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Extract from the Register of European Patents

EP About this file: EP0717520

EP0717520 - CDMA communication system in which interference removing capability is improved [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  11.08.2006
Database last updated on 24.04.2024
Most recent event   Tooltip25.07.2008Change - representativepublished on 27.08.2008  [2008/35]
Applicant(s)For all designated states
NEC Corporation
7-1, Shiba 5-chome Minato-ku
Tokyo 108-8001 / JP
[N/P]
Former [2005/40]For all designated states
NEC CORPORATION
7-1, Shiba 5-chome, Minato-ku
Tokyo / JP
Former [1996/25]For all designated states
NEC CORPORATION
7-1, Shiba 5-chome Minato-ku
Tokyo / JP
Inventor(s)01 / Yoshida, Shousei, c/o NEC Corporation
7-1, Shiba 5-chome, Minato-ku
Tokyo / JP
02 / Ushirokawa, Akihisa, c/o NEC Corporation
7-1, Shiba 5-chome, Minato-ku
Tokyo / JP
[1996/25]
Representative(s)Vossius & Partner Patentanwälte Rechtsanwälte mbB
Siebertstrasse 3
81675 München / DE
[N/P]
Former [2008/35]Vossius & Partner
Siebertstrasse 3
81675 München / DE
Former [1996/25]VOSSIUS & PARTNER
Siebertstrasse 4
81675 München / DE
Application number, filing date95119441.408.12.1995
[1996/25]
Priority number, dateJP1994030727512.12.1994         Original published format: JP 30727594
[1996/25]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0717520
Date:19.06.1996
Language:EN
[1996/25]
Type: A3 Search report 
No.:EP0717520
Date:09.09.1998
[1998/37]
Type: B1 Patent specification 
No.:EP0717520
Date:05.10.2005
Language:EN
[2005/40]
Search report(s)(Supplementary) European search report - dispatched on:EP23.07.1998
ClassificationIPC:H04J13/00, H04B1/707
[1996/25]
CPC:
H04J13/0003 (EP,US); H04B1/7097 (EP,US)
Designated contracting statesDE,   GB,   SE [1996/25]
TitleGerman:CDMA Kommunikationssystem, in dem die Fähigkeit zur Interferenzbeseitigung verbessert ist[1996/25]
English:CDMA communication system in which interference removing capability is improved[1996/25]
French:Système de communication à AMRC avec capacité d'élimination d'interférence améliorée[1996/25]
Examination procedure28.07.1998Examination requested  [1998/39]
11.10.2002Despatch of a communication from the examining division (Time limit: M06)
11.04.2003Reply to a communication from the examining division
06.05.2003Despatch of a communication from the examining division (Time limit: M06)
17.11.2003Reply to a communication from the examining division
14.02.2005Communication of intention to grant the patent
02.08.2005Fee for grant paid
02.08.2005Fee for publishing/printing paid
Opposition(s)06.07.2006No opposition filed within time limit [2006/37]
Fees paidRenewal fee
30.12.1997Renewal fee patent year 03
29.12.1998Renewal fee patent year 04
30.12.1999Renewal fee patent year 05
29.12.2000Renewal fee patent year 06
28.12.2001Renewal fee patent year 07
30.12.2002Renewal fee patent year 08
31.12.2003Renewal fee patent year 09
31.12.2004Renewal fee patent year 10
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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  TooltipSE05.01.2006
[2006/27]
Documents cited:Search[X]US5327455  (DE GAUDENZI RICCARDO [NL], et al) [X] 1-18 * abstract * * column 2, line 29 - line 48 * * column 2, line 55 - line 64 * * column 3, line 26 - column 5, line 14 * * column 6, line 19 - line 34 *;
 [X]  - GAUDENZI DE R ET AL, "SYNCHRONOUS TRELLIS-CODED CDMA: ANALYSIS AND SYSTEM PERFORMANCE", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC), GENEVA, MAY 23 - 26, 1993, INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, (19930523), VOL. 3, no. -, pages 1444 - 1448, XP000448379 [X] 1-18 * page 1444 - page 1446 *

DOI:   http://dx.doi.org/10.1109/ICC.1993.397526
 [X]  - QING ZHANG ET AL, "PERFORMANCE OF TRELLIS-CODED QPSK/SS SYSTEMS WITH LONG PN SEQUENCE COMBATTING MULTIPLE-ACCESS AND TONE INTERFERENCES", PROCEEDINGS TENCON'93, IEEE REGION 10, CONFERENCE ON COMPUTER, COMMUNICATION, CONTROL AND POWEER ENGINEERING, BEIJING, CHINA, (19931019), vol. 3, pages 83 - 86, XP002069241 [X] 1-18 * abstract * * page 83, column 2, line 1 - page 84, column 1, line 15 *

DOI:   http://dx.doi.org/10.1109/TENCON.1993.327928
 [A]  - YUKIJI YAMAUCHI ET AL, "IMPROVEMENT OF MULTIPLE ACCESS CAPABILITY IN M-ARY-FSK/DIRECT-SEQUENCE SSMA", ELECTRONICS AND COMMUNICATIONS IN JAPAN, PART 1, (198603), vol. 69, no. 3, pages 86 - 92, XP002069254 [A] 1-18 * summary *; page 87, column 1, line 1 - page 89, column 1, line 4 *
 [DA]  - YOSHIDA S ET AL, "DS/CDMA ADAPTIVE INTERFERENCE CANCELLER ON DIFFERENTIAL DETECTION IN FAST FADING CHANNEL", PROCEEDINGS OF THE VEHICULAR TECHNOLOGY CONFERENCE, STOCKHOLM, JUNE 8 - 10, 1994, INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, (19940608), VOL. 2, no. CONF. 44, pages 780 - 784, XP000496782 [DA] 1-18 * the whole document *
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