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Extract from the Register of European Patents

EP About this file: EP0822649

EP0822649 - Reconstruction of BEMF signals for synchronizing the driving of brushless-sensorless motors by means of redefine driving signals [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  16.02.2001
Database last updated on 16.07.2024
Most recent event   Tooltip16.02.2001No opposition filed within time limitpublished on 04.04.2001 [2001/14]
Applicant(s)For all designated states
STMicroelectronics Srl
Via C. Olivetti, 2
20041 Agrate Brianza (Milano) / IT
[N/P]
Former [1998/35]For all designated states
STMicroelectronics S.r.l.
Via C. Olivetti, 2
20041 Agrate Brianza (Milano) / IT
Former [1998/06]For all designated states
SGS-THOMSON MICROELECTRONICS s.r.l.
Via C. Olivetti, 2
20041 Agrate Brianza (Milano) / IT
Inventor(s)01 / Maiocchi, Giuseppe
Via San Francesco, 41
22079 Villa Guardia / IT
02 / Viti, Marco
Via C. Marx, 345/C
20099 Sesto S. Giovanni / IT
[1998/06]
Representative(s)Pellegri, Alberto, et al
Società Italiana Brevetti S.p.A. Via Carducci, 8
20123 Milano / IT
[N/P]
Former [1998/06]Pellegri, Alberto, et al
c/o Società Italiana Brevetti S.p.A. Via Puccini, 7
21100 Varese / IT
Application number, filing date96830440.201.08.1996
[1998/06]
Filing languageIT
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0822649
Date:04.02.1998
Language:EN
[1998/06]
Type: B1 Patent specification 
No.:EP0822649
Date:19.04.2000
Language:EN
[2000/16]
Search report(s)(Supplementary) European search report - dispatched on:EP06.01.1997
ClassificationIPC:H02P6/00, H02P6/18
[1998/06]
CPC:
H02P8/34 (EP,US); H02P6/182 (EP,US); H02P6/34 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT [1998/06]
TitleGerman:Wiederherstellung eines Gegen-EMK Signals zur Synchronisation des Antriebs eines bürsten- und sensorlosen Motors durch Neudefinieren von Antriebssignalen[1998/06]
English:Reconstruction of BEMF signals for synchronizing the driving of brushless-sensorless motors by means of redefine driving signals[1998/06]
French:Reconstruction des signals FCEM pour la synchronisation de commande des moteurs sans capteur et sans balai par reconstruire des signals de commande[1998/06]
Examination procedure15.06.1998Examination requested  [1998/33]
14.07.1999Despatch of communication of intention to grant (Approval: Yes)
29.09.1999Communication of intention to grant the patent
19.11.1999Fee for grant paid
19.11.1999Fee for publishing/printing paid
Opposition(s)20.01.2001No opposition filed within time limit [2001/14]
Fees paidRenewal fee
11.08.1998Renewal fee patent year 03
10.08.1999Renewal fee patent year 04
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Documents cited:Search[A]EP0324396  (THOMSON BRANDT GMBH [DE]) [A] 1,5,9 * column A; figure 1 *;
 [A]US4409534  (BOSE BIMAL K [US]) [A] 1,5,9 * column A; figures 1A,1B *;
 [A]FR2576469  (RENAULT [FR]) [A] 1,5 * the whole document *;
 [A]US5367234  (DITUCCI JOSEPH [US]) [A] 1,5 * column A; figure 1 *
by applicantEP19960830180
 EP19960830190
 EP19960830295
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.