Irdeto Access B.V.
24Patents
12Active
24Granted
39Portfolio score
Filing activity: Aug 30, 1999 → Jul 21, 2009 · 12 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7107462B2 | Method and system to store and distribute encryption keys | Electricity | 233 | Expired |
| US7058809B2 | Method and system to uniquely associate multicast content with each of multiple recipients | Electricity | 66 | Expired |
| US8090104B2 | Method of descrambling a scrambled content data object | Electricity | 26 | Active |
| US7376829B2 | Terminal, data distribution system comprising such a terminal and method of re-transmitting digital data | Electricity | 22 | Expired |
| US8300812B2 | Methods of scrambling and descrambling units of data | Electricity | 20 | Active |
| US7739496B2 | Secure packet-based data broadcasting architecture | Electricity | 18 | Expired |
| US7116892B2 | System for providing scrambled content, and system for descrambling scrambled content | Electricity | 16 | Expired |
| US7552457B2 | Method of controlling descrambling of a plurality of program transport streams, receiver system and portable secure device | Electricity | 12 | Active |
| US7171553B2 | Method for providing a secure communication between two devices and application of this method | Electricity | 9 | Expired |
| US7050588B1 | System for processing an information signal | Electricity | 9 | Expired |
| US7155611B2 | Method of operating a conditional access system for broadcast applications | Electricity | 8 | Expired |
| US8135949B2 | Digital content distribution | Electricity | 7 | Active |
| US7245720B2 | Method for controlling the use of a program signal in a broadcast system, and control device for a receiver for carrying out such a method | Electricity | 6 | Expired |
| US7433472B2 | Digital content distribution system | Electricity | 5 | Expired |
| US7336789B1 | System for providing encrypted data, system for decrypting encrypted data and method for providing a communication interface in such a decrypting system | Electricity | 5 | Expired |
| US7296162B2 | Time validation system | Electricity | 4 | Expired |
| US7467284B2 | Method and system of externalising/internalising data record that allow processing of part or all of the record | Physics | 4 | Active |
| US8006249B2 | Method of implementing a state tracking mechanism in a communications session between a server and a client system | Electricity | 3 | Active |
| US8165293B2 | Method and system providing scrambled content | Electricity | 3 | Active |
| US8213604B2 | Signcryption scheme based on elliptic curve cryptography | Electricity | 2 | Active |
| US7676598B2 | Method of controlling communication between a head-end system and a plurality of client systems | Electricity | 2 | Active |
| US7992211B2 | Method and device for authorising conditional access | Electricity | 1 | Active |
| US7978852B2 | Method of partially scrambling a data stream | Electricity | 1 | Active |
| US7814269B2 | Method and system of externalising / internalising a data record that allow processing of part or all of the record | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.