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EP0490275
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EP About this file: EP0490275
| EP0490275 - System and method for compensation of in-phase and quadrature phase and gain imbalance [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 01.09.1995 Database last updated on 21.03.2026 | Most recent event Tooltip | 01.09.1995 | Application deemed to be withdrawn | published on 25.10.1995 [1995/43] | Applicant(s) | For all designated states Hughes Aircraft Company 7200 Hughes Terrace P.O. Box 45066 Los Angeles, California 90045-0066 / US | [N/P] |
| Former [1992/27] | For all designated states Hughes Aircraft Company 7200 Hughes Terrace P.O. Box 45066 Los Angeles, California 90045-0066 / US | ||
| Former [1992/25] | For all designated states HUGHES AIRCRAFT COMPANY P.O. Box 80028 Los Angeles, CA 90080-0028 / US | Inventor(s) | 01 /
Conrad, John C. 1752 Cannes Drive Thousand Oaks, California 91362 / US | [1992/25] | Representative(s) | Grünecker Patent- und Rechtsanwälte PartG mbB Leopoldstrasse 4 80802 München / DE | [N/P] |
| Former [1992/25] | Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät Maximilianstrasse 58 D-80538 München / DE | Application number, filing date | 91120913.8 | 05.12.1991 | [1992/25] | Priority number, date | US19900624951 | 10.12.1990 Original published format: US 624951 | [1992/25] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0490275 | Date: | 17.06.1992 | Language: | EN | [1992/25] | Type: | A3 Search report | No.: | EP0490275 | Date: | 05.08.1992 | Language: | EN | [1992/32] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 17.06.1992 | Classification | IPC: | G01S7/40, H03D1/22, G01S13/58 | [1992/25] | CPC: |
H03D1/2245 (EP,US);
G01S13/58 (EP,US);
G01S7/352 (EP,US);
G01S7/358 (EP,US);
G01S7/4021 (EP,US)
| Designated contracting states | DE, ES, FR, GB, GR, IT, NL, SE [1992/25] | Title | German: | Verfahren und Vorrichtung zum Kompensieren des Phasen- und Verstärkungsungleichgewichts zwischen zwei um Po Grad verschobenen Signalwegen | [1992/25] | English: | System and method for compensation of in-phase and quadrature phase and gain imbalance | [1992/25] | French: | Système et méthode pour compenser le désquilibre en gain et phase de deux voies en quadrature | [1992/25] | File destroyed: | 03.03.2001 | Examination procedure | 01.07.1992 | New documents discovered [1992/34] | 29.01.1993 | Examination requested [1993/13] | 16.08.1994 | Despatch of a communication from the examining division (Time limit: M08) | 28.02.1995 | Application deemed to be withdrawn, date of legal effect [1995/43] | 29.05.1995 | Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time [1995/43] | Fees paid | Renewal fee | 18.11.1993 | Renewal fee patent year 03 | 14.11.1994 | Renewal fee patent year 04 |
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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 | IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS. vol. 17, no. 1, January 1981, NEW YORK US pages 131 - 137; F.E. CHURCHILL ET AL.: 'The correction of I and Q errors in a coherent processor' | HEWLETT-PACKARD JOURNAL. vol. 39, no. 3, June 1988, PALO ALTO US pages 18 - 25; K. KAFADAR: 'Statistical calibration of a vector demodulator' |