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EP0176089
European procedure
Extract from the Register of European Patents
EP About this file: EP0176089
| EP0176089 - Multiple quadrature-phase amplitude modulating system capable of reducing a peak amplitude [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 07.01.1993 Database last updated on 12.07.2024 | Most recent event Tooltip | 07.01.1993 | No opposition filed within time limit | published on 24.02.1993 [1993/08] | Applicant(s) | For all designated states NEC Corporation 7-1, Shiba 5-chome Minato-ku Tokyo 108-8001 / JP | [N/P] |
| Former [1986/14] | For all designated states NEC CORPORATION 7-1, Shiba 5-chome Minato-ku Tokyo / JP | Inventor(s) | 01 /
Uchibori, Junichi c/o Nec Corporation 33-1, Shiba 5-chome Minato-ku Tokyo / JP | 02 /
Koizumi, Yutaka c/o Nec Corporation 33-1, Shiba 5-chome Minato-ku Tokyo / JP | 03 /
Ryu, Toshihiko c/o Nec Corporation 33-1, Shiba 5-chome Minato-ku Tokyo / JP | [1986/14] | Representative(s) | Vossius & Partner Patentanwälte Rechtsanwälte mbB Siebertstrasse 3 81675 München / DE | [N/P] |
| Former [1986/14] | VOSSIUS & PARTNER Postfach 86 07 67 D-81634 München / DE | Application number, filing date | 85112137.6 | 24.09.1985 | [1986/14] | Priority number, date | JP19840199980 | 25.09.1984 Original published format: JP 19998084 | [1986/14] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0176089 | Date: | 02.04.1986 | Language: | EN | [1986/14] | Type: | A3 Search report | No.: | EP0176089 | Date: | 03.02.1988 | Language: | EN | [1988/05] | Type: | B1 Patent specification | No.: | EP0176089 | Date: | 04.03.1992 | Language: | EN | [1992/10] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 16.12.1987 | Classification | IPC: | H04L27/34 | [1992/10] | CPC: |
H04L27/3411 (EP,US)
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| Former IPC [1986/14] | H04L27/02 | Designated contracting states | DE, FR, IT, NL [1986/14] | Title | German: | Vielfach-Amplituden im Phasenquadratur-Modulationssystem, fähig zur Abschwächung eines Spitzenwertes | [1986/14] | English: | Multiple quadrature-phase amplitude modulating system capable of reducing a peak amplitude | [1986/14] | French: | Système de modulation d'amplitude multiple en quadrature de phase capable de réduire une amplitude de crête | [1986/14] | Examination procedure | 24.09.1985 | Examination requested [1986/14] | 05.12.1989 | Despatch of a communication from the examining division (Time limit: M06) | 15.06.1990 | Reply to a communication from the examining division | 18.07.1990 | Despatch of a communication from the examining division (Time limit: M06) | 17.01.1991 | Reply to a communication from the examining division | 22.03.1991 | Despatch of communication of intention to grant (Approval: No) | 19.08.1991 | Despatch of communication of intention to grant (Approval: later approval) | 29.08.1991 | Communication of intention to grant the patent | 09.12.1991 | Fee for grant paid | 09.12.1991 | Fee for publishing/printing paid | Opposition(s) | 05.12.1992 | No opposition filed within time limit [1993/08] | Fees paid | Renewal fee | 29.09.1987 | Renewal fee patent year 03 | 29.09.1988 | Renewal fee patent year 04 | 28.09.1989 | Renewal fee patent year 05 | 27.09.1990 | Renewal fee patent year 06 | 30.09.1991 | Renewal 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 | [X] - PROCEEDINGS OF THE 1984 INTERNATIONAL ZURICH SEMINAR ON DIGITAL COMMUNICATIONS, Zurich, 6th-8th March 1984, pages 113-120, IEEE, New York, US; J.D. BROWNLIE et al.: "Duplex transmission at 4800 and 9600 BIT/S on the general switched telephone network and the use of channel coding with a partitioned signal constellation" | by applicant | - J. D. BROWNLIE, THE PROCEEDINGS OF THE 1984 INTERNATIONAL ZURICH SEMINAR ON DIGITAL COMMUNICATIONS, (19840306), pages 113 - 120 |