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    • 4. 发明授权
    • Invoking externally assisted calls from an isolated environment
    • 从孤立的环境调用外部辅助呼叫
    • US07934063B2
    • 2011-04-26
    • US11693406
    • 2007-03-29
    • Masana MuraseWilfred E. Plouffe, Jr.Masaharu SakamotoKanna ShimizuVladimir Zbarsky
    • Masana MuraseWilfred E. Plouffe, Jr.Masaharu SakamotoKanna ShimizuVladimir Zbarsky
    • G06F13/28
    • G06F9/544
    • A method of invoking power processor element (PPE) serviced C library functions on a synergistic processing element (SPE) running in isolated mode. When the SPE initiates a PPE-serviced function, an SPE stub routine allocates a parameter buffer in an open area of a local store (LS) memory within the SPE. The LS memory includes an open area accessible to the PPE, and an isolated area inaccessible to the PPE. The SPE stub routine copies function parameters corresponding to the PPE-serviced function to a buffer within the open area of the LS memory, and writes a message word, which contains an identification variable of the PPE-serviced function and a location variable of the function parameters, to the open area. When execution is temporarily suspended on the SPE, the PPE reads the message word from the open area of the LS memory and executes the PPE-serviced function.
    • 一种在隔离模式下运行的协同处理元件(SPE)上调用功率处理器元件(PPE)服务C库函数的方法。 当SPE启动PPE服务功能时,SPE stub例程在SPE内的本地存储(LS)存储器的打开区域中分配参数缓冲区。 LS存储器包括PPE可访问的开放区域和PPE无法访问的隔离区域。 SPE存根例程将对应于PPE服务功能的功能参数复制到LS存储器的开放区域内的缓冲区,并写入一个消息字,其中包含PPE服务功能的标识变量和功能的位置变量 参数,到开放区域。 当执行暂停在SPE上时,PPE从LS存储器的打开区域读取消息字,并执行PPE服务功能。
    • 8. 发明授权
    • Microprocessor controlled focussing servo acquisition
    • 微处理器控制聚焦伺服采集
    • US4683560A
    • 1987-07-28
    • US561631
    • 1983-12-15
    • Toyoaki TakeuchiKen OhshimaHideyuki KenjyoYoshiaki IkedaMasaharu Sakamoto
    • Toyoaki TakeuchiKen OhshimaHideyuki KenjyoYoshiaki IkedaMasaharu Sakamoto
    • G02B7/28G11B7/085G11B7/095
    • G11B7/085
    • In an auto-focussing system, an actuator which moves together with an objective lens is vertically movable against a rotating optical disc and radiates a light beam so as to form a light spot on an information plane of the disc. A focus servo unit moves the actuator so that an optical distance between the actuator and the disc is within a proper distance region and performs the focus control of the light spot on the disc. While the actuator is approaching the optical disc, an auto-focus/focus servo controller initially makes the servo unit nonoperative and, when the actuator reaches a too-far position in a suitable servo loop distance region specified by a servo loop of the focus servo unit, the controller temporarily stops the movement of the actuator and then moves the actuator again from the too-far position by only a predetermined distance, thereby causing the actuator to be located within the focus loop distance region.
    • 在自动聚焦系统中,与物镜一起移动的致动器可以相对于旋转的光盘上下移动并且辐射光束,以在光盘的信息平面上形成光点。 聚焦伺服单元使致动器移动,使得致动器和盘之间的光学距离在适当的距离区域内,并执行光盘上的光点的聚焦控制。 当致动器接近光盘时,自动对焦/聚焦伺服控制器最初使得伺服单元不起作用,并且当致动器在由聚焦伺服的伺服环路指定的合适的伺服环路距离区域中达到太远位置时 控制器暂时停止致动器的移动,然后使致动器再次从太远位置移动预定距离,从而使致动器位于聚焦环距离区域内。
    • 10. 发明授权
    • System for checking defects on a flat surface of an object
    • 用于检查物体平坦表面上的缺陷的系统
    • US4508450A
    • 1985-04-02
    • US362621
    • 1982-03-29
    • Ken OhshimaMasaharu Sakamoto
    • Ken OhshimaMasaharu Sakamoto
    • G01N21/88G01N21/95G11B7/0037
    • G01N21/9506G11B7/00375G01N2021/8861G01N2021/8874G01N21/9501G01N2201/1045
    • A checking system for checking defects on an optically flat surface of an object to be checked is adapted to spirally scan the surface of the object with a laser beam which is projected from an optical head. The laser beam is reflected from the surface of the object and converted by a photodetector to an electric signal. The level of the electric signal is compared with a reference level to produce a defect signal. The rotation of the object is detected by a position sensor. A counter counts a position signal in response to the defect signal and the contents of the counter is stored, as data representing a defect start position, in a defect position memory. The length data of the defect signal is counted and stored in a defect length memory. Predetermined defect position data is read out of a defect position memory, while defect length data corresponding to the defect position data is read out of the defect length memory. Position data associated with an area to be displayed is compared with defect position data. When both data coincide with each other, the corresponding defect length data is counted down. During the down count period, defect picture element data is stored in a refresh memory. The picture element data stored in the refresh memory is delivered to a CRT where it is displayed as defect data.
    • 用于检查待检查物体的光学平坦表面上的缺陷的检查系统适于用从光学头投影的激光束螺旋地扫描物体的表面。 激光束从物体的表面反射并由光电检测器转换成电信号。 将电信号的电平与参考电平进行比较以产生缺陷信号。 物体的旋转由位置传感器检测。 计数器响应于缺陷信号对位置信号进行计数,并且将计数器的内容作为表示缺陷开始位置的数据存储在缺陷位置存储器中。 将缺陷信号的长度数据计数并存储在缺陷长度存储器中。 从缺陷位置存储器中读出预定缺陷位置数据,同时从缺陷位置数据读出与缺陷位置数据对应的缺陷长度数据。 与要显示的区域相关联的位置数据与缺陷位置数据进行比较。 当两个数据彼此一致时,相应的缺陷长度数据被倒计数。 在向下计数期间,将缺陷像素数据存储在刷新存储器中。 存储在刷新存储器中的图像元素数据被传送到CRT,其被显示为缺陷数据。