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121. 发明公开

EP0869491A2 Disc clamper and disc drive provided with the disc clamper 失效
标题翻译： Plattenklemme und Laufwerk damit
公开(公告)号：EP0869491A2
公开(公告)日：1998-10-07
申请号：EP98105994.2
申请日：1998-04-01
申请人： Mitsumi Electric Company Ltd.
发明人： Furukawa, Ken'ichi , Teranishi, Kouji , Manabe, Satoru
IPC分类号： G11B17/028 , G11B17/04
CPC分类号： G11B33/121 , G11B7/08582 , G11B17/0284 , G11B17/0288 , G11B17/056
摘要： An improved disc clamper and a disc drive equipped with the disc clamper is disclosed. The disc clamper is used in a disc drive for carrying out playing back or playing back and recording of a disc which is rotated by means of a turntable movable between a raised position and a lowered position. The disc clamper is supported rotatably and movably in up and down direction by a support member with an opening provided above the turntable so as to hold the disc between the clamper and the turntable moved to the raised position The disc clamper comprises a disc clamper main body including a cylindrical part, which has a substantially cylindrical shape and a diameter almost equal to the diameter of the turntable, to be inserted into the opening in the support member, and a flange part provided integrally with the upper circumference of the cylindrical part so as to be supported on the upper surface of the support member, an attraction means provided in the disc clamper main body to be attracted to the turntable, and a plurality of disc pressing protrusions projecting outward in the radial direction from the lower circumference of the cylindrical part of the disc clamper main body. This disc clamper is light and has a simple structure for easy assembling, and makes it possible to press the top surface of the disc with an effectively large area.
摘要翻译：公开了一种改进的盘夹持器和配备有盘夹持器的盘驱动器。光盘夹持器用于盘驱动器中，用于执行通过可在升高位置和降低位置之间移动的转盘旋转的盘的回放或再现和记录。盘式夹持器由具有设置在转台上方的开口的支撑构件沿上下方向可旋转地和可移动地支撑，以便将盘保持在夹持器和移动到升高位置的转盘之间。盘夹持器包括盘夹持器主体包括圆筒形部分，其具有基本上圆柱形的形状，并且直径几乎等于转台的直径，以插入到支撑构件的开口中;以及凸缘部分，其与圆柱形部分的上周一体设置，以便被支撑在支撑构件的上表面上，设置在盘夹持器主体中以被吸引到转台的吸引装置，以及从圆柱形部分的下圆周向径向外侧突出的多个圆盘按压突起的盘夹持器主体。该盘夹持器是轻的并且具有简单的组装结构，并且可以有效地大面积地按压盘的顶表面。

122. 发明公开

EP0844813A2 Assembling structure of a plurality of shield casings 失效
标题翻译： Zusammensetzung von mehreren abgeschirmtenGehäusen
公开(公告)号：EP0844813A2
公开(公告)日：1998-05-27
申请号：EP97120500.0
申请日：1997-11-21
申请人： Mitsumi Electric Company Ltd.
发明人： Yajima, Hideo, c/o Mitsumi Electric Co., Ltd.
IPC分类号： H05K9/00 , H05K5/00
CPC分类号： H05K9/006 , H05K5/0021 , H05K9/0022
摘要： An assembling structure of a plurality of shield casings which is so designed that first and second shield casings 11 and 12 which are cylindrical and substantially equal in cross section are stacked in a direction of height thereof; in which an intermediate shield cover 22 is interposed between the first and second shield casings 11 and 12, the intermediate shield cover 22 including: a flat plate 22A which covers not only the bottom surface of the first shield casing 11 but also the top surface of the second shield casing 12; first side wall retaining springs 31 which are extended from the outer edges of the flat plate 22A and bent upwardly, to press against the side walls of the first shield casing 11; and second side wall retaining springs 32 which are extended from the outer edgers of the flat plate 22A and bent downwardly, to press against the side walls of the second shield casing 12.
摘要翻译：多个屏蔽壳体的组装结构被设计成使得圆柱形并且基本上相等于横截面的第一和第二屏蔽壳体11和12沿其高度方向堆叠; 其中中间屏蔽罩22插入在第一和第二屏蔽壳体11和12之间，中间屏蔽盖22包括：平板22A，其不仅覆盖第一屏蔽壳体11的底表面，而且覆盖第一屏蔽壳体11的顶表面第二屏蔽壳体12; 第一侧壁保持弹簧31，其从平板22A的外边缘延伸并向上弯曲，以压靠第一屏蔽壳体11的侧壁; 以及第二侧壁保持弹簧32，其从平板22A的外边缘延伸并向下弯曲，以压靠第二屏蔽壳体12的侧壁。

123. 发明公开

EP0833321A1 Disc drive and driving method of loading motor in the disc drive 失效
标题翻译： Plattenantrieb und SteuerverfahrenfürLedemotor darin
公开(公告)号：EP0833321A1
公开(公告)日：1998-04-01
申请号：EP97116800.0
申请日：1997-09-26
申请人： Mitsumi Electric Company Ltd.
发明人： Yasuma, Toshihiko, c/o Mitsumi Electric Co. Ltd., , Igarashi, Takayuki, c/o Newtronics Co. Ltd., , Furukawa, Ken'ichi, c/o Mitsumi Electric Co., Ltd.
IPC分类号： G11B17/04
CPC分类号： G11B17/05
摘要： A disc drive includes a disc drive main body having a playback or recording/playback mechanism of a disc and a disc tray which is constructed to support the disc thereon and is movable with respect to the disc drive main body between a disc eject position and a disc loaded position; and a motor provided in the disc drive main body for moving the disc tray, wherein the moving speed of the disc tray is variable by changing the number of rotations of the motor. The motor is driven by rectangular pulses from the motor driver, in which the number of rotations of the motor is varied by changing the on/off widths of the rectangular pulses so that the moving speed of the disc tray is reduced in a stepwise manner over the period from the start to the stop of the disc tray movement. This enables to realize a high speed movement of the disc tray without increasing the load to be imposed on the disc and the loading mechanism and the like with the use of a relatively small gear ratio in the rotational speed reduction mechanism, which results in easy operation of the emergency eject mechanism and the manual loading mechanism.
摘要翻译：磁盘驱动器包括具有盘的重放或记录/重放机构的盘驱动器主体和盘托盘，该盘托盘被构造成在其上支撑盘并且可相对于盘驱动器主体在盘弹出位置和盘装载位置; 以及设置在盘驱动器本体中用于移动盘托盘的马达，其中盘托盘的移动速度可通过改变马达的转数而变化。马达由来自马达驱动器的矩形脉冲驱动，其中通过改变矩形脉冲的开/关宽度来改变马达的转数，使得盘托架的移动速度以逐步方式逐渐减小从盘片托盘运动的开始到停止的时间段。这使得能够实现盘托盘的高速运动，而不会增加转速降低机构中使用相对小的齿轮比而施加在盘和加载机构等上的负载，这导致容易的操作的紧急弹出机构和手动装载机构。

124. 发明公开

EP0725457A1 Integral type flat antenna provided with converter function 失效
标题翻译： Integrierte Flachantenne mit Umwandlungsfunktion
公开(公告)号：EP0725457A1
公开(公告)日：1996-08-07
申请号：EP96101361.2
申请日：1996-01-31
申请人： Mitsumi Electric Company Ltd.
发明人： Ogino, Toshikazu, c/o Mitsumi Elec. Co., Ltd. , Shibano, Hayato, c/o Mitsumi Elec. Co., Ltd. , Hosaka, Eiki, c/o Mitsumi Elec. Co., Ltd.
IPC分类号： H01Q1/38
CPC分类号： H01Q1/38 , H01Q1/247
摘要： An integral type flat antenna (30) provided with a converter function includes an antenna element (42) having a feeding point (46) and an integrally formed multilayered substrate (33) for supporting the antenna element (42) thereon. The multilayered substrate (33) includes a grounding plane layer (41) on which the antenna element (46) is mounted, a first insulating layer (34) provided below the grounding plane layer (41), a second insulating layer (35) positioned below the first insulating layer (34) and provided with a frequency conversion circuit (45) for carrying out a converter function on frequency of received signals, the frequency conversion circuit (45) having a signal input portion (37a) which is positioned at one end of the second insulating layer (35), and a conducting layer (36) provided between the first and second insulating layers (34,35) for connecting the feeding point (46) of the antenna element (42) to the signal input section (37a) of the frequency conversion circuit (45).
摘要翻译：设置有转换器功能的整体式平面天线（30）包括具有馈电点（46）的天线元件（42）和用于在其上支撑天线元件（42）的整体形成的多层基板（33）。多层基板（33）包括安装天线元件（46）的接地平面层（41），设置在接地平面层（41）下方的第一绝缘层（34），位于在第一绝缘层（34）的下方并具有频率转换电路（45），用于对接收信号的频率进行转换器功能，频率转换电路（45）具有位于一个的信号输入部分（37a）第二绝缘层（35）的端部和设置在第一和第二绝缘层（34,35）之间的导电层（36），用于将天线元件（42）的馈电点（46）连接到信号输入部分（37a）的频率转换电路（37a）。

125. 发明公开

EP0720157A2 Video compact disc drive 失效
标题翻译：驱动单元视频压缩光盘
公开(公告)号：EP0720157A2
公开(公告)日：1996-07-03
申请号：EP95120681.2
申请日：1995-12-28
申请人： Mitsumi Electric Company Ltd.
发明人： Sugie,Noburu c/oAlpha Peripherals , Tanaka, Akio c/o Mitsumi Electric Co.,Ltd.
IPC分类号： G11B7/00 , G11B19/02
CPC分类号： G11B19/02 , G09B5/065 , G11B7/0037 , H04N5/765 , H04N5/781 , H04N5/9264 , H04N5/93
摘要： An improved video disc drive which is capable of reproducing a motion picture from a compact disc as well as conventional applications including a digital audio and a computer data base is disclosed. The video disc drive includes an optical unit for providing an optical beam to a surface of a compact disc to sense a reflected optical beam indicative of pits on said compact disc and generating an electric signal corresponding to the sensed optical beam, a servo controller for controlling a rotation of the compact disc and positioning the optical unit on the surface of the compact disc, an amplifier for amplifying the electric signal from the optical unit to an amplitude greater than a predetermined level, a digital signal processor for demodulating the electric signal from the amplifier to reproduce digital data and error-correcting the digital data, a CD-ROM decoder for decoding the digital data from the digital signal processor and providing the decoded digital data to a host computer or other external device through a CD-ROM standard interface bus, an MPEG decoder for separating the video data from audio data from motion picture data from the digital signal processor and decoding the video data and the audio data based on a predetermined protocol and outputting the decoded video and audio data to an external monitor, and a micro-computer for controlling an overall operation of the disc drive based on the instruction from the host computer or other external device by controlling the servo controller, the CD-ROM decoder and the MPEG decoder.

126. 发明授权

EP0584416B1 Connector 失效
公开(公告)号：EP0584416B1
公开(公告)日：1996-02-07
申请号：EP92307897.6
申请日：1992-08-28
申请人： Mitsumi Electric Company Ltd.
发明人： Koshikawa, Kiyoshi , Fujieda, Hiroyuki , Konno, Takeshi
IPC分类号： H01R13/648
CPC分类号： H01R13/4538 , H01R13/4536 , H01R13/6315 , H01R13/6485

127. 发明公开

EP0645767A2 Disk driver having a disk holder table with a holder ring 失效
标题翻译：磁盘驱动器有一个磁盘架和一个支架环
公开(公告)号：EP0645767A2
公开(公告)日：1995-03-29
申请号：EP94306956.7
申请日：1994-09-22
申请人： Mitsumi Electric Company Ltd.
发明人： Komatsu, Hisateru, c/o Yamagata Mitsumi Co., Ltd. , Watanabe, Takashi, c/o Yamagata Mitsumi Co., Ltd.
IPC分类号： G11B17/028
CPC分类号： G11B17/0282 , G11B17/028
摘要： A disk holder table has a bottom surface to which a holder ring for holding a drive roller is assembled. The holder ring is made of metal and has a generally rectangular shape. The holder ring is engaged by hooks formed on the bottom surface of the disk holder table. The disk holder table has guide portions formed on the bottom surface thereof to restrict the range of rotation of the holder ring in parallel to the bottom surface. The holder ring is urged in a predetermined direction by a rod spring formed on the bottom surface.
摘要翻译：盘保持台具有组装用于保持驱动辊的保持环的底面。支架环由金属制成并具有大致矩形的形状。保持环通过形成在盘保持台的底表面上的钩来接合。盘保持台具有形成在其底表面上的导向部分，以限制保持环的旋转范围平行于底表面。支架环由形成在底面上的杆弹簧沿预定方向推动。

128. 发明公开

EP0584416A1 Connector 失效
标题翻译：连接器
公开(公告)号：EP0584416A1
公开(公告)日：1994-03-02
申请号：EP92307897.6
申请日：1992-08-28
申请人： Mitsumi Electric Company Ltd.
发明人： Koshikawa, Kiyoshi , Fujieda, Hiroyuki , Konno, Takeshi
IPC分类号： H01R13/648
CPC分类号： H01R13/4538 , H01R13/4536 , H01R13/6315 , H01R13/6485
摘要： An electrical connector comprises a socket connector (10) including a cover (17) and a plug connector (26) to be engaged with the socket connector, wherein the cover is made of metal, and is pivotally, rotatably mounted at one end to a molded connector body (11) and biased by a spring (18) having a connecting portion (25) for connection to a ground, whereby the metal cover (17) is connected to the ground by the spring.
摘要翻译：本发明公开了一种电连接器，包括：包括盖（17）和与插座连接器接合的插头连接器（26）的插座连接器（10），其中盖由金属制成，并且在一端枢转地可旋转地安装到（11）上并由具有用于连接到地面的连接部分（25）的弹簧（18）偏压，由此金属盖（17）通过弹簧连接到地面。

129. 发明公开

EP0531162A3 Magnetic head device with cleaning means for cleaning sliding surface thereof 失效
标题翻译：具有清洁滑动表面的清洁装置的磁头装置
公开(公告)号：EP0531162A3
公开(公告)日：1993-07-14
申请号：EP92308062.6
申请日：1992-09-04
申请人： PIONEER ELECTRONIC CORPORATION , Mitsumi Electric Company Ltd.
发明人： Saito, Akio, c/o Pioneer Electronic Corporation , Ikeda, Hideyuki, c/o Yamagata Mitsumi Co., Ltd.
IPC分类号： G11B5/41
CPC分类号： G11B5/41
摘要： A magnetic head (10) has a sliding surface (11) comprising a sliding portion for sliding on a magnetic recording medium. A head holder (30) has a head holding portion for holding the magnetic head (10), and at least one guiding portion (20) located in a side of and far apart from said magnetic head (10) fixed on said holding portion. The guiding portion (20) guides a running course of the magnetic recording medium, and the head holding portion and guiding portion (20) are integral with the head holder (30). A cleaning device (40) is provided with said head holder (30) so as to be pivotable, and when the cleaning device (40) is pivoted it slides so as to clean the sliding surface (11) of the magnetic head (10).

130. 发明公开

EP0531162A2 Magnetic head device with cleaning means for cleaning sliding surface thereof 失效
标题翻译： Magnetkopfvorrichtung mit Reinigungsmitteln zur Reinigung derGleitflächedafür。
公开(公告)号：EP0531162A2
公开(公告)日：1993-03-10
申请号：EP92308062.6
申请日：1992-09-04
申请人： PIONEER ELECTRONIC CORPORATION , Mitsumi Electric Company Ltd.
发明人： Saito, Akio, c/o Pioneer Electronic Corporation , Ikeda, Hideyuki, c/o Yamagata Mitsumi Co., Ltd.
IPC分类号： G11B5/41
CPC分类号： G11B5/41
摘要： A magnetic head (10) has a sliding surface (11) comprising a sliding portion for sliding on a magnetic recording medium. A head holder (30) has a head holding portion for holding the magnetic head (10), and at least one guiding portion (20) located in a side of and far apart from said magnetic head (10) fixed on said holding portion. The guiding portion (20) guides a running course of the magnetic recording medium, and the head holding portion and guiding portion (20) are integral with the head holder (30). A cleaning device (40) is provided with said head holder (30) so as to be pivotable, and when the cleaning device (40) is pivoted it slides so as to clean the sliding surface (11) of the magnetic head (10).
摘要翻译：磁头（10）具有滑动面（11），该滑动面（11）包括用于在磁记录介质上滑动的滑动部分。头保持器（30）具有用于保持磁头（10）的头部保持部分和位于固定在所述保持部分上的所述磁头（10）的一侧并远离其的至少一个引导部分（20）。引导部分（20）引导磁记录介质的运行过程，并且头部保持部分和引导部分（20）与头部保持器（30）成一体。清洁装置（40）设置有可旋转的头部保持器（30），并且当清洁装置（40）枢转时，其滑动以清洁磁头（10）的滑动表面（11）。

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