blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Release notes
European Patent Register Assistant
European Patent Register Resource Book
European Patent Register – pocket guide
FAQ - European Patent Register
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP About this file: EP2449681

EP2449681 - CURRENT STEERING DIGITAL-TO-ANALOG CONVERTER [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  16.06.2017
Database last updated on 04.11.2024
Most recent event   Tooltip06.03.2020Lapse of the patent in a contracting state
New state(s): TR		published on 08.04.2020  [2020/15]
Applicant(s)For all designated states
MediaTek Singapore Pte. Ltd.
20 Ayer Rajah Crescent No. 04-01
Singapore 139964 / SG
[2016/32]
Former [2012/19]For all designated states
MediaTek Singapore Pte Ltd.
20 Ayer Rajah Crescent No. 04-01
Singapore 139964 / SG
Inventor(s)01 / O'DONNELL, John, Jude
3 Manor View
Quin Co. Clare / IE
02 / THOMPSON, Frederick, Carnegie
30 Marine Cove
Foynes Co. Limerick / IE
 [2012/19]
Representative(s)2K Patentanwälte Blasberg Kewitz & Reichel
Partnerschaft mbB
Schumannstrasse 27
60325 Frankfurt am Main / DE
[2014/43]
Former [2012/19]Blasberg, Tilo, et al
2K Patentanwälte Blasberg Kewitz & Reichel Partnerschaft Corneliusstrasse 18
60325 Frankfurt am Main / DE
Application number, filing date10730397.610.06.2010
[2016/32]
WO2010EP58175
Priority number, dateUS20090221658P30.06.2009         Original published format: US 221658 P
US2009056060216.09.2009         Original published format: US 560602
[2012/19]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2011000680
Date:06.01.2011
Language:EN
[2011/01]
Type: A1 Application with search report 
No.:EP2449681
Date:09.05.2012
Language:EN
The application published by WIPO in one of the EPO official languages on 06.01.2011 takes the place of the publication of the European patent application.
[2012/19]
Type: B1 Patent specification 
No.:EP2449681
Date:10.08.2016
Language:EN
[2016/32]
Search report(s)International search report - published on:EP06.01.2011
ClassificationIPC:H03M1/74
[2012/19]
CPC:
H03M1/0836 (EP,US); H03M1/66 (EP,US)
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,   SE,   SI,   SK,   SM,   TR [2012/19]
Extension statesBANot yet paid
MENot yet paid
RSNot yet paid
TitleGerman:STROMGESTEUERTER DIGITAL ANALOG WANDLER[2016/16]
English:CURRENT STEERING DIGITAL-TO-ANALOG CONVERTER[2012/19]
French:CONVERTISSEUR NUMÉRIQUE/ANALOGIQUE À COMMANDE D'INTENSITÉ[2012/19]
Former [2012/19]STROMSTEUERNDER DIGITAL-ANALOG-WANDLER
Entry into regional phase30.01.2012National basic fee paid 
30.01.2012Designation fee(s) paid 
30.01.2012Examination fee paid 
Examination procedure18.01.2012Amendment by applicant (claims and/or description)
30.01.2012Examination requested  [2012/19]
01.03.2013Despatch of a communication from the examining division (Time limit: M04)
28.06.2013Reply to a communication from the examining division
07.12.2015Despatch of a communication from the examining division (Time limit: M04)
10.02.2016Reply to a communication from the examining division
05.04.2016Communication of intention to grant the patent
28.06.2016Fee for grant paid
28.06.2016Fee for publishing/printing paid
28.06.2016Receipt of the translation of the claim(s)
Divisional application(s)The date of the Examining Division's first communication in respect of the earliest application for which a communication has been issued is  01.03.2013
Opposition(s)11.05.2017No opposition filed within time limit [2017/29]
Fees paidRenewal fee
31.03.2012Renewal fee patent year 03
27.06.2013Renewal fee patent year 04
31.03.2014Renewal fee patent year 05
30.06.2015Renewal fee patent year 06
29.06.2016Renewal fee patent year 07
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  TooltipHU10.06.2010
AL10.08.2016
AT10.08.2016
BE10.08.2016
CY10.08.2016
CZ10.08.2016
DK10.08.2016
EE10.08.2016
ES10.08.2016
FI10.08.2016
HR10.08.2016
IT10.08.2016
LT10.08.2016
LV10.08.2016
MC10.08.2016
MK10.08.2016
NL10.08.2016
PL10.08.2016
RO10.08.2016
SE10.08.2016
SI10.08.2016
SK10.08.2016
SM10.08.2016
TR10.08.2016
BG10.11.2016
NO10.11.2016
GR11.11.2016
IS10.12.2016
PT12.12.2016
[2020/15]
Former [2019/51]HU10.06.2010
AL10.08.2016
AT10.08.2016
BE10.08.2016
CY10.08.2016
CZ10.08.2016
DK10.08.2016
EE10.08.2016
ES10.08.2016
FI10.08.2016
HR10.08.2016
IT10.08.2016
LT10.08.2016
LV10.08.2016
MC10.08.2016
MK10.08.2016
NL10.08.2016
PL10.08.2016
RO10.08.2016
SE10.08.2016
SI10.08.2016
SK10.08.2016
SM10.08.2016
BG10.11.2016
NO10.11.2016
GR11.11.2016
IS10.12.2016
PT12.12.2016
Former [2019/46]HU10.06.2010
AL10.08.2016
AT10.08.2016
BE10.08.2016
CY10.08.2016
CZ10.08.2016
DK10.08.2016
EE10.08.2016
ES10.08.2016
FI10.08.2016
HR10.08.2016
IT10.08.2016
LT10.08.2016
LV10.08.2016
MC10.08.2016
NL10.08.2016
PL10.08.2016
RO10.08.2016
SE10.08.2016
SI10.08.2016
SK10.08.2016
SM10.08.2016
BG10.11.2016
NO10.11.2016
GR11.11.2016
IS10.12.2016
PT12.12.2016
Former [2019/31]HU10.06.2010
AL10.08.2016
AT10.08.2016
BE10.08.2016
CZ10.08.2016
DK10.08.2016
EE10.08.2016
ES10.08.2016
FI10.08.2016
HR10.08.2016
IT10.08.2016
LT10.08.2016
LV10.08.2016
MC10.08.2016
NL10.08.2016
PL10.08.2016
RO10.08.2016
SE10.08.2016
SI10.08.2016
SK10.08.2016
SM10.08.2016
BG10.11.2016
NO10.11.2016
GR11.11.2016
IS10.12.2016
PT12.12.2016
Former [2018/46]AL10.08.2016
AT10.08.2016
BE10.08.2016
CZ10.08.2016
DK10.08.2016
EE10.08.2016
ES10.08.2016
FI10.08.2016
HR10.08.2016
IT10.08.2016
LT10.08.2016
LV10.08.2016
MC10.08.2016
NL10.08.2016
PL10.08.2016
RO10.08.2016
SE10.08.2016
SI10.08.2016
SK10.08.2016
SM10.08.2016
BG10.11.2016
NO10.11.2016
GR11.11.2016
IS10.12.2016
PT12.12.2016
Former [2018/11]AT10.08.2016
BE10.08.2016
CZ10.08.2016
DK10.08.2016
EE10.08.2016
ES10.08.2016
FI10.08.2016
HR10.08.2016
IT10.08.2016
LT10.08.2016
LV10.08.2016
MC10.08.2016
NL10.08.2016
PL10.08.2016
RO10.08.2016
SE10.08.2016
SI10.08.2016
SK10.08.2016
SM10.08.2016
BG10.11.2016
NO10.11.2016
GR11.11.2016
IS10.12.2016
PT12.12.2016
Former [2017/37]AT10.08.2016
BE10.08.2016
CZ10.08.2016
DK10.08.2016
EE10.08.2016
ES10.08.2016
FI10.08.2016
HR10.08.2016
IT10.08.2016
LT10.08.2016
LV10.08.2016
NL10.08.2016
PL10.08.2016
RO10.08.2016
SE10.08.2016
SI10.08.2016
SK10.08.2016
SM10.08.2016
BG10.11.2016
NO10.11.2016
GR11.11.2016
IS10.12.2016
PT12.12.2016
Former [2017/32]AT10.08.2016
BE10.08.2016
CZ10.08.2016
DK10.08.2016
EE10.08.2016
ES10.08.2016
FI10.08.2016
HR10.08.2016
IT10.08.2016
LT10.08.2016
LV10.08.2016
NL10.08.2016
PL10.08.2016
RO10.08.2016
SE10.08.2016
SK10.08.2016
SM10.08.2016
BG10.11.2016
NO10.11.2016
GR11.11.2016
IS10.12.2016
PT12.12.2016
Former [2017/13]AT10.08.2016
ES10.08.2016
FI10.08.2016
HR10.08.2016
IT10.08.2016
LT10.08.2016
LV10.08.2016
NL10.08.2016
PL10.08.2016
SE10.08.2016
NO10.11.2016
GR11.11.2016
IS10.12.2016
PT12.12.2016
Former [2017/11]AT10.08.2016
ES10.08.2016
FI10.08.2016
HR10.08.2016
IT10.08.2016
LT10.08.2016
NL10.08.2016
PL10.08.2016
SE10.08.2016
NO10.11.2016
GR11.11.2016
IS10.12.2016
PT12.12.2016
Former [2017/10]FI10.08.2016
HR10.08.2016
IT10.08.2016
LT10.08.2016
NL10.08.2016
PL10.08.2016
SE10.08.2016
NO10.11.2016
IS10.12.2016
Former [2017/09]FI10.08.2016
IT10.08.2016
LT10.08.2016
NL10.08.2016
NO10.11.2016
Former [2017/07]LT10.08.2016
Cited inInternational search[XY]US6061010  (ADAMS ROBERT W [US], et al) [X] 1-6,10-14,16-22,24,27,28 * column 6, lines 13-33; figures 1,5-8 * [Y] 7-9,15,23,25,26;
 [A]EP1453206  (NORTHROP GRUMMAN CORP [US]) [A] 1-28 * figures 1-3 *;
 [A]US2006139193  (MORROW PAUL J [IE], et al) [A] 1-28 * figures 1,2,4,8 *;
 [XY]  - CLARA M ET AL, "A 350MHz low-OSR /spl Delta//spl Sigma/ current-steering DAC with active termination in 0.13 /spl mu/m CMOS", SOLID-STATE CIRCUITS CONFERENCE, 2005. DIGEST OF TECHNICAL PAPERS. ISS CC. 2005 IEEE INTERNATIONAL SAN FRANCISCO, CA, USA FEB. 6-10, 2005, IEEE, PISCATAWAY, NJ, USA LNKD- DOI:10.1109/ISSCC.2005.1493897, (20050101), ISBN 978-0-7803-8904-5, pages 118 - 588VOL.1, XP031173674 [X] 1-7,9-14,16-22,24,27,28 * page 118, column left, paragraph second; figures 6.5.1,6.5.2 * [Y] 8,15,23,25,26

DOI:   http://dx.doi.org/10.1109/ISSCC.2005.1493897
 [Y]  - KHIEM NGUYEN ET AL, "A 108 dB SNR, 1.1 mW Oversampling Audio DAC With A Three-level DEM Technique", IEEE JOURNAL OF SOLID-STATE CIRCUITS, IEEE SERVICE CENTER, PISCATAWAY, NJ, US LNKD- DOI:10.1109/JSSC.2008.2006314, (20081201), vol. 43, no. 12, ISSN 0018-9200, pages 2592 - 2600, XP011238664 [Y] 7-9,15,23,25,26 * figure 1 *

DOI:   http://dx.doi.org/10.1109/JSSC.2008.2006314
 [X]  - KHIEM NGUYEN ET AL, "A 113dB SNR OVERSAMPLING SIGMA-DELTA DAC FOR CD/DVD APPLICATION", 19980801, (19980801), vol. 44, no. 3, pages 1019 - 1023, XP011083707 [X] 1,10,12,21,22,27,28 * figure 2 *
 [A]  - ADAMS R ET AL, "A 113 dB SNR oversampling DAC with segmented noise-shaped scrambling", SOLID-STATE CIRCUITS CONFERENCE, 1998. DIGEST OF TECHNICAL PAPERS. 199 8 IEEE INTERNATIONAL SAN FRANCISCO, CA, USA 5-7 FEB. 1998, NEW YORK, NY, USA,IEEE, US LNKD- DOI:10.1109/ISSCC.1998.672376, (19980205), ISBN 978-0-7803-4344-3, pages 62 - 63,413, XP010278686 [A] 1-28 * figures 1,3 *

DOI:   http://dx.doi.org/10.1109/ISSCC.1998.672376
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.