WO2009050815A1 - 強誘電体材料の分極方向検出装置および分極方向検出方法 - Google Patents

強誘電体材料の分極方向検出装置および分極方向検出方法 Download PDF

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Publication number
WO2009050815A1
WO2009050815A1 PCT/JP2007/070374 JP2007070374W WO2009050815A1 WO 2009050815 A1 WO2009050815 A1 WO 2009050815A1 JP 2007070374 W JP2007070374 W JP 2007070374W WO 2009050815 A1 WO2009050815 A1 WO 2009050815A1
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WO
WIPO (PCT)
Prior art keywords
signal
electric field
ferroelectric material
polarization direction
generating
Prior art date
Application number
PCT/JP2007/070374
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English (en)
French (fr)
Inventor
Kiyoshi Tateishi
Tomotaka Yabe
Original Assignee
Pioneer Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corporation filed Critical Pioneer Corporation
Priority to PCT/JP2007/070374 priority Critical patent/WO2009050815A1/ja
Priority to JP2009537824A priority patent/JP4908594B2/ja
Priority to US12/738,222 priority patent/US8130002B2/en
Publication of WO2009050815A1 publication Critical patent/WO2009050815A1/ja

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/02—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using ferroelectric record carriers; Record carriers therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/08—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by electric charge or by variation of electric resistance or capacitance
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor

Landscapes

  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

　強誘電体の表面に接触若しくは近接して配置されるべき少なくとも１つのプローブと、強誘電体に電界信号を供給し強誘電体内部におけるプローブ直下のキャパシタ成分に交番電界を印加する電界印加手段と、を含み、交番電界印加に伴うキャパシタ成分の静電容量変化に基づいてプローブ直下における強誘電体の分極方向を検出する強誘電体材料の分極方向検出装置であり、プローブを介して供給される測定信号から交番電界印加に伴う静電容量変化に応じた信号レベルを有する検出信号を生成する復調手段と、検出信号を同期信号に基づいて同期検波し、強誘電体の分極方向に対応した分極方向検出信号を生成する同期検波手段と、電界信号の周波数と同一の周波数であり且つ位相および振幅が異なる擬似ノイズ信号を生成する擬似ノイズ信号生成手段と、を含み、復調手段は、測定信号に含まれるノイズ成分を擬似ノイズ信号との信号演算処理によって除去するノイズ成分除去手段を含む。
PCT/JP2007/070374 2007-10-18 2007-10-18 強誘電体材料の分極方向検出装置および分極方向検出方法 WO2009050815A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2007/070374 WO2009050815A1 (ja) 2007-10-18 2007-10-18 強誘電体材料の分極方向検出装置および分極方向検出方法
JP2009537824A JP4908594B2 (ja) 2007-10-18 2007-10-18 強誘電体材料の分極方向検出装置および分極方向検出方法
US12/738,222 US8130002B2 (en) 2007-10-18 2007-10-18 Device and method for detecting direction of polarization of ferroelectric material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/070374 WO2009050815A1 (ja) 2007-10-18 2007-10-18 強誘電体材料の分極方向検出装置および分極方向検出方法

Publications (1)

Publication Number Publication Date
WO2009050815A1 true WO2009050815A1 (ja) 2009-04-23

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PCT/JP2007/070374 WO2009050815A1 (ja) 2007-10-18 2007-10-18 強誘電体材料の分極方向検出装置および分極方向検出方法

Country Status (3)

Country Link
US (1) US8130002B2 (ja)
JP (1) JP4908594B2 (ja)
WO (1) WO2009050815A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021057836A (ja) * 2019-09-30 2021-04-08 株式会社リコー 信号補正装置、画像読取装置、画像処理装置、信号補正方法およびプログラム

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007123155A1 (ja) * 2006-04-18 2007-11-01 Pioneer Corporation 情報記録再生装置
US8970217B1 (en) 2010-04-14 2015-03-03 Hypres, Inc. System and method for noise reduction in magnetic resonance imaging
US10080507B2 (en) 2016-01-27 2018-09-25 Life Detection Technologies, Inc. Systems and methods for detecting physical changes without physical contact
WO2018157115A1 (en) 2017-02-27 2018-08-30 Commscope, Inc. Of North Carolina Hardened converter and sealing shell for field terminated connector
EP4444168A1 (en) * 2021-12-06 2024-10-16 Life Detection Technologies, Inc. Computation of parameters of a body using an electric field

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004127489A (ja) * 2002-09-11 2004-04-22 Yasuo Cho 誘電体再生装置、誘電体記録装置及び誘電体記録再生装置
JP2005158118A (ja) * 2003-11-21 2005-06-16 Pioneer Electronic Corp 記録再生ヘッド、記録再生ヘッドアレイ、該記録再生ヘッドの製造方法、並びに記録装置及び再生装置
WO2006106924A1 (ja) * 2005-03-31 2006-10-12 Pioneer Corporation 信号処理回路及び再生装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2211194A4 (en) * 2007-10-29 2013-05-01 Tokyo Inst Tech DEVICE FOR DETECTING PHYSICAL QUANTITY
US8537931B2 (en) * 2008-01-04 2013-09-17 Qualcomm Incorporated Methods and apparatus for synchronization and detection in wireless communication systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004127489A (ja) * 2002-09-11 2004-04-22 Yasuo Cho 誘電体再生装置、誘電体記録装置及び誘電体記録再生装置
JP2005158118A (ja) * 2003-11-21 2005-06-16 Pioneer Electronic Corp 記録再生ヘッド、記録再生ヘッドアレイ、該記録再生ヘッドの製造方法、並びに記録装置及び再生装置
WO2006106924A1 (ja) * 2005-03-31 2006-10-12 Pioneer Corporation 信号処理回路及び再生装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021057836A (ja) * 2019-09-30 2021-04-08 株式会社リコー 信号補正装置、画像読取装置、画像処理装置、信号補正方法およびプログラム
JP7287227B2 (ja) 2019-09-30 2023-06-06 株式会社リコー 信号補正装置、画像読取装置、画像処理装置、信号補正方法およびプログラム

Also Published As

Publication number Publication date
US20100231234A1 (en) 2010-09-16
JP4908594B2 (ja) 2012-04-04
JPWO2009050815A1 (ja) 2011-02-24
US8130002B2 (en) 2012-03-06

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