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Extract from the Register of European Patents

EP About this file: EP0667677

EP0667677 - Device for multiplying a capacitance by a variable coefficient for adjusting a filter cut-off frequency and filter comprising same [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  12.01.2001
Database last updated on 06.07.2024
Most recent event   Tooltip12.01.2001Withdrawal of applicationpublished on 28.02.2001 [2001/09]
Applicant(s)For all designated states
ALCATEL MOBILE COMMUNICATION FRANCE
10, rue de la Baume
75008 Paris / FR
[N/P]
Former [1995/33]For all designated states
ALCATEL MOBILE COMMUNICATION FRANCE
10, rue de la Baume
F-75008 Paris / FR
Inventor(s)01 / Genest, Pierre
8, Rue A. Renoir
F-95430 Butry sur Oise / FR
[1995/33]
Representative(s)El Manouni, Josiane, et al
Alcatel-Lucent International
Patent Business
Site Nokia Paris Saclay
Route de Villejust
91620 Nozay / FR
[N/P]
Former [1995/33]El Manouni, Josiane, et al
SOSPI 14-16, rue de la Baume
F-75008 Paris / FR
Application number, filing date95400246.506.02.1995
[1995/33]
Priority number, dateFR1994000145409.02.1994         Original published format: FR 9401454
[1995/33]
Filing languageFR
Procedural languageFR
PublicationType: A1 Application with search report 
No.:EP0667677
Date:16.08.1995
Language:FR
[1995/33]
Search report(s)(Supplementary) European search report - dispatched on:EP04.05.1995
ClassificationIPC:H03H11/04, H03H11/40, H03H11/48
[1995/33]
CPC:
H03H11/04 (EP,US); H03H11/405 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   IT,   LI,   NL,   SE [1995/33]
TitleGerman:Anordnung zur Multiplizierung einer Kapazität mit einem variierbarem Koeffizienten zur Grenzfrequenzregelung eines Filters und Filter mit einer derartigen Anordnung[2000/45]
English:Device for multiplying a capacitance by a variable coefficient for adjusting a filter cut-off frequency and filter comprising same[1995/33]
French:Dispositif de multiplication d'une capacité par un coefficient variable, notamment en vue de l'ajustement d'une fréquence de coupure d'un filtre, et filtre comportant un tel dispositif[1995/37]
Former [1995/33]Anordnung zur Multiplizierung einer Kapazität mit einem variierbarem Koeffizienten zur Grenzfrequenzregulung eines Filters und Filter mit einer derartigen Anordnung
Former [1995/33]Dispositif de multiplication d'une capacité par un coéfficient variable, notamment en vue de l'ajustement d'une fréquence de coupure d'un filtre, et filtre comportant un tel dispositif
Examination procedure30.12.1995Examination requested  [1996/10]
02.03.1999Despatch of a communication from the examining division (Time limit: M06)
03.09.1999Reply to a communication from the examining division
11.10.2000Despatch of communication of intention to grant (Approval: )
21.12.2000Application withdrawn by applicant  [2001/09]
Fees paidRenewal fee
20.01.1997Renewal fee patent year 03
19.01.1998Renewal fee patent year 04
19.01.1999Renewal fee patent year 05
14.01.2000Renewal fee patent year 06
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Documents cited:Search[XA]WO8102819  (MOTOROLA INC [US]) [X] 1 * page 7, line 25 - page 13, line 9 * [A] 2,3;
 [A]WO9303543  (BELL COMMUNICATIONS RES [US]) [A] 1 * page 3, line 7 - page 3, line 34; figure 1 *
 [A]  - SITTHICHAI POOKAIYAUDOM ET AL, "EICIENT CIRCUIT IMPLEMENTATIONS OF CURRENT CONVEYORS, NEGATIVE IMPEDANCE CONVERTERS AND NONLINEAR IMPEDANCE CONVERTERS USING OPERATIONAL TRANSCONDUCTANCE AMPLIFIERS", INTERNATIONAL JOURNAL OF ELECTRONICS, LONDON GB, vol. 64, page 941 [A] 3,7 * the whole document *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.