Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenji Yamamoto0
Hiroshi Ito0
Date of Patent
November 11, 2008
0Patent Application Number
108738860
Date Filed
June 22, 2004
0Patent Primary Examiner
Patent abstract
A photocoupler having a first and second light-emitting diodes, a compensation circuit, which compensates input signals to the first light-emitting diode and generates input signals to the second light-emitting diode, and further makes the current waveform at the second light-emitting diode complementary to the current waveform at the first light-emitting diode, and at least one photodiode that detects the light emitted from the first and second light-emitting diodes.
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