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 |
20110181727 | VEHICULAR INTERIOR REARVIEW MIRROR SYSTEM - An interior rearview mirror system for a vehicle includes an interior rearview mirror assembly and an information display operable to display information for viewing by the driver of the vehicle through a transflective mirror reflector of a reflective element of the interior rearview mirror assembly. Information display intensity of the information display is adjustable responsive to determination of a light level at the interior rearview mirror assembly by at least one photosensor. The information display is operable to display video images captured by a rearward facing video camera of the vehicle and the information display displays video images captured by the rearward facing video camera during a reversing maneuver of the vehicle. During a reversing maneuver of the vehicle, a signal indicative of the vehicle transmission being in reverse is communicated via a network bus of the vehicle to a control of the interior rearview mirror assembly. | 07-28-2011 |
20120038771 | VEHICULAR INTERIOR REARVIEW MIRROR SYSTEM - An interior rearview mirror system for a vehicle includes an interior rearview mirror assembly having a mirror housing, an electro-optic reflective element and an information display. The information display is disposed in the mirror housing rearward of the transflective mirror reflector of the reflective element and is operable to display information for viewing by the driver of the vehicle, with the information including video images captured by a camera of the vehicle. Information displayed by the information display is viewable by the driver of the vehicle viewing through the transflective mirror reflector of the reflective element when the information display is displaying information, and, when the information display is not displaying information, the presence of the information display behind the transflective mirror reflector of the reflective element is substantially not discerned by the driver of the vehicle normally viewing the reflective element in the vehicle. | 02-16-2012 |
20120224066 | VEHICULAR INTERIOR REARVIEW MIRROR SYSTEM - An interior rearview mirror system for a vehicle includes an interior rearview mirror assembly and an information display. The display is disposed in the interior rearview mirror assembly rearward of a transflective mirror reflector of an electrochromic reflective element of the mirror assembly. Information display intensity of the display is adjustable responsive to determination of a light level at the mirror assembly by a photosensor of the mirror assembly. The display is operable to display information for viewing by the driver of the vehicle, and the information at least includes video images captured by a camera of the vehicle. A control of the mirror assembly is in communication with a network bus of the equipped vehicle when the mirror assembly is normally mounted in the vehicle. A reflectance level of the electrochromic reflective element is controlled at least responsive to a determination of a light level by the photosensor. | 09-06-2012 |
20130046444 | INTERIOR REARVIEW MIRROR SYSTEM - An interior rearview mirror system for a vehicle includes an interior rearview minor assembly having compass circuitry having a multi-axis sensor and associated circuitry. At least a portion of the compass circuitry is established on a semiconductor substrate using CMOS technology. The multi-axis sensor comprises at least first and second magnetoresponsive sensing elements. The magnetoresponsive sensing elements may be disposed in the mirror casing and move in tandem with the minor casing and the reflective element when the minor casing is adjusted by the driver of the vehicle. Processing of an algorithm by a microprocessor of the interior rearview minor system determines a directional heading of the equipped 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 may display the directional heading of the equipped vehicle. | 02-21-2013 |
20130289915 | AUTOMATIC COMPASS SYSTEM FOR VEHICLE - An automatic compass system for a vehicle includes compass circuitry having a multi-axis compass sensor and associated circuitry. The multi-axis compass sensor includes first and second magnetoresponsive sensing elements. The magnetoresponsive sensing elements and at least a portion of the associated circuitry are established on a common silicon substrate using CMOS technology. The associated circuitry includes at least one of (i) an A/D converter, (ii) a D/A converter, (iii) signal processing circuitry, (iv) memory, (v) signal filtering circuitry, (vi) a display driver. The compass circuitry (i) determines a directional heading of the equipped vehicle responsive to a sensing of a magnetic field by the magnetoresponsive sensing elements and (ii) automatically compensates for a deviating magnetic field. Responsive to the compass circuitry, an information display of the equipped vehicle may display the directional heading of the equipped vehicle. | 10-31-2013 |
20140097832 | INTEGRATED AUTOMATIC COMPASS FOR VEHICLE - An integrated automotive compass suitable for use in a vehicle includes an application specific integrated circuit that includes at least first and second magnetoresponsive sensing elements. The first and second magnetoresponsive sensing elements and at least a portion of associated circuitry are established on a common semiconductor substrate using CMOS technology. When powered via a vehicle power source, the application specific integrated circuit, at least in part, generates a compass directional heading of the vehicle. The directional heading of the vehicle is determined, at least in part, responsive to a sensing of a magnetic field by the magnetoresponsive sensing elements. Automatic compensation for a deviating magnetic field during operation of the vehicle is achieved, at least in part, via an algorithm processed by a processor of application specific integrated circuit. | 04-10-2014 |