Extract from the Register of European Patents

EP About this file: EP0634856

EP0634856 - Nonlinear coding for channels with intersymbol interference [Right-click to bookmark this link]
Former [1995/03]Nonlinear coding for ISI channels
[2000/51]
StatusNo opposition filed within time limit
Status updated on  21.09.2002
Database last updated on 26.03.2026
Most recent event   Tooltip21.09.2002No opposition filed within time limitpublished on 06.11.2002  [2002/45]
Applicant(s)For all designated states
Telogy Networks Inc.
20250 Century Boulevard
Germantown, MD 20874 / US
[N/P]
Former [2000/35]For all designated states
Telogy Networks, Inc.
20250 Century Boulevard
Germantown, MD 20874 / US
Former [1998/45]For all designated states
Paradyne Corporation
8545 126th Avenue North
Largo, Florida 33773 / US
Former [1995/03]For all designated states
AT&T Corp.
32 Avenue of the Americas
New York, NY 10013-2412 / US
Inventor(s)01 / Betts, William Lewis
2016 Montana Avenue NE
St. Petersburg, Florida 33703 / US
[1995/03]
Representative(s)Jehan, Robert, et al
Williams Powell
44 Prospect Place
Bromley, Kent BR2 9HN / GB
[N/P]
Former [1997/14]Jehan, Robert, et al
Williams, Powell & Associates, 34 Tavistock Street
London WC2E 7PB / GB
Former [1995/03]Buckley, Christopher Simon Thirsk, et al
AT&T (UK) LTD., AT&T Intellectual Property Division, 5 Mornington Road
Woodford Green, Essex IG8 0TU / GB
Application number, filing date94304979.106.07.1994
[1995/03]
Priority number, dateUS1993009350816.07.1993         Original published format: US 93508
[1995/03]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0634856
Date:18.01.1995
Language:EN
[1995/03]
Type: A3 Search report 
No.:EP0634856
Date:31.05.1995
Language:EN
[1995/22]
Type: B1 Patent specification 
No.:EP0634856
Date:14.11.2001
Language:EN
[2001/46]
Search report(s)(Supplementary) European search report - dispatched on:EP12.04.1995
ClassificationIPC:H04L27/34, H04L25/497
[1995/03]
CPC:
H04L25/4975 (EP,US); H04L25/03343 (EP,US); H04L25/4927 (EP,US);
H04L25/497 (EP,US); H04L27/3427 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT [1995/03]
TitleGerman:Nichtlineare Kodierung für Kanälen mit Intersymbolstörungen[2000/51]
English:Nonlinear coding for channels with intersymbol interference[2000/51]
French:Codage non linéaire pour canaux à interférence intersymbole[1995/03]
Former [1995/03]Nichtlineare Kodierung für Kanälen mit Nachborsymbolströmungen
Former [1995/03]Nonlinear coding for ISI channels
Examination procedure15.11.1995Examination requested  [1996/03]
29.11.1999Despatch of a communication from the examining division (Time limit: M04)
03.04.2000Reply to a communication from the examining division
09.01.2001Despatch of communication of intention to grant (Approval: Yes)
14.05.2001Communication of intention to grant the patent
06.08.2001Fee for grant paid
06.08.2001Fee for publishing/printing paid
Opposition(s)15.08.2002No opposition filed within time limit [2002/45]
Fees paidRenewal fee
16.07.1996Renewal fee patent year 03
23.06.1997Renewal fee patent year 04
29.06.1998Renewal fee patent year 05
23.06.1999Renewal fee patent year 06
21.06.2000Renewal fee patent year 07
25.07.2001Renewal fee patent year 08
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Documents cited:Search[AD]   EYUBOGLU M V ET AL.:: "Advanced modulation techniques for V.Fast", EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS AND RELATED TECHNOLOGIES, MAY-JUNE 1993, ITALY, vol. 4, no. 3, ISSN 1120-3862, pages 243 - 256, XP000385751
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