DE69030794D1 - Frequenzsynthetisierer für einen Generator zur Erzeugung von Signalen hoher Reinheit sowie dazugehörige Schaltungselemente wie VCO, PLL und Signalgenerator - Google Patents

Frequenzsynthetisierer für einen Generator zur Erzeugung von Signalen hoher Reinheit sowie dazugehörige Schaltungselemente wie VCO, PLL und Signalgenerator

Info

Publication number
DE69030794D1
DE69030794D1 DE69030794T DE69030794T DE69030794D1 DE 69030794 D1 DE69030794 D1 DE 69030794D1 DE 69030794 T DE69030794 T DE 69030794T DE 69030794 T DE69030794 T DE 69030794T DE 69030794 D1 DE69030794 D1 DE 69030794D1
Authority
DE
Germany
Prior art keywords
generator
vco
pll
well
high purity
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 - Fee Related
Application number
DE69030794T
Other languages
English (en)
Other versions
DE69030794T2 (de
Inventor
Anritsu Okihara-Ryou Hir Saeki
Hatsuo Motoyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anritsu Corp
Original Assignee
Anritsu Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP24343489A external-priority patent/JPH03107204A/ja
Priority claimed from JP1246532A external-priority patent/JP2563136B2/ja
Priority claimed from JP2083049A external-priority patent/JP2721927B2/ja
Application filed by Anritsu Corp filed Critical Anritsu Corp
Publication of DE69030794D1 publication Critical patent/DE69030794D1/de
Application granted granted Critical
Publication of DE69030794T2 publication Critical patent/DE69030794T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B19/00Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H03B19/16Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source using uncontrolled rectifying devices, e.g. rectifying diodes or Schottky diodes
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B19/00Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H03B19/16Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source using uncontrolled rectifying devices, e.g. rectifying diodes or Schottky diodes
    • H03B19/20Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source using uncontrolled rectifying devices, e.g. rectifying diodes or Schottky diodes being diodes exhibiting charge storage or enhancement effects
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B21/00Generation of oscillations by combining unmodulated signals of different frequencies
    • H03B21/01Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1203Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
    • H03B5/124Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
    • H03B5/1243Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising voltage variable capacitance diodes
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
    • H03B5/1262Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising switched elements
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
    • H03B5/1293Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator having means for achieving a desired tuning characteristic, e.g. linearising the frequency characteristic across the tuning voltage range
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00Automatic control of frequency or phase; Synchronisation
    • H03L7/06Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08Details of the phase-locked loop
    • H03L7/085Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/093Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00Automatic control of frequency or phase; Synchronisation
    • H03L7/06Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08Details of the phase-locked loop
    • H03L7/10Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/113Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using frequency discriminator
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003Circuit elements of oscillators
    • H03B2200/0034Circuit elements of oscillators including a buffer amplifier
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003Circuit elements of oscillators
    • H03B2200/004Circuit elements of oscillators including a variable capacitance, e.g. a varicap, a varactor or a variable capacitance of a diode or transistor
    • H03B2200/0042Circuit elements of oscillators including a variable capacitance, e.g. a varicap, a varactor or a variable capacitance of a diode or transistor the capacitance diode being in the feedback path
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02Varying the frequency of the oscillations by electronic means
    • H03B2201/0208Varying the frequency of the oscillations by electronic means the means being an element with a variable capacitance, e.g. capacitance diode
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02Varying the frequency of the oscillations by electronic means
    • H03B2201/0216Varying the frequency of the oscillations by electronic means the means being an element with a variable inductance
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/03Varying beside the frequency also another parameter of the oscillator in dependence on the frequency
    • H03B2201/033Varying beside the frequency also another parameter of the oscillator in dependence on the frequency the parameter being the amount of feedback
DE69030794T 1989-08-25 1990-08-24 Frequenzsynthetisierer für einen Generator zur Erzeugung von Signalen hoher Reinheit sowie dazugehörige Schaltungselemente wie VCO, PLL und Signalgenerator Expired - Fee Related DE69030794T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP21726189 1989-08-25
JP24343489A JPH03107204A (ja) 1989-09-21 1989-09-21 信号発生器
JP1246532A JP2563136B2 (ja) 1989-09-25 1989-09-25 電圧制御発振器
JP2083049A JP2721927B2 (ja) 1990-03-30 1990-03-30 Pll回路

Publications (2)

Publication Number Publication Date
DE69030794D1 true DE69030794D1 (de) 1997-07-03
DE69030794T2 DE69030794T2 (de) 1998-01-15

Family

ID=27466786

Family Applications (4)

Application Number Title Priority Date Filing Date
DE69033013T Expired - Fee Related DE69033013T2 (de) 1989-08-25 1990-08-24 Signalgenerator zur Verwendung in einem Frequenzsynthetisierer
DE69030794T Expired - Fee Related DE69030794T2 (de) 1989-08-25 1990-08-24 Frequenzsynthetisierer für einen Generator zur Erzeugung von Signalen hoher Reinheit sowie dazugehörige Schaltungselemente wie VCO, PLL und Signalgenerator
DE69031134T Expired - Fee Related DE69031134T2 (de) 1989-08-25 1990-08-24 Phasenregelkreisschaltung
DE69031738T Expired - Fee Related DE69031738T2 (de) 1989-08-25 1990-08-24 Spannungsgesteuerter Oszillator

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69033013T Expired - Fee Related DE69033013T2 (de) 1989-08-25 1990-08-24 Signalgenerator zur Verwendung in einem Frequenzsynthetisierer

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE69031134T Expired - Fee Related DE69031134T2 (de) 1989-08-25 1990-08-24 Phasenregelkreisschaltung
DE69031738T Expired - Fee Related DE69031738T2 (de) 1989-08-25 1990-08-24 Spannungsgesteuerter Oszillator

Country Status (3)

Country Link
US (2) US5122763A (de)
EP (5) EP0583804B1 (de)
DE (4) DE69033013T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5243344A (en) * 1991-05-30 1993-09-07 Koulopoulos Michael A Digital-to-analog converter--preamplifier apparatus
US5564100A (en) * 1992-06-03 1996-10-08 Motorola, Inc. Frequency modulator having a modulation varactor coupled to output of a VCO
FI98480C (fi) * 1993-12-23 1997-06-25 Nokia Mobile Phones Ltd Menetelmä ja järjestely silmukkasuodattimen ohjaamiseksi
US5493715A (en) * 1994-08-01 1996-02-20 Motorola, Inc. Multi-range voltage controlled resonant circuit
US5521533A (en) * 1994-09-16 1996-05-28 Rockwell International Apparatus and method for spurious signal reduction in direct-digital synthesizers
US5714914A (en) * 1995-02-28 1998-02-03 Ericsson Inc. High-power low-noise voltage-controlled oscillator
US6032028A (en) * 1996-04-12 2000-02-29 Continentral Electronics Corporation Radio transmitter apparatus and method
JP3666535B2 (ja) * 1997-05-09 2005-06-29 ソニー株式会社 受信機用ic
GB2336492B (en) * 1998-04-15 2000-06-07 Motorola Gmbh Voltage controlled oscillator
EP0989675A1 (de) * 1998-09-21 2000-03-29 TRT Lucent Technologies (SA) Vorrichtung zur Frequenzvoreinstellung eines spannungsgesteuerten Oszillators
EP0989676A1 (de) * 1998-09-21 2000-03-29 TRT Lucent Technologies (SA) Vorrichtung zur Frequenzvoreinstellung eines spannungsgesteuerten Oszillators
US6462627B1 (en) * 2000-08-25 2002-10-08 Tropian Inc. Oscillator circuit having reduced phase noise
EP1523351B1 (de) 2002-07-19 2010-01-06 Baxter International Inc. System für Peritoneal-Dialyse
MXPA05000817A (es) 2002-07-19 2005-04-28 Baxter Int Sistemas y metodos para realizar dialisis peritoneal.
US7747237B2 (en) * 2004-04-09 2010-06-29 Skyworks Solutions, Inc. High agility frequency synthesizer phase-locked loop
WO2005122407A1 (en) * 2004-06-10 2005-12-22 Koninklijke Philips Electronics N.V. Synchronization scheme with coupled frequency dividers
US8187191B2 (en) * 2009-01-08 2012-05-29 Volcano Corporation System and method for equalizing received intravascular ultrasound echo signals
TWI473418B (zh) * 2011-02-28 2015-02-11 Nihon Dempa Kogyo Co 振盪裝置
CN106899269B (zh) * 2017-02-15 2020-12-01 天水七四九电子有限公司 一种粗细调谐相结合的高频lc压控振荡器及调谐方法
US10425124B1 (en) * 2018-03-14 2019-09-24 Pericom Semiconductor Corporation Repeaters with fast transitions from low-power standby to low-frequency signal transmission
JP6952644B2 (ja) 2018-05-14 2021-10-20 株式会社東芝 半導体集積回路
US10998909B1 (en) 2019-09-12 2021-05-04 Dialog Semiconductor B.V. Sensing device comprising a phase locked loop circuit

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023370A (en) * 1959-11-25 1962-02-27 Servo Corp Of America Variable frequency generator control circuit
US3579115A (en) * 1969-02-11 1971-05-18 Motorola Inc Electronically tuned oscillator
US3568034A (en) * 1969-10-22 1971-03-02 Us Navy Power line harmonic comb filter
DE2045202C3 (de) * 1970-09-12 1978-09-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur Auswahl einer von zwei vorgegebenen Oberwellen eines Diodenvervielfachers
DE2047145C3 (de) * 1970-09-24 1975-05-15 Siemens Ag, 1000 Berlin Und 8000 Muenchen Einrichtung zur Anschaltung mehrerer FrequenzvervieHacherstufen an einen gemeinsamen Generator für die Grundfrequenz
US3902132A (en) * 1973-02-05 1975-08-26 Fluke Mfg Co John Closed loop variable frequency signal generator
DE2803610C2 (de) * 1978-01-27 1986-04-03 Siemens AG, 1000 Berlin und 8000 München Frequenzvervielfacher mit einer Step- Recovery-Diode
US4208635A (en) * 1978-08-14 1980-06-17 Scientific Micro Systems, Inc. Active filter and phase-locked loop using same
JPS5583345A (en) * 1978-12-19 1980-06-23 Nec Corp Phase control type oscillator
FR2511563B1 (fr) * 1981-08-14 1986-05-16 Trt Telecom Radio Electr Dispositif de verrouillage de phase pour fournir a sa sortie des signaux dont la frequence peut varier sur une large gamme
DE3135000A1 (de) * 1981-09-04 1983-05-26 Aeg Telefunken Nachrichten Regelverstaerker fuer einen phasenregelkreis
JPS58200606A (ja) * 1982-05-17 1983-11-22 Sharp Corp 発振回路
US4516085A (en) * 1982-08-02 1985-05-07 Hughes Aircraft Company Microwave frequency synthesizer using plural switchable low noise oscillators
JPS5989038A (ja) * 1982-11-12 1984-05-23 Victor Co Of Japan Ltd フエ−ズ・ロツクド・ル−プ回路
DE3316881C1 (de) * 1983-05-07 1990-01-25 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Oszillatorschaltung fuer Fernsehempfangsgeraete
US4590602A (en) * 1983-08-18 1986-05-20 General Signal Wide range clock recovery circuit
US4707665A (en) * 1984-01-31 1987-11-17 Westinghouse Electric Corp. Low noise signal generator
US4603304A (en) * 1984-06-27 1986-07-29 Hewlett-Packard Company Reference frequency generation for split-comb frequency synthesizer
JPS6160515U (de) * 1984-08-22 1986-04-23
US4595886A (en) * 1984-10-19 1986-06-17 Rockwell International Corporation AC loop gain and DC prepositioning adjustment for phase locked loop
US4593257A (en) * 1985-02-28 1986-06-03 Rca Corporation Multiband local oscillator
US4905239A (en) * 1987-03-26 1990-02-27 British Aerospace Public Limited Company R. F. signal distribution
US4885553A (en) * 1988-11-30 1989-12-05 Motorola, Inc. Continuously adaptive phase locked loop synthesizer
JPH02311893A (ja) * 1989-05-29 1990-12-27 Hitachi Ltd 高精度pll装置
JPH03157018A (ja) * 1989-08-10 1991-07-05 Mitsubishi Electric Corp 周波数シンセサイザ
US5015970A (en) * 1990-02-15 1991-05-14 Advanced Micro Devices, Inc. Clock recovery phase lock loop having digitally range limited operating window

Also Published As

Publication number Publication date
EP0414260A3 (en) 1992-08-26
DE69031134D1 (de) 1997-08-28
DE69031134T2 (de) 1998-03-05
EP0583800B1 (de) 1997-11-19
DE69031738D1 (de) 1998-01-02
US5122763A (en) 1992-06-16
DE69031738T2 (de) 1998-06-25
US5160902A (en) 1992-11-03
EP0583802A1 (de) 1994-02-23
EP0414260B1 (de) 1997-05-28
EP0583802B1 (de) 1999-03-17
EP0583804B1 (de) 1997-07-23
EP0414260A2 (de) 1991-02-27
DE69030794T2 (de) 1998-01-15
DE69033013T2 (de) 1999-11-25
EP0583804A1 (de) 1994-02-23
EP0583801A1 (de) 1994-02-23
DE69033013D1 (de) 1999-04-22
EP0583800A1 (de) 1994-02-23

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee