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Extract from the Register of European Patents

EP About this file: EP0704126

EP0704126 - ADAPTIVE NOISE-PREDICTIVE PARTIAL-RESPONSE EQUALIZATION FOR CHANNELS WITH SPECTRAL NULLS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  07.08.1998
Database last updated on 18.11.2024
Most recent event   Tooltip09.05.2002Lapse of the patent in a contracting state
New state(s): ES
published on 26.06.2002  [2002/26]
Applicant(s)For all designated states
International Business Machines Corporation
New Orchard Road
Armonk, NY 10504 / US
[N/P]
Former [1997/06]For all designated states
International Business Machines Corporation
Old Orchard Road
Armonk, N.Y. 10504 / US
Former [1996/14]For all designated states
INTERNATIONAL BUSINESS MACHINES CORPORATION
Old Orchard Road
Armonk, N.Y. 10504 / US
Inventor(s)01 / CHEVILLAT, Pierre
Im Baumgarten 12
CH-8802 Kilchberg / CH
02 / ELEFTHERIOU, Evangelos
Bellariastrasse 53
CH-5030 Zürich / CH
03 / MAIWALD, Dietrich
Neugutstrasse 3
CH-8820 Wädenswill / CH
[1996/14]
Representative(s)Heusch, Christian
IBM Research Laboratory
Intellectual Property Department
Säumerstrasse 4
8803 Rüschlikon / CH
[N/P]
Former [1996/14]Heusch, Christian
IBM Research Laboratory, Intellectual Property Department, Säumerstrasse 4
CH-8803 Rüschlikon / CH
Application number, filing date93912969.814.06.1993
[1996/14]
WO1993EP01500
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9429989
Date:22.12.1994
Language:EN
[1994/28]
Type: A1 Application with search report 
No.:EP0704126
Date:03.04.1996
Language:EN
The application published by WIPO in one of the EPO official languages on 22.12.1994 takes the place of the publication of the European patent application.
[1996/14]
Type: B1 Patent specification 
No.:EP0704126
Date:01.10.1997
Language:EN
[1997/40]
Search report(s)International search report - published on:EP22.12.1994
ClassificationIPC:H04L25/03, H04L25/497, G11B20/10
[1996/14]
CPC:
H04L25/03267 (EP,US); G11B20/10009 (EP,US); G11B5/09 (EP,US);
H04L2025/03369 (EP,US); H04L2025/03496 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   ES,   FR,   GB,   IT,   LI,   NL,   SE [1996/14]
TitleGerman:ADAPTIVE, RAUSCHVORHERSAGENDE PARTIAL-RESPONSE ENTZERRUNG FÜR KANÄLE MIT SPEKTRALEN NULLSTELLEN[1996/14]
English:ADAPTIVE NOISE-PREDICTIVE PARTIAL-RESPONSE EQUALIZATION FOR CHANNELS WITH SPECTRAL NULLS[1996/14]
French:SYSTEME D'EGALISATION ADAPTIVE A REPONSE PARTIELLE ET A PREVISION DE BRUIT, POUR DES VOIES A POINTS DE PUISSANCE SPECTRALE NULLE[1996/14]
Entry into regional phase08.12.1995National basic fee paid 
08.12.1995Designation fee(s) paid 
08.12.1995Examination fee paid 
Examination procedure18.05.1994Request for preliminary examination filed
International Preliminary Examining Authority: EP
08.12.1995Examination requested  [1996/14]
30.05.1996Despatch of a communication from the examining division (Time limit: M04)
29.08.1996Reply to a communication from the examining division
11.12.1996Despatch of communication of intention to grant (Approval: Yes)
02.04.1997Communication of intention to grant the patent
15.04.1997Fee for grant paid
15.04.1997Fee for publishing/printing paid
Opposition(s)02.07.1998No opposition filed within time limit [1998/39]
Fees paidRenewal fee
08.12.1995Renewal fee patent year 03
26.06.1996Renewal fee patent year 04
23.06.1997Renewal fee patent year 05
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAT01.10.1997
BE01.10.1997
CH01.10.1997
ES01.10.1997
LI01.10.1997
SE01.01.1998
[2002/26]
Former [1998/46]AT01.10.1997
BE01.10.1997
CH01.10.1997
LI01.10.1997
SE01.01.1998
Former [1998/43]AT01.10.1997
CH01.10.1997
LI01.10.1997
SE01.01.1998
Former [1998/30]AT01.10.1997
SE01.01.1998
Former [1998/21]SE01.01.1998
Cited inInternational search[DY]US5031195  (CHEVILLAT PIERRE R [CH], et al) [DY] 5,6,8-11 * column 9, line 31 - line 42; figure 7; claims 1,2 *;
 [DXY]  - P.R. CHEVILLAT ET AL., "Noise-predictive Partial Response Equalizers and applications", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CHICAGO, (199206), vol. 2, pages 942 - 947, XP000326811 [DX] 1-4,7,12-15 * the whole document * [Y] 5,6,8-11

DOI:   http://dx.doi.org/10.1109/ICC.1992.268073
 [A]  - J.MOON , L.R.CARLEY, "Performance comparison of detection methods in magnetic recording", IEEE TRANSACTIONS ON MAGNETICS, NEW YORK, (199011), vol. 26, no. 6, pages 3155 - 3172, XP000200747 [A] 1,13 * page 3155, column L, paragraph 2 - column R, paragraph 1 *

DOI:   http://dx.doi.org/10.1109/20.102903
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