France Telecom and Telediffusion De France
13Patents
0Active
13Granted
34Portfolio score
Filing activity: Apr 16, 1992 → Jun 6, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5406570A | Method for a maximum likelihood decoding of a convolutional code with decision weighting, and corresponding decoder | Electricity | 143 | Expired |
| US5357502A | Device for the reception of digital data time frequency interlacing, notably for radio broadcasting at high bit rate towards mobile receivers with nyquist temporal window | Electricity | 91 | Expired |
| US6119264A | Data block convolutional coding device and method, and corresponding decoding method and device | Electricity | 78 | Expired |
| US5305383A | Method of electronic payment by chip card by means of numbered tokens allowing the detection of fraud | Physics | 41 | Expired |
| US5253059A | Method and circuit for adjusting the size of a video frame | Electricity | 37 | Expired |
| US6459744B1 | Multi-carrier symbol synchronization | Electricity | 28 | Expired |
| US5327366A | Method for the adaptive filtering of a transformed signal in sub-bands and corresponding filtering method | Electricity | 22 | Expired |
| US6278686A | Construction of a multicarrier signal | Electricity | 18 | Expired |
| US6549206B1 | Graphic scene animation signal, corresponding method and device | Electricity | 14 | Expired |
| US6058118A | Method for the dynamic reconfiguration of a time-interleaved signal, with corresponding receiver and signal | Electricity | 12 | Expired |
| US6556207B1 | Graphic scene animation data signal with quantization object, corresponding method and device | Physics | 7 | Expired |
| US5768165A | Digital time signal filtering method and device for transmission channel echo correction | Electricity | 6 | Expired |
| US6999629B1 | Image coding/decoding method | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.