Communications: directive radio wave systems and devices (e.g. – Determining distance – With pulse modulation
Reexamination Certificate
2006-02-21
2006-02-21
Gregory, Bernarr E. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Determining distance
With pulse modulation
C342S082000, C342S089000, C342S118000, C342S128000, C342S130000, C342S131000, C342S132000, C342S165000, C342S173000, C342S174000, C342S175000, C342S194000, C342S195000, C342S196000
Reexamination Certificate
active
07002511
ABSTRACT:
A millimeter wave pulsed radar system includes a radar synthesizer having a voltage controlled oscillator/phase locked loop (VCO/PLL) circuit, direct digital synthesizer (DDS) circuit and quadrature modulator circuit that are operative to generate an intermediate frequency local oscillator signal (IF/LO signal). A radar transceiver is operative with the radar synthesizer for receiving the IF/LO signal. A transmitter section has a frequency multiplier that multiplies the IF/LO signal up to a millimeter wave (MMW) radar signal and a receiver section and includes a direct conversion mixer that receives a MMW radar signal and the IF/LO signal to produce I/Q baseband signals that are later digitized and processed.
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Ammar Danny F.
Bills David M.
Clark Gavin
Shafie Matt H.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Gregory Bernarr E.
Xytrans, Inc.
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