| 发明名称 | Transmitting device, communication system, and method for transmission level control | ||
| 摘要 | A transmitting device includes a transmitter configured to transmit signal light to an external receiver over a medium included in a transmission line; and a controller configured to control a transmission level of the signal light in accordance with a reception level of probe light which is input from the receiver over the medium in the transmission line. | ||
| 申请公布号 | US9438343(B2) | 申请公布日期 | 2016.09.06 |
| 申请号 | US201313954024 | 申请日期 | 2013.07.30 |
| 申请人 | FUJITSU LIMITED | 发明人 | Shukunami Norifumi;Komaki Kosuke |
| 分类号 | H04B10/08;H04B17/00;H04J14/06;H04B10/12;H01S3/00;H04B10/25;H04B10/077;H04B10/079;H04B10/564;H04J14/02;H04B10/112 | 主分类号 | H04B10/08 |
| 代理机构 | Staas & Halsey LLP | 代理人 | Staas & Halsey LLP |
| 主权项 | 1. A transmitting device, comprising: a transmitter configured to transmit signal light to an external receiver over a medium included in a transmission line; and a controller configured to receive a probe light which is input from the external receiver over the medium in the transmission line in an opposite direction of the signal light, the probe light being unmodulated;calculate a transmission loss in the medium included in the transmission line based on a difference of a transmission level of the signal light and a reception level of the probe light; andcontrol the transmission level of the signal light by compensating for variations of transmission line loss in the medium included in the transmission line based on the calculated transmission loss. | ||
| 地址 | Kawasaki JP | ||