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131 条记录 (耗时 0.012 秒)

    Tape transport control system
    11.
    发明授权
    Tape transport control system 失效
    胶带运输控制系统

    公开(公告)号：US3565366A

    公开(公告)日：1971-02-23

    申请号：US3565366D

    申请日：1968-11-01

    申请人： EX CELL O CORP

    发明人： CAMPBELL WILLIAM G JR

    IPC分类号： G06K13/26 ,  G11B15/16 ,  G11B15/43 ,  G11B15/46 ,  B65H59/38 ,  B65H63/02 ,  G11B15/32

    CPC分类号： G06K13/26 ,  G11B15/16 ,  G11B15/43 ,  G11B15/46

    摘要： A control circuit for a reel-to-reel tape transport system for controlling the transfer of tape between the reels. The control circuit includes sensing the demand of tape during a tape transfer operation and providing an electrical signal representative of the demand. The demand signal is compared with a feedback signal representative of the speed of the drive for one of the driven reels and providing a control signal corresponding thereto. This control signal is then combined with a reference signal of a preselected frequency to provide a speed control signal that is applied to the drive control to control the speed in accordance with the sensed parameters.

    Moving tape storage unit
    12.
    发明授权
    Moving tape storage unit 失效
    移动胶带存储单元

    公开(公告)号：US3563494A

    公开(公告)日：1971-02-16

    申请号：US3563494D

    申请日：1968-12-23

    申请人： FERRANTI PACKARD LTD

    发明人： HOKKINEN PAUL K

    IPC分类号： G06K13/26 ,  G11B15/43 ,  B65H59/38 ,  G03B1/00

    CPC分类号： G11B15/43 ,  G06K13/26

    摘要： A tape guide frame surrounds a tape supply or takeup spool and is biased in the tape unwinding direction for spool rotation. The frame is designed to store tape to be wound on or wound off the spool, in amounts of tape varying with the movement of the frame in accord with said bias. The movement of the frame may actuate controls for the spool drive to reduce the tape stored.