Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 11, 2007
Patent Application Number
10711294
Date Filed
September 8, 2004
Patent Primary Examiner
Patent abstract
The invention relates to an echo cancellation device for a full duplex communication system. The echo cancellation device utilizes a pull-up current source to increase the DC level, so as to improve the echo cancellation performance with avoiding signal distortion. And the pull-up current source used in the echo cancellation device can be implemented to a fixed current source or an adjustable current source.
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