Patent ID: 8732233

Claim:
An electronic flight bag apparatus comprising: an electronic flight bag (EFB) system installed in an aircraft and configured to interface with a ground network via one or more communication systems of the aircraft, the EFB system including at least one installed EFB having an electronic unit and a display unit connected with the electronic unit, the electronic unit further including one or more computers configured to execute a first software client of a flight-related application, wherein the flight-related application also includes a second software client corresponding to the first software client, and to provide to the display unit with information to generate one or more displays associated with the flight-related application; a portable EFB device configured to perform at least part of the flight-related application that makes use of the second software client when not connected with the EFB system and, when on the aircraft, connectible with the EFB system via a trusted link and secure connection to perform the flight-related application in coordination with the at least one installed EFB; and the first and second software clients of the flight-related application further being able to communicate with one another and perform application-to-application communications using both of the installed EFB and the portable EFB device, and further such that either of said first and second software clients is able to generate messages for downloading to the ground network and each is able to assist a crew member with flight related operations.