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1. 发明授权

US06320977B1 Method and apparatus for positional detection using pattern matching process 失效
标题翻译：使用模式匹配处理的位置检测方法和装置
公开(公告)号：US06320977B1
公开(公告)日：2001-11-20
申请号：US08962842
申请日：1997-11-03
申请人： Nobufumi Tokura
发明人： Nobufumi Tokura
IPC分类号： G06K968
CPC分类号： G06K9/6202
摘要： A first signal represents an image of an object to be inspected. Portions of the first signal are selected as second signals respectively. The second signals represent partial images of the inspected-object image respectively. The partial images are of a given size. The second signals are compared with a third signal representing a predetermined reference image of a size equal to the size of the partial images, and thereby pattern matching is executed between the partial images and the reference image. Calculation is made as to scores of the pattern matching between the partial images and the reference image. A maximum score is selected from among the calculated scores. A fourth signal is generated which represents a position of the partial image corresponding to the maximum score. The partial-image position is defined as being relative to the inspected-object image. An invalid area of the reference image is determined according to a fifth signal representing a predetermined unreliable image area. A part of the third signal, which corresponds to the invalid area of the reference image, is excluded from the pattern matching.
摘要翻译：第一信号表示待检查对象的图像。第一信号的部分被分别选择为第二信号。第二信号分别表示检查对象图像的部分图像。部分图像具有给定的尺寸。将第二信号与表示尺寸等于部分图像的尺寸的预定参考图像的第三信号进行比较，从而在部分图像和参考图像之间执行图案匹配。对部分图像和参考图像之间的图案匹配的分数进行计算。从计算得分中选出最大分数。产生代表对应于最大分数的部分图像的位置的第四信号。部分图像位置被定义为相对于被检查对象图像。根据表示预定的不可靠图像区域的第五信号来确定参考图像的无效区域。从图案匹配中排除对应于参考图像的无效区域的第三信号的一部分。

2. 发明授权

US5495424A Method and apparatus for inspecting solder portions 失效
标题翻译：用于检查焊料部分的方法和装置
公开(公告)号：US5495424A
公开(公告)日：1996-02-27
申请号：US200960
申请日：1994-02-24
申请人： Nobufumi Tokura
发明人： Nobufumi Tokura
IPC分类号： G01N21/956 , G06F17/00
CPC分类号： G01N21/95684
摘要： A solder portion is inspected as follows. An image of the solder portion is obtained. The image of the solder portion is collated with a plurality of predetermined reference patterns corresponding to different solder portion types respectively. A type of the solder portion is identified in response to a result of the collation. A decision is made as to whether the solder portion is satisfactory or unsatisfactory in response to the identified type thereof.
摘要翻译：焊接部分如下进行检查。获得焊料部分的图像。焊料部分的图像分别与对应于不同焊料部分类型的多个预定参考图案进行整理。响应于核对的结果识别出一种类型的焊料部分。做出关于焊料部分是否满足或不满足其所识别的类型的决定。

3. 发明授权

US5293324A Method and apparatus for inspecting solder portions using fuzzy inference 失效
标题翻译：使用模糊推理检查焊料部分的方法和装置
公开(公告)号：US5293324A
公开(公告)日：1994-03-08
申请号：US867643
申请日：1992-04-13
申请人： Nobufumi Tokura
发明人： Nobufumi Tokura
IPC分类号： G01B11/24 , G01N21/88 , G01N21/956 , G06T1/00 , G06T7/00 , H04N7/18 , H05K3/34 , G06F15/62
CPC分类号： G06T7/0004 , G01N21/95684 , G06T2207/20076 , G06T2207/30152
摘要： An image of the solder portion is taken. Values of goodness/poorness judgment factors are calculated from the image of the solder portion. Grades of the goodness/poorness judgment factors are calculated from the values of the goodness/poorness judgment factors and from predetermined membership functions of the goodness/poorness judgment factors according to predetermined rules each having a condition part related to the goodness/poorness judgment factors and a conclusion part related to a goodness degree. Partial figures are calculated from predetermined membership functions of the goodness degree and from the calculated grades of the goodness/poorness judgment factors. The partial figures are combined into a final figure. A position of a centroid of the final figure is calculated. A decision is made as to whether or not the solder portion is good on the basis of the calculated position of the centroid with respect to a predetermined judgment scale.
摘要翻译：拍摄焊料部分的图像。根据焊料部分的图像计算出良好/不良判定因子的值。善/劣判定因子的等级根据善/劣判定因子的值和根据具有与善/劣判断因子有关的条件部分的规定规则的善/劣判定因子的规定隶属度函数计算，一个与善良程度有关的结论部分。部分数字是根据善意程度的预定隶属函数和善/劣判断因子的计算等级计算的。部分数字组合成最终数字。计算最终数字的质心位置。根据所计算出的重心位置相对于预定的判断标度，判断焊料部分是否良好。

4. 发明授权

US5206705A Method of checking external shape of solder portion 失效
标题翻译：检查焊接部分外形的方法
公开(公告)号：US5206705A
公开(公告)日：1993-04-27
申请号：US623499
申请日：1990-12-07
申请人： Nobufumi Tokura
发明人： Nobufumi Tokura
IPC分类号： G01B11/24 , B23K31/12 , G01N21/88 , G01N21/93 , G01N21/956 , H05K3/34 , H05K13/08
CPC分类号： B23K31/12 , H05K13/08
摘要： The upper-limit height of a solder portion based on the thickness of a lead or a chip is set, and the maximum height of the solder portion measured with a laser beam is compared with the set upper-limit height, thereby to judge the acceptance or rejection of the shape of the solder portion. In addition, the lower-limit height of a solder portion based on the thickness of a lead or a chip is set, and the maximum height of the solder portion measured with a laser beam is compared with the set lower-limit height, thereby to judge the acceptance or rejection of the shape of the solder portion. Besides, the lower-limit wetting angle of a solder fillet is set, and the wetting angle of the solder fillet measured with a laser beam is compared with the set lower-limit wetting angle, thereby to judge the acceptance or rejection of the shape of the solder fillet.

5. 发明授权

US4175693A Method for enhancing the reliability of output data from a label reader 失效
标题翻译：提高标签读取器输出数据可靠性的方法
公开(公告)号：US4175693A
公开(公告)日：1979-11-27
申请号：US891219
申请日：1978-03-29
申请人： Sadao Nakanishi , Kazuhiro Suzuki , Nobufumi Tokura , Shinichiro Endo
发明人： Sadao Nakanishi , Kazuhiro Suzuki , Nobufumi Tokura , Shinichiro Endo
IPC分类号： G06K7/00 , G06K5/00 , G06K7/10 , G06K7/14 , G06K9/13
CPC分类号： G06K7/10861 , G06K5/00
摘要： A method for enhancing the reliability of output data from a label reader adapted to read a bar code consisting of a plurality of bars. Each bar in the bar code is scanned at a plurality of points and sets of binary symbols representative of the scanned points along each bar are obtained. Two sums are then formed for each bar, the first being the number of binary "1"s in the set and the second being the number of binary "0"s in the set, and the ratio of two sums is computed. If the ratio is larger than (1+.alpha.) for .alpha.>0, then the data corresponding to the numerator sum is regarded as reliable. If the ratio is less than (1-.beta.) for 0
摘要翻译：一种用于增强从适合于读取由多个条形组成的条形码的标签读取器的输出数据的可靠性的方法。在多个点处扫描条形码中的每个条，并且获得表示沿着每个条的扫描点的二进制符号的集合。然后为每个条形成两个和，第一个是集合中二进制“1”的数量，第二个是集合中二进制“0”的数量，并且计算两个和的比率。如果α> 0的比例大于（1 +α），则与分子和相对应的数据被认为是可靠的。如果0 <β<1的比率小于（1-β），那么对应于分母和的数据被认为是可靠的。如果该比率等于或大于（1-β）但等于或小于（1 +α），那么该数据被认为是不可靠的。

6. 发明授权

US5267217A Apparatus for and method of detecting shape of solder portion 失效
标题翻译：焊料部分形状检测方法及方法
公开(公告)号：US5267217A
公开(公告)日：1993-11-30
申请号：US671413
申请日：1991-03-20
申请人： Nobufumi Tokura , Shoichi Nishi
发明人： Nobufumi Tokura , Shoichi Nishi
IPC分类号： G01B11/24 , G01R31/309 , H05K13/08 , G01N21/00
CPC分类号： G01B11/24 , G01R31/309 , G01N2021/95646 , G01N21/95684
摘要： The surface of a solder portion is specular. Besides, it includes a flat plane, a steep inclined plane and a gentle inclined plane. Accordingly, when light is projected toward the solder portion in a specified direction and light reflected from the solder portion is observed with a camera, an image having the contrast between brightness and darkness is obtained. The present invention utilizes such light reflection characteristics of the solder portion in order to judge whether the shape of the solder portion is good or bad. According to the present invention, light is projected toward a solder portion for bonding the electrode of an electrical component to a substrate, in directions of at least two angles, and the solder portion is observed by a camera disposed above this solder portion. Subsequently, image data items picked up at the respective angles by the camera are stored in corresponding image memories, and the image data items are processed in combination by an image processor. Subsequently, image data having the feature of the shape of the solder portion as generated by the processing is stored in an image memory, and the quality of the shape of the solder portion is judged on the basis of the generated image data by a CPU.
摘要翻译：焊料部分的表面是镜面的。此外，它包括平面，陡峭的倾斜平面和平缓的倾斜平面。因此，当在指定方向上将光投射到焊料部分时，用相机观察从焊料部分反射的光线时，可获得亮度和黑度之间的对比度的图像。本发明利用焊料部分的这种光反射特性来判断焊料部分的形状是好是坏。根据本发明，将光线朝向用于将电气部件的电极至基板的至少两个角度的方向接合的焊料部分，并且通过位于该焊料部分上方的照相机观察焊料部分。随后，通过照相机以各个角度拍摄的图像数据项被存储在对应的图像存储器中，并且图像数据项由图像处理器组合处理。随后，将具有由该处理产生的焊料部分形状的特征的图像数据存储在图像存储器中，并且基于由CPU生成的图像数据来判断焊料部分的形状的质量。

7. 发明授权

US5192983A Apparatus for and method of checking external appearance of soldering state 失效
标题翻译：检查焊接状态外观的装置和方法
公开(公告)号：US5192983A
公开(公告)日：1993-03-09
申请号：US626051
申请日：1990-12-13
申请人： Nobufumi Tokura
发明人： Nobufumi Tokura
IPC分类号： G01B11/24 , G01N21/956 , G01R31/308
CPC分类号： G01R31/308 , G01B11/24 , G01N21/95684
摘要： A laser beam is projected from above toward a solder fillet for bonding the corresponding one of leads of an electronic component to a circuit board. The laser beam is reflected by the solder fillet, and the reflected beam is received by light receiving means disposed above and aslant the leads, thereby to measure a shape of the solder fillet.
摘要翻译：从上方将激光束投射到焊锡圆角上，用于将电子部件的相应引线连接到电路板。激光束被焊盘反射，并且反射光束被设置在引线上方并放置在引线上的光接收装置接收，从而测量焊料圆角的形状。

8. 发明授权

US4019026A Laser beam label reader head 失效
标题翻译：激光束标签读取头
公开(公告)号：US4019026A
公开(公告)日：1977-04-19
申请号：US616057
申请日：1975-09-23
申请人： Sadao Nakanishi , Nobufumi Tokura
发明人： Sadao Nakanishi , Nobufumi Tokura
IPC分类号： G06K7/10 , G06K7/14 , G02B5/08 , G06K9/10
CPC分类号： G06K7/10871
摘要： A laser beam label reader head of single common axis type wherein light reflection coming from a laser-irradiated label along the axis of a scanning laser beam is diverted by an apertured mirror toward a photoelectric converter. The photoelectric converter is provided with means for removing and blocking incident general light coming from sources other than the laser-irradiated label to preclude influences by ambient light and improve S/N ratio.
摘要翻译：一种单共轴型的激光束标签读取器头，其中沿着扫描激光束的轴线的激光照射标签的光反射通过多孔镜转向光电转换器。光电转换器设置有用于去除和阻挡来自激光照射标签之外的源的入射普通光的装置，以排除环境光的影响并提高S / N比。

9. 发明授权

US5598345A Method and apparatus for inspecting solder portions 失效
标题翻译：用于检查焊料部分的方法和装置
公开(公告)号：US5598345A
公开(公告)日：1997-01-28
申请号：US225944
申请日：1994-04-11
申请人： Nobufumi Tokura
发明人： Nobufumi Tokura
IPC分类号： G01N21/88 , G01N21/956 , G01R31/04 , G01R31/309 , H05K13/08 , G06F17/50
CPC分类号： G01R31/048 , G01N21/88 , G01N21/95684 , G01R31/309 , H05K13/08 , G01N2021/8867 , G01N2021/95615 , G01N2021/95661
摘要： An image taking device serves to take an image of an object to be inspected, and outputs an image signal representative thereof. A first deciding device serves to decide a condition of the object in response to the image signal. A measuring device serves to measure a shape of the object, and outputs a height signal representative of a height of the object. A second deciding device serves to decide a condition of the object in response to the height signal. A control device serves to, in cases where the first deciding device can not detect the condition of the object, enable the measuring device to measure the shape of the object and enable the second deciding device to decide the condition of the object, and enable the first deciding device to execute a leaning process on the object in response to a result of the decision by the second deciding device.
摘要翻译：图像摄取装置用于拍摄要检查的对象的图像，并输出代表其的图像信号。第一判定装置用于响应于图像信号来确定对象的状况。测量装置用于测量物体的形状，并输出表示物体的高度的高度信号。第二判定装置用于响应于高度信号来确定对象的状况。控制装置用于在第一判定装置不能检测到物体的状况的情况下，使得测量装置能够测量对象的形状，并且使得第二判定装置能够决定对象的状态，并使能第一判定装置响应于第二判定装置的判定结果，对对象执行倾斜处理。

10. 发明授权

US4160901A Coincidence testing method for enhancing the reliability of output data from a label reader 失效
标题翻译：用于提高标签读取器输出数据可靠性的一致性测试方法
公开(公告)号：US4160901A
公开(公告)日：1979-07-10
申请号：US891218
申请日：1978-03-29
申请人： Sadao Nakanishi , Kazuhiro Suzuki , Nobufumi Tokura , Shinichiro Endo
发明人： Sadao Nakanishi , Kazuhiro Suzuki , Nobufumi Tokura , Shinichiro Endo
IPC分类号： G06K7/00 , G06K5/00 , G06K7/14 , G08C9/06
CPC分类号： G06K5/00
摘要： A coincidence testing method for enhancing the reliability of output data from a label reader adapted to read a bar code consisting of a plurality of bars. Each bar in the bar code is scanned at a plurality of points and sets of binary symbols representative of the scanned points along each bar are obtained. Then the binary symbols in each set are ordered to correspond to the order of the scanned points or segments along each bar. Then coincidence tests are performed on successive pairs of binary symbols in each set to determine whether a reliable decision can be made for each bar.
摘要翻译：一种用于增强从适合于读取由多个条形组成的条形码的标签读取器的输出数据的可靠性的重合测试方法。在多个点处扫描条形码中的每个条，并且获得表示沿着每个条的扫描点的二进制符号的集合。然后，每组中的二进制符号被排序以对应于沿着每个条的扫描点或段的顺序。然后在每组中对连续的二进制符号对执行一致性测试，以确定是否可以对每个条进行可靠的决定。

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