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    • 3. 发明授权
    • Apparatus for detecting two-dimensional pattern and method for
transforming the pattern into binary image
    • 用于检测二维图案的装置和将图案转换成二进制图像的方法
    • US4506382A
    • 1985-03-19
    • US370781
    • 1982-04-21
    • Kazunari HadaNorio FujiiAtsushi KawaharaToru AzumaJunji Hazama
    • Kazunari HadaNorio FujiiAtsushi KawaharaToru AzumaJunji Hazama
    • G06K9/56G06T5/00G06T5/30H04N1/409H04N5/21
    • G06K9/56
    • Two-dimensional pattern detecting apparatus provided with register for serially receiving binary signals obtained from analog signals of a two-dimensional pattern and adapted to divide the pattern into pixels and to represent the density of bright and dark for pixels by the binary signals. The apparatus further includes a processing circuit adapted to compare with predetermined patterns a pattern composed of 8 peripheral pixels of a partial area of 3.times.3 pixels within the two-dimensional pattern, on the basis of the binary signals stored in the register. The processing circuit outputs a binary signal of a logic value stored in said register corresponding to a central pixel of the partial area when the pattern of the 8 pixels coincides with one of said predetermined patterns, and to outputs a binary signal of a logic value prevailing in 8 binary signals stored in the register corresponding to the 8 pixels when the pattern of the 8 pixels does not coincide with any of the predetermined patterns.
    • 二维图案检测装置设置有用于串行接收从二维图案的模拟信号获得的二进制信号的寄存器,并且适于将图案划分为像素并且通过二进制信号表示像素的亮和暗的密度。 该装置还包括处理电路,其适于根据存储在寄存器中的二进制信号,与二维图案中的3×3像素的部分区域的8个周边像素组成的图案与预定图案进行比较。 当8个像素的图案与所述预定图案中的一个一致时,处理电路输出存储在所述寄存器中的对应于该部分区域的中心像素的逻辑值的二进制信号,并输出主要的逻辑值的二进制信号 当8像素的图案与任何预定图案不一致时,存储在对应于8个像素的寄存器中的8个二进制信号。
    • 4. 发明授权
    • Apparatus for detecting defects in pattern
    • 用于检测图案中的缺陷的装置
    • US4589139A
    • 1986-05-13
    • US462515
    • 1983-01-31
    • Kazunari HadaNorio FujiiToru AzumaKaoru KikuchiJunji Hazama
    • Kazunari HadaNorio FujiiToru AzumaKaoru KikuchiJunji Hazama
    • G01R31/308G06T7/00G06K9/46
    • G06T7/0006G01R31/308G06T2207/20144G06T2207/30148
    • An apparatus for inspecting a pattern consisting of light and dark areas formed on a planar test specimen according to design information, comprising: an imaging device for viewing the pattern to generate image information; a detector for generating a first signal upon detection that, in response to the image information, a boundary line between the light and dark areas of the pattern is bent in a determined stepping form in the direction of the plane; a memory for generating and storing a second signal, upon detection that the boundary line of the pattern has a bend of stepping form according to the design information, corresponding to the position in the imaging area of the bend in the design information; and an inspecting device for discriminating, upon generation of the first signal, the presence or absence of the second signal in the memory corresponding to the position of the first signal in the image area.
    • 一种用于根据设计信息检查由平面测试样本上形成的由浅色和暗色区域组成的图案的设备,包括:用于观看图案以生成图像信息的成像装置; 检测器,用于在检测到时产生第一信号,响应于图像信息,图案的亮区和暗区之间的边界线以确定的步进形式沿平面的方向弯曲; 用于产生和存储第二信号的存储器,当检测到所述图案的边界线根据所述设计信息具有与所述设计信息中的所述弯曲部的所述成像区域中的位置相对应的步进形式的弯曲时; 以及检测装置,用于在产生第一信号时,在对应于图像区域中的第一信号的位置的存储器中存在或不存在第二信号。