Communications: directive radio wave systems and devices (e.g. – Determining distance – Altimeter
Reexamination Certificate
2006-06-20
2006-06-20
Sotomayor, John B. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Determining distance
Altimeter
C342S123000, C342S132000, C342S134000, C342S135000
Reexamination Certificate
active
07064703
ABSTRACT:
A method for randomly phase modulating a radar altimeter is described. The method includes momentarily applying a signal from a random noise source to an amplifier, applying an output of the amplifier to a voltage controlled oscillator (VCO), applying an output of the VCO to a transmitter and mixer of the radar altimeter to modulate transmissions of the radar altimeter and to demodulate reflected radar transmissions received by the radar altimeter and holding the output of the amplifier constant from before a radar altimeter transmission until after reception of the reflected radar signals from that transmission by the radar altimeter. The method further includes repeating the applying steps and the holding step.
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Hager James R.
Jordan Lavell
Armstrong Teasdale LLP
Dina Khaled, Esq.
Sotomayor John B.
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