Apparatus for receiving cable TV broadcasting program, and multiplexer and de-multiplexer thereof
US7848365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2006 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Oct 7, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4508
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are an apparatus for receiving cable broadcasting programs and a multiplexer and a de-multiplexer thereof for reducing data amount processed in a Cable CARD and for correcting synchronization of descrambled data stream. The apparatus includes: a multiplexing unit for filtering a broadcasting stream to select only programs selected by a viewer and multiplexing the selected programs; a conditional-access processing unit for receiving the multiplexed streams and processing the multiplexed streams for conditional access (descrambling); and a de-multiplexing unit for de-multiplexing the multi stream from the conditional-access processing unit and correcting a program clock reference (PCR).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.