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    • 2. 发明授权
    • Pixel defect correction apparatus
    • 像素缺陷校正装置
    • US4701784A
    • 1987-10-20
    • US829135
    • 1986-01-31
    • Hiroki MatsuokaAtsushi MorimuraYoshinori Kitamura
    • Hiroki MatsuokaAtsushi MorimuraYoshinori Kitamura
    • H04N5/367H04N3/14
    • H04N5/367
    • A defect correction apparatus includes a memory having information of image failure of a solid state imaging device, a coincidence detection circuit for detecting a position of pixel having a failure at the time of image pick up, and a failure correction circuit. The failure correction circuit includes structure for producing plural signals for correction of signals of pixels around the pixel having the failure, and structure for selecting an optimum one from the produced plural signals, for correction responding to condition of the image and signals of the pixel therearound, and to use the selected optimum signal for correction by switching for the signal of the failure pixel.
    • PCT No.PCT / JP85 / 00300 Sec。 371日期1986年1月31日 102(e)日期1986年1月31日PCT提交1985年5月30日PCT公布。 公开号WO85 / 05752 日期:1985年12月19日。缺陷修正装置包括具有固态成像装置的图像故障信息的存储器,用于检测图像拾取时具有故障的像素的位置的重合检测电路和故障 校正电路。 故障校正电路包括用于产生用于校正具有故障的像素周围的像素的信号的多个信号的结构,以及用于从所产生的多个信号中选择最佳像素的结构,用于根据图像的条件和其周围的像素的信号进行校正 并且通过切换故障像素的信号来使用所选择的最佳信号进行校正。
    • 9. 发明授权
    • Catalyst deterioration determining apparatus for internal combustion engine, and control method for the apparatus
    • 内燃机用催化剂劣化判定装置及其装置的控制方法
    • US06349540B1
    • 2002-02-26
    • US09664389
    • 2000-09-18
    • Shigeki NakayamaHiroki MatsuokaKohei IgarashiHiroshi Suwahara
    • Shigeki NakayamaHiroki MatsuokaKohei IgarashiHiroshi Suwahara
    • F01N300
    • F01N11/007F01N2550/02Y02T10/22Y02T10/47
    • A three-way catalyst device having an oxygen absorbing/releasing capability is provided in an exhaust passage of an internal combustion engine. An upstream-side air-fuel ratio sensor that outputs an output value in accordance with the air-fuel ratio of exhaust gas is provided in the exhaust passage upstream of the three-way catalyst device. A downstream-side air-fuel ratio sensor that outputs an output value in accordance with the air-fuel ratio of exhaust gas is provided in the exhaust passage downstream of the three-way catalyst device. A comparison value is calculated by comparing the length of an output locus formed by output values of the upstream-side air-fuel ratio sensor and the length of an output locus formed by output values of the downstream-side air-fuel ratio sensor. By comparing the comparison value with a predetermined criterion, it is determined whether the three-way catalyst device has deteriorated. At least one of the downstream-side air-fuel ratio sensor output value and the predetermined criterion is corrected in accordance with the downstream-side air-fuel ratio sensor output value. Therefore, deterioration of the three-way catalyst device can be determined with high precision.
    • 具有氧吸收/释放能力的三元催化剂装置设置在内燃机的排气通道中。 在三通催化剂装置的上游的排气通道中设置有根据排气的空燃比输出输出值的上游侧空燃比传感器。 在三通催化剂装置下游的排气通道中设置有输出与废气的空燃比相对应的输出值的下游侧空燃比传感器。 通过比较由上游侧空燃比传感器的输出值形成的输出轨迹的长度与由下游侧空燃比传感器的输出值形成的输出轨迹的长度的比较来计算比较值。 通过将比较值与预定标准进行比较,确定三元催化剂装置是否劣化。 根据下游侧空燃比传感器输出值来校正下游侧空燃比传感器输出值和预定标准中的至少一个。 因此,可以高精度地确定三元催化剂装置的劣化。