Title:
OPTICAL NODE DEVICE AND SIGNAL SUPERIMPOSING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/119351
Kind Code:
A1
Abstract:
This optical node device comprises: a modulation amplitude correcting unit that generates correction information used for correcting the amplitude of a modulation signal based on a control signal such that the superimposition ratio in superimposing, on an optical signal, the control signal used for controlling a subscriber device is a desired superimposition ratio; a driver that converts an externally inputted control signal to the modulation signal and that adjusts the amplitude of the modulation signal by using the correction information generated by the modulation amplitude correcting unit; and a superimposition unit that superimposes, on the optical signal, the modulation signal as adjusted by the driver.
Inventors:
KANAI TAKUYA (JP)
HARA KAZUTAKA (JP)
KANEKO SHIN (JP)
HARA KAZUTAKA (JP)
KANEKO SHIN (JP)
Application Number:
PCT/JP2021/046963
Publication Date:
June 29, 2023
Filing Date:
December 20, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04B10/50
Foreign References:
| JP2019009656A | 2019-01-17 | |||
| JP2004129219A | 2004-04-22 | |||
| JP2017153148A | 2017-08-31 | |||
| JP2006319709A | 2006-11-24 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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