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Extract from the Register of European Patents

EP About this file: EP4085546

EP4085546 - LOW-POWER PRE-COMPENSATION OF LINEAR AND NONLINEAR TRANSMITTER EFFECTS IN NARROW-SPECTRUM OPTICAL SIGNALS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  01.12.2023
Database last updated on 27.07.2024
FormerThe patent has been granted
Status updated on  23.12.2022
FormerGrant of patent is intended
Status updated on  08.11.2022
FormerRequest for examination was made
Status updated on  07.10.2022
FormerThe international publication has been made
Status updated on  16.09.2022
Formerunknown
Status updated on  24.03.2022
Most recent event   Tooltip31.05.2024Lapse of the patent in a contracting state
New state(s): IT		published on 03.07.2024  [2024/27]
Applicant(s)For all designated states
Ciena Corporation
7035 Ridge Road
Hanover, MD 21076 / US
[2022/45]
Inventor(s)01 / OVEIS GHARAN, Shahab
San Jose California 95134 / US
02 / ZIMMER, Kendal
Ottawa Ontario K2K 0L1 / CA
03 / BOURGET, Christian
Ottawa Ontario K2K 0L1 / CA
04 / HARLEY, James
Ottawa Ontario K2K 0L1 / CA
 [2023/02]
Former [2022/45]01 / OVEIS GHARAN, Shahab
San Jose California 95134 / US
02 / ZIMMER, Kendal
Ottawa Ontario K2K 0L1 / CA
03 / BOURGET, Christian
Ottawa Ontario K2K 0L1 / CA
Representative(s)Dehns
St. Bride's House
10 Salisbury Square
London EC4Y 8JD / GB
[2022/45]
Application number, filing date22710163.107.03.2022
[2022/45]
WO2022IB51996
Priority number, dateUS202163160073P12.03.2021         Original published format: US 202163160073 P
US20211746043730.08.2021         Original published format: US202117460437
[2022/45]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2022189933
Date:15.09.2022
Language:EN
[2022/37]
Type: A1 Application with search report 
No.:EP4085546
Date:09.11.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 15.09.2022 takes the place of the publication of the European patent application.
[2022/45]
Type: B1 Patent specification 
No.:EP4085546
Date:25.01.2023
Language:EN
[2023/04]
Search report(s)International search report - published on:EP15.09.2022
ClassificationIPC:H04B10/2507, H04B10/2513, H04B10/50, H04B10/516, H04B10/54
[2022/45]
CPC:
H04B10/25073 (EP); H04B10/505 (EP); H04B10/54 (EP)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2022/45]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:LEISTUNGSARME VORKOMPENSATION LINEARER UND NICHTLINEARER SENDEREFFEKTE IN OPTISCHEN SCHMALBANDSIGNALEN[2022/45]
English:LOW-POWER PRE-COMPENSATION OF LINEAR AND NONLINEAR TRANSMITTER EFFECTS IN NARROW-SPECTRUM OPTICAL SIGNALS[2022/45]
French:PRÉ-COMPENSATION DE FAIBLE PUISSANCE D'EFFETS D'ÉMETTEUR LINÉAIRE ET NON LINÉAIRE DANS DES SIGNAUX OPTIQUES À SPECTRE ÉTROIT[2022/45]
Entry into regional phase21.06.2022National basic fee paid 
21.06.2022Designation fee(s) paid 
21.06.2022Examination fee paid 
Examination procedure21.06.2022Amendment by applicant (claims and/or description)
21.06.2022Examination requested  [2022/45]
21.06.2022Date on which the examining division has become responsible
09.11.2022Communication of intention to grant the patent
19.12.2022Fee for grant paid
19.12.2022Fee for publishing/printing paid
19.12.2022Receipt of the translation of the claim(s)
Opposition(s)26.10.2023No opposition filed within time limit [2024/01]
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
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  TooltipAT25.01.2023
CZ25.01.2023
DK25.01.2023
EE25.01.2023
ES25.01.2023
FI25.01.2023
HR25.01.2023
IT25.01.2023
LT25.01.2023
LV25.01.2023
MC25.01.2023
PL25.01.2023
RO25.01.2023
RS25.01.2023
SE25.01.2023
SI25.01.2023
SK25.01.2023
SM25.01.2023
NO25.04.2023
GR26.04.2023
IS25.05.2023
PT25.05.2023
[2024/27]
Former [2024/11]AT25.01.2023
CZ25.01.2023
DK25.01.2023
EE25.01.2023
ES25.01.2023
FI25.01.2023
HR25.01.2023
LT25.01.2023
LV25.01.2023
MC25.01.2023
PL25.01.2023
RO25.01.2023
RS25.01.2023
SE25.01.2023
SI25.01.2023
SK25.01.2023
SM25.01.2023
NO25.04.2023
GR26.04.2023
IS25.05.2023
PT25.05.2023
Former [2023/50]AT25.01.2023
CZ25.01.2023
DK25.01.2023
EE25.01.2023
ES25.01.2023
FI25.01.2023
HR25.01.2023
LT25.01.2023
LV25.01.2023
MC25.01.2023
PL25.01.2023
RO25.01.2023
RS25.01.2023
SE25.01.2023
SK25.01.2023
SM25.01.2023
NO25.04.2023
GR26.04.2023
IS25.05.2023
PT25.05.2023
Former [2023/49]AT25.01.2023
CZ25.01.2023
DK25.01.2023
EE25.01.2023
ES25.01.2023
FI25.01.2023
HR25.01.2023
LT25.01.2023
LV25.01.2023
MC25.01.2023
PL25.01.2023
RO25.01.2023
RS25.01.2023
SE25.01.2023
SM25.01.2023
NO25.04.2023
GR26.04.2023
IS25.05.2023
PT25.05.2023
Former [2023/48]AT25.01.2023
DK25.01.2023
EE25.01.2023
ES25.01.2023
FI25.01.2023
HR25.01.2023
LT25.01.2023
LV25.01.2023
MC25.01.2023
PL25.01.2023
RS25.01.2023
SE25.01.2023
SM25.01.2023
NO25.04.2023
GR26.04.2023
IS25.05.2023
PT25.05.2023
Former [2023/46]AT25.01.2023
DK25.01.2023
ES25.01.2023
FI25.01.2023
HR25.01.2023
LT25.01.2023
LV25.01.2023
PL25.01.2023
RS25.01.2023
SE25.01.2023
SM25.01.2023
NO25.04.2023
GR26.04.2023
IS25.05.2023
PT25.05.2023
Former [2023/39]AT25.01.2023
ES25.01.2023
FI25.01.2023
HR25.01.2023
LT25.01.2023
LV25.01.2023
PL25.01.2023
RS25.01.2023
SE25.01.2023
NO25.04.2023
GR26.04.2023
IS25.05.2023
PT25.05.2023
Former [2023/38]AT25.01.2023
ES25.01.2023
FI25.01.2023
HR25.01.2023
LT25.01.2023
LV25.01.2023
PL25.01.2023
RS25.01.2023
SE25.01.2023
NO25.04.2023
GR26.04.2023
PT25.05.2023
Former [2023/37]AT25.01.2023
ES25.01.2023
FI25.01.2023
HR25.01.2023
LT25.01.2023
LV25.01.2023
RS25.01.2023
SE25.01.2023
NO25.04.2023
GR26.04.2023
PT25.05.2023
Former [2023/36]AT25.01.2023
ES25.01.2023
FI25.01.2023
HR25.01.2023
LT25.01.2023
LV25.01.2023
RS25.01.2023
SE25.01.2023
NO25.04.2023
PT25.05.2023
Former [2023/35]AT25.01.2023
ES25.01.2023
HR25.01.2023
LT25.01.2023
RS25.01.2023
NO25.04.2023
PT25.05.2023
Former [2023/34]ES25.01.2023
LT25.01.2023
RS25.01.2023
PT25.05.2023
Former [2023/33]ES25.01.2023
LT25.01.2023
Cited inInternational search[A]US6973141  (ISAKSEN DAVID BRUCE [US], et al) [A] 1-11 * figure 4b * * column 6, line 60 - column 7, line 24 *;
 [A]US8705604  (GOODMAN JOEL I [US], et al) [A] 1-11 * figure 10 * * column 1, line 39 - line 59 ** column 3, line 15 - line 21 *;
 [A]CN111865432  (UNIV ZHEJIANG TECHNOLOGY) [A] 1-11 * figure 1 * * paragraph [0011] *;
 [A]  - WENG YI ET AL, "Comparison of advanced DSP techniques for spectrally efficient Nyquist-WDM signal generation using digital FIR filters at transmitters based on higher-order modulation formats", PROCEEDINGS OF SPIE; [PROCEEDINGS OF SPIE ISSN 0277-786X VOLUME 10524], SPIE, US, (20160213), vol. 9773, doi:10.1117/12.2206098, ISBN 978-1-5106-1533-5, pages 977305 - 977305, XP060069616 [A] 1-11 * figure 3 * * chapter "ABSTRACT", "2.2 FIR Filter using Zero-Order Holding" and "2.3 PDM-64QAM Nyquist Transmitter" *

DOI:   http://dx.doi.org/10.1117/12.2206098
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.