CN2296058Y - Mass compact disc - Google Patents
Mass compact disc Download PDFInfo
- Publication number
- CN2296058Y CN2296058Y CN97218955U CN97218955U CN2296058Y CN 2296058 Y CN2296058 Y CN 2296058Y CN 97218955 U CN97218955 U CN 97218955U CN 97218955 U CN97218955 U CN 97218955U CN 2296058 Y CN2296058 Y CN 2296058Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- vcd
- compact disc
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Optical Recording Or Reproduction (AREA)
Abstract
The utility model provides a novel large-capacity compact disc. The external size of the utility model is the same as the size of the existing VCD compact disc, a plurality of recording tracks are engraved on the surface, and data is recorded on the recording tracks. The space between tracks is between 1.10 to 1.30 microns, the length of the minimum pit is form 0.3 to 0.5 micron, the length of the maximum pit is from 1.3 to 1.8 microns, and the data can be recorded as pressed and engraved indentations. The utility model has the advantages of low cost and large capacity. When the utility model is applied to a VCD machine, the effect of the output image of the utility model on a general TV is the same as that of a DCD machine, but the cost is much lower than the DVD machine, and the manufacture is very convenient.
Description
The utility model relates to a kind of structure of CD, especially a kind of jumbo CD.
At present, along with high-tech develops rapidly, CD owing to characteristics such as its memory capacity are big, and is widely used in the storage Various types of data, as image, sound and other information etc. as the medium of canned data.Existing its volume ratio of VCD CD DVD CD is low, image analytic degree is also lower simultaneously, but the cost of DVD CD is higher, its corresponding fetch equipment is relative complex also, cost is higher, and the image analytic degree of DVD player is higher than the resolution of general televisor far away, thus can't on general televisor, show the resolution of DVD player image, so itself and be unsuitable for occasion such as general family and use.
Fundamental purpose of the present utility model is that a kind of jumbo CD is provided under the condition that does not increase cost, and its basic tankage can reach 1.7G.
Another purpose of the present utility model is that the picture quality effect of using these novel huge capacity compact discs to export on improved VCD machine is the same with DVD player, and does not increase cost on general televisor.
A purpose more of the present utility model is to make this disks of monolithic have the information storage that is equivalent to two VCD CDs, can reduce the cost of canned data thus.
The purpose of this utility model is achieved in that a kind of novel huge capacity compact discs, and its external dimensions is carved with a plurality of recording tracks with existing VCD CD on the surface, record data on it.Its orbit interval is between 1.10～1.30 μ m, and minimum pit length is 0.3～0.5 μ m, and maximum pit length is 1.3～1.8 μ m.
Described data can be recorded into to pressing indentation.
The utility model cost is lower, and capacity is bigger, and the effect of the output image when it is applied to the VCD machine is the same with DVD player, but cost is more much lower than DVD player, and its manufacturing is very convenient.
Below in conjunction with accompanying drawing and specific embodiments the utility model is described in further detail.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model diagrammatic cross-section.
Referring to Fig. 1,2, be a kind of preferred embodiment of the utility model, it is a kind of modified CD on CD-ROM (VCD) CD basis.This CD has the multitrace seismogram track.It is on surface 1, the recording track spacing is 1.2 μ m (in 1.10～1.30 mu m ranges), the minimum Pit length of indentation 2 is 0.46 μ m (in 0.3～0.5 mu m range), maximum Pit length is 1.5 μ m (in 13～1.8 mu m ranges), capacity is 1.7G, and is bigger 1.6 times than the capacity of general CD-ROM (VCD) CD.
The utility model can be produced on present CD-ROM (VCD) optical disc production apparatus.On present CD-ROM (VCD) disc accessing, do some and needn't change the improvement of hardware device, promptly can read the data of the utility model storage.It can store 120 minutes live image (528 * 480) and voice signal.
The resolution of at present general televisor is 500 * 300.When the utility model is applied to the VCD machine, because the physical size of optical track pitch, minimum Pit and maximum Pit is done to dwindle, therefore data capacity that can document image increases greatly, it is very careful that image can be described, make the resolution of output image reach 528 * 480 (480 is 240 interpolated points), the resolution that is higher than general televisor is so can reach expressible optimum picture quality on general televisor.And the resolution of the output image of VCD machine has only 352 * 240 at present, so picture quality is lower.The resolution of the output image of DVD player is 704 * 480, is higher than the resolution of general televisor far away, so the resolution of the image that can show on general televisor has only 500 * 300.This shows that on general televisor, the performance of the output image when the utility model is applied to the VCD machine is the same with DVD player.
The utility model is applicable to deposits Various types of data, such as the note of image, sound and other information Record.
Existing monolithic VCD optical disc storage information content is 650M, and reproduction time is 74 minutes, The output image resolution is 325 * 240. This disks of monolithic information memory capacity is 1.7G, Reproduction time is 135 minutes, and the output image resolution is 528 * 480. The Structure Comparison of existing VCD CD and this mass compact disc is as follows:
| The VCD CD | Mass compact disc | |
| Track pitch | 1.6μm | 1.2μm |
| Min pit length | 0.8μm | 0.4μm |
| Max pit length | 3.0μm | 1.5μm |
| Total capacity | 650M | 1.7G |
The contrast of the utility model effect and other products:
| Disks | VCD | DVD | |
| Resolution | 528 * 480 (inserting point) | 352×240 | 704×480 |
| 120 minutes audiovideo capacity | 1.6G | 1.06G | 2.7G |
| CD sheet number | Monolithic | Biplate | Monolithic |
Claims (2)
1, a kind of novel huge capacity compact discs, its external dimensions is carved with a plurality of recording tracks with existing VCD CD on the surface, record data on it, it is characterized in that: its orbit interval is between 1.10～1.30 μ m, and minimum pit length is 0.3～0.5 μ m, and maximum pit length is 1.3～1.8 μ m.
2, novel huge capacity compact discs according to claim 1 is characterized in that: data can be recorded into to pressing indentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97218955U CN2296058Y (en) | 1997-06-09 | 1997-06-09 | Mass compact disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97218955U CN2296058Y (en) | 1997-06-09 | 1997-06-09 | Mass compact disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2296058Y true CN2296058Y (en) | 1998-10-28 |
Family
ID=33935120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97218955U Expired - Fee Related CN2296058Y (en) | 1997-06-09 | 1997-06-09 | Mass compact disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2296058Y (en) |
-
1997
- 1997-06-09 CN CN97218955U patent/CN2296058Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |