CN101356504A - Apparatus and method for analysis of optical storage media - Google Patents

Abstract

Various apparatus and related methods are disclosed that are capable of detecting surface defects on an optical storage media. One example of an apparatus is configured to direct at least one light signal, which may be from one or more lasers, on an outer surface of an optical storage medium, such as a CD, DVD or the like, which includes encoded data. The light encounters both the optical storage media surface as well as any smudges, scratches, dents, or other defects thereon. Some or all of the light reflected from the defects and the surface are detected by one or more detectors, which may be a photodiode. The detector(s) produce an output signal commensurate with the detected reflected light, which output is processed to determine whether the encoded data may be accurately read from the optical storage media.

Description

The apparatus and method that are used for the analysis of optical storage media

The cross reference of related application

The exercise question that this non-provisional application requires on November 10th, 2005 to submit to is that the sequence number of " Apparatusand Method for Analysis of Optical Storage Media " is No.60/735, the rights and interests of 331 U.S. Provisional Application, this application is incorporated by reference herein.The application is No.60/865 with the exercise question of submitting on November 10th, 2006 (Dkt.no.188641/US) for the sequence number of " Method for Using Optical Storage Media Analysis " also, 197 U.S. Provisional Application is relevant, and this application also is incorporated by reference herein thus.

Technical field

Each side of the present invention relates to the apparatus and method on the surface that is used to analyze optical storage media.Each side of the present invention also relates to determines that given various optical storage media (" OSM ") that may types whether can be in the various apparatus and method of handling in may the light storage device (" OSD ") of types, and this light storage device can carry out data read or writes data on the OSM based on the detection of the various possibility defectives that meeting hindered or suppress to handle.The whole bag of tricks and device according to each side of the present invention can be incorporated among the existing OSD, can be incorporated into its fundamental purpose in the autonomous device of analyzing OSM, and can present in other embodiments.

Background

Information stores industry constantly increases the capacity and the performance of the device of canned data under the driving of the market demand.One of them demand is will be by the information of access (temporary information) after distribution of information (space communtication (spatialcommunication)) is also preserved to each position.A kind of popular application that is used for information stores is the storage of video information, for example film, TV programme and home videos.Also having another kind of popular application is the storage of music information.The another kind of application is storage and the distribution that software arrives the terminal user.Under the driving of this market demand and react this demand, market has been introduced various storage formats and has been come dealing with various requirements.

The method that a large amount of canned datas are arranged, for example RAM by printed matter (for example book and magazine), based semiconductor and FLASH storer, based on the MRAM of magnetic or magnetic bubble memory, based on the Winchester type disc driver of magnetic, use phase transformation or optical memory and holographic memory prefabricated or " burning " medium.Every type all has specific Pros and Cons, and As time goes on, the storage of particular type is tending towards arranging specific application.

CD (" CD ") is introduced into the seventies in 20th century as a type of OSM, and has become the spread path of storage and distribution music information rapidly owing to continued the specific advantages of state-of-the-art technology at that time (cassette tape and LD disc).Because continued the specific advantages of state-of-the-art technology at that time (floppy disk), the CD medium also is used stores and issues computer software.Medium and CD recorder/player technology, further developing of all types of readback devices, permission company and user record themselves CD, use available some different form storage from music and video to photo and image, to the various types of information of software and data.The capacity difference of CD but about every video disc 600MB of average out to.This is enough for a lot of application, but is not enough to store the film that does not compress significantly.

DVD (be called " Digital video disc " or " digital versatile disc " sometimes, though acronym really cutting spread to open (if any) inconsistent usually) be introduced into and become rapidly the nineties in 20th century as the OSM of another kind of type and be used to issue for example popular means of the pre-recorded videos information of film and extra titbit.The DVD form also allows to store the data with distributed software and other form.Dvd media and as the permission company that further develops of the DVD recorder/player technology of the OSD of another kind of type and DVD that the user records themselves store from music and video to photo and image, to the various types of information of software and data.The capacity of DVD is different, and some DVD have the approximately capacity of every DVD 4.7GB.This film titbit of enough storing complete length adds the information that other user is interested and useful.The employing of DVD technology in market is one of the market penetration the most fast in our epoch.

Appearing at now the new technology of storage on the optical storage media even more data.For example, two kinds of new forms of vying each other (also other form can occur) popularly are called blue light and HD-DVD.Every video disc of these forms all can be stored above 15Gbyte.This makes the film of HDTV form to store on an independent video disc and to issue.Use the information stores of principle of holography also under development.In the market of this competition, will introduce other improvement and form frequently undoubtedly.

In general sense, the physical arrangement of most of optical storage methods is similar with principle of operation.Fig. 1 is the part side cutaway view of OSM 10.For the purpose of shining but be not limited to irradiation, the difference in height (generally be called " plane " 12 and " pothole " 14) of binary data by recording layer is encoded and records on the video disc.Data are phase transformation or other method record of Available Material also.OSM comprises the substrate 16 of acrylic acid or other material.In based on phase transformation OSM, comprise the layer of suitable material in the substrate.In the OSM that uses difference in height, in substrate, pothole and plane are encoded.In substrate, use protective finish 18 such as polycarbonate.Coating is optically transparent for the wavelength that is used for reading from pothole and plane the laser instrument of coded data at least.Also can use aluminium coated 20 to the substrate on pothole 14 and the plane 12.Aluminium coated improves the reflection from the laser on pothole and plane.Label 22 can be positioned in the substrate 16.

Laser instrument is used for by variation scanning disk in the detection of reflected light and retaking of a year or grade data.Data storage is revolved in " magnetic track " of extension in micro-groove or around valve snail.OSD uses laser beam to scan these grooves, and wherein along the little reflection projection (plane) of groove alignment with do not reflect hole (pothole) laser signal is adjusted, this signal is represented 0 and 1 numerical information when suitably decoding.

DVD technology and CD technology specific energy mutually are written to littler " pothole " on the recordable media.Littler pothole means that the laser of driver must produce littler point.The DVD technology is by realizing this purpose with optical maser wavelength from the ruddiness that the infrared light of 780 nanometers (" nm ") used is reduced to about 625-650nm the standard CD driver.

Littler data pothole allows more pothole on every data track.The minimum pothole length of individual layer DVD-RAM is 0.4 micron, and CD is 0.834 micron by contrast.In addition, the DVD magnetic track draws closer together, and allows every more magnetic track of video disc.Therefore, track pitch (track pitch)--from the center of the part of helix information or " magnetic track " to the distance of the neighbouring part of magnetic track--is littler.On the DVD-R of 3.95GB, track pitch is 0.8 micron; The CD track pitch is 1.6 microns.On the DVD-R of 4.7GB, even 0.74 micron littler track pitch helps to improve memory capacity.

These narrow magnetic tracks require special laser instrument to read and write--and it can not read CD-ROM, CD-R, CD-RW or audio frequency CD.The DVD-ROM drive manufacturer has solved this problem by place two laser instruments in their driver: one is used for DVD, and another is used for CD.Focus on littler pothole for the ease of laser instrument, dvd media has used thinner plastic-substrates than CD.In addition, dvd media has thinner protective finish than CD medium, and laser must arrive pothole through this coating and write down or reading of data.It is that 0.6mm--is half of CD thickness that this seedbed of this minimizing causes disc thickness.Or even the DVD of single face has two layers of substrate, though there is one deck can not keep data.The double-sided disc that has two data surfaces must overturn and read data on each face.In other OSM, information can be stored as in the medium, dyestuff change in or along the phase transformation on the direction of magnetization of magnetic generator-optical storage media, and other forms.

In various OSM, data Layer is by optically transparent protection surface 18 protections basically.In CD and DVD, it typically is makrolon material.The infringement that significant problem is the OSM protective surface that current optical storage media user faces.This can scattering or change to a little reflected light or the characteristic of transmitted light, make data not be read again or to write or both neither energy.Depend on OSD, OSM Error Correction of Coding (" ECC ") can be handled the mistake of specific dimensions, damages and reads or write but cause OSD can not pass this greater than the mistake of this threshold values.In DVD player, this can be expressed as frame-skipping, card dish or even can not discern the existence of DVD.In CD Player, itself can show as ear-piercing and bored click sound, frame-skipping, card dish or even can not discern the existence of CD.The frequency of this infringement increases year by year, because the quick market penetration of OSM has extended to jejune relatively user (for example, children), they can appropriateness not treat fragile protection surface carefully.

There is identification and slows down the classic method that reads or write data to the problem on the OSM from OSM.This type of traditional material typically relates to mistake, the error correcting code circuitry of the data stream that inspection reads from OSM, and monitors and read the retry requirement.What need is the method for analyzing OSM protection surface.What is also needed is the method whether specified data can be successfully read as well as written to OSM.These and other demand by as below with set forth in detail of the present invention each use and each side solves.

Summary

One aspect of the present invention relates to the method that is used to analyze the optical storage media surface.This method comprises at least one light signal is guided to operation on the outside surface of optical storage media.This optical storage media comprises coded data.This method also comprises the several portions of detection from least one light signal of the outside surface reflection of this optical storage media.And this method also relates to determines whether coded data can accurately be read, and it is relevant from the several portions of at least one light signal of outside surface reflection with detection.

Another aspect of the present invention relates to the device that is used to analyze optical storage media, and this device or " validator " comprise the platform that is configured to support optical storage media, and its qualification has at least one face of data Layer.This device also comprises at least one luminophor of being positioned to shine at least one face with data Layer and is positioned to receive from the light of optical storage media reflection and provides and at least one photodetector of the reflected light output signal related that received.Finally, this device comprises at least one circuit component of output that is configured to receive from the output signal of this photodetector and the integrality of at least one face that indication has data Layer is provided.

These have carried out more detailed description below with a lot of others and embodiment the present invention.

The accompanying drawing summary

Before in detail explaining disclosed embodiment, should be understood that because the present invention can have other embodiment, thus the invention is not restricted to its for shown in the application of details of concrete device.And, each side of the present invention can various combination and equipment state to be limited to the invention uniqueness in their rights own.And term used herein is unrestricted purpose in order to describe purpose.Therefore, the embodiment shown in the present invention is not intended to be limited to, but consistent with the wideest scope that meets principle that comprises alternatives, modification and equivalent (defined in the scope of appended claims book) described herein and feature.Note the accompanying drawing not to scale (NTS), and be illustrated in essence that it is considered to show best the feature of rights and interests to a certain extent.

Fig. 1 is the representative cross sectional view of exemplary optical storage medium;

Fig. 2 is according to the optical storage media analyzer of each side of the present invention or the isometric view of " validator ";

Fig. 3 A is the isometric view of the optical storage media analyzer described in Fig. 2, and it has removed lid to show various electronic equipments and carrier, laser assembly and the detector module that is in primary importance is shown that this primary importance can be the reference position of scan operation;

Fig. 3 B is the isometric view of the optical storage media analyzer described in Fig. 3 A, and it has removed lid to show various electronic equipments and carrier, laser assembly and the detector module that is in the second place is shown that this second place can be the end position of scan operation;

The cut-open view that Fig. 4 is got for the line 4-4 along Fig. 2;

Fig. 5 is according to each side of the present invention, and a kind of process flow diagram of analytical approach of optical storage media is shown;

Fig. 6 illustrates the laser-bounce of defective on laser incident on the optical storage media, the optical storage media and collects view by the several portions of the laser of defect reflection by detecting device;

Fig. 7 is according to each side of the present invention, and the block scheme of the electronic equipment of the analyzer shown in Fig. 1 is shown;

Fig. 8 is according to each side of the present invention, illustrate from the laser of the indefectible surface reflection of optical storage media and on the photosphere detecting device view of the laser of incident;

Fig. 9 is according to each side of the present invention, illustrate from the laser of the indefectible surface reflection of optical storage media and on the photosphere detecting device of Fig. 8 the view of the laser of incident;

Figure 10 is according to each side of the present invention, illustrate from the laser of the indefectible surface reflection of optical storage media and on the photosphere detecting device in the hole that has covering the view of the laser of incident;

Figure 11 is according to each side of the present invention, and the view of the laser of incident on the laser of the indefectible surface reflection of optical storage media and the photosphere detecting device shown in Figure 10 is shown; And

Figure 12 is according to each side of the present invention, the isometric view of the validator component that combines with the DVD readback devices.

Embodiment describes

Embodiment according to each side of the present invention can relate to the method and apparatus that is used for analysis and detects the style characteristic on the next definite surface of optical storage media (" OSM ").Particularly, embodiment can detect the disappearance or the existence of the feature that is commonly referred to defective on the given OSM, such as, but be not limited to, cut, osculum (ding), dust, dirt, fingerprint, other organic or inorganic material, bending or folding line, slight crack or partly or entirely embed or rest on the surface other foreign object.In some instances, the existence of this type of surface imperfection can influence light storage device (" OSD ") from the OSM reading of data or data are write the ability of OSM.

Equally, can construct to determine existence, the size of defective or propagate whether make OSD can or cannot read or write data reliably according to the embodiment of each side of the present invention.Can also carry out this and analyze to determine, but not be whether whole OSD can read or writing information.And this analysis can be considered the particular type of OSD or OSM and determine and extract authentic data or add the possibility of authentic data to concrete OSD and/or OSM from concrete OSD and/or OSM.Embodiments of the invention also can be configured to determine and the defect recognition type makes the user suitably to respond.Can for example comprise by the OSM that embodiment described herein distinguishes, analyzes and/or checks, but be not limited to, the optical storage media of DVD, DVD-ROM, DVD-R, DVD/R-W, DiVX, DVD-Audio, CD, CD-ROM, CD-WORM, CD-R/W, SACD, blue light, HD-DVD, game disc, holography and other type, it can constantly develop in future.

Traditional being called " immediate data " method unlike the retaking of a year or grade quality that is used for weighing OSM; embodiment described herein not only rely on read for data that it is compared, check data stream mistake, use error correcting code circuitry or monitoring player read the retry requirement, and determine according to the protection surface that the embodiment of each side of the present invention can analyze OSM whether this surface will hinder or suppress data and be read or write.Yet these classic methods can be used for replenishing sufacing as herein described and enforcement.Except method by data readback being verified the data that write, classic method do not provide known definite OSM whether can successfully be write.

Surface analysis technique and structure according to each side of the present invention are not best to the defective that detection is arranged in the subsurface data Layer of protection, but because this defective is compared rareness with the lip-deep defective that exposes at OSM, so this compromise can acceptance.Data storage covers on pothole that reflects and unreflecting plane and by protective finish.The protection surface that exposes is subjected to cut, stain, indenture or other infringement.These defects diffract are from the laser of OSD player and the data Layer of below is thickened, and therefore make to read or write the data Layer difficulty that becomes.However; the several portions of the light of transmission will be through comprising the outer of protective finish and arrive data Layer on OSM, can construct independently or detect defective in the data Layer in conjunction with detecting defective in the skin according to the surface analysis embodiment of each side of the present invention.

Surface analysis can independently be adopted or adopt with traditional immediate data analytical technology combination.In combination, but surface analysis technique and immediate data analysis specified data reading capability and no matter the outer surface defective.Surface analysis technique described herein can provide the faster speed of comparing with traditional immediate data error-detecting method of actual read data with device.The surface characteristics that embodiment also can analyze OSM is determined the error correction action of defects property and recommendation.Various embodiment can be independently or are jointly used effect to obtain.

Fig. 2-4 shows an instantiation according to the optical certifier device 100 of each side of the present invention.This optical certifier comprises the body construction 102 of the lid 104 that support spring loads, and this lid 104 is positioned to cover OSM platform 106, and wherein OSM 108 is located by the user.This embodiment constructs the surface imperfection of the OSM that analyzes DVD or CD type.Therefore, this platform comprises the wheel hub 110 of the center pit that supports traditional DVD, CD etc.This wheel hub is attached on the motor 112 that rotates wheel hub (seeing Fig. 3 A, 3B).This platform, wheel hub and dependency structure can be described as OSM and support and moving assembly.The OSM motor is suitable for coming rotational support the wheel hub of OSM with the speed of needs, for example 600 rpms (rpm).This motor can be equipped with speed pickup, to pass on for example required speed of 600rpm that when reaches.Platform 106 also comprises window 114, and this window 114 is located such that the surface that can be presented at the OSM 108 that is positioned on the platform from the light of light source 16, and reflected light is caught by detecting device 118.

With reference to Fig. 3 A, 3B and 4, optical certifier 100 also comprises light generation and detection components and processing electronic equipment particularly.In the concrete structure of Fig. 2 A-4, light produces and detection components 120 comprises one or more laser instruments 122 or other light source 116, and laser instrument 122 or other light sources 116 are arranged to be guided through window 114, points to the surface that is supported on the OSM on the platform.Light produces and detection components comprises that also layout detects from one or more detecting devices 118 of the light of the surface reflection of OSM.

In the concrete layout of Fig. 2-4, laser instrument and detecting device all are supported on the carrier 124.This carrier is supported movably, makes it locate with respect to OSM movably.In this concrete structure, carrier be arranged relative positioning on wheel hub 110 OSM 108 and radially move.Carrier is supported on two guide rails 126,128.Be adjacent to a guide rail 126, gear 130 connects with motor 132.Gear 134 connects with carrier makes the mobile carrier of rotation of gear.

On a face of carrier 124, laser instrument 122 is connected on the carrier.Laser instrument is positioned to launch light and passes on the surface of window 114 to OSM.In this concrete application, in an opposed side of carrier, contiguous worm gearing 130 places, printed circuit board (PCB) 136 supports at least one detecting device.PCB is positioned at from the path of the light of OSM reflection detecting device 118.Layout as shown in Fig. 2-4 and following further discussion, the rotation of gear cause laser instrument and the reverberator surface scan across OSM.Especially in Fig. 3 B, the light generation and the detection components 120 usefulness virtual images illustrate and are in outer orientation, and the second place of close wheel hub is shown.This moves and allows laser radially inwardly to scan the OSM surface towards endoporus (wheel hub) from the outward flange of OSM.

In an alternative, laser instrument/detector module is installed on the bearing that pivot rotates and is configured to be used for along camber line scanning OSM.In another alternative, laser instrument and detecting device are installed on the separation assembly that moves simultaneously basically.In addition, fully focus on or surface that fully calibration or light source that both all are are used to replace laser radiation OSD.

The each side of handling electronic equipment is discussed in more detail below about Fig. 7.Be sent to display 138 from the output of handling electronic equipment, for example be positioned the LCD of validator front.

Fig. 5 illustrates that a kind of OSM of analysis surface determines whether defective exists and whether defective will influence the retaking of a year or grade of data or the process flow diagram of the concrete grammar that writes.Beginning, OSM is placed on the wheel hub of validator and starter motor to cause OSM rotation (operation 200).In a concrete device, validator 100 is included in the lid 104 that covers OSM and light source 116, detecting device 118 and other assembly in the test process to small part.Lid blocks light on every side to improve signal to noise ratio (S/N ratio) for detector module.It also protects user's eyes to avoid the laser infringement as the part of interlocking system.Alternatively, OSM supports and moving assembly can be supported on movably on the pallet, and this is withdraw in enclosed areas OSM support and moving assembly and this assembly is located with respect to laser assembly of pallet movably.In any structure, when lid is closed or during tray retracted, switch operationally connects with lid or pallet, transmits signals to the OSM motor controller, this controller control Spindle Motor 112 causes it that OSM is started with the speed of setting or changing and rotates.Alternatively, may comprise that also the manual activation switch causes motor actuated and with the operation of some speed.Validator comprises the power switch 140 that power is provided to device when opening.May comprise that also computer control or some other devices cause motor actuated.

Next, keep motor speed to determine when the suitable speed (operation 210) that reaches.In one embodiment, the Spindle Motor rotary acceleration is monitored and with its size that is used for determining the video disc in the test, it is in place to comprise whether video disc does not have.For example, motor will not quicken under having under the video disc situation in place than the situation that about 8cm game disc as the GameCubeTM video disc is arranged quickly, and this 8cm game disc is with to compare acceleration such as about 12cm video disc of DVD faster in test.This information can be used for customizing the type of the test of carrying out on video disc, comprise the threshold values that is used to damage detection, be used to damage the formula that cut determines or the amount of scanning area etc.

When reaching the speed that needs, activate a plurality of points (operation 220) that carrier motor 132 is come mobile light source and detector module 120 to make one or more light sources be radiated at a point on the OSM of rotation continuously or is positioned at a plurality of positions.When video disc rotated, mobile light source/detector carrier 124 made that the surface of optical storage media is shone successively, up to whole surface or its part sample by light source.In another embodiment, carrier motor 132 is synchronous with Spindle Motor 112, for example by using one all (the once-around sync) synchronously that is produced by the OSM motor, makes carrier motor advance with certain speed, it can be continuous or step by step, is determined by the Spindle Motor rotational speed.In the case, when Spindle Motor acceleration, deceleration or speed change, the required part that carrier motor can be activated and shine whole surface or the surface of OSM continuously.In one embodiment, for the possible test duration of minimum, motor is continued to quicken and decelerate to constantly then to stop to make the scanning of whole surface or required part to finish when Spindle Motor stops.In the method for Fig. 5, carrier moves up to it and has scanned whole OSM surface, and this point is detected near the radially end points of wheel hub by arriving.Under any circumstance, validator all is configured to be used for scanning of a surface and determine when scanning is finished (operation 230).

According to the existence of defective or do not exist, the reflection on surface is directed to or the diversion detecting device, and this detecting device can be photodiode in a concrete application.The surface of OSD can be scanned whole or in part.If necessary, it also can be scanned by one or many ground before the output result.After scanning was finished, motor cut out and the OSM of rotation is stopped (operation 240).

As will be below with respect to the more detailed discussion of Fig. 6 and 7, detecting device and handle electronic equipment and be configured to be used for detection of reflected light produces and output voltage, and output voltage and threshold voltage are compared (operating 250) in a concrete device.Threshold voltage is arranged to the relevant output voltage of specific rank with the surface imperfection that will influence correct OSM retaking of a year or grade.It is peculiar that this threshold voltage can be the OSM type, and the OSD type is peculiar and relevant with other factors.Surpass or be no more than this threshold values and cause suitable LCD to show, as be respectively " by " and " fault " or other (operating 260).

Referring now to Fig. 6 and other figure surface analysis technique is described in further detail.From the reflection of light 142 on smooth indefectible surperficial 144 (in irradiation area, not the having defective) of OSM 108 in source 116 along the path 146 that is called main axis (dotted line).In a concrete device, detector module is arranged such that along the light of this main axis and does not intersect with detecting device 118, so when light incides on the indefectible surface, do not arrive the signal of electronic equipment.When such as the defective 148 of cut from light source on the beam spot of main axis the time, light departs from main axis from the path 150 of surface scattering and reflection ray.In a device, arrange that one or more detecting devices make the reflected light from the scattering of defective to intersect with light activated detecting device usually, thereby produce by the signal that electronic circuitry involved detected, will further go through about Fig. 7 hereinafter.Might make light along such direction scattering for some defectives, make light do not intercepted and not captured by detecting device.In this case, can not detect this defective.Can utilize around this main axis and arrange more detecting device, or by ring or part ring that uses detecting device or single detector with enough sizes (having the area of intercepting and capturing) along the light of the main shaft that is capped, or use and to have photodiode or other method a lot of light activated pixels or charge-coupled image sensor, that on its a lot of photosensitive units or pixel, detect light, this possibility is reduced.

Example shown in Fig. 6 adopts single laser instrument 122 and relevant fluorescence detector 118, and its layout is used for directing a laser on the surface 144 of OSM 108 and collects reflected light or its several portions.Because defective according to their pattern can be on all directions scatter incident light, one or more by adding for first laser instrument with different incident directions or angle or both and the crossing laser instrument in OSM surface, perhaps with the output of one or more light sources separately and guiding output come to intersect with identical or different incident direction or angle or both with the OSM surface, can improve the possibility that detects defective.By the first photaesthesia detector being added the defects detection possibility that one or more light activated detectors can obtain to mention with identical or different reflection direction or angle or both.

In the concrete validator shown in Fig. 2-4, in the plane of vertical major line 146 directions, arranged two detecting devices (118A, 118B), but each other in the right angle.This type of device provides sufficient susceptibility for the specific purpose that detects with the directed defective of random direction (comprising radially pure or pure circumferential).

Fig. 7 shows the electric diagram for the validator that adopts two detecting devices, and this validator can or can not be arranged in the plane perpendicular to the main axis direction, but each other in the right angle.Remove a detecting device, this electric diagram is substantially similar to the validator that adopts a detecting device.

Referring again to Fig. 6, also may arrange detecting device 152 (shown in the dotted line) and calibration system along main axis, make to produce known output signal from indefectible defect-free surface reflection and the application of impact on detecting device.In the time of in the defective such as cut is in by the zone of irradiation area sampling, light departs from from main axis 146 from the path of surface scattering and folded light beam.This will cause the minimizing and the corresponding minimizing from detector output signal of the light quantity of irradiating and detecting device 152.Can be used to determine the existence of defective after the deviation of these known outputs.May arrange to have a last detecting device 152 one or more validators from axis detector 118 and its combination.

This detecting device can be taked various forms.The electric charge coupling light sensing device (" CCD ") that has enough sizes of a plurality of photosensitive units or pixel can have photoimpact on specific photosensitive unit, this photosensitive unit is placed the light of intercepting and capturing along main axis.When light during by the defect scattering in the surface, intercept and capture the minimizing that will experience exposure along the photosensitive unit of the light of main axis, and will be because of experiencing the irradiation increase from the light of defect scattering along the photosensitive unit of scattering path.This type of detecting device combines on the axle and from two kinds of advantages of axle.

Similarly, can use one or more be positioned over that axle is gone up and one or morely be positioned over a plurality of photosensitive units that depart from main axis, a plurality of photodiode comes replaced C CD.If being scattering into, some or all scattered lights make it not intersect with the pixel on main axis not, then will not produce signal from axis detector, but photodiode on the axle or diode will experience the minimizing of their light amount of irradiation, and correspondingly produce lower output signal.

In certain embodiments, may be that part very little during whole irradiation changes changes owing to defective makes the minimizing of the light of detector module on the irradiation axis, and the change of the last detector signal of axle also can be very little.In this case, still can demonstrate from axis detector can detected reliably acceptably signal.Therefore, from axis detector, detecting device on the axle, or its some combinations can be adopted in according to the embodiment of each side of the present invention effectively.

As diagrammatically illustrating among Fig. 8-9, also may use integrated photosphere 156 to collect from the scattered light 150 of laser instrument 116.In the device shown in Figure 8, this bag is drawn together hole 158, and it is contiguous but not along main axis 148 that this hole is arranged in main axis 148.Correspondingly, as shown in Figure 9, when light runs into defective on the OSM 108, just be introduced into this hole from the several portions of the light 150 of defect scattering.In inside, this ball reflected light also provides the output suitable with detected light.Similarly the optical means of collecting light can adopt in the embodiment according to each side of the present invention.For example, can use independent detecting device, but with reflecting surface or surface, or refractive surface or surface, or both work in coordination with and collect the light that is compromised scattering and it is introduced this independent detecting device.As shown in Figure 10-11, integrated photosphere can comprise the cover 160 on the main axis, makes not enter ball but entering ball from the light 150 of defect scattering detects along the light of main axis.In this example, is all opening on all faces of cover in the hole, and therefore around main axis.In first sphere example, locate from axle in whole hole, thus scatter to the light of main axis opposite side can be not detected.

Referring again to Fig. 7 and other figure, OSM motor 112 and laser instrument/detector module motor 132 is controlled by controller (162,164) separately now.Rotation motor is to lid switch, tray switch or manual switch, and also can require checking lid or pallet whether in latched position, this checking also can provide from signal and the interlocking signal (166,168) from switch, and this switch separates with lid or tray switch or is same switch.Laser instrument 122 irradiations can be triggered by OSM motor controller, laser instrument/detector module motor controller or other mechanism.Laser instrument or other light source impact the surface of OSM 168 and light and one or more detecting device of reflection from it intersects.(118A 118B) produces the output voltage (170) relevant with quantity of incident light to detecting device, if there is not defective to cause light to incide on the detecting device, this output voltage (170) may be exactly a noise rank voltage.Output voltage is sent on one or more amplifiers and/or the filtrator 172.Amplifier or a plurality of amplifier connect one or more relevant comparator circuits (174A-174D).Each comparator circuit has reference voltage (176A-176D).In addition, each comparator circuit connects one or more light emitting diodes (" LEDs ") or other output unit.

In the concrete device of Fig. 7, come the output of self-detector to be connected on four comparator circuits.Each comparator circuit has threshold voltage separately.In addition, each comparator circuit normally drives green LED, and drives red LED (LED exports 178A-178D) when reaching threshold values.Alternatively, the LCD that the output of each comparer is arranged to drive separately shows, as " by ", " but some infringements are arranged can play ", " fault rank 1 ", " fault rank 2 " and " fault rank 3 ".

When laser 122 incided on the defective, light was was mainly intercepted and captured by the light activated detecting device 118A, the 118B that produce output voltage 170 usually.This detector voltage signal is exaggerated device 172 accumulations and amplifies, and uses comparator circuit 174 to compare with reference voltage 176.In a specific embodiment, if surpass reference voltage, then red LED is lighted and green LED closes to provide the signal that this reference voltage has been exceeded to the user.Having been found that between the possibility that detector signal amplitude and defective will stop DVD accurately to play has roughly and corresponding fully, and this defective makes the light scattering that produces corresponding signal.

Use one or more comparator circuit of identical or different reference voltage to be connected on green and the red LED, these circuit can be used to provide the roughly degree of infringement.If the red LED of corresponding higher reference voltage is triggered, have been found that then to have more a large amount of defectives that the error correction that itself display defect more may hinder the correct retaking of a year or grade of OSM and defective is difficulty more.

To the reference voltage of comparator circuit can be fix or can adjust by the user.In one embodiment, the independent comparator circuit that has by the adjustable reference voltage of the come-at-able similar device control of pot or user can produce the identical roughly degree of infringement by repeatedly test OSM with different reference voltages.In another embodiment, reference voltage is provided by digital analog converter and passes through from the computing machine of connection or the software setting of miscellaneous equipment renewal.In another embodiment, digital reference rank and the infringement of the calculating in microcontroller or dsp controller rank are compared.

In another embodiment, the infringement rank that draws is based on from the output of comparer and be presented on the lcd screen 138.In yet another embodiment, the infringement rank is used the interface as USB2.0 to output to the equipment of separation and is presented on the equipment of this separation, and this equipment is PC or point of sales terminal for example.

In a concrete validator embodiment, the No.38-1000-ND type laser instrument of DigiKey and the No.S1787-08 type photodiode detector of Hammamatsu have been used.The first comparer 174A has the reference voltage of 1V, and the second comparer 174B has the reference voltage of 2V, and the 3rd comparer 174C has the reference voltage of 3V, and the 4th comparer 174D has the reference voltage of 4V.Based on the relation between present obtainable some DVD player in the market as a reference, as Philips DVP642, SamsungDVD-L70, Hitachi DVP755U or Sony DVP-NS575P/S, the photodiode output of the amplification between having determined 1 and 2 volt, it will cause lighting red LED 178A by first comparator circuit, but will can not light second to the 4th LED 178B-178D, the analyzed DVD of this expression can play on these players, and however some defectives still exist.2V or bigger voltage depends on voltage and lights the 2nd 178B to the four 178D red LED, and this indicated object DVD has to be enough to suppress or to hinder this DVD in these defectives of playing on reference to player.The output voltage that increases is usually corresponding to defective greatly.Concrete threshold voltage or for the voltage of any specific embodiment can be depending on that various factors (if the words that have) comprises the type of laser instrument of employing and power, the type and the amplification range of the output voltage of the detecting device that adopted, the comparator device that adopted.In addition, threshold values in any concrete device according to the type of the type of OSM, protective finish, type, customer problem and other factor that expection is used can be optimised.

In other embodiments, come the amplifying signal of self-detector that about measured value of the total amount of the infringement that exists in the video disc also can combinedly be provided.In another embodiment, comparator circuit 174A also can supervise side so that can measure the defects count that surpasses given threshold values or a plurality of threshold values by optical counter.In another embodiment, output signal can be by the peak sampling hold circuit analysis, and this circuit is exported detected peak signal and restarted up to it.This peak signal can be used the analog-digital converter conversion and be output as voltage, and this voltage can be used to drive analog scaling dish or pointer-type indicator, or other method.

In another embodiment, can carry out digitized sampling, analysis and output in the multiple mode that it will be apparent to those skilled in the art that from the output of detector means or a part wherein.In a concrete validator embodiment, the right angle is placed and be in to two detecting devices from axle.In a specific embodiment, detecting device is Osram ^TMBPW34S, or Fairchild ^TMThe QSB34CGR detecting device.Amplifying signal is directed to digital signal processing (" DSP ") chip, and as the 32-bit point of fixity DSP TMS320F2808 of Texas Instrument, it is with the analog input sampling rate operation of 20kHz.Respectively signal is supplied with two analog inputs on the DSP, and " infringement rank " is calculated as follows:

Infringement rank={ A* (V1)+B* (V2) }/M

Wherein V1 and V2 come the digitized voltage of self-detector, and A, B and M are the adjustable parameter of foundation from the required weighting of the voltage of each detecting device.In another embodiment, the infringement level calculation is as follows:

Infringement rank=square root { A* (V1) ^2+B* (V2) ^2}/M

In either case, the infringement rank all shows the user.Weighted value can by with light scattering to the relative importance of the defective of each detecting device or based on the calibration of detector sensitivity, or both or other are former thereby definite.For example, each detecting device needn't produce with another and be used for the identical output signal of identical given irradiation.By the digitized voltage of weight detection device correspondingly in the infringement level calculation, use this effect for each and can be reduced to acceptable rank.

In addition, for various OSM, the orientation of defective can be relevant with the possibility that data will not be read.For example, in typical DVD player, defective circumferentially extends around video disc, thereby causes a long section continuously or the not readable data district that replaces, and compares with periodically making the unclear radially cut of a short segment data, and this more may cause the mistake that can not correct.In this case, for circumferentially or for the roughly axial defective, need this infringement rank to compare higher with radially similar defective radially or roughly.Show for convenience, but this infringement scoring normalizing and rounding up or truncation.

In one embodiment, the highest infringement rank that records is exported to the user or is conveyed to external unit by LCD 138, as computing machine or point of sales terminal.In another embodiment, can export the quantity that the infringement rank surpasses the incident of specific threshold values or a plurality of threshold values.In another embodiment, signal can be combined on whole signal or its part, and end value is as the measurement of total lesion.The infringement rank relevant with the position on the video disc can be to show infringement or the not form record and the demonstration of the synoptic diagram of the OSM in the zone of infringement.The infringement rank can be relevant with displayable eligible for repair amount with the amount of the required repairing of threshold values that the infringement rank is reduced to qualification.Also might continue output infringement rank is used for analyzing or showing.In yet another embodiment, signal can't help that DSP analyzes but storage and be transferred to another equipment and analyze, as computing machine that is used to analyze or video disc polishing equipment.

Under the situation of using a plurality of detecting devices, the infringement rank can be calculated as:

Infringement rank=square root { A* (V1) ^2+B* (V2) ^2+C* (V3) ^2+D* (V4) ^2+......}/M

The infringement rank=A* (V1)+B*V2+C* (V3)+D* (V4)+... }/M

Having on the axle detecting device and two in another embodiment of axis detector, can extract from signal from detecting device on the axle from axis detector.When light by infringement during scattering, the voltage of detecting device reduction and from the voltage increase of axis detector axle on.By mathematics ground in conjunction with these two changes--on the axle detector voltage reduction and from the increase of axis detector voltage, the signal to noise ratio (S/N ratio) of analytical electron equipment can increase.

Being used for calculating other other formula of infringement level from the digitized sampling of one or more detecting devices can use at the embodiment according to each side of the present invention.Detector signal can be arranged to change with the reflectivity of video disc on the axle.Have more reflexive surface and will cause the higher average voltage that produces by detecting device on the axle.The signal of this variation, may be with the disc size information of determining as top discussion, the video disc that can be used for determining measuring which kind of type (for example, Blu-ray disc, HD-DVD, DVD-ROM, game disc), and the type of the test on this video disc, carried out of customization, be included in the parameter used in the infringement scoring, be used to damage detect or by/threshold values that fault is determined, be used to calculate the formula of infringement scoring or the amount of scanning area etc.In the video disc that some designs are recorded with the cause user, the data of record change the reflectivity of lower surface.This reflexive change can be used to distinguish the zone that has data and do not have data.Therefore defective in the no datat zone is harmless to retaking of a year or grade owing to be defective in the no datat zone.On the other hand, multidata is harmful to for writing more to video disc to be arranged in the defective in the current zone that does not have data.For example, some game disc are as some Sony Playstation ^TM2 video discs have black surface rather than data are stored on shinny aluminium surface.Because dark surface will absorb more light than shiny surface, thereby the light quantity of reflection reduces.Correspondingly, the amount of the light of the defect scattering on the black game disc also reduces than the light of the similar defect scattering from standard DVD.Need to change other threshold values of infringement level this change is described.When measuring the video disc of dark coating, compare the signal that the shinny DVD by standard produces from the signal of detecting device on the axle and will reduce.The minimizing of sort signal can be used for identifying the type of video disc in the player.Measuring process, infringement level calculation, infringement level thresholds can all be used this information customization.

Embodiment can be provided on autonomous device or " optical certifier ", and it can analyze the OSM surface apace.This type of autonomous device may be suitable for hiring out DVD or other OSM or allow the user in addition or the company of other third party's access, come to determine that data access correctly will be play or allow to their DVD stock when being used to use their DVD stock.Optical certifier can additionally be attached to the computerize stock of company or consumer's history that point of sales system writes down OSM infringement history or infringement OSM.In addition, the OSD that receives feedback and determine them from the consumer when company reads or writes fashionable when responsive or strong especially passing defective, can threshold value be set to each particular user.As discussed above, this separate equipment will be in conjunction with the motor that makes video disc rotation, radius scanned laser or the method for a plurality of laser instruments and the circuit of measuring when video disc rotates.

Method as herein described and structure also can be incorporated among the existing OSD, as DVD player/register or CD Player/register, before beginning playback or write-in program, video disc scanned to pre-determine video disc and whether all can be read or write always, or do not have some defectives can influence data access or storage.This may be favourable for the company that for example makes DVD player.

An example of integrated player/certifier has been shown among Figure 10.This integrated equipment can comprise some or all features of autonomous device, or more advantageously, use some feature that in the OSM readback devices, has existed, for example, but be not limited to, OSM motor, OSM support, the various features of laser slide assembly, laser instrument, optical device (as lens), detecting device and electronic equipment.An one exemplary embodiment that is used for as the OSD of DVD player, the laser instrument and the detector module that separate in existing as shown in Figure 10 laser slide assembly, have been added.

More particularly, detecting device 118A and 118B (with relevant PCB 136) on alternative validator 180 embodiment comprise laser instrument 122 and are installed in traditional DVD player laser assembly 182.Laser assembly is installed on opposed guide rail 184 and 186.Tradition DVD read write laser 188 is supported on about medium position of laser assembly, and laser assembly all has laser instrument 122 and detecting device 118 at each end.Only some is illustrated assembly, and for ease of reference, axially align with traditional DVD player motor and wheel hub in hole 190.Correspondingly, the DVD that is positioned in being placed in device of guide rail radially moves laser assembly.Therefore motor 192 operationally connects to come mobile laser assembly 182 with gear 194, and laser instrument 122 and detecting device 118A and 188b move around along guide rail.

The conventional laser 188 that also may use is dual-use functions of certifier laser and read/write laser instrument.In this type of device, change laser instrument direction so that from some light scattering of defect reflection to detecting device 118, perhaps rearrange detecting device with shown in the location of laser instrument 188 detect light from defect reflection.Other possibility laser instrument or detector means also may offer the hybrid user of read/write laser instrument.

The comparator circuit of describing on existing electronic equipment, adding as Fig. 7.In this embodiment, OSM is rotated by the DVD player motor, DVD laser slide 182 activates movably across video disc, encourage the laser instrument 122 that separates and come the output of the detector module 118 of self-separation to monitor, to provide OSM to OSD whether can be by the signal that accurately reads or write by comparator circuit.Can be for this reason performance rather than the validator situation and customize threshold value independently of concrete OSD, threshold values is usually but needn't be arranged to adapt to the feature of various OSD herein.The threshold values that is used for successfully retaking of a year or grade and writes can be identical or different.

Existence can be repaired the method and/or the equipment of some types of damage on OSM.Be used to repair the different restorative procedure of the common use of equipment of impaired video disc, comprise according to the characteristic of infringement and carry out the different time that restorative procedure spends.Dissimilar methods often is encoded at user option fixed routine.In some cases, dissimilar methods can have variable parameter, as polish or time of at user option polishing operation at every turn.The needs selection to having minimum other program of playability level, does not exceed necessary material and do not remove, to be made the number of times maximum of the reparation that can carry out before Removing All on specific video disc at protective material with defect repair.In using the industry based on OSM of repair system, determine which method or parameter are that what to be fit to is the problem that constantly occurs for specific defective video disc.Typically, make decision by visual inspection.Some shortcomings in this method are reparations that different people may differently be judged to be needed, and they judge the reparation that needs in possible errors ground, cause too repairing or not exclusively repairing, and repeat to take place the expenditure that trained employees is made described differentiation.In one embodiment, the characteristic of using OCD to quantize to damage also can be constructed then and be measured video disc and show suitable method or program by display packing (reading or display screen as LCD), or even more advantageously, can directly be communicated with and suitable program is set reaches certain and repair rank with prosthetic appliance.After the reparation, it is successful can reusing that OCD confirms to repair or remove.

In another embodiment, repair system grasps the non-classified video disc of a pile automatically, and the OCD module is measured every video disc and determined suitable repair procedure, repairs module then and carries out preset sequence, and then OSM is passed to output.In one embodiment, OCD determines which video disc does not need to repair and these video discs are directly passed to output.In another embodiment, the quality of reparation can turn back to by the video disc that will repair among the OCD to confirm that having reached minimum rank playability checks.In this way, can be effectively and accurately repair a large amount of video discs and get involved without the operator.This also helps the OSM industry of unattended based on the retail kiosk.

This method can be integrated into the system in the method that is combined with video disc cleaning or repairs, and so that a mechanism to be provided, this mechanism need can determine whether cleaning or repair, cleaning or repair OSM then, and determine cleaning then or whether enough repair.

According to various application as herein described, other alternative embodiments can each side according to the present invention be constructed.For example, source light can reflect from removable reflecting surface or other optical device that comprises rotation, its zone that allows point of irradiation when OSM rotate continuously at whole surface or the surperficial required part up-sampling of OSM.In another example, in the equipment of integrated player/certifier, existing player dsp chip, microcontroller or analog-digital converter are guided in the output of self-detector 118 in the future into or other conventional player electronics is measured and/or calculated, and it indicates this video disc can or cannot play in concrete OSD.

In another example, use the OSD laser instrument to produce light, and use one or more hard-wired detecting devices to detect from the light of surface damage scattering.Alternatively, one or more fixing laser instruments or other light source are introduced on the video disc and with respect to video disc and scan the OSD detecting device.In any embodiment, whether be removable installation according to the orientation of the orientation of light source (or a plurality of light source), detecting device (or a plurality of detecting device) and light source, detecting device or both, OSM can maybe cannot be rotated.In various embodiments, in order to strengthen the detection of scattered light, reflecting surface or a plurality of reflecting surface, or refraction equipment or a plurality of refraction equipment can be used to scattered light is directed on (a plurality of) detecting device.

OSM also can not move through the light source/detector assembly rotatably linearly.The light source/detector assembly is mounted to and allows it to move perpendicular to OSM direction of motion, makes can scan whole surface or its some need part.In another alternative, source light can be from comprising the removable reflecting surface reflection of rotation, as mirror or other optical devices, it allows the point of irradiation zone partly to be sampled in the whole surface of OSM or the needs on surface continuously when it moves through linearly.Detector module can be installed movably and make it intercept and capture the reflected light from OSM.Alternatively, can collect and focus on the removable or fixing in this case detector module by reflection or refraction optical element from the reflected light of OSM.

In another embodiment, can be from the edge of OSM from the shot shape of light source and to extend to another edge, or the shape of the linear light of several portions that should distance, make needs part illuminated and sampling when it moves through linearly on whole surface or surface of OSM.At least extend from the edge-to-edge of OSM at this line, or cover at least under the situation that the needs of OSM partly extend, light source can be fixed.Under the situation of the part of the distance of edge-to-edge, radiation source can move, and makes the needs on OSM surface partly be sampled in the illuminated line covering.The length of line can also change the part with the needs on scanning OSM surface when the OSM linearity moves through.In order to catch reflected light, detector element self is also removable, or the irradiation of reflection can be by movably or fixing reflection or refracting element, or detector module is guided in its combination into.Detector element also can be capable form, and as delegation's photodiode or CCD device, it is basically with respect to allowed detector module to intercept and capture the amount of the light that needs by light-struck zone.

In another embodiment, the irradiation area on OSM surface can be a movably point, with allow its detector module be fix but its shape and directed when making that it intercepts and captures the reflected light that needs, it needs the part up-sampling the OSM surface.

Each side of the present invention can be used for retaking of a year or grade or recording mechanism and transmits and/or receive light (can be visible light) from the storage medium such as OSM to the storage medium such as OSM, to obtain data from storage medium or with any situation of data storage to the storage medium.Light is transmitted data or reflection way reads by detecting.Medium contains the data by the optically transparent surface protection of possibility, and this surface can be damaged temporarily or for good and all, revise, and makes infringement wait transmission or the reflection way that is independent of following data and changes light.

Although various representative embodiment of the present invention are discussed with specifics to a certain degree above, those skilled in the art can carry out a large amount of changes to disclosure embodiment under the situation of the spirit or scope that do not break away from the invention theme of the present invention of stating in instructions and claims.All directional references (for example, upper and lower, upwards, downward, left and right, left, to the right, top, the end, top, below, vertical, level, clockwise and counterclockwise) only be used for the explanatory purpose of auxiliary reader understanding's embodiments of the invention, and do not produce restriction, especially to position of the present invention, orientation or use, unless specifically statement in claims.Connect benchmark (for example, attached, connection, connection etc.) broadly explain and can be included in element connects and element between the intermediate member that relatively moves.So, connect that benchmark needn't infer that two parts are connected directly and each other in fixing relation.

In some instances, parts are with reference to having specific characteristic and/or being connected to " face " of another part and describing.Yet, person of skill in the art will appreciate that to the invention is not restricted to connect the parts that the some place of other parts stops at once exceeding their.So term " face " should be broadly, to comprise region adjacent, back, front or to explain near the mode of concrete element, connection, parts, member or other terminal point in addition.Its content that is intended that all foregoing descriptions or accompanying drawing comprise in illustrating should be illustrative rather than restriction.The change of details or structure can be carried out under situation about not breaking away from as the spirit of the present invention that limits in the appended claims book.

Claims (32)

1. method that is used to analyze the surface of optical storage media comprises:

At least one light signal is directed on the outside surface of optical storage media, described optical storage media comprises coded data;

Detection is from the several portions of at least one light signal of the described outside surface reflection of described optical storage media; And

With detect from the several portions of at least one light signal of described outside surface reflection judge relatively described coded data whether can with read exactly.

2. method according to claim 1 is characterized in that, described method also comprises and is provided at relatively moving between described optical storage media and described at least one light signal.

3. method according to claim 2 is characterized in that, the operation that relatively moves that is provided between described optical storage media and described at least one light signal comprises the described optical storage media of rotation.

4. method according to claim 2 is characterized in that, the operation that relatively moves that is provided between described optical storage media and described at least one light signal comprises the source of moving described at least one light signal with respect to described optical storage media.

5. method according to claim 2 is characterized in that, is provided at the operation that relatively moves between described optical storage media and described at least one light signal and comprises with respect to described at least one light signal and move described optical storage media.

6. method according to claim 1 is characterized in that, at least one light signal is directed to operation on the outside surface of optical storage media and comprises at least one light signal is directed on the coating of described outside surface of described optical storage media.

7. method according to claim 1 is characterized in that, described definite operation comprises with the detection of described at least one reflected light signal judges the possibility that accurately reads in the described data of encoding on the described optical storage media relatively.

8. method according to claim 7 is characterized in that described detecting operation also comprises provides output signal, and described output signal is relevant with the test section of described at least one light signal.

9. method according to claim 8 is characterized in that, described definite operation comprises compares described output signal with reference signal.

10. method according to claim 9, it is characterized in that, described method also comprises compares described output signal with first reference voltage, second reference voltage, the 3rd reference voltage and the 4th reference voltage, wherein each reference voltage is associated with the defective of described optical storage media, described defective with accurately read in described optical storage media on the possibility of coded data be associated.

11. method according to claim 1 is characterized in that, described at least one photodetector comprises first photodetector and second photodetector, and described definite operation comprises according to formula calculating infringement rank:

Infringement rank=square root { A* (V1) ^2+B* (V2) ^2}/M

Wherein V1=is from the digitized voltage of first photodetector, and V2=is from the digitized voltage of second photodetector, and A, B and M are the adjustable parameters that depends on the required weighting of each detecting device.

12. method according to claim 1 is characterized in that, described at least one light signal comprises laser signal.

13. a device that is used to analyze optical storage media comprises:

Be configured to support the platform of described optical storage media, described light storage medium limits at least one face with data Layer;

Be positioned to shine described at least one luminophor with at least one face of data Layer;

At least one photodetector, it is positioned to receive the light from described optical storage media reflection, and provides and the relevant output signal of the described reflected light that receives; And

At least one circuit component, it is configured to receive the described output signal from described photodetector, and the output of the globality of described at least one face with data Layer of indication is provided.

14. device according to claim 13, it is characterized in that, described at least one luminophor is positioned to along described at least one face with data Layer of main axis irradiation, and described at least one photodetector is along principal reflection axis location, and described principal reflection axis is incident on the path that described flawless lip-deep light is taked for the light that reflects from the flawless surface substantially of described optical storage media and along described main axis.

15. device according to claim 14 is characterized in that, described device also comprises not along at least one of described principal reflection axis location from the axle photodetector.

16. device according to claim 13 is characterized in that, described at least one photodetector is a charge-coupled image sensor.

17. device according to claim 13 is characterized in that, described at least one photodetector is a photodiode.

18. device according to claim 13, it is characterized in that, described at least one circuit component comprises at least one comparer, described comparer is configured to the described output signal from described at least one photodetector is compared with reference voltage, and the comparer output of the globality of indicating described at least one face with data Layer is provided.

19. device according to claim 13 is characterized in that, described at least one circuit component comprises digital signal processor.

20. device according to claim 13, it is characterized in that, described at least one luminophor is positioned to have along the main axis irradiation at least one face of data Layer, and described at least one photodetector comprises from first photodetector of principal reflection axis from the axle location, described principal reflection axis is incident on the path that described flawless lip-deep light is taked for the light that reflects from the flawless surface basically of described optical storage media and along described main axis, and second photodetector meets at right angles from the axle location and with described first photodetector.

21. device according to claim 13 is characterized in that, described at least one circuit component comprises digital signal processor, and its configuration is used for calculating the infringement rank according to formula:

Infringement rank=square root { A* (V1) ^2+B* (V2) ^2}/M

Wherein V1=is from the digitized voltage of described first photodetector, and V2=is from the digitized voltage of described second photodetector, and A, B and M are the adjustable parameters that depends on the required weighting of each detecting device.

22. device according to claim 13 is characterized in that, described platform comprises motor, and described motor operationally connects with the wheel hub that is configured to support described optical storage media, and described motor structure becomes to rotate described wheel hub and supported optical storage media.

23. device according to claim 13 is characterized in that, described device also comprises the carrier of installing movably, and described carrier supports described at least one luminophor and described at least one detecting device.

24. device according to claim 23 is characterized in that, described carrier comprises gear, and comprises the turbine apparatus that operationally connects with described gear.

25. device according to claim 13 is characterized in that, described at least one luminophor is a laser instrument.

26. device according to claim 13 is characterized in that, described at least one circuit component is configured to receive from the signal of described at least one photodetector and the output of the globality of the coating at least one face that indication has data Layer is provided.

27. device according to claim 13 is characterized in that, described at least one luminophor is arranged to move relative to described at least one photodetector, to scan the several portions of described optical storage media.

28. device according to claim 13 is characterized in that, described at least one photodetector is arranged to move relative to described at least one luminophor, to scan the several portions of described optical storage media.

29. device according to claim 13 is characterized in that, described platform structure becomes to support described optical storage media to be provided with in described relatively at least one luminophor and described at least one photodetector at least one and relatively moves.

30. method according to claim 1 is characterized in that, described method also comprises calculates other operation of infringement level.

31. device according to claim 13 is characterized in that, described at least one circuit component comprises that configuration calculates other processor of infringement level.

32. a device that is used for analyzing optical storage media comprises:

Support the mechanism of optical storage media;

Light signal is directed to the mechanism on the outside surface of described optical storage media;

Be used for detecting from the several portions of the light of described optical storage media reflection and the mechanism of at least one output signal is provided; And

Determine the mechanism of globality of the described outside surface of described optical storage media with visiting described output signal.

Images