专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明授权

EP0529056B1 FOCUS FIBER MOUNT 失效
标题翻译：接环焦点纤维
公开(公告)号：EP0529056B1
公开(公告)日：1995-12-27
申请号：EP92908309.5
申请日：1992-03-11
申请人： EASTMAN KODAK COMPANY
发明人： FERSCHL, Michael, Stephan , KEMP, Eileen, M. , ZIELINSKI, Erich , CUTAIA, James, Allen , KAUKEINEN, Joseph, Y.
IPC分类号： B41J2/475 , G11B7/09 , G11B7/125 , G11B7/14
CPC分类号： G11B7/127 , B41J2/46 , B41J2/475 , G11B7/0908 , G11B7/14
摘要： In an imaging apparatus utilizing a rotating carrier member arranged to carry a writing element, a source of light is provided which is movable with respect to the writing element to project a writing beam of light onto the writing element to generate an image. The source of light comprises a plurality of laser diodes and a plurality of optical fibers connecting the diodes to a movable writing head adjacent the carrier member, with the optical fibers in the writing head have output ends arranged in a linear array. The improvement comprises a substantially planar support substrate disposed in the writing head arranged to support the output ends of the optical fibers on a first surface thereof. The substrate is provided with a plurality of grooves on the first surface with each groove receiving the output end of an individual fiber. A focusing arrangement is provided for focusing the writing beam with respect to the writing element and comprises a laser diode for generating a focusing beam of light to be projected onto the writing element, and a photocell. A focusing optical fiber connects the focusing diode to the writing head, with the end of the focusing optical fiber at the writing head being supported on the opposite surface of the substrate from the first surface substantially centrally of the linear array of the writing beam optical fibers. Thus, the focusing beam is projected onto the writing element ahead of the writing beam and is separated from the writing beam when it is detected by the photocell.

82. 发明授权

EP0420475B1 Focus capture method for magneto-optic disk drives 失效
标题翻译：磁光盘驱动器装置的聚焦搜索方法。
公开(公告)号：EP0420475B1
公开(公告)日：1995-10-18
申请号：EP90310203.6
申请日：1990-09-18
申请人： Hewlett-Packard Company
发明人： McDonald, James C , Hofer, Gregory V
IPC分类号： G11B7/09 , G11B11/10
CPC分类号： G11B7/08511 , G11B7/0908 , G11B7/0945 , G11B11/10576 , G11B11/10595

83. 发明授权

EP0390467B1 Digital servo control apparatus 失效
标题翻译：数字伺服控制器。
公开(公告)号：EP0390467B1
公开(公告)日：1995-06-28
申请号：EP90303199.5
申请日：1990-03-26
申请人： CANON KABUSHIKI KAISHA
发明人： Ogino, Tsukasa
IPC分类号： G11B7/09 , G11B21/08
CPC分类号： G11B7/0945 , G11B7/0901 , G11B7/0908

84. 发明授权

EP0351675B1 Focusing error detecting apparatus 失效
标题翻译：检测器装置，用于测量聚焦的偏差。
公开(公告)号：EP0351675B1
公开(公告)日：1994-11-02
申请号：EP89112505.6
申请日：1989-07-07
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA
发明人： Seya, Masatomo Mitsubishi Denki K.K. , Tadokoro, Michihiro Mitsubishi Denki K.K. , Okada, Kazuo Mitsubishi Denki K.K.
IPC分类号： G02B7/09 , G02B27/16 , G11B7/09 , G02B7/28
CPC分类号： G11B7/1381 , G02B27/16 , G11B7/0908 , G11B7/0916 , G11B7/13

85. 发明公开

EP0618569A1 Focusing servo system and focus servo acquisition enable method 失效
标题翻译：伺服系统用于聚焦和方法用于使聚焦伺服系统的检测。
公开(公告)号：EP0618569A1
公开(公告)日：1994-10-05
申请号：EP94105187.2
申请日：1994-03-31
申请人： SONY CORPORATION
发明人： Miyazono, Shunichi, Sony Corporation
IPC分类号： G11B7/00 , G11B7/09
CPC分类号： G11B11/10576 , G11B7/005 , G11B7/08511 , G11B7/0908
摘要： A focusing servo system comprises a signal generating unit (7), a focusing servo unit (9), a zero crossing detecting unit, a search signal generating unit and a system controller (11). The signal generating unit (7) generates a focus error signal on the basis of the position of an objective lens (3a), through which a light beam is projected on an optical recording medium (1), with respect to a direction perpendicular to the recording surface of the optical recording medium (1) by using the reflected light beam from the recording surface of the optical recording medium (1), a read signal representing information read from the optical recording medium (1) on the basis of the reflected light beam and a focus acquisition enable range signal representing a focus acquisition enable range on the basis of the read signal. The focusing servo unit (9) receives the focus error signal from the signal generating unit (7) and executes a focusing servo control operation for focusing the objective lens (3a) on the basis of the focus error signal. The zero crossing detecting unit receives the focus error signal from the signal generating unit and detects a zero crossing point in the focus error signal. The search signal generating unit generates a down-search signal and an up-search signal respectively for driving the objective lens (3a) for movement toward and away from the recording surface of the optical recording medium (1). The system controller receives the focus acquisition enable range signal from the signal generating unit and a zero crossing detection signal from the zero crossing detecting unit, selectively supplies the search signals generated by the search signal generating means and the focus error signal generated by the signal generating unit (7) to the focusing servo unit, and executes a control operation on the basis of the focus acquisition enable range signal received from the signal generating means (7) and the zero crossing detection signal received from the zero crossing detecting unit to supply the focus error signal provided by the signal generating means instead of the search signal provided by the search signal generating unit in a predetermined time after the start of the movement of the objective lens (3a) away from the recording surface of the optical recording medium (1) during the movement of the objective lens (3a) from its initial position away from the recording surface of the optical recording medium (1).
摘要翻译：聚焦伺服系统包括：信号生成单元（7），一个聚焦伺服单元（9），一个过零点检测单元，搜索信号发生单元和系统控制器（11）。所述信号产生单元的物镜（3a）中，通过其的光束被相对于投射到光学记录介质（1）的方向垂直于所述的位置的基础上，（7）基因率的聚焦误差信号通过使用反射光束从光学记录介质的记录表面的光学记录介质（1）的记录面（1），表示信息的读取信号从光学记录介质读取（1）的反射光的基础上光束和焦点获取启动表示焦点获取读出信号的基础上使能范围范围信号。聚焦伺服单元（9）接收来自信号发生单元的聚焦误差信号（7），执行用于聚焦物镜（3a）的聚焦误差信号的基础上，一个聚焦伺服控制操作。零交叉点检测单元接收来自信号发生单元的聚焦误差信号并检测聚焦误差信号的零交叉点。搜索信号发生单元基因率下行搜索信号和分别到上行搜索信号，用于从光学记录介质的记录表面驱动物镜（3A），用于运动朝向和离开（1）。该系统控制器接收到焦点获取启动从信号产生单元，并从零交叉点检测单元的零交叉检测信号范围的信号，选择性地供给由所述搜索信号产生装置，并通过信号产生所产生的聚焦误差信号生成的搜索信号单元（7）到聚焦伺服单元，并且执行焦点获取的基础上操作的控制使能范围内的信号接收的信号产生装置（7）和从过零接收检测单元，以供给所述零交叉检测信号由信号产生的提供聚焦误差信号的装置，而不是由搜索信号生成部的物镜（3A）的移动的开始之后的预定时间提供的搜索信号从光学记录介质的记录表面相距（1 ）所述的物镜（3a）中的从其初始位置从理论值的所述记录面的运动期间离开 È光学记录介质（1）。

86. 发明公开

EP0588385A3 Recording/reproducing apparatus of optical card 失效
标题翻译：记录/重现光学装置
公开(公告)号：EP0588385A3
公开(公告)日：1994-06-15
申请号：EP93119288.4
申请日：1990-02-12
申请人： OMRON CORPORATION
发明人： Kentatsu, Kunihiro, c/o Omron Corporation , Tsuboi, Kazuo, c/o Omron Corporation , Ishida,Takeshi c/o Omron Corporation
IPC分类号： G11B7/00 , G11B7/13
CPC分类号： H01L33/20 , G11B7/0033 , G11B7/0901 , G11B7/0908 , G11B7/0917 , G11B7/094 , G11B7/127 , G11B7/131 , G11B7/133 , G11B7/1398 , G11B7/14 , G11B17/0408 , G11B25/04 , G11B2007/0924 , H01L33/0062
摘要： An optical card recording/reproducing apparatus for recording/reproducing information onto/from an optical card (1) by relatively moving the optical card to an optical head is provided. The optical head has an optical system for producing focusing and tracking control signals. The optical system includes a light emitting diode (119) having a narrow slit-like light emitting surface as a light source. The optical system has photo sensitive elements for focusing control, a photo sensitive element for tracking control, and a recorded information reproducing photo sensitive element which are used to detect the reflected lights from the optical card of a slit light which is emitted from the light emitting diode. By forming a slit-like light spot onto the optical card, the focusing and tracking controls can be accurately easily executed and the deterioration in pits and track guides is prevented.

87. 发明授权

EP0319033B1 Method for detecting focus error using light beams having astigmatism and optical information processing system using this method. 失效
标题翻译：一种用于通过具有用于处理使用这种方法的光学信息的散光和系统光束来检测聚焦误差的方法。
公开(公告)号：EP0319033B1
公开(公告)日：1994-03-30
申请号：EP88120168.5
申请日：1988-12-02
申请人： HITACHI, LTD.
发明人： Nakamura, Shigeru , Maeda, Takeshi
IPC分类号： G11B7/09 , G11B7/085
CPC分类号： G11B11/10578 , G11B7/0908 , G11B7/0909 , G11B7/0912 , G11B7/0917 , G11B7/0938 , G11B7/094 , G11B7/0945 , G11B11/10576

88. 发明授权

EP0304932B1 Optical disk access system 失效
标题翻译：访问系统光盘。
公开(公告)号：EP0304932B1
公开(公告)日：1994-02-16
申请号：EP88113952.1
申请日：1988-08-26
申请人： FUJITSU LIMITED
发明人： Yanagi, Shigenori FUJITSU LIMITED , Sasaki, Masateru FUJITSU LIMITED , Minami, Akira FUJITSU LIMITED , Iwamoto, Toshitaka FUJITSU LIMITED , Tanaka, Shigeyoshi FUJITSU LIMITED
IPC分类号： G11B7/09 , G11B7/085
CPC分类号： G11B7/0945 , G11B7/08511 , G11B7/0908 , G11B7/094

89. 发明授权

EP0308022B1 Apparatus for optically scanning a radiation-reflective information plane 失效
标题翻译：一种用于扫描一个反射辐射的信息表面的光辐射设备。
公开(公告)号：EP0308022B1
公开(公告)日：1993-12-15
申请号：EP88201983.9
申请日：1988-09-13
申请人： Philips Electronics N.V.
发明人： Coops, Peter
IPC分类号： G11B7/09 , G02B27/16
CPC分类号： G11B7/1381 , G02B27/16 , G11B7/0908 , G11B7/0916 , G11B7/094

90. 发明公开

EP0532246A3 Lens focusing method and means 失效
标题翻译：镜头聚焦方法与手段
公开(公告)号：EP0532246A3
公开(公告)日：1993-04-21
申请号：EP92308084.0
申请日：1992-09-07
申请人： International Business Machines Corporation
发明人： Dente, James John , Fennema, Alan August
IPC分类号： G11B7/09 , G02B7/04
CPC分类号： G11B7/08511 , G11B7/0908
摘要： In a focus acquire system on an optical disk recorder, a focus error signal FES 33 has a peak amplitude of 34 at the start of a linear region 38 within which occurs a desired focus position 99. The FES 33 is modified to produce a modified FES 105 which has a peak amplitude 106 occurring closer to the desired focus position 99 than the occurrence of peak amplitude 34 of the FES. The FES 33 is differentiated to produce a differentiated FES 100. The differentiated FES 100 is then subtracted from FES 33 to produce the modified FES 105. The modified FES 105 is compared with a threshold 109 and a near-focus position is detected upon agreement at point 110. This narrows the area 107 within which in-focus position is to be found.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式