Invention Grant
US08831081B2 Digital filter device, digital filtering method and control program for the digital filter device
有权
数字滤波装置，数字滤波方法及数字滤波装置的控制程序
- Patent Title: Digital filter device, digital filtering method and control program for the digital filter device
- Patent Title (中): 数字滤波装置，数字滤波方法及数字滤波装置的控制程序
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Application No.: US13393066Application Date: 2011-08-18
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Publication No.: US08831081B2Publication Date: 2014-09-09
- Inventor: Junichi Abe , Hidemi Noguchi
- Applicant: Junichi Abe , Hidemi Noguchi
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2010-195370 20100901
- International Application: PCT/JP2011/069103 WO 20110818
- International Announcement: WO2012/029613 WO 20120308
- Main IPC: H03H7/30
- IPC: H03H7/30 ; H04B10/61 ; H04B3/14 ; H03H17/02 ; H04L25/03
Abstract:
In order to solve a problem of achieving distortion compensation with high accuracy, a digital filter device includes a first distortion compensation filter unit for conducting distortion compensation of first waveform distortion included in an inputted signal through digital signal processing, a first filter coefficient setting unit for setting a filter coefficient of the first distortion compensation filter unit, a second distortion compensation filter unit for compensating second waveform distortion included in a signal outputted from the first distortion compensation filter unit, and a second filter coefficient setting unit for setting a filter coefficient of the second distortion compensation filter unit based on the filter coefficient set by the first filter coefficient setting unit.
Public/Granted literature
- US20130287390A1 DIGITAL FILTER DEVICE, DIGITAL FILTERING METHOD AND CONTROL PROGRAM FOR THE DIGITAL FILTER DEVICE Public/Granted day:2013-10-31
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