WO2008068934A1 - 光ディスク装置 - Google Patents
光ディスク装置 Download PDFInfo
- Publication number
- WO2008068934A1 WO2008068934A1 PCT/JP2007/067138 JP2007067138W WO2008068934A1 WO 2008068934 A1 WO2008068934 A1 WO 2008068934A1 JP 2007067138 W JP2007067138 W JP 2007067138W WO 2008068934 A1 WO2008068934 A1 WO 2008068934A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- focus
- temperature
- focus pull
- optical disc
- level
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus pull-in only
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
- G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
Definitions
- the present invention relates to an optical disc apparatus that handles optical discs such as CDs and DVDs as recording media.
- the optical pickup force beam-like light is applied to the information recording surface of the optical disc, and focus control is performed to receive the reflected light from the optical disc to read the recorded data. Is going. Further, in order to perform the above-described focus control, a focus search is performed before starting the reading operation. In the focus search, a focus error signal indicating the light receiving state of the optical pickup is generated, a predetermined level of this signal is set as the focus pull-in level, and the objective lens of the optical pickup is set in a direction perpendicular to the recording surface of the optical disc.
- focus pull-in is performed to control the movement and bring the objective lens toward the in-focus point. In this way, the focus pull-in is performed using a fixed focus pull-in level set in advance.
- a focus error signal learning means is provided to learn the maximum value and minimum value of the focus error signal level during the learning period, and focus is performed using the maximum value and minimum value learned by the focus error signal learning means during the pull-in control period.
- pulls in that is, moves the object lens to the focal point (for example, see Patent Document 1).
- the above learning does not take into account the level change of the focus error signal due to temperature changes.
- Patent Document 1 Japanese Patent Laid-Open No. 2000-155953 (pages 4-6, FIGS. 1 and 2)
- the conventional optical disk apparatus is configured as described above, when the focus control is lost due to a disturbance such as scratches or vibration of the optical disk during the reproduction operation or data reading, and when the STOP / PLAY operation is repeated.
- the initial Since the orcus pull-in level is used it is difficult to reliably pull the focus depending on the temperature in the optical disk device.
- the level of the focus error signal changes due to self-heating of the optical disk device and changes in the ambient temperature. Then, there is a problem that it becomes difficult to perform refocus pull-in and focus jump well.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an optical disc apparatus that performs focus pull-in corresponding to the temperature in the apparatus.
- control means calculates the focus pull-in level according to the temperature detected by the temperature detection means, and performs the focus pull-in of the optical pickup using the focus pull-in level.
- the focus pull-in level is calculated according to the temperature detected by the temperature detecting means and the optical pick-up of the optical pickup is performed, the operation accuracy is improved regardless of the temperature in the optical disc apparatus.
- the effect is that the focus can be pulled.
- FIG. 1 is a block diagram showing a configuration of an optical disc device according to Embodiment 1 of the present invention.
- FIG. 2 is a flowchart showing an operation of the optical disc device according to the first embodiment.
- FIG. 3 is an explanatory diagram showing an operation of the optical disc device according to the first embodiment.
- FIG. 4 is a flowchart showing the operation of the optical disc device according to Embodiment 2 of the present invention.
- FIG. 1 is a block diagram showing a configuration of an optical disc apparatus according to Embodiment 1 of the present invention.
- This figure shows a schematic configuration of a DVD / CD playback apparatus as an example of an optical disk apparatus.
- the optical disk A of CD or DVD is held by a structure made up of a spindle and a mounting member (not shown) when mounted on the optical disk apparatus, and is Is placed in the optical disk drive so as to be rotated by the data!
- an optical pickup 2 including a focus actuator 3a and a tracking actuator 3b is disposed.
- the optical pickup 2 is provided so as to slide in the radial direction of the optical disc A by driving the sled motor 5.
- the optical pickup 2 is connected so as to output a digital signal such as data read from the optical disc A to the RF amplifier 6.
- the optical pickup 2 includes a light beam irradiating unit (not shown) such as a laser diode, a light receiving unit that receives reflected light reflected by the recording surface of the optical disc A, a laser diode force, the beam light, and the above reflected light.
- a light beam irradiating unit such as a laser diode
- a light receiving unit that receives reflected light reflected by the recording surface of the optical disc A
- a laser diode force the beam light
- the above reflected light reflected light.
- An objective lens that shines light is provided!
- the force actuator 3a moves the objective lens in the direction perpendicular to the recording surface of the optical disc A
- the tracking actuator 3b moves the objective lens in the horizontal direction relative to the recording surface of the optical disc A. It is configured to move onto a track formed on the disk recording surface.
- the RF amplifier 6 is provided with a focus error signal generation unit (not shown) that generates a focus error signal indicating the light receiving state of the optical pickup 2.
- the focus error signal generation unit is not limited to the configuration included in the RF amplifier 6.
- the servo controller 7 is connected so as to input a focus error signal from the RF amplifier 6 and control the operations of the spindle motor 1, the optical pickup 2 and the thread motor 5.
- the CPU 8 receives the control signal output from the servo control unit 7 and the output signal of the temperature detection unit 9 and is connected to control the operations of the RF amplifier 6 and the servo control unit 7.
- the temperature detector 9 is installed inside the optical disc device so as to detect the temperature inside the optical disc device.
- the signal processing unit 10 is connected to input the output signal of the RF amplifier 6 and output the processed signal to the D / A converter 11 and the MPEG decoder 12.
- the D / A converter 11 is connected and configured to output the audio signal generated by the D / A conversion to the outside of the optical disc apparatus.
- the MPEG decoder 12 is connected to output the decoded signal to the D / A converter 13.
- the D / A converter 13 is connected and configured to output the audio signal and the video signal generated by the D / A conversion to the outside of the optical disc apparatus.
- FIG. 2 is a flowchart showing the operation of the optical disc apparatus according to the first embodiment.
- This figure shows the control performed by the CPU 8 for each part.
- the user operates an operation means not shown in FIG. 1 to reproduce the optical disc A or read the recorded data.
- a predetermined control signal for instructing data reading from the optical disc A is input to the CPU 8.
- the CPU 8 generates a PLAY command so as to read data recorded on the optical disc A, and issues it to the RF amplifier 6 and the servo control unit 7 (step ST101).
- a focus search is first performed.
- the sled motor 5 is driven to move the optical pickup 2 to a predetermined position, and focus is performed at this position. Perform a search.
- the servo control unit 7 drives the spindle motor 1, the optical pickup 2, and the sled motor 5 to scan the recording surface of the optical disc A, that is, focus. It is in a state to perform a search.
- the sled motor 5 is driven to move the optical pick-up 2 to a predetermined position below the optical disc A in the optical disc apparatus.
- CPU 8 receives a temperature detection signal from temperature detection unit 9 when performing a focus search, takes in the internal temperature of the optical disk device (step ST102), and the temperature inside the optical disk device indicated by the temperature detection signal, for example, an optical pickup 2. Recognize the ambient temperature of each device used for the light receiving operation. The focus pull-in level is calculated / set according to this temperature (step ST103).
- the CPU 8 inputs the temperature detection signal of the temperature detection unit 9 when performing the focus search, and also drives the focus actuator 3a via the servo control unit 7 to place the objective lens on the recording surface of the optical disc A. Is moved in the vertical direction. In other words, the objective lens is moved in the movable range upward and downward in FIG. RF amplifier 6 focus error signal generation
- the generating unit generates a focus error signal indicating the light receiving state from the output signal of the light receiving unit of the optical pickup 2 and outputs the focus error signal to the CPU 8 via the servo control unit 7, for example.
- the CPU 8 calculates the focus pull-in level from the focus error signal when moving the objective lens in the vertical direction as described above.
- the focus pull-in level is calculated using the following formula: FEmax X O when the force peak error signal level peak value when the objective lens is moved as described above, for example, the maximum value is detected and this maximum value is defined as FEmax.
- FEmax X O when the force peak error signal level peak value when the objective lens is moved as described above, for example, the maximum value is detected and this maximum value is defined as FEmax.
- t is a temperature coefficient for correcting the temperature of the focus pull-in level, and has a predetermined value corresponding to the temperature detection signal value output from the temperature detection unit 9.
- the temperature coefficient t is stored in advance in, for example, a non-volatile storage unit provided in the CPU 8, and a table in which each value of the temperature coefficient t is associated with each value of the temperature detection signal, that is, each temperature. Configured and stored in the above storage unit!
- the CPU 8 obtains the temperature coefficient t corresponding to the current temperature in the optical disk apparatus from the above table and calculates the focus pull-in level. That is, the CPU 8 performs calculation by changing the temperature coefficient t according to the temperature detection signal value input from the temperature detection unit 9 and sets a focus pull-in level adapted to the temperature in the optical disc apparatus.
- CPU 8 controls servo control unit 7 to perform focus pull-in using the focus pull-in level set as described above (step ST104). Focus pull-in using the force pull-in level that has been set is neglected in the same manner as conventional optical disk devices.
- FIG. 3 is an explanatory diagram showing the operation of the optical disk device according to the first embodiment.
- the level of the focus error signal changes to draw an S-shaped waveform as shown in Fig. 3.
- the peak values of the maximum peak and the minimum peak of the S-shaped waveform shown in FIG. 3 are detected, and the focus pull-in level is calculated and obtained using this peak value as the aforementioned FEmax.
- the zero level that is, the in-focus point that exists between the two focus pull-in levels is detected.
- the CPU 8 controls the servo controller 7 while monitoring the level of the focus error signal, operates the focus actuator 3a, and moves the objective lens.
- the monitored phone When the level of the single error signal reaches the focus pull-in level calculated / set as described above, the servo controller 7 is controlled to adjust the operation of the focus actuator 3a, and the focus error signal is The movement of the objective lens is controlled so that it is placed at the zero level, that is, at the focal point.
- the CPU 8 moves the objective lens as described above to perform focus pull-in, and when the objective lens is placed at a focal point corresponding to the set focus pull-in level, the light-receiving state of the light-receiving unit of the optical pickup 2 Is detected, for example, the output signal level of the optical pickup 2 or the level of the focus error signal, and it is determined whether or not the focus has been satisfactorily performed (step ST105).
- the process returns to step ST102, the current internal temperature is detected, and the subsequent processes are performed as described above, and the focus pull-in is retried.
- step ST105 When the CPU 8 determines that the focus has been satisfactorily performed in the process of step ST105, the CPU 8 ends the focus pull-in control and shifts to the focus control.
- Servo control 7 is controlled as focus control, and the focus control loop is closed so as to keep the objective lens in focus by operating the focus actuator 3a appropriately.
- the CPU 8 controls the operation of the tracking actuator 3b, the thread motor 5 and the spindle motor 1 through the servo control unit 7, and operates so that the optical pickup 2 sequentially reads the recording data of the optical disc A.
- the optical pickup 2 outputs the read data signal to the RF amplifier 6.
- the RF amplifier 6 amplifies the level of the input data signal and outputs it to the signal processing unit 10.
- the signal processing unit 10 identifies the type and format of the input data, and when it is digital data representing an audio signal, outputs it to the D / A converter 11 to indicate audio and images, for example, data in accordance with the MPE G standard. If it is, output to the MPEG decoder 12.
- the D / A converter 11 converts the input digital data audio signal into an analog audio signal and outputs the analog audio signal to the outside of the optical disc apparatus.
- the MPEG decoder 12 decodes the input data according to the MPEG standard! /, Digital data video signal and audio A signal is generated and output to the D / A converter 13.
- the D / A converter 13 converts the input digital data video signal and audio signal into analog video signals and audio signals and outputs them to the outside of the optical disk apparatus.
- the temperature detection unit 9 that detects the temperature in the optical disk device is provided, and the CPU 8 has the temperature coefficient t associated with the temperature in the device detected by the temperature detection unit 9. Since the focus pull-in level is calculated using the focus pull-in level, the focus pull-in level is used to perform the focus pull-in. Even when the error signal level changes, the optimum focus pull-in level can be set, and the focus pull-in can be performed reliably regardless of the temperature in the optical disk device, and the operation accuracy is improved. There is an effect that can be.
- the optimum focus pull-in level can be set even when the focus error signal level changes due to variations in the light receiving sensitivity of the optical elements that form the light receiving section of the optical pickup 2 and variations in the reflectance of the optical disc A. There is an effect that it is possible to improve the operation accuracy by surely pulling the focus.
- the optical disc device according to the second embodiment is configured in the same manner as that shown in FIG.
- a duplicate description of the same configuration as that of the optical disc apparatus according to the first embodiment is omitted.
- Each part of the optical disk apparatus according to the second embodiment will be described using the same reference numerals for the same or corresponding parts as those shown in FIG.
- FIG. 4 is a flowchart showing the operation of the optical disc apparatus according to Embodiment 2 of the present invention. This figure shows the control of each part by the CPU 8 when the focus pull-in is performed once after the focus pull-in and data reading from the optical disc A are performed.
- the CPU 8 stores the focus pull-in level calculated / set when the focus pull-in is performed and data is read or played back, and the temperature when the focus pull-in level is calculated, for example, a volatile memory provided by itself. Store it in the department.
- step ST201 When performing playback operation again, that is, when repeating STOP / PLAY operation, when performing a focus jump when handling multi-layered optical disc A, due to disturbance such as vibration during data reading or playback operation, or on the optical disc A
- the current optical disk detected by the temperature detector 9 at this time is detected. Capture the internal temperature (step ST202).
- step ST202 the current temperature indicated by the temperature detection signal input from the temperature detection unit 9 is compared with the temperature stored by itself, that is, the initial temperature, to determine whether there is a temperature difference ( Step ST203).
- a temperature correction coefficient tz corresponding to each value of the temperature difference obtained in the process of step ST203 is set in advance, and a table composed of each temperature difference value and each temperature correction coefficient tz is stored in, for example, the CPU8. It is stored in a non-volatile storage unit provided.
- step ST203 If it is determined in step ST203 that there is a temperature difference, the corresponding temperature correction coefficient tz is obtained from the above table according to the temperature difference value.
- the temperature correction coefficient tz is multiplied by the focus pull-in level stored by the CPU 8 itself to perform temperature correction, and the focus pull-in level suitable for the current internal temperature is reset (step ST204). Using the reset focus pull-in level, focus pull-in is performed in the same manner as in step ST104 described in the first embodiment (step ST205).
- step ST203 When it is determined in step ST203 that there is no temperature difference, focus pull-in is performed using the focus pull-in level stored in the CPU 8 (step ST205).
- step ST205 focus pull-in is performed by performing the same processing operation as the process of step ST104 of FIG. 2 described in the first embodiment.
- step ST206 a processing operation similar to that in step ST105 in FIG. 2 is performed to determine whether or not focus pull-in has been performed satisfactorily.
- the process returns to the process of step ST202, the current temperature is taken in, the subsequent processes are performed in the same manner, and the focus pull-in retry is executed. By performing the retry in this way, even if the focus pull-in fails, it is possible to repeat the focus pull until it succeeds.
- step ST206 When it is determined in step ST206 that the focus has been satisfactorily performed, each part is operated in the same manner as in the case where it is determined in step ST105 that the focus has been satisfactorily performed. Then, focus control is performed to read out data from the optical disc A or perform playback operation to output audio signals and video signals.
- the focus pull-in level calculated by the CPU 8 and the temperature when the focus pull-in level is obtained are stored, and the temperature detection unit 9 detects when the focus pull-in is performed again.
- the difference between the current temperature stored and the temperature stored by itself is determined, the stored focus pull-in level is corrected according to the calculated temperature difference, and the corrected focus pull-in level is used to perform the above-mentioned again. Since the focus pull-in is performed, even if the temperature in the disk unit changes during operation and the focus error signal level changes, the influence of the change in the signal level can be absorbed. There is an effect that it is possible to improve the operation accuracy when performing a focus jump or performing a focus jump.
- optical disk device is not limited to an optical disk reproduction-only device.
- the optical disc apparatus calculates the focus pull-in level according to the temperature inside the apparatus, thereby performing the focus pull-in with improved operation accuracy regardless of the temperature inside the apparatus. Therefore, it is suitable for use in an optical disk apparatus that handles optical disks such as CDs and DVDs as a recording medium.
Landscapes
- Optical Recording Or Reproduction (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/443,240 US8036082B2 (en) | 2006-12-08 | 2007-09-03 | Optical disk drive carry out focus pulling-in with improved operation accuracy |
JP2008548176A JP4489136B2 (ja) | 2006-12-08 | 2007-09-03 | 光ディスク装置 |
DE112007002521T DE112007002521T5 (de) | 2006-12-08 | 2007-09-03 | Optisches Plattenlaufwerk |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006332260 | 2006-12-08 | ||
JP2006-332260 | 2006-12-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008068934A1 true WO2008068934A1 (ja) | 2008-06-12 |
Family
ID=39491846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/067138 WO2008068934A1 (ja) | 2006-12-08 | 2007-09-03 | 光ディスク装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8036082B2 (ja) |
JP (1) | JP4489136B2 (ja) |
CN (1) | CN101542617A (ja) |
DE (1) | DE112007002521T5 (ja) |
WO (1) | WO2008068934A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06139584A (ja) * | 1992-10-26 | 1994-05-20 | Olympus Optical Co Ltd | 光学的情報記録再生装置のフォーカス制御装置 |
JPH0916974A (ja) * | 1995-06-28 | 1997-01-17 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000155953A (ja) | 1998-11-18 | 2000-06-06 | Matsushita Electric Ind Co Ltd | 光ディスク装置及びそのフォーカスサーチ方法 |
JP2002109754A (ja) | 2000-09-29 | 2002-04-12 | Sanyo Electric Co Ltd | 光ディスク装置におけるフォーカスサーボ引込み回路 |
JP2002109772A (ja) * | 2000-09-29 | 2002-04-12 | Sanyo Electric Co Ltd | 光ディスク装置 |
JP2004185741A (ja) * | 2002-12-04 | 2004-07-02 | Mitsubishi Electric Corp | 光学式ディスク装置 |
JP2004030920A (ja) | 2003-08-29 | 2004-01-29 | Pioneer Electronic Corp | フォーカスサーボ引き込み装置およびフォーカスサーボ引き込み方法 |
US7590032B2 (en) * | 2003-11-19 | 2009-09-15 | Panasonic Corporation | Recording medium, access apparatus, access method, and program |
TW200539164A (en) * | 2004-05-27 | 2005-12-01 | Lite On It Corp | Feedback control system and method |
US7298677B2 (en) * | 2004-07-28 | 2007-11-20 | Hewlett-Packard Development Company, L.P. | Optical disc drive apparatus and method |
-
2007
- 2007-09-03 CN CNA2007800443525A patent/CN101542617A/zh active Pending
- 2007-09-03 US US12/443,240 patent/US8036082B2/en not_active Expired - Fee Related
- 2007-09-03 JP JP2008548176A patent/JP4489136B2/ja active Active
- 2007-09-03 WO PCT/JP2007/067138 patent/WO2008068934A1/ja active Application Filing
- 2007-09-03 DE DE112007002521T patent/DE112007002521T5/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06139584A (ja) * | 1992-10-26 | 1994-05-20 | Olympus Optical Co Ltd | 光学的情報記録再生装置のフォーカス制御装置 |
JPH0916974A (ja) * | 1995-06-28 | 1997-01-17 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
Also Published As
Publication number | Publication date |
---|---|
JP4489136B2 (ja) | 2010-06-23 |
DE112007002521T5 (de) | 2009-10-15 |
CN101542617A (zh) | 2009-09-23 |
US20100074079A1 (en) | 2010-03-25 |
US8036082B2 (en) | 2011-10-11 |
JPWO2008068934A1 (ja) | 2010-03-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5859824A (en) | Digital disk player | |
EP0856839A1 (en) | Apparatus for playing back optical recording medium | |
JPH10134498A (ja) | ディスク種類判別方法及びこれを適用したdvdシステム | |
JP4489136B2 (ja) | 光ディスク装置 | |
US20050249060A1 (en) | Optical disk reading apparatus | |
US20060193223A1 (en) | Method for compensating writing power in optical disc device | |
JP3558219B2 (ja) | 光ディスクのチルト制御装置 | |
EP2202736A1 (en) | Cascaded control of a pick-up head for multi-layer optical data storage | |
JP2007207294A (ja) | 光ディスク装置、フォーカスオフセット調整方法 | |
JPH11296962A (ja) | 光ディスク判別装置 | |
JPH09320178A (ja) | デジタルディスクプレーヤのディスク識別方法 | |
JP2007102951A (ja) | ディスク装置 | |
JP4045597B2 (ja) | ディスク装置及びその制御方法 | |
JPH09320068A (ja) | デジタルディスクプレーヤのサーボゲイン制御方法 | |
KR100718432B1 (ko) | 광디스크 기록 및 재생 시스템의 포커스 서보 제어 방법 | |
JP4260340B2 (ja) | ディスク装置 | |
JP5169847B2 (ja) | 光ディスク駆動装置及びフォーカスサーチ制御方法 | |
KR100774617B1 (ko) | 광디스크장치의 포커스 제어방법 | |
KR100513336B1 (ko) | 광픽업의 초기위치 제어방법 | |
JP4902777B2 (ja) | ドライブ装置、そのドライブ装置の制御方法 | |
JP4187012B2 (ja) | 光ディスク装置 | |
JPH09231676A (ja) | 光学ディスク再生装置 | |
JP2007334981A (ja) | 光ディスク装置 | |
JP2004272988A (ja) | ディスク記録装置 | |
JP2000242932A (ja) | 光ディスク装置に適用される識別調整方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200780044352.5 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07806611 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008548176 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12443240 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1120070025212 Country of ref document: DE |
|
RET | De translation (de og part 6b) |
Ref document number: 112007002521 Country of ref document: DE Date of ref document: 20091015 Kind code of ref document: P |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 07806611 Country of ref document: EP Kind code of ref document: A1 |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8607 |