| 20110169663 | DEVICE AND A METHOD FOR DETECTING MOTOR VEHICLES AND THEIR APPROACH ANGLES - A device and a method for detecting motor vehicles and their approach angles by passive or active transponders which are provided on the motor vehicles is described, which can be triggered by a transceiver device to transfer information stored in the transponders. It is recommended that on a motor vehicle at least two transponders are arranged with a restricted emission angle range and a different emission direction, and that information suitable for identifying the motor vehicle is stored in the transponders. | 07-14-2011 |
