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US 11,705,965 B2Granted
Optical communication device
AssigneeMitsubishi Electric Corporation
InventorYuji Yokohama
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AssigneeMitsubishi Electric Corporation
InventorYuji Yokohama
Estimating the term…
An ONU includes a communication unit, an abnormal light emission prevention unit, and a control unit that transmits a data signal and a transmission permission signal to the communication unit and transmits the transmission permission signal to the abnormal light emission prevention unit between a transmission start time and a transmission end time. When the transmission permission signal is received, the communication unit, transmits an optical signal to an OLT, and transmits an operation signal to the abnormal light emission prevention unit during the transmission of the optical signal. The abnormal light emission prevention unit transmits a stop signal to the communication unit when a difference between a time for which the transmission permission signal is received and a time for which the operation signal is received is greater than or equal to a threshold value. The communication unit stops when the stop signal is received.
An optical communication device as a slave station device that communicates with a master station device, comprising:
An optical communication device as a slave station device that communicates with a master station device, comprising:
An optical communication device as a slave station device that communicates with a master station device, comprising:
Dependencies are inferred from the claim text.