Inventor
CRAWFORD JAMES A
US24 patents
⚠️ This page may combine multiple inventors who share the name “CRAWFORD JAMES A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MAGIS NETWORKS INC
8 patentsUS6633616B2Oct 14, 2003
OFDM pilot tone tracking for wireless LAN
MAGIS NETWORKS INC128 citations99
US6549561B2Apr 15, 2003
OFDM pilot tone tracking for wireless LAN
MAGIS NETWORKS INC175 citations99
US6456242B1Sep 24, 2002
Conformal box antenna
MAGIS NETWORKS INC108 citations98
US6456245B1Sep 24, 2002
Card-based diversity antenna structure for wireless communications
MAGIS NETWORKS INC142 citations98
US6650616B2Nov 18, 2003
Transmission security for wireless communications
MAGIS NETWORKS INC51 citations96
US6438367B1Aug 20, 2002
Transmission security for wireless communications
MAGIS NETWORKS INC77 citations96
US6433742B1Aug 13, 2002
Diversity antenna structure for wireless communications
MAGIS NETWORKS INC57 citations96
US6549583B2Apr 15, 2003
Optimum phase error metric for OFDM pilot tone tracking in wireless LAN
MAGIS NETWORKS INC47 citations92
HUGHES AIRCRAFT CO
5 patentsUS4634998AJan 6, 1987
Fast phase-lock frequency synthesizer with variable sampling efficiency
HUGHES AIRCRAFT CO161 citations99
US4810904AMar 7, 1989
Sample-and-hold phase detector circuit
HUGHES AIRCRAFT CO124 citations96
US4586005AApr 29, 1986
Enhanced analog phase interpolation for Fractional-N frequency synthesis
HUGHES AIRCRAFT CO11 citations74
US4771248ASep 13, 1988
Fast phase-lock frequency synthesizer
HUGHES AIRCRAFT CO14 citations71
US4668922AMay 26, 1987
Fast phase-lock frequency synthesizer
HUGHES AIRCRAFT CO15 citations71
CRAWFORD JAMES A
4 patentsUS7551677B2Jun 23, 2009
OFDM pilot tone tracking for wireless LAN
CRAWFORD JAMES A26 citations92
US8111776B1Feb 7, 2012
Pulse insertion systems and methods for polar modulation
CRAWFORD JAMES A9 citations83
US7924101B1Apr 12, 2011
Systems and methods for improved VCO gain tracking loop
CRAWFORD JAMES A8 citations83
USD313731SJan 15, 1991
Ratchet extender
CRAWFORD JAMES A6 citations73