Inventor
KETCHUM JOHN W
US129 patents
⚠️ This page may combine multiple inventors who share the name “KETCHUM JOHN W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
QUALCOMM INC
35 patentsUS7986742B2Jul 26, 2011
Pilots for MIMO communication system
QUALCOMM INC165 citations99
US7324429B2Jan 29, 2008
Multi-mode terminal in a wireless MIMO system
QUALCOMM INC129 citations99
US7302009B2Nov 27, 2007
Broadcast transmission with spatial spreading in a multi-antenna communication system
QUALCOMM INC141 citations99
US7298805B2Nov 20, 2007
Multi-antenna transmission for spatial division multiple access
QUALCOMM INC118 citations99
US7164649B2Jan 16, 2007
Adaptive rate control for OFDM communication system
QUALCOMM INC260 citations99
US7095709B2Aug 22, 2006
Diversity transmission modes for MIMO OFDM communication systems
QUALCOMM INC238 citations99
US7072413B2Jul 4, 2006
Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion
QUALCOMM INC332 citations99
US7020110B2Mar 28, 2006
Resource allocation for MIMO-OFDM communication systems
QUALCOMM INC500 citations99
US7006848B2Feb 28, 2006
Method and apparatus for utilizing channel state information in a wireless communication system
QUALCOMM INC245 citations99
US7002900B2Feb 21, 2006
Transmit diversity processing for a multi-antenna communication system
QUALCOMM INC285 citations99
US6785341B2Aug 31, 2004
Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information
QUALCOMM INC493 citations99
US6771706B2Aug 3, 2004
Method and apparatus for utilizing channel state information in a wireless communication system
QUALCOMM INC425 citations99
US6760388B2Jul 6, 2004
Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems
QUALCOMM INC306 citations99
US6751187B2Jun 15, 2004
Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission
QUALCOMM INC419 citations99
US6252865B1Jun 26, 2001
Methods and apparatuses for fast power control of signals transmitted on a multiple access channel
QUALCOMM INC130 citations99
US7653142B2Jan 26, 2010
Channel estimation and spatial processing for TDD MIMO systems
QUALCOMM INC73 citations98
US7502420B2Mar 10, 2009
Method and apparatus for determining power allocation in a MIMO communication system
QUALCOMM INC73 citations98
US7280625B2Oct 9, 2007
Derivation of eigenvectors for spatial processing in MIMO communication systems
QUALCOMM INC69 citations98
US7206354B2Apr 17, 2007
Calibration of downlink and uplink channel responses in a wireless MIMO communication system
QUALCOMM INC95 citations98
US7194042B2Mar 20, 2007
Data transmission with spatial spreading in a mimo communication system
QUALCOMM INC74 citations98
US7154936B2Dec 26, 2006
Iterative detection and decoding for a MIMO-OFDM system
QUALCOMM INC371 citations98
US7151809B2Dec 19, 2006
Channel estimation and spatial processing for TDD MIMO systems
QUALCOMM INC113 citations98
US7076263B2Jul 11, 2006
Power control for partial channel-state information (CSI) multiple-input, multiple-output (MIMO) systems
QUALCOMM INC75 citations98
US7065144B2Jun 20, 2006
Frequency-independent spatial processing for wideband MISO and MIMO systems
QUALCOMM INC108 citations98
US7054378B2May 30, 2006
Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information
QUALCOMM INC68 citations98
US7020482B2Mar 28, 2006
Reallocation of excess power for full channel-state information (CSI) multiple-input, multiple-output (MIMO) systems
QUALCOMM INC120 citations98
US6940917B2Sep 6, 2005
Beam-steering and beam-forming for wideband MIMO/MISO systems
QUALCOMM INC188 citations98
US6731668B2May 4, 2004
Method and system for increased bandwidth efficiency in multiple input—multiple output channels
QUALCOMM INC89 citations98
US7702986B2Apr 20, 2010
Rate-compatible LDPC codes
QUALCOMM INC113 citations97
US7197084B2Mar 27, 2007
Precoding for a multipath channel in a MIMO system
QUALCOMM INC252 citations97
US7949060B2May 24, 2011
Method and apparatus for utilizing channel state information in a wireless communication system
QUALCOMM INC40 citations96
US9013974B2Apr 21, 2015
MIMO WLAN system
QUALCOMM INC23 citations93
US8355313B2Jan 15, 2013
MIMO system with multiple spatial multiplexing modes
QUALCOMM INC27 citations93
US7990841B2Aug 2, 2011
Diversity transmission modes for MIMO OFDM communication systems
QUALCOMM INC16 citations93
US7907689B2Mar 15, 2011
Broadcast transmission with spatial spreading in a multi-antenna communication system
QUALCOMM INC17 citations93
WALTON J RODNEY
9 patentsUS8483188B2Jul 9, 2013
MIMO system with multiple spatial multiplexing modes
WALTON J RODNEY96 citations99
US8462643B2Jun 11, 2013
MIMO WLAN system
WALTON J RODNEY93 citations99
US8320301B2Nov 27, 2012
MIMO WLAN system
WALTON J RODNEY129 citations99
US8208364B2Jun 26, 2012
MIMO system with multiple spatial multiplexing modes
WALTON J RODNEY43 citations98
US8203978B2Jun 19, 2012
Multi-mode terminal in a wireless MIMO system
WALTON J RODNEY65 citations98
US9473269B2Oct 18, 2016
Method and apparatus for providing an efficient control channel structure in a wireless communication system
WALTON J RODNEY26 citations94
US9240871B2Jan 19, 2016
MIMO WLAN system
WALTON J RODNEY19 citations93
US8169944B2May 1, 2012
Random access for wireless multiple-access communication systems
WALTON J RODNEY36 citations93
US8169889B2May 1, 2012
Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system
WALTON J RODNEY23 citations93
WALTON JAY RODNEY
3 patentsUS8325844B2Dec 4, 2012
Data transmission with spatial spreading in a MIMO communication system
WALTON JAY RODNEY77 citations98
US8218609B2Jul 10, 2012
Closed-loop rate control for a multi-channel communication system
WALTON JAY RODNEY40 citations94
US8842657B2Sep 23, 2014
High speed media access control with legacy system interoperability
WALTON JAY RODNEY24 citations93
WALLACE MARK S
2 patentsGTE LABORATORIES INC
1 patentShowing the top 50 of 129 patents by PatentIndex Score.