Vehicle window position sensor
First Claim
1. Apparatus for detecting a window open condition, said apparatus comprising:
- a first photoelectric cell mountable to the window for providing a reference output signal independent of the window open condition;
a second photoelectric cell mountable to the window and providing a signal having a first characteristic if the window is open and a second characteristic if the window is not open;
comparison means for comparing the reference output signal with the signal from the second photoelectric cell, said comparison being indicative of the open condition of the window; and
indicator means, responsive to said comparison means, for indicating if the vehicle window is in the open condition.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus (10) for detecting a window open condition comprises a first photoelectric cell (60) mountable to the window (20) for providing a reference output signal (61) independent of the window open condition. The apparatus (10) also comprises a second photoelectric cell (62) mountable to the window and providing a signal (63) having a first characteristic if the window (20) is open and a second characteristic if the window is not open. The apparatus (10) further comprises comparison means (82) for comparing the reference output signal (61) with the signal from the second photoelectric cell (63). The comparison is indicative of the open condition of the window. The apparatus (10) comprises means (88) responsive to the comparison means (82) for indicating if the vehicle window (20) is in the open condition.
-
Citations
13 Claims
-
1. Apparatus for detecting a window open condition, said apparatus comprising:
-
a first photoelectric cell mountable to the window for providing a reference output signal independent of the window open condition;
a second photoelectric cell mountable to the window and providing a signal having a first characteristic if the window is open and a second characteristic if the window is not open;
comparison means for comparing the reference output signal with the signal from the second photoelectric cell, said comparison being indicative of the open condition of the window; and
indicator means, responsive to said comparison means, for indicating if the vehicle window is in the open condition. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. Apparatus for detecting a window open condition, said apparatus comprising:
-
a first photoelectric cell mountable to the window for providing a reference output signal independent of the window open condition;
a second photoelectric cell mountable to the window and providing a signal having a first characteristic if the window is open and a second characteristic if the window is not open;
comparison means for comparing the reference output signal with the signal from the second photoelectric cell, said comparison being indicative of the open condition of the window; and
indicator means, responsive to said comparison means, for indicating if the vehicle window is in the open condition;
wherein said window is molded or cast from glass and said first photoelectric cell and said second photoelectric cell and said comparison means and said means responsive are provided as part of a sensor assembly molded or cast with said window.
-
-
9. Apparatus for association with a window movable between an open condition and a closed condition, a first amount of light striking the window when the window is in the open condition and a second amount of light striking the window when the window is in the closed condition, said apparatus comprising:
-
detector means mounted to the window for detecting the amount of light striking the window; and
determining means responsive to said detector means for determining, in response to the amount of detected light, if the vehicle window is in the open condition. - View Dependent Claims (10, 11, 12, 13)
-
Specification