Patent ID: 11936431
Assignee: NEC CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. An optical transmission method comprising:
converting, by a signal processor, a first data stream into a first electrical signal and a second electrical signal in a first case;
converting, by a first optical transmitter, the first electrical signal into a first optical signal in the first case;
converting, by a second optical transmitter, the second electrical signal into a second optical signal in the first case; and
outputting, by an output interface, the first optical signal and the second optical signal to a first optical reception apparatus in the first case,
wherein the signal processor converts a second data stream into a third electrical signal and converts a third data stream into the fourth electrical signal in a second case which is different in time from the first case,
wherein the third electrical signal is converted by the first optical transmitter into a third optical signal in the second case,
wherein the fourth electrical signal is converted by the second optical transmitter into a fourth optical signal in the second case, and
wherein the third optical signal is outputted by the output interface to a second optical reception apparatus and the fourth optical signal is outputted by the output interface to a third optical reception apparatus in the second case.