Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Device actuated by presence of land vehicle
Patent
1996-11-22
1998-06-16
Carone, Michael J.
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
Device actuated by presence of land vehicle
342 70, G01S 1393
Patent
active
057678030
ABSTRACT:
A radar apparatus includes a radar unit which radiates a radar beam to a target in a forward direction of a vehicle and receives a reflection beam from the target to detect a target vehicle based on the received reflection beam. A scanning control unit moves a beam radiation axis of the radar unit across the target from left to right or vice versa in response to a scanning angle signal. A lane discriminating unit, having an input coupled to the radar unit and an output coupled to the scanning control unit, detects whether a path of the target vehicle is in a lane of the vehicle based on the received reflection beam. The lane discriminating unit supplies a scanning angle signal to the scanning control unit for each of a plurality of scanning angles, so that the beam radiation axis is moved for each of the plurality of scanning angles, detects a relative distance, a relative speed and a reflection beam level based on the received reflection beam after the beam radiation axis is moved, and detects whether one of a plurality of lane discriminating conditions is met by the relative distances, the relative speeds and the reflection beam levels for all the plurality of scanning angles.
REFERENCES:
patent: 3864678 (1975-02-01), Yamanaka et al.
patent: 4158841 (1979-06-01), Wuchner et al.
patent: 4916450 (1990-04-01), Davis
patent: 5266955 (1993-11-01), Izumi et al.
patent: 5467072 (1995-11-01), Michael
patent: 5585798 (1996-12-01), Yoshioka et al.
patent: 5598163 (1997-01-01), Cornic et al.
patent: 5612699 (1997-03-01), Yamada
Carone Michael J.
Montgomery Christopher K.
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Radar apparatus for accurately detecting a path of a target vehi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Radar apparatus for accurately detecting a path of a target vehi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radar apparatus for accurately detecting a path of a target vehi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1730829