baber/WOPTO huggingface dataset:
Patent KR-100229254-B1 (KR)
Title: Novel amidinonaphtyl furancarboxylate derivatives and acid addition salts thereof
Inventor: NAKAYAMA TOYOO
IPC: A61P15/00
Filed: 1992-11-12
Granted: 1999-11-01
Abstract: Amidinonapththyl furancarboxylate derivatives of the formula I <CHEM>  wherein A is a single bond or A denotes     a) a phenyl group, a cyclopentyl group or a cyclohexyl group; b) an alkenylphenyl group, an alkylphenyl group, a phenylalkenyl group or a phenylalkyl group wherein alkyl is C1 to C7 alkyl and alkenyl is C1 to C7 alkenyl; c) a C1 to C18 alkyl or C1 to C7 alkenyl group, which may be substituted by one or two substituents selected from C1 to C5 alkyl groups and guanidino groups, wherein an alkyl substituent together with the carbon atom to which it is attached, may form a cycloalkyl ring having from 3 to 6 carbon atoms, or a C1 to C5 alkyl may itself be substituted by a cycloalkyl ring; or d) -(CH2)n-NH-CO-(CH2)n<'>- wherein n and n', which may be the same or different, each represent an integer from 1 to 4; and R denotes a hydroxyl group; a C1 to C7 alkoxy group which may be mono- or di-substituted by C1 to C5 alkyl; a phenyl-C1-C4alkoxy group; -OAl(OH)2; an amino group; <CHEM> and pharmaceutically acceptable acid addition salts thereof are useful as pharmaceuticals.
Patent KR-100269280-B1 (KR)
Title: Manufacture method of ldd type mos transistor
Inventor: KIM WON JU
IPC: H01L29/73
Filed: 1992-12-07
Granted: 2000-10-16
Abstract: PURPOSE: A method of manufacturing an LDD type MOS transistor is provided to improve the punch-through characteristic and the drain-current characteristic in a short channel device. CONSTITUTION: A gate oxidation layer is formed on the semiconductor substrate(20) by heat-oxidation process to form a gate electrode(24). First ions are injected at angles of 15 through 60 degrees to the ion incident direction to form a low-density source/drain region(26). Second ions are injected at an angle of 7 degrees to the ion incident direction to form a high-density source/drain region(28). A spacer is formed on the sidewall of the gate electrode. A silicide layer(32) is selectively formed on the surface of the structure above excluding the surface of the spacer. The spacer is wet-etched and removed. Third ions are injected at angles of 15 through 60 degrees to the ion incident direction to form a high-density pocket region(34).
Patent KR-100255919-B1 (KR)
Inventor: KEITH KAMBIES
IPC: G11B5/008
Filed: 1993-04-09
Granted: 2000-05-01
Abstract: 자동 스캔 트래킹 나선 테이프 유형의 자료 리코더가 작동 방법과 함께 여기에서 공개된다. 기록 테이프가 스캐너 어셈블리와 협력적으로 맞물려 주어진 기록 속도로 이동할 때 자료가 리코더의 일부를 형성하는 회전 스캐너 어셈블리에 의해서 자료 검색정보와 함께 자기 기록테이프 위로 쓰여진다. 기록 테이프가 주어진 동일한 속도로 길이로 이동할 때 자료는 보통 회전 스캐너 어셈블리에 의해서 자료 검색정보와 함께 기록 테이프로부터 검색된다. 작동에서, 기록 테이프가 이동하고 있지 않은 동안에, 즉, 정지 테이프 읽기로부터 생기는 자료의 평가에 따라 트랙에 관한 읽기 헤드 위치를 조정하게 하기 위하여 테이프가 정지된 시간 동안에, 리코더의 회전 스캐너 어셈블리가 기록 테이프의 구획으로부터 자료 및 자료 검색정보를 검색한다. 기록 테이프가 정지 상태로부터 주어진 기록상태로 가속되는 동안 호전 스캐너가 기록 테이프의 구획으로부터 자료 검색정보를 검색하게 하는 준비가 이루어지며, 이후의 자료평가 및 조정은 상기 결과를 근거로 한다.
Patent KR-0138637-B1 (KR)
Inventor: KO HEUNG-CHAN
IPC: F24C7/08
Filed: 1993-06-15
Granted: 1998-05-01
Abstract: 본 발명은 전자렌지와 유도가열조리기의 기능을 복합적으로 갖춘 복합조리기의 용기감지장치 및 그 용기감지방법에 관한 것으로써, 교류전원입력단으로부터 출력되는 상용교류 입력전압을 받아서 직류로 전파정류하는 정류수단과, 상기 정류수단으로부터 출력되는 직류전압을 받아서 상기 용기감지장치의 전체적인 동작을 제어하기 위한 동기제어신호를 출력하는 마이크로컴퓨터와, 상기 마이크로컴퓨터로부터 출력되는 동기제어신호를 받아서 전자렌지 또는 유도가열조리기의 동작을 선택하기위한 구동접점신호를 출력하는 릴레이구동수단과, 상기 릴레이구동수단으로부터 출력되는 구동접점신호를 받아서 인덕션 및 전자렌지의 조리 기능을 수행하는 조리수단과, 상기 조리수단으로부터 출력되는 조리동작신호를 입력받음과 동시에 상기 마이크로컴퓨터로부터 출력되는 동기제어신호를 받아서 부하를 구동하기 위한 스윗칭신호를 출력하는 스윗칭수단과, 상기 스윗칭수단으로부터 출력되는 스윗칭신호를 받아서 용기에 흐르는 전류의 변동량을 감지하여 상기 마이크로컴퓨터에 출력하는 전류감지수단으로 이루어진 것을 특징으로 한다.
Patent KR-100292414-B1 (KR)
IPC: F16H61/06
Filed: 1993-07-08
Granted: 2001-11-05
Abstract: The hydraulically operated brake and clutch elements (controlled by proportional control valves) of a vehicle powershift transmission have fill pressures which are calibrated by a method wherein the output shaft of the transmission is disconnected from the vehicle drive shaft so that the transmission output shaft is free to rotate and certain ones of the plurality of the control elements other than the control element being calibrated are fully pressurized in order to prevent rotation of a part of the control element being calibrated. The engine is run at a predetermined speed and the pressure applied to the control element being calibrated is gradually increased while engine speed is monitored. When the monitored engine speed changes by predetermined amount, a value is saved corresponding to the calibration pressure. The transmission is automatically shifted to neutral if vehicle motion is sensed. The volume of hydraulic fluid required to initially engage the control element may be calibrated in a similar manner.
Patent KR-0124378-B1 (KR)
Title: Method of song arrangement in mini disc player
Inventor: LEE DONG-JIN
IPC: G11B27/02
Filed: 1993-07-08
Granted: 1997-11-28
Abstract: A blank area exists between the 2nd track and 3rd track of a disk, then the microcomputer(1) judges whether the disk has a blank area, if it does, it reads the data of the 3rd track from the disk and stores in the RAM(6), recording the data of the 3rd track in the blank area of the disk. In this manner the disk player reads the data of the tracks following the 3rd track and stores them in the A area and the B area of the RAM(6) and records the stored data next to the 3rd track of the disk in turn. It records the first address and the last address of changed tracks(3,4,5) onto the corresponding track address.
Patent KR-100220338-B1 (KR)
Title: Skin care compositions containing imidazoles and retinoids
Inventor: YUSUF MOHAMMED
IPC: A61K8/37
Filed: 1993-08-03
Granted: 1999-09-15
Abstract: Skin care compositions comprising a water-in-oil emulsion base containing retinoids, excluding Vitamin A acid, and at least one imidazole in a free base form and possessing good physical and chemical stability. The compositions further comprise a stabilizing system selcted from:     a) a chelating agent and at least one oil-soluble antioxidant, b) a chelating agent and at least one water-soluble antioxidant; and   c) antioxidant present in each of the oil and water phases of said emulsion.
Patent KR-100254868-B1 (KR)
Inventor: KORADIA PRAMOD B
IPC: B01J21/04
Filed: 1993-08-30
Granted: 2000-05-01
Abstract: 순도가 95% 이상인 알파 알루미나를 90중량% 이상 포함하는 다공성 담체 물질은 엔진 배기물을 처리하는 촉매용 지지체로서 매우 효과적이고 통상적인 지지체보다 현저히 우수하게 극한 조건을 견뎌낼 수 있다.
Patent KR-950008912-B1 (KR)
Title: Rope producing apparatus
Inventor: HONG UI-SHIK
IPC: D07B7/00
Filed: 1993-09-22
Granted: 1995-08-09
Abstract: The rope manufacturing device having a lower unit for primarily twisting the original yarn by using a lower fly fixed to a lower fly shaft; a voice for collecting the twisted yarn; and an upper unit having an upper fly driving shaft for transferring rotation power, an upper fly for twisting the yarn by the rotation power and a capstan for drawing the rope twisted by the upper fly, is characterized in that the lower fly shaft is supported by a locking bearing which is designed not to move in the axle direction, thereby preventing the slipping phenomenon between the fly shaft and the bearing.
Patent KR-960003100-B1 (KR)
Title: Frequency jumping hop
Inventor: CHOE SE-YUL
IPC: H04B1/7143
Filed: 1993-12-03
Granted: 1996-03-04
Abstract: The method for forming leaping section with various kinds of data leaping section, resynchronizing section, and length of mute includes the steps of: a) setting the leaping sequence period(Ct) according to design condition; b) determining length of mute(M) and length of data section(D); and determining total length of data section(Cd=Ct/compression ratio), length of leaping section(Lh=D+M), number of leaping section(Nh=Ct/Lh), number of data section(Nd=Cd/C), number of resynchronizing section(Ns=Nh-Nd) to form the leaping section.
Patent KR-970007807-B1 (KR)
Title: White balance device
Inventor: SONG JOONG-SUB
IPC: H04N9/73
Filed: 1993-12-30
Granted: 1997-05-16
Abstract: A white balance apparatus capable of removing a coloring component of a subject to thereby use only non-coloring component as information to perform a white balance operation is disclosed. In the white balance apparatus, a signal processing section(10) outputs an image signal having a coloring signal. A coloring deleting section deletes the coloring signal among the image signals. A white balance reference signal output section receives the output of the coloring deleting section and outputs a white balance reference signal. A comparing signal output section outputs a reference comparing signal of a predetermined level. A comparator(17) compares the white balance reference signal with a reference comparing signal. A controller(18) outputs a white balance control signal to signal processing section(10) according to a comparing result of the comparator(17).
Patent KR-960013857-B1 (KR)
Title: Data output buffer
Inventor: KIM HONG-SUK
IPC: H03K19/00
Filed: 1993-12-31
Granted: 1996-10-10
Abstract: The data output buffer comprises a pull-up transistor, a pull-down transistor and a gate voltage control circuit(11) which prevents ground noise when low data is outputted in the output terminal of the data output buffer by controlling the pull-down current by supplying a gate of the pull-down transistor with a gate voltage control signal having a multi-stage slope. The gate voltage control circuit(11) comprises NMOS transistors and PMOS transistors.
Patent KR-0152100-B1 (KR)
Title: Preparation process of a t-cell differentiated and matured in respect of the phenotype of differentiation antigen and its funtion
Inventor: WATANABE YOSHIHIRO
IPC: C12N5/0783
Filed: 1992-07-01
Granted: 1998-10-01
Abstract: A process for culturing a T precursor cell line characterized by conducting the culture under such a condition that the concentration of oxygen dissolved in a nutrient medium is higher than of oxygen dissolved in a nutrient medium in an ordinary atmosphere. This process enables a T precursor cell to be induced into a T cell differentiated and maturated in respect of the phenotype of differentiation antigen or function with reproducibility by using the sedimentation (suspension) culture method which is a general method for culturing cells or tissues. <IMAGE>
Patent KR-100249101-B1 (KR)
Title: Detection of collagen degradation in vivo
Inventor: EYRE DAVID R
IPC: C07K16/00
Filed: 1992-05-15
Granted: 2000-03-15
Abstract: The invention provides an immunological binding partner which binds to wherein J is pyroglutamic acid or glutamine, and (Leu) is optional leucine; which immunological binding partner is not monoclonal antibody 1H11.
Patent RO-122298-B1 (RO)
Title: Phospholipase a1 enyzme dna sequence from tetrahymena termophila and use thereof
Inventor: HARTMANN MARCUS
IPC: C12N15/09
Filed: 2002-01-22
Abstract: The present invention relates to a nucleic acid comprising the phopholipase A1 coding and non-coding regions from Tetrahymena thermophila and the upstream and downstream regions of this gene, to the phospholipase A1 protein, said acid being used in a method for homologous or heterologous expression of proteins and peptides in phospholipase A1.
Patent RO-122572-B1 (RO)
Title: Fixed ignition wire
Inventor: C EPU AN IOAN
IPC: H01R11/00
Filed: 2004-03-01
Abstract: The invention relates to a fixed ignition wire which connects the induction coil and the ignition plug. According to the invention, the wire consists of an assembly of metallic or non-metallic parts (3, 4, 5, 6 and 10) assembled to one another by threads, and at the ends screwed in the ignition plug (1) and in the housing (7) of the induction coil (8), provided to the inner side with an orifice wherein there are two ceramic insulators (2) linked by a spring (11) and wherethrough a stranded wire cable (12) passes, this being connected at the ends to two parts which make the contact with the ignition plug electrodes (1) and with the coil (8). The assembly of threaded parts (3, 4, 5, 6 and 10) have the role of support for the induction coil (8) and protects the accidental discharge of the voltage in the environment.
Patent RO-128309-B1 (RO)
Title: Wave energy collecting installation
Inventor: HALOIU CRISTINEL
IPC: F03B13/14
Filed: 2010-06-30
Abstract: The invention relates to an installation for collecting the kinetic energy of successive marine waves generated in the shore area. According to the invention, the installation consists of a metal framework () the vertical elements of which are fixed onto the sea bottom, supporting a driving and a driven pulleys (), a belt () fixed between the two pulleys () being provided with some swinging scrapers () having the height equal with the maximal height of waves recorded in the area where the framework () is intended to be placed, the waves passing beneath the lower branch of the belt (), the scrapers () being provided with some telescopic hydraulic dampers which improve the up and down movement on the two pulleys () and, at the same time, act as opening and closing limiting devices for the scrapers (), some rollers () articulated to the belt () rolling on some upper and lower rolling elements () and, in the stage of belt winding up onto the pulleys (), they pass through some channels () cut therein, the lower branch of the belt () being supported by some rolling elements () on which the rollers () roll, the rotation of the driving pulley () being transmitted to a generator (), an access platform () being provided deep down, under the water level, with a view to making the maintenance and repair works easier, while a shield () located in front of the installation can be lowered to limit the wave action.
Patent RO-128006-B1 (RO)
Title: Process for preparing a biological extract, biological extract, composition comprising the same and use of the composition
Inventor: POP DE POPA IOAN
IPC: A61K35/54
Filed: 2010-10-11
Abstract: The invention relates to a method for preparing a biological extract, a biological extract, a composition comprising the same and the use of the composition for treating genetically-induced human pathology diseases produced by mutagenic agents. The claimed method consists in treating a biological material with an equal volume of phenolic solution with chloroform in a 1:1 ratio, until the mixture reaches a pH value of 7.8...8, while continuously stirring, after which the homogenized emulsion is subjected to successive centrifugations for separating the formed layers and the entire cumulated quantity of aqueous solution is treated with 2 volumes of ethyl alcohol in concentration of 99%, thereafter, by precipitation, there results a white coloured biological extract with a chain length of 30 kb, which is introduced into a sterile refrigerated container to be stored in a fixing and preserving solution with iso-ionizing manitol. The claimed biological extract has a molecular weight of 5x10, a purity degree of 1.93...1.98, it is insoluble in pure water, unstable in diluted acids or alkalis, has a temperature-stable viscosity behaviour, it is free of immunological reactions, free of germs, fungi or viruses, well tolerated by in vitro human cell cultures, by animal and human organisms. The claimed composition consists of the biological extract and the pharmaceutically-acceptable excipients for processing the same, as powder, tablets or solution and it is used for the diseases determined by mutagenic agents or for bone marrow disorders, having effects on the leukopenia and reduction of immunity, irradiation-induced affections or cytostatic therapy-induced affections included as well as the affections induced by other mutagenic factor effect, preferably in the fields of ophthalmology, dermatology, hematology, oncology, transplantology.
Patent SA-517390352-B1 (SA)
Title: Power Generating Apparatus
Inventor: PAUL SCHELHAAS
Filed: 2017-11-16
Abstract: A power generating apparatus (2) for use in remote locations, the apparatus including a static base (24) adapted to support a housing (4) and an elongate device support element which is adapted to be upstanding (6) in use, wherein the housing (4) is insulated; an electrical energy storage assembly located within a compartment defined by the housing (4), the electrical energy storage assembly having an electrical input and an electrical output, and comprising one or more rechargeable batteries; an electrical energy generator carried externally by the housing, wherein the electrical energy generator is the sole source of electrical energy and is in the form of one or more photovoltaic panels (8 , 10 , 14 , 16, 20) configured to convert solar energy into electrical energy, the electrical energy from the electrical energy generator being electrically connected to the input of the energy storage assembly; and a powered device carried by the device support element, the powered device being
Patent SA-519410261-B1 (SA)
Title: Hydrotreatment of feedstock from renewable sources using catalysts with a high content of active phase
Inventor: FERRARI MARCO MASSIMO
Filed: 2019-10-06
Abstract: The present invention relates to a process for obtaining hydrocarbons by the hydrotreatment of feedstocks from renewable sources, comprising mixtures of fatty acid esters and/or free fatty acids of biological origin, where said hydrocarbons may be used as fuels or components of fuels, in particular diesel fuels.
Patent SA-520412404-B1 (SA)
Title: Method for Purification of A Solvent for Separation of Styrene by Extractive Distillation
Inventor: ZHIFENG BIAN
Filed: 2020-07-08
Abstract: A method for purification of a solvent for separation of styrene by an extractive distillation, comprising: a styrene-containing feedstock is introduced into an extractive distillation column from the middle, and a solvent for the extractive distillation is introduced into the extractive distillation column from an upper part; after the extractive distillation, a raffinate oil is discharged from the top of the extractive distillation column, and a rich solvent rich in styrene is discharged from the bottom of the column; the rich solvent is introduced into the solvent recovery column from the middle; after vacuum distillation, a crude styrene is discharged from the top of the solvent recovery column, and a lean solvent is discharged from the bottom of the solvent recovery column and recycled to the upper part of the extractive distillation column; a part of the rich solvent is separated and sent to a solvent purification zone and water is introduced into the solvent purification zone; a
Patent SA-521421344-B1 (SA)
Title: Gripping apparatus
Inventor: PIVAC MARK
Filed: 2021-02-28
Abstract: The present disclosure relates to a gripping apparatus for controllably placing an object, the gripping apparatus including: a gripper assembly mounted to a robot arm via a connector body, the gripper assembly including a housing that supports one or more gripper drive assemblies operatively coupled to a pair of opposing gripping clamps, and in use the robot arm is configured to drive the gripper assembly along a placement axis towards a placement surface via the connector body; a sensor configured to either measure a relative movement between the gripper assembly and the connector body or to measure a force between the gripper assembly and the connector body, wherein the sensor generates a sensor output signal based on the measurement; and, a controller configured to send a stop signal to the robot arm to stop further drive of the gripper assembly along the placement axis when the sensor output signal indicates the measured relative movement or measured force exceeds a predefined thre
Patent AU-2011226895-B1 (AU)
Title: An Enclosure and Method of Forming Same
Inventor: FORNO KEVIN JAMES
IPC: A01G9/28
Filed: 2011-09-27
Abstract: Abstract An enclosure including at least one elongate, substantially planar wall member and at least one post member having at least one each channel, each at least one wall member having an edge which fits into at least one edge channel, the edge of 5 the wall member having a plurality of spaced apart projections which extend from each side of the wall member, the edge channel having a pair of spaced apart, substantially parallel flanges between which the edge of a wall member is received and an abutment shoulder on at least one of the substantially parallel flanges in order to engage the projections on the wall member to allow passage thereof in a first 10 direction but prevent passage in a second, opposite direction.
Patent AU-2016219679-B1 (AU)
Title: Systems and methods for underwater illumination, survey, and wireless optical communications
Inventor: OOI BOON S
IPC: H04B13/02
Filed: 2016-08-26
Abstract: Embodiments of the present disclosure describe an underwater optical communication and illumination system employing a blue-light laser diode directly encoded with spectrally efficient orthogonal frequency division multiplex quadrature amplitude modulation (QAM-OFDM) data. A broadband light source may be utilized to provide both illumination to an underwater field of interest and underwater optical communication away from the field of interest.
Patent WO-2005107165-B1 (WO)
Title: Periode de balises adaptative dans un reseau reparti
Inventor: SALOKANNEL JUHA
IPC: H04J3/00
Filed: 2005-04-29
Abstract: Des noeuds multiples communiquent en utilisant des motifs répétés de supertrames comprenant chacune une période de balises. Un intervalle de balise dans un premier intervalle d'accès au support (MAS) est réservé par la pluralité de noeuds. Cet intervalle réservé apparaît au début de la période de balises et est utilisée pour communiquer des informations relatives à la configuration des supertrames. Ces informations peuvent impliquer des ajustements des nombres de MAS réservés pour le balisage.
Patent JP-3156703-B1 (JP)
Title: メトリック学習装置及びメトリック学習方法
IPC: G06F17/30
Filed: 2000-11-09
Granted: 2001-04-16
Abstract: 【要約】
【課題】  提示された情報に対するユーザの応答と情報 につけられたキーワードとの関係をメトリック信号に反 映させることを目的とする。
【解決手段】  情報データを提示する情報提示手段と、 前記提示された情報データが必要か不要かを入力する入 力手段と、前記情報に付けられた一つ以上のキーワード 信号からなるキーワード群信号をベクトル信号に変換す るベクトル変換手段と、情報データが必要か不要かとい う入力と前記ベクトル信号とから前記キーワードへのユ ーザの必要性を予測する値をメトリック信号に割り振る メトリック学習手段と、前記メトリック信号を記憶する メトリック記憶手段とを有するもので、ユーザーの必要 とする情報を取り出すために有効で、提示された情報に 対するユーザの応答と前記情報につけられたキーワード との関係を反映させ、メトリック信号を得ることができ る。
Patent JP-3361512-B1 (JP)
Title: 再生装置、再生方法
IPC: H04N19/70
Filed: 2002-06-26
Granted: 2003-01-07
Abstract: 【要約】
【課題】  動画像データとオーディオデータをインター リーブした構成であるシステムストリームを複数記録し た光ディスクにおいて、システムストリーム同士のスム ーズな接続を行なうための光ディスク並びにその再生装 置を提供する。
【解決手段】  光ディスクには、第１セルの再生後に第 ２セルが再生される場合、第１、第２セルはシームレス に再生されなければならないか、否かを示す情報を含 む。
Patent JP-3958348-B1 (JP)
Title: 携帯電話の制御方法、携帯電話及び携帯電話のプログラム
IPC: H04B7/26
Filed: 2006-09-27
Granted: 2007-08-15
Abstract: 【課題】複数の携帯電話用のアプリケーケーションと、ＷＥＢ制御のプログラムとを融合させてモバイル端末上で動作させることを可能とする。 【解決手段】モバイル端末（携帯電話等）上で動作するアプリケーションのプログラムをモバイル端末上で実行するステップと、アプリケーションのプログラムと連携動作可能なＷＥＢ制御のプログラムをモバイル端末上で実行するステップと、連携させると判断したときに、アプリケーションのプログラムとＷＥＢ制御のプログラムの各実行を連携プログラムにしたがって組み合わせ、組み合わせて実行したＷＥＢ制御のプログラムの実行結果と、アプリケーションのプログラムの実行結果とを合成してモバイルム端末に設けられた表示手段に表示させるステップと、を含む。 【選択図】図５
Patent JP-4148324-B1 (JP)
Title: 結紮用鉗子
IPC: A61B17/12
Filed: 2007-04-18
Granted: 2008-09-10
Abstract: 【課題】熟練者でなくとも簡単に、しかも正確且つ素早く結紮することができる結紮用鉗子を提供する。 
【解決手段】指入部を備えた一対のアーム部を枢軸部を支点として開閉操作することにより、そのアーム部と反対側の第一および第二可動部１４，１５が従動して開閉するように構成された結紮用鉗子において、上記両可動部１４，１５の少なくともいずれか一方に、縫合糸を離脱可能に掛止する掛止部１４ｄ，１４ｅ（および／または１５ｄ，１５ｅ）と、掛止された縫合糸を上記第一可動部１４（および／または第二可動部１５）の所定部位で保持するための溝部１４ｃ（および／または１５ｃ）とが備えられていることを特徴とする。 
【選択図】図２
Patent JP-4282735-B1 (JP)
Title: ディスクドライブ装置およびサーボ書込み方法
IPC: G11B21/10
Filed: 2007-12-27
Granted: 2009-06-24
Abstract: 【課題】複数のスパイラルサーボパターンを用いて、複数の放射状サーボパターンを精度良くディスク媒体上に書き込むことが可能なディスクドライブ装置を実現する。 
【解決手段】ディスクドライブ２０は、予め記録されたマルチスパイラルサーボパターンを使用して、放射状サーボパターンをディスク媒体１０上に書き込むためのセルフサーボ書込み処理を実行する。セルフサーボ書込み処理においては、探索されたスパイラルサーボパターン内のシンクマークの位置に対する当該他の各スパイラルサーボパターン内のシンクマークの位置のずれ量が検出され、当該検出されたずれ量を示す補正値が補正テーブルに格納される。そしてベースパターンとして使用すべきスパイラルサーボパターンが切り替えられる度、新たにベースパターンとして使用すべきスパイラルサーボパターンに対応する補正値が補正テーブルから取得されてサーボライトクロックの位相が調整される。 
【選択図】      図４