John E. Hoffmann
64Patents
18h-index
32Co-inventors
80Inventor score
Filing activity: Feb 23, 1999 → Nov 14, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6545994B2 | Access probe acknowledgment including collision detection to avoid oversetting initial power level | Electricity | 97 | Expired |
| US6301291A | Pilot symbol assisted modulation and demodulation in wireless communication systems | Electricity | 68 | Expired |
| US7609648B2 | Antenna steering for an access point based upon control frames | Electricity | 50 | Expired |
| US7079523B2 | Maintenance link using active/standby request channels | Electricity | 50 | Expired |
| US7006483B2 | Qualifying available reverse link coding rates from access channel power setting | Emerging Cross-Sectional Technologies | 46 | Expired |
| US9461698B2 | Communications device with simultaneous transmit and receive and related methods | Electricity | 45 | Active |
| US7103386B2 | Antenna steering and hidden node recognition for an access point | Electricity | 43 | Expired |
| US6804223B2 | Reverse link pilot integrated with block codes | Electricity | 39 | Expired |
| US6400317B2 | Method and apparatus for antenna control in a communications network | Electricity | 32 | Expired |
| US6212220A | Method and apparatus for creating non-interfering signals using non-orthogonal techniques | Electricity | 32 | Expired |
| US7577122B1 | Method for minimizing receive packet processing for a personal computer implementation of a wireless local area network adapter | Electricity | 31 | Active |
| US7047046B2 | Antenna steering for an access point based upon probe signals | Electricity | 27 | Expired |
| US7929409B2 | Orthogonal frequency division multiplexing (OFDM) method and apparatus for protecting and authenticating wirelessly transmitted digital information | Electricity | 26 | Active |
| US6801564B2 | Reverse link correlation filter in wireless communication systems | Electricity | 22 | Expired |
| US6904079B2 | Access channel structure for wireless communication system | Electricity | 22 | Expired |
| US7532723B2 | Tokens/keys for wireless communications | Electricity | 20 | Expired |
| US7145964B2 | Maximizing data rate by adjusting codes and code rates in CDMA system | Electricity | 20 | Expired |
| US6917642B1 | Method for using a non-orthogonal pilot signal with data channel interference cancellation | Electricity | 18 | Expired |
| US7580674B2 | Intelligent interface for controlling an adaptive antenna array | Electricity | 18 | Expired |
| US8160166B2 | Orthogonal frequency division multiplexing (OFDM) communications device and method that incorporates low PAPR preamble with circuit for measuring frequency response of the communications channel | Electricity | 18 | Active |
| US7587173B2 | Antenna steering for an access point based upon spatial diversity | Electricity | 17 | Expired |
| US7212499B2 | Method and apparatus for antenna steering for WLAN | Electricity | 13 | Expired |
| US8189697B2 | Orthogonal frequency division multiplexing (OFDM) communications device and method that incorporates low PAPR preamble and receiver channel estimate circuit | Electricity | 13 | Active |
| US8175178B2 | Orthogonal frequency division multiplexing (OFDM) communications device and method that incorporates low PAPR preamble and variable number of OFDM subcarriers | Electricity | 11 | Active |
| US8472537B2 | Systems and associated methods to reduce signal field symbol peak-to-average power ratio (PAPR) | Electricity | 10 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.