Method and Device for Sensing a Body
First Claim
Patent Images
1. A method for sensing a body comprising:
- measuring an impedance of a body occupying a seat over a plurality of frequencies;
comparing the measured impedance of the body with a predefined body model; and
determining whether the predefined body model corresponds to the measured impedance of the body.
1 Assignment
0 Petitions
Accused Products
Abstract
In an embodiment of the present invention, a method for sensing a body is disclosed. The method includes measuring an impedance of a body occupying a seat over a plurality of frequencies and comparing the measured impedance of the body with a predefined body model. The method also includes determining whether the predefined body model corresponds to the measured impedance of the body.
31 Citations
30 Claims
-
1. A method for sensing a body comprising:
-
measuring an impedance of a body occupying a seat over a plurality of frequencies; comparing the measured impedance of the body with a predefined body model; and determining whether the predefined body model corresponds to the measured impedance of the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A system for determining the presence of a body, the system comprising:
-
an impedance measurement unit comprising a plurality of electrodes, the impedance measurement unit configured to output a measured body impedance over a plurality of frequencies; and a comparison unit comprising a first input coupled to an output of the impedance measurement unit, a second input coupled to a body impedance model, and an output configured to indicate a correlation between the body impedance model and the measured body impedance. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. A method for sensing a presence of a human body in a car seat comprising:
-
measuring an impedance of a car seat over a plurality of frequencies; deriving a measured impedance based on the measuring; correlating the measured impedance with a pre-defined human body model defined over at least two of the plurality of frequencies, the pre-defined human body model comprising a dispersive impedance; and based on the correlating, determining whether the measured impedance matches the pre-defined human body model. - View Dependent Claims (28, 29)
-
-
30. A system for sensing a presence of a human body in a car seat, the system comprising:
-
an impedance measurement device comprising a plurality of electrodes, the impedance measurement device configured to output a measured car seat impedance over a plurality of frequencies; and a comparison device comprising a first input coupled to the output of the impedance measurement device, a second input coupled to a human body impedance model, and an output configured to indicate whether the measured car seat impedance is correlated to the human body impedance model.
-
Specification