1
Jon H Bechtel, Joseph S Stam: Control circuit for image array sensors. Gentex Corporation, Brooks & Kushman P C, November 23, 1999: US05990469 (401 worldwide citation)

A control system for controlling an image array sensor and controlling communication between the image array sensor and a microcontroller by way of a serial communication interface. The control system is able to efficiently control various aspects of the image array sensor such as windowing, mode of ...


2
Joseph S Stam, Jon H Bechtel, John K Roberts: Moisture sensor and windshield fog detector using an image sensor. Gentex Corporation, Brooks & Kushman P C, July 13, 1999: US05923027 (357 worldwide citation)

A control system for automatically detecting moisture on the windshield of a vehicle. The automatic moisture detecting system includes an optical system for imaging a portion of the windshield on to an image array sensor, such as a CMOS active pixel sensor. The voltages of each of the pixels which r ...


3
William L Tonar, Jeffrey A Forgette, John S Anderson, Jon H Bechtel, John W Carter, Joseph S Stam: Electrochromic rearview mirror incorporating a third surface metal reflector and a display/signal light. Gentex Corporation, Brian J Rees, Price Heneveld Cooper DeWitt & Litton, March 12, 2002: US06356376 (329 worldwide citation)

An electrochromic mirror is disclosed for use in a vehicle rearview mirror assembly having a light source positioned behind the electrochromic mirror for selectively projecting light through the mirror. The electrochromic mirror includes front and rear spaced elements each having front and rear surf ...


4
Joseph S Stam, Jon H Bechtel, Frederick T Bauer: Continuously variable headlamp control. Gentex Corporation, Brooks & Kushman P C, April 11, 2000: US06049171 (319 worldwide citation)

Continuously variable headlamps offer greater flexibility for roadway illumination but offer challenges in automatic control design. Each continuously variable headlamp has an effective illumination range varied by changing at least one parameter from a set including horizontal direction aimed, vert ...


5
Frederick T Bauer, Jon H Bechtel: Automatic rearview mirror for automotive vehicles. Gentex Corporation, Malcolm R McKinnon, April 17, 1984: US04443057 (312 worldwide citation)

An improved inside rearview mirror particularly adapted for use with automotive vehicles, the mirror incorporating improved means for detecting and comparing the relative brightness of light forwardly and rearwardly of the vehicle and improved means responding automatically to annoying glare from th ...


6
Jon H Bechtel, Harlan J Byker: Automatic rearview mirror system for automotive vehicles. Gentex Corporation, Malcolm R McKinnon, April 17, 1990: US04917477 (300 worldwide citation)

An improved automatic rearview mirror system which is particularly adapted for use with automotive vehicles and which may be utilized as a fully integrated inside/outside rearview mirror system or as an inside or an outside rearview mirror system. The system includes a variable reflectance member th ...


7
Joseph S Stam, Jon H Bechtel, Spencer D Reese, John K Roberts, William L Tonar, G Bruce Poe, Douglas J Newhouse: System for controlling exterior vehicle lights. Gentex Corporation, Price Heneveld Cooper DeWitt & Litton, July 1, 2003: US06587573 (291 worldwide citation)

A system and method of automatically controlling exterior vehicle lights includes an image sensor and a controller to generate control signals. The control signals are derived based on information obtained from the image sensor as well as other detected parameters pertaining to the detected light so ...


8
Jon H Bechtel, Wayne J Rumsey: Control system for automotive vehicle headlamps and other vehicle equipment. Gentex Corporation, Malcolm R McKinnon, July 16, 1996: US05537003 (255 worldwide citation)

A control system is provided for controlling the energization of the headlamps on a first automotive vehicle, the headlamps being electrically energizable and each having a high beam state and a low beam state. The system includes means for collecting light emanating from a second vehicle and means ...


9
Joseph S Stam, Jon H Bechtel, Eric R Fossum, Sabrina E Kemeny: Wide dynamic range optical sensor. Gentex Corporation, Brooks & Kushman P C, December 28, 1999: US06008486 (248 worldwide citation)

A system and method is described for increasing effective integration time of an optical sensor including holding a first signal within each pixel cell, proportional to light integrated by the pixel cell over the previous frame period, generating a second signal within each pixel cell proportional t ...


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