Invention Grant
- Patent Title: Optical receiver circuit and optical coupling device
- Patent Title (中): 光接收器电路和光耦合器件
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Application No.: US12652401Application Date: 2010-01-05
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Publication No.: US08155537B2Publication Date: 2012-04-10
- Inventor: Hisami Saitou , Miki Furuya
- Applicant: Hisami Saitou , Miki Furuya
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Turocy & Watson, LLP
- Priority: JP2009-000429 20090105; JP2009-263153 20091118
- Main IPC: H04B10/06
- IPC: H04B10/06

Abstract:
An optical receiver circuit and an optical coupling device, which includes: a light-receiving element; TIA operable to output a first voltage signal in response to input of the current signal; a voltage source operable to supply a second voltage signal serving as a reference voltage for determining pulse switching; a voltage source operable to supply a third voltage signal serving as a reference voltage for generating a shift control signal; a level shift circuit operable to output a voltage signal generated by subtracting a level shift voltage from the first voltage signal; a comparator operable to convert the first voltage signal to a pulse, and a controller operable to output the shift control signal outputting the first voltage signal shifted to a low-level side when the first voltage signal exceeds the third voltage signal, and outputting the first voltage signal without shifting after the output of the level shift circuit is lowered below the second voltage signal, are provided.
Public/Granted literature
- US20100172656A1 OPTICAL RECEIVER CIRCUIT AND OPTICAL COUPLING DEVICE Public/Granted day:2010-07-08
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