CN101000772A - Optical recording apparatus, optical recording method and optical storage medium - Google Patents
Optical recording apparatus, optical recording method and optical storage medium Download PDFInfo
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- CN101000772A CN101000772A CNA2007100022405A CN200710002240A CN101000772A CN 101000772 A CN101000772 A CN 101000772A CN A2007100022405 A CNA2007100022405 A CN A2007100022405A CN 200710002240 A CN200710002240 A CN 200710002240A CN 101000772 A CN101000772 A CN 101000772A
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Abstract
The present invention provides an optical recording device, an optical recording method and an optical recording medium, in the phase-change optical recording medium with a plurality of unit recording layers the unit recording layer at the inner side can be recorded with a lower power. The optical recording device reads the identifying information from the optical recording media (D) with the reappearing part. A recording impulse string generating part (39) respectively generate a first and a second recording impulse string with a read first identifying information which represents the first recording condition to the first unit recording layer and a read second identifying information that represents the second recording condition to the second unit recording layer. The recording part (400) irradiates the light corresponding to the first recording impulse string to the first unit recording layer and irradiates the light corresponding to the second recording impulse string to the second unit recording layer for recording.
Description
Technical field
The present invention relates to the optical recorder that is radiated at recorded information on the optical recording media, optic recording method and optical recording media by light (for example laser).Particularly, the invention provides a kind of optical recorder, optic recording method and optical recording media that promptly uses lower recording power also can write down well to double-deck phase-change optical recording medium with 2 layers of rewritable recording film.
Background technology
Phase-change optical recording medium is to utilize the medium that possibility of reversal phenomenon between crystallization phase and the noncrystalline phase can rewrite information, and the CD-RW (repeatable recording type compact-disc), DVD-RW (repeatable recording type digital multi-purpose disk), the DVD-RAM (digital multi-purpose disk of storage-type at random of repeatable recording) that occur are in recent years for example arranged.Wherein, DVD-RW or DVD-RAM are mainly used in recording of information that contains much information and the rewriting as image information.
To such phase-change optical recording medium, except requiring good recording characteristic and rewriting characteristic,, the increase of recording capacity and the requirement of densification are also being increased from the viewpoint of long-time video recording and mass data storage.
Patent documentation 1: TOHKEMY 2001-283443 communique
In order to increase recording capacity, popularize the double deck type phase-change optical storage medium that has possessed 2 layers of unit record layer at least with recording film, as the fixed optical recorder of video recorder etc., the recording medium that portable optical recorders such as personal computer, camera integrated type optical pen recorder are used and using.
The double deck type phase-change optical storage medium is to have stacked gradually on substrate as the L0 layer of the first unit record layer with as the recording medium of the L1 layer of the second unit record layer, described substrate with the incident record, reproduce or deletion with the plane of incidence of laser as the bottom surface.
When the L1 layer was carried out record-playback, the L0 layer needed transmission laser.Therefore, the recording film or the reflectance coating of formation L0 layer (high transmission layer) form very thinly in order to improve transmissivity.On the other hand, need be and transmission laser in the double deck type phase change recording medium for one deck down as the L1 layer of innermost layer, so the recording film or the reflectance coating that constitute the L1 layer can form the enough thickness that can guarantee characteristic.
But, form thinlyyer even will constitute each film of L0 layer, also can only become below 50% from the light transmission of the laser-transmitting L0 layer of substrate-side irradiation.Therefore, when the L1 layer is write down, need irradiation to have to have considered in the absorption of the light of L0 layer or reflect the laser of power of the size of caused loss.Therefore, being used for the laser power of the record of L1 layer must be bigger than the laser power of the record that is used for the L0 layer.
In fixed optical recorder, the required laser power of the record of the L1 layer laser power more required than the record of L0 layer is big, and this is general out of question.But, in the portable optical recorder,,, wish to suppress the required laser power of record of L1 layer so do not wish to consume more electric power usually by battery-operated as far as possible.
In the one-piece type optical recorder of camera, for the miniaturization of installing, the optical recording media of the diameter 8cm that the service recorder capacity is little.Therefore, the optical recording media as camera integrated type optical pen recorder is used in order to increase writing time, needs to adopt double-deck phase-change optical recording medium.But, in existing optical recording media, exist the required laser power of the record of L1 layer big and be difficult to use in the problem of battery-driven camera integrated type optical pen recorder.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of optical recorder, optic recording method and optical recording media, the laser power of using in can the record with the inboard unit record layer in the optical recording media with a plurality of unit record layers is suppressed to lower.
In addition, its purpose also is to provide a kind of optical recorder, optic recording method and optical recording media, not only can carry out record to the unit record layer of inboard with low-power, can also carry out record with the common power greater than this power, and versatility is good.
In order to solve above-mentioned problem, the invention provides optical recorder, optic recording method and the optical recording media of formation with following (a)～(1).
(a) a kind of optical recorder, it is characterized in that, to having stacked gradually the first unit record layer L0 of recording film and had the optical recording media D of the second unit record layer L2 of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light L incident, utilize above-mentioned light recording information, this optical recorder comprises: recapiulation, read expression to first identifying information of first record condition of the above-mentioned first unit record layer and expression second identifying information to second record condition of the above-mentioned second unit record layer from above-mentioned optical recording media; Scrambler 42 is modulated above-mentioned information, generates modulating data; Tracer signal generating unit 41 generates tracer signal according to above-mentioned modulating data, and above-mentioned tracer signal comprises that wherein n is more than 3 and 14 following integers by mark lengths the nT mark that forms and the interval that is connected on this mark back of hope; Control part 45 carries out the unit record layer that writes above-mentioned information is switched to the above-mentioned first unit record layer, still switches to the control of the above-mentioned second unit record layer; Recording impulse string generating unit 39, be controlled to the above-mentioned first unit record layer at above-mentioned control part and write under the situation of above-mentioned information, according to above-mentioned first identifying information, generate a recording impulse corresponding to the above-mentioned mark lengths nT of above-mentioned tracer signal by n-1 with recording power, with during above-mentioned interval, be connected on the first recording impulse string P1 that pulse constitutes that appends that above-mentioned recording impulse takes place later with recording power, and, be controlled to the above-mentioned second unit record layer at above-mentioned control part and write under the situation of above-mentioned information, according to above-mentioned second identifying information, it is n/2 when generating by n corresponding to the above-mentioned mark lengths nT of above-mentioned tracer signal to even number, n is the second recording impulse string P2 that the recording impulse with recording power of (n-1)/2 constitutes during for odd number; And recording portion 400, to the above-mentioned light of above-mentioned first unit record layer irradiation, to the above-mentioned light of above-mentioned second unit record layer irradiation corresponding to the above-mentioned second recording impulse string corresponding to the above-mentioned first recording impulse string.
(b) a kind of optical recorder, it is characterized in that, to stacked gradually the first unit record layer L0 of recording film to the incident direction of above-mentioned light from the plane of incidence of light L incident with phase transformation, optical recording media D with the second unit record layer L1 of recording film with phase transformation, utilize above-mentioned light recording information, this optical recorder comprises: recapiulation, read first identifying information of expression to first record condition of the above-mentioned first unit record layer from above-mentioned optical recording media, expression is to second identifying information of second record condition of the above-mentioned second unit record layer, with three identifying information of expression to the 3rd record condition of the above-mentioned second unit record layer; Scrambler 42 is modulated above-mentioned information, generates modulating data; Tracer signal generating unit 41 generates tracer signal according to above-mentioned modulating data, and above-mentioned tracer signal comprises that wherein n is more than 3 and 14 following integers by mark lengths the nT mark that forms and the interval that is connected on this mark back of hope; Control part 45 carries out the unit record layer that writes above-mentioned information is switched to the above-mentioned first unit record layer, still switches to the control of the above-mentioned second unit record layer; Recording impulse string generating unit 39, be controlled to the above-mentioned first unit record layer at above-mentioned control part and write under the situation of above-mentioned information, according to above-mentioned first identifying information, generate a recording impulse corresponding to the above-mentioned mark lengths nT of above-mentioned tracer signal by n-1 with recording power, with during above-mentioned interval, be connected on the first recording impulse string P1 that pulse constitutes that appends that above-mentioned recording impulse takes place later with recording power, and, be controlled to the above-mentioned second unit record layer at above-mentioned control part and write under the situation of above-mentioned information, do not use above-mentioned second identifying information and, generate the 3rd recording impulse string P3 that constitutes by the recording impulse of the n-1 with recording power corresponding to the above-mentioned mark lengths nT of above-mentioned first recording impulse string or above-mentioned tracer signal according to above-mentioned the 3rd identifying information; And recording portion 400, to the above-mentioned light of above-mentioned first unit record layer irradiation, to the above-mentioned light of above-mentioned second unit record layer irradiation corresponding to above-mentioned first recording impulse string or above-mentioned the 3rd recording impulse string corresponding to the above-mentioned first recording impulse string.
(c) a kind of optic recording method, it is characterized in that, to having stacked gradually the first unit record layer L0 of recording film and had the optical recording media of the second unit record layer L1 of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light L incident, utilize above-mentioned light recording information, this optic recording method comprises: read step, read expression to first identifying information of first record condition of the above-mentioned first unit record layer and expression second identifying information to second record condition of the above-mentioned second unit record layer from above-mentioned optical recording media; Modulation step is modulated above-mentioned information, generates modulating data; Tracer signal generates step, generates tracer signal according to above-mentioned modulating data, and above-mentioned tracer signal comprises that wherein n is more than 3 and 14 following integers by mark lengths the nT mark that forms and the interval that is connected on this mark back of hope; Controlled step carries out the unit record layer that writes above-mentioned information is switched to the above-mentioned first unit record layer, still switches to the control of the above-mentioned second unit record layer; And recording step, according to above-mentioned tracer signal above-mentioned optical recording media is shone above-mentioned light, to above-mentioned first unit record layer or the above-mentioned recording of information mark of above-mentioned second unit record layer record expression; In the above-mentioned recording step, be controlled to the above-mentioned first unit record layer in above-mentioned controlled step and write under the situation of above-mentioned information, according to above-mentioned first identifying information, generate by the recording impulse of the n-1 with recording power corresponding to the above-mentioned mark lengths nT of above-mentioned tracer signal and during above-mentioned interval, be connected on the first recording impulse string P1 that pulse constitutes that appends that above-mentioned recording impulse takes place later, to the above-mentioned light of above-mentioned first unit record layer irradiation corresponding to the above-mentioned first recording impulse string with recording power; Be controlled to the above-mentioned second unit record layer in above-mentioned controlled step and write under the situation of above-mentioned information, according to above-mentioned second identifying information, be that n/2, n are the second recording impulse string P2 that the recording impulse with recording power of (n-1)/2 constitutes during for odd number when generating by n corresponding to the above-mentioned mark lengths nT of above-mentioned tracer signal, to the above-mentioned light of above-mentioned second unit record layer irradiation corresponding to the above-mentioned second recording impulse string to even number.
(d) a kind of optic recording method, it is characterized in that, to stacked gradually the first unit record layer L0 of recording film to the incident direction of above-mentioned light from the plane of incidence of light L incident with phase transformation, optical recording media D with the second unit record layer L1 of recording film with phase transformation, utilize above-mentioned light recording information, this optic recording method comprises: read step, read first identifying information of expression to first record condition of the above-mentioned first unit record layer from above-mentioned optical recording media, expression is to second identifying information of second record condition of the above-mentioned second unit record layer, with three identifying information of expression to the 3rd record condition of the above-mentioned second unit record layer; Modulation step is modulated above-mentioned information, generates modulating data; Tracer signal generates step, generates tracer signal according to above-mentioned modulating data, and above-mentioned tracer signal comprises that wherein n is more than 3 and 14 following integers by mark lengths the nT mark that forms and the interval that is connected on this mark back of hope; Controlled step carries out the unit record layer that writes above-mentioned information is switched to the above-mentioned first unit record layer, still switches to the control of the above-mentioned second unit record layer; And recording step, according to above-mentioned tracer signal above-mentioned optical recording media is shone above-mentioned light, to above-mentioned first unit record layer or the above-mentioned recording of information mark of above-mentioned second unit record layer record expression; In the above-mentioned recording step, be controlled to the above-mentioned first unit record layer in above-mentioned controlled step and write under the situation of above-mentioned information, according to above-mentioned first identifying information, generate by the recording impulse of the n-1 with recording power corresponding to the above-mentioned mark lengths nT of above-mentioned tracer signal and during above-mentioned interval, be connected on the first recording impulse string P1 that pulse constitutes that appends that above-mentioned recording impulse takes place later, to the above-mentioned light of above-mentioned first unit record layer irradiation corresponding to the above-mentioned first recording impulse string with recording power; Be controlled to the above-mentioned second unit record layer in above-mentioned controlled step and write under the situation of above-mentioned information, do not use above-mentioned second identifying information and according to above-mentioned the 3rd identifying information, generate the 3rd recording impulse string P3 that constitutes by the recording impulse of the n-1 with recording power corresponding to the above-mentioned mark lengths nT of above-mentioned first recording impulse string or above-mentioned tracer signal, to the above-mentioned light of above-mentioned second unit record layer irradiation corresponding to above-mentioned first recording impulse string or above-mentioned the 3rd recording impulse string.
(e) a kind of optical recording media, be the optical recording media D that utilizes the inversion of phases of light L recorded information, it is characterized in that, stacked gradually the first unit record layer L0 of recording film and had the second unit record layer L1 of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light incident; Write down first identifying information of the use first recording impulse string P1 in the record that is illustrated in the above-mentioned first unit record layer with physics mode in regulation zone 23, with second identifying information that uses the second recording impulse string P2 in the record that is illustrated in the above-mentioned second unit record layer, the above-mentioned first recording impulse string comprises the n-1 recording impulse with recording power corresponding to the above-mentioned mark lengths nT of tracer signal, with during above-mentioned interval, be connected on the pulse of appending that above-mentioned recording impulse takes place later with recording power, above-mentioned tracer signal comprises the mark that is formed by the mark lengths nT based on the hope of above-mentioned information and is connected on the interval of this mark back, wherein n is more than 3, and the integer below 14, the above-mentioned second recording impulse string is corresponding to being n/2 based on the above-mentioned mark lengths nT of the above-mentioned tracer signal of above-mentioned information and by n during for even number, n is that the recording impulse with recording power of (n-1)/2 constitutes during for odd number.
(f) optical recording media of putting down in writing as above-mentioned (d), it is characterized in that, write down the 3rd identifying information that uses the 3rd recording impulse string in the record that is illustrated in the above-mentioned second unit record layer with physics mode in the regulation zone, above-mentioned the 3rd recording impulse string is made of based on the above-mentioned mark lengths nT of the above-mentioned tracer signal of above-mentioned first recording impulse string or above-mentioned information and n-1 recording impulse with recording power correspondence.
(g) as above-mentioned (e) or (f) record optical recording media, it is characterized in that the afore mentioned rules zone is a Lead-In Area.
(h) a kind of optical recorder, to having stacked gradually the first unit record layer L0 of recording film and had the optical recording media of the second unit record layer L1 of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light L incident, utilize above-mentioned light recording information, it is characterized in that, this optical recorder comprises: recapiulation, read whether record the high sensitivity identifying information from above-mentioned optical recording media, the optimal recording power Po1 that above-mentioned high sensitivity identifying information is represented to use in the record to the above-mentioned second unit record layer is as in the 35mW; And control part 45, under the situation that reads out above-mentioned high sensitivity identifying information, be controlled to and have 35mW to the irradiation of the above-mentioned second unit record layer and write down above-mentioned information with the above-mentioned light of interior power, under the situation that does not read out above-mentioned high sensitivity identifying information, be controlled to not to the above-mentioned information of above-mentioned optical recording medium.
(i) a kind of optical recorder, to stacked gradually the first unit record layer L0 of recording film to the incident direction of above-mentioned light from the plane of incidence of light L incident with phase transformation, optical recording media with the second unit record layer L1 of recording film with phase transformation, utilize above-mentioned light recording information, it is characterized in that, this optical recorder comprises: recapiulation, read the first information or second information from above-mentioned optical recording media, the above-mentioned first information represent the optimal recording power Po1 that uses in the record to the above-mentioned second unit record layer be 35mW with the first interior power, the above-mentioned optimal recording power of above-mentioned second information representation is second power greater than 35mW; And control part 45, reading out by above-mentioned recapiulation under the situation of the above-mentioned first information, be controlled to the above-mentioned light that has above-mentioned first power to above-mentioned optical recording media irradiation and write down above-mentioned information, reading out under the situation of above-mentioned second information by above-mentioned recapiulation, be controlled to the above-mentioned light that has above-mentioned second power to above-mentioned optical recording media irradiation and write down above-mentioned information.
(i) a kind of optic recording method, to having stacked gradually the first unit record layer L0 of recording film and had the optical recording media of the second unit record layer L1 of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light L incident, utilize above-mentioned light recording information, it is characterized in that, this optic recording method comprises: read step, read whether record the high sensitivity identifying information from above-mentioned optical recording media, the optimal recording power Po1 that above-mentioned high sensitivity identifying information is represented to use in the record to the above-mentioned second unit record layer is as in the 35mW; And controlled step, read out in above-mentioned read step under the situation of above-mentioned high sensitivity identifying information, be controlled to and have 35mW to the irradiation of the above-mentioned second unit record layer and write down above-mentioned information with the above-mentioned light of interior power, do not read out in above-mentioned read step under the situation of above-mentioned high sensitivity identifying information, be controlled to not to the above-mentioned information of above-mentioned optical recording medium.
(k) a kind of optic recording method, to stacked gradually the first unit record layer L0 of recording film to the incident direction of above-mentioned light from the plane of incidence of light L incident with phase transformation, optical recording media with the second unit record layer L1 of recording film with phase transformation, utilize above-mentioned light recording information, it is characterized in that, this optic recording method comprises: read step, read the first information or second information from above-mentioned optical recording media, the above-mentioned first information represent the optimal recording power Po1 that uses in the record to the above-mentioned second unit record layer be 35mW with the first interior power, the above-mentioned optimal recording power of above-mentioned second information representation is second power greater than 35mW; And recording step, read out in above-mentioned read step under the situation of the above-mentioned first information, the above-mentioned light that has above-mentioned first power to above-mentioned optical recording media irradiation writes down above-mentioned information, read out in above-mentioned read step under the situation of above-mentioned second information, the above-mentioned light that has above-mentioned second power to above-mentioned optical recording media irradiation writes down above-mentioned information.
(1) a kind of optical recording media, be the optical recording media D that utilizes the inversion of phases of light L recorded information, it is characterized in that, stacked gradually the first unit record layer L0 of recording film and had the second unit record layer L1 of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light incident; Write down the high sensitivity identifying information in regulation zone 23 with physics mode, above-mentioned high sensitivity identifying information represents that the optimal recording power Po1 that uses in the record to the above-mentioned second unit record layer be 35mW with interior, the above-mentioned second unit record layer is can be with the highly sensitive unit record layer of 35mW with interior recording power record.
According to the present invention, can be reduced in the laser power of using in the record of inboard unit record layer, well recorded information.
Description of drawings
Fig. 1 is the figure of the opitical recording reconstruction device of expression one embodiment of the present invention.
Fig. 2 is the planimetric map of optical recording media D.
Fig. 3 is the longitudinal diagram of stepped construction of the optical recording media D of expression one embodiment of the present invention.
Fig. 4 is the figure of the first recording impulse string P1 of expression one embodiment of the present invention.
Fig. 5 is the figure of the second recording impulse string P2 of expression one embodiment of the present invention.
Fig. 6 is the figure of the 3rd recording impulse string P3 of expression one embodiment of the present invention.
Fig. 7 is the result's of expression first embodiment to the three embodiment a table.
Fig. 8 is the figure of the Lead-In Area 23 of expression first embodiment.
Fig. 9 is the figure of the Lead-In Area 23 of expression second embodiment.
Figure 10 is the process flow diagram of the action of high sensitivity optical recorder.
Figure 11 is the process flow diagram of the action of common sensitivity optical recorder.
Figure 12 is the process flow diagram of the action of common sensitivity optical recorder.
Embodiment
(first embodiment)
(opitical recording reconstruction device)
Fig. 1 illustrates an embodiment of opitical recording reconstruction device of the present invention.
At first, Spindle Motor 31 makes optical recording media D rotation.Spin Control portion 32 controls, and the rotating speed of Spindle Motor 31 is become and the corresponding line speed record of target record speed.In addition, on the radial direction of optical recording media D, move and the semiconductor laser (LD) 33 of the record, reproduction or the deletion that are used for optical recording media D is being set freely and is having the object lens (not shown) of the laser focusing irradiation that makes LD33 and four shaven heads 34 of cutting apart photo detector (not shown) for example.
And, the record light source that uses in the opitical recording reconstruction device as present embodiment, preferably laser, the such high-intensity light source of strobe light (strobe light).Wherein, because semiconductor laser can be realized the little and modulation easily of miniaturization, the consumption electric power of light source, so be preferred semiconductor laser.
Four of shaven head 34 is cut apart the reflected light that photo detector accepts to shine from LD33 the laser on the optical recording media D.Signal generating unit 57 is cut apart the light that photo detector is accepted according to four, generates push-pull signal, to 36 outputs of swing detection portion.In addition, according to the light that four cutting elements receive, signal generating unit 57 is to driving governor 44 output focus error signal and tracking error signals.Moreover signal generating unit 57 generates the reproducing signal (RF signal) of cutting apart the composite signal of photo detector as four, to reflectivity test section 46 and driving governor 44 outputs.
Driving governor 44 is according to focus error signal and the tracking error signal supplied with by signal generating unit 57, control brake control part 35.The focusing and the tracking of brake control section 35 control shaven heads 34.
Driving governor 44 is also controlled Spin Control portion 32, swing detection portion 36, address demodulator circuit 37, recording clock generating unit 38.
At this, describe the structure and the action that optical recording media D reproduces that relate to of opitical recording reconstruction device in detail.
Fig. 2 illustrates the planimetric map of optical recording media D.Optical recording media D has center pit 21 and is positioned at the pinch zones 22 of its periphery.In the periphery of pinch zones 22, on concentric circles, be provided with block of information (Lead-In Area) 23 and best power control band (OPC is with (zone)) 25, further, its outer regions becomes the recording areas 24 of real data such as being used for recording image information and acoustic information.
In the Lead-In Area 23 of present embodiment, identifying information described later is stored with the state that can read embossing processing (リ one ダ Block Le エ Application ボ ス) as physical form as reproducing special-purpose recorded information.In addition, also have by forming swing in high frequency or pit (pit), the method for storaging identificating information at the laser guidance groove that is used for obtaining trace information.
Record in the Lead-In Area 23 and be used to make optical recording media D to obtain the record condition that superperformance ground writes down, as identifying information.As described later, identifying information for example is the recording impulse string information that is illustrated in the recording impulse string that uses when forming based on the record mark of recorded information, comprise record with the laser intensity of laser (recording power Po described later or delete power P e etc.), represent the recording parameters (record condition) of its application time (pulse width) etc.In the present embodiment, the recording power Po recording characteristic that writing down the constituent parts recording layer becomes the value (optimal recording power) of best recording power.Moreover also the unit record number of plies amount that can have manufacturer's information of the kind of optical recording media D, optical recording media D or optical recording media D is as the identifying information record.
If the optical recording media D of the information that records in recording areas 24 has been installed at the installation portion 58 of opitical recording reconstruction device, then by the rotating speed of Spin Control portion 32 control Spindle Motors 31, make the rotation of optical recording media D become line speed record corresponding to target record speed.Shaven head 34 LD33 to Lead-In Area 23 irradiations faint read usefulness (reproduce with) laser, shaven head 34 is supplied with by four to signal generating unit 57 and is cut apart the reflected light that photo detector is accepted.LD33, shaven head 34 and signal generating unit 57 are as reproducing the recapiulation of recorded information from optical recording media D and moving.
Then, shaven head 34 is to the be subjected to light signal of signal generating unit 57 outputs from recording areas 24, and signal generating unit 57 generates reproducing signal and exports.Reproducing signal carries out demodulation and output by not shown demodulation section.Simultaneously, swing detection portion 36 detects swinging signal and LPP signal according to the radial push-pull signal of supplying with from signal generating unit 57, to 37 outputs of address demodulator circuit.
Below, the structure and the action of the record that relates to optical recording media D of opitical recording reconstruction device are described.
When having installed at the installation portion 58 of record reproducing device when recording areas 24 has the optical recording media D of recording portion not, bare headed 34 LD33 is to faint the reading of Lead-In Area 23 irradiations (reproduce and use) laser, and shaven head 34 will offer signal generating unit 57 by four reflected light of cutting apart photo detector acceptance.Signal generating unit 57 generates reproducing signal based on reflected light, supplies with the identifying information that reproducing signal has been carried out demodulation to system controller 45.As previously mentioned, identifying information comprises the recording impulse string information of expression recording parameters etc.
When optical recording media D was write down, system controller 45 moved as control part, and the switching of which unit record layer of being written to L0 layer and L1 layer is controlled.Then, reflectivity test section 46 is judged gradient positive and negative of the reflectance varies of unit record layers, and identification is L0 layer or L1 layer, and actuation control portion 35 control shaven heads 34 are for the focusing and the tracking of the unit record layer of having accepted to write indication.
Input is had PLL condensating synthesizering circuit 381 by the recording clock generating unit 38 of the address information of demodulation, generates the record channel clock, to recording impulse string generating unit 39 and 40 outputs of umber of pulse control portion.
The recorded information of 42 pairs of inputs of EFM+ scrambler is carried out the 8-16 modulation and as modulating data, is exported to recording impulse string generating unit 39 and mark lengths counter 41.Mark lengths counter 41 is counted the mark lengths of regulation according to modulating data, and this count value is exported to recording impulse string generating unit 39 and umber of pulse control portion 40.Mark lengths counter 41 moves as the tracer signal generating unit that generates tracer signal, and this tracer signal comprises mark lengths mark that forms and the interval (space) that is connected on this mark back by hope.Umber of pulse control portion 40 is according to count value that is supplied to and record channel clock, and controlling recording train of impulses generating unit 39 makes recording impulse become the pulse of regulation.
Recording impulse string generating unit 39 possesses initial pulse control signal generating unit 39t, multiple-pulse control signal generating unit 39m, end pulse control signal generating unit 391, cooling pulse control signal generating unit 39c, deletion initial pulse control signal generating unit 39et, generates the recording impulse string according to identifying information.
Initial pulse control signal generating unit 39t generates the initial pulse control signal, multiple-pulse control signal generating unit 39m generates the multiple-pulse control signal, cooling pulse control signal generating unit 39c generates the cooling pulse control signal, end pulse control signal generating unit 391 generates the end pulse control signal, and deletion initial pulse control signal generating unit 39et generates deletion initial pulse control signal.
Each control signal is provided for LD drive division 43, switching part 431 switches the drive current source 431b of drive current source 431e, the lowest power Pb of drive current source 431o, the deletion power P e of recording power Po, the drive current source 431et of deletion initial power Pet according to the control signal that is supplied to, and generates the recording impulse string thus.
Po drive current source 431o, Pe drive current source 431e, Pb drive current source 431b, Pet drive current source 431et are according to the recording power Po in the storer 451 that is stored in system controller 45, deletion power P e, lowest power Pb and deletion initial power Pet, to bare headed 34 supplying electric currents.These four values are the optimum values that are used to realize the good recording characteristic of optical recording media D, read the identifying information of this optimum value of expression from optical recording media D, and store storer 451 into.Storer 451 is for example recordable RAM (random access memory).
But the opitical recording reconstruction device of present embodiment can be set the line speed record of selecting from a plurality of line speed records corresponding with the high linear speed (high power speed) of optical recording media D.System controller 45 is imported when being used to select the indicator signal of line speed record (times fast mode), according to the identifying information that is stored in line speed record in the storer 451, that be instructed to, with above-mentioned Po drive current source 431o, Pe drive current source 431e, Pb drive current source 431b and the Pet drive current source 431et of similarly controlling.In storer 451, storing the identifying information of a plurality of line speed records as described above.
Import the recording impulse string that is generated to shaven head 34.Shaven head 34 records recorded information among the optical recording media D by controlling the LD luminescent waveform that has desirable recording impulse string of LD33 and power with output.
Recording impulse string generating unit 39, LD drive division 43 and bare headed 34 move as recording portion 400, this recording portion 400 is according to identifying information and generated the recording impulse string of hope by the tracer signal that mark lengths counter 41 generates, recording impulse string according to hope shines recording light from LD33 to recording film, the record mark of record expression recorded information.
In the above embodiment, illustrated that the record modulation system that generates the record mark data is the situation of EFM system, but also gone for 1-7 modulation system etc.
Use the opitical recording reconstruction device of present embodiment, recorded information in optical recording media D as follows.
Fig. 3 is the longitudinal diagram of the lit-par-lit structure of expression optical recording media D.
The L0 layer is formed on first substrate 1, and has stacked gradually the unit record layer of first diaphragm 2, first recording film 3, second diaphragm 4, first reflectance coating 5, high heat conduction film 6, the 3rd diaphragm 7.The L1 layer is formed on second substrate 12 of label surface 12B as the bottom surface with second substrate 12, is the unit record layer that has stacked gradually second reflectance coating 11, five guarantees cuticula 10, second recording film 9, the 4th diaphragm 8.The 3rd diaphragm 7 of L0 layer and the 4th diaphragm 8 of L1 layer are bonding opposed to each other mutually across middle layer 13 (adhesive linkage 13).That is, the L0 layer is the first unit record layer (high transmission layer) from the nearest front of plane of incidence 1A of the optical recording media D of laser L incident, and the L1 layer is to be positioned at from plane of incidence 1A by the second inboard unit record layer (innermost layer).
At thickness of slab is on first substrate 1 that becomes of the polycarbonate resin of 0.58mm, uses ZnS-SiO
2Formed first diaphragm 2 of thickness 66nm.Then; the plain single alloys target of quaternary of using Ag-In-Sb-Te successively with thickness 7nm stacked first recording layer 3; then use with first diaphragm, 2 identical materials with 9nm stacked second diaphragm 4, with the Ag alloys target with thickness 5nm stacked translucent first reflectance coating 5.On first reflectance coating 5, utilize Al-Nx (x is the degree of nitriding of adjusting with the import volume of nitrogen) to form high heat conduction film 6 with thickness 5nm; with forming thickness with first diaphragm, 2 identical materials is the 3rd diaphragm 7 of 56nm, has formed the L0 layer as the first unit record layer.
As the L1 layer of the second unit record layer be with thick second substrate of the same 0.60mm that is shaped of first substrate on; use successively the Ag alloys target with 80nm stacked second reflectance coating 11; with with first diaphragm, 2 identical materials with 15nm stacked five guarantees cuticula 10; with the plain single alloys target of the quaternary of Ag-In-Sb-Te with thickness 20nm stacked second recording film 9, use with first diaphragm, 2 identical materials with 66nm stacked the 4th diaphragm 8.
Use two sides adhesion type thin slice 13 (adhesive linkages 13) that the 3rd diaphragm 7 and the 4th diaphragm 8 are pasted opposed to each other, made two stratotype phase-change optical storage medium D.Optical recording media D is corresponding to the writing speed of two times of speed.
In addition, the diameter of first substrate 1 and second substrate 12 can be 120mm, also can be 80mm.
＜optic recording method 〉
As previously mentioned, in by battery-driven portable optical recorder, require to do one's utmost to suppress to consume electric power, the power of the laser L that uses when needing to reduce record.Therefore, in the portable optical recorder, can allow the power upper limit of the laser L that exports to be set at 35mW.In fixed optical recorder, can allow laser L above the power of 35mW, the upper limit is set at 45mW.
For the recording power with the L1 layer suppresses as described below optical recording media D to be carried out record for lower according to present inventor's understanding, investigate the recording characteristic of each optical recording media D.In the L0 of optical recording media D layer, use the first recording impulse string P2 described later to carry out record, in the L1 layer, used the first recording impulse string P1, the second recording impulse string P2 described later and the 3rd recording impulse string P3 respectively.
In the present embodiment, use the first recording impulse string P1 shown in Figure 4, the second recording impulse string P2 shown in Figure 5 and the 3rd recording impulse string P3 shown in Figure 6.
Fig. 4 (A) is as a routine tracer signal of representing to be used to form 8T mark and 3T mark, and Fig. 4 (B) expression is based on the recording impulse of the tracer signal of Fig. 4 (A).
The first recording impulse string P1 comprises shown in Fig. 4 (B): initial pulse Ttop, and e rises from the deletion power P, with recording power Po recording film is applied laser at first; Multiple-pulse Tmp is the pulse that is connected on initial pulse Ttop back, alternately applies recording power Po and lowest power Pb; Cooling pulse Tcl makes laser rise to deletion power P e from lowest power Pb; Deletion initial pulse Tet is the pulse that is connected on cooling pulse Tcl back, applies deletion initial pulse Pet.Deletion initial pulse Tet becomes the terminal corresponding to the first recording impulse string P1 of each mark.In the first recording impulse string P1 of present embodiment, establishing recording power Po is identical laser intensity with deletion initial power Pet.
Initial pulse Ttop and multiple-pulse Tmp become the heating pulse (recording impulse) that is used for forming record mark on recording film.
The first recording impulse string P1 is provided with 1 multiple-pulse Tmp in during 1T.At this, T is a unit clock, in two stratotype DVD (two stratotype phase-change optical storage medium D), and one times when fast (disk rotation speed is 3.84m/s), 1T=38.2ns, four times when fast (disk rotation speed is 15.4m/s), 1T=9.6ns.
Laser intensity with four values (recording power Po, deletion power P e, minimum for rate Pb, deletion initial power Pet) is modulated, increase and decrease the quantity of multiple-pulse Tmp corresponding to the mark lengths of hope, thereby carry out the record to optical recording media D based on the first recording impulse string P1.For example, if DVD-RW, the mark lengths nT of record mark has 3T, 4T, 5T, 6T, 7T, 8T, 9T, 10T, 11T, 14T 10 kinds.
In mark lengths is under the situation of nT, is the umber of pulse that initial pulse Ttop and multiple-pulse Tmp add up with first recording impulse recording impulse string P1, that apply recording power Po that constitutes present embodiment, is (n-1) shown in Fig. 4 (B).
Fig. 5 (A) expression is used to form the tracer signal of above-mentioned 3T～14T mark, and Fig. 5 (B) expression is based on the recording impulse of the 3T mark of the tracer signal of Fig. 5 (A), and Fig. 5 (C) represents the recording impulse of 11T mark, the recording impulse of Fig. 5 (D) expression 14T mark.
The second recording impulse string P2 is shown in Fig. 5 (B)～(D), and is inequality respectively when the n of mark lengths nT is odd number, even number.
At first, illustrate that n is the situation of odd number.
Be (3T) under 3 the situation at the n of mark lengths nT, the second recording impulse string P2 comprises: initial pulse Ttop, and e rises from the deletion power P, applies laser with recording power Po to recording film at first; Cooling pulse Tcl is the pulse that is connected on initial pulse Ttop back, applies after the laser with lowest power Pb, and e applies laser with the deletion power P.
Under n was situation greater than 3 odd number, the second recording impulse string P2 comprised: initial pulse Ttop; Multiple-pulse is the pulse that is connected on initial pulse Ttop back, alternately applies recording power Po and lowest power Pb; Pulse Tlp in end makes laser rise to recording power Po from lowest power Pb; And cooling pulse Tcl, make laser rise to deletion power P e from lowest power Pb.
Initial pulse Ttop, multiple-pulse Tmp and end pulse Tlp are the recording impulses that is used for forming record mark on recording film.Wherein, be under 3 the situation at n, owing to do not have multiple-pulse Tmp and end pulse Tlp, so recording impulse is initial pulse Ttop.N is under the situation of odd number, and the quantity that initial pulse Ttop, multiple-pulse Tmp and end pulse Tlp are added up becomes (n-1)/2.
The following describes the situation that n is an even number.
At the n of mark lengths nT is under the situation of even number, and the second recording impulse string P2 comprises initial pulse Ttop, multiple-pulse Tmp, end pulse Tlp and cooling pulse Tcl.Any pulse all be the pulsion phase that illustrates during for odd number with n with pulse.Initial pulse Ttop, multiple-pulse Tmp and end pulse Tlp are recording impulses, and the quantity that these pulses are added up becomes n/2.
The second recording impulse string P2 is the train of impulses that is provided with 1 multiple-pulse Tmp in 4T～14T mark during 2T.Corresponding to the mark lengths nT of hope, the quantity of increase and decrease multiple-pulse Tmp.
The second recording impulse string P2 shown in Figure 5 is that the quantity of recording impulse is identical under k and the situation (k+1) (n=4 and 5,6 and 7,8 and 9,10 and 11) at the n of mark lengths nT.At n=k with (k+1) time, by adjusting the application time (pulse width) of end pulse Tlp, as with each mark lengths nT corresponding heat time heating time.
Fig. 6 (A) is as a routine tracer signal of representing to be used to form 8T mark and 3T mark, and Fig. 6 (B) expression is based on the recording impulse of the tracer signal of Fig. 6 (A).
The 3rd recording impulse string P3 comprises shown in Fig. 6 (B): initial pulse Ttop, and e rises from the deletion power P, with recording power Po recording film is applied laser at first; Multiple-pulse Tmp is the pulse that is connected on initial pulse Ttop back, alternately applies recording power Po and lowest power Pb; Cooling pulse Tcl makes laser rise to deletion power P e from lowest power Pb.Cooling pulse Tcl becomes the terminal corresponding to the 3rd recording impulse string P3 of each mark.Initial pulse Ttop and multiple-pulse Tmp become the recording impulse that is used for forming record mark on recording film.In addition, do not have multiple-pulse Tmp sometimes, only use initial pulse Ttop to form the 3rd recording impulse string P3.
Be (n-1) with constituting the add up umber of pulse of (recording impulse) of the initial pulse Ttop of the 3rd train of impulses P3 of present embodiment and multiple-pulse Tmp, during 1T, be provided with 1 multiple-pulse Tmp.
In addition, in any recording impulse string of present embodiment, laser intensity all is the relation of Po＞Pe＞Pb.As long as each application time (pulsewidth) is set at the value that the optical recording media D that makes recorded information becomes the best titime characteristic.
The structure of the first recording impulse string P1 shown in Fig. 4 (B) is after the cooling pulse Tcl as the terminal of the 3rd recording impulse string P3 shown in Fig. 6 (B), has appended the deletion initial pulse Tet that rises to the high deletion initial power Pet of power ratio deletion power P e and drop to deletion power P e.Especially be preferred for the record of L0 layer.
Compare with the first recording impulse string P1 or the 3rd recording impulse string P3, the second recording impulse string P2 shown in Fig. 5 (B)～(D) has the effect of the rising that suppresses recording power Po.
The 3rd recording impulse string P3 has the structure that the deletion initial power Pet of the first recording impulse string P1 is made as 0 (not deleting initial pulse Tet), so compare with the first recording impulse string P1, the mean value that is applied to the laser power on the recording film can be suppressed lower.
(first embodiment)
Utilize the first recording impulse string P1 to carry out record at the L0 layer, utilize the second recording impulse string P2 to carry out record at the L1 layer.Line speed record is 7.5m/s (two times of speed of DVD).
Optimal recording power Po0 in the L0 layer is 20mW, and the shake (jitter) of this moment is 8.7%.Optimal recording power refers to the recording power of shake expression minimum value.Optimal recording power Po1 in the L1 layer is 32mW, and the shake of this moment is 8.5%.The power ratio (Po1/Po0) of the optimal recording power Po0 of L0 layer and the optimal recording power Po1 of L1 layer is 1.6.The degree of modulation of L1 layer is 55%.At this, then up to specification if degree of modulation is represented the value more than 50%, be preferred.The result of these results and second embodiment described later, the 3rd embodiment is shown in Fig. 7 in the lump.
(second embodiment)
Utilize the first recording impulse string P1 to carry out record at the L0 layer, utilize the first recording impulse string P1 to carry out record at the L1 layer.Line speed record is 7.5m/s (two times of speed of DVD).
Optimal recording power Po0 in the L0 layer is 20mW, and the shake of this moment is 8.7%.Optimal recording power Po1 in the L1 layer is 37mW, and the shake of this moment is 8.3%.The power ratio (Po1/Po0) of the optimal recording power Po0 of L0 layer and the optimal recording power Po1 of L1 layer is 1.85.The degree of modulation of L1 layer is 53%, shows good value.
(the 3rd embodiment)
Utilize the first recording impulse string P1 to carry out record at the L0 layer, utilize the 3rd recording impulse string P3 to carry out record at the L1 layer.Line speed record is 7.5m/s (two times of speed of DVD).
Optimal recording power Po0 in the L0 layer is 20mW, and the shake of this moment is 8.7%.Optimal recording power Po1 in the L1 layer is 37mW, and the shake of this moment is 8.1%.The power ratio (Po1/Po0) of the optimal recording power Po0 of L0 layer and the optimal recording power Po1 of L1 layer is 1.85.The degree of modulation of L1 layer is 53% o'clock, and good value is shown.
By the first above embodiment～the 3rd embodiment as can be known, if as first embodiment, the L1 layer is carried out record based on the second recording impulse string P2, then compare with the 3rd embodiment, the optimal recording power Po1 in the L1 layer can be suppressed for lower with second embodiment.
In addition, if the recording method of first embodiment, then the optimal recording power Po1 of L1 layer is 32mW, so use the portable optical recorder of the upper limit output power of laser L as 35mW, can obtain good recording characteristic.
Therefore, the portable optical recorder preferably adopts to utilize and has 35mW with the laser L of the interior power high sensitivity optic recording method to L1 layer recorded information.If the high sensitivity optic recording method then can suppress the power of the laser L of use when the L1 layer writes down can obtain very good recording characteristic for lower in optical recording media D.
On the other hand, fixed optical recorder such as video recorder allows the output of power greater than the laser L of 35mW, so can use as second embodiment and the 3rd embodiment optimal recording power Po1 to become the recording method of 37mW.
If L0 layer and L1 layer all use the first same recording impulse string P1 as second embodiment, then can realize the design and the control of opitical recording reconstruction device easily, be preferred.In addition, even as the 3rd embodiment, change the recording impulse string that uses in L0 layer and the L1 layer, as described later, the first recording impulse string P1 and the difference of the 3rd recording impulse string P3 on the recording impulse string structure only are to delete having or not of initial pulse Tet, so the control of opitical recording reconstruction device does not complicate, be preferred.Moreover in any of second embodiment and the 3rd embodiment, optical recording media D can obtain good recording characteristic.
Therefore, in fixed optical recorder, also can adopt the common sensitivity optic recording method that utilizes laser L recorded information for the L1 layer with power bigger than 35mW.
At this, fixed optical recorder is called common sensitivity optical recorder, the low portable optical recorder of the upper limit of comparing exportable laser power with fixed optical recorder is called the high sensitivity optical recorder.The only corresponding high sensitivity optic recording method of high sensitivity optical recorder in the present embodiment.Common sensitivity optical recorder has both situation of the situation of only corresponding common sensitivity optic recording method and corresponding high sensitivity optic recording method and common sensitivity optic recording method.
In addition, optical recording media D is not limited to L0 layer shown in Figure 3, the membrane structure of L1 layer.Even other membrane structure if come recorded information with high sensitivity or common sensitivity optic recording method, then also can obtain and recording characteristic that first embodiment～the 3rd embodiment is identical.
Below, at Fig. 8 the mode chart of the Lead-In Area 23 of the optical recording media D of the present embodiment of record-playback in the opitical recording reconstruction device of present embodiment is shown.In the back of Lead-In Area 23, be formed with OPC continuously and be with 25 and recording areas 24.
At Lead-In Area 23, with as the state recording that can read embossing processing (リ one ダ Block Le エ Application ボ ス) of physical form expression to first identifying information of first record condition of L0 layer, expression to second identifying information of second record condition of L1 layer and expression the 3rd identifying information to the 3rd record condition of L1 layer.First identifying information and second identifying information must records, but the 3rd identifying information is the option to the record condition of L1 layer, and record gets final product as required.
First identifying information～the 3rd identifying information comprises the laser intensity of the laser L that uses in each record of expression and the recording parameters of its application time etc. as mentioned above.
Among the optical recording media D of present embodiment, writing down first record condition that is used to generate the first recording impulse string P1 as first identifying information, write down second record condition that is used to generate the second recording impulse string P2 as second identifying information, writing down the 3rd record condition that is used to generate the first recording impulse string P1 or the 3rd recording impulse string P3 as the 3rd identifying information.
As previously mentioned, using high sensitivity (portable) optical recorder under the situation of optical recording media D recorded information, preferably adopt the high sensitivity optic recording method.Thereby, as long as read first identifying information and second identifying information from Lead-In Area 23, according to first identifying information and use the first recording impulse string P1 that the L0 layer is carried out record, according to second identifying information and use the second recording impulse string P2 that the L1 layer is write down to get final product.
Using common sensitivity (fixed) optical recorder under the situation of optical recording media D recorded information, preferably adopt common sensitivity optic recording method.Thereby, as long as read first identifying information～the 3rd identifying information from Lead-In Area 23, according to first identifying information and use the first recording impulse string P1 that the L0 layer is carried out record, and, do not use second identifying information but according to the 3rd identifying information and use the first recording impulse string P1 or the 3rd recording impulse string P3 writes down the L1 layer and gets final product.
As mentioned above, the 3rd identifying information is to the option of the record condition of L1 layer rather than necessary, so, if at Lead-In Area 23 record first identifying information and second identifying informations, just can obtain good recording characteristic in the high sensitivity optical recorder, be preferred therefore.But, if as present embodiment, if, then in high sensitivity optical recorder and common sensitivity optical recorder, can carry out record well at Lead-In Area 23 record first identifying information～the 3rd identifying informations, versatility is good, so be that choosing is more arranged.
＜the second embodiment 〉
Will be in the common sensitivity of first embodiment and high sensitivity optical recorder among the optical recording media D of record-playback, can carry out the structure of best titime in the high sensitivity optical recorder optical recording media is called high sensitivity optical recording media Dh, and the optical recording media that can carry out the structure of best titime in common sensitivity optical recorder is called common sensitivity optical recording media D1.
Fig. 9 illustrates the mode chart of the Lead-In Area 23 of high sensitivity optical recording media Dh and common sensitivity optical recording media D1.In the back of Lead-In Area 23, be formed with OPC continuously and be with 25 and recording areas 24.At Lead-In Area 23, the state that can read embossing processing with as physical form records the high sensitivity distinguishing mark with various information, as identifying information.
The high sensitivity distinguishing mark is identifying information (a high sensitivity identifying information), and the optimal recording power Po1 in the expression L1 layer is that 35mW is can be with having the high sensitivity unit record of 35mW with the laser L record of interior power (recording power Po) with interior, L1 layer.
If being recorded in the high sensitivity distinguishing mark of Lead-In Area 23 is 1, represent that then the L1 layer is highly sensitive unit record layer, if the high sensitivity distinguishing mark is 0, represent that then the L1 layer is the unit record layer of common sensitivity.Common sensitivity refers to the L1 layer can use recording power Po record greater than 35mW.
Have in the Lead-In Area 23 of high sensitivity optical recording media Dh of the structure that in the high sensitivity optical recorder, can carry out best titime, record high sensitivity distinguishing mark 1.
Have in the Lead-In Area 23 of common sensitivity optical recording media D1 of the structure that in common sensitivity optical recorder, can carry out best titime, write down high sensitivity distinguishing mark 0.
Figure 10 illustrates the action of the high sensitivity optical recorder that begins to carry out when optical recording media D inserts the high sensitivity optical recorder with process flow diagram.The high sensitivity optical recorder has the structure identical with opitical recording reconstruction device shown in Figure 1, and action is also identical in detail for it.
The high sensitivity optical recorder uses the kind (for example reproduce special use, rewrite usefulness, individual layer, bilayer etc.) of reflectivity test section 46 identification optical recording media D at step S1.Then, at step S2, read various signals from Lead-In Area 23 by recapiulation.Then, at step S3, system controller 45 judges that the high sensitivity distinguishing mark that is included in the various information that read is 1 or 0.System controller 45 is 1 if identify the high sensitivity distinguishing mark that is read, then enter step S4, the standby under based on the state of the high sensitivity logging mode of high sensitivity optic recording method of control each several part, this high sensitivity optic recording method are to have 35mW to the irradiation of L1 layer to come recorded information with the laser L of interior recording power Po.On the other hand, if the high sensitivity identification marking is 0, then the control system controller 45, make step S5 not recorded information just discharge optical recording media D.System controller 45 moves as control part.
The high sensitivity optical recorder carries out record based on the high sensitivity optic recording method to high sensitivity optical recording media Dh, and to not just discharge of recorded information of common sensitivity optical recording media D1.
Figure 11 illustrates the action of the common sensitivity optical recorder that begins to carry out when optical recording media D only inserts common sensitivity optical recorder corresponding to common sensitivity optic recording method with process flow diagram.Carry out the action same at step S1～step S3, so omit explanation with high sensitivity optical recorder shown in Figure 10.
Common sensitivity optical recorder is contained in the high sensitivity distinguishing mark from the various information that optical recording media D reads at step S2 in step S3 judgement, if the high sensitivity distinguishing mark is 1, discharges optical recording media D at step S6.On the other hand, if the high sensitivity distinguishing mark is 0, then enter step S7, standby under based on the state of the common sensitivity logging mode of common sensitivity optic recording method, this common sensitivity optic recording method is to carry out record to the laser L that the irradiation of L1 layer has greater than the power of 35mW.
Only, common sensitivity optical recording media D1 is carried out record based on common sensitivity optic recording method corresponding to the common sensitivity optical recorder of common sensitivity optic recording method, and to not just discharge of recorded information of high sensitivity optical recording media D.
Action that begin, common sensitivity optical recorder when Figure 12 illustrates optical recording media D and is inserted in some common sensitivity optical recorders that writes down accordingly with high sensitivity or common sensitivity optic recording method with process flow diagram.Step S1～step S3 carries out the action identical with high sensitivity optical recorder shown in Figure 10, so omit explanation.
Common sensitivity optical recorder is contained in the high sensitivity distinguishing mark from the various information that optical recording media D reads at step S2 in step S3 judgement, if the high sensitivity distinguishing mark is 1, then enter into step S8, standby under the state of high sensitivity logging mode.On the other hand, if the high sensitivity distinguishing mark is 0, then enter into step S9, standby under the state of common sensitivity logging mode.
Corresponding to any the common sensitivity optical recorder that writes down in high sensitivity or the common sensitivity optic recording method, can carry out record to all optical recording media D (D1, Dh).
When the step S5 of above explanation or step S6 discharge the optical recording media D that is inserted into, can be on display device indicator gauge be shown in the opitical recording reconstruction device image that can not write down optical recording media D, the perhaps sound by the same content of voice output unit output expression.As long as image and sound are recorded in optical recording media D or the opitical recording reconstruction device.
Write down the high sensitivity distinguishing marks and judge that in opitical recording reconstruction device the high sensitivity distinguishing mark is 1 or 0 by Lead-In Area 23 at optical recording media D, can prevent from the recording film irradiation that only is inserted into the high sensitivity optical recording media Dh in the common sensitivity optical recorder that writes down based on common sensitivity optic recording method is had the laser L of big recording power, perhaps prevent from the high sensitivity optical recorder, common sensitivity optical recording media D1 to be carried out record based on the high sensitivity optic recording method.
Claims (12)
1, a kind of optical recorder, it is characterized in that, to having stacked gradually the first unit record layer of recording film and had the optical recording media of the second unit record layer of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light incident, utilize above-mentioned light recording information, this optical recorder comprises:
Recapiulation reads expression to first identifying information of first record condition of the above-mentioned first unit record layer and expression second identifying information to second record condition of the above-mentioned second unit record layer from above-mentioned optical recording media;
Scrambler is modulated above-mentioned information, generates modulating data;
The tracer signal generating unit generates tracer signal according to above-mentioned modulating data, and above-mentioned tracer signal comprises that wherein n is more than 3 and 14 following integers by mark lengths n the T mark that forms and the interval that is connected on this mark back of hope;
Control part carries out the unit record layer that writes above-mentioned information is switched to the above-mentioned first unit record layer, still switches to the control of the above-mentioned second unit record layer;
Recording impulse string generating unit, be controlled to the above-mentioned first unit record layer at above-mentioned control part and write under the situation of above-mentioned information, according to above-mentioned first identifying information, generate a recording impulse corresponding to the above-mentioned mark lengths n T of above-mentioned tracer signal by n-1 with recording power, with during above-mentioned interval, be connected on the first recording impulse string that pulse constitutes that appends that above-mentioned recording impulse takes place later with recording power, and, be controlled to the above-mentioned second unit record layer at above-mentioned control part and write under the situation of above-mentioned information, according to above-mentioned second identifying information, it is n/2 when generating by n corresponding to the above-mentioned mark lengths n T of above-mentioned tracer signal to even number, n is the second recording impulse string that the recording impulse with recording power of (n-1)/2 constitutes during for odd number; And
Recording portion is to the above-mentioned light of above-mentioned first unit record layer irradiation corresponding to the above-mentioned first recording impulse string, to the above-mentioned light of above-mentioned second unit record layer irradiation corresponding to the above-mentioned second recording impulse string.
2, a kind of optical recorder, it is characterized in that, to having stacked gradually the first unit record layer of recording film and had the optical recording media of the second unit record layer of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light incident, utilize above-mentioned light recording information, this optical recorder comprises:
Recapiulation, from above-mentioned optical recording media read expression to first identifying information of first record condition of the above-mentioned first unit record layer, expression to second identifying information of second record condition of the above-mentioned second unit record layer and expression the 3rd identifying information to the 3rd record condition of the above-mentioned second unit record layer;
Scrambler is modulated above-mentioned information, generates modulating data;
The tracer signal generating unit generates tracer signal according to above-mentioned modulating data, and above-mentioned tracer signal comprises that wherein n is more than 3 and 14 following integers by mark lengths n the T mark that forms and the interval that is connected on this mark back of hope;
Control part carries out the unit record layer that writes above-mentioned information is switched to the above-mentioned first unit record layer, still switches to the control of the above-mentioned second unit record layer;
Recording impulse string generating unit, be controlled to the above-mentioned first unit record layer at above-mentioned control part and write under the situation of above-mentioned information, according to above-mentioned first identifying information, generate a recording impulse corresponding to the above-mentioned mark lengths n T of above-mentioned tracer signal by n-1 with recording power, with during above-mentioned interval, be connected on the first recording impulse string that pulse constitutes that appends that above-mentioned recording impulse takes place later with recording power, and, be controlled to the above-mentioned second unit record layer at above-mentioned control part and write under the situation of above-mentioned information, do not use above-mentioned second identifying information and, generate the 3rd recording impulse string that constitutes by the recording impulse of the n-1 with recording power corresponding to the above-mentioned mark lengths n T of above-mentioned first recording impulse string or above-mentioned tracer signal according to above-mentioned the 3rd identifying information; And
Recording portion is to the above-mentioned light of above-mentioned first unit record layer irradiation corresponding to the above-mentioned first recording impulse string, to the above-mentioned light of above-mentioned second unit record layer irradiation corresponding to above-mentioned first recording impulse string or above-mentioned the 3rd recording impulse string.
3, a kind of optic recording method, it is characterized in that, to having stacked gradually the first unit record layer of recording film and had the optical recording media of the second unit record layer of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light incident, utilize above-mentioned light recording information, this optic recording method comprises:
Read step reads expression to first identifying information of first record condition of the above-mentioned first unit record layer and expression second identifying information to second record condition of the above-mentioned second unit record layer from above-mentioned optical recording media;
Modulation step is modulated above-mentioned information, generates modulating data;
Tracer signal generates step, generates tracer signal according to above-mentioned modulating data, and above-mentioned tracer signal comprises that wherein n is more than 3 and 14 following integers by mark lengths n the T mark that forms and the interval that is connected on this mark back of hope;
Controlled step carries out the unit record layer that writes above-mentioned information is switched to the above-mentioned first unit record layer, still switches to the control of the above-mentioned second unit record layer; And
Recording step shines above-mentioned light according to above-mentioned tracer signal to above-mentioned optical recording media, to above-mentioned first unit record layer or the above-mentioned recording of information mark of above-mentioned second unit record layer record expression;
In the above-mentioned recording step, be controlled to the above-mentioned first unit record layer in above-mentioned controlled step and write under the situation of above-mentioned information, according to above-mentioned first identifying information, generate by the recording impulse of the n-1 with recording power corresponding to the above-mentioned mark lengths n T of above-mentioned tracer signal and during above-mentioned interval, be connected on the first recording impulse string that pulse constitutes that appends that above-mentioned recording impulse takes place later, to the above-mentioned light of above-mentioned first unit record layer irradiation corresponding to the above-mentioned first recording impulse string with recording power;
Be controlled to the above-mentioned second unit record layer in above-mentioned controlled step and write under the situation of above-mentioned information, according to above-mentioned second identifying information, be that n/2, n are the second recording impulse string that the recording impulse with recording power of (n-1)/2 constitutes during for odd number when generating by n corresponding to the above-mentioned mark lengths n T of above-mentioned tracer signal, to the above-mentioned light of above-mentioned second unit record layer irradiation corresponding to the above-mentioned second recording impulse string to even number.
4, a kind of optic recording method, it is characterized in that, to having stacked gradually the first unit record layer of recording film and had the optical recording media of the second unit record layer of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light incident, utilize above-mentioned light recording information, this optic recording method comprises:
Read step, from above-mentioned optical recording media read expression to first identifying information of first record condition of the above-mentioned first unit record layer, expression to second identifying information of second record condition of the above-mentioned second unit record layer and expression the 3rd identifying information to the 3rd record condition of the above-mentioned second unit record layer;
Modulation step is modulated above-mentioned information, generates modulating data;
Tracer signal generates step, generates tracer signal according to above-mentioned modulating data, and above-mentioned tracer signal comprises that wherein n is more than 3 and 14 following integers by mark lengths n the T mark that forms and the interval that is connected on this mark back of hope;
Controlled step carries out the unit record layer that writes above-mentioned information is switched to the above-mentioned first unit record layer, still switches to the control of the above-mentioned second unit record layer; And
Recording step shines above-mentioned light according to above-mentioned tracer signal to above-mentioned optical recording media, to above-mentioned first unit record layer or the above-mentioned recording of information mark of above-mentioned second unit record layer record expression;
In the above-mentioned recording step, be controlled to the above-mentioned first unit record layer in above-mentioned controlled step and write under the situation of above-mentioned information, according to above-mentioned first identifying information, generate by the recording impulse of the n-1 with recording power corresponding to the above-mentioned mark lengths n T of above-mentioned tracer signal and during above-mentioned interval, be connected on the first recording impulse string that pulse constitutes that appends that above-mentioned recording impulse takes place later, to the above-mentioned light of above-mentioned first unit record layer irradiation corresponding to the above-mentioned first recording impulse string with recording power;
Be controlled to the above-mentioned second unit record layer in above-mentioned controlled step and write under the situation of above-mentioned information, do not use above-mentioned second identifying information and according to above-mentioned the 3rd identifying information, generate the 3rd recording impulse string that constitutes by the recording impulse of the n-1 with recording power corresponding to the above-mentioned mark lengths n T of above-mentioned first recording impulse string or above-mentioned tracer signal, to the above-mentioned light of above-mentioned second unit record layer irradiation corresponding to above-mentioned first recording impulse string or above-mentioned the 3rd recording impulse string.
5, a kind of optical recording media is the optical recording media that utilizes the inversion of phases of light recording information, it is characterized in that,
Stacked gradually the first unit record layer of recording film and had the second unit record layer of the recording film of phase transformation to the incident direction of above-mentioned light from the plane of incidence of light incident with phase transformation;
Write down first identifying information of the use first recording impulse string in the record that is illustrated in the above-mentioned first unit record layer with physics mode in the regulation zone, with second identifying information that uses the second recording impulse string in the record that is illustrated in the above-mentioned second unit record layer, the above-mentioned first recording impulse string comprises the n-1 recording impulse with recording power corresponding to the above-mentioned mark lengths n T of tracer signal, with during above-mentioned interval, be connected on the pulse of appending that above-mentioned recording impulse takes place later with recording power, above-mentioned tracer signal comprises the mark that is formed by the mark lengths n T based on the hope of above-mentioned information and is connected on the interval of this mark back, wherein n is more than 3, and the integer below 14, the above-mentioned second recording impulse string is corresponding to being n/2 based on the above-mentioned mark lengths n T of the above-mentioned tracer signal of above-mentioned information and by n during for even number, n is that the recording impulse with recording power of (n-1)/2 constitutes during for odd number.
6, optical recording media as claimed in claim 5 is characterized in that,
Write down the 3rd identifying information that uses the 3rd recording impulse string in the record that is illustrated in the above-mentioned second unit record layer with physics mode in the regulation zone, above-mentioned the 3rd recording impulse string is corresponding to being made of the recording impulse of the n-1 with recording power based on the above-mentioned mark lengths n T of the above-mentioned tracer signal of above-mentioned first recording impulse string or above-mentioned information.
7, as claim 5 or 6 described optical recording medias, it is characterized in that,
The afore mentioned rules zone is a Lead-In Area.
8, a kind of optical recorder, to having stacked gradually the first unit record layer of recording film and had the optical recording media of the second unit record layer of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light incident, utilize above-mentioned light recording information, it is characterized in that this optical recorder comprises:
Recapiulation reads whether record the high sensitivity identifying information from above-mentioned optical recording media, and the optimal recording power that above-mentioned high sensitivity identifying information is represented to use in the record to the above-mentioned second unit record layer is as in the 35mW; And
Control part, under the situation that reads out above-mentioned high sensitivity identifying information, be controlled to and have 35mW to the irradiation of the above-mentioned second unit record layer and write down above-mentioned information with the above-mentioned light of interior power, under the situation that does not read out above-mentioned high sensitivity identifying information, be controlled to not to the above-mentioned information of above-mentioned optical recording medium.
9, a kind of optical recorder, to having stacked gradually the first unit record layer of recording film and had the optical recording media of the second unit record layer of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light incident, utilize above-mentioned light recording information, it is characterized in that this optical recorder comprises:
Recapiulation, read the first information or second information from above-mentioned optical recording media, the above-mentioned first information represent the optimal recording power that uses in the record to the above-mentioned second unit record layer be 35mW with the first interior power, the above-mentioned optimal recording power of above-mentioned second information representation is second power greater than 35mW; And
Control part, reading out by above-mentioned recapiulation under the situation of the above-mentioned first information, be controlled to the above-mentioned light that has above-mentioned first power to above-mentioned optical recording media irradiation and write down above-mentioned information, reading out under the situation of above-mentioned second information by above-mentioned recapiulation, be controlled to the above-mentioned light that has above-mentioned second power to above-mentioned optical recording media irradiation and write down above-mentioned information.
10, a kind of optic recording method, to having stacked gradually the first unit record layer of recording film and had the optical recording media of the second unit record layer of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light incident, utilize above-mentioned light recording information, it is characterized in that this optic recording method comprises:
Read step reads whether record the high sensitivity identifying information from above-mentioned optical recording media, and the optimal recording power that above-mentioned high sensitivity identifying information is represented to use in the record to the above-mentioned second unit record layer is as in the 35mW; And
Controlled step, read out in above-mentioned read step under the situation of above-mentioned high sensitivity identifying information, be controlled to and have 35mW to the irradiation of the above-mentioned second unit record layer and write down above-mentioned information with the above-mentioned light of interior power, do not read out in above-mentioned read step under the situation of above-mentioned high sensitivity identifying information, be controlled to not to the above-mentioned information of above-mentioned optical recording medium.
11, a kind of optic recording method, to having stacked gradually the first unit record layer of recording film and had the optical recording media of the second unit record layer of the recording film of phase transformation to the incident direction of above-mentioned light with phase transformation from the plane of incidence of light incident, utilize above-mentioned light recording information, it is characterized in that this optic recording method comprises:
Read step, read the first information or second information from above-mentioned optical recording media, the above-mentioned first information represent the optimal recording power that uses in the record to the above-mentioned second unit record layer be 35mW with the first interior power, the above-mentioned optimal recording power of above-mentioned second information representation is second power greater than 35mW; And
Recording step, read out in above-mentioned read step under the situation of the above-mentioned first information, the above-mentioned light that has above-mentioned first power to above-mentioned optical recording media irradiation writes down above-mentioned information, read out in above-mentioned read step under the situation of above-mentioned second information, the above-mentioned light that has above-mentioned second power to above-mentioned optical recording media irradiation writes down above-mentioned information.
12, a kind of optical recording media is the optical recording media that utilizes the inversion of phases of light recording information, it is characterized in that,
Stacked gradually the first unit record layer of recording film and had the second unit record layer of the recording film of phase transformation to the incident direction of above-mentioned light from the plane of incidence of above-mentioned smooth incident with phase transformation;
Write down the high sensitivity identifying information in the regulation zone with physics mode, above-mentioned high sensitivity identifying information represents that the optimal recording power that uses in the record to the above-mentioned second unit record layer be 35mW with interior, the above-mentioned second unit record layer is can be with the highly sensitive unit record layer of 35mW with interior recording power record.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102656634A (en) * | 2009-12-18 | 2012-09-05 | 松下电器产业株式会社 | Optical information recording method, optical information recording device, optical information reproduction method, optical information reproduction device and optical information recording medium |
| CN107256372A (en) * | 2013-12-03 | 2017-10-17 | 万代股份有限公司 | Information keep medium and information read device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102656634A (en) * | 2009-12-18 | 2012-09-05 | 松下电器产业株式会社 | Optical information recording method, optical information recording device, optical information reproduction method, optical information reproduction device and optical information recording medium |
| CN102656634B (en) * | 2009-12-18 | 2014-12-03 | 松下电器产业株式会社 | Optical information recording method, optical information recording device, optical information reproduction method, optical information reproduction device and optical information recording medium |
| CN107256372A (en) * | 2013-12-03 | 2017-10-17 | 万代股份有限公司 | Information keep medium and information read device |
| CN107256372B (en) * | 2013-12-03 | 2020-03-31 | 万代股份有限公司 | Information holding medium and information reading apparatus |
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