US 2014/0112664 A1Published application

Optical transmission system and optical transmission method

AssigneeNEC Corporation

InventorMakoto SHIBUTANI

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Abstract

An optical transmission system 1 includes an optical transmitter 10 and an optical receiver 200. The optical transmitter 10 includes, a multiplexed code sequence generation unit 90a arranged to multiplex a code included in the transmission code sequence to be time shifted, and an optical transmission unit 90b that converts a multiplexed code sequence into a light signal and transmit it. The optical receiver 200 includes, an optical reception unit 240 that receives and converts the light signal transmitted from the optical transmitter 10 into a code sequence, and a transmission code sequence regeneration unit 380 that regenerates the transmission code sequence by identifying a code based on a value of a plurality of codes each corresponding to one another included in the code sequence.

Claims16

Dependent claims

An optical transmission system comprising:

an optical transmitter arranged to convert a transmission code sequence to a light signal and transmit the light signal;
and
an optical receiver arranged to receive the light signal and generate the transmission code sequence, wherein
the optical transmitter includes,
a multiplexed code sequence generation unit arranged to multiplex a code included in the transmission code sequence to be time shifted, the transmission code sequence being converted by a predetermined conversion rule, or being unconverted to appear multiple times,
an optical transmission unit arranged to convert a multiplexed code sequence generated at the multiplexed code sequence generation unit into a light signal and transmit the light signal,
the optical receiver includes,
an optical reception unit arranged to receive and convert the light signal transmitted from the optical transmitter into a code sequence, and
a transmission code sequence regeneration unit arranged to regenerate the transmission code sequence by identifying a code based on a value of a plurality of codes each corresponding to one another included in the code sequence converted by the optical reception unit.

6 more elements

An optical transmission method comprising:

a transmission step transmitting a light signal after converting a transmission code sequence into the light signal;
and
a reception step receiving the light signal and generating a transmission code sequence, wherein
the transmission step includes,
multiplexing a code included in the transmission code sequence to be time shifted, the transmission code sequence being converted by a predetermined conversion rule, or being unconverted to appear multiple times, and
converting a generated multiplexed code sequence into a light signal and transmitting the same,
the reception step includes,
receiving the transmitted light signal and converting the same into a code sequence, and
regenerating a transmission code sequence by identifying a code included in the converted code sequence based on a value of a plurality of codes each corresponding to another.

6 more elements

Dependencies are inferred from the claim text.