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Patent Searching and Data


Title:
EQUALIZER DEVICE, COMMUNICATION SYSTEM AND EQUALIZATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/167735
Kind Code:
A1
Abstract:
In order to enable reducing the number of optical devices while maintaining a configured number of tilt levels, this equalizer device is provided with: an optical matrix switch which comprises a first terminal group including at least two first terminals and a second terminal group including at least two second terminals; an equalizer group which includes at least two equalizers connected at the input terminal to one of the second terminals included in the second terminal group and connected at the output terminal to one of the first terminals included in the first terminal group; and a control means which switches the connection state of the first terminals and the second terminals.

Inventors:
TANEHASHI Masao (7-1 Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
Application Number:
JP2019/006225
Publication Date:
September 06, 2019
Filing Date:
February 20, 2019
Export Citation:
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Assignee:
NEC CORPORATION (7-1 Shiba 5-chome, Minato-ku Tokyo, 01, 〒1088001, JP)
International Classes:
H04B10/294; H04B3/06
Foreign References:
JP2007274022A2007-10-18
JPH09107313A1997-04-22
JPH1187812A1999-03-30
Attorney, Agent or Firm:
SHIMOSAKA Naoki (7-1 Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
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