Distribution of broadcast content for remote decryption and viewing
Abstract
Program materials received from a direct broadcast satellite system are distributed between a host receiver and a client receiver for remote decryption. Using either the same host and client pairing keys or different host and client pairing keys (500,600), an encrypted media encryption key is received at both the host and client receivers (702,732,752) and the encrypted media encryption key is decrypted at both the host and client receivers using the appropriate pairing key (706,710,720,736,740,754). Encrypted program materials are received from the broadcast system at the host receiver (700,730), and the encrypted program materials are decrypted at the host receiver using the media encryption key (716,746). The encrypted program materials are also transferred from the host receiver to the client receiver (728,762), where the encrypted program materials are decrypted at the client receiver using the media encryption key (726,760).

Term
Term ended
Projected expiry passed 17 January 2025, 1.7 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| WO03032553A2 | Cites | World Intellectual Property Organization (WIPO) | X | Search report | 1-28 |
| US2002001386A1 | Cites | United States of America | A | Search report | 1-28 |
| US6157719A | Cites | United States of America | A | Search report | 1-28 |
4 priority claims, no other members on record
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 758818 | United States of America | – | |
| 75881804 | United States of America | A | |
| 758818 | – | – | – |
| US20040758818 | – | – | – |
11 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application withdrawnWithdrawn18W | 18W | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION HAS BEEN WITHDRAWNSTAA | STAA | |
| First examination report despatched17Q | 17Q | |
| Designation fees paidAKX | AKX | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 1585329
- Publication, DOCDB
- 1585329
- Publication, EPODOC
- EP1585329
- Application
- 5250221
- Application, DOCDB
- 05250221
- Application, EPODOC
- EP20050250221
Titles3
- German
- Verteilung von Rundfunkinhalt zum Fernentschlüsseln und Fernbeobachten
- English
- Distribution of broadcast content for remote decryption and viewing
- French
- Distribution du contenu de diffusion pour le déchiffrement et visualisation à distance
Classification
- CPC, 10
- H04N7/1675
- H04N21/26606
- H04N21/26613
- H04N21/4181
- H04N21/43615
- H04N21/4367
- H04N21/4405
- H04N21/4408
- H04N21/4623
- H04N21/63345
- IPC, 2
- H04N7 16
- H04N7 167
Designated states36
- Contracting states, 30
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Hungary
- Ireland
- Iceland
- Italy
- Liechtenstein
- Lithuania
- Luxembourg
- Monaco
- Netherlands (Kingdom of the)
- Poland
and 6 moreShow fewer
- Portugal
- Romania
- Sweden
- Slovenia
- Slovakia
- Türkiye
- Extension states, 6
- Albania
- Bosnia and Herzegovina
- Croatia
- Latvia
- North Macedonia
- Yugoslavia, later Serbia and Montenegro (until 2006)