Patents by Inventor Susumu Sugiura
Susumu Sugiura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5742296Abstract: An image processing method for executing image data conversion between different types of input and output devices having different color reproduction ranges, and an apparatus therefor are disclosed. A device independent color reproduction range is calculated in, e.g., a CIE L*a*b* uniform color space, and a color reproduction range depending on a device such as a binary recording color printer is calculated. Only a saturation is compressed at a compression ratio corresponding to the ratio of the two calculated color reproduction ranges. Thus, when an output device outputs a color image, image qualities (color reproducibilities) of input and output images can be equalized. Even when a color outside the color reproduction range of the output device is to be output, a satisfactory output which preserves gradation characteristics can be obtained.Type: GrantFiled: June 7, 1995Date of Patent: April 21, 1998Assignee: Canon Kabushiki KaishaInventors: Osamu Yamada, Susumu Sugiura, Yoshizumi Yasuda
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Patent number: 5740028Abstract: There is disclosed an information input/output control device and a method for controlling the same which supervises a working condition of an information terminal device connected to the information input/output control device under a network circumstance executing various functional operations, memorizes status informations in a manner enabling to be restarted and executes the functional operations in the information terminal devices other than the preceding one in response to an input of an operation cease information of the preceding information terminal device.Type: GrantFiled: May 29, 1997Date of Patent: April 14, 1998Assignee: Canon Kabushiki KaishaInventors: Mitsumasa Sugiyama, Susumu Sugiura, Yoshikazu Yokomizo, Yoshinobu Mita, Makoto Takaoka, Shigetada Kobayashi, Junichi Shishizuka, Tsutomu Negishi, Osamu Yamada, Yukari Toda, Kazuhiro Saito, Masanari Toda, Yasuhiko Hashimoto, Yasuo Fukuda
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Patent number: 5720013Abstract: A variety of parameters for a scanner printer are set from a host computer on a network by arranging a scanner printer server system composed of the host computer and the scanner printer server connected to the network, and a scanner and a printer connected to the scanner printer. The scanner printer server system has a bidirectional communication channel formed between the scanner, the printer and the scanner printer server, wherein characters, graphics and a method of transferring image are instructed from the host computer and the data is transferred by the instructed transference method.Type: GrantFiled: February 7, 1995Date of Patent: February 17, 1998Assignee: Canon Kabushiki KaishaInventors: Toyokazu Uda, Susumu Sugiura, Makoto Takaoka, Shigetada Kobayashi
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Patent number: 5666216Abstract: Image processing apparatus and method perform a predetermined compression processing for an input original. A compression processing method or a receiver of compressed data is changed in accordance with a color/black-and-white status discrimination for the input original, or is set manually.Type: GrantFiled: August 16, 1994Date of Patent: September 9, 1997Assignee: Canon Kabushiki KaishaInventor: Susumu Sugiura
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Patent number: 5621476Abstract: An image processing apparatus prevents an increase in random noise and the like produced by distributing a transformation error, which is produced at the time of a level-number transformation, to unprocessed pixel data. Error data X.sub.n is added to pixel data, which has entered via an input unit, by an adder. Thereafter, the resulting data is subjected to a level-number transformation by a binarizing circuit. Transformation error produced at the time of the level-number transformation is calculated by an error arithmetic unit. The transformation error thus calculated is distributed to unprocessed pixel data by an error-diffusion unit, and the error is accumulated in a line buffer memory as error data. When processing of a prescribed number of lines has ended, a line-number discriminating circuit clears the error data that has been accumulated in the line buffer memory. As a result, an increase in random noise is prevented.Type: GrantFiled: June 5, 1995Date of Patent: April 15, 1997Assignee: Canon Kabushiki KaishaInventors: Takeshi Makita, Susumu Sugiura, Osamu Yamada
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Patent number: 5617123Abstract: An image processing apparatus for recording image data using an ink jet recording method comprises: an ink jet nozzle to eject an ink droplet and deposit onto a paper; a controller to control the ink jet nozzle so as to enable the recording interval when the ink droplet is deposited on the same position on the paper a plurality of times; a supply circuit to supply image data to the ink jet nozzle; and a distinction circuit to discriminate whether the input image data is a half tone image or a diagram image, wherein this controller controls the recording interval in accordance with the result of the discrimination. With this apparatus, by superposing the recording dots on the same position on the paper in accordance with the binary image data, gradations and graininess can be improved by a simple structure.Type: GrantFiled: June 5, 1995Date of Patent: April 1, 1997Assignee: Canon Kabushiki KaishaInventors: Makoto Takaoka, Susumu Sugiura, Kentaro Matsumoto, Toyokazu Uda, Masami Uda
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Patent number: 5561536Abstract: A color image communication apparatus can switch between a copy mode and a communication mode. In the communication mode, color space standardization conversion of objective color image data is performed, while in the copying mode, color space standardization conversion of the objective image data is not performed.Type: GrantFiled: September 12, 1994Date of Patent: October 1, 1996Assignee: Canon Kabushiki KaishaInventors: Susumu Sugiura, Yoshinobu Mita, Makoto Takaoka, Junichi Shishizuka, Yukari Shimomura, Kentaro Matsumoto, Toyokazu Uda, Mitsumasa Sugiyama, Shigetada Kobayashi, Katsutoshi Hisada, Yoji Kaneko, Hiroyuki Nakanishi
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Patent number: 5543855Abstract: An image processing apparatus which enables error diffusion in interlaced-scanning image data. An input unit inputs image data formed by interlaced-scanning, and an adder adds error data to the input data. A binarization circuit performs level-conversion on this data. An error calculator obtains a quantization error as error data to be diffused to other pixels. The error data is stored in first and second lines in a line buffer. When processing for one scanning line is finished, error data for the next scanning line is read out of a frame buffer and stored into the first line in the line buffer, and the error data stored in the second line in the line buffer is stored at a corresponding position in the frame buffer, then the second line is cleared.Type: GrantFiled: May 20, 1994Date of Patent: August 6, 1996Assignee: Canon Kabushiki KaishaInventors: Osamu Yamada, Susumu Sugiura, Takeshi Makita
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Patent number: 5495542Abstract: Use is made of a neural network in order to restore a binary image to an original multi-level image, by way of example. Using the neural network makes it possible to raise the accuracy of restoration and the speed of processing.Type: GrantFiled: September 7, 1994Date of Patent: February 27, 1996Assignee: Canon Kabushiki KaishaInventors: Yukari Shimomura, Susumu Sugiura, Takeshi Kobayashi
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Patent number: 5483358Abstract: It is provided an image communication apparatus which comprises multi-level generation section for generating multi-level data from received image data, color conversion section for color-converting the multi-level data from the multi-level generation section, and setting section for setting a single color mode, in which the received image data is dealt with as single color data irrespective of the color conversion section, when it is determined by communication protocol that the communication mode is the single color mode, so as to ensure satisfactory communication even with a single color image.Type: GrantFiled: March 27, 1991Date of Patent: January 9, 1996Assignee: Canon Kabushiki KaishaInventors: Susumu Sugiura, Yoshinobu Mita, Junichi Shishizuka, Makoto Takaoka, Yukari Shimomura, Kentaro Matsumoto, Toyokazu Uda, Mitsumasa Sugiyama, Shigetada Kobayashi, Katsutoshi Hisada, Yoji Kaneko, Hiroyuki Nakanishi
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Patent number: 5465164Abstract: Disclosed is an image processing device which comprises a conversion means for converting an image data to a space frequency component, a quantization means for quantizing the space frequency component converted by the conversion means, and a control means for controlling the quantization means so that a quantization error produced when the converted space frequency component is quantized by the quantization means is diffused to nearby space frequency components.Type: GrantFiled: April 14, 1992Date of Patent: November 7, 1995Assignee: Canon Kabushiki KaishaInventors: Susumu Sugiura, Yoshinobu Mita
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Patent number: 5463478Abstract: An image processing apparatus prevents an increase in random noise and the like produced by distributing a transformation error, which is produced at the time of a level-number transformation, to unprocessed pixel data. Error data X.sub.n is added to pixel data, which has entered via an input unit, by an adder. Thereafter, the resulting data is subjected to a level-number transformation by a binarizing circuit. Transformation error produced at the time of the level-number transformation is calculated by an error arithmetic unit. The transformation error thus calculated is distributed to unprocessed pixel data by an error-diffusion unit, and the error is accumulated in a line buffer memory as error data. When processing of a prescribed number of lines has ended, a line-number discriminating circuit clears the error data that has been accumulated in the line buffer memory. As a result, an increase in random noise is prevented.Type: GrantFiled: May 17, 1994Date of Patent: October 31, 1995Assignee: Canon Kabushiki KaishaInventors: Takeshi Makita, Susumu Sugiura, Osamu Yamada
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Patent number: 5361144Abstract: Image processing apparatus and method perform a predetermined compression processing for an input original. A compression processing method or a receiver of compressed data is changed in accordance with a color/black-and-white status discrimination for the input original, or is set manually.Type: GrantFiled: March 12, 1993Date of Patent: November 1, 1994Assignee: Canon Kabushiki KaishaInventor: Susumu Sugiura
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Patent number: 5313286Abstract: A window of n.times.m dot is spread over binarized color image data in an original image in order to multi-levelcode the binary data for various image processes with respect to the multi-level-coded data. A binary window is re-arranged to determine the number of dots to be printed within the window for re-arrangement of the dots so as to correspond to the dot positions in the original image. When the number of dots to be printed is within the number of dots in the original image, the dots are rearranged so as to correspond to the dot positions in the original image, while on the contrary, when the number of dots to be printed is increased or decreased, the number of dots is accordingly increased or decreased based on a table, in which the priority of dot arrangement is provided.Type: GrantFiled: June 18, 1990Date of Patent: May 17, 1994Assignee: Canon Kabushiki KaishaInventors: Susumu Sugiura, Shigetada Kobayashi
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Patent number: 5252986Abstract: An image processing apparatus for recording image data using an ink jet recording method comprises: an ink jet nozzle to eject an ink droplet and deposit onto a paper; a controller to control the ink jet nozzle so as to enable the recording interval when the ink droplet is deposited on the same position on the paper a plurality of times; a supply circuit to supply image data to the ink jet nozzle; and a distinction circuit to discriminate whether the input image data is a half tone image or a diagram image, wherein this controller controls the recording interval in accordance with the result of the discrimination. With this apparatus, by superposing the recording dots on the same position on the paper in accordance with the binary image data, gradations and graininess can be improved by a simple structure.Type: GrantFiled: April 15, 1991Date of Patent: October 12, 1993Assignee: Canon Kabushiki KaishaInventors: Makoto Takaoka, Susumu Sugiura, Kentaro Matsumoto, Toyokazu Uda, Masami Fukumoto
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Patent number: 5253048Abstract: There is described a color image processing apparatus in which time-sequential color image signals are converted into parallel by a delay circuit, then subjected to a desired image processing and again converted into time-sequential color image signals, thus achieving image processing in a simple inexpensive circuit.Type: GrantFiled: February 27, 1992Date of Patent: October 12, 1993Assignee: Canon Kabushiki KaishaInventors: Tetsuzo Mori, Takashi Sugino, Makoto Takaoka, Susumu Sugiura, Hiroyuki Ichikawa
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Patent number: 5220417Abstract: Image processing apparatus and method perform a predetermined compression processing for an input original. A compression processing method or a receiver of compressed data is changed in accordance with a color/black-and-white status discrimination for the input original, or is set manually.Type: GrantFiled: October 31, 1990Date of Patent: June 15, 1993Assignee: Canon Kabushiki KaishaInventor: Susumu Sugiura
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Patent number: 5140441Abstract: When image data binarized by a density-preserving type multilevel-coding method is to be recovered to multilevel image data, the size of a scanning window which includes as a central pixel point a pixel point to be subjected to multilevel coding is varied and the sums of data values of the binarized image data contained in the scanning windows corresponding to individual window sizes are sequentially calculated in the order of window size. If the sum of the binarized image data value reaches a predetermined threshold for each scanning window size, this window size is determined as a scanning window size for multilevel coding, and multilevel coding is executed. With this process, an optimum window size is determined which is suitable for use in effecting multilevel-coding with high image quality. Since multilevel coding employing the optimum window size is performed, multilevel coding with high image quality and high resolution is enabled.Type: GrantFiled: September 12, 1989Date of Patent: August 18, 1992Assignee: Canon Kabushiki KaishaInventors: Susumu Sugiura, Shigetada Kobayashi
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Patent number: 5126839Abstract: There is disclosed a color copier or the line in which an original image is separated into plural image signals of different color components, which are repeatedly subjected to a determined signal process to reproduce the original image with an improved image quality and with a simple structure.Type: GrantFiled: November 30, 1987Date of Patent: June 30, 1992Assignee: Canon Kabushiki KaishaInventor: Susumu Sugiura
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Patent number: 5117284Abstract: There is described a color image processing apparatus in which time-sequential color image signals are converted into parallel by a delay circuit, then subjected to a desired image processing and again converted into time-sequential color image signals, thus achieving image processing in a simple inexpensive circuit.Type: GrantFiled: July 30, 1991Date of Patent: May 26, 1992Assignee: Canon Kabushiki KaishaInventors: Tetsuzo Mori, Takashi Sugino, Makoto Takaoka, Susumu Sugiura, Hiroyuki Ichikawa