| 发明名称 | Signal shaping circuit | ||
| 摘要 | A signal shaping circuit that shapes a drive signal and includes a main-signal amplifying circuit that amplifies the drive signal; a preemphasis generating circuit that symmetrically emphasizes a rising portion and a falling portion of the drive signal; a current source that is provided in the main-signal amplifying circuit; and a condenser that couples the main-signal amplifying circuit and the preemphasis generating circuit. | ||
| 申请公布号 | US8791652(B2) | 申请公布日期 | 2014.07.29 |
| 申请号 | US201113330299 | 申请日期 | 2011.12.19 |
| 申请人 | Fujitsu Limited | 发明人 | Oku Hideki;Tsunoda Yukito |
| 分类号 | H03L5/00;H05B37/02 | 主分类号 | H03L5/00 |
| 代理机构 | Fujitsu Patent Center | 代理人 | Fujitsu Patent Center |
| 主权项 | 1. A signal shaping circuit that shapes a drive signal, comprising: a main-signal amplifying circuit that amplifies the drive signal; a preemphasis generating circuit that symmetrically emphasizes a rising portion and a falling portion of the drive signal; and a current source that is provided in the main-signal amplifying circuit, and coupled to the main-signal amplifying circuit via a condenser so as to provide a direct current to elements in the main-signal amplifying circuit but not to elements in the preemphasis generating circuit. | ||
| 地址 | Kawasaki JP | ||