Patents by Inventor Mikio Shoki
Mikio Shoki 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: 7794073Abstract: A light guide 3c of the printing shear detection sensor 3 is shaped so that the width of a side cross section when viewed in the conveying direction of a recording paper sheet P indicated by arrow B may be gradually smaller with an increasing degree of change from the top toward the bottom. The light emitted from the light emitting device 3a is incident on the light guide 3c from above, passes through the light guide 3c while being reflected on the side surface of the light guide 3c, is emitted toward the recording paper sheet P from the bottom of the light guide 3c, converged and projected on the recording paper sheet P as slit-like light. The light reflected on the recording paper sheet P is incident on the light receiving device 3b and thus, the printing shear detection pattern formed on the recording paper sheet P can be detected with high accuracy. The light guide 3c can be manufactured with using an inexpensive molding die at low costs, distinct from the conventional condenser lens.Type: GrantFiled: August 11, 2006Date of Patent: September 14, 2010Assignees: Funai Electric Co., Ltd., Lexmark International, Inc.Inventor: Mikio Shoki
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Patent number: 7564594Abstract: In a digital multifunctional apparatus, enlargement/reduction parameters for respective pixels are calculated by an image processing circuit multiplying a length enlargement/reduction ration output from a CPU by pixel numbers of an image read by an image sensor, in which the pixel numbers are counted form a starting pixel of the image reading. A pixel counter counts integer portion C of each enlargement/reduction parameter. When the integer portion C of the calculated enlargement parameter of a respective pixel increases by at least two from that of the preceding pixel, a pixel supplement circuit supplements one image data to enlarge the image data. When the counted integer portion C of the calculated reduction parameter of a respective pixel is unchanged form that of the preceding pixel, the image processing circuit removes the image data of the respective pixel to reduce the image data.Type: GrantFiled: May 10, 2005Date of Patent: July 21, 2009Assignee: Funai Electric Co., Ltd.Inventor: Mikio Shoki
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Patent number: 7384117Abstract: In an ink jet printer using an ink cartridge having an ink tank for storing ink therein and a recording head for ejecting the ink stored in the ink tank as ink drops and forming an image on a recording paper sheet, the detection accuracy of a displacement detection sensor for detecting a displacement of printing position is improved while reducing manufacturing costs of the displacement detection sensor. The displacement detection sensor is comprised of a light emitting device for emitting diffused light, a first lens for focusing the light emitted from the light emitting device on a recording paper sheet, a second lens for focusing the light reflected by the recording paper sheet and a light receiving device for receiving the light focused by the second lens.Type: GrantFiled: November 1, 2005Date of Patent: June 10, 2008Assignee: Funai Electric Co., Ltd.Inventors: Mikio Shoki, Ryuji Aoki, Toshiyuki Nakanishi, Yuichiro Itoh, Makoto Tsujinishi
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Publication number: 20070040884Abstract: A light guide 3c of the printing shear detection sensor 3 is shaped so that the width of a side cross section when viewed in the conveying direction of a recording paper sheet P indicated by arrow B may be gradually smaller with an increasing degree of change from the top toward the bottom. The light emitted from the light emitting device 3a is incident on the light guide 3c from above, passes through the light guide 3c while being reflected on the side surface of the light guide 3c, is emitted toward the recording paper sheet P from the bottom of the light guide 3c, converged and projected on the recording paper sheet P as slit-like light. The light reflected on the recording paper sheet P is incident on the light receiving device 3b and thus, the printing shear detection pattern formed on the recording paper sheet P can be detected with high accuracy. The light guide 3c can be manufactured with using an inexpensive molding die at low costs, distinct from the conventional condenser lens.Type: ApplicationFiled: August 11, 2006Publication date: February 22, 2007Applicants: FUNAI ELECTRIC CO., LTD., LEXMARK INTERNATIONAL, INC.Inventor: Mikio Shoki
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Publication number: 20060092208Abstract: In an ink jet printer using an ink cartridge having an ink tank for storing ink therein and a recording head for ejecting the ink stored in the ink tank as ink drops and forming an image on a recording paper sheet, the detection accuracy of a displacement detection sensor for detecting a displacement of printing position is improved while reducing manufacturing costs of the displacement detection sensor. The displacement detection sensor is comprised of a light emitting device for emitting diffused light, a first lens for focusing the light emitted from the light emitting device on a recording paper sheet, a second lens for focusing the light reflected by the recording paper sheet and a light receiving device for receiving the light focused by the second lens.Type: ApplicationFiled: November 1, 2005Publication date: May 4, 2006Applicant: Funai Electric Co., Ltd.Inventors: Mikio Shoki, Ryuji Aoki, Toshiyuki Nakanishi, Yuichiro Itoh, Makoto Tsujinishi
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Publication number: 20050259275Abstract: In a digital multifunctional apparatus, at each clock input to a clock control circuit, an image processing circuit multiplies a length enlargement/reduction ratio output from a CPU by pixel numbers of an image read by an image sensor, in which the pixel numbers are counted from a starting pixel of the image reading, so as to calculate enlargement/reduction parameters for respective pixels. A pixel counter counts integer portion C of each enlargement/reduction parameter. When the integer portion C of the calculated enlargement parameter of a respective pixel increases by at least two from that of the preceding pixel, a pixel supplement circuit supplements one image data to enlarge the image data. On the other hand, when the counted integer portion C of the calculated reduction parameter of a respective pixel is unchanged from that of the preceding pixel, the image processing circuit removes the image data of the respective pixel to reduce the image data.Type: ApplicationFiled: May 10, 2005Publication date: November 24, 2005Applicant: Funai Electric Co., Ltd.Inventor: Mikio Shoki
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Publication number: 20050259285Abstract: A digital multifunctional apparatus enables to shorten a time lag between scanning of a document for taking an image data by an image sensor to printing an image on a paper sheet by a printing mechanism with reducing cost. An image processor constituted by a hardware circuit converts image data of three primary colors of additive color process of red, green and blue to image data of three primary colors of subtractive color process of cyan, magenta and yellow. The converted image data of each pixel is compared with predetermined threshold values and separately accumulated in one of a plurality of buffers corresponding to the result of comparison with the threshold value. The printing mechanism uses the image data accumulated in the buffers for printing a color image on a paper sheet.Type: ApplicationFiled: May 19, 2005Publication date: November 24, 2005Applicant: Funai Electric Co., Ltd.Inventor: Mikio Shoki
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Publication number: 20050254095Abstract: In a digital multifunctional apparatus, an image processing circuit which is configured by a hardware circuit compares a value of each image data of pixel with a predetermined threshold value so as to binarize the value of such image data, and calculates an error component, and further adds a product obtained by multiplying the error component and predetermined coefficient to an initial values of the image data of each pixel. By sequentially performing such binarization and addition with respect to each pixel, it is possible that while reading the image data of a document, the image processing circuit quickly performs the quasi-halftone processing to the image data without increasing burden of a CPU. Thus, the quasi-halftone processing can be achieved using an inexpensive CPU without using a DSP and expensive CPUs having high operating clock frequencies, thereby reducing cost of the digital multifunctional apparatus.Type: ApplicationFiled: May 10, 2005Publication date: November 17, 2005Applicant: Funai Electric Co., Ltd.Inventor: Mikio Shoki
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Patent number: 6360174Abstract: An ink level detecting apparatus comprises an ink cartridge, which is to be mounted in a printer, having an ID including cartridge type information and an identifying code, a fundamental data storing section for previously storing cartridge type information and ink capacity information associated therewith of ink cartridges which are to be mounted in the printer; a counting section for counting the number of ink dots jetted from the ink cartridge; an ink quantity storing section for storing residual ink quantities in ink cartridges mounted on the printer in association with identifying codes thereof; an ink quantity calculating section for reading the ID of the ink cartridge mounted in the printer to read out the residual ink quantity from the ink quantity storing section based on the identifying code in the ID, to read out the ink capacity from the fundamental data storing section based on the type information in the ID only when the residual ink quantity associated with the identifying code is absent in theType: GrantFiled: May 4, 1999Date of Patent: March 19, 2002Assignee: Funai Electric Co., Ltd.Inventor: Mikio Shoki
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Patent number: 6172764Abstract: An ink jet printer includes an MPU for outputting 1 byte of reverse data. This reverse data is loaded onto a reverse data register. Low nibble data in 4 bits is set to a data switch in response to a “state 1” control signal from a status control. Responsive to a “state 6” control signal, high nibble data in 4 bits is set to the data switch. Thus, the reverse data, configured by 8 bits in the “state 1” and “state 4”, is sent on a 4-bit basis to a host computer.Type: GrantFiled: March 16, 1998Date of Patent: January 9, 2001Assignee: Funai Electric Co., Ltd.Inventor: Mikio Shoki
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Patent number: 6071025Abstract: A printer system includes a printer on which color and monochromatic print cartridges are mounted, and a personal computer to output bit map data to the printer. The kinds of these ink cartridges are memorized as status information within a RAM so that the personal computer can detect a cartridge mounted position based on the status information. In the case that the color and/or monochromatic print cartridge is mounted incorrect, the personal computer detects an amount of a difference from a normal mount position to cause print data to shift depending upon the difference, thus creating bit map data.Type: GrantFiled: February 2, 1999Date of Patent: June 6, 2000Assignee: Funai Electric Co., Ltd.Inventor: Mikio Shoki