Title:
信号レベル検出装置、光受信装置、および信号レベル検出方法
Document Type and Number:
Japanese Patent JP4705524
Kind Code:
B2
Abstract:
An amplifying unit performs a differential amplification with a highest level or a lowest level of an input signal and a previous input signal. A semiconductor element transfers a signal level output from the amplifying unit from a second terminal to a third terminal by using a current conducted from the second terminal to the third terminal in response to a voltage applied to a first terminal. A control unit controls the voltage applied to the first terminal of the semiconductor element based on a voltage or a current related to a reference semiconductor element. A holding unit holds a signal level output from the third terminal of the semiconductor element.
More Like This:
Inventors:
Satoshi Ide
Application Number:
JP2006165234A
Publication Date:
June 22, 2011
Filing Date:
June 14, 2006
Export Citation:
Assignee:
Fujitsu Optical Components Limited
International Classes:
H03F3/45; H03F3/08; H04B10/07; H04B10/40; H04B10/50; H04B10/60; H04B10/69
Domestic Patent References:
| JP52150079A | ||||
| JP5175804A | ||||
| JP10038930A | ||||
| JP10261940A | ||||
| JP2000286678A | ||||
| JP56099944U | ||||
| JP2002090396A | ||||
| JP2000304776A |
Foreign References:
| US6624683 |
Attorney, Agent or Firm:
Hiroaki Sakai