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1. 发明授权

US4969045A Image sensing apparatus having automatic iris function of automatically adjusting exposure in response to video signal 失效
标题翻译：具有自动光圈功能的图像感测装置，其响应于视频信号自动调节曝光
公开(公告)号：US4969045A
公开(公告)日：1990-11-06
申请号：US354303
申请日：1989-05-19
申请人： Toshinobu Haruki , Kenichi Kikuchi , Masao Takuma
发明人： Toshinobu Haruki , Kenichi Kikuchi , Masao Takuma
IPC分类号： H04N5/235
CPC分类号： H04N5/2351
摘要： In a video camera having an automatic iris function and a gamma correcting function, an object evaluating value is calculated based on an exposure evaluating value in a sampling area designated as a priority area, a target luminance level for exposure control is changed according to the relation between this object evaluating value and exposure evaluating values in sampling areas other than the sampling area selected as the priority area, a ratio with which the priority area is weighted in calculating the object evaluating value is changed, and a correction value for gamma correction is further changed. As a result, overexposure and underexposure in a picture are decreased. Furthermore, if an extremely small value is included in exposure evaluating values in sampling areas, the value is previously replaced with a predetermined fixed value, so that the effect of noises or the like on exposure adjustment is decreased.

2. 发明授权

US5003339A Image sensing apparatus having automatic focusing function for automatically matching focus in response to video signal 失效
标题翻译：具有自动对焦功能的图像感测装置，用于响应视频信号自动匹配焦点
公开(公告)号：US5003339A
公开(公告)日：1991-03-26
申请号：US481745
申请日：1990-02-14
申请人： Kenichi Kikuchi , Masao Takuma , Toshinobu Haruki
发明人： Kenichi Kikuchi , Masao Takuma , Toshinobu Haruki
IPC分类号： H04N5/232
CPC分类号： H04N5/23212
摘要： In a video camera having an automatic focusing function, a first sampling area in the center of an image sensed picture and a second sampling area around the first sampling area are set. Considering a case in which an auto-focus operation is carried out selecting the first sampling area as a focusing area, when the difference between the newest focus evaluating value and the maximum focus evaluating value becomes one-eighth or more of the maximum focus evaluating value, the second sampling area is selected as the focusing area, to carry out an auto-focus operation. Consequently, an auto-focus operation conforming to the state of an object is carried out. In addition, a priority area for exposure control is selected following selection of the focusing area. Thus, exposure relative to a main object is always maintained most suitably. Furthermore, even if the focus evaluating value has no distinct peak, the erroneous detection of the in-focus position can be prevented since the sampling area having a larger maximum value per unit area is selected as a focusing area.

3. 发明授权

US4967280A Image sensing apparatus having automatic focusing function of automatically matching focus in response to video signal 失效
标题翻译：具有自动聚焦功能的图像感测装置，其响应于视频信号自动匹配焦点
公开(公告)号：US4967280A
公开(公告)日：1990-10-30
申请号：US478061
申请日：1990-02-07
申请人： Masao Takuma , Toshinobu Haruki , Kenichi Kikuchi
发明人： Masao Takuma , Toshinobu Haruki , Kenichi Kikuchi
IPC分类号： H04N5/232
CPC分类号： H04N5/23212
摘要： In a video camera having an automatic focusing function, a focus evaluating value is calculated as the sum of first and second focus evaluating values extracted using output of two filters having different cut-off frequencies, and a relative ratio of the first and second focus evaluating value is also calculated. This relative ratio is compared with a predetermined reference value. Considering a case in which the focus evaluating value is below this reference value after an object is brought into focus, even if the focus evaluating value does not change, an auto-focus operation is resumed. On the other hand, considering a case in which the relative ratio is above the reference value, even if the focus evaluating value changes, the auto-focus operation is not resumed. In addition, even if the focus evaluating value reaches a maximum in the auto-focus operation, the auto-focus operation is not terminated if the relative ratio does not reach a predetermined reference value. Furthermore, the amount of slight movement of a lens in an object change confirming operation after bringing the object into focus is switched depending on the relative ratio. Additionally, it is determined whether or not the lens correctly moves toward an in-focus position by determining the increase or decrease of the relative ratio.

4. 发明授权

US4922346A Automatic focusing apparatus having a variable focusing speed and particularly suited for use with interlaced scanning 失效
标题翻译：自动对焦装置具有可变的聚焦速度，并且特别适用于隔行扫描
公开(公告)号：US4922346A
公开(公告)日：1990-05-01
申请号：US211434
申请日：1988-06-24
申请人： Masaru Hidaka , Hirotsugu Murashima , Masao Takuma , Toshinobu Haruki , Kenichi Kikuchi
发明人： Masaru Hidaka , Hirotsugu Murashima , Masao Takuma , Toshinobu Haruki , Kenichi Kikuchi
IPC分类号： H04N5/232
CPC分类号： H04N5/23212
摘要： In an automatic focusing apparatus of a video camera, a first focus evaluating value which steeply changes and a second focus evaluating value which gently changes relative to the position of a lens, are detected in response to a video signal obtained in an image sensing circuit (4). A switching circuit (19) alternately selects the first and second focus evaluating values every one field to apply the same to in-focus state detecting circuits (20, 21), respectively. The in-focus state detecting circuits (20, 21), together with a focusing motor control circuit (10), perform an automatic focusing operation by hill-climbing control. In addition, a calculating circuit (22) calculates the relative ratio of the first focus evaluating value to the second focus evaluating value. The focusing motor control circuit (10) sets the rotational speed of a focusing motor (3) to a normal speed when the calculated relative ratio is smaller than a predetermined value while setting the rotational speed of the focusing motor (3) to a low speed when it is larger than the predetermined value. Therefore, a lens (1) is moved at low speed when the focusing lens is in the vicinity of the in-focus position while being moved at high speed when it is in the defocused state.
摘要翻译：在摄像机的自动聚焦装置中，响应于在图像感测电路中获得的视频信号来检测相对于镜头的位置而急剧变化的第一焦点评估值和温和变化的第二焦点评估值 4）。开关电路（19）每隔一场交替地选择第一和第二焦点评估值，以将其分别应用于对焦状态检测电路（20,21）。聚焦状态检测电路（20,21）与聚焦电机控制电路（10）一起通过爬山控制进行自动聚焦操作。此外，计算电路（22）计算第一焦点评价值与第二焦点评价值的相对比。聚焦电动机控制电路（10）在将聚焦电动机（3）的转速设定为低速时，将计算出的相对比例小于规定值，将聚焦电动机（3）的转速设定为正常速度当它大于预定值时。因此，当聚焦透镜在处于散焦状态的同时高速移动时，在聚焦位置附近，透镜（1）以低速移动。

5. 发明授权

US5111301A Automatic exposure adjusting apparatus for automatically adjusting exposure by fuzzy inference 失效
标题翻译：自动曝光自动调节装置，用于自动调节受FUZZY INFERENCE曝光
公开(公告)号：US5111301A
公开(公告)日：1992-05-05
申请号：US544669
申请日：1990-06-26
申请人： Toshinobu Haruki , Kenichi Kikuchi
发明人： Toshinobu Haruki , Kenichi Kikuchi
IPC分类号： H04N5/235
CPC分类号： H04N5/2351 , Y10S706/90
摘要： An automatic exposure adjusting apparatus for use in a video camera automatically adjusts exposure based on a video signal obtained from an image sensing circuit. The automatic exposure adjusting apparatus detects a luminance signal level of the video signal and detects a first mean value which is a simple mean value per unit area of an image sensed picture. The automatic exposure adjusting apparatus also outputs a second mean value weighted every area in accordance with a luminance distribution in the image sensed picture. The automatic exposure adjusting apparatus controls the adjustment of exposure based on the first and second mean values. Such weighting of the luminance level in accordance with the luminance distribution is carried out based on the fuzzy inference.

6. 发明授权

US5555022A White balance adjusting apparatus for automatically adjusting white balance in response to color information signal obtained from image sensing device 失效
标题翻译：白平衡调节装置，用于响应于从图像感测装置得到的彩色信息信号自动调整白平衡
公开(公告)号：US5555022A
公开(公告)日：1996-09-10
申请号：US454835
申请日：1995-05-31
申请人： Toshinobu Haruki , Kenichi Kikuchi
发明人： Toshinobu Haruki , Kenichi Kikuchi
IPC分类号： H04N9/73 , H04N9/23
CPC分类号： H04N9/735
摘要： Sixty-four regions are established on an image sensed picture from a video camera, where evaluating value r.sub.ij, b.sub.ij, and y.sub.ij is obtained by averaging color difference signals R-Y and B-Y and luminance signal Y obtained from an image sensing signal for over 1 field period for each region. When the apparatus determines that the difference in the evaluating values between two adjacent regions does not exceed a predetermined value, that is, when that continuing regions have the same color, the weighing amount of the color evaluating values of a corresponding region is adjusted to limit its effect upon the gain control signals used to adjust the gain of the color signal amplifiers. As a result, the effect of objects of the same color towards white balance adjustment is reduced.
摘要翻译：在来自摄像机的图像感测图像上建立六十四个区域，其中评估值rij，bij和yij是通过平均色差信号RY和BY以及从图像感测信号获得的亮度信号Y获得超过1场周期为每个地区。当设备确定两个相邻区域之间的评估值的差异不超过预定值时，即当该连续区域具有相同的颜色时，相应区域的颜色评估值的称量量被调整为限制其对用于调节彩色信号放大器的增益的增益控制信号的影响。结果，降低了相同颜色的物体对白平衡调节的影响。

7. 发明授权

US5319462A Automatic focusing apparatus for automatically adjusting focus in response to video signal by fuzzy inference 失效
标题翻译：自动聚焦装置，用于通过模糊推理自动调整对视频信号的聚焦
公开(公告)号：US5319462A
公开(公告)日：1994-06-07
申请号：US928533
申请日：1992-08-13
申请人： Toshinobu Haruki , Kenichi Kikuchi
发明人： Toshinobu Haruki , Kenichi Kikuchi
IPC分类号： H04N5/232
CPC分类号： H04N5/23212
摘要： An automatic focusing apparatus of a video camera automatically matches a focus in response to a video signal obtained from an image sensing circuit. The automatic focusing apparatus detects the level of a high frequency component of the video signal in order to supply a focus evaluating value which takes a maximum value in an in-focus position. A focusing motor controlling circuit performs an automatic focusing operation by a hill-climbing servo system based on the supplied focus evaluating value. A determination is made by employing a fuzzy inference with respect to the initialization of the direction of movement of a lens when the automatic focusing operation starts, the selection of a focusing area from a plurality of areas, and the reactivation of the automatic focusing operation due to a change of an object after once the automatic focusing operation is completed.
摘要翻译：视频摄像机的自动聚焦装置响应于从图像感测电路获得的视频信号自动匹配焦点。自动聚焦装置检测视频信号的高频分量的电平，以便提供在焦点位置上取最大值的焦点评估值。聚焦电机控制电路基于所提供的焦点评估值，通过爬山伺服系统执行自动对焦操作。当自动聚焦操作开始时，通过采用关于透镜的移动方向的初始化的模糊推理，从多个区域选择聚焦区域以及重新激活自动对焦操作一旦完成了自动对焦操作，就改变了对象。

8. 发明授权

US5282022A White balance adjusting apparatus for automatically adjusting white balance in response to luminance information signal and color information signal obtained from image sensing device 失效
标题翻译：用于响应于从图像感测装置获得的亮度信息信号和颜色信息信号自动调整白平衡的白平衡调节装置
公开(公告)号：US5282022A
公开(公告)日：1994-01-25
申请号：US612836
申请日：1990-11-13
申请人： Toshinobu Haruki , Kenichi Kikuchi
发明人： Toshinobu Haruki , Kenichi Kikuchi
IPC分类号： H04N9/73
CPC分类号： H04N9/735
摘要： Sixty-four regions are established on an image sensed picture from a video camera, where each evaluating value r.sub.ij, b.sub.ij, and y.sub.ij is obtained by averaging color difference signals R-Y and B-Y and luminance signal Y obtained from an image sensed signal over 1 field period for each region. When determination is made that luminance evaluating value y.sub.ij out of these evaluating values exceeds a predetermined value, the color evaluating values of the corresponding region are attenuated by a predetermined amount, in response to gain control signals derived from the color difference signals. As a result, the effect of an object of high luminance towards white balance adjustment is reduced.
摘要翻译：在来自摄像机的图像感测图像上建立了六十四个区域，其中通过平均色差信号RY和BY和从1场周期的图像感测信号获得的亮度信号Y来获得每个评估值rij，bij和yij 为每个地区。当确定这些评估值中的亮度评估值yij超过预定值时，响应于从色差信号导出的增益控制信号，相应区域的颜色评估值被衰减预定量。结果，降低了高亮度物体对白平衡调整的影响。

9. 发明授权

US5442408A White balance adjusting apparatus for automatically adjusting white balance in response to luminance information signal and color information signal obtained from image sensing device 失效
标题翻译：用于响应于从图像感测装置获得的亮度信息信号和颜色信息信号自动调整白平衡的白平衡调节装置
公开(公告)号：US5442408A
公开(公告)日：1995-08-15
申请号：US612831
申请日：1990-11-13
申请人： Toshinobu Haruki , Kenichi Kikuchi
发明人： Toshinobu Haruki , Kenichi Kikuchi
IPC分类号： H04N9/73 , H04N9/64
CPC分类号： H04N9/735
摘要： Sixty-Four regions are established on an image sensed picture from a video camera, where evaluating value r.sub.ij, b.sub.ij, and y.sub.ij is obtained by averaging color difference signals R-Y and B-Y and luminance signal Y obtained from an image sensing signal for over 1 field period for each region. When the apparatus determines that the difference in the evaluating values between two adjacent regions do not exceed a predetermined value, that is, when that adjacent regions have the same color, the weighing amount of the color evaluating values of a corresponding region is adjusted to limit its effect upon the gain control signals used to adjust the gain of the color signal amplifiers. As a result, the effect of objects of the same color towards white balance adjustment is reduced.
摘要翻译：在来自摄像机的图像感测图像上建立六十四个区域，其中评估值rij，bij和yij是通过平均色差信号RY和BY和从图像感测信号获得的亮度信号Y获得超过1场周期为每个地区。当设备确定两个相邻区域之间的评估值的差异不超过预定值时，即当相邻区域具有相同的颜色时，相应区域的颜色评估值的称量量被调整为限制其对用于调节彩色信号放大器的增益的增益控制信号的影响。结果，降低了相同颜色的物体对白平衡调节的影响。

10. 发明授权

US5489939A White balance adjusting apparatus for automatically adjusting white balance in response to a color information signal obtained from an image sensing device 失效
标题翻译：用于响应于从图像感测装置获得的颜色信息信号自动调整白平衡的白平衡调节装置
公开(公告)号：US5489939A
公开(公告)日：1996-02-06
申请号：US360987
申请日：1994-12-20
申请人： Toshinobu Haruki , Kenichi Kikuchi
发明人： Toshinobu Haruki , Kenichi Kikuchi
IPC分类号： H04N9/73 , H04N9/64
CPC分类号： H04N9/735
摘要： Sixty-four regions are established on an image sensed picture from a video camera, where evaluating value r.sub.ij, b.sub.ij, and y.sub.ij is obtained by averaging color difference signals R-Y and B-Y and luminance signal Y obtained from an image sensing signal for over 1 field period for each region. When the apparatus determines that the difference in the evaluating values between two adjacent regions do not exceed a predetermined value, that is, when that continuing regions have the same color, the weighing amount of the color evaluating values of a corresponding region is adjusted to limit its effect upon the gain control signals used to adjust the gain of the color signal amplifiers. As a result, the effect of objects of the same color towards white balance adjustment is reduced.
摘要翻译：在来自摄像机的图像感测图像上建立六十四个区域，其中评估值rij，bij和yij是通过平均色差信号RY和BY以及从图像感测信号获得的亮度信号Y获得超过1场周期为每个地区。当设备确定两个相邻区域之间的评估值的差异不超过预定值时，即当该连续区域具有相同的颜色时，相应区域的颜色评估值的称量量被调整为限制其对用于调节彩色信号放大器的增益的增益控制信号的影响。结果，降低了相同颜色的物体对白平衡调节的影响。

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