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
Register Forum

2022.02.11

More...
blank News flashes

News flashes

New version of the European Patent Register - SPC information for Unitary Patents.

2024-03-06

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP0328318

EP0328318 - Delta-sigma modulator [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  29.04.1995
Database last updated on 13.07.2024
Most recent event   Tooltip03.01.1996Lapse of the patent in a contracting state
New state(s): GB
published on 24.01.1996 [1996/04]
Applicant(s)For all designated states
FUJITSU LIMITED
1015, Kamikodanaka, Nakahara-ku Kawasaki-shi
Kanagawa 211 / JP
For all designated states
FUJITSU TEN, LTD.
2-28, Goshodori 1-chome, Hyogo-ku
Kobe-shi, Hyogo, 652 / JP
[N/P]
Former [1989/33]For all designated states
FUJITSU LIMITED
1015, Kamikodanaka, Nakahara-ku
Kawasaki-shi, Kanagawa 211 / JP
For all designated states
FUJITSU TEN, LTD.
2-28, Goshodori 1-chome, Hyogo-ku
Kobe-shi, Hyogo, 652 / JP
Inventor(s)01 / Endo, Seiji
1124-1, Kamikodanaka Nakahara-ku
Kawasaki-shi Kanagawa, 211 / JP
02 / Kobayashi, Osamu
1472-70, Takatacho Kohoku-ku
Yokohama-shi Kanagawa, 223 / JP
03 / Kamimura, Masatsugu
1-1-42, Misakihonmachi Hyogo-ku
Kobe-shi Hyogo, 652 / JP
[1989/33]
Representative(s)Fane, Christopher Robin King, et al
Haseltine Lake & Co., Imperial House, 15-19 Kingsway
London WC2B 6UD / GB
[N/P]
Former [1989/33]Fane, Christopher Robin King, et al
HASELTINE LAKE & CO. Hazlitt House 28 Southampton Buildings Chancery Lane
London, WC2A 1AT / GB
Application number, filing date89301064.503.02.1989
[1989/33]
Priority number, dateJP1988002929110.02.1988         Original published format: JP 2929188
[1989/33]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0328318
Date:16.08.1989
Language:EN
[1989/33]
Type: A3 Search report 
No.:EP0328318
Date:14.11.1990
Language:EN
[1990/46]
Type: B1 Patent specification 
No.:EP0328318
Date:29.06.1994
Language:EN
[1994/26]
Search report(s)(Supplementary) European search report - dispatched on:EP26.09.1990
ClassificationIPC:H04B14/04, H03M3/02
[1989/33]
CPC:
H04B14/046 (EP,US); H03M3/02 (KR); H03M3/418 (EP,US)
Designated contracting statesDE,   FR,   GB [1989/33]
TitleGerman:Delta-sigma-Modulator[1989/33]
English:Delta-sigma modulator[1989/33]
French:Modulateur delta-sigma[1989/33]
Examination procedure28.12.1990Examination requested  [1991/10]
26.08.1993Despatch of communication of intention to grant (Approval: Yes)
03.01.1994Communication of intention to grant the patent
28.03.1994Fee for grant paid
28.03.1994Fee for publishing/printing paid
Opposition(s)30.03.1995No opposition filed within time limit [1995/25]
Fees paidRenewal fee
02.01.1991Renewal fee patent year 03
24.01.1992Renewal fee patent year 04
28.01.1993Renewal fee patent year 05
27.01.1994Renewal fee patent year 06
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  TooltipDE30.09.1994
GB03.02.1995
[1996/04]
Former [1995/15]DE30.09.1994
Documents cited:Search[Y]EP0084353  (INT STANDARD ELECTRIC CORP [US]);
 [Y]EP0190694  (NIPPON TELEGRAPH & TELEPHONE [JP])
 [XP]  - Proceedings of the IEEE 1988 CUSTOM INTEGRATED CIRCUITS CONFERENCE May 1988, NEW YORK pages 2121 - 2124; L.LONGO et al.: "A 13 bit ISDN-band oversampled ADC using two-stage third order noise shaping"
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.