Patent ID: 8086114
Filing Date: 2011-12-27
Classification: H04B

Abstract:
1. A filter coefficient changing apparatus for use in a dual-polarized optical coherent receiver, wherein the dual-polarized optical coherent receiver comprising a front-end processing section and a data recovering unit; the front-end processing section performing front-end processing on an input signal including a first information source (h) and a second information source (v), and outputting a first component signal ( 115 ) and a second component signal ( 116 ); the data recovering unit recovering data and including a first receiving branch and a second receiving branch: the first receiving branch including: a first filtering unit ( a second filtering unit ( a first filter coefficient updating unit ( the second receiving branch including: a third filtering unit ( a fourth filtering unit ( a second filter coefficient updating unit ( wherein the filter coefficient changing apparatus comprises a controlling unit ( wherein the switching unit ( wherein, in the case the switching unit ( wherein the controlling unit ( and wherein the switching unit (