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    METHOD FOR CONTROLLING DATA RECORDING ON MAGNETIC TAPE
    2.
    发明申请
    METHOD FOR CONTROLLING DATA RECORDING ON MAGNETIC TAPE 审中-公开
    用于控制磁带上数据记录的方法

    公开(公告)号：WO1993002410A1

    公开(公告)日：1993-02-04

    申请号：PCT/JP1992000926

    申请日：1992-07-21

    Applicant: FUJITSU LIMITED ,  TAKAI, Nobuyuki ,  HIYAMIZU, Kazufumi

    Inventor： FUJITSU LIMITED

    IPC: G06F03/06

    CPC classification number: G06F3/0601 ,  G06F2003/0698 ,  G11B20/10 ,  G11B20/1205

    Abstract: A method for controlling on magnetic tape the recording of data collected as a physical block comprising a plurality of packets is recorded. When an instruction for reading out the data corresponding to a packet in the physical block is issued from a host unit, the data of the whole of the physical block are read out from the magnetic tape, and stored in a buffer. When a write instruction and data to be recorded are outputted from the host unit at an arbitrary position in the physical block on the magnetic tape, one physical block is reorganized using the data stored in the buffer and the data to be recorded, and this data reorganized as the physical block is recorded on the magnetic tape.

    DATA CARTRIDGE WITH MAGNETIC TAPE MARKERS
    5.
    发明申请
    DATA CARTRIDGE WITH MAGNETIC TAPE MARKERS 审中-公开
    数据盒带磁带标签

    公开(公告)号：WO1996000445A1

    公开(公告)日：1996-01-04

    申请号：PCT/US1995007428

    申请日：1995-06-12

    Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

    Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  HENNEBERGER, Stacy, A. ,  HILL, Christopher, L. ,  MOLSTAD, Richard, W. ,  OLSON, Alan, R. ,  SEEMAN, Steven, R.

    IPC: G11B20/12

    CPC classification number: G11B15/06 ,  G11B5/00817 ,  G11B15/087 ,  G11B20/1205 ,  G11B23/36

    Abstract: The tape in a data cartridge tape has a beginning of tape (BOT) zone adjacent a leading end, a load point (LP) zone adjacent the BOT zone, an end of tape (EOT) zone adjacent a trailing end, an early warning (EW) zone adjacent the EOT zone, and a data recording (DR) zone between the LP and EW zones. Servo tracks extending between the BOT and EOT enable the closed-loop servo operation of a tape deck during the recording of data at data flux transition densities within a predetermined range of flux transition densities. A BOT indicator includes a first type magnetic marker extending throughout the BOT zone and has a BOT flux density. An LP indicator includes a spaced second type magnetic markers on the servo tracks at the border of the LP and DR zones. An EW indicator which is identical to the LP indicator is located on the servo tracks at the border of the DR and EW zones. An EOT indicator includes a first type marker extending throughout the EOT zone and has an EOT flux density. Digitally encoded cartridge information indicators including the spaced second type markers are located in each of the BOT and EOT zones. The BOT and EOT flux densities are different from one another, and sufficiently different from the data flux transition densities to enable the BOT and EOT indicators to be distinguished from the data. The second type markers of the LP and EW and cartridge information indicators are sufficiently different from the servo carrier flux density to enable the indicators to be distinguished from the servo carrier.

    Abstract translation: 数据盒式磁带中的磁带具有与前端相邻的磁带（BOT）区域的开始，邻近BOT区域的加载点（LP）区域，与后端相邻的磁带（EOT）区域的末端，预警（ EW）区域，以及LP和EW区域之间的数据记录（DR）区域。 在BOT和EOT之间延伸的伺服轨道能够在磁通量转换密度的预定范围内的数据通量转换密度记录数据期间实现磁带机的闭环伺服操作。 BOT指示器包括延伸穿过BOT区域并且具有BOT通量密度的第一类型磁性标记。 LP指示器在LP和DR区域的边界处的伺服轨道上包括间隔开的第二类型磁标记。 与LP指示灯相同的EW指示器位于DR和EW区域边界的伺服轨道上。 EOT指示器包括延伸穿过EOT区域并且具有EOT通量密度的第一类型标记。 包括间隔开的第二类型标记的数字编码的盒信息指示器位于BOT和EOT区中的每一个中。 BOT和EOT通量密度彼此不同，与数据通量转换密度充分不同，使BOT和EOT指标能够与数据区别开来。 LP和EW和盒信息指示器的第二类型标记与伺服载波磁通密度充分不同，以使指示符与伺服载体不同。

    MULTIPLE PARTITION TAPE CARTRIDGE DETECTION MEANS
    9.
    发明申请
    MULTIPLE PARTITION TAPE CARTRIDGE DETECTION MEANS 审中-公开
    多功能磁带盒检测手段

    公开(公告)号：WO99019872A1

    公开(公告)日：1999-04-22

    申请号：PCT/US1998/021170

    申请日：1998-10-08

    IPC: G06F3/06 ,  G11B5/78 ,  G11B20/12

    CPC classification number: G06F3/0682 ,  G06F3/0613 ,  G06F3/0632 ,  G11B20/1205

    Abstract: A tape cartridge has a tape detection means embedded therein. The tape detection means comprises a plurality of tape identification holes, preferably in octal 06 arrangement, and a single load point hole located about 30 inches from the nearest set of beginning of tape holes. A method of detecting a tape cartridge with a tape detection means embedded therein comprises the steps of: locating a set of beginning of tapes holes; locating a load point hole that is 30 inches from the nearest set of beginning of tape holes; measuring the length of tape between the load point hole and the beginning of tape holes; if the length of tape is between 28 and 32 inches determining whether tape identification holes in octal 06 arrangement are present; and identifying the tape as a valid tape cartridge if the length of tape is between 28 and 32 inches and tape identification holes in octal 06 arrangement are present. An apparatus for detecting a tape cartridge with a tape detection means embedded therein comprises a tape identification transducer for reading and scanning for the tape detection data and a microprocessor electrically connected to the tape idenfication transducer for responding to signals from the transducer.

    Abstract translation: 磁带盒具有嵌入其中的磁带检测装置。 磁带检测装置包括多个磁带识别孔，优选地为八进制06布置，以及位于离磁带孔最近一组开始约30英寸的单个载荷点孔。 一种用嵌入式磁带检测装置检测带盒的方法包括以下步骤：定位一组磁带孔的开头; 定位距离最近的一组开始磁带孔30英寸的载荷点孔; 测量载荷点孔和带孔开头之间的带长度; 如果磁带的长度在28和32英寸之间，则确定是否存在八进制06排列中的磁带识别孔; 并且如果磁带长度在28和32英寸之间并且存在具有八进制06排列的磁带识别孔，则将磁带识别为有效的磁带盒。 用于检测具有嵌入其中的磁带检测装置的磁带盒的装置包括用于读取和扫描磁带检测数据的磁带识别换能器，以及电连接到磁带识别换能器的微处理器，用于响应来自换能器的信号。

    EQUIPMENT WITH DIGITAL INTERFACE AND METHOD FOR DIGITAL INTERFACING
    10.
    发明申请
    EQUIPMENT WITH DIGITAL INTERFACE AND METHOD FOR DIGITAL INTERFACING 审中-公开
    具有数字接口的设备和用于数字接口的方法

    公开(公告)号：WO98035348A1

    公开(公告)日：1998-08-13

    申请号：PCT/JP1998/000473

    申请日：1998-02-05

    IPC: G11B20/10 ,  G11B20/12 ,  G11B27/032 ,  G11B27/10 ,  G11B27/30 ,  H04L12/40 ,  H04L12/64 ,  H04L29/06 ,  H04N5/765 ,  H04N5/7826 ,  H04N9/804

    CPC classification number: H04L12/40058 ,  G11B20/10 ,  G11B20/12 ,  G11B20/1205 ,  G11B27/032 ,  G11B27/10 ,  G11B27/3027 ,  G11B2220/90 ,  H04L12/40117 ,  H04L29/06 ,  H04L69/08 ,  H04L69/28 ,  H04N5/765 ,  H04N5/78266 ,  H04N9/8042

    Abstract: An equipment and method for allowing synchronous dubbing and tag recording without using a large-capacity buffer memory. A reference signal from a cylinder servo circuit and tape driving servo circuit of a transmitter is converted into an isochronous packet and is outputted to a 1394 cable from a digital interface transmitting circuit. Then, a receiver converts the received isochronous packet back into a reference signal as it was before by means of an isochronous packet converting circuit, and then supplies it to the cylinder servo circuit and tape driving servo circuit. By this method, the transmitter and the receiver are synchronized and thereby synchronous dubbing and tag recording are made available. Signal regeneration by the transmitter and recording by the receiver are conducted at a timing based on the reference signal, and therefore there is no necessity of a buffer memory for time synchronization.

    Abstract translation: 一种允许不使用大容量缓冲存储器的同步复制和标签记录的设备和方法。 来自发送器的气缸伺服电路和带驱动伺服电路的参考信号被转换成同步分组，并从数字接口发送电路输出到1394电缆。 然后，接收机通过同步分组转换电路将接收到的同步分组转换回原来的参考信号，然后将其提供给气缸伺服电路和磁带驱动伺服电路。 通过这种方法，发射机和接收机是同步的，从而可以提供同步转录和标签记录。 由发射机进行的信号再生和接收机的记录在基于参考信号的定时进行，因此不需要用于时间同步的缓冲存储器。

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