Optical communications – Optical transceiver
Reexamination Certificate
2008-12-30
2011-10-25
Vanderpuye, Ken (Department: 2613)
Optical communications
Optical transceiver
C398S202000, C398S177000, C398S033000, C398S038000
Reexamination Certificate
active
08045860
ABSTRACT:
An optical transceiver stores an output A/D value which is A/D-converted from reference voltage in an EEPROM as correction data in preparing the optical transceiver. The optical transceiver, receiving a request for outputting a monitored value from an external device connected therewith, calculates a variation based on difference between the output A/D value which is A/D-converted from the reference voltage at the timing when the request for outputting the monitored value is received and the correction data stored in the EEPROM. Then, the optical transceiver uses the calculated variation to convert current of light-input power which is input thereinto into voltage, amplify the voltage, and A/D-convert the voltage to thereby correct the output A/D value. The optical transceiver outputs the corrected A/D value to the connected external device as the monitored value.
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Fujimoto Takahiro
Matsui Kensuke
Fujitsu Limited
Staas & Halsey , LLP
Vanderpuye Ken
Woldekidan Hibret
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