EP0956736B2 - Elektrodynamischer inertial-schwingungserreger - Google Patents

Elektrodynamischer inertial-schwingungserreger Download PDF

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Publication number
EP0956736B2
EP0956736B2 EP98902117A EP98902117A EP0956736B2 EP 0956736 B2 EP0956736 B2 EP 0956736B2 EP 98902117 A EP98902117 A EP 98902117A EP 98902117 A EP98902117 A EP 98902117A EP 0956736 B2 EP0956736 B2 EP 0956736B2
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EP
European Patent Office
Prior art keywords
vibration exciter
coupling member
carrier
inertial vibration
exciter according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98902117A
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English (en)
French (fr)
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EP0956736A2 (de
EP0956736B1 (de
Inventor
Henry Azima
Martin Roberts
Edward Jarvis
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NVF Tech Ltd
Original Assignee
New Transducers Ltd
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Publication date
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Application filed by New Transducers Ltd filed Critical New Transducers Ltd
Priority to DE69831217T priority Critical patent/DE69831217T3/de
Publication of EP0956736A2 publication Critical patent/EP0956736A2/de
Application granted granted Critical
Publication of EP0956736B1 publication Critical patent/EP0956736B1/de
Publication of EP0956736B2 publication Critical patent/EP0956736B2/de
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/066—Loudspeakers using the principle of inertia
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones

Definitions

  • the invention relates to an electro-dynamic exciter e.g. for use in activating a resonant panel-form radiator loudspeaker of the kind described in co-pending International patent application published under WO97/09842 dated 2 September 1996 .
  • the present invention is an electro-dynamic inertial vibration exciter, e.g. of the general kind described in International patent application published under WO97/09859 dated 2 September 1996 which describes an inertial vibration exciter comprising a motor coil assembly having a coil rigidly fixed to a tubular coil former, a magnet assembly disposed concentrically with respect to the motor coil assembly and forming an inertial mass, and resilient means supporting the magnet assembly for axial movement relative to the motor coil assembly, and wherein the tubular member is adapted to be rigidly mounted directly to a member to be vibrated, e.g. a resonant panel loudspeaker, by adhesive means.
  • Another electro-dynamic inertial vibration exciter is known from US patent US 3 801 943 .
  • Japanese utility model JP 49-70941 describes an electro-dynamic exciter comprising an annular damper having long holes in the circumferential direction.
  • the damper also comprise a mounting holes for fixing the damper to a base plate on which a voice coil is mounted.
  • the present invention relates to the efficient construction of exciters and to manufacturing techniques for producing such exciters.
  • the coupling member and the magnet assembly are adapted to interfit one with the other, and means may be provided on the coupling member and on the magnet assembly for fixing the coupling member and magnet assembly together.
  • the fixing means may comprise latch means.
  • the carrier and the suspension member may be integral.
  • the coupling member and the suspension member may be integral.
  • the suspension may be resilient.
  • the suspension may be formed as a diaphragm. Alternatively the suspension may comprise a set of resilient arms.
  • the coupling member and the carrier may be annular and the arms may be connected between the coupling member and the carrier to extend circumferentially.
  • the carrier may have a face adapted for contact with the resonant member and arranged to be fixed thereon, e.g. by adhesive means or by fastening devices.
  • the carrier may be formed integrally with a flange arranged to be fixed to the resonant member.
  • the flange may be disc-like and arranged to support the exciter in a cavity in the resonant member by an edge portion of the flange.
  • the disc may be arranged to close the cavity.
  • An end of the coil former member may be located and mounted in a recess in the carrier.
  • the coil may be mounted on the outer face of the coil former member.
  • the magnet assembly may comprise opposed generally disc-like pole pieces sandwiching a magnet, the periphery of one of which pole pieces being disposed within and adjacent to the motor coil assembly, and the periphery of the other of which pole pieces being formed with an upstanding flange arranged to lie adjacent to and to surround the motor coil assembly.
  • the flange may be adapted to interfit with the coupling member.
  • a lip may be formed on the flange, which lip is shaped to interfit with the coupling member, and fixing means on the coupling member may be adapted to engage the lip.
  • a dust seal may be arranged to close the annular coil carrier.
  • the means suspending the magnet assembly for axial movement relative to the motor coil assembly may comprise a pair of axially spaced suspension parts or components to facilitate the axial guidance of the voice coil with respect to the motor coil assembly.
  • the suspension parts may be of any desired form, e.g. they may comprise respective sets of resilient arms.
  • the respective outer ends of the resilient arms in each suspension part may be coupled together by posts, the lower ends of which form feet adapted for contact with the resonant member.
  • the inner ends of the arms may carry respective annular coupling members adapted to carry the magnet assembly.
  • the invention is a loudspeaker comprising an inertial vibration exciter as described above.
  • Figures 1 to 4 disclose an electro-dynamic inertial vibration exciter (1) of the general kind described in International patent application WO97/09859 for example for exciting bending wave vibration in a resonant member (2) e.g. a panel-form member of the general kind described in International patent application WO97/09842 , to form a loudspeaker.
  • the exciter (1) comprises a motor coil assembly (3,4) and a magnet assembly (5,6,7) forming an inertial mass adapted to move relative to the motor coil assembly (3,4), the exciter being adapted to be fixed in any convenient fashion to the resonant member (2) to be excited to impart bending wave energy to the resonant member (2) when an electrical signal is applied thereto.
  • the motor coil assembly (3,4) comprises a voice coil (3), e.g. of wire, wound on a tubular coil former (4) which is supported at its lower end (17), as seen in Figure 1 , in an annular groove (18) in an annular coil carrier (9) which forms a foot by which the motor coil assembly is secured e.g. by means of an adhesive or the like, to a face of the resonant panel (2).
  • the coil carrier could be secured to the resonant member (2) by fixing means, e.g. fasteners. Such fasteners may be releasable.
  • a bayonet connector may be provided, one part of which is fixed to the resonant member and the other part of which is formed integrally with the exciter.
  • the coil former (4) may be secured in the groove (18) by means of an adhesive.
  • the motor coil assembly (3,4) is surrounded by an annular coupling member (12) which is connected to the motor coil assembly carrier (9) by a resilient annular suspension diaphragm (11) e.g. of rubber-like material which is formed with a concentric annular corrugation (19) to facilitate axial movement of the coupling member relative to the carrier.
  • the carrier (9) and the coupling member (12) may be of hard plastics and may be co-moulded together with the resilient diaphragm (11) to form an integrated suspension component or assembly.
  • the interior of the annular carrier (9) is closed by a disc (10) e.g. of foamed plastics, to form a dust seal closing the interior of the exciter.
  • the magnet assembly (5,6,7) comprises a disc-like magnet (5) sandwiched between opposed pole pieces (6,7), the one (7) of which is disc-like and is co-extensive with the magnet (5), and the other (6) of which is cup-like and is formed with a downturned flange (8) surrounding the magnet (5) and pole piece (7) to form an annular gap (20) for receiving the voice coil (3).
  • the free end of the flange (8) is formed as an outwardly extending lip (22) which is formed with an annular recess (21) at its outer end to define a socket into which the coupling member (12) can be snugly received in the manner of a spigot and socket joint firmly to hold the magnet assembly and the motor coil assembly together. Snap-action clips (13) on the coupling member (12) engage the lip (22) to prevent disengagement.
  • the coupling member (12) is formed with a pair of terminal flanges (14) carrying electrical terminals (15) (see Figure 3 ) which are electrically connected to the voice coil (3) via coil wires or tails (16), whereby the coil can be connected to a signal source and energised thereby.
  • Figure 5 illustrates a modified form of suspension component or assembly for an exciter as described in Figures 1 to 4 in which the resilient diaphragm (11) of Figure 4 is replaced by a relatively stiff diaphragm (23) of textiles fabric impregnated with a plastics material, e.g. epoxy resin.
  • the diaphragm (23) is formed integrally with the coupling member (12) and the coil carrier (9), e.g. by injection moulding the members (9) and (12) into the diaphragm.
  • Figure 6 illustrates an alternative form of suspension component or assembly for an exciter as described in Figures 1 to 4 in which the coil carrier (9), the coupling member (12) and a resilient suspension (28) between the two are formed integrally by an annular member (24) of springy plastics material by moulding the annular member with circumferential slots (25) extending part-way round the annular member to divide the member into an outer part (26), which forms the coupling member (12), an inner part (27) which forms the coil support (9), the inner and outer parts being separated and connected by a resilient suspension formed by an array of three arms (28) defined by the slots (25), which arms extend circumferentially of the member (24) and the outer ends (29) of which are coupled to the outer part (26) and the inner ends (30) of which arms are coupled to the inner part (27).
  • the suspension operates by flexure of the resilient arms.
  • Figures 7 and 8 disclose an arrangement in which an exciter (1) as described above is embedded in a cavity (31) in a resonant panel-form member (2).
  • the carrier (9) is formed integrally with an outwardly extending disc-like flange (32) by which the exciter is mounted in a cavity surrounding recess (33) in a face (34) of the member (2) and whereby the cavity is closed.
  • Figures 9 to 11 there is disclosed an exciter of the general kind described in Figures 1 to 3 , employing a modified form of the suspension component or assembly of Figure 6 .
  • the suspension component consists of two axially spaced sets of the resilient arms (28), further to enhance the guidance of the magnet assembly (5,6,7) relatively to the motor coil assembly (34).
  • Figure 9 shows the magnet assembly exploded away from the suspension component, although only the pole piece (6) is visible. Also the suspension component is shown partly broken away at its right hand side, in the interests of clarity.
  • the suspension component or assembly comprises a single plastics moulding forming the carrier (9) the coupling member (12) and the respective sets of resilient arms (28).
  • the coupling member (12) comprises upper and lower parts as described more fully below.
  • the suspension component comprises an annular carrier (9) formed with an annular groove (18) for receiving and locating the end (17) of a coil former (4).
  • An array of connecting bars (35) extend outwardly from the carrier and their outer ends connect to feet (36) which are adapted to rest against the resilient member (2) (not shown).
  • the feet (36) support the outer ends (29) of a lower set of the resilient arms (28).
  • the inner ends (30) of the lower set of resilient arms carry a lower annular coupling member (12) having an upstanding flange (37) adapted snugly to receive and support the lower end of the flange (8) of the pole piece (6) of a magnet assembly of the general kind shown in Figures 1 and 2 .
  • the feet (36) support upwardly extending posts (38) which support an upper suspension member consisting of an upper set of resilient arms (28) carrying an upper annular coupling member (12) adapted snugly to embrace the flange (8) of the pole piece (6).
  • the upper suspension member is arranged such that the upper ends of the support posts carry the outer ends of the set of arms (28), the inner ends of the arms carrying the upper annular coupling member.
  • the upper annular coupling member may comprise fasteners (not shown) which engage the pole piece (6) with snap action to prevent accidental disengagement. Alternatively the pole piece and the suspension may be fixed together by adhesive means.
  • the invention thus provides convenient ways of manufacturing inertial vibration exciters, including integrated suspension assemblies formed as plastics mouldings or co-mouldings.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Claims (23)

  1. Elektrodynamischer Inertialvibrationserreger (1) zum Erregen eines Teils (2), der die Fähigkeit besitzt, Eingabevibrationsenergie aufrechtzuerhalten und zu verbreiten und der Folgendes umfasst: eine Motorspulenanordnung (3,4), die eine Spule (3) aufweist, die starr an ein röhrenförmiges Spulenbildnerteil (4) befestigt ist, eine Magnetanordnung (5,6,7), die konzentrisch mit Bezug auf die Motorspulenanordnung angeordnet ist, eine Möglichkeit zum Aufhängen der Magnetanordnung für die axiale Bewegung mit Bezug auf die Motorspulenanordnung, einen Träger (9), der die Motorspulenanordnung (3, 4) stützt und zum Anschließen an das zu erregende Teil (2) geeignet ist und ein Kopplungsteil (12), das zum Zusammenpassen mit der Magnetanordnung (5,6,7) geeignet ist, wobei die Aufhängevorrichtung zwischen den Träger (9) und das Kopplungsteil (12) angeschlossen ist und die Aufhängemöglichkeit einen Satz federnder Arme (28) umfasst, die zwischen das Kopplungsteil (12) und den Träger (9) angeschlossen ist, um sich umfangsmäßig zu erstrecken, dadurch gekennzeichnet, dass der Träger (9), die Aufhängemöglichkeit und das Kopplungsteil (12) integral sind und dass das Kupplungsteil (12) und der Träger (9) ringförmig sind.
  2. Inertialvibrationserreger nach Anspruch 1, dadurch gekennzeichnet, dass eine Staubabdichtung (10) den ringförmigen Träger abschließt.
  3. Inertialvibrationserreger nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine Möglichkeit (13) am Kupplungsteil und an der Magnetanordnung zum aneinander Befestigen des Kopplungsteils und der Magnetanordnung.
  4. Inertialvibrationserreger nach Anspruch 3, wobei die Befestigungsmöglichkeit eine Klinke (13) umfasst.
  5. Elektrodynamischer Inertialvibrationserreger (1) zum Erregen eines Teils (2), der die Fähigkeit besitzt, Eingabevibrationsenergie aufrechtzuerhalten und zu verbreiten und der Folgendes umfasst: eine Motorspulenanordnung (3,4), die eine Spule (3) aufweist, die starr an ein röhrenförmiges Spulenbildnerteil (4) befestigt ist, eine Magnetanordnung (5,6,7), die konzentrisch mit Bezug auf die Motorspulenanordnung angeordnet ist, eine Möglichkeit zum Aufhängen der Magnetanordnung für die axiale Bewegung mit Bezug auf die Motorspulenanordnung, einen Träger (9), der die Motorspulenanordnung (3, 4) stützt und zum Anschließen an das zu erregende Teil (2) geeignet ist und ein Kopplungsteil (12), das zum Zusammenpassen mit der Magnetanordnung (5,6,7) geeignet ist, wobei die Aufhängevorrichtung zwischen den Träger (9) und das Kopplungsteil (12) angeschlossen und dadurch gekennzeichnet ist, dass die Aufhängemöglichkeit ein axial im Abstand gehaltenes Paar von Aufhängekomponenten umfasst, die eine mit der anderen integral gebildet sind.
  6. Inertialvibrationserreger nach Anspruch 5, dadurch gekennzeichnet, dass das axial im Abstand gehaltene Paar von Aufhängekomponenten integral mit dem Spulenträger (9) und mit einem Kopplungsteil (12) zum Einrasten und Stützen der Magnetanordnung integral geformt sind.
  7. Inertialvibrationserreger nach Anspruch 6, dadurch gekennzeichnet, dass die Aufhängekomponenten jeweilige Sätze federnder Arme umfassen, von denen jeder mit einem entsprechenden Kopplungsteil (12) assoziiert ist.
  8. Inertialvibrationserreger nach Anspruch 5, gekennzeichnet durch eine Möglichkeit (13) am Kopplungsteil und an der Magnetanordnung zum an einander Befestigen des Kopplungsteils und der Magnetanordnung.
  9. Inertialvibrationserreger nach Anspruch 8, wobei die Befestigungsmöglichkeit eine Klinkenvorrichtung (13) umfasst.
  10. Inertialvibrationserreger nach einem der Ansprüche 5 bis 9, dadurch gekennzeichnet, dass die Aufhängung einen Satz federnder Arme umfasst.
  11. Inertialvibrationserreger nach Anspruch 10, dadurch gekennzeichnet, dass das Kopplungsteil (12) und der Träger (9) ringförmig sind und dass die Arme zwischen dem Kopplungsteil (12) und dem Träger (9) angeschlossen sind, um sich umfangsmäßig zu erstrecken.
  12. Inertialvibrationserreger nach Anspruch 11, dadurch gekennzeichnet, dass eine Staubdichtung (10) den ringförmigen Träger abschließt.
  13. Inertialvibrationserreger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Träger (9) direkt mit dem Spulenbildnerteil (4) verbunden ist.
  14. Inertialvibrationserreger nach einem der Ansprüche 5 bis 13, wobei der Träger (9) und die Aufhängemöglichkeit integral sind.
  15. Inertialvibrationserreger nach einem der Ansprüche 5 bis 14, dadurch gekennzeichnet, dass das Kopplungsteil (12) und die Aufhängemöglichkeit integral sind.
  16. Inertialvibrationserreger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Aufhängung federnd ist.
  17. Inertialvibrationserreger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Träger (9) eine Vorderfläche aufweist, die für den Kontakt mit dem Teil (2) geeignet ist.
  18. Inertialvibrationserreger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das axiale Ende (17) des Spulenbildnerteils (4) sich in einer Vertiefung (18) in dem Träger (9) befindet und montiert ist.
  19. Inertialvibrationserreger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Spule (3) auf der Außenfläche des Spulenbildnerteils (4) montiert ist.
  20. Inertialvibrationserreger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Magnetanordnung (5,6,7) entgegengesetzte allgemein scheibenähnliche Polschuhe (6,7), zwischen die ein Magnet (5) eingeschoben ist, umfasst, wobei die Peripherie eines (7) der Polschuhe sich innerhalb der und an der Motorspulenanordnung (3,4) anliegend befindet und die Peripherie des anderen (6) der Polschuhe mit einem nach unten gerichteten Flansch (8) gebildet ist, der so angeordnet ist, dass er an der Motorspuleanordnung (3,4) anliegend ist und sie unter Bildung einer Spulen aufnehmenden Lücke (20) umgibt.
  21. Inertialvibrationserreger nach Anspruch 20, dadurch gekennzeichnet, dass der Flansch (8) geeignet ist, mit dem Kopplungsteil (12) zusammenzupassen.
  22. Inertialvibrationserreger nach Anspruch 21, gekennzeichnet durch eine Lippe (22) an dem Flansch (8), welche Lippe so gestaltet ist, dass sie mit dem Kopplungsteil (12) zusammenpasst, und durch eine Befestigungsmöglichkeit (13) an dem Kopplungsteil und geeignet ist, in die Lippe (22) einzurasten.
  23. Lautsprecher umfassend einen Inertialvibrationserreger nach einem der vorhergehenden Ansprüche.
EP98902117A 1997-01-31 1998-01-30 Elektrodynamischer inertial-schwingungserreger Expired - Lifetime EP0956736B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE69831217T DE69831217T3 (de) 1997-01-31 1998-01-30 Elektrodynamischer inertial-schwingungserreger

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9701983 1997-01-31
GBGB9701983.0A GB9701983D0 (en) 1997-01-31 1997-01-31 Electro-dynamic exciter
PCT/GB1998/000307 WO1998034320A2 (en) 1997-01-31 1998-01-30 Electro-dynamic inertial vibration exciter

Publications (3)

Publication Number Publication Date
EP0956736A2 EP0956736A2 (de) 1999-11-17
EP0956736B1 EP0956736B1 (de) 2005-08-17
EP0956736B2 true EP0956736B2 (de) 2011-09-14

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EP98902117A Expired - Lifetime EP0956736B2 (de) 1997-01-31 1998-01-30 Elektrodynamischer inertial-schwingungserreger

Country Status (31)

Country Link
EP (1) EP0956736B2 (de)
JP (1) JP2001509985A (de)
KR (1) KR20000070079A (de)
CN (1) CN1243653A (de)
AR (1) AR011597A1 (de)
AT (1) ATE302538T1 (de)
AU (1) AU725230B2 (de)
BG (1) BG103576A (de)
BR (1) BR9807534A (de)
CA (1) CA2279602A1 (de)
CO (1) CO4771176A1 (de)
CU (1) CU22711A3 (de)
DE (1) DE69831217T3 (de)
EA (1) EA001014B1 (de)
EE (1) EE9900306A (de)
GB (1) GB9701983D0 (de)
GE (1) GEP20012595B (de)
HU (1) HUP0003000A2 (de)
ID (1) ID19842A (de)
IL (1) IL130750A0 (de)
MX (1) MXPA99007004A (de)
NO (1) NO993719L (de)
NZ (1) NZ336497A (de)
PL (1) PL334851A1 (de)
SK (1) SK102299A3 (de)
TR (1) TR199901805T2 (de)
TW (1) TW374285B (de)
UA (1) UA42881C2 (de)
WO (1) WO1998034320A2 (de)
YU (1) YU35899A (de)
ZA (1) ZA98782B (de)

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EA199900698A1 (ru) 2000-04-24
WO1998034320A2 (en) 1998-08-06
NO993719L (no) 1999-09-29
DE69831217D1 (de) 2005-09-22
ZA98782B (en) 1998-08-17
BG103576A (bg) 2000-03-31
NZ336497A (en) 2000-01-28
CN1243653A (zh) 2000-02-02
EP0956736A2 (de) 1999-11-17
EP0956736B1 (de) 2005-08-17
IL130750A0 (en) 2000-06-01
EA001014B1 (ru) 2000-08-28
YU35899A (sh) 2001-12-26
EE9900306A (et) 2000-02-15
MXPA99007004A (es) 2005-12-12
KR20000070079A (ko) 2000-11-25
WO1998034320A3 (en) 1998-11-19
AU725230B2 (en) 2000-10-12
CA2279602A1 (en) 1998-08-06
AU5874098A (en) 1998-08-25
DE69831217T2 (de) 2006-06-08
HUP0003000A2 (hu) 2001-01-29
TR199901805T2 (xx) 1999-09-21
DE69831217T3 (de) 2012-02-09
CU22711A3 (es) 2001-09-14
PL334851A1 (en) 2000-03-27
BR9807534A (pt) 2000-06-06
ATE302538T1 (de) 2005-09-15
ID19842A (id) 1998-08-06
GEP20012595B (en) 2001-11-26
JP2001509985A (ja) 2001-07-24
AR011597A1 (es) 2000-08-30
GB9701983D0 (en) 1997-03-19
SK102299A3 (en) 2000-08-14
UA42881C2 (uk) 2001-11-15
NO993719D0 (no) 1999-07-30
TW374285B (en) 1999-11-11
CO4771176A1 (es) 1999-04-30

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