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EP0006121
European procedure
Extract from the Register of European Patents
EP About this file: EP0006121
| EP0006121 - Method and arrangement for initiating an adaptive equalizer starting from an unknown data signal in a transmission system utilizing quadrature amplitude modulation [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 19.09.1985 Database last updated on 19.10.2024 | Most recent event Tooltip | 19.09.1985 | No opposition filed within time limit | published on 21.11.1985 [1985/47] | Applicant(s) | For all designated states International Business Machines Corporation New Orchard Road Armonk, NY 10504 / US | [N/P] | Inventor(s) | 01 /
Godard, Dominique Villa "Ormeau de Barnarac" F-06650 Le Rouret / FR | 02 /
Thirion, Philippe Chemin de Saint Paul F-06570 Saint Paul De Vence / FR | [N/P] | Representative(s) | de Pena, Alain Compagnie IBM France Département de la Propriété Intellectuelle 06610 La Gaude / FR | [N/P] |
| Former [1980/06] | de Pena, Alain Compagnie IBM France Département de Propriété Intellectuelle F-06610 La Gaude / FR | Application number, filing date | 79101385.7 | 07.05.1979 | Priority number, date | FR19780018478 | 13.06.1978 Original published format: FR 7818478 | Filing language | FR | Procedural language | FR | Publication | Type: | A1 Application with search report | No.: | EP0006121 | Date: | 09.01.1980 | Language: | FR | [N/P] | Type: | B1 Patent specification | No.: | EP0006121 | Date: | 21.11.1984 | Language: | FR | [1984/47] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 23.10.1979 | Classification | IPC: | H04L25/03, H04L27/00 | [1984/47] | CPC: |
H04L25/0305 (EP,US);
H04L27/38 (EP,US)
| Designated contracting states | DE, FR, GB | Title | German: | Verfahren und Anordnung für die Startprozedur eines sich selbst einstellenden Entzerrers unter Bezugnahme auf ein unbekanntes Signal in einem, die Quadratur-Amplituden-Modulation verwendenden, Übertragungssystem | English: | Method and arrangement for initiating an adaptive equalizer starting from an unknown data signal in a transmission system utilizing quadrature amplitude modulation | French: | Procédé et dispositif pour initialiser un égaliseur adaptatif à partir d'un signal de données inconnu dans un système de transmission utilisant la modulation d'amplitude en quadrature | File destroyed: | 12.06.1999 | Examination procedure | 09.05.1980 | Examination requested [1980/16] | 25.09.1981 | Despatch of a communication from the examining division (Time limit: M04) | 19.01.1982 | Reply to a communication from the examining division | 04.05.1982 | Despatch of a communication from the examining division (Time limit: M06) | 15.10.1982 | Reply to a communication from the examining division | 23.03.1983 | Despatch of a communication from the examining division (Time limit: M04) | 29.07.1983 | Reply to a communication from the examining division | 05.01.1984 | Despatch of communication of intention to grant (Approval: ) | 04.05.1984 | Communication of intention to grant the patent | 21.05.1984 | Fee for grant paid | 21.05.1984 | Fee for publishing/printing paid | Opposition(s) | 22.08.1985 | No opposition filed within time limit [1985/47] | Fees paid | Renewal fee | 15.05.1981 | Renewal fee patent year 03 | 13.05.1982 | Renewal fee patent year 04 | 21.06.1983 | Renewal fee patent year 05 | 23.05.1984 | Renewal fee patent year 06 | Penalty fee | Additional fee for renewal fee | 01.06.1983 | 05 M06 Fee paid on 21.06.1983 |
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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 | FR2335109 [ ] (IBM FRANCE [FR]); | US3978407 [ ] (FORNEY JR GEORGE D, et al) |