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1.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：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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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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公开(公告)号：US4090243A
公开(公告)日：1978-05-16
申请号：US683657
申请日：1976-05-06
申请人： Hiroaki Kotera , Heijiro Hayami , Hiroyoshi Tsuchiya , Ryuzo Kan , Kunio Yoshida , Tsutomu Shibata , Yukifumi Tsuda
发明人： Hiroaki Kotera , Heijiro Hayami , Hiroyoshi Tsuchiya , Ryuzo Kan , Kunio Yoshida , Tsutomu Shibata , Yukifumi Tsuda
CPC分类号： G07D7/20 , G01J3/46 , G06T1/0007 , G07D7/121 , G07D7/122 , G01J2003/466 , G01J3/513
摘要： A color print painted with different colors C.sub.i (i = 1, 2 . . . n) is scanned by a color scanner along a plurality of successive line paths to generate a set of electrical signals each representing the intensity of the spectral components of the light reflected from an elemental area of the print. A macroscopic color separator is provided to generate a set of electrical signals each representing the average spectral intensities per unit area of the print. A data processor is used to compute the probability P(C.sub.i) from the data obtained from the macroscopic color separator and a set of mean spectral intensities exhibited by the color samples with which the print is painted by artisans. In accordance with the Bayes' Rule, the processor then executes computation of the product of P(C.sub.i) and the conditional probability of occurrence of elemental color spectral intensities given that the elemental area being scanned belongs to a particular color sample, using the data received from the color scanner as it scans the print.
摘要翻译： 用彩色扫描仪沿着多条连续的线路扫描用不同颜色Ci（i = 1,2，...）绘制的彩色印刷品，以产生一组电信号，每组电信号表示光线的光谱分量的强度 从印刷品的元素区域反映出来。 提供宏观颜色分离器以产生每组表示印刷单位面积的平均光谱强度的一组电信号。 数据处理器用于根据从宏观颜色分离器获得的数据和由工匠画出印刷品的颜色样本展示的一组平均光谱强度来计算概率P（Ci）。 根据贝叶斯规则，处理器然后执行P（Ci）乘积的计算和基本色谱强度出现的条件概率，假设被扫描的元素区属于特定颜色样本，使用接收到的数据 从彩色扫描器扫描打印。
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5.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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公开(公告)号：US4034406A
公开(公告)日：1977-07-05
申请号：US525659
申请日：1974-11-20
CPC分类号： H04N1/419
摘要： A two-valued object such as black-and-white textural or pictorial material is repeatedly scanned aong each of a plurality of line paths within the object to produce an image signal which is representative of a series of black and white runs or areas within the line path. The length of black or white run or "run length" is sampled by clock pulses and translated into a binary code and transmitted bit by bit at the line scan rate to a receiver station. A vertical sync pulse is inserted at the end of the (n-1)th run length wherein n represents the number of run lengths within the image signal so that the last run length is skipped. The last run length so skipped at the transmitter is reconstructed at the receiver during the time interval of the vertical sync pulse.
摘要翻译： 在对象内的多个线路中的每一条上重复扫描诸如黑白纹理或图形材料的二值对象以产生代表一系列黑白行程或图像信号内的区域的图像信号 线路。 黑色或白色运行的长度或“游程长度”由时钟脉冲采样，并转换为二进制码，并以线扫描速率逐位传送到接收站。 在第（n-1）个游程长度的末尾插入垂直同步脉冲，其中n表示图像信号内的游程长度的数量，以便跳过最后的游程长度。 在垂直同步脉冲的时间间隔期间，在接收机处重建在发射机处跳过的最后一个行程长度。
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公开(公告)号：US4011399A
公开(公告)日：1977-03-08
申请号：US437986
申请日：1974-01-30
CPC分类号： H04N1/419
摘要： A photographic image pick-up and coding system of run-length type which includes a correction circuit for preventing erroneous operation of the system even when the system is subjected to unwanted external disturbances such as noises and fluctuations of the voltage of the power source.
摘要翻译： 即使在系统受到诸如噪声等不良外部干扰和电源电压的波动的影响时，也包括用于防止系统错误操作的校正电路的游程式摄影图像拾取和编码系统。
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8.发明授权Method and apparatus for converting a line density of a bi-level image signal 失效用于转换双向图像信号的线密度的方法和装置
公开(公告)号：US5229868A
公开(公告)日：1993-07-20
申请号：US571350
申请日：1990-08-23
申请人： Yoshimitsu Kanno , Toshiharu Kurosawa , Hidehiko Kawakami , Hiroaki Kotera , Hiroyoshi Tsuchiya , Hideaki Ohira , Mutuo Hashizume
发明人： Yoshimitsu Kanno , Toshiharu Kurosawa , Hidehiko Kawakami , Hiroaki Kotera , Hiroyoshi Tsuchiya , Hideaki Ohira , Mutuo Hashizume
IPC分类号： H04N1/40
CPC分类号： H04N1/40075 , H04N1/40068
摘要： A correspondence relation between a structure of a bi-level pattern A and a structure of a bi-level pattern B is statistically learned by use of a learning high-density image. The bi-level pattern A forms a partial region of a low-density character and line image except a screened dot image. The bi-level pattern B forms a corresponding partial region of a desired high-density image. A judgement is made as to whether the low-density image is equal to or different from a screened dot image. Reference pixels are selected from the partial region of the low-density image. The low-density bi-level pattern A is converted into the high-density bi-level pattern B on the basis of a result of the learning by use of the selected reference pixels when the low-density image is different from a screened dot image. A pixel of the low-density image is repeated to convert the low-density image into the high-density image when the low-density image is equal to a screend dot image.
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公开(公告)号：US4924322A
公开(公告)日：1990-05-08
申请号：US324780
申请日：1989-03-17
CPC分类号： H04N1/4053
摘要： An image signal processing apparatus for converting input signal values representing density levels of successive picture elements of an image to corresponding bi-level signal values, whereby a conversion error for an object picture element is apportioned among a set of unprocessed adjacent picture elements, to update respective values of accumulated error. Each input signal value is compensated, prior to conversion, by a value derived from the total accumulated errors of the object picture element and these adjacent picture elements, while the conversion error is derived by subtracting from the bi-level output value a value obtained by compensating the input signal by the accumulated error for the object picture element.
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公开(公告)号：US4891710A
公开(公告)日：1990-01-02
申请号：US136486
申请日：1987-12-21
IPC分类号： H04N1/405
CPC分类号： H04N1/4052 , H04N1/4053
摘要： An image signal processing circuit for converting step-gradation density values (I.sub.xy) of successive picture elements to bi-level values (P.sub.xy) for display by a bi-level display device, in which a bi-level error (E.sub.xy) between a bi-level value determined for a picture element and an appropriate density value for the element is apportioned among a set of peripherally adjacent picture elements (A to D) by computing a corresponding set of error apportionment values (G.sub.A to G.sub.D), and in which a difference between the sum total of these apportionment values and the bi-level error is derived, and error apportionment is modified such as to eliminate the effects of this difference. Improved reproduction is thereby attained of image regions which are of uniformly high density or low density.
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