WO2006001228A1 - 電気音響変換器及びこれを用いた電子機器 - Google Patents
電気音響変換器及びこれを用いた電子機器 Download PDFInfo
- Publication number
- WO2006001228A1 WO2006001228A1 PCT/JP2005/011119 JP2005011119W WO2006001228A1 WO 2006001228 A1 WO2006001228 A1 WO 2006001228A1 JP 2005011119 W JP2005011119 W JP 2005011119W WO 2006001228 A1 WO2006001228 A1 WO 2006001228A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- terminal
- stopper
- magnetic circuit
- circuit member
- electronic device
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
Definitions
- the present invention relates to an electroacoustic transducer used for various acoustic devices and information communication devices, and an electronic device such as a mobile phone and a game device equipped with the electroacoustic transducer.
- FIGS. 8 to 10 are cross-sectional views of conventional electroacoustic variations, which are used as speakers and receivers mounted on electronic devices such as mobile phones.
- FIG. 11 and FIG. 12 are cross-sectional views showing a state in which this electroacoustic change is mounted on an electronic device such as a mobile phone.
- a magnetized magnet 301 is sandwiched between an upper plate 302 and a yoke 303 to constitute an inner magnet type magnetic circuit member 304. While the yoke 303 of the magnetic circuit member 304 is in contact with the magnetic circuit member 304, the magnetic circuit member 304 is press-fitted into a resin frame 306 molded with a part of the terminal 310 and bonded and bonded.
- the diaphragm 307 is bonded to the peripheral edge of the frame 306.
- a voice coil 308 for driving the diaphragm 3 07 is coupled to the diaphragm 3 07, and the voice coil 308 is coupled so as to fit in the magnetic gap 305.
- the lead wire of the voice coil 308 is soldered to one end of the terminal 310 and joined.
- the terminal 310 is configured so that the terminal 310 does not protrude from the outer shape of the frame 306 by folding the substantially central portion of the terminal 310 in half.
- the other end of the terminal 310 is configured as a power supply terminal to the electronic device to be mounted.
- the terminal 310 is formed by bending a sheet metal plate having electrical conductivity, and using the spring pressure of the metal plate to make contact with the power supply unit on the electronic device side. It is composed. Then, within a range where the bending of the terminal 310 does not exceed the reversible limit value of the metal material, the final end of the sheet-like metal plate of the terminal 310 is bent inward to form the stopper 309! /.
- FIG. 9 and FIG. 10 are cross-sectional views showing the state of the terminal 310, and the terminator shown in FIG. Assuming that the state of Le 310 is at top dead center, Figure 9 shows that terminal 310 has reached bottom dead center. FIG. 10 shows a state in which the stopper 309 is deformed and crushed from the state where the terminal 310 in FIG.
- FIG. 11 and FIG. 12 are cross-sectional views of a state in which the speaker 335 that is the above-described electroacoustic transducer is mounted on an electronic device 380 such as a mobile phone.
- the electronic device 380 includes an exterior case 370 and a display module 360! /.
- FIG. 11 shows a state where the terminal 310 is bent to some extent and an appropriate spring pressure is applied to the power supply unit on the electronic device side.
- Figure 12 shows that the terminal 310 is pushed and deformed by the power supply unit on the electronic device side due to external factors such as the drop impact of the mobile phone, and after reaching the bottom dead center, an excessive force is applied.
- the stopper 309 is deformed and crushed. In this case, the stopper 309 is deformed beyond the reversible limit value of the metal material, and once subjected to an impact, it does not return to its original state even if the applied pressure is lost.
- the conventional speaker 335 and receiver which are this type of electrical sound transformation, generate a spring pressure of the metal terminal of the terminal 310 and are coupled to the power supply unit on the electronic device 380 side by contact.
- the stopper 309 of the terminal 310 is deformed and the spring pressure of the metal terminal of the terminal 310 is reversible. Limit values may be exceeded. Furthermore, if these electronic devices 380 such as mobile phones are accidentally dropped, the stopper 309 of the terminal 310 is crushed by an excessive impact force, exceeding the reversible limit value of the spring pressure of the metal terminal of the terminal 310. May end up. This is because the stopper 309 is also made of the same metal terminal and thus has a spring pressure. However, the stopper 309 also exceeds the reversible limit value of the spring pressure, resulting in permanent deformation.
- the above-mentioned problem is a problem that occurs not only in the type in which the stopper is formed on the terminal, but also in the type in which the stopper is integrally molded with the grease during the injection molding of the grease frame. This type occurs when the grease stopper is destroyed by impact and exceeds the reversible limit value of the spring pressure of the metal terminal of the terminal.
- the electroacoustic deformation of the present invention includes a frame coupled to a magnetic circuit member, a diaphragm coupled to an outer peripheral portion of the frame, and a diaphragm coupled to the diaphragm, and a part of the diaphragm.
- the voice coil arranged in the magnetic gap of the circuit member and the lead wire of this voice coil are connected, and a sheet metal plate having conductivity is bent and the spring pressure of this metal plate is used.
- the magnetic circuit member is configured so that the terminal configured to come into contact with the power supply unit on the mounted electronic device side and the bending of the metal plate constituting the terminal are controlled within the reversible limit value of the metal material.
- a stopper constituted by a protrusion provided with the same material as the magnetic circuit member.
- the electronic device of the present invention is equipped with an electroacoustic transducer, and the electroacoustic transducer has the above-described configuration. With this configuration, it is possible to provide an excellent electroacoustic transducer capable of preventing a decrease in the spring pressure of the terminal and realizing a stable signal supply to the electroacoustic transducer and an electronic device using the same.
- FIG. 1 is a cross-sectional view of a speaker according to Embodiment 1 of the present invention.
- FIG. 2 is a cross-sectional view showing a state where the speaker terminal shown in FIG. 1 is deformed by an external force.
- FIG. 3 is a perspective view of the speaker shown in FIG.
- FIG. 4 is a cross-sectional view of the speaker in the second embodiment of the present invention.
- FIG. 5 is a cross-sectional view of another speaker according to Embodiment 2 of the present invention.
- FIG. 6 is a cross-sectional view of an essential part of the electronic apparatus according to Embodiment 3 of the present invention.
- FIG. 7 is a cross-sectional view of a principal part showing a state in which a speaker terminal incorporated in the electronic device shown in FIG. 6 is deformed by an external force.
- FIG. 8 is a cross-sectional view of a conventional speaker.
- FIG. 9 is a cross-sectional view showing a state in which the speaker terminal shown in FIG. 8 is deformed by an external force.
- Fig. 10 is a cross-sectional view showing a state in which the terminal shown in Fig. 9 is deformed by an excessive external force.
- FIG. 11 is a cross-sectional view of a main part of a conventional electronic device.
- FIG. 12 is a cross-sectional view of a principal part showing a state where a speaker terminal incorporated in the electronic device shown in FIG. 11 is deformed by an external force.
- a speaker 35 that is an electroacoustic transformation includes a frame 26 coupled to a magnetic circuit member 24, a diaphragm 27 coupled to the outer periphery of the frame 26, and a diaphragm 27 coupled to the diaphragm 27.
- the voice coil 28, a part of which is disposed in the magnetic gap 25 of the magnetic circuit member 24, and the lead wire of the voice coil 28 are connected, and a sheet metal plate having conductivity is bent.
- the terminal 30 configured to make contact with the power supply unit on the mounted electronic device by using the spring pressure of the metal plate and the bending of the metal plate constituting the terminal 30 are reversible of the metal material.
- the magnetic circuit member 24 includes a stopper 29 made of a protrusion made of the same material as that of the magnetic circuit member 24 so as to be controlled within the limit value.
- the stopper 29 increases the pressing size of the speaker 35 when the speaker 35 is attached to the electronic device, or an excessive impact force is applied to the electronic device on which the speaker 35 is mounted.
- a printed wiring board on which an electronic device member, for example, an electronic circuit on the electronic device is mounted hits the stopper 29 and is bent deep enough to exceed the reversible limit value of the metal material constituting the terminal 30. It is a thing that regulates.
- the stopper 29 is reinforced so that the bending of the terminal 30 remains within a range that does not exceed the reversible limit value of the metal material.
- the stopper 29 of the terminal 30 is formed by bending a sheet-like metal plate or formed by resin! / ⁇ ⁇ , weak against pressure deformation and impact force The material strength is strong against the impact force.
- stopper 29 As the material of the stopper 29, protrusions are formed of the same hard metal material as the yoke 23 and the magnetic circuit member 24 of the lower plate. As a result, stopper 29 It can function as a stopper that does not cause deformation or destruction of the stopper 29 itself against deformation of the cylinder 30.
- the stopper 35 can be stopped even if the pressing size of the speaker 35 is set large or the electronic device is accidentally dropped and an excessive impact force is applied to the terminal 30. 29 will not be deformed or crushed. Therefore, the reversible limit value of the spring pressure of the metal terminal of the terminal 30 is not exceeded, and the spring pressure of the terminal 30 is not reduced.
- the terminal 30 can maintain a strong spring pressure at all times, stabilizes the coupling due to contact with the power supply unit of the electronic device on which the speaker 35 is mounted, and may cause an impact to the electronic device. Even when it vibrates, there is no contact failure, so the signal is stabilized without interruption. Therefore, it is possible to improve the reliability of electronic devices such as mobile phones.
- FIGS. 1 to 3 are cross-sectional views of a speaker that is an electroacoustic modification according to Embodiment 1 of the present invention, and are applied to a slim type speaker whose outer shape is rectangular.
- FIG. 1 is a cross-sectional view of the electroacoustic transducer (speaker) of Embodiment 1 of the present invention
- FIG. 2 is a cross-sectional view of the terminal in FIG. 3 is a perspective view of the state of FIG.
- the magnetized magnet 21 is sandwiched between an upper plate 22 and a yoke 23 having a stopper 29 on the back surface to form an inner magnet type magnetic circuit member 24. is doing. While the yoke 23 of the magnetic circuit member 24 is in contact, the magnetic circuit member 24 is press-fitted into a resin frame 26 in which a part of the terminal 30 is molded, and is bonded by bonding.
- a diaphragm 27 is bonded to the peripheral edge of the frame 26.
- a voice coil 28 for driving the diaphragm 27 is coupled to the diaphragm 27, and the voice coil 28 is coupled to fit into the magnetic gear 25.
- the lead wire of the voice coil 28 is soldered to one end of the terminal 30 and joined.
- the terminal 30 is removed from the outer shape of the frame 26 by folding the approximate center of the terminal 30 in half. The other end is configured as a power supply terminal to the electronic device side so as not to protrude from the part.
- a stopper 29 is provided on the back surface portion of the yoke 23 of the magnetic circuit member 24 so that the bending of the metal plate constituting the terminal 30 is regulated within the reversible limit value of the metal material.
- the stopper 29 is made of the same hard metal material as the yoke 23. With this configuration, the stopper 29 can perform its function with respect to the deformation of the terminal 30 without causing the deformation or destruction of the stopper 29 itself.
- the yoke 23 when configured, it may be integrally formed of the same hard metal material as that of the yoke 23. In this way, by simultaneously forming them together, the productivity of the yoke 23 having the stopper 29 can be improved. Further, the stopper 29 may be produced as a separate body and coupled to the yoke 23.
- the shape of the stopper 29 provided on the back surface of the yoke 23 is, as shown in FIG. And a small protrusion is provided at each end of the protrusion on each wall surface. In other words, three stoppers 29 are provided on the back surface of the yoke 23. It should be noted that the shape of the stopper 29 is not limited to this shape as long as it can serve as a stopper.
- the effect of the stopper 29 may cause deformation exceeding the reversible limit value of the metal material or crushing. Will not be lost. Therefore, the irreversible limit value of the spring pressure of the metal terminal of the terminal 30 will not be exceeded, and the spring pressure of the terminal 30 will not decrease. [0035] For this reason, the terminal 30 can maintain a strong spring pressure at all times, and the connection due to the contact with the power feeding part of the electronic device is stable, and when the electronic device is shocked or vibrated. However, since no contact failure occurs, the signal is stabilized without being interrupted. Therefore, the reliability of electronic devices such as mobile phones can be improved.
- the stopper 29 can also be configured by being covered with an insulator.
- the reason for this is that, in normal use, there is no direct contact with the terminal 30, but an excessive force is applied due to a drop impact, etc., even if both of the pair of terminals 30 shown in Fig. 3 are deformed. This is to prevent a short circuit from occurring even when both of them touch the stopper 29.
- an excessive force is applied by a drop impact or the like, so that a short circuit does not occur even when the stopper 29 contacts the electronic circuit of the electronic device.
- the protrusion shape as the stopper 29 is not limited to that shown in FIG. 1, but the magnetic circuit member 24 protrudes from the frame 26 to the back side, specifically, the magnetic circuit member 24 It may be configured by increasing the thickness of the entire back portion or by shifting the relative position of the magnetic circuit member 24 to the frame 26 to the back side.
- FIGS 4 and 5 are cross-sectional views of the speaker according to Embodiment 2 of the present invention. Only the differences between the second embodiment and the first embodiment will be described.
- a magnetized magnet 211 is sandwiched between an upper plate 221 and a lower plate 231 having a stopper 29 on the back surface to form an outer magnet type magnetic circuit member 24. It is composed.
- the bending range of the terminal 30 is restricted by a stopper 29 on the back surface of the lower plate 231 of the outer magnetic type magnetic circuit member 24.
- the stopper 29 is formed integrally with the lower plate 231.
- protrusions on the wall surface are formed at both ends of the rectangular-type lower plate 231 as shown in the yoke 23 of the first embodiment and the intermediate portion thereof. Sarahoko, with a small protrusion on each end of the protrusion on each wall. ing. That is, three stoppers 29 are provided on the back surface of the lower plate 231.
- the shape of the stopper 29 is not limited to this shape, and may be a cylindrical protrusion, that is, a shape that can serve as a stopper, as shown in FIG.
- FIGS. 6 and 7 are cross-sectional views of a main part of a mobile phone that is an electronic device according to Embodiment 3 of the present invention.
- a cellular phone 80 shown in FIGS. 6 and 7 includes the speaker 35 described in the first embodiment or the second embodiment.
- the cellular phone 80 is configured by mounting components, modules, and the like such as the speaker 35, the electronic circuit 40, and the display module 60 such as a liquid crystal in the exterior case 70, thereby constituting a main part of the cellular phone 80. Then, the terminal 30 of the speaker 35 and the electronic circuit 40 of the mobile phone 80 are powered by contact while applying spring pressure to operate the speaker 35! /.
- the terminal 30 can always maintain a strong spring pressure, and the connection by the contact with the power feeding portion of the electronic circuit 40 of the mobile phone 80 is stabilized, and the mobile phone 80 is shocked. Even when it vibrates or vibrates, contact failure does not occur, so the signal can be stabilized without interruption. Therefore, the reliability and quality of electronic devices such as mobile phones can be improved.
- the electroacoustic transformation and electronic device according to the present invention needs to be improved in reliability and quality. Applicable to audiovisual equipment, information communication equipment, game equipment and other electronic equipment
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Telephone Set Structure (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05751577A EP1744587A4 (en) | 2004-06-23 | 2005-06-17 | ELECTRIC ACOUSTIC CONVERTER AND ELECTRONIC DEVICE THEREFOR |
US11/587,412 US20070223743A1 (en) | 2004-06-23 | 2005-06-17 | Electro-Acoustic Converter and Electronic Device Using the Same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-184720 | 2004-06-23 | ||
JP2004184720A JP2006013665A (ja) | 2004-06-23 | 2004-06-23 | 電気音響変換器およびこれを用いた電子機器 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006001228A1 true WO2006001228A1 (ja) | 2006-01-05 |
Family
ID=35780404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/011119 WO2006001228A1 (ja) | 2004-06-23 | 2005-06-17 | 電気音響変換器及びこれを用いた電子機器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070223743A1 (ja) |
EP (1) | EP1744587A4 (ja) |
JP (1) | JP2006013665A (ja) |
CN (1) | CN1951146A (ja) |
WO (1) | WO2006001228A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1863319A2 (en) * | 2006-05-29 | 2007-12-05 | Pioneer Corporation | Speaker |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101400010B (zh) * | 2007-09-29 | 2012-03-21 | 马钧 | 一种新型音频转换器 |
JP6270240B2 (ja) * | 2013-10-30 | 2018-01-31 | 株式会社デンソー | 携帯型無線キー |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH077777A (ja) * | 1993-06-16 | 1995-01-10 | Tadashi Itagaki | 体感振動装置 |
JP2607297Y2 (ja) * | 1993-08-31 | 2001-05-28 | クラリオン株式会社 | スピーカの取付構造 |
JP2003037890A (ja) * | 2001-07-26 | 2003-02-07 | Matsushita Electric Ind Co Ltd | スピーカ |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE255803T1 (de) * | 1999-03-25 | 2003-12-15 | Koninkl Philips Electronics Nv | Gerät mit elektroakustischem wandler in einer pc- platine montiert mit hilfe von halteeinrichtungen |
JP3964583B2 (ja) * | 1999-10-26 | 2007-08-22 | 日本圧着端子製造株式会社 | フレキシブル基板用コネクタ |
JP2001209387A (ja) * | 2000-01-26 | 2001-08-03 | Star Micronics Co Ltd | 電磁音響変換器およびその取付構造 |
JP2001290484A (ja) * | 2000-04-10 | 2001-10-19 | Citizen Electronics Co Ltd | 電磁型発音体 |
JP4630957B2 (ja) * | 2000-06-16 | 2011-02-09 | 並木精密宝石株式会社 | 電磁誘導型アクチュエータ装置並びに携帯用通信機器 |
JP2002354583A (ja) * | 2001-05-23 | 2002-12-06 | Star Micronics Co Ltd | スピーカ |
US6860766B2 (en) * | 2002-03-08 | 2005-03-01 | Cinch Connectors, Inc. | Electrical connector |
-
2004
- 2004-06-23 JP JP2004184720A patent/JP2006013665A/ja active Pending
-
2005
- 2005-06-17 WO PCT/JP2005/011119 patent/WO2006001228A1/ja not_active Application Discontinuation
- 2005-06-17 EP EP05751577A patent/EP1744587A4/en not_active Withdrawn
- 2005-06-17 CN CNA2005800139761A patent/CN1951146A/zh active Pending
- 2005-06-17 US US11/587,412 patent/US20070223743A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH077777A (ja) * | 1993-06-16 | 1995-01-10 | Tadashi Itagaki | 体感振動装置 |
JP2607297Y2 (ja) * | 1993-08-31 | 2001-05-28 | クラリオン株式会社 | スピーカの取付構造 |
JP2003037890A (ja) * | 2001-07-26 | 2003-02-07 | Matsushita Electric Ind Co Ltd | スピーカ |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1863319A2 (en) * | 2006-05-29 | 2007-12-05 | Pioneer Corporation | Speaker |
EP1863319A3 (en) * | 2006-05-29 | 2009-06-03 | Pioneer Corporation | Speaker |
US8009855B2 (en) | 2006-05-29 | 2011-08-30 | Tohoku Pioneer Corporation | Speaker |
Also Published As
Publication number | Publication date |
---|---|
EP1744587A1 (en) | 2007-01-17 |
JP2006013665A (ja) | 2006-01-12 |
EP1744587A4 (en) | 2009-01-21 |
US20070223743A1 (en) | 2007-09-27 |
CN1951146A (zh) | 2007-04-18 |
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