David Akopian
31Patents
9h-index
23Co-inventors
75Inventor score
Filing activity: May 30, 2000 → Apr 27, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7272168B2 | Determining the correlation between received samples and available replica samples | Electricity | 41 | Expired |
| US6909738B2 | Method in a receiver and a receiver | Electricity | 30 | Expired |
| US6894645B1 | Position estimation | Physics | 30 | Expired |
| US6473694B1 | Method, apparatus and system for estimating user position with a satellite positioning system in poor signal conditions | Physics | 29 | Expired |
| US6735243B1 | Method, apparatus and system for fast acquisition of a spread spectrum signal | Physics | 19 | Expired |
| US6466164B1 | Method and apparatus for calculating pseudorange for use in ranging receivers | Physics | 19 | Expired |
| US6459407B1 | Cross-correlation system for time recovery in network-assisted GPS positioning | Physics | 15 | Expired |
| US6573799B1 | Clock system and corresponding method for providing a clock time accounting for systematic error | Physics | 13 | Expired |
| US6771215B2 | Determination of the transmission time of a signal part in a positioning system | Physics | 12 | Expired |
| US7965861B2 | Methods and systems for digital image security | Physics | 8 | Active |
| US10511392B2 | Systems, methods, and computer programs for wireless local area network localization | Electricity | 8 | Active |
| US6810072B1 | System for acquiring spread spectrum signals | Electricity | 8 | Expired |
| US6768451B2 | Method for determining the correlation between a received beacon signal and a reconstructed signal | Physics | 7 | Expired |
| US8369568B2 | Methods and systems for digital image security | Physics | 7 | Active |
| US7876738B2 | Preventing an incorrect synchronization between a received code-modulated signal and a replica code | Physics | 4 | Active |
| US6909736B2 | System for method for fine acquisition of a spread spectrum signal | Electricity | 4 | Expired |
| US6651031B2 | Method for providing time using a multiple-clock model and a clock system using such a model | Physics | 4 | Expired |
| US7120191B2 | Method and apparatus for acquiring a ranging signal of a positioning system | Electricity | 3 | Expired |
| US9741256B2 | Remote laboratory gateway | Physics | 2 | Active |
| US8548106B2 | Crosscorrelation interference mitigating position estimation systems and methods therefor | Electricity | 1 | Active |
| US7064708B2 | Validation of beacon signals | Physics | 1 | Expired |
| US7277476B2 | Determining the correlation between received samples and available replica samples | Electricity | 1 | Expired |
| US7336696B2 | Acquisition of a code modulated signal | Electricity | 1 | Expired |
| US11105932B2 | Method and system for detecting and mitigating time synchronization attacks of global positioning system (GPS) receivers | Physics | 0 | Active |
| US7286594B2 | Determination of the correlation phase between a signal and a replica sequence | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.