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Extract from the Register of European Patents

EP About this file: EP0942561

EP0942561 - Adaptive step size for channel estimation [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  06.01.2006
Database last updated on 18.11.2024
Most recent event   Tooltip25.07.2008Change - representativepublished on 27.08.2008  [2008/35]
Applicant(s)For all designated states
NEC Corporation
7-1, Shiba 5-chome Minato-ku
Tokyo 108-8001 / JP
[N/P]
Former [1999/37]For all designated states
NEC CORPORATION
7-1, Shiba 5-chome, Minato-ku
Tokyo / JP
Inventor(s)01 / Fumiaki, Koizumi
c/o NEC Corporation, 7-1, Shiba 5-chome
Minato-ku, Tokyo / JP
[1999/37]
Representative(s)Vossius & Partner Patentanwälte Rechtsanwälte mbB
Siebertstrasse 3
81675 München / DE
[N/P]
Former [2008/35]Vossius & Partner
Siebertstrasse 3
81675 München / DE
Former [1999/37]VOSSIUS & PARTNER
Siebertstrasse 4
81675 München / DE
Application number, filing date99103973.610.03.1999
[1999/37]
Priority number, dateJP1998006317013.03.1998         Original published format: JP 6317098
[1999/37]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0942561
Date:15.09.1999
Language:EN
[1999/37]
Type: A3 Search report 
No.:EP0942561
Date:03.07.2002
[2002/27]
Type: B1 Patent specification 
No.:EP0942561
Date:02.03.2005
Language:EN
[2005/09]
Search report(s)(Supplementary) European search report - dispatched on:EP16.05.2002
ClassificationIPC:H04L25/02, H04L1/20, H04L25/03
[2002/27]
CPC:
H04L1/20 (EP,US); H04L25/025 (EP,US)
Former IPC [1999/37]H04L25/02, H04L1/20
Designated contracting statesDE,   FR,   GB,   IT [2003/13]
Former [1999/37]AT,  BE,  CH,  CY,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE 
TitleGerman:Adaptive Schrittweite für Kanalschätzung[1999/37]
English:Adaptive step size for channel estimation[1999/37]
French:Pas adaptatif pour estimation de canal[1999/37]
Examination procedure23.05.2002Examination requested  [2002/30]
09.10.2002Despatch of a communication from the examining division (Time limit: M04)
12.02.2003Reply to a communication from the examining division
08.08.2003Despatch of a communication from the examining division (Time limit: M06)
18.02.2004Reply to a communication from the examining division
18.05.2004Despatch of a communication from the examining division (Time limit: M01)
19.05.2004Reply to a communication from the examining division
30.06.2004Communication of intention to grant the patent
23.12.2004Fee for grant paid
23.12.2004Fee for publishing/printing paid
Opposition(s)05.12.2005No opposition filed within time limit [2006/08]
Fees paidRenewal fee
30.03.2001Renewal fee patent year 03
28.03.2002Renewal fee patent year 04
31.03.2003Renewal fee patent year 05
31.03.2004Renewal fee patent year 06
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Documents cited:Search[A]WO9418752  (MOTOROLA INC [US]) [A] 1-6 * page 3, line 10 - line 23 * * page 8, line 6 - page 9, line 6 *
 [X]  - JIANJUN WU ET AL, "A NEW ADAPTIVE EQUALIZER WITH CHANNEL ESTIMATOR FOR MOBILE RADIO COMMUNICATIONS", IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, IEEE INC. NEW YORK, US, (19960801), vol. 45, no. 3, ISSN 0018-9545, pages 467 - 474, XP000632291 [X] 1 * Section V.;; figures 2,3 *

DOI:   http://dx.doi.org/10.1109/25.533762
 [A]  - GOH CHUI CHUI ET AL, Variable step adaptive equalizer for digital mobile radio, SINGAPORE ICCS '94. CONFERENCE PROCEEDINGS. SINGAPORE 14-18 NOV. 1994, NEW YORK, NY, USA,IEEE, US, PAGE(S) 119-123, ISBN 0-7803-2046-8, XP010149922 [A] 1-6 * page 120, column 2 *

DOI:   http://dx.doi.org/10.1109/ICCS.1994.474094
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.