On-vehicle communication system, optical communication harness and optical distribution apparatus
US8929732B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 24, 2010 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Mar 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40273
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Plural optical communication apparatuses are connected through communication lines with a star topology to an optical coupler that is arranged at the center of star topology and can distribute input light. Each optical communication apparatus makes an optically transmitting unit input an optical signal into an optically inputting unit of the optical coupler, and makes an optically receiving unit receive an optical signal output from an optically outputting unit of the optical coupler, for detecting a collision based on the reception signal. After transmitting an optical signal from the optically transmitting unit, each of optical communication apparatuses makes the optically receiving unit receive the optical signal, performs the collision detection based on the comparison between the transmission signal and the reception signal. When having detected the collision, each of optical communication apparatuses stops own processing for transmitting the optical signal and performs processing for receiving optical signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.