| 发明名称 | Receiver and reception method | ||
| 摘要 | A photodiode (11) of a receiver (10) outputs a current signal having a value that corresponds to the optical power of a received optical signal. A transimpedance amplifier (12) amplifies the current signal output from the photodiode (11), converts the current signal to a voltage signal, and further outputs the voltage signal that is converted from the current signal. A current detection circuit (17) generates a current having a value larger than that of the current signal output from the photodiode (11). A feedback resistor (16) changes a gain of the transimpedance amplifier (12) based on magnitude of the current generated by the current detection circuit (17). | ||
| 申请公布号 | US9503198(B2) | 申请公布日期 | 2016.11.22 |
| 申请号 | US201214402203 | 申请日期 | 2012.09.27 |
| 申请人 | Mitsubishi Electric Corporation | 发明人 | Noda Masaki |
| 分类号 | H04B10/06;H04B10/61;H03G3/30 | 主分类号 | H04B10/06 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. A receiver comprising: an optical receiver that outputs a current signal including a value that corresponds to strength of an optical signal received; an amplifier-converter that amplifies the current signal output from the optical receiver, converts the amplified current signal to a voltage signal, and outputs the voltage signal that is converted from the amplified current signal; a current generator that generates a current in response to the current signal output from the optical receiver that has a value larger than that of the current signal and a changer having a variable resistance that changes a gain of the amplifier-converter based on magnitude of a current generated by the current generator. | ||
| 地址 | Chiyoda-ku JP | ||