System for processing a video signal via series-connected high speed signal processing smart cards
US6035037A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1997 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Jan 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/163
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system processes a video signal that includes a plurality of signal components representing respective ones of a plurality of video programs such as various pay-TV programs. Each of the signal components is processed, e.g., descrambling a pay-TV program, by one of a plurality of series connected high speed signal processing integrated circuit (IC) cards, or "smart" cards. An output signal from the last smart card in the series connection includes a plurality of processed signal components. The plurality of processed signal components are processed further to produce a signal suitable for producing a displayed image that includes multiple image portions, such as a picture-in-picture (PIP) or picture-outside-picture (POP) image in a television system. Each portion of the image is produced in response to one of the processed signal components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.