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    • 72. 发明授权
    • Tractor units for push-pull printer
    • 拖拉机用拖拉机
    • US4953997A
    • 1990-09-04
    • US348110
    • 1989-05-02
    • Kazumi HasegawaHiroshi IkedaWataru Ito
    • Kazumi HasegawaHiroshi IkedaWataru Ito
    • B41J15/04B41J11/26B41J11/28B65H20/20
    • B41J11/28
    • A push-pull printer includes at least one tractor unit thus is formed to have both a pull function and a push function. Fork-like mounting portions are respectively formed at lower portions of a pair of frames provided at both ends of the tractor unit. A pair of tractor guides are located at each of push and pull feed positions of the printer body. Each guide detachably holds a corresponding fork-like mounting portion. When the tractor is to be used in the push type paper feed mode, the fork-like mounting portions are attached to the tractor guides located at the push feed position. However, for use in the pull type paper feed mode, the fork-like mounting portions are attached to the tractor guides located at the pull feed position. Two such tractors, one providing the pull function and the other the push function, can be used cooperatively.
    • 推拉式打印机包括至少一个拖拉机单元,因此形成为具有拉动功能和推动功能。 叉形安装部分分别形成在设置在牵引车单元的两端的一对框架的下部。 一对拖拉机导向件位于打印机主体的每个推拉进给位置。 各引导件可拆卸地保持相应的叉形安装部分。 当拖拉机用于推送式进纸模式时,叉形安装部分附接到位于推送进给位置的拖拉机导向件。 然而,为了在拉式给纸模式中使用,叉形安装部分附接到位于拉入位置的拖拉机导向件。 可以协同使用两台这样的拖拉机,一个提供牵引功能,另一个是推动功能。
    • 74. 发明授权
    • Ultrasonic imaging apparatus and method of forming an ultrasonic image
of an object
    • 超声波成像装置和形成物体的超声波图像的方法
    • US4793184A
    • 1988-12-27
    • US898518
    • 1986-08-21
    • Hiroshi IkedaKageyoshi KatakuraToshio OgawaShin'ichiro UmemuraShinichi Kondo
    • Hiroshi IkedaKageyoshi KatakuraToshio OgawaShin'ichiro UmemuraShinichi Kondo
    • G01S7/52G01S15/89G01N29/04
    • G01S7/52046G01S15/8918G01S7/52085
    • An ultrasonic imaging apparatus and method of forming an image of an acoustic image of an object employing the aperture synthesis technique, in which at least one partial aperture for accommodating a predetermined number of successive transducers is established and applied to a transducer array to select the predetermined number of successive transducers accommodated in the partial aperture so that the selected transducers serve to transmit ultrasonic acoustic signals to an object and receive signals reflected from the object, and the at least one partial aperture is specifically moved along the arrayed transducers for similar signal transmission to and/or signal reception from the object, whereby the apparatus and the method do not suffer substantial noise caused during changeover between transmitting and receiving operation modes and/or enjoy and enlarged aperture for signal transmission or enlarged aperture for signal reception with a suppressed decrease of the frame rate.
    • 一种使用孔径合成技术形成对象的声像的图像的超声波成像装置和方法,其中建立用于容纳预定数量的连续换能器的至少一个部分孔径并将其应用于换能器阵列以选择预定的 容纳在部分孔径中的连续换能器的数量,使得所选择的换能器用于向对象发射超声波信号并接收从物体反射的信号,并且至少一个部分孔径被特别地沿着阵列换能器移动以用于类似的信号传输 和/或来自对象的信号接收,由此该装置和方法不会在发送和接收操作模式之间切换期间产生实质的噪声和/或用于信号传输的享受和扩大的孔径或用于信号接收的扩大的孔径, 帧速率。