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    • 33. 发明申请
    • Schedulability determination method and real-time system
    • 可调度确定方法和实时系统
    • US20060218558A1
    • 2006-09-28
    • US11233176
    • 2005-09-23
    • Osamu ToriiSeiji Maeda
    • Osamu ToriiSeiji Maeda
    • G06F9/46
    • G06F9/4887
    • A real-time system includes a plurality of processors for executing jobs of a plurality of periodic tasks each having predetermined period, assigns each job in a period of each of the tasks to the processors, calculates distribution of execution times during which jobs assigned are executed on the processors, determines, based on the distribution, whether each of the jobs finishes by a deadline within the period, determines that scheduling is impossible, when one of the jobs is determined not to finish by the deadline, determines whether the distribution of the execution times of the jobs each determined to finish by the deadline converge, and determines that scheduling is possible, when the distribution converge.
    • 实时系统包括用于执行多个周期性任务的多个处理器,每个任务具有预定周期,在每个任务的周期中将每个作业分配给处理器,计算分配执行作业的执行时间的分布 在处理器上,根据分配确定每个作业是否在期限内完成的期限,确定调度是不可能的,当其中一个作业被确定为不在期限内完成时,确定是否分配 每个决定完成的作业的执行时间在截止日期之前收敛,并且当分布收敛时确定调度是可能的。
    • 40. 发明授权
    • Retractable pen with internal tip seating
    • 伸缩笔,内部有针脚座
    • US4115015A
    • 1978-09-19
    • US786743
    • 1977-04-11
    • Osamu Torii
    • Osamu Torii
    • B43K7/12B43K24/08B43K5/16
    • B43K7/12B43K24/08B43K5/005B43K7/005B43K8/003
    • A retractable pen includes a slide cylinder (1) axially coupled to a push tube (17) and slidably but non-rotatably disposed in a surrounding body cylinder (25) and biased toward a retracted position therein by an internal spring (24). The front end of the slide cylinder defines an axially offset open hole (3) and an internal blind hole (3'), and a refill cartridge (8) having an axially offset writing tip (9) and a support tube 11 axially coupled to the cartridge are disposed within the slide cylinder/push tube unit and rotatably but non-slidably coupled to the body cylinder. A grooved cam wall (5) and axially spaced cam ring (16) on the inner surface of the slide cylinder cooperate with cam followers (13) on the outer surface of the support tube, whereby the depression and release of the push tube sequentially effects the extension of the slide cylinder, the 180.degree. rotation of the cartridge and tip, and the retraction of the slide cylinder, to thus transfer the tip between a writing position whereat it extends through the slide cylinder open hole and a retracted position whereat it is protectively seated in the internal blind hole. The cam wall is configured as two elongated slots spaced 180.degree. apart and joined by convex oblique edges, the cam ring edge defines a zig-zag surface matched to but spaced from and slightly rotationally offset from the cam wall oblique edges, and the cam followers are trapezoidal in shape.
    • 可伸缩笔包括轴向联接到推管(17)并且可滑动但不可旋转地设置在周围主体缸(25)中的滑动缸(1),并通过内部弹簧(24)朝向其缩回位置偏压。 滑动缸的前端限定了轴向偏置的开孔(3)和内部盲孔(3'),以及具有轴向偏置的书写尖端(9)和支撑管11的再填充筒(8) 盒被布置在滑动筒/推动管单元内并且可旋转地但不可滑动地联接到主体筒。 在滑动缸的内表面上的带凹槽的凸轮壁(5)和轴向隔开的凸轮环(16)与支撑管的外表面上的凸轮从动件(13)配合,由此推动管的按压和释放顺序地 滑动架的延伸,盒和尖端的180度旋转以及滑动缸的缩回,从而将尖端传送到其延伸穿过滑动缸开放孔的书写位置和在其之间的缩回位置 保护性地坐在内部盲孔中。 凸轮壁被构造成两个间隔开180°的细长狭缝,并通过凸形的倾斜边缘连接,凸轮环边缘限定了一个与凸轮壁倾斜边缘匹配但与凸轮壁倾斜边缘相隔但与之稍微旋转偏移的锯齿形表面,以及凸轮从动件 是梯形的形状。