Invention Grant
- Patent Title: Phase error correction circuit
- Patent Title (中): 相位误差校正电路
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Application No.: US10578005Application Date: 2005-08-04
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Publication No.: US07649962B2Publication Date: 2010-01-19
- Inventor: Tatsuji Ishii
- Applicant: Tatsuji Ishii
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2004-262202 20040909
- International Application: PCT/JP2005/014295 WO 20050804
- International Announcement: WO2006/027916 WO 20060316
- Main IPC: H04L27/14
- IPC: H04L27/14

Abstract:
A phase error correction circuit includes a complex phase rotator for multiplying an input VSB (vestigial-sideband) signal by a phase correction signal and outputting a resultant signal, a specific frequency component elimination filter for eliminating a specific frequency component from the signal output from the complex phase rotator and outputting a resultant signal, a waveform equalizer for performing waveform distortion correction to the signal output from the specific frequency component elimination filter and outputting a resultant signal and a phase correction signal generator for detecting a phase error based on the signal output from the waveform equalizer and outputting a complex signal corresponding to the detected phase error as the phase correction signal.
Public/Granted literature
- US20070274416A1 Phase error correction circuit Public/Granted day:2007-11-29
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