Device and method for alert and density altitude features in...

Details Device and method for alert and density altitude features in... Device and method for alert and density altitude features in...

2005-03-08

2005-03-08

Tarcza, Thomas H. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Return signal controls external device

Aircraft guidance

C342S042000, C342S046000, C342S120000, C342S123000

Reexamination Certificate

active

06864830

ABSTRACT:
A transponder having a subsystem for providing an altitude alert function signifying a deviation from a set altitude is described. The subsystem includes an input for receiving an altitude deviation limit associated with the set altitude, a CPU receiving updated altitude and determining a difference between the updated altitude and the set altitude associated with the altitude deviation limit, and a transponder subsystem output device for providing the difference between the updated altitude and the set altitude to a user.

REFERENCES:
patent: 4106343 (1978-08-01), Cook
patent: 4253335 (1981-03-01), Shimomura
patent: 4283705 (1981-08-01), James et al.
patent: 5532698 (1996-07-01), Nielsen et al.
patent: 6259380 (2001-07-01), Jensen
patent: 20030193408 (2003-10-01), Brown et al.

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