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1. 发明专利

JP2003030975A Disk device 有权
标题翻译：磁盘设备
公开(公告)号：JP2003030975A
公开(公告)日：2003-01-31
申请号：JP2002162119
申请日：2002-06-03
申请人： Fujitsu Ltd , 富士通株式会社
发明人： MIZOSHITA YOSHIBUMI , YAMADA TOMOYOSHI , KUROBA YASUMASA , KIMIHIRA TORU , SUGAWARA TAKAO , MATSUMOTO MASARU , MASE HIROYUKI , TSUNEKAWA MASAO , KOGANEZAWA SHINJI , ARIGA TAKAHARU
IPC分类号： G11B33/12 , G11B25/04
摘要： PROBLEM TO BE SOLVED: To impart a disk device which is utilizable as an external memory of a computer system with sufficient storage capacity at a low cost and further compactness property, reduced weight, low power consumption and mechanical impact resistance which are advantages for an IC memory card.
SOLUTION: The disk device is provided with a disk drive part for rotating a disk in which information is stored, a head mechanism part for write/read information in/from the disk and an electronic circuit, including an interface circuit, inside a housing. Furthermore, a connector connected with the electronic circuit is provided outside the housing; a frame which is an insertion guiding part for inserting the housing into a slot of an external apparatus is attached to an outer peripheral part of the housing, and a projection part for absorbing play and vibration in a state where the housing is inserted into the external apparatus, is formed at a part of the frame; so that the overall external size, including the housing and the connector and size of the IC memory card standardized by PCMCIA-ATA, have interchangeability.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了赋予具有足够的存储容量的计算机系统的外部存储器的盘装置，以低成本和进一步的紧凑性，减轻重量，低功耗和机械冲击强度，这是IC的优点存储卡。解决方案：磁盘设备设置有用于旋转存储信息的磁盘的磁盘驱动部件，用于在/从磁盘读/写信息的磁头机构部件和包括接口电路的电子电路。此外，与电子电路连接的连接器设置在壳体的外部; 作为用于将壳体插入到外部装置的槽中的插入引导部的框架安装在壳体的外周部，以及用于在壳体插入到外部的状态下吸收放置和振动的突起部装置，形成在框架的一部分; 使得由PCMCIA-ATA标准化的整体外部尺寸（包括外壳和连接器以及IC存储卡的尺寸）具有互换性。

2. 发明专利

JP2002367356A Disk device 审中-公开
标题翻译：磁盘设备
公开(公告)号：JP2002367356A
公开(公告)日：2002-12-20
申请号：JP2002162108
申请日：2002-06-03
申请人： Fujitsu Ltd , 富士通株式会社
发明人： MIZOSHITA YOSHIBUMI , YAMADA TOMOYOSHI , KUROBA YASUMASA , KIMIHIRA TORU , SUGAWARA TAKAO , MATSUMOTO MASARU , MASE HIROYUKI , TSUNEKAWA MASAO , KOGANEZAWA SHINJI , ARIGA TAKAHARU
IPC分类号： G11B33/12 , G11B11/105
摘要： PROBLEM TO BE SOLVED: To provide a disk device which can be utilized as an external memory of a computer system, has a sufficient memory capacity at a low cost and can be provided with compactness, lightness in weight, lower electric power consumption and mechanical impact resistance which are the advantages of an IC memory card.
SOLUTION: This disk device has a connector which is fixed to the outside of a housing including a base and a cover, a disk driving section which includes a spindle motor for rotating a disk to store information, a head mechanism section which writes and reads the information to and out of the disk and an electronic circuit including an interface circuit within the housing. The spindle motor has first bearing means for rotatably supporting the disk and a first fixing shaft for fixing the first bearing means into the prescribed position in the housing. The first fixing shaft is fitted into the base and is fixed by caulking. The external form dimensions including the housing and the connector are so set as to have interchangeability with the dimensions of the IC memory card standardized by a PCMCIA-ATA.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供可以用作计算机系统的外部存储器的盘装置，以低成本具有足够的存储容量，并且可以提供紧凑性，重量轻，降低功耗和机械冲击电阻是IC存储卡的优点。解决方案：该盘装置具有固定在包括基座和盖的外壳的外部的连接器，包括用于旋转盘以存储信息的主轴电机的盘驱动部，写入并读取进出磁盘的信息和包括壳体内的接口电路的电子电路。主轴电动机具有用于可旋转地支撑盘的第一轴承装置和用于将第一轴承装置固定在壳体中的规定位置的第一固定轴。第一固定轴安装在基座中，并通过铆接固定。包括壳体和连接器的外形尺寸被设置为与由PCMCIA-ATA标准化的IC存储卡的尺寸可互换。

3. 发明专利

JP2004355808A Disk device 审中-公开
公开(公告)号：JP2004355808A
公开(公告)日：2004-12-16
申请号：JP2004236804
申请日：2004-08-16
申请人： Fujitsu Ltd , 富士通株式会社
发明人： MIZOSHITA YOSHIBUMI , YAMADA TOMOYOSHI , KUROBA YASUMASA , KIMIHIRA TORU , SUGAWARA TAKAO , MATSUMOTO MASARU , MASE HIROYUKI , TSUNEKAWA MASAO , KOGANEZAWA SHINJI , ARIGA TAKAHARU
IPC分类号： G11B33/12
摘要： PROBLEM TO BE SOLVED: To provide a disk device which can be utilized as an external memory of a computer system, has a sufficient memory capacity at a low cost and can be provided with compactness, lightness in weight, lower electric power consumption and mechanical impact resistance. SOLUTION: This disk device has a disk having a diameter equal to or less than 1.89 inches, a disk driving section for rotating the disk, and a head mechanism section which writes and reads the information to and out of the disk within a housing. The housing is formed by combining a base and cover manufactured by press forming of ferrous metal and its thickness size is ≤8 mm. COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2003030974A Disk device 审中-公开
标题翻译：磁盘设备
公开(公告)号：JP2003030974A
公开(公告)日：2003-01-31
申请号：JP2002162109
申请日：2002-06-03
申请人： Fujitsu Ltd , 富士通株式会社
发明人： MIZOSHITA YOSHIBUMI , YAMADA TOMOYOSHI , KUROBA YASUMASA , KIMIHIRA TORU , SUGAWARA TAKAO , MATSUMOTO MASARU , MASE HIROYUKI , TSUNEKAWA MASAO , KOGANEZAWA SHINJI , ARIGA TAKAHARU
IPC分类号： G11B33/12 , G11B25/04
摘要： PROBLEM TO BE SOLVED: To impart a disk device which is utilizable as an external memory of a computer system have low cost and sufficient storage capacity, compactness characteristic which is advantageous for an IC memory card, light weight, low power consumption, and mechanical impact resistance. SOLUTION: This device is provided with one sheet of disk for storing information and having a diameter of 1.89 inch or less, a disk drive section rotating the disk, a head mechanism section performing write and read of information for the disk, and an electronic circuit comprising at least an interface circuit, inside of housing, a connector connected to the electronic circuit is provided at the out side of the housing, and the device is constituted, so that outside dimensions of a plane comprising the housing and the connector is approximately 85.6 mm×54 mm, thickness dimension is 8 mm or less.
摘要翻译：要解决的问题：为了赋予可用作计算机系统的外部存储器的盘装置具有低成本和足够的存储容量，对于IC存储卡有利的紧凑特性，重量轻，功耗低和机械冲击抵抗性。解决方案：本装置配有一张用于存储信息的盘片，直径为1.89英寸或更小，盘片驱动部分旋转，磁盘机构部分执行磁盘信息的写入和读取，电子电路至少包括接口电路，在壳体内部，连接到电子电路的连接器设置在壳体的外侧，并且该装置构成，使得包括壳体和连接器的平面的外部尺寸为大约85.6 mm×54mm，厚度尺寸为8mm以下。

5. 发明专利

JPH05234255A 失效
公开(公告)号：JPH05234255A
公开(公告)日：1993-09-10
申请号：JP3829292
申请日：1992-02-26
申请人： FUJITSU LTD
发明人： HAMURA YOSHIHIRO , MASE HIROYUKI
IPC分类号： G11B20/04 , G11B20/10
摘要： PURPOSE:To shorten pull-in time in an automatic gain control circuit. CONSTITUTION:This circuit is provided with a voltage control amplifying means 10 which controls gain based on control voltage held by a holding means 11 and amplifies an input signal to the prescribed level, and a control voltage generating means 13 which generates control voltage based on the level of an output signal from the voltage control amplifying means 10 and supplies it to the holding means 11. Also, the circuit is an automatic gain control circuit 9 which stops operation in writing data based on a switching signal sent from a control means 14 which controls the operation of writing or reading data, also is provided with a opening/closing means 12 which opens/closes a connection between the holding means 11 and the control voltage generating means 13 based on the switching signal, and the connection between the holding means 11 and the control voltage generating means 13 is opened at the time of writing data.

6. 发明专利

JPH05135333A INSULATION BREAKDOWN PREVENTIVE DEVICE FOR MAGNETIC HEAD 失效
公开(公告)号：JPH05135333A
公开(公告)日：1993-06-01
申请号：JP29613791
申请日：1991-11-13
申请人： FUJITSU LTD
发明人： TOSA MASAHARU , MASE HIROYUKI
IPC分类号： G11B5/40 , G11B21/21 , G11B25/04
摘要： PURPOSE:To prevent insulation breakdown in a transient period and to improve the reliability of a magnetic head by providing a detecting means which outputs a detection signal when the magnetic head attains a prescribed floating quantity. CONSTITUTION:This device has a signal voltage supplying means 3 for supplying a signal voltage to a magnetic head 1, a detecting means 4 for emitting the detection signal when the magnetic head 1 attains the prescribed floating quantity on a storage medium 2 and a connecting means for connecting the magnetic head 1 to a signal voltage supplying means 3 by this signal. A detecting means 4 outputs a detection signal when the storage medium 2 attains a prescribed rotating speed. The insulation breakdown in the transient period from the magnetic head 1 starts floating from the storage medium 2 until the specified floating quantity is attained is thereby prevented and therefore, the reliability of the magnetic head 1 is improved.

7. 发明专利

JPH0113320B2 失效
公开(公告)号：JPH0113320B2
公开(公告)日：1989-03-06
申请号：JP16750080
申请日：1980-11-28
申请人： FUJITSU LTD
发明人： CHIHARA KENICHI , MASE HIROYUKI
IPC分类号： H02P8/12 , H02P8/04 , H02P8/10

8. 发明专利

JPS63306571A TRACK ACCESS CONTROL SYSTEM FOR MAGNETIC DISK DEVICE 失效
公开(公告)号：JPS63306571A
公开(公告)日：1988-12-14
申请号：JP14075287
申请日：1987-06-06
申请人： FUJITSU LTD
发明人： EMORI TERUAKI , MASE HIROYUKI , KITAMURA IKUO
IPC分类号： G11B21/10 , G11B5/55 , G11B21/08
摘要： PURPOSE:To make it possible to connect the titled system to various host controllers without impressing any load and to attain effective offset correction by inhibiting a reading output and an index output and automatically updating an offset when the updating of the offset is not executed during a prescribed period. CONSTITUTION:A control means 4 is provided with a timer for managing offset correction timing to invalidate an offset value by time-out and to allow a host device having an error retrying function to output a seak instruction to accelerate the updating of offset correction. When the offset value is invalidated after time-out and a seak instruction is not received within a fixed time, the control means 4 temporarily inhibits a reading output and the output of an index signal from a magnetic disk 1 to automatically execute offset correction and then validates the reading output and the output of the index signal again. Consequently, the system can be connected to various devices without generating no change in the host devices and offset correction can be attained without generating any new load.

9. 发明专利

JPS61211886A HEAD POSITION DETECTING SYSTEM IN DISK DEVICE 失效
公开(公告)号：JPS61211886A
公开(公告)日：1986-09-19
申请号：JP5371585
申请日：1985-03-18
申请人： FUJITSU LTD
发明人： KOBAYASHI KYUKICHI , MASE HIROYUKI
IPC分类号： G11B21/10
摘要： PURPOSE:To simplify the titled device and to lower its cost by applying all-wave rectification to an analog signal corresponding to previously written information in two recording areas on a track obtained through a head, and detecting the radial direction position to the track of the head based on a wave height in a corresponding section of the respective recording areas of the all-wave rectifying signal. CONSTITUTION:In a reading system, a magnetic head 3 on a magnetic disk 2 rotating by a DC motor 1 is moved to a predetermined track position by driving a stepping motor 4 based on a seek instruction from a host device. When the magnetic head 3 reaches to a predetermined track position, an analog signal corresponding to an information recorded in the track through the magnetic head 3 and a head driving circuit 5 is outputted. This analog signal passes through a filter 6, respective processings of a differentiating circuit 7 and an amplifying circuit 8 and is converted into a rectangular pulse by a pulse shaper 9. Further, in a rear stage, based on the rectangular pulse from this pulse shaper 9, such a processing is done that an information recorded in the track is decoded.

10. 发明专利

JPS57113798A DRIVING SYSTEM OF PULSE MOTOR 失效
公开(公告)号：JPS57113798A
公开(公告)日：1982-07-15
申请号：JP18779680
申请日：1980-12-29
申请人： FUJITSU LTD
发明人： CHIHARA KENICHI , MASE HIROYUKI
IPC分类号： H02P8/12 , H02P1/16 , H02P8/10
摘要： PURPOSE:To generate the sufficiently big torque even in the different phasial exciting state at the time of starting to highten the rise of speed by controlling the timing of a driving pulse at the starting time. CONSTITUTION:When starting being changed-over from the two-phase excitation to the one-phase excitation, of the driving pulse groups PLS1, PLS2... the time t2 from the first driving pulse PLS1 to the second driving pulse PLS2 is shortened, besides the time t3-t2 from the second driving pulse PLS2 to the third driving pulse is lengthened. The second driving pulse PLS2 triggers the second timer circuit MM II so that the gate signals from the second timer circuit MM II becomes 0 for the time t0. Accordingly an inhibit circuit INH does not pass the output of an ''OR'' gate for said period.

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