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

Claim 0:
1. An optical transmission apparatus comprising:
a signal processor configured to convert a first data stream into a first electrical signal and a second electrical signal in a first case;
a first optical transmitter configured to convert the first electrical signal into a first optical signal in the first case;
a second optical transmitter configured to convert the second electrical signal into a second optical signal in the first case; and
an output interface configured to output 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 a fourth electrical signal in a second case which is different in time from the first case;
the first optical transmitter converts the third electrical signal into a third optical signal in the second case;
the second optical transmitter converts the fourth electrical signal into a fourth optical signal in the second case; and
the output interface outputs the third optical signal to a second optical reception apparatus and outputs the fourth optical signal to a third optical reception apparatus in the second case.