Dan M. Griffin
35Patents
9h-index
38Co-inventors
75Inventor score
Filing activity: Mar 24, 1977 → May 2, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5917852A | Data scrambling system and method and communications system incorporating same | Electricity | 114 | Expired |
| US7609751B1 | Method and apparatus to initiate communications between an unknown node and an existing secure network | Electricity | 45 | Active |
| US6011788A | S-CDMA fixed wireless loop system employing subscriber unit/radio base unit super-frame alignment | Electricity | 29 | Expired |
| US5966373A | Waveform and frame structure for a fixed wireless loop synchronous CDMA communications system | Electricity | 29 | Expired |
| US5774022A | Digital clock recovery loop | Electricity | 28 | Expired |
| US7190683B2 | Two-dimensional channel bonding in a hybrid CDMA/FDMA fixed wireless access system to provide finely variable rate channels | Electricity | 27 | Expired |
| US5651028A | Data transmission system with a low peak-to-average power ratio based on distorting frequently occuring signals | Electricity | 24 | Expired |
| US7633995B1 | System and method for receiving spread spectrum encoded bursts using a common spreading code | Electricity | 20 | Active |
| US6285261A | Digital clock recovery loop | Electricity | 17 | Expired |
| US7130333B2 | Method and device for frame sync detection using channel combining and correlation | Electricity | 9 | Expired |
| US4118782A | Digital sound velocity calculator | Physics | 9 | Expired |
| US6999446B2 | Adaptive, multi-rate waveform and frame structure for a synchronous, DS-CDMA system | Electricity | 7 | Expired |
| US7634033B1 | Spread spectrum detection system and method | Electricity | 7 | Active |
| US4653074A | Bit sync generator | Electricity | 7 | Expired |
| US7606292B1 | Sub-sequence accumulation filter and method | Electricity | 7 | Active |
| US7602834B1 | System and method for determining a fine frequency offset of a received signal | Electricity | 7 | Active |
| US5982237A | Digital clock recovery loop | Electricity | 6 | Expired |
| US7602835B1 | Multi-rate spread spectrum composite code | Electricity | 5 | Expired |
| US7313196B1 | Method and system for baseband amplitude limiting | Electricity | 4 | Expired |
| US7760697B1 | Fast and long range node discovery in spread spectrum networks | Electricity | 4 | Active |
| US7209494B1 | Digital reverse transmission frequency training method for time division duplex (TDD) communication system | Electricity | 4 | Expired |
| US5914961A | Fixed wireless loop system having dual direct synthesizer | Electricity | 4 | Expired |
| US7545878B1 | Efficient circular clipping implementation using simplified CORDIC rotators | Physics | 4 | Active |
| US7664164B1 | Correlation apparatus and method for accomodating spreading code frequency offset | Electricity | 3 | Active |
| US4121290A | Analog sound velocity calculator | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.