Title:
SMALL AREA PHASE CORRECTION CIRCUIT FOR ANGULAR DISPLACEMENT MEASUREMENT
Document Type and Number:
WIPO Patent Application WO/2019/022295
Kind Code:
A1
Abstract:
The present invention relates to a small area phase correction circuit for angular displacement measurement, which can compare digital signals of an input signal and an output signal of an angular displacement measurement device (RVDT) through an XOR phase detector, and gives a time delay as much as a phase difference, so as to correct a phase error. The present invention can reduce a chip area by comparing digital signals of an input signal and an output signal of an angular displacement measurement device (RVDT) through an XOR phase detector and then correcting a phase error through a time delay given as much as a phase difference to the input signal.
Inventors:
SEO YEON HO (KR)
CHO SEONG IK (KR)
CHO SEONG IK (KR)
Application Number:
PCT/KR2017/010611
Publication Date:
January 31, 2019
Filing Date:
September 26, 2017
Export Citation:
Assignee:
NAT UNIV CHONBUK IND COOP FOUND (KR)
International Classes:
G01D18/00; G01D3/032; G01D5/22
Foreign References:
| JPH10246607A | 1998-09-14 | |||
| JP2003240601A | 2003-08-27 | |||
| US5767670A | 1998-06-16 | |||
| US6442210B1 | 2002-08-27 |
Other References:
SEO ET AL.: "Small Area Phase Correction Circuit for RVDT Using XOR Phase Detector", INTERNATIONAL JOURNAL OF SIGNAL PROCESSING, vol. 2, 24 February 2017 (2017-02-24), pages 7 - 10, XP055679237, ISSN: 2367-8984
Attorney, Agent or Firm:
HONG, Seong Il (KR)
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