WO2005091674A1 - 多機能型振動アクチュエータ及び携帯端末機器 - Google Patents
多機能型振動アクチュエータ及び携帯端末機器 Download PDFInfo
- Publication number
- WO2005091674A1 WO2005091674A1 PCT/JP2005/004910 JP2005004910W WO2005091674A1 WO 2005091674 A1 WO2005091674 A1 WO 2005091674A1 JP 2005004910 W JP2005004910 W JP 2005004910W WO 2005091674 A1 WO2005091674 A1 WO 2005091674A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- suspension
- vibration
- magnetic circuit
- housing
- diaphragm
- 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
- H04R9/025—Magnetic circuit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/03—Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/07—Suspension between moving magnetic core and housing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Definitions
- the present invention is mounted on a mobile terminal device such as a mobile phone or a small-sized information communication terminal, and is a multi-function vibration actuator that notifies a user of an incoming call by sound or vibration with one device, and a multi-function vibration actuator.
- the present invention relates to a mounted mobile terminal device. Specifically, in the housing, a magnetic circuit portion, a suspension for elastically supporting the magnetic circuit portion with respect to the housing, a diaphragm opposed to the magnetic circuit portion, and a magnetic circuit provided on the diaphragm.
- the present invention relates to a mold vibration actuator.
- a yoke (magnetic yoke) of a magnetic circuit portion is fitted and fixed to a center hole of a suspension, and is provided at equal intervals on an outer edge of the suspension.
- the outer edge of the suspension is fixed to the housing by fitting the plurality of protruding pieces into a notch step provided in the frame of the housing (housing) and bonding the same (see, for example, Patent Document 1). reference).
- a signal current of a voice signal is applied to the voice coil, the diaphragm vibrates to generate a sound such as a ring tone, a melody sound, voice, music, and the like.
- the mechanical vibration system vibrates, and this vibration is transmitted through the housing to the entire portable terminal device equipped with this multifunctional vibration actuator!
- the yoke (lower yoke) of the magnetic circuit portion is fitted into the center hole of the suspension (panel panel) and fixed by laser welding, and the outer edge of the suspension is fitted into the housing (case) and the space fitted therein. Some are sandwiched and fixed between them (see, for example, Patent Document 2).
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-191092 (page 2, FIG. 8-11)
- Patent Document 2 Japanese Patent Application Laid-Open No. 11 7286 (Pages 3-5, Figure 2, Figure 3)
- the invention of claim 1 and claim 3 of the present invention aims at accurately adjusting the frequency of vibration caused by the suspension during assembly.
- the invention of claim 2 and the invention of claim 3 cited therefor have, in addition to the object of the invention of claim 1, an object to enable high-speed and accurate fixing with a simple adjustment structure. It is what it was.
- the invention according to claim 1 of the present invention prepares a plurality of fixed positions of the magnetic circuit portion and the suspension close to each other, and prepares a plurality of positions at which the fixed positions are to be fixed. From this, it was found that by selecting a fixing position corresponding to the characteristics of the suspension to be mounted and the weight of the magnetic circuit portion and fixing the position, this fixing position also changed the length to the vibration center position between the suspension and the housing. It is a feature.
- the invention according to claim 2 is the same as the structure of the invention according to claim 1, wherein the fixed position is a laser welding through hole drilled in the suspension, and the laser irradiation position is changed toward the through hole to change the laser irradiation position. It is characterized by the addition of a welded configuration.
- the invention described in claim 3 is a contract Claims 1 or 2, wherein the multifunctional vibration actuator according to claim 1 or 2 is built in, and one or both of the diaphragm and a mechanical vibration system including a magnetic circuit unit and a suspension are vibrated by receiving a call signal,
- the portable terminal device is characterized in that the vibration of the mechanical vibration system is transmitted to the entire device via the housing, and the vibration of the diaphragm and the mechanical vibration system is stopped by resetting the calling signal.
- the invention according to claim 1 and claim 3 cited therefor prepares a plurality of fixing positions of the magnetic circuit portion and the suspension close to each other, and prepares these fixing positions.
- the fixed position is also the length to the vibration center position between the suspension and the housing.
- the desired frequency was changed to match the desired frequency. Therefore, the frequency of the vibration by the suspension can be accurately adjusted during assembly.
- variations in the precision of the components of the suspension and the magnetic circuit portion that occur for each manufacturing lot are reduced, so that the quality of the finished product can be stabilized and the manufacturing cost can be reduced.
- Claim 2 and the invention of claim 3 cited therefor are based on the effect of the invention of claim 1, and the laser irradiation position is directed toward the laser welding through hole 3e formed in the suspension 3.
- the laser welding it is possible to achieve high-speed and accurate fixing even with a simple adjustment structure. Therefore, high-speed and accurate fixing can be achieved with a simple adjustment structure. As a result, the manufacturing cost can be further reduced.
- a multifunctional vibration actuator A includes a magnetic circuit portion 2 and a suspension 3 for elastically supporting the magnetic circuit portion 2 in a cylindrical housing 1 as shown in FIGS. And a voice coil 5 fixed to the diaphragm 4 and inserted into an annular magnetic gap 2a of the magnetic circuit portion 2.
- the diaphragm 4 vibrates slightly to generate a sound such as a ringtone, a melody sound, a voice, music, or the like.
- a signal current having a vibration frequency of 120 to 160 Hz flows, the magnetic circuit 2 Heavy mechanical vibration system including the suspension and the suspension 3 vibrates greatly
- the housing 1 is a cylindrical housing that houses the magnetic circuit unit 2, and an outer peripheral portion 4a of the diaphragm 4 is fixed to one (upper in the drawing) open end la with an adhesive or the like.
- the other (lower in the drawing) open end lb is covered by a detachable bottom cover 6.
- the annular member 7 is, for example, an O-ring formed of an elastic material such as synthetic rubber, and is opposed to the outer edge 3a of the suspension 3 as shown in FIGS. It is located along the outer periphery of the bottom. Further, it is preferable to prepare a plurality of types of annular members 7 having different sizes in the vertical thickness direction and different sizes in hardness, and to select from them according to the situation.
- a locking means 8 for fitting and locking when approaching each other is provided.
- the side peripheral wall 6a of the bottomed cylindrical cover 6 and the lower peripheral side wall lc of the housing 1 are formed into a structure in which they are fitted to each other.
- a plurality of locking projections 8a and locking recesses 8b are formed as the locking means 8 at equal intervals in the circumferential direction.
- the outer diameter of the lower peripheral side wall lc of the housing 1 and the inner diameter of the side peripheral wall 6a of the cover 6 are substantially equal to each other, and the outer peripheral surface of the lower peripheral side wall lc of the housing 1 is engaged with the projection.
- a portion 8a protrudes, and a locking recess 8b is formed through the inner surface of the side peripheral wall 6a of the cover 6 facing the portion 8a, but the shapes of the fitting structure and the locking means 8 are limited to those illustrated.
- the locking projection 8a and the locking recess 8b may be reversed, or another structure or shape may be used.
- the suspension 3 is a ring-shaped panel panel, and has a center hole 3b at the center thereof for fitting with a magnetic circuit portion 2 described later, and an annular portion surrounding the center hole 3b and abutting on the magnetic circuit portion 2.
- 3c and this An annular arm 3d is formed by connecting the annular portion 3c and the outer edge portion 3a to bend and deform.
- the annular portion 3c is integrally fixed to the magnetic circuit portion 2 by laser welding, and the outer edge portion 3a is fixed. Is fixed to the other open end lb of the housing 1 so that the magnetic circuit section 2 is elastically supported at a position facing the diaphragm 4.
- a plurality of through holes 3e through which a laser beam for laser welding is passed in advance are provided at a plurality of positions of the annular portion 3c at regular intervals as fixing positions.
- the laser welding position force changes the outer edge portion 3a of the suspension 3 fixed to the other open end lb of the housing 1, that is, the length up to the vibration center position, so that the vibration by the suspension 3 is changed to a desired frequency. Are adjusted with high accuracy.
- the diaphragm 4 is a vibrating plate formed of an elastic material such as a plastic film of polycarbonate, polyetherimide, polyimide, or polyethylene phthalate and formed into a flat circular shape having an appropriate thickness. It is bent along the inner peripheral surface of the housing 1 to bend and form an annular rising portion 4b.
- annular mounting portion 4c is formed at a position substantially in the middle of the radius of the diaphragm 4, and the end surface of the voice coil 5 is fixed to the back surface thereof with an adhesive or the like to form an annular magnetic gap of the magnetic circuit portion 2. It is inserted into the portion 2a, and concentric curved portions 4d and 4e protruding outward are formed on the center side and the outer peripheral side with the coil attachment portion 4c interposed therebetween, respectively.
- the voice coil 5 is wound in a cylindrical shape, and its lead wire 5a is attached to the back surface of the diaphragm 4 with an adhesive or the like so as not to adversely affect the vibration, as shown in FIG.
- the end of the wire 5a is led out toward a terminal block Id provided outside the housing 1, and is electrically connected to a terminal fitting le provided on the terminal block Id by soldering or bonding.
- the magnetic circuit section 2 includes a yoke 9, a disk-shaped magnet 10, and a disk-shaped pole. It is constructed by overlapping the piece 11 on the concentric axis.
- the yoke 9 is made of a magnetic material and is formed in a cylindrical shape with a bottom, and its outer peripheral surface 9a is separated from the inner peripheral surface of the housing 1 by a minute gap (for example, 0.05-0.2 mm). And an abutting surface 9b facing the annular step If formed on the inner peripheral surface of the housing 1 so that they abut when the magnetic circuit 2 vibrates. 2. The movement by the external impact is restricted.
- a projection 9c is provided on the lower surface of the yoke 9 so as to fit with the center hole 3b of the suspension 3, and a recess 9d formed around the projection 9c is The annular portion 3c abuts and is integrally fixed by laser welding or the like. If necessary, a counterbore (not shown) having substantially the same diameter as the diameter of the magnet 10 may be provided in the center of the bottom in order to position the magnet 10.
- the pole piece 11 is formed in a disk shape having a diameter substantially the same as or larger than the diameter of the magnet 10, and the bottom of the pole piece 11 is positioned on the bottom surface as necessary to position the magnet 10.
- a counterbore (not shown) having substantially the same diameter as the diameter of 10 may be recessed. It is more preferable if the magnet 10 is sandwiched between the magnet 10 and the counterbore of the yoke 9 to restrict the radial displacement of the magnet 10.
- the diaphragm 4 and the voice coil 5 are integrally attached to the housing 1, and the suspension 3 is integrated with the entire magnetic circuit 2 by laser welding to the yoke 9 of the magnetic circuit 2, and the bottom is provided.
- the annular member 7 is placed in the cylindrical cover 6 and placed along the side peripheral wall 6a.
- the characteristics of the suspension 3 to be mounted and the weight of the magnetic circuit section 2 are checked at least for each production lot.
- the laser welding position force changes the length to the vibration center position between the suspension 3 and the housing.
- the outer edge 3a of the suspension 3 integrated with the magnetic circuit 2 is stacked on the annular member 7, and the housing 1 on which the diaphragm 4 and the voice coil 5 are mounted is lowered. Then, the outer edge 3a of the suspension 3 and the annular member 7 are sandwiched between the other open end lb and the cover 6.
- the lower peripheral side wall lc of the housing 1 and the side peripheral wall 6a of the cover 6 are fitted close to each other, and at the same time, the locking convex portion 6a and the locking concave portion 6b of the locking means 8 provided on both of them.
- the housing 1, the magnetic circuit 2, the suspension 3, the diaphragm 4, the voice coil 5, the cover 6, and the ring member 7, all of which are integrated, are integrally assembled and assembled. Complete.
- the housing 1 and the suspension 3 can be fixed without using an adhesive or a fixing means such as molding or welding, and the annular member 7 is compressed and deformed even when an external force of the housing 1 and the housing 1 gives an impact.
- the shock is absorbed.
- the housing 1 and the suspension 3 can be fixed without using an adhesive or a fixing means such as molding or welding, and the annular member 7 is compressed and deformed even when an external force of the housing 1 and the housing 1 gives an impact.
- the shock is absorbed.
- the pressure contact force of the suspension 3 against the outer edge 3a is changed, whereby the resonance frequency can be adjusted.
- the magnetic force is applied to the case where the magnetic circuit portion 2 is also supported by the suspension 3 in a downward force.
- the present invention is not limited to this.
- the magnetic circuit portion 2 is suspended by the upper force suspension 3. Even if the mounting direction of the magnetic circuit unit 2 and the suspension 3 is changed, for example, by supporting them, the above-described effects can be obtained.
- the structures and shapes of the housing 1, the magnetic circuit portion 2, the suspension 3, the diaphragm 4, the voice coil 5, the cover 6, and the annular member 7 described in the above-described embodiment are not limited to those shown in the drawings, and the functions and functions described above are not included. Other structures and shapes may be used as long as they have similar functions.
- FIG. 1 is a longitudinal sectional front view of a multifunctional vibration actuator showing one embodiment of the present invention.
- FIG. 2 is a reduced plan view of the same.
- FIG. 3 is a longitudinal sectional front view showing a state of being disassembled according to an assembling procedure.
- FIG. 4 is a reduced bottom view showing a state where a suspension is fixed to a magnetic circuit portion.
- FIG. 5 is an exploded perspective view. Explanation of reference numerals
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/592,958 US7528509B2 (en) | 2004-03-22 | 2005-03-18 | Multifunction-type vibration actuator and mobile terminal device |
DE602005021213T DE602005021213D1 (de) | 2004-03-22 | 2005-03-18 | Multifunktions-vibrations-stellglied und tragbares endgerät |
EP05721097A EP1742504B1 (en) | 2004-03-22 | 2005-03-18 | Multifunction vibration actuator and portable terminal device |
CN2005800091885A CN1934901B (zh) | 2004-03-22 | 2005-03-18 | 多功能型振动促动器及便携式终端设备 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-082330 | 2004-03-22 | ||
JP2004082330A JP4475993B2 (ja) | 2004-03-22 | 2004-03-22 | 多機能型振動アクチュエータ及び携帯端末機器 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005091674A1 true WO2005091674A1 (ja) | 2005-09-29 |
Family
ID=34994093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/004910 WO2005091674A1 (ja) | 2004-03-22 | 2005-03-18 | 多機能型振動アクチュエータ及び携帯端末機器 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7528509B2 (ja) |
EP (1) | EP1742504B1 (ja) |
JP (1) | JP4475993B2 (ja) |
KR (1) | KR100852033B1 (ja) |
CN (1) | CN1934901B (ja) |
DE (1) | DE602005021213D1 (ja) |
TW (1) | TW200533057A (ja) |
WO (1) | WO2005091674A1 (ja) |
Cited By (2)
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WO2007042032A2 (en) * | 2005-10-07 | 2007-04-19 | Tymphany Denmark A/S | Electroacoustic transducer |
JP2010109795A (ja) * | 2008-10-31 | 2010-05-13 | Tetsuo Watanabe | 多機能型振動発生装置 |
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CN1992996B (zh) * | 2005-12-30 | 2012-02-29 | 丁轶 | 扬声器振膜的分体式支承结构 |
KR100675041B1 (ko) | 2006-02-02 | 2007-01-29 | 삼성전기주식회사 | 엑츄에이터의 판스프링 강성 조정 방법 |
KR101135396B1 (ko) | 2006-07-03 | 2012-04-17 | 아이필유(주) | 다기능 초소형 스피커 |
US8035906B2 (en) * | 2006-12-25 | 2011-10-11 | Nikon Corporation | Vibration actuator, lens barrel and camera |
KR100902120B1 (ko) * | 2008-10-15 | 2009-06-09 | 주식회사 비에스이 | 다기능 스피커 |
WO2011013462A1 (ja) * | 2009-07-29 | 2011-02-03 | 三洋電機株式会社 | 振動機能付電気音響変換器 |
EP2355544A1 (en) * | 2009-12-21 | 2011-08-10 | Nxp B.V. | Suspension member for a vibration actuator |
KR101206560B1 (ko) * | 2010-01-05 | 2012-11-29 | 엘지이노텍 주식회사 | 보이스 코일 모터 |
KR101046003B1 (ko) | 2010-11-17 | 2011-07-04 | 삼성전기주식회사 | 선형 진동자 |
CN201967124U (zh) * | 2011-01-07 | 2011-09-07 | 瑞声光电科技(常州)有限公司 | 电磁扬声器 |
JP5781831B2 (ja) * | 2011-05-25 | 2015-09-24 | 日本電産サンキョー株式会社 | 光学装置および光学装置の製造方法 |
KR101339551B1 (ko) * | 2011-09-05 | 2013-12-10 | 삼성전기주식회사 | 선형 진동자 |
KR101288147B1 (ko) * | 2011-11-16 | 2013-07-18 | 삼성전기주식회사 | 햅틱 피드백 디바이스 |
US8890375B2 (en) * | 2012-07-05 | 2014-11-18 | Aac Acoustic Technologies (Shenzhen) Co., Ltd. | Multi-function vibrating device |
US9628902B2 (en) * | 2015-09-22 | 2017-04-18 | Meiloon Industrial Co., Ltd. | Passive radiator structure |
EP3541092B1 (en) | 2015-09-30 | 2021-08-11 | Apple Inc. | Earbud case with charging system |
JP2019221046A (ja) * | 2018-06-19 | 2019-12-26 | 日本電産コパル株式会社 | 振動アクチュエータ |
US10531202B1 (en) * | 2018-08-13 | 2020-01-07 | Google Llc | Reduced thickness actuator |
JP2021132395A (ja) * | 2018-08-13 | 2021-09-09 | グーグル エルエルシーGoogle LLC | 薄型化されたアクチュエータ |
US11172101B1 (en) | 2018-09-20 | 2021-11-09 | Apple Inc. | Multifunction accessory case |
US11240579B2 (en) * | 2020-05-08 | 2022-02-01 | Level 42 Ai | Sensor systems and methods for characterizing health conditions |
US11573599B2 (en) * | 2020-06-11 | 2023-02-07 | Apple Inc. | Electrical connectors for electronic devices |
EP4208081A4 (en) * | 2020-09-04 | 2024-08-21 | Level 42 Ai Inc | CONTACTLESS SENSOR SYSTEMS AND METHODS |
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JP2003143676A (ja) * | 2001-10-30 | 2003-05-16 | Citizen Electronics Co Ltd | スピーカーおよびその製造方法 |
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- 2005-02-05 TW TW094103969A patent/TW200533057A/zh not_active IP Right Cessation
- 2005-03-18 CN CN2005800091885A patent/CN1934901B/zh not_active Expired - Fee Related
- 2005-03-18 KR KR1020067018674A patent/KR100852033B1/ko not_active IP Right Cessation
- 2005-03-18 WO PCT/JP2005/004910 patent/WO2005091674A1/ja active Application Filing
- 2005-03-18 EP EP05721097A patent/EP1742504B1/en not_active Not-in-force
- 2005-03-18 DE DE602005021213T patent/DE602005021213D1/de active Active
- 2005-03-18 US US10/592,958 patent/US7528509B2/en not_active Expired - Fee Related
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WO2003057375A1 (en) * | 2001-12-28 | 2003-07-17 | Namiki Seimitsu Houseki Kabushiki Kaisha | Multi-functional vibrating actuator |
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Non-Patent Citations (1)
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007042032A2 (en) * | 2005-10-07 | 2007-04-19 | Tymphany Denmark A/S | Electroacoustic transducer |
WO2007042032A3 (en) * | 2005-10-07 | 2007-06-07 | Tymphany Denmark As | Electroacoustic transducer |
JP2010109795A (ja) * | 2008-10-31 | 2010-05-13 | Tetsuo Watanabe | 多機能型振動発生装置 |
JP4680291B2 (ja) * | 2008-10-31 | 2011-05-11 | 哲郎 渡邊 | 多機能型振動発生装置 |
Also Published As
Publication number | Publication date |
---|---|
DE602005021213D1 (de) | 2010-06-24 |
US7528509B2 (en) | 2009-05-05 |
TWI347081B (ja) | 2011-08-11 |
JP4475993B2 (ja) | 2010-06-09 |
TW200533057A (en) | 2005-10-01 |
JP2005269497A (ja) | 2005-09-29 |
KR20060123622A (ko) | 2006-12-01 |
KR100852033B1 (ko) | 2008-08-13 |
CN1934901B (zh) | 2012-08-08 |
US20070194633A1 (en) | 2007-08-23 |
EP1742504A1 (en) | 2007-01-10 |
EP1742504B1 (en) | 2010-05-12 |
CN1934901A (zh) | 2007-03-21 |
EP1742504A4 (en) | 2008-05-21 |
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