Picture distribution system and method thereof
US7400592B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2000 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Aug 9, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A plurality of distribution devices accommodate one or more respective cameras. Respective picture monitors are connected to a plurality of receiving devices. The plurality of distribution devices and the plurality of receiving devices are connected by a transmission line. This transmission line is in a ring shape, and transmits picture data by a time division multiplex method. On receipt of a request related to picture display from a user terminal, a central device transmits an instruction to the plurality of distribution devices and to the plurality of receiving devices, according to a usage condition of the transmission line and the number of simultaneously distributed pictures. The plurality of distribution devices distribute picture data according to the instruction, and the plurality of receiving devices receive the picture data according to the instruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.