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    • 5. 发明授权
    • Distance detecting device and a focus control system utilizing the same
    • 距离检测装置和利用其的聚焦控制系统
    • US4329033A
    • 1982-05-11
    • US121690
    • 1980-02-15
    • Makoto MasunagaTakao KinoshitaToshio SakaneTokuichi TsunekawaKazuya HosoeTakashi AmikuraIsao Harigaya
    • Makoto MasunagaTakao KinoshitaToshio SakaneTokuichi TsunekawaKazuya HosoeTakashi AmikuraIsao Harigaya
    • G03B13/36G02B7/28G02B7/30G03B3/10G01C3/08
    • G02B7/28G02B7/30
    • A distance detecting device in which, with respect to an object whose distance is to be detected, the images of a first and a second field following different lines of sight and containing the object and different in range are scanned while, at the same time, continuous M quantized image element data regarding the first field image and continuous N (N>M) quantized image element data regarding the second field image are obtained and the M image element data regarding the first field image are stored in a first circulation type shift register while the first M image element data of the N image element data regarding the second field image are stored in a second circulation type shift register and the remaining N-M image element data are stored in a third shift register, and the comparison between the stored data of the first and second shift registers during one circulation of said stored data and the relative shift of n bits each of the stored data of the second and third shift registers with respect to the stored data of the first shift register are repeatedly effected to thereby detect the distance to the object, characterized in that in the circulation circuit of the first shift register, bypass means is provided for delaying one circulation of the stored data of the first shift register by n bits relative to one circulation of the stored data of the second shift register and the stored data of the first shift register are circulated through the bypass means, whereby for each one circulation of the stored data of the first shift register, the stored data of the second shift register are shifted by n bits each relative to the stored data of the first shift register.
    • 一种距离检测装置,其中,对于要检测距离的物体,扫描不同视线并包含物体并且在不同范围内的第一场和第二场的图像,同时, 获得关于第一场图像和关于第二场图像的连续N(N> M)个量化图像元素数据的连续M量化图像元素数据,并且关于第一场图像的M个图像元素数据被存储在第一循环型移位寄存器 而关于第二场图像的N个图像元素数据的第一M个图像元素数据被存储在第二循环型移位寄存器中,并且剩余的NM图像元素数据被存储在第三移位寄存器中,并且存储的数据 在所述存储的数据的一个循环期间的第一和第二移位寄存器以及第二和第三移位寄存器的每个存储的数据的n位的相对移位 相对于第一移位寄存器的存储数据重复进行,从而检测到对象的距离,其特征在于,在第一移位寄存器的循环电路中,提供旁路装置,用于延迟所存储的数据的一个循环 第一移位寄存器相对于第二移位寄存器的存储数据的一个循环和第一移位寄存器的存储数据的n个位循环通过旁路装置循环,由此对于第一移位寄存器的存储数据的每个循环 ,第二移位寄存器的存储数据相对于第一移位寄存器的存储数据分别移位n位。
    • 6. 发明授权
    • Automatic focusing device which inhibits focusing when a low contrast
scene is sensed
    • 当感测到低对比度场景时,自动对焦装置抑制聚焦
    • US4467187A
    • 1984-08-21
    • US292413
    • 1981-08-13
    • Tokuichi TsunekawaTakashi Amikura
    • Tokuichi TsunekawaTakashi Amikura
    • G02B7/30G03B3/10
    • G02B7/30
    • In an automatic continuous focusing device, two detected images of an object formed by a distance detection optical system with a relative distance therebetween associated with the object distance are scanned, the obtained scanning signals are quantized to generate quantized picture element data, the relative distance between the two detected images is detected on the basis of the quantized picture element data, and an imaging optical system to be focused on the object is controlled according to the detection result. The device also provides for invalidating the control of the imaging optical system when the results of detection of the quantized condition of the scanning signals indicate that the quantized condition of the scanning signals for at least one of the two detected images is not sound or reasonable.
    • 在自动连续聚焦装置中,扫描由距离检测光学系统形成的与物体距离相对的相对距离的物体的两个检测图像,所获得的扫描信号被量化以产生量化的图像元素数据, 基于量化的图像元素数据检测两个检测到的图像,并且根据检测结果来控制要聚焦在对象上的成像光学系统。 当扫描信号的量化条件的检测结果表明两个检测图像中的至少一个的扫描信号的量化条件不健全或合理时,该装置还提供使成像光学系统的控制无效。
    • 7. 发明授权
    • Camera provided with automatic focus detector
    • 相机配有自动对焦检测器
    • US4335942A
    • 1982-06-22
    • US199262
    • 1980-10-21
    • Tokuichi TsunekawaTakashi Amikura
    • Tokuichi TsunekawaTakashi Amikura
    • G02B7/30G03B7/08
    • G02B7/30
    • A camera provided with automatic focus detector is disclosed. The automatic focus detector drives a photographing lens toward the in-focus position by lens driving means in accordance with focus detection signal repeatedly put out from focus detecting means. The present invention is directed to improvement in focusing operation of such camera. Said lens driving means is allowed to drive the photographing lens toward the in-focus position only when the focus detection information signal continues to be constant longer than a predetermined time length. At the same time, the driving state of the photographing lens by said lens driving means is detected and display means is controlled by the detection signal to display the state of focusing now present.
    • 公开了一种配有自动对焦检测器的相机。 自动聚焦检测器根据从聚焦检测装置反复放出的焦点检测信号,通过透镜驱动装置将摄影镜头朝向对焦位置驱动。 本发明旨在改进这种相机的聚焦操作。 只有当焦点检测信息信号持续长于预定时间长度时,允许所述透镜驱动装置将拍摄镜头驱动到对焦位置。 同时,检测由所述透镜驱动装置拍摄的镜头的驱动状态,并且通过检测信号控制显示装置,以显示现在的聚焦状态。
    • 8. 发明授权
    • Distance detecting device and a focus control system utilizing the same
    • 距离检测装置和利用其的聚焦控制系统
    • US4422741A
    • 1983-12-27
    • US343987
    • 1982-01-29
    • Makoto MasunagaTakao KinoshitaToshio SakaneTokuichi TsunekawaKazuya HosoeTakashi AmikuraIsao Harigaya
    • Makoto MasunagaTakao KinoshitaToshio SakaneTokuichi TsunekawaKazuya HosoeTakashi AmikuraIsao Harigaya
    • G03B13/36G02B7/28G02B7/30G03B3/10G01C3/08
    • G02B7/28G02B7/30
    • A distance detecting device in which, with respect to an object whose distance is to be detected, the images of a first and a second field following different lines of sight and containing the object and different in range are scanned while, at the same time, continuous M quantized image element data regarding the first field image and continuous N (N>M) quantized image element data regarding the second field image are obtained and the M image element data regarding the first field image are stored in a first circulation type shift register while the first M image element data of the N image element data regarding the second field image are stored in a second circulation type shift register and the remaining N-M image element data are stored in a third shift register, and the comparison between the stored data of the first and second shift registers during one circulation of said stored data and the relative shift of n bits each of the stored data of the second and third shift registers with respect to the stored data of the first shift register are repeatedly effected to thereby detect the distance to the object, characterized in that in the circulation circuit of the first shift register, bypass means is provided for delaying one circulation of the stored data of the first shift register by n bits relative to one circulation of the stored data of the second shift register and the stored data of the first shift register are circulated through the bypass means, whereby for each one circulation of the stored data of the first shift register, the stored data of the second shift register are shifted by n bits each relative to the stored data of the first shift register.
    • 一种距离检测装置,其中,对于要检测距离的物体,扫描不同视线并包含物体并且在不同范围内的第一场和第二场的图像,同时, 获得关于关于第二场图像的第一场图像和连续M(N> M)个量化图像元素的连续M量化图像元素数据,并且关于第一场图像的M个图像元素数据被存储在第一循环型移位寄存器 而关于第二场图像的N个图像元素数据的第一M个图像元素数据被存储在第二循环型移位寄存器中,并且剩余的NM图像元素数据被存储在第三移位寄存器中,并且存储的数据 在所述存储的数据的一个循环期间的第一和第二移位寄存器以及第二和第三移位寄存器的每个存储的数据的n位的相对移位 相对于第一移位寄存器的存储数据重复进行,从而检测到对象的距离,其特征在于,在第一移位寄存器的循环电路中,提供旁路装置,用于延迟所存储的数据的一个循环 第一移位寄存器相对于第二移位寄存器的存储数据的一个循环和第一移位寄存器的存储数据的n个位循环通过旁路装置循环,由此对于第一移位寄存器的存储数据的每个循环 ,第二移位寄存器的存储数据相对于第一移位寄存器的存储数据分别移位n位。