1
Bran Ferren, W Daniel Hillis, Michael Harvey Peterson: Imaging and display system to aid helicopter landings in brownout conditions. Applied Minds, Michael A Glenn, Glenn Patent Group, September 13, 2011: US08019490 (22 worldwide citation)

An imaging and display system provides helicopter pilots with an unobstructed display of a landing area in a brownout or whiteout condition by capturing a high resolution image of the landing area prior to obscuration. Using inertial navigation information from the aircraft or an independent system, ...


2
Bran FERREN, W Daniel Hillis, Michael Harvey Peterson: Imaging and display system to aid helicopter landings in brownout conditions. Glenn Patent Group, May 28, 2009: US20090138138-A1

An imaging and display system provides helicopter pilots with an unobstructed display of a landing area in a brownout or whiteout condition by capturing a high resolution image of the landing area prior to obscuration. Using inertial navigation information from the aircraft or an independent system, ...