Ink recording apparatus provided with shutter
    11.
    发明授权
    Ink recording apparatus provided with shutter 失效
    油墨记录仪提供快门

    公开(公告)号:US5072241A

    公开(公告)日:1991-12-10

    申请号:US579325

    申请日:1990-09-10

    IPC分类号: B41J2/175 B41J2/135 B41J2/16

    摘要: An ink recording apparatus used with printers or the like and manufactured by applying semiconductor device manufacturing techniques. One wall of an ink chamber is formed of a single-crystal substrate and an ink jet port is formed by etching on the single-crystal substrate. A shutter and electrodes composed of polycrystalline-silicon film are formed on the single-crystal substrate by film forming in the LPCVD method and patterning through plasma etching. A front wall is formed by coating the shutter and electrodes further with a polycrystalline-silicon film. The shutter is movable between the wall surface of the ink chamber and the front wall, being driven through electrostatic attracting force produced between voltage-applied electrodes and the shutter. The electrodes are formed at positions corresponding to those where the shutter blocks the ink jet port and releases the same.

    摘要翻译: 一种与打印机等一起使用并通过应用半导体器件制造技术制造的墨水记录装置。 墨水室的一个壁由单晶基板形成,并且通过在单晶基板上进行蚀刻形成喷墨口。 在LPCVD方法中通过成膜形成快门和由多晶硅膜构成的电极,并通过等离子体蚀刻进行图案化。 通过用多晶硅膜进一步涂覆快门和电极来形成前壁。 快门可以在墨室的壁表面和前壁之间移动,通过在施加电压的电极和快门之间产生的静电吸引力驱动。 电极形成在对应于快门阻挡喷墨口并将其释放的位置处的位置处。

    Method and apparatus for recording and reproducing a plurality of bits
on a magnetic tape
    13.
    发明授权
    Method and apparatus for recording and reproducing a plurality of bits on a magnetic tape 失效
    用于在磁带上记录和再现多个位的方法和装置

    公开(公告)号:US4302783A

    公开(公告)日:1981-11-24

    申请号:US100344

    申请日:1979-12-05

    摘要: At least one bit of a digital signal including a plurality of bits to be simultaneously recorded on a plurality of tracks of a magnetic tape, is recorded on at least two tracks located at opposite sides with respect to a reference track. The reference track carries a reference signal utilized for producing a synchronous signal with which the plurality of bits are reproduced in synchronization. When reproducing, a.c. signals derived from the two corresponding tracks having the simultaneously recorded bits are added to each other whereby the phase difference of the plurality of bits with respect to the reference signal is compensated while drop out phenomenon is reduced.

    摘要翻译: 包括要同时记录在磁带的多个轨道上的多个位的数字信号的至少一位被记录在相对于参考轨道位于相对侧的至少两个磁道上。 参考轨道携带用于产生同步信号的参考信号,同步信号同步地再现多个位。 再现时, 从具有同时记录的比特的两个对应轨道导出的信号彼此相加,从而相对于参考信号的多个比特的相位差被补偿,同时丢弃现象减少。