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Extract from the Register of European Patents

EP About this file: EP0395368

EP0395368 - Quadrature phase demodulator capable of operating under a wide input dynamic range [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  20.06.1997
Database last updated on 18.05.2024
Most recent event   Tooltip20.06.1997No opposition filed within time limitpublished on 06.08.1997 [1997/32]
Applicant(s)For all designated states
NEC Corporation
7-1, Shiba 5-chome Minato-ku
Tokyo 108-8001 / JP
[N/P]
Former [1990/44]For all designated states
NEC CORPORATION
7-1, Shiba 5-chome Minato-ku
Tokyo / JP
Inventor(s)01 / Tomita, Hideho, c/o NEC Corporation
7-1, Shiba 5-chome, Minato-ku
Tokyo / JP
[1997/11]
Former [1990/44]01 / Tomita, Mideho, c/o NEC Corporation
7-1, Shiba 5-chome, Minato-ku
Tokyo / JP
Representative(s)Jackson, David Spence, et al
Reddie & Grose LLP
16 Theobalds Road
London
WC1X 8PL / GB
[N/P]
Former [1990/44]Jackson, David Spence, et al
REDDIE & GROSE 16, Theobalds Road
London, WC1X 8PL / GB
Application number, filing date90304414.725.04.1990
[1990/44]
Priority number, dateJP1989010623025.04.1989         Original published format: JP 10623089
[1990/44]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0395368
Date:31.10.1990
Language:EN
[1990/44]
Type: A3 Search report 
No.:EP0395368
Date:28.08.1991
Language:EN
[1991/35]
Type: B1 Patent specification 
No.:EP0395368
Date:14.08.1996
Language:EN
[1996/33]
Search report(s)(Supplementary) European search report - dispatched on:EP09.07.1991
ClassificationIPC:H03D1/22
[1990/44]
CPC:
H03D1/2245 (EP,US)
Designated contracting statesDE,   GB,   NL,   SE [1990/44]
TitleGerman:Quadratur-Phasendemodulator für einen breiten dynamischen Bereich[1990/44]
English:Quadrature phase demodulator capable of operating under a wide input dynamic range[1990/44]
French:Démodulateur de phase en quadrature capable de fonctionner dans une large gamme dynamique[1990/44]
Examination procedure17.05.1990Examination requested  [1990/44]
18.04.1994Despatch of a communication from the examining division (Time limit: M06)
28.10.1994Reply to a communication from the examining division
08.12.1994Despatch of a communication from the examining division (Time limit: M04)
18.04.1995Reply to a communication from the examining division
27.07.1995Despatch of communication of intention to grant (Approval: Yes)
27.09.1995Communication of intention to grant the patent
20.12.1995Fee for grant paid
20.12.1995Fee for publishing/printing paid
Opposition(s)15.05.1997No opposition filed within time limit [1997/32]
Fees paidRenewal fee
22.04.1992Renewal fee patent year 03
24.04.1993Renewal fee patent year 04
22.04.1994Renewal fee patent year 05
27.04.1995Renewal fee patent year 06
26.04.1996Renewal fee patent year 07
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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.
Documents cited:Search[A]JP62216505  ;
 [A]JP63142708  ;
 [AP]EP0320918  (SIEMENS AG [DE])
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 12, no. 77 (E-589), 10th March 1988; & JP-A-62 216 505 (TOSHIBA CORP.) 24-09-1987, & JP62216505 A 00000000
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 12, no. 402 (E-673), 25th October 1988; & JP-A-63 142 708 (NEC CORP.) 15-06-1988, & JP63142708 A 00000000
 [A]  - IEEE 1988 INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS, DIGEST OF TECHNICAL PAPERS, Rosemont, Illinois, 8th - 10th June 1988, pages 22-23, IEEE, New York, US; M. HAGIWARA et al.: "DSP type coherent DSB signal detector using new phase synchronizer"
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.