Patent ID: 11932413
Assignee: nan
Field: Transport (Mechanical engineering)
Classification: CPC A  B  G | IPC A  B  G

Claim 0:
1. An avionics interface device for presenting information to a pilot, comprising:
(a) an avionics data input; and
(b) a display device that presents a numerical representation of data from the avionics data input and that presents a hatched rectangular region immediately adjacent to and left of the numerical representation of data in substitution for any leading blank spaces that would otherwise be presented to the left of the numerical representation of data, thereby aiding in quick recognition of the numerical representation of data by the pilot when low values are being displayed,
embodied in a cockpit pressurization monitoring apparatus and oxygen warning system in an aircraft flown by a pilot and having an aircraft altitude and a cabin altitude, wherein the avionics data input comprises a cabin pressure input and an aircraft pressure input and wherein the display device includes a pilot interface including a first visual indicator having a first recognizable characteristic disposed in a first position that is made visually perceptible when a first signal is asserted and a second visual indicator having a second recognizable characteristic aesthetically different from the first recognizable characteristic and disposed in a second position different from the first position that is made visually perceptible when a second signal is asserted, and further comprising a control circuit that is responsive to the cabin pressure input and the aircraft pressure input that determines an acceptable range for the cabin altitude that corresponds to the aircraft altitude and that determines the cabin altitude as a function of the cabin pressure input and that asserts the first signal only when the cabin altitude is within the acceptable range and not when the cabin altitude is not within the acceptable range, and that asserts the second signal only when the cabin altitude is not within the acceptable range and not when the cabin altitude is within the acceptable range.