| Patent application number | Description | Published |
|---|
| 20090059405 | INTERIOR REARVIEW MIRROR SYSTEM WITH COMPASS - An interior rearview mirror system includes an interior rearview mirror assembly and a compass sensor. A physical mount mounts the compass sensor at the reflective element whereby the compass sensor adjusts in tandem with adjustment of the reflective element. A control receives at least one signal indicative of at least one magnetic field sensed by the compass sensor. The control determines a directional heading of the vehicle based on the signal or signals and generates a signal indicative of the directional heading of the vehicle. The control may automatically compensate for adjustment of the compass sensor in tandem with adjustment of the reflective element. | 03-05-2009 |
| 20090144996 | INTERIOR REARVIEW MIRROR SYSTEM WITH COMPASS - An interior rearview mirror system for a vehicle includes an interior rearview mirror assembly, a casing having a reflective element, a compass sensor and a control. The compass sensor is disposed within the mirror casing and has a first magnetoresponsive sensing element and a second magnetoresponsive sensing element. The control receives a first signal indicative of a magnetic field sensed by the first magnetoresponsive sensing element and a second signal indicative of a magnetic field sensed by the second magnetoresponsive sensing element. The control determines that the casing is adjusted by an occupant of the vehicle in response to a change in the first and second signals being indicative of an abrupt movement of the casing about the mounting structure by an occupant of the vehicle. The control is operable to enter a rapid compensating mode to compensate for the mirror adjustment. | 06-11-2009 |
| 20090231741 | INTERIOR REARVIEW MIRROR SYSTEM WITH COMPASS - An interior rearview mirror system for a vehicle includes an interior rearview mirror assembly having a mirror housing, a transflective reflective element, a compass sensor and compass circuitry. An information display is disposed in the mirror housing rearward of a transflective mirror reflector of the reflective element, and information displayed by the information display is viewable by a driver of the equipped vehicle through the transflective minor reflector of the reflective element when the information display is displaying information. The compass sensor may be disposed in the mirror housing rearward of the reflective element. The compass circuitry may be responsive to the compass sensor for determining a directional heading of the vehicle. The information display is operable to display the directional heading to the driver of equipped vehicle. The compass circuitry at least partially compensates for movement of the compass sensor caused by adjustment of the mirror housing. | 09-17-2009 |
| 20090292496 | VEHICLE COMPASS COMPENSATION - A compass compensation system is provided for automatically and continuously calibrating an electronic compass for a vehicle, without requiring an initial manual calibration or preset of the vehicle magnetic signature. The system initially adjusts a two axis sensor of the compass in response to a sampling of at least one initial data point. The system further calibrates the compass by sampling data points that are substantially opposite to one another on a plot of a magnetic field and averaging an ordinate of the data points to determine a respective zero value for the Earth magnetic field. The system also identifies a change in magnetic signature and adjusts the sensor assembly. | 11-26-2009 |
| 20100027145 | INTERIOR REARVIEW MIRROR SYSTEM WITH COMPASS - An interior rearview mirror system for a vehicle includes an interior rearview mirror assembly, a casing having a reflective element, a compass sensor and a control. The compass sensor is disposed within the mirror casing and has a first magnetoresponsive sensing element and a second magnetoresponsive sensing element. The control receives a first signal indicative of a magnetic field sensed by the first magnetoresponsive sensing element and a second signal indicative of a magnetic field sensed by the second magnetoresponsive sensing element. The control determines that the casing is adjusted by an occupant of the vehicle in response to a change in the first and second signals being indicative of an abrupt movement of the casing about the mounting structure by an occupant of the vehicle. The control is operable to enter a rapid compensating mode to compensate for the mirror adjustment. | 02-04-2010 |
| 20100126030 | INTERIOR REARVIEW MIRROR SYSTEM WITH COMPASS - An interior rearview mirror system includes an interior rearview mirror assembly and a compass sensor. A physical mount mounts the compass sensor at the reflective element whereby the compass sensor adjusts in tandem with adjustment of the reflective element. A control receives at least one signal indicative of at least one magnetic field sensed by the compass sensor. The control determines a directional heading of the vehicle based on the signal or signals and generates a signal indicative of the directional heading of the vehicle. The control may automatically compensate for adjustment of the compass sensor in tandem with adjustment of the reflective element. | 05-27-2010 |
| 20100202075 | INTERIOR REARVIEW MIRROR SYSTEM - An interior rearview mirror system for a vehicle includes an interior rearview mirror assembly, a casing having a reflective element, a compass sensor and a control. The compass sensor is disposed within the mirror casing and has a first magnetoresponsive sensing element and a second magnetoresponsive sensing element. The control receives a first signal indicative of a magnetic field sensed by the first magnetoresponsive sensing element and a second signal indicative of a magnetic field sensed by the second magnetoresponsive sensing element. The control determines that the casing is adjusted by an occupant of the vehicle in response to a change in the first and second signals being indicative of an abrupt movement of the casing about the mounting structure by an occupant of the vehicle. The control is operable to enter a rapid compensating mode to compensate for the mirror adjustment. | 08-12-2010 |
| 20110026152 | INTERIOR REARVIEW MIRROR SYSTEM - An interior rearview mirror system for a vehicle includes an interior rearview mirror assembly having a mirror casing, a reflective element and an application specific integrated compass chip. The application specific integrated compass chip includes at least two magnetoresponsive sensing elements established on a semiconductor substrate, and further includes associated circuitry commonly established with the magnetoresponsive sensing elements on the semiconductor substrate. Processing of an algorithm by a microprocessor of the interior rearview mirror system determines a directional heading of the vehicle responsive to a sensing of a magnetic field by the magnetoresponsive sensing elements and automatically compensates for a deviating magnetic field. An information display of the interior rearview mirror assembly displays the directional heading of the vehicle. The application specific integrated compass chip may have an area of less than approximately two square centimeters. | 02-03-2011 |
| 20110058040 | VEHICULAR INTERIOR REARVIEW INFORMATION MIRROR SYSTEM - An interior rearview information mirror system for a vehicle includes an interior rearview mirror assembly having a mirror housing and a reflective element, and includes an information display operable to display information for viewing by the driver of the equipped vehicle. The information display is disposed in the mirror housing rearward of the reflective element, and information displayed by the information display is viewable by the driver of the equipped vehicle viewing through the reflective element when the information display is displaying information. The interior rearview mirror assembly includes a forward facing camera having a forward field of view in the direction of forward travel of the equipped vehicle, and the forward facing camera views through the windshield of the equipped vehicle when the interior rearview mirror assembly is normally mounted in the equipped vehicle. | 03-10-2011 |
