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    • 7. 发明申请
    • EDGE DETECTION METHOD
    • 边缘检测方法
    • US20100027032A1
    • 2010-02-04
    • US12510591
    • 2009-07-28
    • Masayuki DohiItsuko SakaiTakayuki SakaiShunji KikuchiTakuto InoueAkihiro HoriMasayuki Narita
    • Masayuki DohiItsuko SakaiTakayuki SakaiShunji KikuchiTakuto InoueAkihiro HoriMasayuki Narita
    • G01B11/00
    • G01B11/028H01L21/67259
    • An edge detection method includes preparing a transparent substrate which includes a first main face having a first main region and a first peripheral region and a second main face having a second main region and a second peripheral region, the first peripheral region having an inclination angle of θa1 and the second peripheral region having an inclination angle of θa2, causing measuring light to enter the first peripheral region from a direction perpendicular to the first main region, detecting a non-emitting region where the measuring light is not emitted from the second peripheral region, and detecting an edge of the transparent substrate on the basis of the non-emitting region, wherein if a refractive index of the transparent substrate is n, the inclination angles θa1 and θa2 satisfy the following expression: n×sin(θa1+θa2−arcsin(sin θa1/n))≧1
    • 边缘检测方法包括制备透明基板,其包括具有第一主区域和第一周边区域的第一主面和具有第二主区域和第二周边区域的第二主面,所述第一周边区域具有倾斜角 θa1和第二外围区域具有θa2的倾斜角度,使得测量光从垂直于第一主区域的方向进入第一周边区域,检测测量光不从第二周边区域发射的不发射区域 ,并且基于所述不发射区域检测所述透明基板的边缘,其中如果所述透明基板的折射率为n,则所述倾斜角度θa1和θa2满足以下表达式:nxsin(θa1+θa2-arcsin( sinθa1/ n))> = 1
    • 9. 发明授权
    • Method for converting progressive scan signals and converter thereof
    • 用于转换逐行扫描信号的方法及其转换器
    • US5666166A
    • 1997-09-09
    • US577905
    • 1995-12-04
    • Akihiro Hori
    • Akihiro Hori
    • H04N9/64H04N11/04H04N11/20H04N7/01
    • H04N11/04H04N11/20H04N9/64
    • A converter comprising an input terminal 1 for receiving a chrominance signal of 4:2:2P format progressive scan signal, a low pass filter 2 for passing low frequency component contained in the chrominance signal input to the input terminal 1, high pass filter 3 for passing high frequency component contained in the chrominance signal input to the input terminal 1, a detection means 4 for detecting the high frequency component level of the chrominance signal filtered with the high pass filter 3, a sub-sampling means 6 for sub-sampling the chrominance signal and converting the sub-sampled signal into a chrominance signal of 4:2:2P format progressive scan signal and a switch 5 for connecting the low pass filter 2 and the sub-sampling means 6 to input the low pass filtered chrominance signal to the sub-sampling means 6 when the high frequency component level is detected to be a predetermined level or higher, and for connecting the input terminal 1 and the sub-sampling means 6 to input the chrominance signal input to the input terminal 1 to the sub-sampling means 6 when the high frequency component level is detected to be lower than the predetermined level.
    • A转换器,包括用于接收4:2:2P格式逐行扫描信号的色度信号的输入端子1,用于使包含在输入到输入端子1的色度信号中的低频分量通过的低通滤波器2,用于 将包含在输入端1的色度信号中的高频分量传送到检测装置4,用于检测由高通滤波器3滤波的色度信号的高频分量电平;子采样装置6, 将副采样信号转换为4:2:2P格式的逐行扫描信号的色度信号和用于连接低通滤波器2和子采样装置6的开关5,以将低通滤波色度信号输入到 当检测到高频分量电平为预定电平或更高电平时的子采样装置6,并且用于连接输入端子1和子采样装置6以输入c 当检测到高频分量电平低于预定电平时,输入端子1向子采样装置6输入的高电平信号。