DEVICE FOR DETECTING THE PRESENCE OF A USER BY A VEHICLE
First Claim
1. A device for detecting the presence of an object, the device comprising at least one detection member which has an associated physical quantity that varies according to an environment in which said at least one detection member is located, wherein:
- the physical quantity delivers a variable reference level corresponding to the absence of the object;
wherein the device further comprises;
a saving device for;
saving, during the emission of a low-frequency signal, a value of the reference level measured before the emission of said low-frequency signal.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a device for detecting (CAPT) the presence of an object, that comprises at least one detection member (EA, EB) to which is associated a physical value that varies based on the environment in which said detection member (EA, EB) is located. The invention is characterised in that the physical value provides a variable reference level corresponding to the absence of an object and in that it further comprises a saving device (LOGIC) for saving, upon the emission of a low-frequency signal, a value of the reference level measured before the emission of said low-frequency signal.
24 Citations
42 Claims
-
1. A device for detecting the presence of an object, the device comprising at least one detection member which has an associated physical quantity that varies according to an environment in which said at least one detection member is located, wherein:
-
the physical quantity delivers a variable reference level corresponding to the absence of the object; wherein the device further comprises; a saving device for; saving, during the emission of a low-frequency signal, a value of the reference level measured before the emission of said low-frequency signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
-
-
36. A unit for detecting the presence of an object, comprising:
-
a detection device comprising; at least one detection member which has an associated physical quantity that varies according to an environment in which said at least one detection member is located, wherein the physical quantity delivers a variable reference level corresponding to the absence of the object; a saving device for saving, during the emission of a low-frequency signal, a value of the reference level measured before the emission of said low-frequency signal; and an antenna for emitting a low-frequency signal.
-
-
37. A method for detecting the presence of an object by means of a physical quantity, associated with a detection member, which varies according to an environment in which said detection member is located, the method comprising:
-
delivering a variable reference level of the physical quantity corresponding to the absence of the object; and saving, during the emission of a low-frequency signal, a value of the reference level measured before the emission of said low-frequency signal. - View Dependent Claims (38, 39, 40, 41)
-
-
42. A computer program product comprising one or more sequences of instructions that are executed by an information processing unit, the execution of said sequences of instructions resulting in the execution of a method for detecting the presence of an object by means of a physical quantity, associated with a detection member, which varies according to an environment in which said detection member is located, the method comprising:
-
delivering a variable reference level of the physical quantity corresponding to the absence of the object; and saving, during the emission of a low-frequency signal, a value of the reference level measured before the emission of said low-frequency signal.
-
Specification