Radiotelephone system > Zoned or cellular telephone system > Airborne or aircraft > Patents

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Class Information
Number: 455/431
Name: Telecommunications > Radiotelephone system > Zoned or cellular telephone system > Airborne or aircraft
Description: Subject matter wherein a space deployed station or an airplane is used as a communication station or as a relay communicating station.

Patents under this class:

1 2 3 4 5 6

Patent Number	Title Of Patent	Date Issued
5123112	Air-to-ground communication system	Jun. 16, 1992
5067172	Air to ground communications system and method	Nov. 19, 1991
5014342	Communication system employing a nine channel pattern allocation to eliminate interference	May. 7, 1991
4903298	System for providing encryption and decryption of voice and data transmissions to and from an aircraft	Feb. 20, 1990
4870425	Communications system	Sep. 26, 1989
4434504	Channeling and decode circuit for airborne radio-telephone systems	Feb. 28, 1984
4419766	Methods and means for providing improved air/ground radio telephone communications	Dec. 6, 1983
4017799	High speed multiplex data transmission system	Apr. 12, 1977