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Extract from the Register of European Patents

EP About this file: EP0538903

EP0538903 - Frequency synthesis using frequency controlled carrier modulated with PLL feedback signal [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  22.01.1999
Database last updated on 28.05.2024
Most recent event   Tooltip22.01.1999No opposition filed within time limitpublished on 10.03.1999 [1999/10]
Applicant(s)For all designated states
NEC Corporation
7-1, Shiba 5-chome Minato-ku
Tokyo 108-8001 / JP
[N/P]
Former [1993/17]For all designated states
NEC CORPORATION
7-1, Shiba 5-chome Minato-ku
Tokyo / JP
Inventor(s)01 / Ichihara, Masaki, c/o NEC Corporation
7-1, Shiba 5-chome, Minato-ku
Tokyo / JP
[1993/17]
Representative(s)Vossius & Partner Patentanwälte Rechtsanwälte mbB
Siebertstrasse 3
81675 München / DE
[N/P]
Former [1995/52]VOSSIUS & PARTNER
Postfach 86 07 67
D-81634 München / DE
Former [1993/17]VOSSIUS & PARTNER
P.O. Box 86 07 67
D-81634 München / DE
Application number, filing date92118265.526.10.1992
[1993/17]
Priority number, dateJP1991028000425.10.1991         Original published format: JP 28000491
[1993/17]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0538903
Date:28.04.1993
Language:EN
[1993/17]
Type: B1 Patent specification 
No.:EP0538903
Date:18.03.1998
Language:EN
[1998/12]
Search report(s)(Supplementary) European search report - dispatched on:EP24.02.1993
ClassificationIPC:H03L7/18
[1993/17]
CPC:
H03L7/185 (EP,US); H03L7/1806 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT,   NL,   SE [1993/17]
TitleGerman:Frequenzsynthese unter Verwendung eines frequenzgesteuerten, mit einem PLL-Rückkopplungssignal modulierten Trägers[1993/17]
English:Frequency synthesis using frequency controlled carrier modulated with PLL feedback signal[1993/17]
French:Synthèse de fréquence utilisant une porteuse contrôlée en fréquence et modulée par le signal de réaction d'une boucle à verrouillage de phase[1993/17]
Examination procedure10.03.1993Examination requested  [1993/19]
29.05.1996Despatch of a communication from the examining division (Time limit: M06)
09.12.1996Reply to a communication from the examining division
19.02.1997Despatch of communication of intention to grant (Approval: No)
01.09.1997Despatch of communication of intention to grant (Approval: later approval)
19.09.1997Communication of intention to grant the patent
30.10.1997Fee for grant paid
30.10.1997Fee for publishing/printing paid
Opposition(s)19.12.1998No opposition filed within time limit [1999/10]
Fees paidRenewal fee
28.10.1994Renewal fee patent year 03
30.10.1995Renewal fee patent year 04
29.10.1996Renewal fee patent year 05
30.10.1997Renewal fee patent year 06
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Documents cited:Search[X]US4145667  (MESSERSCHMITT DAVID G);
 [YD]US4965533  (GILMORE ROBERT P [US]);
 [Y]DE2227698  (DASSAULT ELECTRONIQUE)
 [A]  - PROCEEDINGS OR THE 41ST ANNUAL FREQUENCY SYMPOSIUM 1 May 1987, PHILADELPHIA , US pages 524 - 526 J. BERENGUER ET. AL. 'IMPROVEMENT OF THE PULL-IN RANGE AND ACQUISITION TIME OF A MICROWAVE P.L.L. SYSTEM BY INJECTION LOCKING THE V.C.O.'
 [A]  - FUNK-TECHNIK no. 21, 1 November 1974, HEIDELBERG,DE pages 757 - 758 D. BRIGGMANN 'VIELKANALOSZILLATOR FUR DAS 2-M-BAND IN CMOS-TECHNIK'
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.