Optical receiving device
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United States of America Patent
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Feb 14, 2006
Grant Date -
May 5, 2005
app pub date -
Dec 29, 2003
filing date -
Nov 4, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
An optical receiving device. The optical receiving device has a photodiode, transimpedance amplifier, and a feedback component. The photodiode has a first terminal coupled to a voltage source and a second terminal. When detecting an optical signal, the photodiode generates a current signal output from the second terminal. The transimpedance amplifier converts the current signal to a voltage signal and outputs the voltage. The feedback component is coupled between the first terminal and a input terminal of the transimpedance amplifier. The feedback component feeds a first voltage-changing signal, occurring in the input terminal of the transimdepance amplifier with the current signal, to the first terminal.
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