zone 10 is the ornamental area in the disc, and zone 11 is the interblock in the disc.
Fig. 4 aperture of the present invention represents that the hole shape of CD is an embodiment of arbitrary shape.As shown in the figure, it is heart-shaped that the hole shape of the aperture CD among this embodiment is approximately, and wherein, zone 10 is the ornamental area in the disc, and zone 11 is the interblock in the disc.
Claims (4)
1, a kind of aperture CD that is used for data storage and reads, it is characterized in that this CD comprises pilot hole, basalis, overcoat and information recording layer, described pilot hole is located at the rotation center of CD, basalis, information recording layer and overcoat overlap together successively mutually, and the diameter of pilot hole is 0.1mm～5mm.
2, aperture CD as claimed in claim 1, it is characterized in that wherein pilot hole be shaped as circle.
3, aperture CD as claimed in claim 1, therefrom mind-set garden week is followed successively by leading-out zone, data field and Lead-In Area to it is characterized in that wherein said information recording layer.
4, aperture CD as claimed in claim 1 is characterized in that described tectal thickness is 0.6mm～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031377378A CN1215472C (en) | 2003-06-23 | 2003-06-23 | Small-hole compact disc for data memory and access |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031377378A CN1215472C (en) | 2003-06-23 | 2003-06-23 | Small-hole compact disc for data memory and access |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1457053A CN1457053A (en) | 2003-11-19 |
| CN1215472C true CN1215472C (en) | 2005-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031377378A Expired - Fee Related CN1215472C (en) | 2003-06-23 | 2003-06-23 | Small-hole compact disc for data memory and access |
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| Country | Link |
|---|---|
| CN (1) | CN1215472C (en) |
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- 2003-06-23 CN CNB031377378A patent/CN1215472C/en not_active Expired - Fee Related
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| CN1457053A (en) | 2003-11-19 |
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