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Extract from the Register of European Patents

EP About this file: EP0212582

EP0212582 - Demodulation system capable of establishing synchronization in a transient state [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  14.10.1993
Database last updated on 26.06.2024
Most recent event   Tooltip14.10.1993No opposition filed within time limitpublished on 01.12.1993 [1993/48]
Applicant(s)For all designated states
NEC Corporation
7-1, Shiba 5-chome Minato-ku
Tokyo 108-8001 / JP
[N/P]
Former [1987/10]For all designated states
NEC CORPORATION
7-1, Shiba 5-chome Minato-ku
Tokyo / JP
Inventor(s)01 / Yoshida, Yasuharu
c/o NEC Corporation 33-1, Shiba 5-chome
Minato-ku Tokyo / JP
02 / Tahara, Masato
c/o NEC Corporation 33-1, Shiba 5-chome
Minato-ku Tokyo / JP
03 / Yagi, Manabu
c/o NEC Corporation 33-1, Shiba 5-chome
Minato-ku Tokyo / JP
04 / Matsuura, Toru
c/o NEC Corporation 33-1, Shiba 5-chome
Minato-ku Tokyo / JP
[1987/10]
Representative(s)Vossius & Partner Patentanwälte Rechtsanwälte mbB
Siebertstrasse 3
81675 München / DE
[N/P]
Former [1987/10]VOSSIUS & PARTNER
Postfach 86 07 67
D-81634 München / DE
Application number, filing date86111275.314.08.1986
[1987/10]
Priority number, dateJP1985017850115.08.1985         Original published format: JP 17850185
JP1985017850215.08.1985         Original published format: JP 17850285
JP1985017850315.08.1985         Original published format: JP 17850385
JP1985017850415.08.1985         Original published format: JP 17850485
[1987/10]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0212582
Date:04.03.1987
Language:EN
[1987/10]
Type: A3 Search report 
No.:EP0212582
Date:08.02.1989
Language:EN
[1989/06]
Type: B1 Patent specification 
No.:EP0212582
Date:09.12.1992
Language:EN
[1992/50]
Search report(s)(Supplementary) European search report - dispatched on:EP21.12.1988
ClassificationIPC:H04L27/06
[1987/10]
CPC:
H04L27/38 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT,   NL [1987/10]
TitleGerman:Zur Synchronisationsherstellung in einem Übergangszustand geeignetes Demodulationssystem[1987/10]
English:Demodulation system capable of establishing synchronization in a transient state[1987/10]
French:Système de démodulation capable d'établir une synchronisation dans un état transitoire[1987/10]
Examination procedure20.08.1986Examination requested  [1987/10]
25.02.1991Despatch of a communication from the examining division (Time limit: M06)
09.09.1991Reply to a communication from the examining division
23.09.1991Despatch of a communication from the examining division (Time limit: M04)
03.02.1992Reply to a communication from the examining division
03.03.1992Despatch of communication of intention to grant (Approval: No)
05.06.1992Despatch of communication of intention to grant (Approval: later approval)
12.06.1992Communication of intention to grant the patent
27.08.1992Fee for grant paid
27.08.1992Fee for publishing/printing paid
Opposition(s)10.09.1993No opposition filed within time limit [1993/48]
Fees paidRenewal fee
30.08.1988Renewal fee patent year 03
30.08.1989Renewal fee patent year 04
30.08.1990Renewal fee patent year 05
30.08.1991Renewal fee patent year 06
27.08.1992Renewal fee patent year 07
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Documents cited:Search[X]  - IEEE TRANSACTIONS ON COMMUNICATIONS, vol. COM-30, no. 10, October 1982, pages 2385-2390, IEEE, New York, US; Y.MATSUO et al.: "Carrier recovery systems for arbitrarily mapped APK signals"
 [Y]  - THE BELL SYSTEM TECHNICAL JOURNAL, vol. 55, no. 3, March 1976, pages 317-334, American Telephone and Telegraph Company, New York, US; D.D.FALCONER: "Jointly adaptive equalization and carrier recovery in two-dimensional digital communication systems"
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.