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公开(公告)号:MX9605858A
公开(公告)日:1997-08-30
申请号:MX9605858
申请日:1996-11-26
Applicant: FORD MOTOR CO
Inventor: ORTIZ EDMUNDO , MOLINAR ALFONSO , SOLANO MARIO ALBERTO
IPC: G11B15/02 , G11B15/093 , G11B15/44 , G11B05/78
Abstract: Se proporciona un mecanismo de transporte de cinta de cassette con medios para detectar rápidamente la detencion de un carrete de admision, ocasionando de esta manera que se inicie un ciclo de cambio de direccion de cinta antes de que una cantidad significativa de cinta pueda formar un amontonamiento durante una condicion de mordido de cinta. El numero de cambios de direccion de cinta dentro de un tiempo predeterminado también se cuenta y compara con un límite de referencia para detectar un mal funcionamiento de mordido de cinta. La cinta puede expulsarse automáticamente y un mensaje de error enviarse a la exhibicion de reproduccion de cinta, permitiendo que el usuario limpie el cassette o el mecanismo de reproducto elimina substancias pegajosas que puedan estar ocasionando la condicion de mordido de cinta.
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公开(公告)号:MX9708326A
公开(公告)日:1998-01-31
申请号:MX9708326
申请日:1996-05-13
Applicant: MACROVISION CORP
Inventor: RYAN JOHN O , MORRISON ERIC FRASER , COPELAND GREGORY C
Abstract: Un sistema para proporcionar datos de rastreo y seguridad para medios de video de renta, entre los que se incluyen discos digitales de video y casetes digitales de video. Los nuevos formatos de las reproductoras de video y medios permiten la inclusion de características de seguridad que permiten el rastreo de la renta de esos medios y, a la vez, evitan la renta no autorizada de los mismos. Cada reproductora incluye un circuito de decision que reproduce un disco particular ( o cinta) solamente si el numero de identificacion de la reproductora, que está grabado en una tarjeta de memoria de autorizacion, separada, especial, es idéntico al numero de identificacion de la reproductora grabado en la misma, y si un numero de identificacion de película que se lee opticamente a partir del disco coincide con el numero de identificacion de película grabado en la tarjeta especial. Se proporciona un aparato correspondiente en el establecimiento de renta de video con el que, al momento de rentar el video, se graba en la tarjeta de autorizacion, en forma cifrada, el numero de identificacion y el numero de la reproductora de discos en particular para la cual está destinada la renta. El cifrado utiliza una clave especial de un sistema publico de claves, la clave publica y el modulo se graban previamente en la porcion optica del disco.
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公开(公告)号:EP0110365A3
公开(公告)日:1985-06-19
申请号:EP83111898
申请日:1983-11-28
Applicant: OLYMPUS OPTICAL CO., LTD.
Inventor: Yunoki, Yutaka , Kimura, Kenji , Kato, Akira , Imamura, Tasuo
IPC: G11B05/008 , G11B05/52 , G11B05/78 , G11B05/12 , G11B05/02
CPC classification number: G11B5/531 , G11B5/0086 , G11B5/02 , G11B5/1278 , G11B5/534 , G11B5/538 , H04N5/78263
Abstract: A helical scanning type video tape recorder having a rotary cylinder (2) which is slidable on a video tape (3); and a pair of vertical magnetization recording heads (11, 12) mounted on the peripheral wall of the rotary cylinder (2) at prescribed positions; that plane of the vertical magnetization recording heads (11, 12) which faces the magnetic plane of the video tape (3) being provided with a main magnetic pole (33) and auxiliary magnetic pole (31), thereby causing at least one portion (34a) of the recording magnetic flux (Φ) passing from the auxiliary magnetic pole (31) to the main magnetic pole (33) to penetrate the recording magnetic layer (3c) of the video tape (3) at substantially right angles.
Abstract translation: 一种具有可在录像带(3)上滑动的旋转圆柱体(2)的螺旋扫描型录像机; 和一对在预定位置安装在旋转圆筒(2)周壁上的垂直磁化记录头(11,12) 垂直磁化记录头(11,12)的面对录像带(3)的磁性平面的那个平面设置有主磁极(33)和辅助磁极(31),从而导致至少一部分 从辅助磁极(31)通到主磁极(33)的记录磁通量(Φ)的大小(图34a)基本上以直角穿过录像带(3)的记录磁性层(3c)。
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公开(公告)号:WO1986001928A1
公开(公告)日:1986-03-27
申请号:PCT/US1985001768
申请日:1985-09-13
Applicant: DENNISON MANUFACTURING COMPANY
IPC: G11B05/78
CPC classification number: B65H75/22 , B65H2701/514 , G11B15/67 , G11B23/037
Abstract: Apparatus for removing all or part of a roll of magnetic tape stored in a reel of a reel-to-reel tape transport device (100). The apparatus consists of a stripper reel (10) which is structurally compatible with a reel mounting hub of the transport device. The stripper reel includes a hard circular "reel core" (20) mounted to the hub and supporting front and back flanges, as well as a resilient annular "tape core" (30) fitted around the reel core.
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公开(公告)号:WO1995006313A1
公开(公告)日:1995-03-02
申请号:PCT/US1994008003
申请日:1994-07-18
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
Inventor: MINNESOTA MINING AND MANUFACTURING COMPANY , YOUNGQUIST, Robert, J. , KUTA, Leroy, A. , KELLY, Michael, J. , SWENSON, James, W. , NAFTULYEV, Vladimir , JEWETT, Richard, E. , GERFAST, Sten, R.
IPC: G11B05/78
CPC classification number: G11B15/087 , G11B5/00813 , G11B5/0086 , G11B5/10 , G11B5/127 , G11B5/187 , G11B5/29 , G11B5/588 , G11B5/78 , G11B15/06 , G11B15/4733 , G11B23/30 , G11B23/34 , G11B27/28 , G11B27/36
Abstract: A magnetic tape (10) having a pattern (18) of magnetically polarized stripes (20) recorded thereon. The magnetically polarized stripes are parallel to the length of the tape and are provided on at least one portion (12) of the tape. The stripes are polarized substantially transverse to their length and are recorded to a depth sufficient to ensure that a plurality of data tracks (30) spanning at least a portion of the width of the tape may be recorded over the stripes without significantly altering the magnetic properties of the stripes. The pattern can be used to provide information to a drive, e.g., the type of tape being used, whether the drive has reached the end of the tape, wether the tape is centered, etc. The invention also includes a magnetic head (60, 90) for recording the pattern.
Abstract translation: 具有记录在其上的磁极化条纹(20)的图案(18)的磁带(10)。 磁极化条纹平行于带子的长度并设置在带的至少一部分(12)上。 条纹基本上横向于其长度极化,并且被记录到足以确保跨越条的宽度的至少一部分的多个数据轨道(30)可以被记录在条纹上而不显着改变磁性 的条纹。 该图案可以用于向驱动器提供信息,例如,所使用的带的类型,驱动器是否已经到达带的端部,带的中心等等。本发明还包括磁头(60, 90)用于记录图案。
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6.
公开(公告)号:WO1990012393A1
公开(公告)日:1990-10-18
申请号:PCT/US1989001350
申请日:1989-04-03
Applicant: LIBERMAN, Mikhail
IPC: G11B05/78
Abstract: The object of the present invention is to facilitate the production of master tapes in studios for producing audio and/or video information carriers thereform, by reducing the time and increasing the quality of producing the master tapes. The blank tapes are made first by making a tape web (21) including a support layer and a sensitive layer, winding the tape web (21) on a winding roller (22), unwinding the tape web (21) and cutting it into large diameter tape coils (26) by a cutter (25) and then separating each tape coil (26) by a cutter (27) into individual tapes (27) which are inserted in cassettes. The tape (1, 6, 12) is coded with codes (4, 5, 10, 11, 14, 15) directly during the process of its making, either during the winding on the winding roller (22), or during its unwinding and before cutting by the cutter (25), or before separating by the cutter (27).
Abstract translation: 本发明的目的是通过缩短生产母带的时间和提高质量,便于生产音频和/或视频信息载体的工作室中的主磁带。 通过制造包括支撑层和敏感层的带状网(21),首先制造空白带,将带状网(21)卷绕在卷绕辊(22)上,展开带卷(21)并将其切割成大 通过切割器(25)直径的带状线圈(26),然后通过切割器将每个带状线圈(26)分离成插入盒中的单个带(27)。 在卷绕辊(22)期间或在卷绕辊(22)期间,在制造过程中,直接对代码(4,5,10,11,14,15)进行编码。 并且在切割器(25)切割之前或在通过切割器(27)分离之前。
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