baber/WOPTO huggingface dataset:
Patent JP-2003516041-A (JP)
IPC: H04L12/56
Filed: 2000-11-08
Abstract: A method and apparatus for reducing delay in the transmission of a plurality of packets by performing IP scheduling and header compression at various layers in a multilayer architecture having a plurality of classifications includes scheduling packets according to classifications. If congestion occurs during scheduling, packets may be discarded. Some packet headers may be compressed thereafter. Packets may further be queued in a first and a second queue, after scheduling, discarding, and compressing, according to at least two classifications. Best Efforts packets may be queued into the lower priority second queue. Classifications may be associated with, for example, QoS levels, delay factors, LFI, and Multilink PPP. Scheduling is performed at higher or lower layers in a multi-layer protocol. The lower layer includes a PPP layer. The lower layer may also include an HDLC layer which creates a tag for packets prior to compression being performed thereupon. The tag may be added to packets at some point thereafter. Tags are removed prior to transmission. An outbound packet queue having a queue depth of no greater than one ensures no more than one Best Efforts packet wait time.
Patent JP-2003516796-A (JP)
IPC: A61B5/0496
Filed: 2000-12-11
Abstract: The invention relates to a method and system for determining the topography for reaction signals of an eye. The reaction signals of cyclic luminous excitations are simultaneously measured on partial surfaces of the retina by using, for each partial surface, another integer number of oscillations in a predetermined time segment. These oscillations are derived from a clock rate. In the time segment, a smaller number of oscillations occur by prolonging a clock pulse by an appointed interval, and a greater number of oscillations occur by shortening the clock pulse by an appointed interval. The cumulative signal recorded on the patient contains the sum of the reaction signals and is digitized in an amplified and filtered manner with the clock pulse for generating the oscillations. The reaction signals of the individual partial surfaces are recovered by cyclic summation. This is effected by, for the corresponding partial surfaces, removing values at the prolonged locations or inserting the mean values of adjacent measuring points at the shortened locations.
Patent JP-2003519769-A (JP)
IPC: H01J45/00
Filed: 2000-12-23
Abstract: The invention relates to a novel cooling system (100) in which waste heat to be dissipated is first absorbed by an electron emission layer (15). The heat induces a discharge of electrons (13) from the surface of the electron emission layer, whereby the electrons are drawn off by a suction electrode (10) which is located on a positive potential located opposite the emission layer (15). The thermal energy carried along by the electrons (13) induce a heat transfer from the electron emission layer (15) to the suction electrode (10). The intensity of the electron flow can be controlled by the bias voltage of a grid (12) which is arranged between the electron emission layer (15) and the suction electrode (10). The surface of the electron emission layer (15) is preferably composed of alkaline earth metals such as barium or cesium.
Patent JP-2003519562-A (JP)
Title: 混合装置
IPC: B01F7/00
Filed: 2001-01-11
Abstract: (57)【要約】
容器内に収容された流体内に渦巻き流を作るためのローターである。１形態において、このローターは２個の離れた並行なデイスクを備えている。両デイスク間に羽根列が介装されている。一つのデイスクは環状で、羽根列への入口を画定している。この入口は渦巻き流の内側コアー領域のサイズを調整している。別の形態においては、ローターが中央ハブから半径方向外方へ向かう少なくとも２個の中空スポークを備えている。各スポークはハブに向かう入口および半径方向に向かう出口付きの通路を備えている。ローターの回転によりスポークを貫通する流れが生じ、この流れが渦巻き流を作る半径方向外向きの回転流を形成に寄与する。本発明の別の形態において、ローターは中央ハブから半径方向外向きの少なくとも２個の羽根を備えている。この羽根はローターの回転方向に対して傾斜した少なくとも１個の面を備えている。この羽根は回転外向き流が創生される時に軸流を誘起して渦巻き流が出来る。
Patent JP-2004500185-A (JP)
Title: 逆反射コンフェッティ
IPC: G02B5/124
Filed: 2000-05-26
Abstract: 逆反射シーティングは、断片に分けられ、収集され、かつ装飾用コンフェッティとして用いられる。コンフェッティは、一人以上の観察者によって見られかつ観察者の近くに位置する一つ以上の光源によってイルミネートされる位置でコンフェッティを空中に分散させることによって人目を引く視覚ディスプレイを生成するために用いることができる。異なる色に彩色された断片が用いられるときに人目を引く多色ディスプレイが結果として生じる。
Patent JP-2003525010-A (JP)
IPC: H02K3/24
Filed: 2001-02-10
Abstract: The aim of the invention is to ensure efficient coolilng in an electric rotary machine (2), in particular in a high-voltage generator. To achieve this, the invention provides a coolant channel (10) which extends in a radial direction and in which a number of high-voltage conductors (14) are located. A coolant gas is preferably used as the coolant. The advantage of positioning the high-voltage cables (14) in the coolant channels (10) is that the coolant comes into direct contact with said high-voltage cables (14), thus ensuring efficient and uniform cooling.
Patent JP-2003528534-A (JP)
IPC: H04W52/04
Filed: 2001-03-19
Abstract: A protection method for forward power saturation in a CDMA communication system and its power control apparatus are provided. The power control apparatus includes a base station (BS) transmitting power control unit, a base station (BS) transceiver and a transmitting power control (TPC) instruction counter. The mobile station includes a mobile station (MS) transceiver, a quality detector for a received signal, a TPC instruction generator. Through a saturation decision process and a saturation protection process, a limited power is distributed to a subscriber whose communication quality actually deteriorates and a subscriber whose communication quality deteriorates severely due to deep fading is rapidly compensated. Meanwhile, the protection method and control apparatus are capable of balancing the power and providing average power distribution among subscribers who need power increasing urgently. <IMAGE>
Patent JP-2003531191-A (JP)
Title: ジペプチジル・ペプチダーゼｉｖの阻害剤
IPC: C07D401/12
Filed: 2001-04-26
Abstract: (57)【要約】
Ｒ １ がＨまたはＣＮであり、Ｘ １ がＳ、Ｏ、ＳＯ ２ 、またはＣＨ ２ であり、Ｘ     ２ はＯ、Ｓ、またはＣＨ ２ であり、Ｘ ３ はＮＲ ５ またはカルボニル、またはチオカルボニル基であり、かつ、Ｒ ４ がＲ ６ Ｒ ７ Ｎ、Ｒ ８ （ＣＨ ２ ） ｑ Ｏ（Ｃ＝Ｏ）、Ｒ ８ （ＣＨ ２ ） ｑ ＯＣ（＝Ｓ）、Ｒ ６ Ｒ ７ ＮＣ（＝Ｏ）、Ｒ ６ Ｒ ７ ＮＣ（＝Ｓ）；Ｒ ８ （ＣＨ ２ ） ｑ Ｃ（＝Ｏ）、Ｒ ８ （ＣＨ ２ ） ｑ Ｃ（＝Ｓ）、またはＲ ８ （ＣＨ ２ ） ｑ ＳＯ ２ であり、ｍが１〜３であり、かつ、ｎが０〜４である、一般式（１）で表される化合物は新しい。本発明の上記化合物は、ジペプチジルペプチダーゼＩＶの阻害剤である。本発明の化合物、またはそれらの医薬として許容可能な塩類の医薬組成物は、とりわけ、ＩＩ型糖尿病の治療に有用である。
Patent JP-2003532352-A (JP)
Title: コンピュータ通信用集積回路
IPC: H04B3/50
Filed: 2001-03-30
Abstract: (57)【要約】
コンピュータシステムが、複数の周波数帯域において、現存する家庭用配線を介して通信することを可能にするインターフェース回路。インターフェース回路は、インターフェース回路を家庭用配線に接続する隔離回路を含む。アナログ−ディジタル／ディジタル−アナログ変換器は、複数の周波数帯域内でアナログ信号を受信しディジタル化する。ディジタルスプリッタ／コンバイナは、アナログ−ディジタル／ディジタル−アナログ変換器から受信した、組み合わされた周波数ディジタル信号をフィルタリングするように動作する。周波数帯域は好適には、典型的には音声電話信号を送信するために用いられる音声帯域と、電話線撚線対を介して高速ディジタルデータを送信および受信するために用いられるＤＳＬ帯域と、電話線撚線対を介してコンピュータおよび周辺機器をネットワーキングするために用いられるＨｏｍｅ  ＰＮＡ周波数帯域とを含む。
Patent JP-2003533088-A (JP)
Title: 待ち時間を短くしたソフトイン／ソフトアウトモジュール
IPC: H03M13/45
Filed: 2001-05-03
Abstract: (57)【要約】
符号化信号（例えばターボ符号化信号、ブロック符号化信号など）の復号を、受信された符号化信号を復調して（１３）ソフト情報を生成し、次いでそのソフト情報を１又は２以上のソフトイン／ソフトアウトプット（ＳＩＳＯ）モジュール（１１）で反復処理することによって実行する。少なくともひとつのＳＩＳＯモジュール（１１）が、木構造を利用して順方向−逆方向の状態メトリクスを計算する。より一般的に述べると、反復検出は、モジュールの１又は２以上の出力に対応する入力信号（１１）を受信し（そのモジュールのソフトインバースは順方向−逆方向のアルゴリズムを該モジュールのトレリス表現に対し実行することによって計算することができる）、次いで上記受信した入力信号の順方向と逆方向の状態メトリクスを、木構造を利用して計算することにより、上記モジュールのソフトインバースを求めることによって実行される。
Patent JP-2003533772-A (JP)
Title: 消費商品の追加の用途を提供する方法、消費商品及びデータバンク
IPC: G06F21/00
Filed: 2001-05-10
Abstract: (57)【要約】
【課題】本発明は、第１に主要な用途に指向された消費商品の、特に食品の購入の際に追加の用途を提供する方法であって、追加の用途を提供するために、適切なデータ処理装置によって公衆のデータネットへのアクセスを可能する個人コードを使用することができる方法に関する。
【解決手段】個人コードによってアクセスすることができる、プログラムのストックを、公衆のデータネットに保持し、個人コードによってプログラムのストックから或るプログラムを選択し、起動された選択されたプログラムが、アクセスのための所定の時間使用されており、及び個人コードを、所定数のアクセス後に、他のアクセスに対しブロックする。
Patent JP-2003202032-A (JP)
Title: Drive shaft and driven shaft assembling mechanism
Inventor: HOSHINO YUKIMICHI
IPC: F16H27/08
Filed: 2002-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide an assembling mechanism capable of easily assembling a drive shaft 18 rotated by a drive part and a driven shaft 13 operating a driven operating part in the same phase.  <P>SOLUTION: A rotating connection part 23 formed of a groove 24 and a projected line 25 fitted to each other is formed at the opposed end parts of the drive shaft 18 and the driven shaft 13, and a driven part substrate 14 having the driven shaft fitted thereto is overlappingly disposed on a drive part substrate 15 having the drive shaft 18 fitted thereto. The lower end part of the driven shaft 13 is connected to the upper end part of the drive shaft 18 through the rotating connection part 23 for assembly.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003201440-A (JP)
Title: Water-based undercoating composition
Inventor: MAKIMURA SATOSHI
IPC: C08F220/00
Filed: 2002-01-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide a water-based undercoating composition highly adhesive to a substrate and an existing coated film without using any chlorinated polyolefin resin.  <P>SOLUTION: The water-based undercoating composition comprises an emulsion resin obtained by emulsion polymerization of a monomer mixture containing an acetacetoxy group-containing unsaturated monomer and an aliphatic dihydrazide compound; wherein the emulsion resin has a glass transition temperature of preferably -10 to 50°C and the molar ratio of the hydrazide groups in the aliphatic hydrazide compound to the carbonyl groups in the emulsion resin with both the ends bound to no heteroatoms is preferably ≤1, more preferably 0.3-0.7.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003205802-A (JP)
Title: Tacking structure of automobile bumper beam
Inventor: UCHIDA MASANORI
IPC: B60R19/24
Filed: 2002-01-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide the tacking structure of an automobile bumper beam capable of positioning the bumper beam and the car body frame side without situating a device to position the bumper beam.  <P>SOLUTION: Bumper holding brackets 7 and 8, in the upper ends of which recessed parts 9 and 10 are formed are situated at a front side member 3 of a car body frame. A claw part 15 locked in lower parts 9a and 10a of the recessed parts 9 and 10 is protruded from the bumper beam 1 side, and the claw part 15 is locked in the recessed parts 9 and 10 to effect tacking of the bumper beam 1 and, during tacking, the bumper beam 1 is positioned on the car body frame side.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003201562-A (JP)
Title: Method for monitoring film deposition
Inventor: JIN YOSHITO
IPC: H01L21/31
Filed: 2002-01-11
Abstract: <P>PROBLEM TO BE SOLVED: To stably monitor the state of film deposition in a state practically free from e.g. the influence of extrinsic factors.  <P>SOLUTION: Light emission in the vicinity of the surface of a target 105 is observed in a state where plasma is generated. For example, the emission peak of a wavelength concerning reactive gas is observed from emitted light in the vicinity of the surface of the target to monitor the state of combination of materials constituting the target 105 with materials constituting the reactive gas at the surface of the target 105. Further, the emission peak of a wavelength concerning inert gas is observed to monitor plasma state due to the inert gas. By this method, the state of film deposition can be monitored.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003205026-A (JP)
Title: Medicine volatilizer for air conditioner
Inventor: KITAMURA RIHACHI
IPC: A61L9/12
Filed: 2002-01-15
Abstract: <P>PROBLEM TO BE SOLVED: To provide a medicine volatilizer for an air conditioner in which a living environment is made comfort by making an aroma and a deodorizer blow in a room by an air stream blown out of the air conditioner.  <P>SOLUTION: This medicine volatilizer for the air conditioner is composed of a container for liquid to be filled with a voltaile liquid, a holding member for holding a set of the containers for liquid and an attaching tool for attaching the holding member onto the air conditioner. In this device, the container for liquid is equipped with a volatilization medium in its port, the holding member is equipped with at least two cap members for freely adjusting the insertion degree of the container for liquid, and each of the cap members is equipped with an opening for air inflow and an opening for air outflow on its side portions.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003218730-A (JP)
Title: Radio communication device
Inventor: SHIOBARA SUSUMU
IPC: H04W92/08
Filed: 2002-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To reduce a load for a user during the communication setup of a radio communication device.  <P>SOLUTION: The radio communication device changes its own communication setup to a communication setup for a radio communication device of transmission destination and transmits a setup parameter. After the transmission of the setup parameter, the radio communication device returns to an original communication setup. The radio communication device of a receiving side receives the setup parameter and changes its own communication setup.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003214081-A (JP)
Title: Movable member for drilling device
Inventor: TOBE KENGO
IPC: E21B7/02
Filed: 2002-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To constantly keep clean a guide part of a guide shell and a sliding part of a movable member, and smoothly and accurately carry out feeding of a rock drill.  <P>SOLUTION: In the movable member of the drilling device capable of relatively reciprocating with respect to the guide shell 5, a trapezoidal slide plate 15 is provided on the sliding part facing the guide part 5G of the guide shell 5 so that is long edge 15L side is positioned in a vertex side of the guide part 5G.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003218848-A (JP)
Title: Preceding wave-detecting apparatus, radio receiver, and reception signal synchronization method
Inventor: MORITA YOSHINORI
IPC: H04J3/06
Filed: 2002-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To accurately carry out synchronization capture and synchronous tracking by accurately detecting the position of a preceding wave.  <P>SOLUTION: The correlation value of a reception signal and an existing signal is obtained by a correlation value calculation section 16. Then, the correlation value is differentiated by a differentiation circuit 22, a position where a differential value increases suddenly is detected by the maximum-amount-of- change detection circuit 23, and a preceding wave is detected based on the position relationship by a preceding wave detection circuit 24. As a result, the position of the preceding wave can be accurately detected in reception even if communication is made under environment where multipaths exist and under a fading environment.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003207158-A (JP)
Title: Air conditioner
Inventor: SUGIYAMA SHINJI
IPC: F24F13/20
Filed: 2002-01-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide an air conditioner in which a front intake grill correspond ing to an inlet on the front face of the body can be easily removed from a front panel for cleaning.  <P>SOLUTION: This air conditioner is constituted by a support part 11 having a locking claw 11c to be mounted on a mounting part 11b provided on the front panel 8 having a locking hole 11a and locked by the locking hole 11a and a slit c extending vertically, a bearing part 11e provided with an elastically deformable bearing hole 11d and having a protruded piece d projecting inward from one peripheral edge of the slit c, and a spindle body 11h rotatably supported by the bearing part 11e and provided with a spindle 11f provided on the front panel 8 and formed with the cross section of a polygon, and when the front intake grill 12 is opened by a predetermined angle or more, the spindle 11f has its angle part engaged with the protruded piece d to make removable from the slit c of the enlarged bearing hole 11d.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003217154-A (JP)
Title: Disk drive
Inventor: OTSUKA HIDEKI
IPC: G11B21/02
Filed: 2002-01-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a disk drive for realizing a skew adjustment mechanism performed in a manufacturing process and a tilt servo mechanism tracking to a bent of an optical disk by using the same mechanism.  <P>SOLUTION: The disk drive is characterized in to comprise: a turntable 15 on which a disk 7 is placed; a pickup 12 for emitting a light beam to an information recording face of the disk 7; a couple of guide shafts 29a, 29b for moving the pickup 12 slidably in a radial direction of the disk 7; and rotary cam means 10a, 10b, 10c for moving the guide shafts to make the turntable face in parallel with a couple of the guide shafts 29a, 29b in the radial direction and tangential direction of the disk 7 and moving a couple of the guide shafts 29a, 29b in the radial direction of the disk 7 so as to track the light beam to a slope of the face of the disk 7 when the light beam is not perpendicularly emitted on the information recording face.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003216894-A (JP)
Title: Processor and program for dropout processing
Inventor: ISAKI YASUNAO
IPC: H04N1/46
Filed: 2002-01-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a dropout processor which obtains color information for dropout from a business form and performs dropout processing with the color information to output a binarized image.  <P>SOLUTION: A color image input part 12 obtains color information of the business form 3 and an object area extraction part 13 extracts a specified partial area image from a color image according to area position information of definition body information 21. A histogram generation part 14 performs SVH conversion of RGB of the partial area image to obtain histogram of S (saturation), V (value), and H (hue) and a color information setting part 15 finds color information for a dropout from those histograms and sets and stores its value in a color table. A binarization part 16 binarizes a pixel of the color image of the business form 3 as a background color when the pixel corresponds to the color information of the color table and outputs a binarized image.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003218711-A (JP)
Title: Agc circuit of fm receiver
Inventor: TOMINAGA TOKUJI
IPC: H04B1/26
Filed: 2002-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To hold receiver sensitivity above a fixed level, without making an AGC operation function excessively in response to other FM broadcast signals having frequencies more separated from FM broadcast signals adjacent to a frequency difference of 100 kHz, and if an interference signal is produced from the adjacent FM broadcast signals, reduce the interference by effecting the AGC operation.  <P>SOLUTION: First and second AGC voltages are extracted of a final stage 1d of a high-frequency circuit 1 and the output of a band pass filter 5, respectively, so as to control the gain of the high frequency circuit 1 according to the two AGC voltages. The band-pass filter 5 has a pass band which is approximately twice the mutual frequency spacing of FM broadcast signals. In the pass band of the band-pass filter 5, the second AGC voltage is set higher than the first AGC voltage.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003217068-A (JP)
Title: Physical quantity remote control system
Inventor: KAWAI MOICHI
IPC: G08C15/00
Filed: 2002-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To eliminate the need for a person in charge to act so that a com mand of always monitoring or processing can be always given in a remote control system for controlling a physical quantity in a facility from a control center on the basis of a transmitted signal by transmitting the signal to a termi nal of the control center from the facility by a signal transmission means.  <P>SOLUTION: When the transmitted signal falls wide of a prescribed range, a terminal unit 13 generates a command signal for commanding required treatment by a program stored in a memory 23, and transmits the signal to a physical quantity adjusting means 3 via the signal transmission means 7 to adjust the physical quantity by the command signal.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2002320091-A (JP)
Title: Image coder/decoder, image coding/decoding method, and storage medium
Inventor: IGARASHI SUSUMU
IPC: H04N19/136
Filed: 2002-01-22
Abstract: PROBLEM TO BE SOLVED: To provide a method for improving efficiency by processing a plurality of factors in one cycle as long as possible in image data coding and decoding processing. SOLUTION: The factors are rearranged in coding or decoding processing, in a predetermined scan sequence such that significant factors and 0s are paired. In addition, an appropriate scan sequence is selected in accordance with the distribution state of frequencies to further improve the efficiency.
Patent JP-2003214075-A (JP)
Title: Remote control device in switching device using dc motor
Inventor: UENO KOHEI
IPC: E06B9/68
Filed: 2002-01-23
Abstract: <P>PROBLEM TO BE SOLVED: To reduce the influence of noise from a DC motor when controlling driving of a switching device using the DC motor by a remote control device composed of a transceiver.  <P>SOLUTION: A transmitter 7 is constituted so as to output a control signal including individual identifying key code data preset as additional code data, reversing key code data, function code data for selecting a control state of the switching device 4, and reversing function code data. A receiver 8 is provided with a driving state discriminating means for discriminating a driving state of the switching device 4, an undriven time data discriminating means 8d of an undriven state of the switching device 4, and a driving time data discriminating means 8e of a driving state of the switching device 4, and is constituted so as to output a driving command by reading the whole code data at undriven time, and output the driving command corresponding to the function code data to the switching device 4 when read data corresponds to preset data by reading data by neglecting the reversing code data at driving time.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2002263639-A (JP)
Title: Water purifier
Inventor: WATARI KENJI
IPC: C02F1/28
Filed: 2002-01-24
Abstract: PROBLEM TO BE SOLVED: To remove the lead component of drinking water such as city water which can not be removed by an ordinary activated carbon or hollow fiber membrane. SOLUTION: This water purifier has hydroxyl apatite and a polyolefin-based or polysulfone-based hollow fiber membrane as filter media and has excellent performance to remove heavy metals, particularly lead. It is preferable that this water purifier has activated carbon in addition to the filter media since residual chlorine, dissolved organic matter and the like can also be removed as a result. It is preferable that this water purifier has an anion exchange resin in addition to the filter media since nitrate nitrogen and nitrite nitrogen can also be removed and the performance of the hydroxyl apatite can be prevented from being deteriorated as a result.
Patent JP-2003224988-A (JP)
Title: Spindle motor stop controller for disc apparatus
Inventor: TAMURA TAIJI
IPC: G11B19/22
Filed: 2002-01-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a spindle motor stop controller which can automatically adjust offset in an ON-state of a power supply, even if an offset exists in a circuit.  <P>SOLUTION: This spindle motor stop controller has a counter-electromotive force detecting means which obtains a counter electromotive force from a voltage between both terminals of a spindle motor, a motor driver which can apply a braking voltage to a spindle motor and can put both ends of the spindle motor into free states according to control signals from an MPU, and a rotation deciding means which can obtain the revolution and rotation direction of the spindle motor according to the output of the counter electromotive force detecting means. If the outputs of the counter-electromotive forced detecting means are measured at specified time intervals, when the power supply of a disc apparatus is in ON-state and the measured values are in a range which can be regarded as the same value, the output value of the counter electromotive force at that time is employed as the spindle motor revolution zero value of the rotation deciding means or as a reference value of the rotation direction decision.  <P>COPYRIGHT: (C)2003,JPO