Amplifiers – With semiconductor amplifying device – Including atomic particle or radiant energy impinging on a...
Reexamination Certificate
2005-04-26
2005-04-26
Nguyen, Khanh Van (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including atomic particle or radiant energy impinging on a...
C250S297000
Reexamination Certificate
active
06885249
ABSTRACT:
An optical signal receiving circuit disclosed herein comprises: a first transimpedance amplifier configured to convert a first current signal into a first voltage signal, wherein the first current signal is generated in a first photodiode, to which an optical signal is inputted; a reference voltage generating circuit configured to generate a second voltage signal which is independent of the first voltage signal and which is a signal of a reference voltage; a level shift circuit configured to shift at least one of the first voltage signal and the second voltage signal in a close direction and output it, wherein the close direction is a direction in which the center voltage of the amplitude of the first voltage signal and the voltage of the second voltage signal get closer; and a differential amplifier which amplifies a difference between the first voltage signal and the second voltage signal.
REFERENCES:
patent: 5247211 (1993-09-01), Sakura
patent: 5777507 (1998-07-01), Kaminishi et al.
patent: 6038049 (2000-03-01), Shimizu et al.
patent: 6072366 (2000-06-01), Maeda et al.
patent: 63-25738 (1988-05-01), None
Kabushiki Kaisha Toshiba
Nguyen Khanh Van
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