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169 条记录 (耗时 0.05 秒)

    Drop-on-demand ink-jet printing head
    32.
    发明授权
    Drop-on-demand ink-jet printing head 失效
    按需喷墨打印头

    公开(公告)号：US5446485A

    公开(公告)日：1995-08-29

    申请号：US922378

    申请日：1992-07-31

    申请人： Minoru Usui ,  Haruhiko Koto ,  Haruo Nakamura ,  Yozo Shimada ,  Tomoaki Abe

    发明人： Minoru Usui ,  Haruhiko Koto ,  Haruo Nakamura ,  Yozo Shimada ,  Tomoaki Abe

    IPC分类号： B41J2/045 ,  B41J2/055 ,  B41J2/14 ,  B41J2/16 ,  G01D15/18

    CPC分类号： B41J2/1623 ,  B41J2/14274 ,  B41J2/14282 ,  B41J2/161 ,  B41J2/1612 ,  B41J2/1614 ,  B41J2/1626 ,  B41J2/1632 ,  B41J2002/14387

    摘要： A drop-on-demand ink-jet printing head provided with an array of a plurality of piezoelectric elements arranged at regular intervals and fixed at their one ends to a base, the other ends of the respective piezoelectric elements being free ends which are disposed in opposition to nozzle respective apertures, the piezoelectric elements being formed by cutting, at predetermined width, a piezoelectric plate obtained by firing a lamination of paste-like piezoelectric material conductive material stacked alternately in layers. Since each piezoelectric element is composed of a thin piezoelectric plate interposed between electrodes, if a voltage of only about 30 V, which is sufficient to drive the thin piezoelectric plate, is applied across the electrodes, it is possible to largely flex the whole of the piezoelectric element. By this transformation, ink between the top end of the piezoelectric element and the nozzle aperture is discharged to the outside as an ink drop. Because the driving voltage required for forming an ink drop is as low as possible, it is possible to simplify a driving circuit, and because of cutting a piezoelectric plate, it is possible to form small-sized piezoelectric elements with the same accuracy as in a process of producing a semiconductor.

    摘要翻译： 一种按需喷墨打印头，其设置有以规则间隔布置的多个压电元件的阵列，并且其一端固定在基座上，各个压电元件的另一端为自由端，其位于 与喷嘴相应的孔相对，压电元件通过以预定的宽度切割通过烧结层叠交替层叠的糊状压电材料导电材料而获得的压电板而形成。 由于每个压电元件由介于电极之间的薄压电板构成，所以如果仅在电极之间施加足以驱动薄压电板的约30V的电压，则可以将整个 压电元件 通过这种变换，压电元件的顶端和喷嘴孔之间的墨水作为墨滴被排放到外部。 由于形成墨滴所需的驱动电压尽可能地低，所以可以简化驱动电路，并且由于切割压电板，所以可以形成小型压电元件，其精度与 制造半导体的工艺。

    Microcomputer with internal DMA
    39.
    发明申请
    Microcomputer with internal DMA 有权
    具有内部DMA的微电脑

    公开(公告)号：US20050216612A1

    公开(公告)日：2005-09-29

    申请号：US11036332

    申请日：2005-01-18

    申请人： Minoru Usui

    发明人： Minoru Usui

    IPC分类号： G06F13/14 ,  G06F13/28 ,  G06F15/78

    CPC分类号： G06F13/28

    摘要： A microcomputer has: a CPU; memory; a direct memory access controller which controls access to the above memory without passing through the CPU; a plurality of peripheral resources, each having prescribed functions corresponding to a given real resource number, and issuing an access request to the direct memory access controller to perform data transfer with the memory; and, a resource conversion unit, which performs signal conversion between the direct memory access controller and the plurality of peripheral resources. A portion of the peripheral resources among the plurality of peripheral resources are associated with logical resource numbers of the direct memory access controller by the resource conversion unit.

    摘要翻译： 微型计算机有：CPU; 记忆; 直接存储器访问控制器，其不经过CPU来控制对上述存储器的访问; 多个外围资源，每个具有与给定的实际资源号相对应的规定功能，并且向所述直接存储器访问控制器发出访问请求以执行与所述存储器的数据传送; 以及资源转换单元，其在直接存储器访问控制器和多个外围资源之间执行信号转换。 多个外围资源中的一部分外围资源与资源转换单元的直接存储器访问控制器的逻辑资源编号相关联。