(19)
(11) EP 0 795 761 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
17.08.2005 Bulletin 2005/33

(45) Mention of the grant of the patent:
15.06.2005 Bulletin 2005/24

(21) Application number: 97100604.4

(22) Date of filing: 16.01.1997
(51) International Patent Classification (IPC)7: G01S 7/03, G01S 13/34, G01S 13/93, G01S 7/35, G01S 7/36

(54)

Radar apparatus with a simplified construction

Radaranlage mit vereinfachter Bauart

Appareil radar à construction simplifiée

(84) Designated Contracting States:
DE FR GB

(30) Priority: 12.03.1996 JP 5512396

(43) Date of publication of application:
17.09.1997 Bulletin 1997/38

(60) Divisional application:
03004829.2 / 1326089

(73) Proprietors:
  • FUJITSU LIMITED
    Kawasaki-shi, Kanagawa 211-8588 (JP)
  • Fujitsu Ten Limited
    Kobe, Hyogo 652 (JP)

(72) Inventors:
  • Okubo, Naofumi, c/o Fujitsu Limited
    Kawasaki-shi, Kanagawa, 211 (JP)
  • Ninomiya, Teruhisa, c/o Fujitsu Limited
    Kawasaki-shi, Kanagawa, 211 (JP)
  • Saito, Tamio c/o Fujitsu Limited
    Kawasaki-shi, Kanagawa, 211 (JP)
  • Isaji, Osamu c/o Fujitsu Ten Limited
    Hyogo-ku, Kobe, Hyogo, 652 (JP)

(74) Representative: von Fischern, Bernhard, Dipl.-Ing. et al
Hoffmann - Eitle, Patent- und Rechtsanwälte, Arabellastrasse 4
81925 München
81925 München (DE)


(56) References cited: : 
EP-A- 0 202 984
US-A- 3 680 085
US-A- 5 381 153
 GB-A- 2 165 414
US-A- 4 739 330
   
  • SAITO T ET AL: "AN FM-CW RADAR MODULE WITH FRONT-END SWITCHING HETERODYNE RECEIVER" INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST (MTT-S), ALBUQUERQUE, JUNE 1 - 5, 1992, vol. 2, 1 June 1992, pages 713-716, XP000343419 REID D W
  • M. I. SKOLNIK: "Introduction to Radar Systems" 1980 , MCGRAW-HILL , SINGAPORE XP002083437 * Section 3.3 "Frequency-Modulated CW Radar", subsection "Range and Doppler Measurement" * * page 91, line 3 - line 5 *
  • MCGREGOR J A ET AL: "SWITCHING SYSTEM FOR SINGLE ANTENNA OPERATION OF AN S-BAND FMCW RADAR" IEE PROCEEDINGS: RADAR, SONAR & NAVIGATION, vol. 141, no. 4, 1 August 1994, pages 241-248, XP000458143
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).