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    • 4. 发明授权
    • Joint structure composed of flexible tubing and a handling apparatus
comprising such a joint structures
    • 由柔性管构成的接头结构和包括这种接头结构的处理装置
    • US5137013A
    • 1992-08-11
    • US721111
    • 1991-06-26
    • Toshihiko ChibaMichihiko OkuzumiTsuneo Kaziwara
    • Toshihiko ChibaMichihiko OkuzumiTsuneo Kaziwara
    • G02B23/24A61B1/00A61B10/06A61B17/28A61M25/00F16F1/04
    • A61B17/29F16F1/04A61M25/0054
    • The joint structure of the present invention includes a flexible tube constructed of a coil-wound metal wire element and of another member. This other member includes 1) a main joint joining the end of the outer peripheral surface of the flexible tube to the end of the other member by laser welding either part or all of the main joint; and 2) spot welds joining together adjacent turns of the coil in the vicinity of the main joint by irradiating a laser beam onto a plurality of separate spots extending over the adjacent turns. A handling device for use in endoscopes having such a structure and a similar structure, in which the other member is also a flexible tube either softer or harder than the above flexible tube, is also discussed. Adjacent turns of the coil in the vicinity of each of the welded joints are laser spot-welded at a number of spots, thereby strengthening the thermally affected regions during the laser welding of the joints and increasing the rigidity of the region. This compensates for the lowering of the elastic limit in the vicinity of the welded joints, thereby preventing plastic deformation or buckling in the flexible tubes in the thermally affected regions under a strong bending force.
    • 本发明的接合结构包括由线圈缠绕金属线元件和另一构件构成的柔性管。 该另一个构件包括1)通过激光焊接主接头的一部分或全部而将柔性管的外周表面的端部连接到另一构件的端部的主接头; 以及2)通过将激光束照射到在相邻匝上延伸的多个分开的点上,将主接头附近的线圈的相邻匝连接在一起的点焊。 还讨论了具有这种结构和类似结构的内窥镜的处理装置,其中另一个构件也是比上述柔性管更软或更硬的柔性管。 在每个焊接接头附近的线圈的相邻匝在多个点处被激光点焊,从而在接头的激光焊接期间加强受热影响的区域并增加该区域的刚性。 这补偿了焊接接头附近的弹性极限的降低,从而在强的弯曲力下防止热影响区域中的柔性管中的塑性变形或屈曲。
    • 6. 发明授权
    • Data signal reading device
    • 数据信号读取装置
    • US4617677A
    • 1986-10-14
    • US696554
    • 1985-01-30
    • Toshihiko Chiba
    • Toshihiko Chiba
    • H03K5/1252H04L1/20H04L25/49H04Q9/14H04Q9/16H04L1/00
    • H04L25/4902H04L1/20
    • A data signal reading device for reading an input data signal, such as may be received from an infrared remote control device, wherein the amount of error contained in the output signal is reduced. The input signal is subjected to level decision while being sampled with a clock pulse signal having a predetermined period to provide decision outputs. A first counter counts the number of occurrences of one level and responds to the decision output, while a second counter counts the number of occurrences of the other level. The second counter is initialized when it is determined that the decision output is of the one level. The counting operations of the first and second counters are suspended for a period of time slightly longer than the shorter of the two different durations when the content of the second counter reaches a predetermined value. The output state is determined according to the content of the first counter present when the second counter reaches the predetermined value.
    • 一种用于读取诸如可以从红外遥控装置接收的输入数据信号的数据信号读取装置,其中包含在输出信号中的误差量减小。 在用具有预定周期的时钟脉冲信号进行采样的同时对输入信号进行电平判定以提供判定输出。 第一个计数器对一个级别的出现次数进行计数,并对决策输出进行响应,而第二个计数器对其他级别的出现次数进行计数。 当确定判定输出为一级时,第二计数器被初始化。 当第二计数器的内容达到预定值时,第一计数器和第二计数器的计数操作被暂停比两个不同持续时间中较短的时间稍长的时间段。 当第二计数器达到预定值时,根据当前存在的第一计数器的内容来确定输出状态。