Patent ID: 7924172

Claim:
A synthetic vision system (SVS) for an aircraft, comprising: a) an electronic display device; b) a user input device configured to receive runway correction commands from a user, said runway correction commands being directly in response to discrepancies observed by said user between an observed runway position in the real world and a synthetic vision runway position depicted on said electronic display device, said user input device providing runway corrections; c) an SVS computer operatively connected to said electronic display device for providing SVS image data to said electronic display device in response to received runway parameter data; d) a runway parameter server device (RPSD) operatively connected to said user input device and to said SVS computer for receiving said runway corrections from said user input device and providing said runway parameter data, including any corrected data provided by the user, to said SVS computer; and, e) a runway parameter database operatively connected to said RPSD for receiving correction data from said RPSD and providing corrected data to said RPSD, wherein said user input device provides the capability of slewing the synthetic vision runway position to the observed real-world runway position by real-time modification of the runway position parameters when said synthetic vision runway position is directly observed by the user to be misaligned, said corrected data being subsequently used to provide enhanced runway environment information for taxi operations.