Inventor · disambiguated record
Christopher W. Walker
Also filed as: WALKER CHRISTOPHER W
12 granted patents·3 pending applications·199 citations·filing 1989–2021
90Inventor score
Files withNORTHROP GRUMMAN SYSTEMS CORP4NORTHROP GRUMMAN CORP3WALKER FITNESS SYSTEMS INC3NORTHROP GRUMMAN SPACE & MSN1WALKER CHRISTOPHER W1
Top patents by PatentIndex Score
15 records- 0185US5058888AAutomatic force generating and control systemWALKER FITNESS SYSTEMS INC·Filed 1989·Granted Oct 22, 1991·79 cites·37 claims
- 0283US6956924B2Efficient implementation of a decision directed phase locked loop (DD-PLL) for use with short block code in digital communication systemsNORTHROP GRUMMAN CORP·Filed 2001·Granted Oct 18, 2005·38 cites·21 claims
- 0380US10855326B1Reduced complexity in generating chaotic sequences for communication systems using sub-sampling techniquesNORTHROP GRUMMAN SYSTEMS CORP·Filed 2020·Granted Dec 1, 2020·2 cites·19 claims
- 0479US9825693B1Method and apparatus for symbol measurement and combiningNORTHROP GRUMMAN SYSTEMS CORP·Filed 2014·Granted Nov 21, 2017·7 cites·25 claims
- 0574US11539558B1High instantaneous bandwidth auto-indexing parallelized chaotic waveform data modulator and demodulator with temporal automatic gain control, increased path diversity and sequence lock up preventionNORTHROP GRUMMAN SYSTEMS CORP·Filed 2021·Granted Dec 27, 2022·1 cites·17 claims
- 0671US5209715AAutomatic force generating and control systemWALKER FITNESS SYSTEMS INC·Filed 1991·Granted May 11, 1993·46 cites·10 claims
- 0763USD325610SPhysical exerciserWALKER FITNESS SYSTEMS INC·Filed 1989·Granted Apr 21, 1992·10 cites·1 claims
- 0861US6781447B2Multi-pass phase tracking loop with rewind of current waveform in digital communication systemsNORTHROP GRUMMAN SPACE & MSN·Filed 2001·Granted Aug 24, 2004·7 cites·24 claims
- 0956US7006578B2Constellation mapping for modulated communicationsNORTHROP GRUMMAN CORP·Filed 2001·Granted Feb 28, 2006·7 cites·17 claims
- 1052US7164734B2Decision directed phase locked loops (DD-PLL) with excess processing power in digital communication systemsNORTHROP GRUMMAN CORP·Filed 2001·Granted Jan 16, 2007·2 cites·32 claims
- 1144US11016734B1Chip dithering using permuted randomized selection sets to enhance the LPI/LPD characteristics of a waveformNORTHROP GRUMMAN SYSTEMS CORP·Filed 2020·Granted May 25, 2021·0 cites·20 claims
- 1242US2003103582A1Selective reed-solomon error correction decoders in digital communication systemsFiled 2001·Application pending·0 cites
- 1342US2003128777A1Decision directed phase locked loops (DD-PLL) with multiple initial phase and/or frequency estimates in digital communication systemsFiled 2001·Application pending·0 cites
- 1442US2003123595A1Multi-pass phase tracking loop with rewind of future waveform in digital communication systemsFiled 2001·Application pending·0 cites
- 1541US9756519B2Communication signal rate detection systemWALKER CHRISTOPHER W·Filed 2016·Granted Sep 5, 2017·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →