Inventor
CALDWELL STEPHEN P
US11 patents
⚠️ This page may combine multiple inventors who share the name “CALDWELL STEPHEN P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
US AIR FORCE
4 patentsUS4580107AApr 1, 1986
Phase lock acquisition system having FLL for coarse tuning and PLL for fine tuning
US AIR FORCE67 citations93
US4748399AMay 31, 1988
Multichannel phase noise measurement system
US AIR FORCE11 citations69
US4639688AJan 27, 1987
Wide-band phase locked loop amplifier apparatus
US AIR FORCE5 citations62
US4546268AOct 8, 1985
Narrow pulsewidth pulse generator circuit utilizing NPN microwave transistors
US AIR FORCE5 citations61
NORTHROP GRUMMAN CORP
3 patentsUS5661439AAug 26, 1997
Method and apparatus for cancelling phase noise
NORTHROP GRUMMAN CORP55 citations92
US7570201B1Aug 4, 2009
Radar exciter including phase compensation of the waveform generator
NORTHROP GRUMMAN CORP30 citations91
US6081226AJun 27, 2000
Multi-mode radar exciter
NORTHROP GRUMMAN CORP46 citations89
WESTINGHOUSE ELECTRIC CORP
3 patentsUS5151661ASep 29, 1992
Direct digital FM waveform generator for radar systems
WESTINGHOUSE ELECTRIC CORP135 citations92
US5023572AJun 11, 1991
Voltage-controlled oscillator with rapid tuning loop and method for tuning same
WESTINGHOUSE ELECTRIC CORP44 citations90
US5467091ANov 14, 1995
Radar and other communication systems having large bandwidth and large dynamic range
WESTINGHOUSE ELECTRIC CORP11 citations72