CN103000195B - A kind of eight digital-code laser Card read/write methods - Google Patents
A kind of eight digital-code laser Card read/write methods Download PDFInfo
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- CN103000195B CN103000195B CN201210513373.XA CN201210513373A CN103000195B CN 103000195 B CN103000195 B CN 103000195B CN 201210513373 A CN201210513373 A CN 201210513373A CN 103000195 B CN103000195 B CN 103000195B
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Abstract
A kind of eight digital-code laser Card read/write methods, the method has completed information write CD or optical disc information reading mainly through generating laser, optical splitter, eight digital-code laser modulating devices, semi reflective prism, catoptron, collimation lens, 1/4 wavelength sheet, object lens, tracking servo device, focus servo, cylindrical lens, eight digital photoelectric conversion equipments.The present invention can change into (0,1,2 the most traditional for optical disc information process (0,1) two digital-code laser Card read/write mode, 3,4,5,6,7) eight digital-code laser Card read/write modes, are convenient to use in scale-of-eight computing machine, also improve the capacity of CD and the speed of information processing.
Description
Technical field
The invention belongs to areas of information technology, particularly a kind of eight digital-code laser Card read/write methods, be suitable for optical disc information process, scale-of-eight computing machine and Related product.
Background technology
Since CD invention, due to the positive effort of people, the performance index such as capacity, processing speed of CD there occurs significant change, but based on the message structure (0 that optical disc information process is the most basic, 1) scale-of-two does not change always, be not easy to use in scale-of-eight computing machine, also have impact on the capacity of CD and the speed of information processing.
Summary of the invention
Object of the present invention, there is provided a kind of eight digital-code laser Card read/write methods, the most traditional for optical disc information process (0,1) two digital-code laser Card read/write modes change into (0,1,2,3,4,5,6,7) eight digital-code laser Card read/write modes, be convenient to use in scale-of-eight computing machine, also improve the capacity of CD and the speed of information processing.
The technical scheme adopted is:
A kind of eight digital-code laser Card read/write methods, the method completes information write CD or optical disc information reading mainly through generating laser, optical splitter, eight digital-code laser modulating devices, semi reflective prism, catoptron, collimation lens, 1/4 wavelength sheet, object lens, tracking servo device, focus servo, cylindrical lens, eight digital photoelectric conversion equipments.
Eight digital-code laser modulating devices comprise write control end and eight digital input ends.
Eight digital photoelectric conversion equipments comprise reading control end and eight digital output ends.
Laser transmitter projects goes out the single beam laser of certain wavelength or frequency.
The laser beam that optical splitter is divided into three beams separate original single beam laser.
Eight digital-code laser modulating devices require 000,001,010,011,100,101,110,111 one of them number that 0,1,2,3,4,5,6,7 eight numbers translate to be loaded in the separate laser beam of three beams by eight digital input ends according to the write of write control end.
Semi reflective prism makes that optical splitter separates or through eight digital-code laser modulating device modulation three beams of laser bundle pass through, and the three beams of laser bundle containing optical discs storing information reflected from CD is reflected away through 90 °.
Catoptron reflects away three beams of laser bundle through 90 °.
Collimation lens is adjusted to collimated laser beam respectively the three beams of laser bundle dispersed.
1/4 wavelength sheet makes three beams of laser bundle produce the phase delay of 45 ° respectively, becomes circularly polarized light beam.
Three beams of laser bundle focuses on by object lens to be become ultrafine luminous point and gets on CD.
Tracking servo device keeps object lens correctly can aim at the track of record data all the time.
Focus servo keeps object lens accurately to be got on disc by light beam.
Cylindrical lens converges the luminous energy of the three beams of laser bundle containing optical disc information returned from CD.
According to the reading reading control end, eight digital photoelectric conversion equipments require that the three beams of laser bundle containing optical discs storing information by CD reflects reads three numbers on every, laser track, one of them is digital for composition 000,001,010,011,100,101,110,111, and outputs to eight digital output ends.
Read-write due to this method is that timesharing is carried out, the write control end of eight digital-code laser modulating devices and the reading control end of eight digital photoelectric conversion equipments can share, and eight digital input ends of eight digital-code laser modulating devices and eight digital output ends of eight digital photoelectric conversion equipments also can share.
Information write CD process is as follows:
Laser transmitter projects goes out the single beam laser of certain wavelength or frequency, the laser beam that optical splitter is divided into three beams separate single beam laser.
Eight digital-code laser modulating devices require that according to the write of write control end 000,001,010,011,100,101,110,111 one of them number that 0,1,2,3,4,5,6,7 eight numbers are translated are loaded in the laser beam after light splitting the laser beam formed after modulation by eight digital input ends.
Laser beam transparent semi reflective prism after modulation is irradiated to catoptron, reflexes to collimation lens through 90 °.
After collimation lens is adjusted to collimated laser beam respectively the laser beam after the modulation of three misconvergences of beams, be irradiated to 1/4 wavelength sheet.
1/4 wavelength sheet makes three beams of laser bundle produce the phase delay of 45 ° respectively, after becoming circularly polarized light beam, is irradiated to object lens.
Object lens carry out tracking and focusing under the acting in conjunction of tracking servo device and focus servo, the focusing of three beams of laser bundle is become ultrafine luminous point get in CD, and 000,001,010,011,100,101,110,111 8 one of them number of number contained in the laser beam after modulation is written in CD.
Optical disc information playback mode is as follows:
The process that the process of the laser beam arrival CD after light splitting and laser intelligence write CD is basically identical, and in the process, eight digital-code laser modulating devices are inoperative, and the laser beam after light splitting does not need modulation.
Object lens carry out tracking and focusing under the acting in conjunction of tracking servo device and focus servo, and being focused on by three beams of laser bundle becomes ultrafine luminous point and get in CD, and are reflected back object lens.
Different to the reflection case of laser according to the plano-concave of CD read and write layer, the information of three beams of laser Shu Hanyou 000,001,010,011,100,101,110,111 8 one of them number of number reflected.
Three beams of laser bundle containing information returns 1/4 wavelength sheet from object lens, and during by 1/4 wavelength sheet, polarization direction is rotated 45 ° again, becomes S linearly polarized photon.
S linearly polarized photon is irradiated to catoptron by collimation lens, reflexes to semi reflective prism through 90 °, then reflexes to catoptron through 90 °.Three beams of laser bundle is now the three beams of laser bundle containing optical disc information.
Cylindrical lens can gather the luminous energy of the three beams of laser bundle containing optical disc information, is irradiated to eight digital photoelectric conversion equipments.
Eight digital photoelectric conversion equipments read three numbers in the disc tracks every of the three beams of laser Shu Suohan containing optical disc information according to the reading control overflow reading control end, one of them is digital to form 000,001,010,011,100,101,110,111 8 number, and outputs to eight digital output ends.
Read-write due to this method is that timesharing is carried out, the write control end of eight digital-code laser modulating devices and the reading control end of eight digital photoelectric conversion equipments can share, and eight digital input ends of eight digital-code laser modulating devices and eight digital output ends of eight digital photoelectric conversion equipments can share.
Advantage and effect: by the enforcement of technical solution of the present invention, the most traditional for optical disc information process (0,1) two digital-code laser Card read/write mode can be changed into (0,1,2,3,4,5,6,7) eight digital-code laser Card read/write modes, are convenient to use in scale-of-eight computing machine, also improve the capacity of CD and the speed of information processing preferably.
Accompanying drawing explanation
Fig. 1 is eight digital-code laser card read/write apparatus structural representations of the present invention.
Attached number in the figure 23 is generating laser; 24 single beam lasers sent for generating laser; 25 is optical splitter; 26 is the identical three beams of laser bundle of the next-door neighbour of the formation of single beam laser after light splitting; 27 is eight digital-code laser modulating devices; 28 is the write control end of eight digital-code laser modulating devices; 29 is eight digital input ends of eight digital-code laser modulating devices; 8 separate for optical splitter or through eight digital-code laser modulating devices modulation three beams of laser bundle; 9 is semi reflective prism; 10 is catoptron; 11 is collimation lens; 12 is 1/4 wavelength sheet; 13 is object lens; 14 is tracking servo device; 15 is focus servo; 16 is CD; 17 is catoptron; 18 is the three beams of laser bundle containing reading orbit information; 19 is cylindrical lens; 20 is eight digital photoelectric conversion equipments; 21 is the reading control end of eight digital photoelectric conversion equipments; 22 is eight digital output ends of eight digital photoelectric conversion equipments.
Embodiment
A kind of eight digital-code laser Card read/write methods, be applicable to scale-of-eight computing machine, optical disc information process and Related product, it is characterized in that this disposal route, mainly complete information write CD or optical disc information reading by generating laser 23, optical splitter 25, eight digital-code laser modulating device 27, semi reflective prism 9, catoptron 10, collimation lens 11,1/4 wavelength sheet 12, object lens 13, tracking servo device 14, focus servo 15, catoptron 17, cylindrical lens 19, eight digital photoelectric conversion equipment 20.
Information write CD process is as follows:
The single beam laser 24 of certain wavelength or frequency launched by generating laser 23, the laser beam 26 that optical splitter 25 is divided into three beams separate single beam laser 24.
Eight digital-code laser modulating devices 27 require that according to the write of write control end 28 000,001,010,011,100,101,110,111 8 one of them number of number that 0,1,2,3,4,5,6,7 eight numbers are translated is loaded in the laser beam after light splitting 26 laser beam 8 formed after modulation by eight digital input ends 29.
Laser beam 8 after modulation is irradiated to catoptron 10 through semi reflective prism 9, reflexes to collimation lens 11 through 90 °.
Collimation lens 11 is irradiated to 1/4 wavelength sheet 12 after the laser beam 8 after the modulation of three misconvergences of beams is adjusted to collimated laser beam respectively.
1/4 wavelength sheet 12 makes three beams of laser bundle produce the phase delay of 45 ° respectively, after becoming circularly polarized light beam, is irradiated to object lens 13.
Object lens 13 carry out tracking and focusing under the acting in conjunction of tracking servo device 14 and focus servo 15, the focusing of three beams of laser bundle is become ultrafine luminous point get in CD 16, and 000,001,010,011,100,101,110,111 8 one of them number of number contained in the laser beam 8 after modulation is written in CD 16.
Optical disc information playback mode is as follows:
Laser beam 26 after light splitting arrives the process of CD and laser intelligence, and to write the process of CD basically identical, and in the process, eight digital-code laser modulating devices 27 are inoperative, and the laser beam 26 after light splitting does not need modulation.
Object lens 13 carry out tracking and focusing under the acting in conjunction of tracking servo device 14 and focus servo 15, and being focused on by three beams of laser bundle becomes ultrafine luminous point and get in CD 16, and are reflected back object lens 13.
Different to the reflection case of laser according to the plano-concave of CD read and write layer, the information of three beams of laser Shu Hanyou 000,001,010,011,100,101,110,111 8 one of them number of number reflected.
Three beams of laser bundle containing information returns 1/4 wavelength sheet 12 from object lens 13, and during by 1/4 wavelength sheet 12, polarization direction is rotated 45 ° again, becomes S linearly polarized photon.
S linearly polarized photon is irradiated to catoptron 10 by collimation lens 11, reflexes to semi reflective prism 9 through 90 °, then reflexes to catoptron 17 through 90 °.
Cylindrical lens 19 can gather the luminous energy of the three beams of laser bundle 18 containing optical disc information, is irradiated to eight digital photoelectric conversion equipments 20.
Eight digital photoelectric conversion equipments 20 read containing three numbers in the disc tracks every contained by the three beams of laser bundle 18 of optical disc information according to the reading control overflow reading control end 21, one of them is digital to form 000,001,010,011,100,101,110,111 8 number, and outputs to three eight digital output ends 22.
Read-write due to this method is that timesharing is carried out, the write control end 28 of eight digital-code laser modulating devices 27 and the reading control end 21 of eight digital photoelectric conversion equipments 20 can share, and eight digital input ends 29 of eight digital-code laser modulating devices 27 and eight digital output ends 22 of eight digital photoelectric conversion equipments 20 can share.
Claims (1)
1. a digital-code laser Card read/write method, be applicable to scale-of-eight computing machine, optical disc information process, mainly come by generating laser (23), optical splitter (25), eight digital-code laser modulating devices (27), semi reflective prism (9), catoptron (10), collimation lens (11), 1/4 wavelength sheet (12), object lens (13), tracking servo device (14), focus servo (15), catoptron (17), cylindrical lens (19), eight digital photoelectric conversion equipments (20), it is characterized in that:
Information write CD process is as follows:
The single beam laser (24) of certain wavelength or frequency launched by generating laser (23), the laser beam (26) that optical splitter (25) is divided into three beams separate single beam laser (24);
Eight digital-code laser modulating devices (27) require that according to the write of write control end (28) 000,001,010,011,100,101,110,111 8 one of them number of number that 0,1,2,3,4,5,6,7 eight numbers are translated is loaded in the laser beam after light splitting (26) laser beam (8) formed after modulation by eight digital input ends (29);
Laser beam (8) after modulation is irradiated to catoptron (10) through semi reflective prism (9), reflexes to collimation lens (11) through 90 °;
Collimation lens (11) is irradiated to 1/4 wavelength sheet (12) after the laser beam (8) after the modulation of three misconvergences of beams is adjusted collimated laser beam respectively;
1/4 wavelength sheet (12) makes three beams of laser bundle produce the phase delay of 45 ° respectively, after becoming circularly polarized light beam, is irradiated to object lens (13);
Object lens (13) carry out tracking and focusing under the acting in conjunction of tracking servo device (14) and focus servo (15), the focusing of three beams of laser bundle is become ultrafine luminous point get in CD (16), and 000,001,010,011,100,101,110,111 8 one of them number of number contained in the laser beam (8) after modulation is written in CD (16);
Optical disc information playback mode is as follows:
The process that the process of laser beam (26) the arrival CD after light splitting and laser intelligence write CD is basically identical, in the process, eight digital-code laser modulating devices (27) are inoperative, and the laser beam (26) after light splitting does not need modulation;
Object lens (13) carry out tracking and focusing under the acting in conjunction of tracking servo device (14) and focus servo (15), the focusing of three beams of laser bundle is become ultrafine luminous point get in CD (16), and be reflected back object lens (13);
Different to the reflection case of laser according to the plano-concave of CD read and write layer, the information of three beams of laser Shu Hanyou 000,001,010,011,100,101,110,111 8 one of them number of number reflected;
Three beams of laser bundle containing information returns 1/4 wavelength sheet (12) from object lens (13), and during by 1/4 wavelength sheet (12), polarization direction is rotated 45 ° again, becomes S linearly polarized photon;
S linearly polarized photon is irradiated to catoptron (10) by collimation lens (11), reflexes to semi reflective prism (9), then reflex to catoptron (17) through 90 ° through 90 °;
By cylindrical lens (19), the luminous energy of the three beams of laser bundle (18) containing optical disc information can be gathered, be irradiated to eight digital photoelectric conversion equipments (20);
Eight digital photoelectric conversion equipments (20) read containing three numbers in the disc tracks every contained by the three beams of laser bundle (18) of information according to the reading control overflow reading control end (21), one of them is digital for composition 000,001,010,011,100,101,110,111, and outputs to eight digital output ends (22);
Read-write due to this method is that timesharing is carried out, the write control end (28) of eight digital-code laser modulating devices (27) and the reading control end (21) of eight digital photoelectric conversion equipments (20) can share, and eight digital input ends (29) of eight digital-code laser modulating devices (27) and eight digital output ends (22) of eight digital photoelectric conversion equipments (20) can share.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210513373.XA CN103000195B (en) | 2012-12-05 | 2012-12-05 | A kind of eight digital-code laser Card read/write methods |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210513373.XA CN103000195B (en) | 2012-12-05 | 2012-12-05 | A kind of eight digital-code laser Card read/write methods |
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| CN103000195A CN103000195A (en) | 2013-03-27 |
| CN103000195B true CN103000195B (en) | 2015-09-30 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334563A (en) * | 2000-07-14 | 2002-02-06 | 财团法人工业技术研究院 | Access method for high-capacity optical disk record format |
| CN1492430A (en) * | 2002-04-15 | 2004-04-28 | ������������ʽ���� | Multiple value data recording and replaying device |
| CN101777352A (en) * | 2009-12-11 | 2010-07-14 | 沈阳理工大学 | Processing method of magnetic information of single magnetic track with eight numbers every place |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3047805B2 (en) * | 1996-01-29 | 2000-06-05 | 日本ビクター株式会社 | Packet data recording device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334563A (en) * | 2000-07-14 | 2002-02-06 | 财团法人工业技术研究院 | Access method for high-capacity optical disk record format |
| CN1492430A (en) * | 2002-04-15 | 2004-04-28 | ������������ʽ���� | Multiple value data recording and replaying device |
| CN101777352A (en) * | 2009-12-11 | 2010-07-14 | 沈阳理工大学 | Processing method of magnetic information of single magnetic track with eight numbers every place |
Non-Patent Citations (1)
| Title |
|---|
| 张东阳,李战.特二进制计算机的特数制研究.《计算机工程》.2010,第36卷(第13期),全文. * |
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Granted publication date: 20150930 Termination date: 20161205 |