Patents by Inventor Mark L. Larson
Mark L. Larson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20110285849Abstract: An image sensing system for a vehicle includes an imaging sensor and a control. The imaging sensor has a two-dimensional array of light sensing pixels, and has a forward field of view through the windshield of a vehicle equipped with the image sensing system to the exterior of the equipped vehicle. The imaging sensor is operable to capture image data and the control includes an image processor. The image sensing system determines an object of interest present in the forward field of view of the imaging sensor via processing of the captured image data by the image processor. The image processing includes spatial filtering. The spatial filtering may, at least in part, identify atmospheric conditions. The spatial filtering may include analysis of a spectral signature representative of at least one detected light source present in the forward field of view of the imaging sensor.Type: ApplicationFiled: August 5, 2011Publication date: November 24, 2011Applicant: DONNELLY CORPORATIONInventors: Kenneth Schofield, Mark L. Larson, Keith J. Vadas
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Patent number: 7994462Abstract: A vehicular image sensing system includes an imaging sensor having a forward field of view to the exterior of and through the windshield of an equipped vehicle. The imaging sensor is operable to capture image data and the image sensing system includes a control having an image processor. The image sensing system identifies objects of interest in the forward field of view of the image sensor via processing of the captured image data by the image processor. Identification of objects of interest may be enhanced by comparing objects over successive frames of captured image data. Objects of interest may be qualified and/or disqualified based at least in part on object motion in the field of view of the imaging sensor. The image processing may include pattern recognition.Type: GrantFiled: December 17, 2009Date of Patent: August 9, 2011Assignee: Donnelly CorporationInventors: Kenneth Schofield, Mark L. Larson, Keith J. Vadas
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Patent number: 7859565Abstract: A vision system for a vehicle is provided that includes a vehicle equipped with at least two image capture devices. The image capture devices capture an image external of the vehicle and have overlapping fields of view. Outputs of the at least two image capture devices are fed to an image processor. The image processor produces a synthesized image from the outputs of the at least two image capture devices. The vision system may be a night-vision system.Type: GrantFiled: August 19, 2003Date of Patent: December 28, 2010Assignee: Donnelly CorporationInventors: Kenneth Schofield, Mark L Larson, Keith J Vadas
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Patent number: 7855755Abstract: A video mirror system for a vehicle comprising an interior rearview mirror assembly having a transflective electro-optic reflective element that transmits at least about ten percent of visible light incident thereon and reflects at least about sixty percent of visible light incident thereon. A display module is disposed at a rear of the transflective electro-optic reflective element and comprises a plurality of individual light sources. A thermally conductive element may be in substantial thermal contact with the display module and is exposed at a rear casing portion of the mirror assembly so as to draw heat generated by the display module away from the display module and to the exterior of the interior rearview mirror assembly. The exposure of the thermally conductive element at the rear casing portion may be substantially not discernible to a viewer viewing the rear casing portion of the interior rearview mirror assembly.Type: GrantFiled: October 31, 2006Date of Patent: December 21, 2010Assignee: Donnelly CorporationInventors: Andrew D. Weller, Mark L. Larson, Ian A. McCabe, Niall R. Lynam, Rodney K. Blank, Joseph P. McCaw, John T. Uken
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Publication number: 20100194890Abstract: A vehicular video mirror system includes an interior rearview mirror assembly having a transflective reflective element. The mirror system includes a video display device at a casing of the mirror assembly rearward of the transflective reflective element, with the video display device having a video screen and a plurality of individual white light emitting light sources operable for backlighting the video screen. The intensity of light emitted by the white light emitting light sources is variable responsive to detection of light by at least one photosensor. The video screen may be operable to display video images captured by a rear back-up camera of the equipped vehicle during a reversing maneuver of the equipped vehicle. Light emanating from the white light emitting light emitting diodes may pass through a brightness enhancement film and a light diffuser to be incident at a transflective reflector of a second substrate of the mirror assembly.Type: ApplicationFiled: April 13, 2010Publication date: August 5, 2010Applicant: DONNELLY CORPORATIONInventors: Andrew D. Weller, Mark L. Larson, Ian A. McCabe, Niall R. Lynam, Rodney K. Blank, Joseph P. McCaw, John T. Uken
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Publication number: 20100124348Abstract: A vehicle interior rearview mirror assembly comprises an accessory, a reflective element and a bezel. The mirror assembly may define portions of a pocket that at least partially receives and secures the accessory therebetween when the reflective element is at least partially received in the bezel. The mirror assembly may include a microphone and an acoustic cover positioned at least partially over one or more inlet ports of the microphone. The acoustic cover may include an outer air flow limiting layer that substantially limits air flow therethrough and a diffusing material that may space and support the outer layer from the inlet ports to substantially diffuse air flow that penetrates the outer layer. An acoustic barrier may be positioned between a pair of inlet ports of the microphone to enhance the directivity of the microphone.Type: ApplicationFiled: January 26, 2010Publication date: May 20, 2010Applicant: DONNELLY CORPORATIONInventors: Mark L. Larson, Andrew D. Weller, Joshua J. Barr, Eric P. Bigoness, Timothy R. Lambrix, Carol L. DeBoer, Joseph P. McCaw
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Publication number: 20100118146Abstract: A system and method of automatically controlling vehicle exterior lights including an image sensor and a controller to generate headlamp control signals.Type: ApplicationFiled: January 15, 2010Publication date: May 13, 2010Applicant: DONNELLY CORPORATIONInventors: Kenneth Schofield, Mark L. Larson, Keith J. Vadas
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Publication number: 20100097469Abstract: An interior rearview mirror system and assembly includes a variable reflectivity reflective element and a video display screen disposed behind the reflective element and operable to display images viewable through the reflective element by a person viewing the interior rearview mirror assembly when it is normally mounted in a vehicle. The video display screen may be operable to brighten or enhance the intensity of images displayed by the video display screen responsive to a dimming condition of the variable reflectivity reflective element. The mirror system may include an image sensor and a decoder that decodes an output signal of the image sensor. The decoder has a microprocessor operable to control the video display screen, such that the captured image data are processed and images are displayed via operation of a common microprocessor. A compass chip may connect to a vehicle wire harness that extends from a vehicle headliner.Type: ApplicationFiled: October 14, 2009Publication date: April 22, 2010Applicant: MAGNA MIRRORS OF AMERICA, INC.Inventors: Rodney K. Blank, Mark L. Larson, Niall R. Lynam
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Publication number: 20100090603Abstract: A vehicle headlamp control method and apparatus includes providing an imaging sensor that senses light in spatially separated regions of a field of view forward of the vehicle. Light levels sensed in individual regions of the field of view are evaluated in order to identify light sources of interest, such as oncoming headlights and leading taillights. The vehicle's headlights are controlled in response to identifying such particular light sources or absence of such light sources. Spectral signatures of light sources may be examined in order to determine if the spectral signature matches that of particular light sources such as the spectral signatures of headlights or taillights. Sensed light levels may also be evaluated for their spatial distribution in order to identify light sources of interest.Type: ApplicationFiled: December 17, 2009Publication date: April 15, 2010Applicant: DONNELLY CORPORATIONInventors: Kenneth Schofield, Mark L. Larson, Keith J. Vadas
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Patent number: 7655894Abstract: An image sensing system for a vehicle includes an imaging sensor comprising a two-dimensional array of light sensing photosensor elements formed on a semiconductor substrate. The imaging sensor is disposed at an interior portion of the vehicle, and may be at or proximate to an interior rearview mirror assembly of the vehicle. The system includes a logic and control circuit comprising an image processor for processing image data derived from the imaging sensor. The image sensing system may identify objects of interest based on spectral differentiation or by comparing over successive frames image data associated with objects in the forward field of view of the image sensor or by objects of interest being at least one of qualified and disqualified based at least in part on object motion in the field of view of the imaging sensor.Type: GrantFiled: November 19, 2008Date of Patent: February 2, 2010Assignee: Donnelly CorporationInventors: Kenneth Schofield, Mark L. Larson, Keith J. Vadas
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Patent number: 7657052Abstract: A vehicle interior rearview mirror assembly (10) comprises an accessory (24), a reflective element (18) and a bezel (20). The mirror assembly may define portions of a pocket (23) that at least partially receives and secures the accessory therebetween when the reflective element is at least partially received in the bezel. The mirror assembly (11) may include a microphone (124) and an acoustic cover (126) positioned at least partially over one or more inlet ports (124j, 124k) of the microphone. The acoustic cover may include an outer air flow limiting layer (130b) that substantially limit air flow therethrough and a diffusing material (130a) that may space and support the outer layer from the inlet ports to substantially diffuse air flow that penetrates the outer layer. An acoustic barrier (132) may be positioned between a pair of inlet port of the microphone to enhance the directivity of the microphone.Type: GrantFiled: October 2, 2003Date of Patent: February 2, 2010Assignee: Donnelly CorporationInventors: Mark L Larson, Andrew D Weller, Joshua L Barr, Eric P Bigoness, Timothy R Lambrix, Carol L DeBoer, Joseph P McCaw
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Publication number: 20090262192Abstract: A vehicular vision system includes at least a first image capture sensor and a second image capture sensor disposed at a vehicle and spatially separated and having respective fields of view with respect to the direction of travel of the equipped vehicle. A control receives a first image input from the first image capture sensor and a second image input from the second image capture sensor and generates a composite image synthesized from at least the first image input and the second image input. A display system displays the composite image on a single video screen located in a cabin of the equipped vehicle and viewable by a driver of the equipped vehicle when the driver is normally operating the equipped vehicle. The single video screen of the display system may have a display luminance that is variable responsive to a sensing of an ambient light level.Type: ApplicationFiled: July 1, 2009Publication date: October 22, 2009Applicant: DONNELLY CORPORATIONInventors: Kenneth Schofield, Mark L. Larson, Keith J. Vadas
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Publication number: 20090201137Abstract: A rearview assembly for a vehicle includes a mirror element having a partially reflective, partially transmissive coating and a video display positioned behind the mirror element such that a display image is viewable through the partially reflective, partially transmissive coating. The video display may generate a viewable display image that has an intensity of at least 250 cd/m2. The video display may generate a display image that extends along and abuts at least a portion of curved edges of a housing. The assembly may include a forward facing light sensor for sensing a first light level forward of the vehicle, a rearward facing light sensor sensing a second light level to the rear of the vehicle, and a control circuit for comparing the first and second light levels and generating a warning signal when the second light level exceeds the first light level by at least threshold amount.Type: ApplicationFiled: March 17, 2009Publication date: August 13, 2009Applicant: DONNELLY CORPORATIONInventors: Andrew D. Weller, Mark L. Larson, Ian A. McCabe, Niall R. Lynam, Rodney K. Blank, Joseph P. McCaw, John T. Uken
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Patent number: 7561181Abstract: A vehicle vision system includes a vehicle having first and second spatially separated image capture sensors. The first image capture device has a first field of view haying a first field of view portion at least partially overlapping a field of view portion of a second field of view of the second image capture device. A control receives a first image input from the first image capture sensor and a second image input from the second image capture sensor and generates a composite image synthesized from the first image input and the second image input. A display system displays the composite image.Type: GrantFiled: May 5, 2005Date of Patent: July 14, 2009Assignee: Donnelly CorporationInventors: Kenneth Schofield, Mark L Larson, Keith J Vadas
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Publication number: 20090072124Abstract: An image sensing system for a vehicle includes an imaging sensor comprising a two-dimensional array of light sensing photosensor elements formed on a semiconductor substrate. The imaging sensor is disposed at an interior portion of the vehicle, and may be at or proximate to an interior rearview mirror assembly of the vehicle. The system includes a logic and control circuit comprising an image processor for processing image data derived from the imaging sensor. The image sensing system may identify objects of interest based on spectral differentiation or by comparing over successive frames image data associated with objects in the forward field of view of the image sensor or by objects of interest being at least one of qualified and disqualified based at least in part on object motion in the field of view of the imaging sensor.Type: ApplicationFiled: November 19, 2008Publication date: March 19, 2009Applicant: DONNELLY CORPORATIONInventors: Kenneth Schofield, Mark L. Larson, Keith J. Vedas
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Publication number: 20090015736Abstract: A video mirror system for a vehicle comprising an interior rearview mirror assembly having a transflective electro-optic reflective element that transmits at least about ten percent of visible light incident thereon and reflects at least about sixty percent of visible light incident thereon. A display module is disposed at a rear of the transflective electro-optic reflective element and comprises a plurality of individual light sources. A thermally conductive element may be in substantial thermal contact with the display module and is exposed at a rear casing portion of the mirror assembly so as to draw heat generated by the display module away from the display module and to the exterior of the interior rearview mirror assembly. The exposure of the thermally conductive element at the rear casing portion may be substantially not discernible to a viewer viewing the rear casing portion of the interior rearview mirror assembly.Type: ApplicationFiled: October 31, 2006Publication date: January 15, 2009Applicant: DONNELLY CORPORATIONInventors: Andrew D. Weller, Mark L. Larson, Ian A. McCabe, Niall R. Lynam, Rodney K. Blank, Joseph P. McCaw, John T. Uken
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Patent number: 7459664Abstract: An image sensing system for a vehicle includes an imaging sensor and a logic and control circuit. The imaging sensor comprises a two-dimensional array of light sensing photosensor elements formed on a semiconductor substrate and is disposed at an interior portion of the vehicle proximate the windshield of the vehicle and has a forward field of view to the exterior of the vehicle through an area of the windshield. The logic and control circuit comprises an image processor for processing image data derived from the imaging sensor. The logic and control circuit generates at least one control output. The image sensing system detects lane markers on a road being traveled by the vehicle and present in the field of view of the imaging sensor.Type: GrantFiled: January 24, 2007Date of Patent: December 2, 2008Assignee: Donnelly CorporationInventors: Kenneth Schofield, Mark L. Larson, Keith J. Vadas
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Patent number: 7425076Abstract: A vision system for a vehicle includes an imaging sensor and a logic and control circuit, which generates at least one control output for controlling at least one vehicular light of the vehicle. The vision system recognizes veiling glare caused by scattered light in the field of view exterior and forward of the vehicle, with the scattered light being caused by at least one of fog, snow and rain present in the field of view exterior and forward of the vehicle. The vision system, responsive to the recognition of the veiling glare in the field of view exterior and forward of the vehicle, selects an appropriate vehicular lighting configuration so as to reduce the level of the veiling glare. The logic and control circuit may generate a control output for controlling at least one headlight, which may be operable in a high beam mode and a lower beam mode.Type: GrantFiled: December 18, 2007Date of Patent: September 16, 2008Assignee: Donnelly CorporationInventors: Kenneth Schofield, Mark L. Larson
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Patent number: 7423248Abstract: An automatic exterior light control includes an image array sensor and a controller. The image array sensor includes an array of pixel sensors, and is configured and mounted such that a field of view of the image array sensor substantially passes through an associated windshield area that is wiped by a windshield wiper. The controller is connected to the image array sensor and configured to receive at least a portion of at least one image from the image array sensor that is substantially free of windshield surface contamination.Type: GrantFiled: November 7, 2007Date of Patent: September 9, 2008Assignee: Donnelly CorporationInventors: Kenneth Schofield, Mark L. Larson, Keith J. Vadas
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Patent number: 7402786Abstract: A vehicle headlamp control method and apparatus includes providing an imaging sensor that senses light in spatially separated regions of a field of view forward of the vehicle. Light levels sensed in individual regions of the field of view are evaluated in order to identify light sources of interest, such as oncoming headlights and leading taillights. The vehicle's headlights are controlled in response to identifying such particular light sources or absence of such light sources. Spectral signatures of light sources may be examined in order to determine if the spectral signature matches that of particular light sources such as the spectral signatures of headlights or taillights. Sensed light levels may also be evaluated for their spatial distribution in order to identify light sources of interest.Type: GrantFiled: October 6, 2006Date of Patent: July 22, 2008Assignee: Donnelly CorporationInventors: Kenneth Schofield, Mark L Larson, Keith J Vadas