CN102982830A - Label surface signal correcting method - Google Patents
Label surface signal correcting method Download PDFInfo
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- CN102982830A CN102982830A CN2011102615505A CN201110261550A CN102982830A CN 102982830 A CN102982830 A CN 102982830A CN 2011102615505 A CN2011102615505 A CN 2011102615505A CN 201110261550 A CN201110261550 A CN 201110261550A CN 102982830 A CN102982830 A CN 102982830A
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- time
- total amount
- bearing calibration
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Abstract
Provided is a label surface signal correcting method. A label surface is rotated at a fixed rotating speed. In an outer ring of an operation feature zone, radial voltage is output to move a pick-up head. After preset reading time, information pattern marks are read, and a side beam added signal is formed. The side beam added signal is cut into a digital coding signal, and signal time of the digital coding signal is calculated. When the signal time is detected not to be in a preset signal range, the radial voltage is changed until the signal time is in the preset signal range, and the pick-up head is moved by means of the radial voltage to read the information pattern marks, so that the side beam added signal on the label surface is corrected.
Description
Technical field
The present invention relates to a kind of bearing calibration of disc label surface signal, particularly relate to the interior ring operation characteristic zone coding signal of CD player acquisition label surface, to the bearing calibration of the light total amount signal of ring operation characteristic zone in the label surface.
Background technology
General disc has data surface and label surface, the technology of light carving (Light Scribe) label, be the laser beam of read head (Pick-up Head) the emission higher-wattage that utilizes CD player, pictograph be plotted on the label surface of disc as identifying.
As shown in Figures 1 and 2, Fig. 1 is the synoptic diagram of prior art CD player read write tag face, and Fig. 2 is the synoptic diagram of read operation characteristic area signal.According to the specification of light technology for fast carving on, the inner ring of the label surface 11 of disc 10 is provided with operation characteristic zone (Control Feature Zone) 12 among Fig. 1, and operation characteristic zone 12 comprises interior ring 13 and outer shroud 14.CD player is fixed a photodetector (Optical Encoder) 15, reads 400 vertically hung scroll silk (Spoke) signals of interior ring 13 medium angular distribution, and the angle orientation of read head 16 when label surface 11 draws a design is provided.And the disc 10 information pattern marks of outer shroud 14 marks, such as: media ID (Media ID Field), sawtooth pattern (saw-tooth) and index marker (index mark) etc., by read head 16 radially sliding along disc 10, reading information pattern mark is drawn the label reference for CD player.
When reading the information pattern mark of disc 10, read head 16 need move to the outer shroud 14 of operation characteristic zone 12, during projecting laser light beam irradiates information pattern mark, reflected light is stronger, and when not shining the information pattern mark, reflected light a little less than, will receive the light total amount signal (Side beamadded signal is called for short SBAD) 17 that reflected light forms Fig. 2.The default standard value 18 of recycling cutter (Slicer), relatively light total amount signal 17 size and standard values 18, light total amount signal 17 greater than standard value 18 is judged to be high level (digital high) signal, then be judged to be low level (digital low) signal less than standard value 18, form numerical coding signal 19, to be decoded into the information of label surface 11.
Yet, the coating material of disc label surface, manufacturing process and quality are slightly made than data surface, inhomogeneous and the luminance factor data surface is poor, very easily read bad light total amount signal, to the cutter standard value 18 of setting, the light total amount signal of losing as shown in phantom in Figure 2, cause easily cutter to cut wrong light total amount signal, the coding signal of reading tag face operation characteristic zone mistake, and cause the dim design that label surface draws or distort, even can't draw label design.Therefore, existing label surface reads the method for light total amount signal, still has problem to need to be resolved hurrily.
Summary of the invention
Purpose of the present invention by the interior ring in operation characteristic zone, is adjusted the diametral voltage of read head in that the bearing calibration of a kind of label surface signal is provided, and proofreaies and correct light total amount signal, converts better numerical coding signal to, to guarantee the correctness of tag decoder surface information.
Another object of the present invention is providing the bearing calibration of a kind of label surface signal, reading the time of pre-tentering silk cycle, utilize the signal time of calculating the numerical coding signal, during default signal in, select the diametral voltage of better read head, to proofread and correct light total amount signal.
In order to reach the purpose of aforementioned invention, label surface signal of the present invention bearing calibration is rotated label surface with fixed rotating speed; At the outer shroud of the operation characteristic zone of label surface, export a diametral voltage and move read head; Read the time through predetermined, read the information pattern mark of outer shroud, form light total amount signal; Cutting light total amount signal forms the numerical coding signal, and calculates the signal time of numerical coding signal; In checking that the signal time is not during default signal, change diametral voltage, repeat abovementioned steps, until the signal time during default signal in, utilize diametral voltage to move read head reading information pattern mark, to proofread and correct the light total amount signal of label surface.The light total amount signal that to proofread and correct again cuts into the numerical coding signal, and the decoding digital coding signal becomes the information of label surface.
The predetermined time of reading of the present invention is the cycle of calculating the predetermined vertically hung scroll silk of process operation characteristic zone when reading.The predetermined vertically hung scroll silk cycle can be made as the cycle of rotating a circle 400 vertically hung scroll silks.And have certain relative position between information pattern mark and width of cloth silk, can calculate the standard signal time by the width of cloth strand number that reads the time process.Determine suitable upper limit signal time and lower limit signal time by standard signal time tolerance again, as between default signal region.
Description of drawings
Fig. 1 is the synoptic diagram of prior art CD player read write tag face.
Fig. 2 is the synoptic diagram of prior art read operation characteristic area signal.
Fig. 3 is the synoptic diagram of reading tag face operation characteristic zone of the present invention.
Fig. 4 is the synoptic diagram of read operation characteristic area signal of the present invention.
Fig. 5 is the synoptic diagram that the present invention reads upset operation characteristic area signal.
Fig. 6 is the process flow diagram of label surface signal of the present invention bearing calibration.
The reference numeral explanation
20 operation characteristic zone
21 interior rings
22 width of cloth silks
23 outer shrouds
24 information pattern marks
25 photodetectors
26 width of cloth silk signals
27 read heads
28 smooth total amount signals
29 cutting standard values
30 numerical coding signals
Embodiment
Relevant the present invention is for reaching above-mentioned purpose, and the technological means that adopts and effect thereof hereby lift preferred embodiment, and accompanying drawings are as follows.
Please also refer to Fig. 3 to Fig. 5, Fig. 3 is the synoptic diagram of reading tag face operation characteristic zone of the present invention, and Fig. 4 is the synoptic diagram of read operation characteristic area signal of the present invention, and Fig. 5 is the synoptic diagram that the present invention reads upset operation characteristic area signal.Among Fig. 3, the operation characteristic zone 20 of label surface comprises 400 vertically hung scroll silks 22 of interior ring 21 and the label surface information pattern mark 24 of outer shroud 23.Label surface is rotated along person's arrow R, and CD player is fixed a photodetector 25, reads the width of cloth silk 22 of interior ring 21, to form the width of cloth silk signal 26 among Fig. 4.CD player is established a read head 27 in addition along the radially sliding of label surface, and reads the label surface information pattern mark 24 of outer shroud 23, to form the light total amount signal 28 among Fig. 4.
When the present invention proofreaies and correct the signal of label surface, utilize diametral voltage V1 with the outer shroud 23 of read head 27 migration operation characteristic zone 20.Under label surface fixed rotating speed Krpm, through the predetermined time of reading M, the light total amount signal 28 of reading information pattern mark 24.To fixed rotating speed Krpm, the cycle T of each bar in the 400 vertically hung scroll silks=60/ (N*400), by read time M the predetermined vertically hung scroll silk 22 of process multiply by cycle T, just can calculate the time of the reading M in predetermined width of cloth silk cycle.And read the light total amount signal 28 of institute's reading information pattern mark 24 among the time M, then by the cutting standard value 29 of setting, cutting forms the numerical coding signal 30 of high-low level.By time t1, t2, t3, t4, t5, t6, the t7 addition of each high-low level signal, just can calculate the signal time S of numerical coding signal 30.
According to the specification of light technology for fast carving on, label surface information pattern mark 24 has certain relative position with width of cloth silk 22, therefore can calculate due standard signal time SA by width of cloth silk 22 numbers that read time M process, as calibration reference.And then in standard signal time SA tolerance, determine suitable upper limit signal time Y and the lower limit signal time X of signal time S, as between default signal region.If signal time S between between upper limit signal time Y and lower limit signal time X, can confirm then that light total amount signal normal conversion becomes suitable numerical coding signal, to guarantee the correctness of tag decoder surface information.Otherwise when being higher than upper limit signal time Y, too much noise appears in expression, and when being lower than lower limit signal time X, expression part signal is lost, and does not read light total amount signal 28.
As shown in Figure 5, dotted line 28 ' is for reading bad light total amount signal 28, cutter can't cut to light total amount signal 28, do not form the numerical coding signal 30 of high-low level, often cause numerical coding signal 30 to lose, make signal time S need reject again time t5, cause signal time S to exceed between signal region, therefore the undesired numerical coding signal that converts to of light total amount signal can be confirmed, the information of label surface can't be correctly decoded.
For the aforementioned situation that reads bad light total amount signal, the present invention is based on the inhomogeneous coating of label surface, the light total amount signal power that outer shroud 23 each position occur is indefinite.It is not good lower to the position of outer shroud 23 to move read head 27 at judgement diametral voltage V1, utilize the predetermined fixed amount of diametral voltage plus-minus or on-fixed amount mode, change up and down diametral voltage, diametral voltage V2 for example, mobile read head 27 is to the different position of outer shroud 23, at the time of the reading M in pre-tentering silk cycle, the light total amount signal 28 of reading information pattern mark 24, the light total amount signal 28 of proofreading and correct, cutting forms the numerical coding signal 30 of high-low level again.Calculate signal time S, in judging that signal time S is between signal region, otherwise change successively next diametral voltage, until better diametral voltage Vn calculate signal time S between signal region in, confirm that light total amount signal normal conversion becomes the numerical coding signal, can be correctly decoded till the information of label surface.Then move read head 27 reading information pattern marks 24 with better diametral voltage Vn, to proofread and correct the light total amount signal of label surface.
As shown in Figure 6, be the flow process of label surface signal of the present invention bearing calibration.The present invention selects the diametral voltage of better read head, the step-by-step procedures of the light total amount signal of correction label surface is as follows: at step S1, when beginning to proofread and correct the signal of label surface, rotate label surface with fixed rotating speed, step S2 at first at the outer shroud of the operation characteristic zone of label surface, exports a diametral voltage and moves read head.Through being scheduled to reading the time of vertically hung scroll silk cycle, read the information pattern mark of outer shroud at step S3, form light total amount signal, wherein the predetermined vertically hung scroll silk cycle can be made as the 400 vertically hung scroll silk cycles of rotating a circle.Set the cutting standard value at step S4 again, cutting light total amount signal forms the numerical coding signal of high-low level.Calculate the signal time of numerical coding signal at step S5.In step S6 checks that the signal time is during default signal? if the signal time not during default signal in, then to step S7 change diametral voltage, be back to diametral voltage that step S2 output changes read head is moved to the diverse location of operation characteristic zone outer shroud, repeat abovementioned steps.If the signal time during default signal in, the diametral voltage that then filters out to step S8 utilization moves the information pattern mark that read head reads whole outer shroud, proofread and correct the light total amount signal of label surface, cut into the numerical coding signal, last decoding digital coding signal becomes the information of label surface.
Therefore, label surface signal of the present invention bearing calibration, can adjust the diametral voltage of read head by the interior ring in operation characteristic zone, reading the time of pre-tentering silk cycle, utilize the signal time of calculating the numerical coding signal, in during default signal, select the diametral voltage of better read head, proofread and correct light total amount signal, convert better numerical coding signal to, reach the purpose that is correctly decoded label surface information.
The above person, only in order to convenient explanation preferred embodiment of the present invention, scope of the present invention is not limited to described preferred embodiment, and all any changes of doing according to the present invention under the premise of without departing from the spirit of the present invention, all belong to the scope of claim of the present invention.
Claims (8)
1. label surface signal bearing calibration, its step comprises:
(1) rotates label surface with fixed rotating speed;
(2) at the outer shroud of the operation characteristic zone of label surface, export a diametral voltage and move read head;
(3) read the time through predetermined, read the information pattern mark of this outer shroud, form light total amount signal;
(4) cut this light total amount signal and form the numerical coding signal, and the signal time of calculating this numerical coding signal; And
(5) check that this signal time is during default signal in? if the signal time not during default signal in, then change this diametral voltage, be back to step (2), if the signal time during default signal in, utilize this diametral voltage to move read head reading information pattern mark, to proofread and correct the light total amount signal of label surface.
2. label surface signal as claimed in claim 1 bearing calibration should be the cycle of calculating the predetermined vertically hung scroll silk of this operation characteristic zone of process when reading the predetermined time of reading wherein.
3. label surface signal as claimed in claim 2 bearing calibration wherein should be made as the cycle of rotating a circle 400 vertically hung scroll silks in the predetermined vertically hung scroll silk cycle.
4. label surface signal as claimed in claim 2 bearing calibration, wherein this information pattern mark and this width of cloth silk have certain relative position, figure out the standard signal time by the width of cloth strand that reads the time process.
5. label surface signal as claimed in claim 4 bearing calibration wherein should determine suitable upper limit signal time and lower limit signal time by standard signal time tolerance between default signal region.
6. label surface signal as claimed in claim 1 bearing calibration, wherein this light total amount signal is formed the numerical coding signal of high-low level by the cutting standard value cutting of setting, by the time addition of each high-low level signal, calculate the signal time of this numerical coding signal.
7. label surface signal as claimed in claim 1 bearing calibration, wherein this change diametral voltage is to utilize in the predetermined fixed amount of this diametral voltage plus-minus or on-fixed amount.
8. label surface signal as claimed in claim 1 bearing calibration, the light total amount signal that wherein should proofread and correct cuts into the numerical coding signal, and this numerical coding signal of decoding again becomes the information of label surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102615505A CN102982830A (en) | 2011-09-06 | 2011-09-06 | Label surface signal correcting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102615505A CN102982830A (en) | 2011-09-06 | 2011-09-06 | Label surface signal correcting method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050147019A1 (en) * | 2004-01-06 | 2005-07-07 | Creel Kenneth R. | Media control features for a compact disc |
| CN101038777A (en) * | 2006-03-16 | 2007-09-19 | 明基电通股份有限公司 | Radial position location for non-data surface of CD disc |
| CN101076854A (en) * | 2004-12-11 | 2007-11-21 | 惠普开发有限公司 | Disc and method for printing disc |
| US20090022018A1 (en) * | 2007-07-19 | 2009-01-22 | Shih-Wei Huang | Focusing control method for label side of lightscribe discs |
| CN100527231C (en) * | 2005-04-26 | 2009-08-12 | 日立-Lg数据存储韩国公司 | Method for reading media information from optical recording media |
| TW201108217A (en) * | 2009-08-31 | 2011-03-01 | Quanta Storage Inc | Method for calibrating the offset of signal on lightscribe disc |
-
2011
- 2011-09-06 CN CN2011102615505A patent/CN102982830A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050147019A1 (en) * | 2004-01-06 | 2005-07-07 | Creel Kenneth R. | Media control features for a compact disc |
| CN101076854A (en) * | 2004-12-11 | 2007-11-21 | 惠普开发有限公司 | Disc and method for printing disc |
| CN100527231C (en) * | 2005-04-26 | 2009-08-12 | 日立-Lg数据存储韩国公司 | Method for reading media information from optical recording media |
| CN101038777A (en) * | 2006-03-16 | 2007-09-19 | 明基电通股份有限公司 | Radial position location for non-data surface of CD disc |
| US20090022018A1 (en) * | 2007-07-19 | 2009-01-22 | Shih-Wei Huang | Focusing control method for label side of lightscribe discs |
| TW201108217A (en) * | 2009-08-31 | 2011-03-01 | Quanta Storage Inc | Method for calibrating the offset of signal on lightscribe disc |
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Application publication date: 20130320 |