Narrowcasting to one-way set top boxes
US12184910B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2023 |
| Grant date | Dec 31, 2024 |
| Priority date | — |
| Expiry date | Feb 20, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/64784
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems of narrowcasting to a service group having one or more one-way set top boxes are shown and disclosed. The method may include receiving encrypted single program transport streams (SPTSs) from an encryptor, and receiving one or more session control signals for the SPTSs from a switched digital video (SDV) control system. The method may additionally include receiving service information (SI) packet identifiers (PIDs) for the SPTSs from a conditional access (CA) system, and updating the SI PIDs based on the one or more session control signals. The method may further include converting the SPTSs to narrowcast multiprogram transport streams (MPTSs) based on the one or more session control signals, and transmitting the narrowcast MPTSs and the updated SI PIDs to a plurality of edge quadrature amplitude modulation (QAM) devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.