Aircraft in-flight entertainment system with robust daisy-chained network
US8621527B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2012 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | May 4, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4436
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An aircraft in-flight entertainment system includes a plurality of seat electronic units (SEUs) that are daisy chained through a packet data network (PDN) loop to a content server containing media content. The SEU includes a power supply, a communication switch, a processor, a communication interface, and a power control circuit. The power supply supplies power to the communication switch, the processor, and the communication interface. The communication switch selectively routes packets containing media content through the processor and the communication interface to the video display unit, or through a segment of the PDN loop to a downstream electronic unit. The power control circuit responds to the power supply supplying less than a threshold level of power by supplying power to the communication switch from the segment of the PDN loop connected to the upstream electronic unit and/or the downstream electronic unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.