Inventor
FISCHER GERALD R
US13 patents
⚠️ This page may combine multiple inventors who share the name “FISCHER GERALD R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NORTHROP GRUMMAN SYSTEMS CORP
7 patentsUS10122527B1Nov 6, 2018
Signal phase tracking with high resolution, wide bandwidth and low phase noise using compound phase locked loop
NORTHROP GRUMMAN SYSTEMS CORP5 citations72
US9741245B1Aug 22, 2017
Method and apparatus for producing optical tracking and nutation at high frequencies with low power
NORTHROP GRUMMAN SYSTEMS CORP6 citations72
US9641312B1May 2, 2017
Method for symbol clock recovery in pulse position modulation (PPM) systems
NORTHROP GRUMMAN SYSTEMS CORP2 citations72
US10284358B1May 7, 2019
Clock and frame synchronization carried as a single composite signal allows the use of a single transmission line with a narrower bandwidth
NORTHROP GRUMMAN SYSTEMS CORP5 citations62
US12320697B1Jun 3, 2025
Beam alignment system
NORTHROP GRUMMAN SYSTEMS CORP0 citations51
US7929640B2Apr 19, 2011
High speed differential encoder and interleaver
NORTHROP GRUMMAN SYSTEMS CORP1 citations42
US9503294B1Nov 22, 2016
Amplitude and phase shift keying modulation for saturated amplifier systems
NORTHROP GRUMMAN SYSTEMS CORP0 citations33
NORTHROP GRUMMAN CORP
5 patentsUS6784728B2Aug 31, 2004
Low noise switched low pass filter with benign transients
NORTHROP GRUMMAN CORP32 citations91
US6570457B2May 27, 2003
Phase locked loop using sample and hold after phase detector
NORTHROP GRUMMAN CORP41 citations91
US6680654B2Jan 20, 2004
Phase locked loop with offset cancellation
NORTHROP GRUMMAN CORP33 citations86
US6563389B1May 13, 2003
Phase locked loop with charge injection cancellation
NORTHROP GRUMMAN CORP4 citations61
US7342971B2Mar 11, 2008
Bipolar waveform modulation for ultra wideband (UWB) communication networks
NORTHROP GRUMMAN CORP0 citations51