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1.发明授权
公开(公告)号：US5200799A
公开(公告)日：1993-04-06
申请号：US580547
申请日：1990-09-11
申请人： Yuji Maruyama , Yukifumi Tsuda , Kazutoshi Ikegaya , Kunio Sannomiya , Hiroto Toba , Takumi Seto
发明人： Yuji Maruyama , Yukifumi Tsuda , Kazutoshi Ikegaya , Kunio Sannomiya , Hiroto Toba , Takumi Seto
IPC分类号： G01R31/309
CPC分类号： G01R31/309
摘要： A system for inspecting a condition of parts packaged on a printed-circuit board. The inspection system includes a position detecting device to receive scattered light due to illumination of the printed-circuit board with a laser beam and convert the received scattered light into a position signal. This position signal is used for obtaining luminance data and at least two height data of the parts on the printed-circuit board. Proper height data of the parts is determined on the basis of the difference between the two height data. The inspection system determines the package condition by comparing the final height data with a predetermined reference data.
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公开(公告)号：US4983827A
公开(公告)日：1991-01-08
申请号：US427507
申请日：1989-10-25
申请人： Kazutoshi Ikegaya , Kunio Sannomiya , Yukifumi Tsuda , Yuji Maruyama , Nobuhiro Araki , Hiroto Toba
发明人： Kazutoshi Ikegaya , Kunio Sannomiya , Yukifumi Tsuda , Yuji Maruyama , Nobuhiro Araki , Hiroto Toba
IPC分类号： G01N21/88 , G01B11/24 , G01B11/245 , G01N21/93 , G01N21/956 , G01R31/309 , H05K3/34 , H05K13/08
CPC分类号： G01R31/309 , H05K13/08
摘要： A linescan apparatus for detecting salient pattern on a surface of a product comprises: a laser light source for continuously emitting a laser beam; a polygon mirror for reflecting the laser beam; a drive for rotating the polygon mirror to scan said laser beam; an f.theta. lens arranged such that the linescan laser beam strikes against the plane perpendicularly; a carrying device for moving the product in the direction substantially perpendicular to the plane; a mirror for reflecting the linescan laser beam reflected at a surface of the product to direct the linescan laser beam to the polygon mirror through the f.theta. lens, the mirror being positioned apart from the second plane; and a beam position detector for detecting unidimensional position of a spot mede by the linescan laser beam projected thereon from the mirror via the polygon mirror. This linescan apparatus provides three-dimensional data of a surface of the product. The detected position signal is compared by reference data for inspecting the product. An linescan apparatus further comprises second beam position detector and an averaging circuit for averaging outputs from first mentioned and second beam detectors.
摘要翻译： 用于检测产品表面上的突出图案的线条扫描装置包括：用于连续发射激光束的激光源; 用于反射激光束的多面镜; 用于旋转多面镜以扫描所述激光束的驱动器; f theta透镜布置成使得线可激光束垂直于平面撞击平面; 用于沿着与该平面基本垂直的方向移动产品的承载装置; 用于反射在产品的表面处反射的线阵激光束的反射镜，以通过fθ透镜将线阵激光束引导到多面镜，反射镜被定位成离开第二平面; 以及光束位置检测器，用于通过经由多面镜从反射镜投射到其上的线扫描激光束来检测点中心的一维位置。 该线扫描装置提供产品表面的三维数据。 通过用于检查产品的参考数据来比较检测到的位置信号。 线扫描装置还包括第二光束位置检测器和用于平均来自第一和第二光束检测器的输出的平均电路。
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公开(公告)号：US5103105A
公开(公告)日：1992-04-07
申请号：US602573
申请日：1990-10-24
IPC分类号： G01R31/309
CPC分类号： G01R31/309
摘要： A beam of light is applied to a surface of a circuit board provided with at least one solder portion. The light beam scans the surface of the circuit board. Height data are derived from a portion of the light beam which is scattered at the surface of the circuit board. The height data represent a height of a currently-scanned point of the surface of the circuit board. The height data are accumulatively added for the solder portion. A variation in the height data is calculated. The accumulative addition of the height data is executed and suspended in response to the calculated variation in the height data. A decision is made as to whether the solder portion is acceptable or unacceptable on the basis of a result of the accumulative addition.
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4.发明授权Electro-optical inspection apparatus for printed-circuit boards with components mounted thereon 失效具有安装在其上的部件的印刷电路板的电光检查装置
公开(公告)号：US5027418A
公开(公告)日：1991-06-25
申请号：US478339
申请日：1990-02-12
IPC分类号： G06T7/00
CPC分类号： G06T7/0006 , G06T2207/30141
摘要： A printed-circuit board inspection apparatus for checking the condition of each circuit component mounted by soldering on a printed-circuit board is disclosed in which a luminance signal obtained from the reflected light scattering from the printed-circuit board being illuminated is converted through a given threshold level to binary signals, then the binary signals and mask data are processed to calculate the ratio of an area represented by the number of binary "1" signals to an area represented by the number of binary "0" signals, and the soldering condition of the component is judged based on the area ratio. With this arrangement, the inspection is not negatively influenced by the misalignment of the component with a mating soldering land, is capable of judging the amount of solder, and can be performed automatically and efficiently. The binary signals may be converted into code data by assigning a code "1" or "0" to each of a plurality of split masks set on each soldering land, depending on the largeness of the area in which the number of binary "1" signals "1" is larger than the number of binary "0" signals or vice versa. In this case, the judgment of the soldering condition is made by comparing the code data with code patterns contained in a predetermined code table.
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公开(公告)号：US4180330A
公开(公告)日：1979-12-25
申请号：US798010
申请日：1977-05-18
申请人： Hiroaki Kotera , Hiroyoshi Tsuchiya , Ryuzo Itabashi , Kunio Yoshida , Tsutomu Shibata , Yukifumi Tsuda , Yoshimitsu Kanno , Heijiro Hayami , Haruko Sugita
发明人： Hiroaki Kotera , Hiroyoshi Tsuchiya , Ryuzo Itabashi , Kunio Yoshida , Tsutomu Shibata , Yukifumi Tsuda , Yoshimitsu Kanno , Heijiro Hayami , Haruko Sugita
CPC分类号： H04N1/488
摘要： Light beams scans patterns of a subject copy, being reflected therefrom, and being converted into pulsating electrical signals. Color borders between two different colored patterns are detected based on the pulsating signals. On the other hand, a color of a predetermined scanned line following each of the color borders is sensed for determining the sensed color as a color between the adjacent color borders.
摘要翻译： 光束扫描被摄物体的图案，从其反射并被转换为脉动电信号。 基于脉动信号检测两种不同着色图案之间的色彩边界。 另一方面，检测每个颜色边界之后的预定扫描线的颜色，以将感测到的颜色确定为相邻颜色边界之间的颜色。
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6.发明授权
公开(公告)号：US4072958A
公开(公告)日：1978-02-07
申请号：US673132
申请日：1976-04-02
摘要： An ink ejection system of the invention includes an electrical circuit generating sinusoidal wave pulses and a liquid applying unit operable to discharge the liquid in pulsed jets in response to the sinusoidal wave pulses. The circuit comprises means for generating a sinusoidal signal of constant amplitude and frequency higher than the highest instantaneous frequency of a video signal, and means for modulating the amplitude of the sinusoidal signal in accordance with the video signal to generate a signal containing no harmonic components.
摘要翻译： 本发明的喷墨系统包括产生正弦波脉冲的电路和液体施加单元，其可操作以响应于正弦波脉冲在脉冲射流中排出液体。 电路包括用于产生恒定幅度和频率高于视频信号的最高瞬时频率的正弦信号的装置，以及用于根据视频信号调制正弦信号的振幅的装置，以产生不包含谐波分量的信号。
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公开(公告)号：US4394662A
公开(公告)日：1983-07-19
申请号：US288513
申请日：1981-07-30
CPC分类号： H04N1/4057 , H04N1/4051
摘要： To overcome the tendency of the recording head of a dot printer to become inoperative in a range below a threshold level, a gray scale input signal is modulated with an oscillating signal so that the modulated signal oscillates above and below the threshold level to reproduce halftone values below the otherwise inoperative range.
摘要翻译： 为了克服点打印机的记录头在低于阈值水平的范围内变得不起作用的趋势，用振荡信号调制灰度输入信号，使得调制信号在阈值水平之上和之下振荡以再现半色调值 低于其他不起作用的范围。
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公开(公告)号：US3941922A
公开(公告)日：1976-03-02
申请号：US415332
申请日：1973-11-13
摘要： A transmitter for a facsimile system of run-length type, which comprises a facsimile signal generator, a pulse generator for producing a sampling pulse train, a sampler for sampling each of the space and mark signals with the sampling pulse train, and a coder for converting the sampled space and mark signals into successive binary code signals, the coder including at least two counters and means for selectively operating the two counters. A receiver for facsimile system of run-length type, which comprises a timing pulse generator for producing timing pulses, a demodulator for demodulating modulated binary code signals, a decoder for decoding the binary code signals into binary codes each representing a run-length of one of mark and space signals, a memory circuit for memorizing the binary codes, said memory circuit including at least two registers and means for selectively operating the two registers, and a reconverting circuit for reconverting the binary codes from the memory circuit into one of the mark and space signals.
摘要翻译： 一种游程式传真机的发射机，包括传真信号发生器，用于产生采样脉冲串的脉冲发生器，用采样脉冲串对每个空间和标记信号进行采样的采样器，以及编码器 将采样的空间转换并将信号标记为连续的二进制码信号，编码器包括至少两个计数器和用于选择性地操作两个计数器的装置。 一种游程式传真机的接收机，包括用于产生定时脉冲的定时脉冲发生器，用于解调调制的二进制码信号的解调器，用于将二进制码信号解码成二进制码的解码器，每个二进制码代表一个游程长度一个 标记和空格信号的存储电路，用于存储二进制码的存储电路，所述存储器电路包括至少两个寄存器和用于选择性地操作两个寄存器的装置，以及用于将来自存储器电路的二进制码重新转换为标记之一的再转换电路 和空间信号。
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9.发明授权Color correction processor with memory addressed by color component signals having unevenly-distributed data bits 失效具有由具有不均匀分布的数据位的颜色分量信号寻址的存储器的色彩校正处理器
公开(公告)号：US4814867A
公开(公告)日：1989-03-21
申请号：US130617
申请日：1987-12-09
申请人： Yukifumi Tsuda , Hiroaki Kotera , Teruo Fumoto
发明人： Yukifumi Tsuda , Hiroaki Kotera , Teruo Fumoto
CPC分类号： H04N1/6019
摘要： Color correction method and processor for improving the quality of color reproduction in a color picture recording unit or display unit in a color copy machine, a color facsimile or a color printer. A memory means previously stores in a table values of secondary color correction image data used for recording corresponding to values of primary image data produced through a color scanning of a color picture. The secondary color correction image data are read out from the table by addressing signals formed from the three color components of the primary image data. Data bits for the addressing signals of the three color components of the primary image data are assigned unevenly depending on the contribution factor of each in forming the three color components of the secondary color crrection image data, thereby reducing the required number of addressing bits and associated memory.
摘要翻译： 色彩校正方法和处理器，用于提高彩色复印机，彩色传真机或彩色打印机中的彩色图像记录单元或显示单元中的色彩再现质量。 存储器装置预先存储与通过彩色图像的彩色扫描产生的主要图像数据的值相对应的用于记录的二次色彩校正图像数据的表中的值。 通过对由主要图像数据的三个颜色分量形成的信号进行寻址，从表中读出二次色彩校正图像数据。 主图像数据的三色分量的寻址信号的数据位根据形成次色色图像数据的三色分量的贡献因子而不均匀地分配，从而减少所需数量的寻址位和相关联 记忆。
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10.发明授权Method and apparatus for separating, combining and rearranging colored images 失效用于分离，组合和重新排列彩色图像的方法和装置
公开(公告)号：US4020502A
公开(公告)日：1977-04-26
申请号：US621533
申请日：1975-10-10
申请人： Heijiro Hayami , Hiroaki Kotera , Hiroyoshi Tsuchiya , Ryuzo Kan , Kunio Yoshida , Tsutomu Shibata , Yukifumi Tsuda
发明人： Heijiro Hayami , Hiroaki Kotera , Hiroyoshi Tsuchiya , Ryuzo Kan , Kunio Yoshida , Tsutomu Shibata , Yukifumi Tsuda
CPC分类号： H04N1/648
摘要： A colored original which is painted with a plurality of predetermined colors is scanned along each of a plurality of line paths each of which can be divided into one or more colored line segments. Encoders are provided to characterize each of the line segments by a corresponding first code representing the color of the segment and a second code representing the run length of the segment. The first and second codes are sequentially recorded in a data file memory. The recorded information is repeatedly retrieved from the memory and transferred to a shift register. Line segments carrying the same color within each line path are detected by comparing the corresponding first code with a specified code. The second code is sequentially decoded into run lengths which are accumulated to measure the position of color transitions relative to the colored original. A video signal is generated upon occurrence of coincidence between the first code and the specified code. A photographic film is scanned by a light beam modulated with the video signal to develop an image carrying the detected color on a specified portion of the film in correspondence with the specified code. The codes to be specified are sequentially changed to detect the line segments of different colors in a predetermined sequence within the period of the scanning. In synchronism with the code change, the shift register is shifted to recirculate the data.
摘要翻译： 沿着多个线路路径中的每一条扫描以多个预定颜色涂上的彩色原稿，每条线路可以分成一个或多个彩色线段。 提供编码器以通过表示段的颜色的对应的第一代码和表示段的游程长度的第二代码来表征每个线段。 第一和第二代码被顺序记录在数据文件存储器中。 记录的信息从存储器重复地检索并传送到移位寄存器。 通过将相应的第一代码与指定的代码进行比较来检测在每个线路中携带相同颜色的线段。 第二代码被顺序地解码为运行长度，其被累积以测量相对于着色原稿的颜色转换的位置。 在第一代码和指定代码之间出现一致时产生视频信号。 通过用视频信号调制的光束扫描摄影胶片，以根据指定的代码开发在胶片的指定部分上携带检测到的颜色的图像。 要指定的代码被顺序地改变，以便在扫描周期内以预定的顺序检测不同颜色的线段。 与代码变化同步，移位寄存器被移位以再循环数据。
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