Communications: electrical – Condition responsive indicating system – Specified housing
Patent
1978-07-03
1980-06-03
Stewart, David L.
Communications: electrical
Condition responsive indicating system
Specified housing
340167A, H04B 1200
Patent
active
042064112
ABSTRACT:
A method and apparatus are disclosed for the emergency control of model aircraft. The incoming signals to the model are screened and, if missing or outside acceptable limits, the screened signals are replaced with a sequence of preprogrammed emergency signals which control the model into an emergency procedure.
REFERENCES:
patent: 3774217 (1973-11-01), Bonner
patent: 4059731 (1977-11-01), Green
patent: 4072898 (1978-02-01), Hellman
Grundig E.M.V.
Stewart David L.
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