CN101317223A - System and method for reading/writing data on optical disk by a plurality of light spots - Google Patents
System and method for reading/writing data on optical disk by a plurality of light spots Download PDFInfo
- Publication number
- CN101317223A CN101317223A CNA2006800447447A CN200680044744A CN101317223A CN 101317223 A CN101317223 A CN 101317223A CN A2006800447447 A CNA2006800447447 A CN A2006800447447A CN 200680044744 A CN200680044744 A CN 200680044744A CN 101317223 A CN101317223 A CN 101317223A
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- Prior art keywords
- luminous point
- read
- write
- track
- luminous
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1362—Mirrors
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Abstract
The present invention relates to a method and system of reading/writing data on an optical disc by a plurality of spots positioned along inner tracks to outer tracks of the optical disc. The method comprises the steps of detecting successively that each spot has reached a data area previously read/written; and moving the spot to a position adjacent to the current outermost spot if the reading/writing is done from inner to outer tracks, or to a position adjacent to the current innermost spot if the reading/writing is done from outer to inner tracks.
Description
Technical field
The present invention relates to a kind of on CD the method and system of read/write data, more particularly, relate to the method and system of a plurality of luminous points of a kind of usefulness read/write data on CD.
Background technology
Nowadays, relatively low and data storage capacity is relatively large because of its cost becomes a kind of data carrier that is widely used in storage multimedia audio/video information for CD.Therefore, because the data that are stored on the CD can read sooner, the data that perhaps are stored on the CD can write sooner, have become an important improvement factor so improve data rate.
A kind of method that improves the CD-ROM drive data rate is to use a plurality of parallel luminous points that read or write a plurality of disc tracks.
Because the track structure of most of CDs is spiral, so luminous point can run into the part of the track that another luminous point read or write, shown in Figure 1A and Figure 1B.
Figure 1A is the synoptic diagram that shows a kind of like this situation: luminous point A begins recording/reading data on CD from the section start of block 1, and luminous point B then begins recording/reading data on CD from the section start of block 5.Luminous point A and B be record/read so concurrently always, arrives up to luminous point A till the section start of block 5, shown in Figure 1B.In other words, luminous point A arrives originally the block by luminous point B record/read.For fear of luminous point A new data of record on, need to shift luminous point this moment originally by the zone of luminous point B record/read.
This transfer generally includes all luminous point mobile phases distance together.The advantage of this spot displacement strategy is that it is very easy to implement, and this is because only need the radial displacement object lens.0 840 294 A2 numbers (in May, 1998 is open for European patent application EP, by Samsung Electronics Co., Ltd. submit to) disclosed a kind of multiple road scan method of utilizing a plurality of luminous points to carry out light pick-up, wherein just used this spot displacement strategy.
But its shortcoming is, must carry out the transfer (for the system that has between Nb luminous point and luminous point at a distance of Ng bar track) of (Nb-1) Ng-1 bar track, just can read or write all data.Therefore, the data rate of this method be limited in each luminous point data rate Nb-1/Ng doubly.In fact, Ng is generally 1, thereby data rate gain will be limited to Nb-1.
Therefore, we expect and can implement the transition strategy of new disk read/write in existing CD-ROM drive, so that surpass the above-mentioned data rate limit, thereby satisfy the demand of huge raising read/write data speed.
Summary of the invention
Target of the present invention provides the method and system of a plurality of luminous points of a kind of usefulness read/write data on CD, so that improve read/write data speed.
According to one embodiment of present invention, disclose a kind of usefulness a plurality of along the disk inner track to external orbital the location luminous points and on CD the method for read/write data.This method may further comprise the steps: detect each luminous point in succession and all arrived original data area of read/write; If read/write track is internally carried out to external orbital, luminous point is moved to and current outermost luminous point position adjacent, if read/write is carried out to inner tracks from external orbital, luminous point is moved to and current inner most luminous point position adjacent.
According to one embodiment of present invention, disclose a kind of usefulness a plurality of along the disk inner track to external orbital the location luminous points and on CD the system of read/write data.This system comprises: a pick-up unit is used for detecting in succession each luminous point and has all arrived original data area of read/write, and produces a detection signal; With an actuating device by this detection signal triggering, be used for traveling light spot, if read/write track is internally carried out to external orbital, luminous point is moved to and current outermost luminous point position adjacent, if read/write is carried out to inner tracks from external orbital, luminous point is moved to and current inner most luminous point position adjacent.
In the prior art, the raising of data rate is limited in Nb-1/Ng doubly, and in contrast to this, transition strategy according to the present invention makes data rate improve Nb doubly.In other words, the transition strategy of traveling light spot can improve the data rate that carries out read/write on CD separately.
In addition, owing to be not all mobile phase same distances simultaneously of all luminous points,, thereby produce a kind of cost-effective solution so this traveling light spot is tactful easy to implement.
Graphic and claims description of this invention according to following reference, other targets of the present invention and effectiveness will become apparent, and the reader can fully understand the present invention.
Description of drawings
Figure 1A and Figure 1B are that graphic extension shows that a luminous point runs into the synoptic diagram of the situation in the zone of being read or being write by another luminous point.
Fig. 2 A-2D graphic extension usefulness spot displacement strategy according to an embodiment of the invention comes CD is carried out each stage that many luminous points are read.
Fig. 3 is that graphic extension is showed with a reflection mirror array and shifted synoptic diagram from each luminous point of a laser array.
Fig. 4 is the synoptic diagram that the spot arrangement on the CD is showed in graphic extension.
Fig. 5 shows that the angle of the catoptron sawtooth pattern of following in time shifts.
Fig. 6 is the block schematic diagram that the structure of the closed-loop control system that is used for controlling the luminous point on the CD is showed in graphic extension.
Fig. 7 be graphic extension show according to one embodiment of the invention under open loop control on CD the schematic flow diagram of the method for reading of data.
Above-mentioned graphic in, identical, similar or corresponding element of same reference numerals indication or function.
Embodiment
Hereinafter describe technical measures of the present invention in detail by embodiment with reference to graphic.
It should be noted that the present invention both can be used for reading CD, can be used for writing CD again.In the present embodiment, for the purpose of simple, use " reading ".It will be understood by one of ordinary skill in the art that in this instructions that everywhere " reading " can change " writing " into.
Fig. 2 A to 2D graphic extension spot displacement strategy according to an embodiment of the invention comes CD is carried out each stage that many luminous points are read.With apart three luminous point A, B, C of a track illustrate this strategy each other.These three luminous points of luminous point A, luminous point B and luminous point C are located to external orbital along the inner tracks of CD, for example respectively on track T1, T2 and T3, and the direction along arrow indication among Fig. 2 A reads track (among Fig. 2 B-2D concurrently, the zone of having read indicates shade), wherein remain radially the constant distance of at least one track apart between all luminous points.Pick-up unit detects the position of each luminous point in succession and produces detection signal.
In case luminous point A arrives the part of the previous track that has been read by another luminous point, shown in Fig. 2 A, the data that luminous point A reads will be useless, and can produce a detection signal, indication must traveling light spot A so that continue reading of data.In the present embodiment, actuating device responds this detection signal traveling light spot A, if read/write internally track carry out to external orbital, that just moves to luminous point A the position of adjacent with current outermost luminous point (that is the next one); If read/write is carried out to inner tracks from external orbital, that just moves to luminous point A the position of adjacent with current inner most luminous point (that is the next one).In this example, shown in Fig. 2 B, luminous point A is moved to track T4, promptly at the next one of luminous point C.
Should note, term " adjacent " means the next one that the luminous point that is moved will navigate to current most external/inner most luminous point, and will with described current most external/inner most luminous point at a distance of a track (shown in the example that Fig. 2 lifted) or a plurality of tracks (for example, at each luminous point each other under the situation of one or more track).
Other luminous points are used the strategy identical with luminous point A.For example, shown in Fig. 2 C, the part of the track that has been read before luminous point B also runs into.A is similar to luminous point, also luminous point B is moved to track T5, shown in Fig. 2 D.
About above-mentioned implementation of strategies, there is several different methods can be used for implementing this hopping strategy.But important part is control each luminous point separately.
How Fig. 3 is graphic extension realizes that by reflection mirror array thereby hopping strategy is to shift the synoptic diagram that each luminous point in two laser systems improves the data rate of CD-ROM drive.This system comprises a laser array with two lasing light emitters 4 and 5.For from this laser array emission laser beam (seeing the dotted line Fig. 3), come these laser beams of deflection with a reflection mirror array.This reflection mirror array comprises two catoptrons 1 and 2.Catoptron 1 deflection comes the laser beam A of self-excitation light source 5, and catoptron 2 deflections come the laser beam B of self-excitation light source 4.The rotatable low-angle α 1 of each catoptron in the catoptron 1 and 2, α 2, turning axle 3 approximately are arranged in the plane through the optical axis of laser beam.
By a catoptron in rotating mirror 1 and 2, the laser beam after this mirror deflection changes, and controls the corresponding luminous point on the CD whereby.For example, if catoptron is rotated counterclockwise around axle 3, then luminous point will move towards the CD edge.Otherwise luminous point will move towards the center.In this way, shift each luminous point with reflection mirror array from laser array.A preferred embodiment of the present invention is to locate each luminous point along the direction that is almost tangent line.Why favourable doing like this is because it makes during the spot displacement machinery of each assembly move and minimizes, and has therefore simplified actuation process.
Though this transfer is not the possible short branch that jumps to next track from last track, difference is very little, and can not have problems in practice.This means that turning axle needn't very accurately be aimed at, thereby simplified the structure of reflection mirror array.
In order to make each catoptron only reflect laser beam from a lasing light emitter, catoptron must be placed near laser array, the still underlapped distance of light beam.Therefore, small mirrors (for example, width and highly be about the 50-100 micron) is favored, because it has such advantage: catoptron can very rapidly shift, and can be to form an assembly in laser array is integrated in same case.Thereby provide a kind of in the optical beam path and more simply should be used for carrying out the present invention.
This reflection mirror array also can be placed on other positions in the light path.For example, in order to form the light beam of non-overlapping copies, need to form the telescope of focus point.Then, reflection mirror array is placed near these focus points.
In the above-described embodiments, shift each luminous point with reflection mirror array.Perhaps, also can shift each luminous point, for example with one group of lens that are used for changing the orientation of laser beam with other members.Another kind of possible solution is, by utilize with the vertical plane of optical axis in Liquid Crystal Module control each different being parallel to each other and the deflection angle of the light beam of non-overlapping copies, thereby manage the transfer of each luminous point.In addition, described Liquid Crystal Module has constant refractive index gradient.Therefore, change refractive index gradient, also will change beam angle by the voltage that changes on the module.
In an embodiment of the present invention, light source is corresponding to laser array.Also can use other light sources in the embodiments of the invention, for example through grating division or through the single beam laser source of collimated.Specific, come the deflection collimated laser beam relatively to be fit to a read apparatus with reflection mirror array.Perhaps, also can form light source with acousto-optic modulator, described acousto-optic modulator can split into incident beam light beam or the discrete laser that has difference (and variable) angle through ovennodulation, and the sets of beams of this discrete laser is synthesized same light path.
According to one embodiment of the invention, preferably allow each catoptron after each the jump, all slowly turn back to its starting position, because if luminous point runs into another reading field, then may need to jump once more.Otherwise the repetitive displacement luminous point can excessively increase the transfer of catoptron.The conventional radial tracking system of inclusion mirror actuator can make all luminous points all be retained on its track separately, and catoptron then turns back to its initial position.
Fig. 4 shows the typical arrangement of luminous point on CD, so that explain the selection result of the turning axle that approximately is positioned at the laser beam plane.For example, at a distance of 10 μ m, and track space is 320nm (for example, according to a blu-ray disc standard) between luminous point.Therefore, each luminous point on a line, only with track at a slight angle.After the turning axle rotation of a catoptron in its optical axial plane at laser array, the transfer of luminous point vertical with this line (as shown by arrows).
Fig. 5 shows that the angle of the catoptron sawtooth pattern of following in time shifts, and wherein, α 1, α 2 represent the anglec of rotation of catoptron, shown in solid line and dotted line.As shown in Figure 5, control each catoptron separately.In addition, on behalf of catoptron, droop line turn back to the stage of its starting position, and sharply riser is then represented the stage of transfer.
In another embodiment, catoptron more promptly turns back to its initial position, remains unchanged at short notice then.Depend on the variation (for example, depending on the CD-ROM drive operating mode, i.e. Constant Angular Velocity or constant linear velocity) of CD swing circle (revolution time), these two kinds of methods all may easier enforcement.
With actuator for objective lenses luminous point is focused on its track, this actuator for objective lenses is the part of typical radial feedback loop control system normally.
Fig. 6 is the block schematic diagram of showing the structure of the closed-loop control system that is used for controlling the luminous point on the CD.This system comprises optical device 601, this optical device 601 comprise light path, CD and have photodetector and some other electron device return light path.Optical device 601 is transferred to radial tracking error generator 602 with measurement result, this radial tracking error generator 602 produces an electric signal that is called radial error signal, this signal more or less and the distance between luminous point on the CD and the data-track center proportional.This distance can be adjusted the radially mobile object lens of this radial actuator 603 (that is actuator for objective lenses) by radial actuator 603.Be used for mobile radial actuator 603 so that luminous point is retained on the orbit centre and therefore radial error is reduced to zero necessary power (amplitude and symbol) by controller module radially controller 604 define.Radially controller 604 as input, and calculates output signal with radial error signal, its input is reduced to zero.
Radially controller 604 is electronic filters, and it has different qualities in the different frequency scope.A typical case of sort controller and example commonly used are proportional-integral-differential (PID) controllers, and it has: be used for arranging low frequency controller output integral function, be used for arranging the proportional gain of intermediate frequency output and be used for arranging the differentiator of high frequency output.
Perhaps, also can feed back the average tracking error of all luminous points.Backfeed loop comprises the low-pass filter (LPF) 605 at top, so that only control moving of the interior luminous point of a certain bandwidth.Other backfeed loops (bottom) by the control rotating mirror remove this bandwidth tracking error part in addition.Because catoptron is little and light, so can realize very wide bandwidth.
Note that broad arrow represents signal set, the corresponding signal of each luminous point.Signal produces radial tracking error for all luminous points subsequently from this optical device.These radial tracking errors filter through Hi-pass filter (HPF) 606, so that only handle the higher component of frequency.Obviously, the cutoff frequency value of LPF 605 and HPF 606 is similar.For error signal, the jump signal from as shown in Figure 6 jump signal generator 607 is added in the signal mixer 608 through high-pass filtering.By one group of N controller 609, PID type controller for example, each controller is responsible for controlling a luminous point or catoptron, signal is presented to the catoptron 610 through activating, and catoptron 610 is with the tram of each beam deflection on the disc tracks.
In the above-described embodiments, not only can implement the present invention, but also realize the additional function of compensation high frequency tracking error by the luminous point on the transfer CD.By increasing LPF and HPF, high-frequency signal is separated and is used for modulating catoptron through activating.This helps record and reads high rotating speed CD.
The luminous point that shifts on the CD also can cause the luminous point in the photodetector plane to shift, and electric signal is responsible for producing in this photodetector plane, can produce data-signal (high frequency-HF-signal), focusing error and radial tracking error signal by these electric signal.This can disturb optical signalling.For example, may as typical beam landing (beam landing), cause the push pull radial signal bias.This can be avoided by come mobile photodetector according to spot displacement.
In above-mentioned arbitrary embodiment, can select open loop or closed-loop path to control and implement spot displacement.A difference between open loop control and the closed-loop path control is, in the open loop scheme, realize rotation by present predetermined electrical signals to actuator, and for jump was put upside down in the closed-loop path, the electric signal that enters actuator depended on the radial error signal that records from a certain non-static luminous point.
Fig. 7 be show according to one embodiment of the invention under open loop control with a plurality of along disk inner track schematic flow diagram of the method for read/write data and on CD to the luminous point of outside tracks positioned.In step S710, detect each luminous point in succession and whether all arrived the previous data area of read/write.Then, in step S720, if read/write internally track carry out to external orbital, that just moves to the luminous point that is detected and current outermost luminous point position adjacent; If read/write is carried out to inner tracks from external orbital, that just moves to the luminous point that is detected and current inner most luminous point position adjacent.Therefore, spot displacement is accomplished.The generally easier execution of method under the open loop control.In the control of closed-loop path, in transfer process, measure the position of traveling light spot, and moving according to measured each luminous point of signal controlling.
The result shows that for using twin-beam blu-ray disc system of the present invention (Ng=1 supposes that hopping time is infinitely short), data rate is brought up to 1.9 times, and uses classic method, and data rate will drop to below 1 times.In addition, the present invention may be used in nearly all optical memory system with many luminous points, for example CD, DVD and blu-ray drives.
The foregoing description is exemplary, and does not wish that they limit technical method of the present invention.Though describe the present invention in detail with reference to preferred embodiment; but be understood by those skilled in the art that; can under the situation of spirit that does not depart from the technology of the present invention method and category, revise or be equal to and replace technical method of the present invention, these modifications or be equal to the protection category that replacement also belongs to claims of the present invention.
Claims (12)
1. method with a plurality of luminous point read/write data on described CD of locating to external orbital along the inner tracks of a CD said method comprising the steps of:
Detect each luminous point in succession and all arrived an original data area of read/write,
If described read/write track is internally carried out to external orbital, described luminous point is moved to a position adjacent with current outermost luminous point; If described read/write is carried out to inner tracks from external orbital, described luminous point is moved to a position adjacent with current inner most luminous point.
2. the method for claim 1 further may further comprise the steps:
Mobile photodetector to be following moving of described luminous point,
Measure the position of described luminous point.
3. the method for claim 1 wherein remains the constant distance of at least one track radially between all described luminous points.
4. the method for claim 1, wherein said mobile step are that rotation one is used for the catoptron of deflection one single laser beam.
5. one kind with a plurality of inner tracks along CD system of read/write data to the luminous point of external orbital location and on described CD, and described system comprises:
One pick-up unit is used for detecting in succession each luminous point and has all arrived a previous data area of read/write, and produces a detection signal,
One actuating device that is triggered by described detection signal is used for moving described luminous point, if described read/write internally track carry out to external orbital, described luminous point is moved to a position adjacent with current outermost luminous point; If described read/write is carried out to inner tracks from external orbital, described luminous point is moved to a position adjacent with current inner most luminous point.
6. system as claimed in claim 5 comprises that further one is connected to the rotary reflection lens array of described actuating device, is used for the deflection laser light beam to produce described a plurality of luminous point.
7. system as claimed in claim 5 comprises that further one is connected to the Liquid Crystal Module of described actuating device, is used for the deflection laser light beam.
8. system as claimed in claim 5 wherein remains the constant distance of at least one track radially between all described luminous points.
9. system as claimed in claim 6, the turning axle of wherein said reflection mirror array is arranged in the plane through an optical axis of described laser beam in fact.
10. system as claimed in claim 6, wherein said reflection mirror array integrates with the lasing light emitter of the described laser beam of emission.
11. system as claimed in claim 6, wherein said laser beam is to form by dividing a single lasing light emitter with a grating or an acousto-optic modulator.
12. system as claimed in claim 6, the time that wherein is used for after rotation each catoptron in the described rotary reflection lens array being turned back to its initial position is depended on the swing circle of described CD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006800447447A CN101317223A (en) | 2005-11-29 | 2006-11-23 | System and method for reading/writing data on optical disk by a plurality of light spots |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101285930A CN1979647A (en) | 2005-11-29 | 2005-11-29 | System and method for reading/writing data on optical disc using multiple spots |
| CN200510128593.0 | 2005-11-29 | ||
| CNA2006800447447A CN101317223A (en) | 2005-11-29 | 2006-11-23 | System and method for reading/writing data on optical disk by a plurality of light spots |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101317223A true CN101317223A (en) | 2008-12-03 |
Family
ID=37779335
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005101285930A Pending CN1979647A (en) | 2005-11-29 | 2005-11-29 | System and method for reading/writing data on optical disc using multiple spots |
| CNA2006800447447A Pending CN101317223A (en) | 2005-11-29 | 2006-11-23 | System and method for reading/writing data on optical disk by a plurality of light spots |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005101285930A Pending CN1979647A (en) | 2005-11-29 | 2005-11-29 | System and method for reading/writing data on optical disc using multiple spots |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1958192A1 (en) |
| JP (1) | JP2009517793A (en) |
| KR (1) | KR20080078020A (en) |
| CN (2) | CN1979647A (en) |
| BR (1) | BRPI0619048A2 (en) |
| TW (1) | TW200741689A (en) |
| WO (1) | WO2007063458A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105408049A (en) * | 2013-05-24 | 2016-03-16 | 法国圣戈班玻璃厂 | Method for producing a substrate |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200802347A (en) * | 2006-06-23 | 2008-01-01 | Koninkl Philips Electronics Nv | A method and system for reading/writing an optical disc with a plurality of laser beams |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6061323A (en) * | 1996-07-30 | 2000-05-09 | Seagate Technology, Inc. | Data storage system having an improved surface micro-machined mirror |
| KR100224915B1 (en) * | 1996-10-29 | 1999-10-15 | 윤종용 | Track scanning method for optical pickup using multi-beam |
-
2005
- 2005-11-29 CN CNA2005101285930A patent/CN1979647A/en active Pending
-
2006
- 2006-04-20 TW TW095114170A patent/TW200741689A/en unknown
- 2006-11-23 KR KR1020087015658A patent/KR20080078020A/en not_active Application Discontinuation
- 2006-11-23 WO PCT/IB2006/054398 patent/WO2007063458A1/en active Application Filing
- 2006-11-23 EP EP06831905A patent/EP1958192A1/en not_active Withdrawn
- 2006-11-23 CN CNA2006800447447A patent/CN101317223A/en active Pending
- 2006-11-23 BR BRPI0619048A patent/BRPI0619048A2/en not_active IP Right Cessation
- 2006-11-23 JP JP2008541889A patent/JP2009517793A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105408049A (en) * | 2013-05-24 | 2016-03-16 | 法国圣戈班玻璃厂 | Method for producing a substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1979647A (en) | 2007-06-13 |
| EP1958192A1 (en) | 2008-08-20 |
| WO2007063458A1 (en) | 2007-06-07 |
| BRPI0619048A2 (en) | 2016-11-29 |
| KR20080078020A (en) | 2008-08-26 |
| TW200741689A (en) | 2007-11-01 |
| JP2009517793A (en) | 2009-04-30 |
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Open date: 20081203 |