Arithmetic unit capable of performing concurrent operations for high
speed operation
    111.
    发明授权
    Arithmetic unit capable of performing concurrent operations for high speed operation 失效
    算术单元能够执行高速运行的并发操作

    公开(公告)号:US5623435A

    公开(公告)日:1997-04-22

    申请号:US371998

    申请日:1995-01-12

    摘要: An arithmetic unit which accepts two numerical values and executes an operation by the use of the two numerical values; has an adder-subtracter for executing an addition or a subtraction on the basis of two numerical values obtained directly or indirectly from the accepted two numerical values; a normalizer for executing a normalizing process in which a mantissa part of an added or subtracted result is shifted so that a high-order digit having been developed anew in the result may come to a predetermined position, and in which an exponent part of the result is corrected in accordance with the number of shift places in the shift of the mantissa part; and a rounding device for executing a rounding process in which, on condition that the mantissa part of the added or subtracted result exceeds a predetermined number of digits, the number of digits of the mantissa part is reduced in conformity with a rounding mode designated beforehand. The rounding device executes at least part of the rounding process by the use of the numerical values not yet subjected to the normalizing process, in parallel with the execution of the adder-subtracter or the normalizer.

    摘要翻译: 一个算术单元,接受两个数值,并通过使用两个数值执行一个操作; 具有用于基于从接受的两个数值直接或间接获得的两个数值来执行加法或减法的加法器 - 减法器; 用于执行归一化处理的归一化器,其中相加或相减结果的尾数部分被移位,使得在结果中重新显现的高阶数字可以到达预定位置,并且其中结果的指数部分 根据尾数部分的偏移位置的数量进行校正; 以及用于执行舍入处理的舍入装置,其中,在相加或相减结果的尾数部分超过预定数量的数字的条件下,尾数部分的位数根据预先指定的舍入模式而减少。 舍入装置与加法器 - 减法器或归一化器的执行并行,通过使用尚未进行归一化处理的数值来执行舍入处理的至少一部分。

    Beam recording apparatus with intensity control
    113.
    发明授权
    Beam recording apparatus with intensity control 失效
    具有强度控制的光束记录装置

    公开(公告)号:US5412408A

    公开(公告)日:1995-05-02

    申请号:US64745

    申请日:1993-05-21

    CPC分类号: G06K15/1209 G06K15/1223

    摘要: An image recording apparatus records an image on a recording medium by scanning a spot light beam in accordance with image information. The apparatus has a storage device for storing the image information corresponding in amount to at least three sub-scan lines, and a light intensity controller for increasing and decreasing the intensity the light beam in accordance with the contents of the storage device relative to a standard intensity. A light beam of the standard intensity satisfies a relation of 1.8.ltoreq.d/p where d represents a light beam diameter (defined as the diameter at which the light beam intensity lowers to 1/e.sup.2 (e: base of the natural logarithms) of the intensity at the light beam center, and p represents an interval between respective scan lines.

    摘要翻译: 图像记录装置根据图像信息通过扫描点光束将图像记录在记录介质上。 该装置具有用于存储对应于至少三个副扫描线的图像信息的存储装置,以及用于根据存储装置的内容相对于标准增加和减小光束强度的光强度控制器 强度。 标准强度的光束满足1.8

    Acoustic surface wave device
    116.
    发明授权
    Acoustic surface wave device 失效
    声表面波装置

    公开(公告)号:US4322651A

    公开(公告)日:1982-03-30

    申请号:US900742

    申请日:1978-04-27

    摘要: An acoustic surface wave device comprises transducers including interdigital electrodes formed on the surface of a piezoelectric material substrate of ceramic such as PZT, or a single crystal of such as LiNbO.sub.3 or a piezoelectric thin film of such as ZnO, wherein an electrical signal is converted into an acoustic surface wave and vice versa. The interdigital electrodes have been changed of the overlapping lengths of the adjacent electrode fingers that are overlapped with each other in accordance with a weighting function determined by a desired pass characteristic. A portion of the transducer region where an undesired acoustic surface wave is propagated, i.e. the portion outside of the envelope of the interdigital electrodes determined by the weighting function, is provided with an acoustic surface wave absorbing material such as silicon rubber. In a certain example, dummy electrodes may be provided between the electrode fingers of the interdigital electrodes.

    摘要翻译: 声表面波装置包括形成在诸如PZT的陶瓷的压电材料基板的表面上的叉指电极或诸如LiNbO 3的单晶或诸如ZnO的压电薄膜的换能器,其中电信号被转换成 声表面波,反之亦然。 根据由期望的通过特性确定的加权函数,叉指电极已经相互重叠的相邻电极指的重叠长度被改变。 传播不希望的声表面波的换能器区域的一部分,即由加权函数确定的叉指电极的外壳外部的部分设置有声表面波吸收材料,例如硅橡胶。 在一定的例子中,可以在叉指电极的电极指之间设置虚拟电极。

    Radiation detection apparatus
    117.
    发明授权
    Radiation detection apparatus 失效
    辐射检测装置

    公开(公告)号:US4317037A

    公开(公告)日:1982-02-23

    申请号:US047133

    申请日:1979-06-11

    IPC分类号: G01T1/20

    CPC分类号: G01T1/20

    摘要: In radiation detection apparatus apparatus having a plurality of radiation detector each comprising a scintillator which emits light in response to a radiation, and a photodetector which detects an emission intensity of the scintillator; radiation detection apparatus characterized in that the scintillator is made of a layer of phosphor particles, so that the performances of the respective detectors are substantially identical.

    摘要翻译: 在具有多个辐射检测器的放射线检测设备装置中,每个辐射检测器包括响应于辐射而发光的闪烁体,以及检测闪烁体发射强度的光电检测器; 其特征在于,闪烁体由荧光体粒子层构成,各检测器的性能基本相同。