Method and apparatus for automatically tracking a magnetic tape
    1.
    发明授权
    Method and apparatus for automatically tracking a magnetic tape 失效
    自动跟踪磁带的方法和装置

    公开(公告)号:US4363042A

    公开(公告)日:1982-12-07

    申请号:US133813

    申请日:1980-03-25

    IPC分类号: G11B5/584 G11B5/588 G11B15/60

    CPC分类号: G11B15/602

    摘要: In a magnetic tape-automatic tracking method, at least one of the positions of the upper and lower edges of a magnetic tape is detected by an assembly of a tape edge position sensor and light-emitting diode. Any displacement of the running magnetic tape from its standard vertical position is determined from detected data. A generally vertical tape edge position-compensating post which applies a tensile force to the magnetic tape in contact therewith is rotated in a vertical plane by a reversible motor in accordance with the detected extent of the displacement of the running magnetic tape from its standard vertical position. The magnitude of a tensile force applied by the tape edge position-compensating post to the magnetic tape is varied, by the extent of the rotation of the reversible motor. As a result, the magnetic tape is vertically moved in the desired direction to regain its standard vertical position.

    摘要翻译: 在磁带自动跟踪方法中,通过带边缘位置传感器和发光二极管的组合来检测磁带的上边缘和下边缘中的至少一个位置。 从检测到的数据确定行驶磁带从其标准垂直位置的任何位移。 根据检测到的运行磁带从其标准垂直位置的位移的程度,通过可逆电动机在竖直平面中向垂直平面中旋转向与其接触的磁带施加拉力的大致垂直的带边缘位置补偿柱 。 通过带边缘位置补偿柱施加到磁带的张力的大小通过可逆电动机的旋转程度而变化。 结果,磁带在期望的方向上垂直移动以重新获得其标准垂直位置。

    Mechanism for preventing loosening of magnetic recording tape of tape
cassette
    3.
    发明授权
    Mechanism for preventing loosening of magnetic recording tape of tape cassette 失效
    防止磁带录放带松动的机构

    公开(公告)号:US4309002A

    公开(公告)日:1982-01-05

    申请号:US137466

    申请日:1980-04-04

    IPC分类号: G11B23/087 G03B1/04 G11B15/32

    CPC分类号: G11B23/08721

    摘要: Within a housing of a tape cassette is mounted a reel hub serving to wind a magnetic recording tape. The reel hub is moved between a first position where one side edge of the tape wound around the reel hub is spaced from a wall of the housing and a second position where the one side edge of the tape abuts against the wall, reel hub being rotated at the first position by a reel shaft of a magnetic recordig tape running apparatus inserted through an opening of the wall of the tape cassette for engagement with the reel hub. Within the housing is also mounted a abutment member. The abutment member is movable between a third position where the abutment member is spaced from the other side edge of the tape wound around the reel hub located in the first position and a fourth position where the abutment member abuts against the other side edge of the tape wound around the reel hub located in the second position by the reel shaft inserted through the opening of the tape cassette housing for engagement with the reel hub. The abutment member is usually urged to the fourth position by a compression coil spring housed in the tape cassette housing.

    摘要翻译: 在磁带盒的壳体内安装有用于卷绕磁记录带的卷轴毂。 卷轴轮毂在第一位置和第二位置之间移动,该第一位置缠绕在卷轴毂上的带的一个侧边缘与壳体的壁间隔开,并且第二位置,其中带的一个侧边缘抵靠壁,卷轴轮毂旋转 在第一位置处,通过磁带录像带运行装置的卷轴轴插入通过磁带盒的壁的开口与卷轴毂接合。 在壳体内还安装有抵接构件。 邻接构件可在第三位置和第四位置之间移动,在第三位置,抵靠构件与缠绕在位于第一位置的卷轴毂的带的另一侧边缘间隔开,第四位置,抵靠构件抵靠带的另一侧边缘 通过插入穿过带盒壳体的开口的卷盘轴绕位于第二位置的卷盘轮毂卷绕以与卷轴毂接合。 抵靠构件通常由容纳在带盒壳体中的压缩螺旋弹簧推动到第四位置。

    Tape cassette drive assembly
    4.
    发明授权
    Tape cassette drive assembly 失效
    磁带盒驱动装置

    公开(公告)号:US4320879A

    公开(公告)日:1982-03-23

    申请号:US136449

    申请日:1980-04-02

    CPC分类号: G11B15/43 G11B23/087

    摘要: A device for stably running a magnetic recording tape of a tape cassette comprises a reel shaft and a motor connected to the reel shaft. The reel shaft and the motor make a running of the magnetic recording tape providing back tension exerted on the magnetic recording tape. Within the housing of the tape cassette, a first lever having one end rotatably fixed to the housing is mounted. A guide roller for guiding the running direction of the tape is rotatably fixed to another end of the first lever. Therefore, the first lever may swing in response to a back tension exerted on the tape. An amount of the swing of the first lever is detected by a second lever which is rotably located out of the housing and selectably engaged with the first lever. The second lever is connected to the detection means which generates an electric signal in accordance with the amount of rotation of the second lever. The electric signal is sent to the electric controlling circuit means electrically connected to the motor. The electric controlling circuit means controls a value of the voltage supplied to the motor in accordance with the electric signal, and stabilize the value of the back tension exerted to the tape via the motor and the reel shaft.

    摘要翻译: 用于稳定地运行磁带盒的磁记录带的装置包括卷轴和连接到卷轴的马达。 卷轴和电动机使磁记录带的运行提供施加在磁记录带上的反向张力。 在带盒的壳体内安装有一个可旋转地固定到壳体的一端的第一杠杆。 用于引导带的运行方向的导辊可旋转地固定到第一杆的另一端。 因此,第一杠杆可以响应于施加在带上的背张力而摆动。 第一杠杆的摆动量由第二杠杆检测,第二杠杆可旋转地位于外壳外并与第一杠杆可选择地接合。 第二杆连接到检测装置,该检测装置根据第二杆的旋转量产生电信号。 电信号被发送到电连接到电动机的电控制电路装置。 电气控制电路装置根据电信号控制提供给电动机的电压的值,并且通过电动机和卷轴来稳定施加到带的背张力的值。

    Magnetic cassette tape record and play apparatus
    5.
    发明授权
    Magnetic cassette tape record and play apparatus 失效
    磁带录音机

    公开(公告)号:US4330802A

    公开(公告)日:1982-05-18

    申请号:US131105

    申请日:1980-03-18

    摘要: A magnetic cassette tape record and play apparatus wherein the magnetic head thereof is fixed, comprises a push member cooperating with an operation button and which is so disposed as to abut against a pad spring received in a tape cassette. When the tape cassette is loaded or ejected in the stop mode, the push member is pressed against the pad spring to deform it against its urging force, thereby locking the cassette tape in a position untouched by the magnetic head. When the operation button is depressed for the recording or reproduction mode, then the push member is removed from the pad spring, thereby causing the pressure pad to be pressed against the magnetic head with the cassette tape disposed between the pressure pad and the magnetic head.

    摘要翻译: 一种其磁头固定的磁带录音和播放装置,包括与操作按钮配合的推动构件,该推动构件被设置为抵靠容纳在盒式磁带中的垫簧。 当盒式磁带在停止模式下装载或弹出时,推动构件被压靠在垫弹簧上,以抵抗其推动力变形,从而将盒带锁定在不受磁头影响的位置。 当为记录或再现模式按下操作按钮时,推动构件从垫弹簧移除,从而使压垫被压靠在磁头上,盒式磁带设置在压力垫和磁头之间。

    Magnetic record tape protective device for a tape cassette
    6.
    发明授权
    Magnetic record tape protective device for a tape cassette 失效
    磁带记录磁带保护装置

    公开(公告)号:US4372504A

    公开(公告)日:1983-02-08

    申请号:US199223

    申请日:1980-10-21

    CPC分类号: G11B23/087 G11B15/67565

    摘要: This invention is for a tape cassette having window for insertion of a magnetic head and a pinch roller formed extending from a peripheral wall of the housing of the tape cassette to one of the holding plates which holds a pair of reel hubs in place. The device according to this invention has a shutter member, and a resilient metal wire housed in the housing. The shutter member has projections which are to be engaged with an engaging member provided on a tape cassette holder member of the magnetic tape transport apparatus. The metal wire urges the shutter member to close a portion of the window formed in the holding plate. When the cassette is loaded into the loading member, the projections engage with the engaging member and the shutter member releases the closing state of the holding plate forming portion of the window against an urging force of the wire. When the cassette is removed from the loading member, the shutter member closes the holding plate forming portion to prevent the tape from being damaged by an external force.

    摘要翻译: 本发明是一种具有用于插入磁头的盒式磁带和从磁带盒的壳体的周壁延伸到其中一个保持板的夹送辊,该保持板将一对卷轴毂保持就位。 根据本发明的装置具有挡板部件和容纳在壳体中的弹性金属丝。 活门构件具有与设置在磁带传送装置的磁带盒保持构件上的接合构件接合的突起。 金属丝促使闸门构件封闭形成在保持板中的窗口的一部分。 当盒被装载到装载构件中时,突起与接合构件接合,并且挡板构件抵抗着线的推动力而释放窗户的保持板形成部分的关闭状态。 当盒从装载构件上移除时,挡板构件封闭保持板形成部分,以防止带被外力损坏。

    Tape cassette
    8.
    发明授权
    Tape cassette 失效
    磁带盒

    公开(公告)号:US4352473A

    公开(公告)日:1982-10-05

    申请号:US199324

    申请日:1980-10-21

    IPC分类号: G11B23/087 G03B1/04 G11B15/32

    CPC分类号: G11B23/08785 G11B23/08757

    摘要: A tape cassette according to this invention comprises at least three guide rollers disposed inside the housing of the tape cassette. The at least three guide rollers define a position of the magnetic recording tape of the tape cassette relative to the housing across the thickness thereof while the tape is travelling from one of two reel hubs held by the housing along a path extending adjacent a front wall of the housing, the front wall having openings for the insertion of a magnetic head and a pinch roller.

    摘要翻译: 根据本发明的带盒包括设置在盒式磁带的壳体内的至少三个导辊。 所述至少三个引导辊限定了磁带盒的磁记录带相对于壳体横跨其厚度的位置,同时磁带沿着由壳体保持的两个卷轴轮毂之一沿着相邻于外壳的前壁延伸的路径行进 壳体,前壁具有用于插入磁头和夹送辊的开口。

    Image forming apparatus, erasing method, and hard disk management method
    9.
    发明授权
    Image forming apparatus, erasing method, and hard disk management method 有权
    图像形成装置,擦除方法和硬盘管理方法

    公开(公告)号:US07509452B2

    公开(公告)日:2009-03-24

    申请号:US10928481

    申请日:2004-08-30

    IPC分类号: G06F12/00

    摘要: An image forming apparatus includes a plurality of erase information each showing whether or not to erase data for each of a plurality of divided areas into which the hard disk is divided, group erase information showing groups grouping the erase information, and erase count information determined based on the group erase information. Based on the erase count information whether or not there is a divided area to erase, the divided area is erased.

    摘要翻译: 图像形成装置包括多个擦除信息,每个擦除信息各自表示是否擦除分割成硬盘的多个分割区域中的每一个的数据,组擦除信息表示分组擦除信息的组和基于确定的擦除计数信息 对组擦除信息。 基于擦除计数信息,是否存在要擦除的划分区域,分割区域被擦除。

    Tape running direction indicator
    10.
    发明授权
    Tape running direction indicator 失效
    磁带运行方向指示器

    公开(公告)号:US4277674A

    公开(公告)日:1981-07-07

    申请号:US936689

    申请日:1978-08-25

    CPC分类号: G11B27/34 G11B15/093

    摘要: A tape running direction indicator is provided with a sensor for producing a sense pulse corresponding to the rotation of a take-up reel, a ring counter clocked by the sense pulse, and a display unit which receives output pulses of the ring counter and includes decimal points arranged side by side for indication of the tape running direction. The output pulses of the ring counter are shifted corresponding to the direction of the tape running. A glint of each decimal point is successively shifted in the direction of the tape running while flashing.

    摘要翻译: 磁带运行方向指示器设置有传感器,用于产生对应于卷取卷轴的旋转的感测脉冲,由感测脉冲计时的环形计数器,以及接收环形计数器的输出脉冲的显示单元,并且包括十进制 并排排列以指示磁带运行方向。 环形计数器的输出脉冲相应于磁带运行方向移位。 每个小数点的闪烁在闪烁的同时在磁带运行的方向上连续移位。