John W. Ketchum
134Patents
37h-index
24Co-inventors
90Inventor score
Filing activity: Jun 5, 1995 → Oct 28, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6785341B2 | Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information | Emerging Cross-Sectional Technologies | 373 | Expired |
| US7020110B2 | Resource allocation for MIMO-OFDM communication systems | Electricity | 347 | Expired |
| US6771706B2 | Method and apparatus for utilizing channel state information in a wireless communication system | Electricity | 312 | Expired |
| US7154936B2 | Iterative detection and decoding for a MIMO-OFDM system | Electricity | 285 | Expired |
| US6751187B2 | Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission | Electricity | 267 | Expired |
| US7072413B2 | Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion | Electricity | 238 | Expired |
| US6760388B2 | Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems | Electricity | 218 | Expired |
| US7197084B2 | Precoding for a multipath channel in a MIMO system | Electricity | 184 | Expired |
| US7002900B2 | Transmit diversity processing for a multi-antenna communication system | Electricity | 183 | Expired |
| US7986742B2 | Pilots for MIMO communication system | Electricity | 182 | Active |
| US7095709B2 | Diversity transmission modes for MIMO OFDM communication systems | Electricity | 173 | Expired |
| US5621723A | Power control in a CDMA network | Electricity | 167 | Expired |
| US7164649B2 | Adaptive rate control for OFDM communication system | Emerging Cross-Sectional Technologies | 165 | Expired |
| US7006848B2 | Method and apparatus for utilizing channel state information in a wireless communication system | Electricity | 163 | Expired |
| US6940917B2 | Beam-steering and beam-forming for wideband MIMO/MISO systems | Electricity | 142 | Expired |
| US8320301B2 | MIMO WLAN system | Electricity | 116 | Active |
| US7302009B2 | Broadcast transmission with spatial spreading in a multi-antenna communication system | Electricity | 113 | Expired |
| US7020482B2 | Reallocation of excess power for full channel-state information (CSI) multiple-input, multiple-output (MIMO) systems | Electricity | 107 | Expired |
| US7702986B2 | Rate-compatible LDPC codes | Electricity | 96 | Expired |
| US8483188B2 | MIMO system with multiple spatial multiplexing modes | Electricity | 94 | Active |
| US7298805B2 | Multi-antenna transmission for spatial division multiple access | Electricity | 92 | Expired |
| US8570988B2 | Channel calibration for a time division duplexed communication system | Electricity | 92 | Active |
| US8462643B2 | MIMO WLAN system | Electricity | 84 | Active |
| US8203978B2 | Multi-mode terminal in a wireless MIMO system | Electricity | 83 | Active |
| US6252865A | Methods and apparatuses for fast power control of signals transmitted on a multiple access channel | Electricity | 83 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.