Thomson Multimedia
137Patents
0Active
137Granted
42Portfolio score
Filing activity: Nov 30, 1993 → Mar 16, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5734413A | Transaction based interactive television system | Electricity | 371 | Expired |
| US5949398A | Select line driver for a display matrix with toggling backplane | Physics | 344 | Expired |
| US6091883A | Method and device for recording and reading on a large-capacity medium | Electricity | 319 | Expired |
| US5764275A | Interactive television security through transaction time stamping | Electricity | 270 | Expired |
| US6023267A | Process for selecting programes, especially television programes and device and graphical interface implementing this process | Electricity | 225 | Expired |
| US5638113A | Transaction based interactive television system | Electricity | 211 | Expired |
| US5859630A | Bi-directional shift register | Physics | 188 | Expired |
| US5905535A | Differential coding of motion vectors using the median of candidate vectors | Electricity | 149 | Expired |
| US5903324A | Transport processor interface for a digital television system | Electricity | 115 | Expired |
| US6035038A | Conditional access system and smartcard allowing such access | Electricity | 101 | Expired |
| US5621467A | Temporal-spatial error concealment apparatus and method for video signal processors | Electricity | 94 | Expired |
| US5995154A | Process for interpolating progressive frames | Electricity | 86 | Expired |
| US5956097A | System for automatically controlling the tuning of television receiver receiving channels | Electricity | 69 | Expired |
| US6266415A | Process for protecting an information item transmitted from a security element to a decoder and protection system using such a process | Electricity | 68 | Expired |
| US5731837A | Quantization circuitry as for video signal compression systems | Electricity | 66 | Expired |
| US5610661A | Automatic image scanning format converter with seamless switching | Electricity | 62 | Expired |
| US6148107A | Quantization process for video encoding | Electricity | 61 | Expired |
| US5805230A | Method for automatic programming of a tuner and device for implementation of the method | Electricity | 61 | Expired |
| US5574505A | Method and apparatus for operating a transport stream encoder to produce a stream of packets carrying data representing a plurality of component signals | Electricity | 58 | Expired |
| USD388077S | Screen for a television set | General | 58 | Expired |
| US5828788A | System for processing data in variable segments and with variable data resolution | Electricity | 58 | Expired |
| US6072628A | Optical polarisation device | Physics | 56 | Expired |
| US5530484A | Image scanning format converter suitable for a high definition television system | Electricity | 46 | Expired |
| US5790937A | Method and apparatus for the distribution of multi-media documents | Electricity | 46 | Expired |
| US5777910A | Sparse equalization filter adaptive in two dimensions | Electricity | 41 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.