Invention Grant
- Patent Title: Distortion compensation circuit, transmitting apparatus and distortion compensating method
- Patent Title (中): 失真补偿电路，发送装置和失真补偿方法
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Application No.: US13141230Application Date: 2009-12-03
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Publication No.: US08848828B2Publication Date: 2014-09-30
- Inventor: Junya Ashita , Teppei Shoji
- Applicant: Junya Ashita , Teppei Shoji
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: NEC Corporation,Hitachi Kokusai Electric Inc.
- Current Assignee: NEC Corporation,Hitachi Kokusai Electric Inc.
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Young & Thompson
- Priority: JP2008-325617 20081222
- International Application: PCT/JP2009/070336 WO 20091203
- International Announcement: WO2010/073889 WO 20100701
- Main IPC: H04K1/02
- IPC: H04K1/02 ; H03F1/32 ; H03F3/189 ; H04L27/36 ; H03F3/24
Abstract:
A distortion compensation circuit for compensating for the distortion characteristics of an amplifier, includes a distortion compensating coefficient calculating element and a distortion compensating operation element. The distortion compensating coefficient calculating element calculates a distortion compensating coefficient to be used for compensation of the distortion characteristics by comparing an input signal with the output signal amplified by the amplifier. The distortion compensating operation element performs a distortion compensating operation on the input signal, using a variably set bit format and the distortion compensating coefficient calculated by the distortion compensating coefficient calculating element.
Public/Granted literature
- US20110255636A1 DISTORTION COMPENSATION CIRCUIT, TRANSMITTING APPARATUS AND DISTORTION COMPENSATING METHOD Public/Granted day:2011-10-20
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