Amplifiers – With semiconductor amplifying device – Including atomic particle or radiant energy impinging on a...
Reexamination Certificate
2011-01-11
2011-01-11
Nguyen, Khanh V (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including atomic particle or radiant energy impinging on a...
C250S2140AG
Reexamination Certificate
active
07868701
ABSTRACT:
A gain switching determination circuit (250) compares/determines a comparative input voltage (Vc) from an inter-stage buffer (230) with a first hysteresis characteristic, and outputs a gain switching signal (SEL) based on the comparison/determination result to first and second transimpedance amplifier core circuits (210, 220), thereby switching the gains of the core circuits. This obviates holding a comparison input voltage with long response time in a level holding circuit for gain switching determination, which allows instantaneous gain switching determination and instantaneous response corresponding to burst data.
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Akatsu Yuji
Endou Jun
Hyodo Eiji
Iizuka Hatsushi
Imai Yuuki
Blakely & Sokoloff, Taylor & Zafman
Nguyen Khanh V
Nippon Telephone and Telegraph Corporation
NTT Electronics Corporation
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