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    • 12. 发明授权
    • Interleave memory controller with a common access queue
    • 具有公共访问队列的交织内存控制器
    • US5701434A
    • 1997-12-23
    • US405190
    • 1995-03-16
    • Takayuki Nakagawa
    • Takayuki Nakagawa
    • G06F13/16G06F13/00
    • G06F13/1642
    • A computer system is composed of a processor 10, a memory control circuit 70, and interleaved bank memories 41 through 44. The memory control circuit contains random access queue entries 71 through 73 commonly used by all memories 41 through 44. A bypass 80 allows direct bank access without writing memory access requests to the queue entries 71 through 73. Sequence is maintained by the in-bank access sequence assurance circuits 90. Because the queue entries 71 through 73 allow memory control without providing the number of entries in an integral multiple of the number of banks, the entire circuit scale is reduced. All bank busy circuits in the system are integrated on a single LSI to reduce delay, thereby enhancing processing speed. The bypass 80 eliminates queue read/write cycles from data access time, thereby enhancing processing speed.
    • 计算机系统由处理器10,存储器控制电路70和交错存储器41至44组成。存储器控制电路包含由所有存储器41至44共同使用的随机存取队列条目71至73.旁路80允许直接 存储器访问,而不向队列条目71至73写入存储器访问请求。序列由存储体存取序列保证电路90维护。由于队列条目71至73允许存储器控制,而不提供以整数倍的整数倍的条目数 银行数量,整个电路规模缩小。 系统中的所有存储忙碌电路都集成在单个LSI上,以减少延迟,从而提高处理速度。 旁路80消除了数据访问时间的队列读/写周期,从而提高了处理速度。
    • 15. 发明申请
    • WIRE ELECTRIC DISCHARGE MACHINING APPARATUS
    • 电线放电加工设备
    • US20130292506A1
    • 2013-11-07
    • US13980748
    • 2011-05-16
    • Yasuo OnoderaTakayuki Nakagawa
    • Yasuo OnoderaTakayuki Nakagawa
    • B23H7/10
    • B23H7/10B23H7/04
    • A wire electric discharge machining apparatus according to embodiments includes a wire electrode, a wire supplying unit that supplies the wire electrode, a collecting motor that collects the wire electrode at a predetermined speed, a tension motor that controls a tension of the wire electrode between the wire supplying unit and the collecting motor, a speed calculating unit that calculates a traveling speed of the wire electrode at a predetermined time interval, a speed storing unit that stores the traveling speed calculated by the speed calculating unit, a differential speed calculating unit that calculates a differential speed between a current traveling speed output from the speed calculating unit and a past traveling speed stored in the speed storing unit, and a breakage detecting unit that detects breakage of the wire electrode by comparing the differential speed with a predetermined threshold.
    • 根据实施例的线放电加工装置包括线电极,供给线电极的线供给单元,以预定速度收集线电极的收集电动机,控制线电极的张力的张力电动机 线供给单元和收集电动机;速度计算单元,其以预定时间间隔计算线电极的行进速度;速度存储单元,其存储由速度计算单元计算出的行驶速度;差速计算单元,其计算 从速度计算单元输出的当前行驶速度与存储在速度存储单元中的过去行驶速度之间的差速;以及破损检测单元,其通过将差速与预定阈值进行比较来检测线电极的断裂。
    • 18. 发明授权
    • Electrical discharge machining apparatus
    • 放电加工机
    • US06621033B2
    • 2003-09-16
    • US09773559
    • 2001-02-02
    • Tatsushi SatoYoshihito ImaiHidetaka MiyakeTakayuki Nakagawa
    • Tatsushi SatoYoshihito ImaiHidetaka MiyakeTakayuki Nakagawa
    • B23H104
    • B23H1/06B23H1/04Y10T29/4921Y10T428/1216
    • A layered anisotropically conductive element, a resistant element, and a feed element constitute an electrode for discharge machining. The layered anisotropically conductive element includes high conductivity layers and low conductivity layers alternately laminated on each other, the high conductivity layers and the low conductivity layers being made of thin metallic plates coated with an insulating film. The layered anisotropically conductive element has an anisotropic conductivity, in which the conductivity in a direction parallel to the low conductivity layers is much higher than that in a direction perpendicular to the low conductivity layers. The resistant element is connected to one of end surfaces of the layered anisotropically conductive element perpendicular to the layers. The feed element is connected to the resistant element.
    • 层状各向异性导电元件,电阻元件和馈电元件构成用于放电加工的电极。 层状各向异性导电元件包括​​彼此交替层叠的高导电性层和低电导率层,高导电性层和低电导率层由涂覆有绝缘膜的薄金属板制成。 层状各向异性导电元件具有各向异性导电性,其中平行于低电导率层的方向上的导电率远高于垂直于低电导率层的方向上的导电率。 电阻元件连接到垂直于层的层状各向异性导电元件的端面之一。 馈电元件连接到电阻元件。
    • 19. 发明授权
    • Jump control method and apparatus for electric
    • 电动跳转控制方法和装置
    • US06608275B1
    • 2003-08-19
    • US09937384
    • 2001-09-25
    • Takayuki NakagawaYoshihito Imai
    • Takayuki NakagawaYoshihito Imai
    • B23H718
    • B23H7/18B23H1/02
    • An electric discharge machining device including an interelectrode servo control unit for controlling an interelectrode distance between an electrode and an object while applying a voltage across the electrode and the object, and a jump control unit for controlling a jump operation in which the interelectrode distance is temporarily increased at time intervals or in response to a machining state jump control unit includes a jump locus generation unit for generating a smooth command locus having a frequency component in a frequency range. The jump control unit controls the jump operation by using a smooth command locus generated by the jump locus generation unit.
    • 一种放电加工装置,包括用于在电极和物体之间施加电压的同时控制电极与物体之间的电极间距离的电极间伺服控制单元,以及跳转控制单元,用于控制电极间距离临时的跳跃操作 在加工状态跳跃控制单元中增加的跳跃轨迹生成单元包括用于生成频率范围内的频率成分的平滑指令轨迹的跳跃轨迹生成单元。 跳跃控制单元通过使用由跳跃轨迹生成单元生成的平滑命令轨迹来控制跳跃操作。