baber/WOPTO huggingface dataset:
Patent JP-2006180365-A (JP)
Title: Ofdm demodulator
Inventor: KASAMI HIDEO
IPC: H04J11/00
Filed: 2004-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To reduce signal throughput, and to improve the equalizing processing performance.  <P>SOLUTION: When L-th sub-carriers are determined as pilot sub-carriers, two pilot sub-carriers of the highest and the second highest signal quality are selected from among M pieces of the L-th sub-carriers through a first selection means 302. One data sub-carrier of the highest signal quality is selected from among M pieces of (L-1)-th data sub-carriers through a second selection means 301. One data sub-carrier of the highest signal quality is selected from among M pieces of (L+1)-th data sub-carriers through a third selection means 303. The selected pilot sub-carrier and the selected data sub-carrier are multiplied by weights through a multiplying means, the pilot sub-carrier and the data sub-carrier multiplied by weights are synthesized by a synthesizing means, and a weight which makes the difference between the synthesized signals and the given signals the smallest is calculated through a calculating means.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006183689-A (JP)
Title: Plastic molding
Inventor: SASAKI DAISUKE
IPC: F16H55/36
Filed: 2004-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a plastic molding not allowing a gear or a pulley to be set on a position other than an original position.  <P>SOLUTION: In this plastic molding composed of a rotating body 1 including the gear or the pulley, and a retainer 3 for retaining the rotating body 1, projecting portions 7, 8 are formed on ribs 6 of the rotating body 1, recessed portions 9, 10 are formed on positions corresponding to the projecting portions, of the retainer 3, and their combination is specific to each rotating body.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006181003-A (JP)
Title: Locking device of pinball game machine
Inventor: TANAKA ASAO
IPC: A63F7/02
Filed: 2004-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a locking device of a pachinko game machine (a pinball game machine), capable of enhancing the flexibility in designing a game board.  <P>SOLUTION: The pachinko machine PM comprises an outer frame 1, a front frame 2 openably/closably attached to the front face of the outer frame 1 in such a way as supported to the left side of the outer frame 1 for storing and holding the game board 10, and a glass door 5 openably/closably attached to the front face of the front frame 2 in such a way as supported to the left side of the front frame 2 through which the game board 10 is visible when the glass door is closed. The locking device 50 of the pachinko machine PM is structured to lock the front frame 2 to the outer frame 1 in the closed state and lock the glass door 5 to the front frame 2 in the closed state. The locking device 50 has a key hole part 61 into which a key can be inserted and turned. When the key is inserted into the key hole part 61 and turned in one direction, the front frame 2 is unlocked; when the key is turned in the other direction, the glass door 5 is unlocked. A key hole part 10 is located/disposed on the right side of the front frame 2 and at a lower position of the glass door 5.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006182120-A (JP)
Title: Vehicular occupant detector
Inventor: SUMI TOMOAKI
IPC: B60N2/90
Filed: 2004-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a vehicular occupant detector capable of reliably detecting any abnormal load applied to a vehicle seat.  <P>SOLUTION: The vehicular occupant detector comprises a measuring unit 3 to measure the load of a vehicle seat, and a signal processing unit 4 to perform the signal processing of the output of the measuring unit 3 to output the load detection signal S1. The signal processing unit 4 has an abnormal load detection unit 5 to output the abnormal load detection signal S2 discriminative from the load detection signal S1 if the measuring unit 3 measures the abnormal load outside the preset load detection range. The abnormal load detection unit 5 has a maintaining unit 47 for maintaining the abnormal load detection signal S2 for a predetermined period irrespective of the recovery of the abnormal load on the vehicle seat.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006182157-A (JP)
Title: Electric power steering gear
Inventor: MIZUHARA MASATO
IPC: B62D5/04
Filed: 2004-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide an electric power steering capable of avoiding generation of torsion in a housing when the housing is attached to a vehicle body.  <P>SOLUTION: A housing 5 which has a spiral groove and stores and supports a turning shaft moved in the axial direction according to the steering operation comprises a first cylindrical body 51 which has a first pivotably-supporting part to support one side of the turning shaft in the axial direction, a first attaching part 5c and a second attaching part 5d to be attached to the vehicle body at the position separate in the axial direction of the turning shaft, and supports a rotary shaft connected to an output shaft of an electric motor 6, and a second cylindrical body 52 having a second pivotably-supporting part which is connected to the first cylindrical body 51 to support the other side of the turning shaft in the axial direction. When the housing 5 is attached to the vehicle body, generation of the torsion of the housing 5 can be avoided.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006185127-A (JP)
Title: Security apparatus, monitoring system and security method
Inventor: II TATSURO
IPC: G08B25/00
Filed: 2004-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a security apparatus, a monitoring system and a security method that change the security action of the security apparatus in accordance with an intruder's behavior.  <P>SOLUTION: The security apparatus 110, when detecting an anomaly in a monitored area, sends alarm information indicating the anomaly detection to a monitoring center 160 connected to a network 150. A distance sensor 111 detects an intruder intruding into the monitored area and measures the distance between the intruder and the sensor mounting position. A security level selection part 123 selects a security level representing the degree of security against the intruder according to the distance measured by the distance sensor 111. An alarm information sending part 125 controls the sending of the alarm information to the monitoring center according to the selected security level.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006184641-A (JP)
Title: Belt heating method, fixing device, and image forming apparatus
Inventor: KOMATA YASUKUNI
IPC: G03G15/20
Filed: 2004-12-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a belt heating method in which a belt member can be heated within a prescribed temperature range simply by passing of the belt member through a heating region, a fixing device, and an image forming apparatus.  <P>SOLUTION: A first temperature sensor 67 is arranged on the front side in the belt moving direction of a back surface heating roller 63 to detect the back surface temperature of the fixing belt 62 just before reaching the back surface heating roller 63. A controller within the image forming apparatus regulates the calorific value of a halogen lamp 63b by on/off control of a back surface heating power source from the difference between the value of a digital temperature signal sent from the first temperature sensor 67 and a first temperature target value.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006183595-A (JP)
Title: Internal combustion engine
Inventor: USHIJIMA KENJI
IPC: F16C7/00
Filed: 2004-12-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide an internal combustion engine reduced in the overall height thereof while avoiding the interference of rotatingly moving parts with a cylinder bore wall.  <P>SOLUTION: In this internal combustion engine having a reciprocating piston, a cutout is formed in the cylinder bore wall 1 so that the moving routes of at least one part of the parts rotatingly moving together with a crankshaft 6 do not interfere with the cylinder bore wall 1. Also, the engine is so formed that the rotatingly moving parts passes the cutout. Thus, since the moving routes of the rotatingly moving parts do not interfere with the cylinder bore wall 1, the overall height of the engine can be sufficiently suppressed.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006185315-A (JP)
Title: Security system
Inventor: SATO AKIHIRO
IPC: E05B49/00
Filed: 2004-12-28
Abstract: <P>PROBLEM TO BE SOLVED: To prevent leakage of a secret code number to prevent another person from pretending a person oneself to arbitrarily use various kinds of apparatuses.  <P>SOLUTION: In this security system, use of the various kinds of apparatuses 31-33, 36 is managed by performing identity authentication on the basis of identity information of a user read from an IC card 30 and the secret code number inputted by the user. In the security system, the various kinds of apparatuses 31-33, 36 have individual authentication devices 45, 54, 64, 75 and input devices 43, 53, 63, 74 for inputting login information so as to perform login by each the user under the management by the security system. When each of controllers 46, 55, 65, 76 for the various kinds of apparatuses 31-33, 36 decides that the inputted login information is information of the user oneself when the user performs the first use of one day, the controller 46, 55, 65, 76 assigns a different daily secret code number correspondingly to the user every day.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2005524281-A (JP)
Title: イーサネット（登録商標）ネットワークにおける前方誤り訂正コーディング
IPC: H04L1/00
Filed: 2002-04-25
Abstract: イーサネット（登録商標）パケットのビット誤り率を改善する方法は、送信されたパケットに前方誤り訂正（ＦＥＣ）コーディングを適用する。ＦＥＣコーディングは、系統的なブロックコーディングであり、ＦＥＣデコーディングが不可能なレガシーネットワーク装置によってコーディングされたパケットを解釈実行できるように適用される。ＦＥＣ可能なイーサネット（登録商標）ノードの送受信状態マシンは、ＦＥＣコードを有するパケットをノードがエンコードおよび／またはデコードすることができ、且つノードがその対応する媒体アクセス層（ＭＡＣ）データ転送速度と物理層（ＰＨＹ）データ転送速度とを適合させることができるように修正される。
Patent JP-2006511747-A (JP)
IPC: F02B37/00
Filed: 2003-05-13
Abstract: The invention provides a system for reducing oxides of nitrogen (NOx) in the exhaust of a hydrocarbon- fuelled, internal combustion engine (9), comprising: 
a hydrogen generator (22) having an inlet and an outlet for converting engine fuel, oxygen and moisture to hydrogen and carbon monoxide, said hydrogen generator providing an outflow at its outlet (26) including hydrogen and carbon dioxide; and 
NOx catalytic converters (28) or NOx traps (35,36) for receiving said engine exhaust and said outflow for reducing the NOx in said engine exhaust 
characterized by: 
means (19) for providing a mixture of fuel from said source (12) with air from air inlet (11) and said engine exhaust to the inlet of said hydrogen generator.
Patent JP-2005530329-A (JP)
Title: イオン注入装置における複数方向の機械的走査
IPC: H01J37/302
Filed: 2003-06-20
Abstract: イオン注入装置用エンドステーションは、イオンビームを受ける真空チャンバを有する。ウエハホルダは、チャンバ壁に付けられた基端部を有する走査アームの末端部で取り付けられている。走査アームは、アームに関節を与え、真空チャンバを通してビーム軌道に対し横断方向の走査面内で２つの直交する走査方向においてウエハホルダの運動を許容する少なくとも２つのロータリジョイントを有する。
Patent JP-2005531781-A (JP)
Title: 走査型プローブ顕微鏡
IPC: G01Q60/24
Filed: 2003-07-04
Abstract: 走査型プローブ顕微鏡は、プローブと試料との相互作用の変化を検出又は誘起する。画像化モードでは、プローブ（５４）が試料（１２）と接触する距離にもっていかれ、プローブ（５４）と試料の表面とが相対的に走査されるときに、相互作用の強度が測定される。画像の収集は、試料（１２）とプローブ（５４）との何れか一方をその共振周波数又はその共振周波数付近で振動させながら、試料（１２）とプローブ（５４）とを相対的に並進移動させることによって、迅速に実施される。好ましい実施形態では、金属プローブと試料との間の界面に形成されるキャパシタンスによって、相互作用が監視される。リソグラフィ・モードでは、原子間力顕微鏡が、試料の表面に情報を書き込むように適合される。
Patent JP-2005532757-A (JP)
Title: データのストリームへの条件付きアクセスを提供する装置
IPC: H04N5/00
Filed: 2003-06-20
Abstract: デコーダは、復号制御ワードを使用して、データストリームからのデータを復号する。セキュア装置は、制御ワードを供給するためにデコーダに結合される。セキュア装置は、関連される認証鍵をもつエンタイトルメント情報の少なくとも２つのアイテムを記憶するためのメモリスペースを有している。セキュア装置は、装置からのメッセージを受けるための入力を有している。メッセージは、たとえばストリームのソースに関する情報を含んでいる。セキュア装置は、記憶されている場合、メッセージのコンテンツに依存して、少なくとも２つのアイテムの中から選択することでメッセージに応答する実行ユニットを含んでいる。実行ユニットは、エンタイトルメント情報の選択されたアイテムの１つが存在すること及び有効であることを条件として、選択された１つのアイテムに関連される復号鍵による制御ワードの復号の後、制御ワードのデコーダへの送出をイネーブルにする。
Patent JP-2005533693-A (JP)
Title: プラスチックを金属部品に取り付ける方法及びそれによって作られた部品
IPC: B62D29/00
Filed: 2003-07-25
Abstract: 本発明は、金属基板（１２）にプラスチック（１４）を取り付ける方法及びその方法によって作られた部品（１０）を含む。プラスチック構成部品（１４）が金属構成部品（１２）の周りで且つ底部開口（１６）を介して成形される。プラスチック構成部品（１４）は、その一方の側にフランジ（２６）を含んでいてプラスチック構成部品（１４）を金属構成部品（１２）に固定する。
Patent JP-2005535037-A (JP)
Title: ウェブ使用可能ライブスキャナおよび制御方法
IPC: H04N7/173
Filed: 2003-07-29
Abstract: ウエブで使用可能なライブスキャナを提供する。一つの実施形態において、ライブスキャナは、ネットワークに結合可能なイメージ・インタフェースを含む。カメラは、紋様のイメージを検出する。そのイメージは、メモリに格納される。イメージ・インタフェースは、ウエブ・サーバ、ソケット・サーバ、及びピクチャ採取部を含む。リモート・ユーザは、ネットワークを介しブラウザを使って、このウエブ使用可能ライブスキャナを制御できる。
Patent JP-2005537636-A (JP)
Title: 誘導素子および該素子の使用
IPC: H01F27/02
Filed: 2003-07-21
Abstract: 本発明は、少なくとも１つのワイヤ巻線（３）と、強磁性コア材料を備えている少なくとも１つのコア（４）とを有している、磁気回路を形成するための誘導素子（１）であって、コア（４）は磁気回路を遮断するために１つのギャップ（７，８）と、少なくとも１つの別のギャップ（８，７）とを有している形式のものに関する。誘導素子は、ギャップ（７，８）がそれぞれ、少なくとも１．０ｍｍであるギャップ幅（９）を有していることによって特徴付けられている。コアは例えば少なくとも２つの部分（５）から成っており、該部分はギャップ（７，８）のところで相対向して配置されておりかつギャップ幅（９）によって相互に離間されている。有利には素子はギャップの実質的に同じギャップ幅を以て対称形である。高周波リッツ線から成るワイヤ巻線および高周波に適しているコア材料から成るコアの使用によって、高い電力スループットにおいても高いＱ値を有し、ひいては低い電力損を有している小型化された誘導素子が可能になる。Ｑを高めるために誘導素子は付加的に、ワイヤ巻線を冷却するための冷却装置を持っていることができる。その際装置はポリマー材料および少なくとも１つの熱伝導性の充填剤を有する固溶体を有している。誘導素子は照明分野におけるいわゆる電子的な安定器（elektronisches Vorschaltgeraet＝ＥＶＧ）に使用される。
Patent JP-2006500410-A (JP)
Title: アシルホスフィンオキシドの製造方法
IPC: C07F9/32
Filed: 2003-09-12
Abstract: 芳香族カルボキシホスフィン（Ｉ）をアシルホスフィンオキシド（ＩＩ）へ変換することによる芳香族アシルホスフィンオキシド（ＩＩ）の製造方法。
Patent JP-2005537814-A (JP)
IPC: A24D3/14
Filed: 2003-07-16
Abstract: The method of manufacture of a multiple segment filter for smoking articles has the filter segments (1,7) in one group joined to form a filter. A carbon filter material or scent can be injected into the filter after the segments have been cut. The material can be injected (5) during transport of the filter segments, particularly when on the feed drum (18). Claims include a filter manufacturing machine module using the method.
Patent JP-2006513190-A (JP)
Title: 有毒化学試薬に曝露した患者の処置方法
IPC: A61K31/66
Filed: 2002-12-21
Abstract: 本発明は、殺虫剤への曝露に因る有害な影響を蒙った患者の処置方法に関する。前記方法は、明細書の示す構造式のチオールまたは還元性ジスルフィド化合物の有効量を、処置が必要な患者に投与することを含む。
Patent JP-2005202400-A (JP)
Title: Optical modulating apparatus having bias controller and bias control method using the same
Inventor: LEE GYU-WOONG
IPC: G02F1/035
Filed: 2005-01-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide an optical modulating apparatus having an automatic bias controller and a bias control method using the same, which can automatically perform bias adjustment so as to keep the optical output characteristic of an optical modulator constant.  <P>SOLUTION: The optical modulating apparatus includes a light source 110 which outputs an optical carrier, an optical modulator 120 to modulate the optical carrier according to a data signal and a bias signal; and the bias controller 200 to adjust the bias signal of the optical modulator 120 by detecting a second harmonic signal of the modulated optical signal, setting a minimum point of the second harmonic signal as a reference bias voltage, and then comparing a magnitude of the second harmonic signal that changes according to an external environment with a magnitude of a signal generated from the reference bias voltage. Consequently, the stable optical transmission characteristic can be maintained and compact constitution is realized when an optical communication system equipped with the optical modulator 120 is embodied.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2006197047-A (JP)
Title: Mobile communication terminal, warming screen display method used therefor, and program thereof
Inventor: YOSHINO YUKIKO
IPC: H04W88/02
Filed: 2005-01-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a mobile communication terminal capable of warning a user that sound is making nearby the ear.  <P>SOLUTION: A control portion 18 of a mobile phone 1, when entering a voice call state, sends a signal indicating the voice call state to a speaker integrated type display portion 19 and then the voice of a telephone call partner is heard whichever part of the screen portion of the speaker integrated type display portion 19 the ear is applied to. The control portion 18 when reproducing a moving picture stored in a ROM 16 or RAM 17 or when reproducing recorded voice data or reading mail aloud displays a warning picture showing a loud sound is output from the screen of the speaker integrated type display portion 19 on the display screen of the speaker integrated type display portion 19 and then outputs voice data and a reading-aloud sound of the body of the mail by a speaker portion of the speaker integrated type display portion 19.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006196567-A (JP)
Title: Method for manufacturing circuit formation substrate
Inventor: NISHII TOSHIHIRO
IPC: H05K3/46
Filed: 2005-01-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a circuit formation substrate which is stable and high in quality even if work size is made large.  <P>SOLUTION: Two or more substrate materials are stacked for an identical metallic foil in a lamination step, or two or more B-stage status substrate materials are stacked for an identical C-stage status substrate material in a lamination step, or two or more C-stage status substrate materials are stacked for an identical B-stage status substrate material in a lamination step.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006192171-A (JP)
Title: Game machine and sensor unit for detecting opening or closing
Inventor: MIYAUCHI TOSHIHIRO
IPC: A63F7/02
Filed: 2005-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a sensor unit which facilitates the assembly of itself by detecting the opening or closing of the front frame and the middle frame.  <P>SOLUTION: In the sensor unit 10 for detecting the opening or closing of the frames, a detection switch 20, a holding member 30 and a body member 40 are assembled by inserting a first and second guide bars 36 and 37 of the holding member 30 into a first and second guide grooves 48 and 49 of the body member 40 while the holding member 30 is kept energized backward by a twisted spring 60. The mounting of the unit on the pachinko game machine 1 can be done simply and a recessed part 44 of the body member 40 being hooked on a support shaft 71 of the middle frame 3 is pressed from ahead only to be engaged with a rib 72 at the upper part of a through port 6 with a snap pawl 45. With the unit mounted on the middle frame 3, the holding member 30 is oscillated backward to turn the switch off. When a rising part 35 is pressed with the outer frame 2 while a lever 21 is pressed with the front frame 5, the switch is turned on.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006199509-A (JP)
Title: Reformer
Inventor: MIZUNO TSUTOMU
IPC: C01B3/56
Filed: 2005-01-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a reformer capable of increasing a hydrogen yield in spite of its simple structure by eliminating the unevenness of a feedstock gas and reducing a temperature unevenness.  <P>SOLUTION: The reformer 1 is one wherein a membrane pipe 3 is contained in an externally heated cylinder 2, and the cylinder 2 is packed with a reformation catalyst 4 which reforms into carbon monoxide and carbon dioxide a feedstock gas comprising hydrocarbons and steam fed from one end of the cylinder 2 in a manner that the membrane pipe 3 is buried in the cylinder 2. The reformer 1 has a structure in which a helical member 5 being in contact with the inner circumference of the cylinder 2 on its outer circumference and having a clearance t larger in size than the particle diameter of the reformation catalyst 4 between the inner circumference and the outer circumference of the membrane pipe 3 is fitted into the cylinder 2 so as to swirl the feedstock gas flowing among the individual particles of the reformation catalyst 4.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006199762-A (JP)
Title: Improver composition for improving surface physical properties of resin molding, thermoplastic resin composition containing the same, resin molding thereof and automobile interior upholstery material
Inventor: FUKUSHIMA NORIYUKI
IPC: C08L51/06
Filed: 2005-01-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide an improver composition for improving surface physical properties of resin moldings which can impart good lubricity to the resin moldings while suppressing excessive bleeding of a lubricant and can impart excellent scratch resistance, wear resistance and heat-resistance, a thermoplastic resin composition containing the same, resin moldings thereof and an automobile interior upholstery material.  <P>SOLUTION: The improver composition for improving surface physical properties of resin moldings comprises the following component (A) and component (B), wherein the component (A) is a graft copolymer comprising an olefin polymer segment (a) as a backbone component and a vinyl polymer segment (b) formed from vinyl monomers other than olefins as a branch component, wherein one segment forms a dispersed phase in a matrix phase formed by the other segment; and the component (B) is a lubricant comprising an esterified product of a neopentylpolyol or a dehydrated condensate thereof and a fatty acid.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006199768-A (JP)
Title: Method for producing inorganic microparticle-containing coating liquid
Inventor: MINAMI TAKEHIRO
IPC: B41M5/00
Filed: 2005-01-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for producing an inorganic microparticle-containing coating liquid capable of forming coating layer with aggregate-free smooth surface.  <P>SOLUTION: The method for producing the inorganic microparticle-containing coating liquid essentially containing inorganic microparticles ≤1μm in average secondary particle size and polyvinyl alcohol comprises mixing together an aqueous polyvinyl alcohol solution adjusted to 60-80°C and an aqueous inorganic microparticle dispersion adjusted to 5-34°C.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006203425-A (JP)
Title: Blade antenna assembly for aircraft
Inventor: OTA YASUO
IPC: H01Q9/40
Filed: 2005-01-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a blade antenna assembly for aircraft whose mechanical strength is increased while an increase in air resistance during a flight is suppressed.  <P>SOLUTION: Disclosed is the blade antenna assembly for aircraft which has a flat plate type antenna element covered with a dielectric cover. The antenna element has a couple of opposite main surfaces and an outer end surface forming an outline of the main surfaces. The antenna element has a plurality of through holes bored extending between the main surfaces and the dielectric cover is arranged even in the through holes to increase the strength of coupling between the antenna element and dielectric cover. On at least one main surface of the antenna element, a reinforcing rib may be arranged in a region enclosed with the outline.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006204055-A (JP)
Title: Power supply back-up circuit
Inventor: SUGIMOTO TASUKU
IPC: H02J9/06
Filed: 2005-01-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a power supply backup circuit capable of performing backup for an extended period.  <P>SOLUTION: A voltage is kept at a constant value Vref (constant voltage) at the ADJ terminal of a regulator 2. When a transistor Q1 is on, one end of a resistor R2 is grounded, and a current I that flows in the resistor R2 is Vref/R2 (the saturation voltage of transistor Q1 is to be ignored). The current flowing the ADJ terminal is negligible, this current becomes identical with the current flowing in a resistor R1, the voltage VT1 of the output terminal Vout that is VT1=(1+R1/R2)×Vref. When the base potential of the transistor Q1 falls as a power supply voltage VCC falls to turn the transistor Q1 off, current will no longer flows in the resistor R2. Accordingly, current will also not flow in the resistor R1 either, making the output voltage VT2 of the regulator 2 equal to the voltage Vref of the ADJ terminal.  <P>COPYRIGHT: (C)2006,JPO&NCIPI