公开(公告)号：WO1994011868A1

公开(公告)日：1994-05-26

申请号：PCT/US1993010639

申请日：1993-11-04

Applicant: FUTURE NETWORK, INC.

Inventor： FUTURE NETWORK, INC. ,  SCHWAB, Barry, H. ,  WASHINO, Kinya

IPC: G11B05/86

CPC classification number: G11B15/70 ,  G11B5/865 ,  G11B15/00 ,  G11B15/60

Abstract: In a high speed magnetic tape duplicating system, a single master tape (21) is wound around a transfer drum (7) rotatable about a fixed axis. Longitudinal sections of two copy tapes (31A and 31B) are preferably urged against different sections of the master tape (21) as it contacts the transfer drum (7) using an air clamp, and bias field magnetic transfer heads (6A and 6B) are used to carry out anhysteretic transfer from the master to the copy tapes. The transfer heads (6A and 6B), mounted on translatable deck plates (5A and 5B), may be retracted away from the transfer drum (7) along with the master and copy tapes to facilitate threading, rewinding, and automatic transfer drum cleaning with a plurality of rollers. The method of the invention includes steps whereby the master tape may be automatically threaded to accommodate both shuttle and bin-loop modes of operation and to detect damage to the master tape and halt further duplicating.

Abstract translation: 在高速磁带复制系统中，单个母带（21）缠绕在可围绕固定轴线旋转的转印鼓（7）周围。 两个复制带（31A和31B）的纵向部分优选地被压靠在主带（21）的不同部分上，因为它们使用空气夹接触转印鼓（7），而偏磁场磁转印头（6A和6B）是 用于进行从主机到复制磁带的不间断传输。 安装在可平移甲板（5A和5B）上的转印头（6A和6B）可以与主复印带一起缩回离开转印鼓（7），以方便螺纹，倒卷和自动转印滚筒清洗 多个辊。 本发明的方法包括以下步骤：母带可以自动地螺纹连接以适应穿梭和双回路操作模式，并且检测对母带的损坏并停止进一步的复制。

公开(公告)号：WO1992008228A1

公开(公告)日：1992-05-14

申请号：PCT/US1991007815

申请日：1991-10-22

Applicant: SONY MUSIC ENTERTAINMENT INC.

Inventor： SONY MUSIC ENTERTAINMENT INC. ,  STEBBINGS, David, W. ,  KADIN, Jeffrey, B.

IPC: G11B05/86

CPC classification number: G11B5/86 ,  G11B27/005 ,  G11B27/028 ,  G11B27/032 ,  G11B27/34 ,  G11B27/36 ,  G11B2220/41 ,  G11B2220/90

Abstract: A method of and apparatus for recording information from a master medium onto a slave medium. In one embodiment, digital information on a master medium is reproduced and stored at a first rate, typically at real time, in a first high speed digital storage device such as a magnetic disk drive. The digital information stored in the first storage device, when needed, is transferred at a second rate, much higher than the first, to a second digital storage device in which it is stored until it is scheduled for duplication, at which time the digital information is repeatedly played back at a third rate, much higher than the first rate and slower than the second rate, and is converted from digital information into analog information and applied to a duplicating device for recording the analog information onto a slave medium. Because the information stored in the first digital storage device is not directly used in production, the duplicating device can be duplicating information previously transferred from the first storage device to the second at the same time information is being reproduced from a master medium and loaded, in real time, into the first storage device.

Abstract translation: 用于将信息从主介质记录到从属介质上的方法和设备。 在一个实施例中，在诸如磁盘驱动器的第一高速数字存储设备中，以主要介质上的数字信息通常以实时的速度再现和存储数字信息。 存储在第一存储装置中的数字信息在需要时以比第一存储装置高的第二速率被传送到其被存储的第二数字存储装置，直到被调度为复制为止，此时数字信息 以比第一速率高得多的第三速率重复播放，并且比第二速率慢，并且从数字信息转换成模拟信息，并将其应用于将模拟信息记录在从属媒体上的复制装置。 由于存储在第一数字存储装置中的信息不直接用于生产，所以复制装置可以将从第一存储装置传送的信息复制到第二存储装置，同时从主媒体正在再现信息并加载， 实时进入第一台存储设备。

公开(公告)号：WO1988001783A2

公开(公告)日：1988-03-10

申请号：PCT/GB1987000608

申请日：1987-08-28

Applicant: TAPE AUTOMATION LTD.

Inventor： TAPE AUTOMATION LTD. ,  GARDNER, John, Phillip

IPC: G11B05/86

CPC classification number: G11B5/86 ,  G11B15/00 ,  G11B15/58 ,  G11B23/113

Abstract: A conventional video recorder has a top plate (2) mounting a tape supply spool (22) and tape take-up spool (22a) upon a common shaft (19). A recording assembly (6) has a conventional video recording drum and combines with a master cassette holder (4) to complete a cassette recording station. A roller system guides the tape from the supply spool (22) through the recording station to the take-up spool (22a). Stepper motors (3) provide rim drive to the spools (22) and (22a) and vacuum troughs (8 and 9) and associated photoelectric devices provide for speed control of the tape transport functions as a whole to ensure that tape is conveyed at a uniform speed without slack.

Abstract translation: 传统的录像机具有在公共轴（19）上安装带供应卷轴（22）和带卷轴（22a）的顶板（2）。 记录组件（6）具有传统的视频记录鼓并且与主盒保持器（4）组合以完成盒式磁带记录站。 辊系统将胶带从供给卷轴（22）引导通过记录站到卷取卷轴（22a）。 步进电机（3）为线轴（22）和（22a）和真空槽（8和9）提供轮辋驱动，并且相关的光电装置提供整体的磁带传送功能的速度控制，以确保磁带在 均匀速度无松动。

公开(公告)号：WO1981000165A1

公开(公告)日：1981-01-22

申请号：PCT/JP1980000153

申请日：1980-07-01

Applicant: TOKYO SHIBAURA DENKI KK ,  SAWAZAKI N

Inventor： TOKYO SHIBAURA DENKI KK

IPC: G11B05/86

CPC classification number: B82Y10/00 ,  G11B5/743 ,  G11B5/865

Abstract: A method of magnetically transferring and recording information signals such as audio or video signals onto a magnetic layer (5) of a magnetic recording medium (4), which method comprises the steps of bringing the surface of the magnetic layer (5) of the magnetic recording medium (4) into contact with the surface of another magnetic layer (2), on which the information signal has been recorded in an uneven mode, of a master recording medium (1), and applying a magnetic field to the master recording medium (1) and the magnetic recording medium (4). In this method, the information signal is capable of being recorded on the magnetic layer (2) of the master recording medium (1) to a highly dense degree in the uneven mode.