IPPV programming distribution control system
US4975951A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1990 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Feb 26, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A distribution control system for controlling the distribution of scrambled impulse pay per view (IPPV) programming from a plurality of different IPPV programmers to a plurality of descramblers. The system includes a plurality of business data processing systems, a plurality of channel control systems respectively related to a plurality of the given IPPV programmers and an IPPV management system. The business data processing systems process view history data identifying descrambled IPPV programs and credit data for individual descramblers and cost data for IPPV programs provided by given IPPV programmers and provide credit data and IPPV authorization data pertaining to individual descramblers. Each of the channel control systems provides descrambler messages containing identification, cost and IPPV status data for individual IPPV programs. The IPPV data management system processes the credit data and IPPV authorization data provided by the business data processing systems to provide descrambler messages unique to each descrambler containing credit data and IPPV authorization data pertaining to the individual descrambler. The IPPV management system also sorts the IPPV program identi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.