baber/WOPTO huggingface dataset:
Patent JP-2010513979-A (JP)
Title: レーザーを用いた液晶パネルの黒化装置および方法
IPC: G09F9/00
Filed: 2007-12-18
Abstract: 本発明は、液晶セル内の異物により発生する光漏れ現象を除去する黒化装置および方法に関する。本発明に係る液晶パネルの黒化装置は、レーザー発振部１００、ビーム伝達部１２０、およびスキャン部１３０を含んでなる。前記レーザー発振部は、多数のレーザー発振器、前記レーザー発振器から発振されたビームの出力強さを調節するビーム調整手段、前記レーザービームのプロファイルを変換するビーム形成手段、および前記レーザービームを選択的に透過または反射する特性を有するハフミラーを含む。前記ビーム伝達部は、前記レーザービームの方向を転換する。前記スキャン部は、前記レーザービームが液晶パネルにおける黒化希望部位に照射されるように前記レーザービームの方向を調節する。
Patent JP-2010515027-A (JP)
Title: 表面特徴の特性測定のための装置および方法
IPC: G01B11/24
Filed: 2007-12-21
Abstract: 第１のモードおよび第２のモードで動作するように設定された干渉計システムを備える装置を開示する。この際、第１のモードは、試験光による試験対象物の異なる照射角に対応する、第１セットの複数の干渉計シグナルを生成し、第２のモードは、試験対象物の異なる表面位置に対応する、第２セットの複数の干渉計シグナルを生成する。干渉計システムに連結される電子プロセッサは、第１のセットの干渉計シグナルを受けるよう設定されており、かつ第１セットの複数の干渉計シグナルから導き出せる情報を試験対象物の複数のモデルに相当する情報と比較して、試験対象物の１つ以上の特徴を測定し、かつ情報を出力するようプログラムされている。一部の実施形態は、解像限界以下の特徴を含む。
Patent JP-2010515071-A (JP)
IPC: G01P3/488
Filed: 2007-12-12
Abstract: The invention relates to a sensor device for measuring rotational movements of a wheel bearing, comprising at least one runner (12) of a plain bearing (12, 14), at least one pulse generator (19), cooperating with a sensor (10) for determining a torque or a value derived thereof, wherein the pulse generator (18) is connected to the runner (12) of the plain bearing.
Patent JP-2010520634-A (JP)
Title: 昇降装置を用いる基板処理装置及び方法
IPC: H01L21/683
Filed: 2008-03-07
Abstract: 【課題】基板を処理する装置及び方法を提供すること。 【解決手段】複数のチャックが工程チャンバー内で相互平行に配置される。前記チャックは基板の裏面を全体的に支持し、多数の貫通ホールを有する。サポーターは、前記貫通ホールを通じて、移動可能に配置され、前記基板は前記チャックと前記サポーターの間の相対的な運動によって、前記チャック上にロードされるか前記チャックからアンロードされる。よって、前記基板を処理する期間、前記基板の裏面上に不希望の膜が形成されることを防止することができる。
Patent JP-2010521769-A (JP)
Title: 少なくとも１つの燃料電池スタックを受容するためのハウジング
IPC: H01M8/12
Filed: 2008-03-13
Abstract: 本発明は、少なくとも１つの燃料電池スタック（２４）を収容するためのハウジングであって、燃料電池スタック（２４）の積層方向がハウジング壁（１２）と交わる少なくとも一方のハウジング壁（１２）の箇所に開口部（２２）が設けられるハウジングに関する。本発明によれば、開口部（２２）に締付ブロック（３０）を配置可能であり、締付け装置（４０、４２、４４）によって燃料電池スタック（２４）の積層方向に締付ブロックに力を及ぼし、燃料電池スタック（２４）を締付けることができることを特徴とする。
Patent JP-2010521709-A (JP)
Title: テキストを音声に変換して配信するための装置及びその方法
IPC: G10L13/04
Filed: 2007-03-21
Abstract: 【課題】 【解決手段】   データから音声を生成すべきプロセッサ使用可能な装置における様式の判定を行なう方法及び装置が記載される。前記装置は、理想的には、音声をデジタル的に合成し事前記録音声を再生する手段と、それを可聴式に配信する手段と、少なくともいくつかがテキストベース指示の形式である複数のデータと１又は複数の事前記録音声とを有するデータベースが格納されたメモリと、前記装置の前記プロセッサと前記メモリとの間で前記データを送信するデータ送信手段と、プロセッサとメモリとの間におけるデータの前記処理とフローとを制御するとともに、前記音声が可聴可能に再生されるか否かを制御するオペレーティングシステムソフトウェアとを具備する。本発明においては、前記装置は更に、前記比較のポジティブな結果が、前記装置により生成されるべき音声を必要とするイベントを生じさせるように、例えば、メモリ内に備わる１又は複数の参照値と現在のＧＰＳ位置等の１又は複数の物理的な状態とを比較し繰り返し判定する能力を有する。基本的には、前記装置が、可聴可能に識別されるべきイベントであると一旦判定を行なうと、前記装置は、可聴可能に配信されるべき必要のある音声の前記タイプの前記ユーザ選択を提供するステップ（ステップａ）と、前記ユーザ選択に応じて、ＴＴＳソフトウェアコンポーネントが、少なくとも１つのイベントに対して、前記データベースから取得された１又は複数のテキストベースの指示からデジタル的に音声を合成するステップ（ステップｂ）、又は前記少なくとも１つのイベントに対して前記装置に格納された１又は複数の事前記録音声を再生するステップ（ステップｃ）、又は前記（ｂ）及び（ｃ）の組み合わが実行されるように、前記オペレーティングシステム又はその上で実行されるプログラムを相互に作用させることを可能にさせるステップとを含む。 【選択図】  図４
Patent JP-2010204642-A (JP)
Title: Lens array
Inventor: YAMADA DAISUKE
IPC: H01L27/14
Filed: 2010-01-04
Abstract: <P>PROBLEM TO BE SOLVED: To provide a lens array simplifying a laminating process.  <P>SOLUTION: This lens array includes a base plate and a plurality of lenses provided to fill in a plurality of through-holes, respectively, arrayed in the base plate. In the lens array, the base plate has a plurality of leg parts projected in the periphery of each of the plurality of lenses on the surface thereof.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2011142374-A (JP)
Title: Piezoelectric device and method for manufacturing the same
Inventor: HASHI YUKIHIRO
IPC: H03H9/02
Filed: 2010-01-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a piezoelectric vibrator excellent in shock resistance and/or oscillation characteristics.  <P>SOLUTION: The piezoelectric device includes a first substrate 2, a second substrate 4 facing the first substrate 2, and a third substrate 3 prepared between the first substrate 2 and the second substrate 4. A portion of the third substrate 3 constitutes a piezoelectric vibration chip 33, while the other portion of the third substrate 3 constitutes a frame 32 surrounding the piezoelectric vibration chip 33. Moreover, the piezoelectric device includes: a first metal film 28, 38 for joining the first substrate 2 and the frame 32; a second metal film 39 and 41 for joining the second substrate 4 and the frame 32; and a resin part 27, 41, which is prepared at one or more of between the first substrate 2 and the first metal film 28, 38, between the frame 32 and the first metal film 28 and 38, between the second substrate 4 and the second metal film 39, 41, and between the frame 32 and the second metal film 39, 41.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011142182-A (JP)
Title: Field-effect transistor
Inventor: FUJII YOSHIHISA
IPC: H01L21/28
Filed: 2010-01-06
Abstract: <P>PROBLEM TO BE SOLVED: To provide a field-effect transistor which is unlikely to break even when applied with a high voltage.  <P>SOLUTION: The field-effect transistor includes first and second transistor portions 11 and 12 which are substantially identical to each other. The first transistor portion 11 includes a group-III nitride semiconductor layer structure including a heterojunction, a source electrode 5 and a drain electrode 7 disposed at an interval on the group-III nitride semiconductor layer structure, a gate electrode 6 having a field plate 91, and an insulator layer 8 disposed to cover the drain electrode 7. The field plate 91 extends in an eaves shape to cover the drain electrode 7. The second transistor portion 12 is disposed substantially plane-symmetrically with the first transistor portion 11. The group-III nitride semiconductor structure, insulator layer 8, and drain electrode 7 of the first transistor portion 11 are united with a corresponding structure or layer in the second transistor portion 12.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011146425-A (JP)
Title: Heating element temperature estimation device
Inventor: ENOMOTO TAKAYUKI
IPC: H01L23/467
Filed: 2010-01-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a heating element temperature estimation device, which can precisely estimate a temperature of a heating element even when a cooling device for the heating element changes in driven state.  <P>SOLUTION: Based on temperatures detected by a first temperature detecting means provided in the vicinity of the heating element mounted on an electronic substrate and a second temperature detecting means provided at a position more apart from the heating element than from the first temperature detecting means, the temperature of the heating element is estimated (S14) using a predetermined expression (expression 1), it is determined (S12) whether or not a cooling means of cooling the heating element is driven, and when it is determined that the cooling means is driven, the temperature of the heating element is estimated (S16) using a second predetermined expression (expression 2) different from the predetermined expression.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2010075759-A (JP)
Title: Game machine
Inventor: IOKI SADAO
IPC: A63F7/02
Filed: 2010-01-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide a game machine wherein game progress is easy to understand for a player even when a plurality of variable display games are simultaneously executed.  <P>SOLUTION: A display command signal transmitted from a game progress control means includes information capable of identifying which of a first variable display game and a second variable display game the transmission of the display command signal is based on. A display control means includes a pseudo variable display control means for variably displaying pseudo identification information whether the received display command signal is based on the first variable display game or the second variable display game.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2011149352-A (JP)
Title: Cylinder cut-off device for internal combustion engine
Inventor: IMAI YASUTO
IPC: F02D17/02
Filed: 2010-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a cylinder cut-off device for an internal combustion engine, suppressing an unpleasant feeling with respect to a passenger during a cylinder cut-off operation.  <P>SOLUTION: This cylinder cut-off device 1 for the internal combustion engine provided with a plurality of cylinders and performing also the cylinder cut-off operation resting a part of the plurality of cylinders or the whole cylinders includes: passenger feeling estimation means 31b, 31c estimating the intensity of the unpleasant feeling of the passenger; and a selection means 31d selecting the combination of the cylinders to be rested so that the intensity of the unpleasant feeling of the passenger estimated by the passenger feeling estimation means 31b, 31c during the cylinder cut-off operation is equal to or less than a threshold.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011149645-A (JP)
Title: Storage type hot water supply system utilizing solar heat
Inventor: KANI YOSHIMIKI
IPC: F24S90/00
Filed: 2010-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a storage type hot water supply system utilizing solar heat, capable of heating a hot water/water in a hot water storage tank to a sterilization temperature or more at a proper time without depending on an amount of insolation.  <P>SOLUTION: This storage type hot water supply system utilizing solar heat, is provided with a liquid-liquid heat exchange section 8 configured by disposing a part of a warm water circulation passage 41 (circulation passage 41b for heating) for circulating the warm water heated by an auxiliary heat source machine 4 in adjacent to a part of a heat medium circulation passage 7, and in a sterilization operation for increasing a temperature of the hot water/water in the hot water storage tank 2 to the sterilization temperature or more, a heat medium circulated in the heat medium circulation passage 7 is heated by heat exchange with the warm water circulated in the circulation passage 41b for heating, in the liquid-liquid heat exchange section 8.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011147902-A (JP)
Title: Decomposition device for organic halogen compound
Inventor: KONDO YASUYUKI
IPC: A62D3/19
Filed: 2010-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a decomposition device for organic halogen compounds which stabilizes induction plasma and enables stable decomposition of organic halogen compounds.  <P>SOLUTION: The decomposition device 10 which decomposes organic halogen compounds supplied into a discharge tube 13 by using induction plasma includes a first gas blowing ring 19 where a first spout hole 18 for spouting a mixed gas of the organic halogen compounds and water vapor along the inner peripheral surface in the form of a spiral flow is formed in the inner peripheral surface, a second gas blowing ring 21 which is disposed above the first gas blowing ring 19 and where a second spout hole 20 for spouting the mixed gas of the organic halogen compounds and the water vapor along the inner peripheral surface in the form of a spiral flow is formed in the inner peripheral surface, and a seal member 23 which is disposed above the second gas blowing ring 21 to seal the upper end of the second gas blowing ring 21 and is equipped with a column portion 22 having a circular cross section, which penetrates the second gas blowing ring 21 and whose tip end reaches the upper position of the inner hole of the first gas blowing ring 19.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011149259-A (JP)
Title: Waterproof sheet
Inventor: OOKA MASAYUKI
IPC: B32B27/00
Filed: 2010-01-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a waterproof sheet allowing a water leakage to be quickly and easily detected and moreover a water leakage place to be easily specified.  <P>SOLUTION: The waterproof sheet 10 includes a waterproof sheet body 12 and an expansible sheet 14. The expansible sheet 14 is made of material expanded by retaining water. When a broken part 20 is formed in the waterproof sheet body 12 and water leaks from that part, an expansion material 18 arranged on the rear side expands and pushes up the waterproof sheet body 12. Swelling of the waterproof sheet body 12 is thereby detected easily from the outside, and the water leakage place is easily specified.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2010215223-A (JP)
Title: Propeller for vessel
Inventor: GONZALEZ ABAL PABLO ALFONSO
IPC: B63H1/20
Filed: 2010-01-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a propeller with replaceable blades which is attached to a core unit without a screw and hence removes tension normally existing around the screw and at the same time increases the strength of an entire device.  <P>SOLUTION: A marine stationary pitch propeller includes a central core unit 1 to which the replaceable blades are attached; and a plurality of blades equiangularly distributing and surrounding the core unit and attached to the central core 1. The core 1 has a columnar structure having the same number of surfaces as the number of the blades 2, and each of side surfaces thereof has a tapered groove 6 serving as a narrow port. The internal ends of these blade 2 are covered by headers, respectively. These headers are connected to one of the side surfaces of the core unit. A rib having a complementary shape with respect to the groove 6 is disposed at the center of each of these headers. A means 8 for axially fixing these headers of the blades to the core unit 1 is also provided.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2011153929-A (JP)
Title: Total light quantity measurement system, total light quantity measurement apparatus, and total light quantity measurement method
Inventor: NAMIKI OSAMU
IPC: G01J1/02
Filed: 2010-01-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide an apparatus easily managed, and measuring the total light quantity of a light source at a high accuracy.  <P>SOLUTION: The total light quantity measurement apparatus comprises: a first housing 101 having a first space for disposing the light source 300, a reflection plane 113 for positively reflecting a light emitted from the disposed light source 300, and a first opening 111 for transmitting a direct light and a reflection light; a second housing 102 having a second space, a second opening 121 with the same shape and area as the first opening 111, and an absorption plane 123 for absorbing the light on an inner surface; a detection means for detecting the first and second light quantities C, A transmitted through the first and second openings 111, 121; and a calculation means 104 for substituting the first and second light quantities C, A for the C and A in D=A+(C-A)/t (t is a reflectivity correction coefficient in a positive reflection), and calculating the total light quantity.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011152879-A (JP)
Title: Vehicle seat having occupant protective mechanism
Inventor: SAKATA MASARU
IPC: B60N2/42
Filed: 2010-01-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a vehicle seat capable of sufficiently moving an occupant toward the inside of a vehicle, when a side collision is caused in the vehicle.  <P>SOLUTION: This vehicle seat 1 includes a baseplate 30 installed on the frame 10, 20 side of a seat cushion 2 and/or a seat back 3, a rotary plate 50 having the inside joined by a hinge to this baseplate 30 and a slide plate 60 slidable in the orthogonal direction to a hinge shaft H to this rotary plate 50, and includes an occupant protective mechanism 4 constituted so that the rotary plate 50 rotates around the axis of the hinge shaft H in the floating direction to the baseplate 30 together with the slide plate 60, after the slide plate 60 slides toward the hinge shaft H side when the side collision is caused in the vehicle.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011152772-A (JP)
Title: Inkjet recording apparatus
Inventor: FUKUSHIMA TATSUYA
IPC: B41J2/01
Filed: 2010-01-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide an inkjet recording apparatus in which the maximum amount of ink for a recording medium which a user uses for the recording, is automatically detected and set.  <P>SOLUTION: The apparatus stores a reference pattern and a measured pattern, determines the amount of ink to be applied based on the patterns, and performs a recording.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011158583-A (JP)
Title: Image forming apparatus
Inventor: TOMIOKA HIROYUKI
IPC: G02B26/10
Filed: 2010-01-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide a simply-structured low-cost image forming apparatus capable of stably fixing a lens without increasing the number of components by achieving both of high adhesion strength and attitude stability in a structure wherein a side circumferential face of the lens having two refracting faces and the side circumferential face in the direction orthogonal to the two refracting faces is fixed in a lens supporting part arranged in a device body by an adhesive.  <P>SOLUTION: A columnar collimator lens 4 having the refracting faces 51 and 52 and the side circumferential face 53 in the direction crossing the refracting faces 51 and 52 is mounted on a mounting face 21 of the lens supporting part 20 arranged in a casing 1 and extended in the direction orthogonal to the optical axis P direction of the lens 4 and fixed by the adhesive 60. In the mounting face 21, the width L in the optical axis P direction in the contact position with the side circumferential face 53 of the collimator lens 4 is narrower than the width L1 of the optical axis P direction in the contact position with the mounting face 21 on the side circumferential face 53 (L<L1).  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2010181408-A (JP)
Title: Thermo-analytical instrument
Inventor: VAN DE KERKHOF ERNST
IPC: G01N25/20
Filed: 2010-02-02
Abstract: <P>PROBLEM TO BE SOLVED: To provide a thermo-analytical instrument, especially a differential scanning calorimeter, using a heat flow rate mode which has a higher reproducibility and accuracy.  <P>SOLUTION: The thermo-analytical instrument includes a sample position 201 for receiving a sample 206, a reference position 202, a heating means associated with the sample position 201 and the reference position 202, a means for setting a predetermined temperature program of nominal values of temperature versus time, a first sensor for measuring a sample temperature at the sample position 201, and a controller for controlling the heating power of the heating means. The heating power of the heating means 203 and 204 is controlled so that the measured temperature of the sample substantially may follow the predetermined temperature program.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2011166199-A (JP)
Title: Detection circuit and semiconductor device using the same
Inventor: YAMAMOTO KAZUYA
IPC: H03F1/32
Filed: 2010-02-04
Abstract: <P>PROBLEM TO BE SOLVED: To provide a detection circuit that can easily suppress deterioration in distortion characteristics at low cost, and to provide a semiconductor device using the detection circuit.  <P>SOLUTION: The detection circuit, which detects the deterioration in distortion characteristics of a power amplifier using signals at both ends of a coupling line of a directional coupler arranged between the power amplifier and an antenna, includes: a phase shifter attenuator which phase-shifts and attenuates electric power at a coupling terminal of the coupling line; a means for outputting a difference between output electric power from the phase shifter attenuator and electric power of an isolation terminal of the coupling line; a detection circuit which converts the difference into a DC signal; and a comparison circuit which determines whether the voltage level of the DC signal is larger than a predetermined value. Then, the phase shifter attenuator phase-shifts the electric power at the coupling terminal so that the phase of the signal outputted by the phase shifter attenuator is 180° in a phase difference from the phase of the signal at the isolation terminal, in a loaded state of an antenna end in which the distortion characteristics of the power amplifier deteriorate.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011164819-A (JP)
Title: Electronic device
Inventor: KANAI KAZUNOBU
IPC: G06F1/16
Filed: 2010-02-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide a user-friendly and convenient information terminal device 1 for conference.  <P>SOLUTION: The information terminal device 1 for conference includes: a flat body 4; a flat input display part 2 to overlap the body 4; a connection part 10 connecting the body 4 and the input display part 2; a body side hinge 7 turnably connecting the connection part 10 to an end part of the body 4; and an input display part side hinge 8 turnably connecting the input display part 2 to the connection part 10. The information terminal device 1 for conference includes a slide part that turns the input display part 2 around the input display part side hinge 8, to direct an input display face 3 of the input display part 2 upward, turns the connection part 10 to the body 4 side around the body side hinge 7, and slides the input display part 2 placed on the body 4 to bring the lower end of the input display part 2 into contact with a placing base 100 on which the body 4 is placed. The information terminal device 1 for conference is user-friendly and convenient.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011165863-A (JP)
Title: Photovoltaic power generation system
Inventor: UMEDA KAZUHIKO
IPC: H01L31/042
Filed: 2010-02-09
Abstract: <P>PROBLEM TO BE SOLVED: To provide a photovoltaic power generation system that secures installation area for solar cell modules by effectively utilizing a track.  <P>SOLUTION: The photovoltaic power generation system 1 includes travel rails 10, a vehicle 20 which travels on the travel rails 10, the solar cell modules 30 which are arranged adjacently to the travel rails 10, and support members 40 which can be freely extended and contracted. The solar cell modules 30 are supported by the support members 40, and the vehicle 20 has wheels 21 traveling on the travel rails 10 and a pressing structure 22 of pressing the solar cell modules 30 downward, and the solar cell modules 30 are pressed down by the pressing structure 22 when the vehicle 20 travels on the travel rails 10 by means of the wheels 21.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011161020-A (JP)
Title: Needle puncture preventing device
Inventor: KOMIYAMA HIROSHI
IPC: A61M5/158
Filed: 2010-02-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide a needle puncture preventing device capable of reliably maintaining the state of covering the distal end part of a used injection needle.  <P>SOLUTION: The needle puncture preventing device 1 includes a casing 2 capable of holding a usable needle 100 in the state of projecting the distal end and holding the needle 100 in the state of housing the distal end of the used needle 100 in an internal housing space 9 when the needle 100 is used. Then, the needle 100 is biased to the distal end side by a rear plate body 3 where a hole part 20 is formed for inserting the proximal end side of the needle 100 so as to allow the axial movement of the needle 100, the distal end part 101 of the needle 100 is made to abut on a front plate part 4, and thus the state of covering the needle 101 with the casing 2 is reliably maintained.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011166489-A (JP)
Title: Acoustic reproduction apparatus and method
Inventor: SAKAUCHI SUMITAKA
IPC: H04R1/40
Filed: 2010-02-10
Abstract: <P>PROBLEM TO BE SOLVED: To perform acoustic reproduction based on the Wave Field Synthesis, even when an upper limit frequency is high and speakers are large.  <P>SOLUTION: When defining N as an integer being ≥2 and (a) as a real number which is ≤1/2 of wavelength of an upper limit frequency of a sound to be collected of ≥0 and a sound to be reproduced, N pieces of speakers 2<SB>1</SB>, 2<SB>2</SB>to 2<SB>N</SB>for reproducing sounds collected by N pieces of microphones disposed on a line at intervals (a) based on the Wave Field Synthesis are disposed while being shifted vertically in an extending direction of a line having the same shape as that of the line, to be disposed in the extending direction of the line at the intervals (a).  <P>COPYRIGHT: (C)2011,JPO&INPIT