Method of distributing audio programming to passenger entertainment systems, and apparatus
US5404567A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1993 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Jul 16, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/415
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for automating the distribution of audio programming to passenger entertainment systems on-board carriers such as aircraft. Audio signals containing the audio programming are encoded to produce compressed digital audio data signals, and the compressed digital data from the encoded signals are stored and subsequently distributed from a central distribution facility to a plurality of local distribution facilities located at or in the vicinity of airports. The compressed digital data is stored at each of the local distribution facilities, and is subsequently distributed to passenger entertainment systems on-board aircraft locally situated with respect to respective ones to the local distribution facilities. The aircraft received data is stored onto computer storage media, such as computer hard-disks, resident in the passenger entertainment systems on-board the aircraft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.