Equalizer device, communication system, and equalization method
AssigneeNEC Corporation
InventorMasao TANEHASHI
Life of this patent
Estimating the term…
Abstract
An equalizer device which includes: an optical matrix switch including a first terminal group including at least two first terminals and a second terminal group including at least two second terminals; an equalizer group including at least two equalizers, an input end of each of the equalizers being connected to one of the second terminals included in the second terminal group, and an output end of each of the equalizers being connected to one of the first terminals included in the first terminal group; and controller that changes connection state between the first terminal and the second terminal.
Claims10
An equalizer device comprising:
- an optical matrix switch including a first terminal group including at least two first terminals and a second terminal group including at least two second terminals;
- an equalizer group including at least two equalizers, an input end of each of the equalizers being connected to one of the second terminals included in the second terminal group, and an output end of each of the equalizers being connected to one of the first terminals included in the first terminal group;
- and
- controller that changes connection state between the first terminal and the second terminal.
An equalization method in an equalizer device including;
- an optical matrix switch including a first terminal group including at least two first terminals and a second terminal group including at least two second terminals;
- and an equalizer group including at least two equalizers, an input end of each of the equalizers being connected to one of the second terminals included in the second terminal group, and an output end of each of the equalizers being connected to one of the first terminals included in the first terminal group;
- the equalization method comprising:
- compensating for a tilt level of an externally input optical input signal by changing a connection state between the first terminal and the second terminal;
- and
- outputting a tilt-level-compensated optical signal as an optical output signal.
Dependencies are inferred from the claim text.