Patent ID: 7499375
Filing Date: 2009-03-03
Classification: G01S,Y10S

Abstract:
1. A method for monitoring a space or a vicinity of an automotive vehicle for a presence of a foreign body or an obstacle using a monitoring device, the monitoring device having at least one transmitter and at least one first and one second receiving device, wherein the second receiving device is spaced further apart from the transmitter than the first receiving device, the method comprising the steps of: a) receiving at least one second received signal from the second receiving device; b) evaluating at least one part of the second received signal for parasitic signal portions which indicate a presence of a parasitic signal source in the space; and c) monitoring or evaluating a monitoring result only when no parasitic signal portion has been detected in step b), wherein the part of the second signal evaluated for detection of the parasitic signal portions is received before a threshold time represented by a spatial distance between the second receiving device and the transmitter.