CN101145353A - Optical disc identified surface printing method and apparatus - Google Patents
Optical disc identified surface printing method and apparatus Download PDFInfo
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- CN101145353A CN101145353A CNA2006101160304A CN200610116030A CN101145353A CN 101145353 A CN101145353 A CN 101145353A CN A2006101160304 A CNA2006101160304 A CN A2006101160304A CN 200610116030 A CN200610116030 A CN 200610116030A CN 101145353 A CN101145353 A CN 101145353A
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Abstract
The present invention relates to a method and a device for printing the mark surface of a compact disc. The method of the present invention comprises that: step one, driving a recording device to cause the light beam thereof to move and leap over areas with no patterns on the mark surface of the compact disc; step two, after the driving, according to the input data of the pattern printing areas, projecting the recording light beam of the recording device onto the mark surface for pattern printing. The present invention causes the light beam of the recording device to move and leap over areas with no patterns on the mark surface of the compact disc under the control of a step motor and a brake and then projects the recording light beam of the recording device according to the input data of the pattern printing areas onto the mark surface for pattern printing, thereby shortening the light-carving time.
Description
Technical field
The present invention relates to the method and apparatus of printed patterns on optical disc identified surface.
Background technology
Development along with recording disk and digital technology, the video and audio content that the user begins that oneself is liked records on the CD, watch by playback equipment then or listen to, because therefore video disc recording and play very convenient to usely is subjected to liking of increasing user.
Because the kind of CD is more and more, the just differentiation that need carry out disc types, and the video and audio content that needs will be recorded on the CD identifies out.For satisfying above-mentioned needs, disc manufacturer with tape label, is being write on the label on the identified surface and optical disk cartridge that literal sticks on CD, to play the effect of sign when producing CD.
But label exists following problem: if when CD separates with optical disk cartridge, just be difficult to discern the information that writes down in the CD; Label sticks on the identified surface, and alite paste can influence the smoothness of optical disc surface.
Therefore, optical disc production merchant has proposed writing light beam is directly projected the identified surface of CD, and engraving is gone up the scheme of pattern or literal on the whole, and this scheme is called as " light technology for fast carving on (LightScribe) ".
Support the identified surface of the CD of light technology for fast carving on, as shown in Figure 1a, after clamp district 1, also have control features (Feature) district 2.Control features (Feature) district 2 is shown in Fig. 1 b, and by speed control characteristics district 2a, control features outer ring 2b and reflective mirror district 2c constitute.The speed control characteristics district 2a marking 400 light width of cloth (spoke), rectangle or serrate template are arranged on the 2b of control features outer ring, and CD is divided into index sign, media ID district 1 (Media ID Field 1), sawtooth wave (Sawteeth), media ID district 2 (MediaID Field 2), sawtooth wave (Sawteeth), media ID district 3 (Media ID Field 3) shown in Fig. 1 c.
2 templates that form in the control features district, the demoder in the CD installed surface week by being positioned at recording unit detects, and the rotational speed when the CD shown in Fig. 1 a rotates can be grasped from the cycle that the light width of cloth detects rect.p. according to demoder.Therefore, be benchmark with the center 2d of searching mark, in record data, printing pattern etc. on the identified surface.
But, do not comprise the light positional information in the information in above-mentioned control features district 2, in order to print pattern or literal on the identified surface of CD, need discern the position (annotate: if following do not have specified otherwise " light position " just to abbreviate " position " as) of light exactly.The recognizing site user just can print pattern or literal exactly on the identified surface exactly, but owing to can not know current position, so recording unit can move the distance that is equivalent to a pattern track (circle) from interior week beginning laterally with writing light beam, and prints that part of pattern that should print on the circumference of going up after moving.
But, the part that does not substantially have printed patterns, as thoughtfully needing regional 3b between that of printed patterns 3a from printing zone interior among Fig. 2, this moving also with record speed multiplay, as 1/4 times (X/4),, move laterally along each track from interior week, finish the printing of pattern, operation will spend long time like this.
Summary of the invention
The present invention proposes for addressing the above problem just, the purpose of this invention is to provide and a kind ofly can skip the part that does not need printed patterns, the pattern that the user is needed etc. is printed onto on the identified surface, thereby shortens the printing process and the equipment of the optical disc identified surface of printing time.
To achieve these goals, printing process according to optical disc identified surface of the present invention, has following feature: by the control of step motor and detent (actuator), light beam is moved, make the light beam of recording means skip the zone that optical disc identified surface does not have printed patterns, after driving is finished, the writing light beam of recording means is projected label surface, carry out the pattern printing according to the data of pattern printing zone input.
In one embodiment of the present of invention,, light beam is moved, can guarantees the zone that light beam is skipped does not exactly need printed patterns by step motor.
In one embodiment of the present of invention, utilize full step-by-step system that step motor is driven, thereby light beam is moved.
In an alternative embodiment of the invention, utilize micro-stepping to advance mode step motor is driven, thereby light beam is moved.
In one embodiment of the present of invention, light beam is carried out roughly moving,, make light beam generation minute movement, thereby can guarantee the part that light beam is skipped does not exactly need printed patterns simultaneously by the control of detent by step motor.
Remove in the data that receive in one embodiment of the present of invention and be shown as the data that do not have pattern, light beam is skipped the data removed zone accordingly, projects on the identified surface, carries out the pattern printing.
After skipping the zone that does not need printed patterns according to order in one embodiment of the present of invention, writing light beam is projected on the identified surface, carry out the printing of pattern according to the data of input.
In addition, to achieve these goals, the printing equipment of a kind of optical disc identified surface of the present invention is characterized in that being made of following components: the optical drive portion that adds the optical drive signal according to tracer signal on light picker; On CD, transfer the motor driving part of light picker; Impact damper with main frame implementation communication; The optical beam transformation of the light picker that reflects on the optical disc identified surface is become the broadcast portion of two electrode current signals; And by motor driving part the handover of light picker and light beam is controlled, make the control of skipping patternless zone on the optical disc identified surface according to by the data or the information of impact damper reception
Effect of the present invention:
According to the printing process and the equipment of optical disc identified surface of the present invention,, skip this interval, thereby can shorten the time of light carving if run into during the light carving when not having printed patterns interval.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 a is an optical disc identified surface synoptic diagram of supporting the light technology for fast carving on;
Fig. 1 b is the synoptic diagram of a part of template in the control pattern area of Fig. 1 a;
Fig. 1 c is each regional synoptic diagram of optical disc identified surface of supporting the light technology for fast carving on;
Fig. 2 is the synoptic diagram according to the embodiment that passes through light technology for fast carving on printed patterns of present technology;
Fig. 3 is the structural representation of optical disk recording device of the support light technology for fast carving on of one embodiment of the present of invention;
Fig. 4 skips in the embodiments of the invention not have zone of the interior week of pattern, carries out the synoptic diagram of the method for light carving;
Fig. 5 is the two-phase drive signal waveform figure that drives step motor;
Fig. 6 is the two-phase drive signal waveform figure that drives step motor by step-by-step system;
Fig. 7 skips in an alternative embodiment of the invention not have zone of the interior week of pattern, carries out the synoptic diagram of the method for light carving;
Fig. 8 has two patterns to carry out the synoptic diagram of the method for light carving in the embodiments of the invention.
The symbol description of major part in the accompanying drawing:
10,11: ring light, light width of cloth optical sensor 12,13: cutting portion
21: light picker 22: servo portion
23: 24:RF portion of optical drive portion
25: motor 25a: the super luminescence diode motor
30: control part 31: impact damper
The 100:LS application program
Embodiment
Below with reference to accompanying drawings the printing process of optical disc identified surface of the present invention and the embodiment of equipment are elaborated.
Fig. 3 is the structural representation of optical disk recording device of the support light technology for fast carving on of one embodiment of the present of invention.The structural representation of Fig. 3 only demonstrates and the relevant part of light carving, and data recording incoherent with it and playback equipment omit does not do explanation.Below the equipment of other declaratives pair and switch of the present invention also omit and do not do explanation.
As shown in Figure 3, support the optical disk recording device of light technology for fast carving on to constitute: to detect light width of cloth optical sensor 11 from control features district beam reflected by several lower parts; Detection is from the ring optical sensor 10 of the template beam reflected that is positioned at control features district peripheral ring; The current signal that above-mentioned ring light, light width of cloth sensor 10,11 were detected and passed through gain is compared with reference voltage (Vref), is transformed into the cutting portion 12,13 of square wave input; Optical drive portion 23 according to the tracer signal output beam drive signal of importing; According to the light beam drive signal light beam is projected on the CD 40, with writing light beam with read the light picker (P/U) 21 that optical beam transformation becomes electric current RF signal; From electric current RF signal, import the RF portion 24 of scale-of-two (binarized) signal, output focusing error (FE) signal and tracking error (TE) signal; According to servo error signal or control signal the detent (actuator) of light picker 21 is controlled, the Control Shaft motor makes servo 22 of CD 40 rotations, and light picker 21 is moved on CD 40; Drive the motor driving part 25 of sledge motor (SM) 25a; Carry out the control part 30 of light carving operation according to square wave (binary signal); Carry out the impact damper 31 of data and command/response exchange with the main frame (not shown) and carry out in main frame, the form that pattern transfer is become can write down is so that carry out LS (Light Scribe) application program 100 etc. of light carving.In the optical disk recording device shown in Figure 3, super luminescence diode motor 25a is made of stepping (stepping) motor.Said motor drive division 25 is by making control signal, and for example according to the step motor drive signal of pulse enable, for example the loop formation of migration takes place the phase place of 2 phase drive signals.
Do not have zone of the interior week of pattern to skipping in the embodiments of the invention below, the method for carrying out the light carving is described in detail.
At first, LS application program 100 is transformed into the bit stream that is used for the light carving with the pattern of user's selection.As shown in Figure 4, with any datum line, as the perpendicular line 7b above the pattern region of needs printing is benchmark, generate bit stream, wherein each sweep trace (owing to being scan round, so corresponding one to one with the track of optical disc identified surface) is gone up figuratum part and is corresponded to 1 bit, does not have the part of pattern to correspond to 0 bit (or that zone), then bit stream is stored in memory device, on hard disk.Because the circumference of each track is different, so each all data volume is also different, if when light is carved at V
0Handle with the speed of per second K bytes under the writing speed, the computing formula of the bit number (fn (Nc)) of 100 pairs of each sweep traces of above-mentioned LS application program (track) on (Nc) is as follows:
[formula 1]
fn(Nc)＝8K·2п(Nc·Lw+r0)/V0(bits)
Wherein Lw is the width of track (sweep trace), and r0 is interior week of printing zone, i.e. the external diameter of reflective areas 2c.
Then, from storage facilities, read the LS data successively, offer control part 30 by buffer zone 31, at this moment, control part 30 reads in the data of buffering in the buffer zone 31, by according to formula 1 with the corresponding unit of track, with detect the expression figuratum bit value track 7c before data remove.The number of the corresponding track of data of at this moment writing down and removing.Like this in the impact damper 31 reading of data and remove with the operation of the irrelevant data of pattern and the tracer signal that data are produced project according to writing speed CD identified surface operation mutually specific rate obviously accelerate.
If in the buffer zone 31, when running into the data of track of bit value with display pattern, add gating pulse at motor driving part 25, the light beam S701 that moves light picker 21 interior week (r0) to periphery of the printing zone that begins from the initial operation of light carving according to the number of the track of memory.That is, if the printing number of memory is Nskip, then from (NskipLw+r0) corresponding point (rt) beginning mobile beam, to being described in detail as follows of this.
If above-mentioned super luminescence diode motor 25a rotation once, light picker 21 is transferred 3mm, if motor driving part 25 adds 2 phase drive signals as shown in Figure 5 and moves a phase place (1full step), super luminescence diode motor motor 25a rotation 1.8o (the super luminescence diode motor is meant the step motor that is made of the stator (stator) that 48 teeth are arranged in the rotor of 50 teeth (teeth) (rotor) and the internal diameter).The precision of transferring by step motor can reach 15.0 μ m{=3mm/ (3600/1.80) }.If DVD is the about 0.74 μ m of track degree of tilt (pitch) then, to print with this width same widths (that is, the width of track is about 0.74 μ m), then the precision that moves of the light beam by step motor is about as much as 20 tracks on identified surface.By the detent in the light picker 21 is controlled light beam can be realized than transferring moving of the higher track of precision with moved further.
Therefore, the super luminescence diode motor 25a that is made of step motor transfers light picker 21 exactly according to the resolution mobile degree on demand of self.Trickle the moving that moves through the light beam that detent causes in the resolution realize, so can move the corresponding distance of number (Nskip) (NskipLw) with the track that needs in current position exactly.
Width of each track (Lw) and super luminescence diode motor 25a 2 mutually the displacement of 1 Phase shift of drive signal (1full step) (in the previous examples for 0.015mm) in control part, set, if control part 30 calculates the distance (NskipLw) that light beam moves, then go out the transport number of 2 phase drive signals according to distance calculation, be full number of steps (Nps=NskipLw/DRES), if then after adding pulse by the number of steps that calculates on the motor driving part 25, motor driving part 25 as shown in Figure 5, move 2 phases (the A phase that adds on the corresponding super luminescence diode motor of each pulse 25a successively, the B phase) phase place of drive signal is transferred light picker 21 slightly.With the corresponding remaining track of (Nps=NskipLw/DRES) result of calculation, by servocontrol portion 22 control controllers, make the light beam of light picker 21 mobile slightly, light beam is moved to final goal point (rt).
Move back (promptly finish to impact point and move the driving back) to final goal point (rt), 30 pairs of rotational speeies of control part are regulated, reach the linear velocity of determining on the position that light beam moves to (v0), and monitor whether from ring optical sensor 10, detecting the index sign in the detected sample of signal.If detect the index sign, then from terminal point, be the track data that expression has the value of pattern with bit value, the tracer signal with this data decision is added in the optical drive portion 23 successively then, carries out the pattern printing.Printing operation stops when receiving light carving the finish command.
According to the method described above, at the printing zone 7d in the interior week that does not have data, do not carry out recording operation, a reading of data so just can be skipped this zone, shortens printing time.
On the other hand, if a Phase shift (1 full step) the pairing displacement (DRES) of 2 phase drive signals of the step motor that uses as super luminescence diode motor 25a is bigger than the amount of movement of the light beam that the movable range by detent causes, track can not carry out moving exactly, and at this moment super luminescence diode motor 25a uses micro-stepping to advance type of drive.Fig. 6 is the diagram that type of drive is advanced in micro-stepping, and micro-stepping is advanced in the type of drive Phase shift (1 fulls tep) and resolved into the individual micro-stepping of P (=8) and advance Phase shift.
Use micro-stepping to advance type of drive, once the displacement of full stepping is divided into P the minute movement distance of being advanced to cause by micro-stepping and moves, so the resolution of the handover distance of light picker 21 can be improved to (DRES/P).As Fig. 5, use under the situation of full stepper drive, if the rotation angle of step motor is 180, the resolution of then transferring distance is 0.15mm{=3mm/ (180/180) }, if advance to drive but whole stepping is divided into 8 micro-steppings, the resolution of then transferring distance can reach 18.7 μ m (=0.15mm/8), so just accurate more, when carrying out the light carving, can guarantee to skip exactly the pattern-free zone.
Light carving method to an alternative embodiment of the invention describes below.
At first, LS application program 100 is transformed into the bit stream that can carry out the light carving with the pattern of user's selection.As shown in Figure 7, from the interior week of printing zone, patternless regional 7d does not generate data.The track that with the width is Lw is the unit run-down, if run into figuratum zone, then generates bit stream, from track (promptly printing circle), figuratum part corresponds to 1 bit, and patternless part corresponds to 0 bit, and bit stream is stored in the memory device.Identical with the embodiment of front, LS application program 100 on each track (Nc), 1 allocation bit number (fn (Nc)) by formula.
On the other hand, LS application program 100 does not generate data from the interior week of printing zone, but the number (Nskip) of the track that memory is skipped generates Nskip line skip command according to this information, and is located at foregoing bit stream foremost.
As mentioned above, the LS of generation offers control part 30 by impact damper 31 successively with data.Like this, control part 30 will identify the line skip command that is positioned at through the data front of impact damper 31 bufferings, according to this order the detents in super luminescence diode motor 25a and the light picker 21 are controlled, the interior week (r0) of the printing zone that the light beam of light picker 21 is begun from the initial operation of light carving to the periphery mobile phase when in distance (NskipLw) S702 of the track number of Nskip.That is, light beam is moved to (NskipLw+r0) corresponding point (rt).
After adding mobile drive signal, 30 pairs of rotational speeies of control part are regulated, and reach the linear velocity of determining on the position that light beam moves to, and monitor whether detecting the index sign in the detected sample of signal from ring optical sensor 10.If detect the index sign, then from terminal point, the LS in the buffer zone 31 is added in the optical drive portion 23 successively with the tracer signal of data decision, printing pattern on each track one by one.Printing operation stops when receiving light carving the finish command.
According to the method described above, at the printing zone 7d in the interior week that does not have data, do not carry out recording operation, a reading of data so just can be skipped this zone, shortens printing time.
Be to have two patterns to carry out the synoptic diagram of the method for light carving in the embodiments of the invention among Fig. 8.As mentioned above, carry out light and carve first pattern from beginning to skip first zone 81 that does not have pattern interior week.If exist when not having the white space 82 of printed patterns between second pattern and first pattern, can skip corresponding regional 82 according to the method among Fig. 4 or Fig. 7.
The embodiment of the invention described above launches with the purpose of example, those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (10)
1. the printing process of an optical disc identified surface is characterized in that being made of following step:
The 1st step, activation record equipment moves the light beam of recording unit, makes light beam skip patternless zone on the optical disc identified surface;
The 2nd step after drive finishing, projects the writing light beam of recording unit according to the input data of pattern printing zone and to carry out the pattern printing on the identified surface.
2. the printing process of optical disc identified surface as claimed in claim 1 is characterized in that:
The zone of skipping in described the 1st step is for being shown as patternless data zone accordingly in the data that receive.
3. the printing process of optical disc identified surface as claimed in claim 1 is characterized in that:
Skip corresponding zone according to the pattern-free printing zone order of skipping that receives from the outside in described the 1st step.
4. the printing process of optical disc identified surface as claimed in claim 1 is characterized in that:
By step motor light beam is carried out roughly moving in described the 1st step,, make light beam generation minute movement, make the part that light beam is skipped does not exactly need printed patterns simultaneously by the control of detent.
5. the printing process of optical disc identified surface as claimed in claim 1 is characterized in that:
Light beam projects and carries out pattern when printing on the identified surface in described the 2nd step, and light beam moving target point is positioned on the identified surface on the track with week in the corresponding zone of pattern of needs printing and begins.
6. the printing equipment of an optical disc identified surface is characterized in that being made of following components:
On light picker, add the optical drive portion of optical drive signal according to tracer signal;
On CD, transfer the motor driving part of light picker;
Impact damper with main frame implementation communication;
The optical beam transformation of the light picker that reflects on the optical disc identified surface is become the broadcast portion of binary signal; And
By motor driving part the handover of light picker and light beam is controlled, made according to the data or the information that receive by impact damper and skip the controller in patternless zone on the optical disc identified surface.
7. the printing equipment of optical disc identified surface as claimed in claim 6 is characterized in that:
Described controller is controlled the handover and the mobile of light beam of light picker, removes in the data that described impact damper receives to be shown as patternless data, light beam is skipped removed data zone accordingly.
8. the printing equipment of optical disc identified surface as claimed in claim 6 is characterized in that:
Described controller is controlled the handover and the mobile of light beam of light picker, makes the order of light beam according to the main frame that receives in the described impact damper, skips patternless zone.
9. the printing equipment of optical disc identified surface as claimed in claim 6 is characterized in that:
Described controller finish make light beam skip the driving in patternless zone after, use light beam to project on the identified surface according to the data that area of the pattern input is arranged, carry out the printing of pattern.
10. the printing equipment of optical disc identified surface as claimed in claim 6 is characterized in that:
Described motor driving part is to drive a step motor to carry out transferring light picker on CD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101160304A CN101145353A (en) | 2006-09-14 | 2006-09-14 | Optical disc identified surface printing method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101160304A CN101145353A (en) | 2006-09-14 | 2006-09-14 | Optical disc identified surface printing method and apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101145353A true CN101145353A (en) | 2008-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101160304A Pending CN101145353A (en) | 2006-09-14 | 2006-09-14 | Optical disc identified surface printing method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101145353A (en) |
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2006
- 2006-09-14 CN CNA2006101160304A patent/CN101145353A/en active Pending
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Open date: 20080319 |