Title:
【発明の名称】物体検出装置
Document Type and Number:
Japanese Patent JP3362183
Kind Code:
B2
Abstract:
The presence/absence of an object, movement of the object, the direction of movement, the speed of movement, the shape of the object, the quantity of objects and time information related to these factors are detected without installing a means for transmission. An antenna device (1) has a function of receiving radio waves (EW1 to EW24) transmitted by GPS satellites and outputs a detection signal when the reception of the radio waves (EW1 to EW24) transmitted by the GPS satellites is blocked by an object (A). A signal processing device (2) detects the object (A) based upon the detection signal provided by the antenna device (1).
Inventors:
Kenji Nakata
Makoto Yagi
Makoto Yagi
Application Number:
JP50652597A
Publication Date:
January 07, 2003
Filing Date:
July 02, 1996
Export Citation:
Assignee:
Nippon Signal Co., Ltd.
International Classes:
E01F9/00; G01S19/38; G01V3/12; G08G1/01; G08G5/06; (IPC1-7): G01V3/12; E01F11/00; G08G1/01; G08G5/06
Domestic Patent References:
| JP5307075A | ||||
| JP6255487A |
Attorney, Agent or Firm:
Yoshijiro Abe