Patents Assigned to Canon Denshi Kabushiki Kaisha
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Patent number: 7905484Abstract: A sheet feeding apparatus capable of obtaining a sufficient conveying force for pulling back double-fed overlapping sheets to a stacking tray side. A sheet feeding member feeds sheets incoming from a stacking tray which stacks the sheets into a conveying pass. A separating member separates the sheets fed to the conveying pass by the sheet feeding member one by one. A double feed detection sensor generates an output for detecting double feed of sheets fed to the conveying pass. A rotatable member contacts the fed sheet. A driving unit rotationally drives at least the rotatable member in a rotational direction for reverse feeding of sheets. A control unit controls the driving unit when the double feed of sheets is detected based on the output of the double feed detection sensor, such that the rotatable member is rotationally driven in the rotational direction for reverse feeding of sheets.Type: GrantFiled: December 16, 2008Date of Patent: March 15, 2011Assignee: Canon Denshi Kabushiki KaishaInventor: Hiroshi Komuro
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Patent number: 7904572Abstract: An image processing apparatus which can be readily used by an authenticated user without laborsome setting even if the user uses the image processing apparatus for the first time through an authentication server. A user is authenticated with an authentication server connected to an image processing apparatus via a network. User unique setting information for the authenticated user is set, and the user unique setting information for each user is stored in user information storing areas. Initial setting information of initial setting of the image processing apparatus is stored in an initial setting information storing area. When the authenticated user uses the image processing apparatus for the first time, duplicate copy of the initial setting information stored in the initial setting information storing area is stored as the user unique setting information in the user information storing areas.Type: GrantFiled: November 2, 2007Date of Patent: March 8, 2011Assignee: Canon Denshi Kabushiki KaishaInventors: Shigeru Tadokoro, Satomi Yotsuyanagi
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Publication number: 20110043870Abstract: An information reading system comprising an information processing apparatus, a first information reading apparatus which is connected to the information processing apparatus and reads information on a sheet and a second information reading apparatus which is connectable to one of the information processing apparatus and the first information reading apparatus, and reads information on a sheet. The information processing apparatus comprises a control program including a first driver required to control the first information reading apparatus, and a second driver required to control the second information reading apparatus. Control information from the information processing apparatus to the second information reading apparatus is transmitted via the first driver and the second driver.Type: ApplicationFiled: August 3, 2010Publication date: February 24, 2011Applicant: CANON DENSHI KABUSHIKI KAISHAInventors: Hirotaka Watanabe, Taketo Ochiai, Ahimusa Uchida
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Publication number: 20110043873Abstract: There is provided an image reading apparatus and a control method therefor, which can suppress the influence of external light, and obtain an appropriate read image. To accomplish this, the image reading apparatus executes a Light-on reading processing for turning on an LED and causing a sensor to read an original document on a original platen at the first resolution, and a Light-off reading processing for turning off a light source and causing the sensor to read the original document on the original platen at the second resolution. In accordance with the influence of external light in an Light-off mode image read by the Light-off reading processing, the image reading apparatus removes the influence of external light in a Light-on mode image read by the Light-on reading processing.Type: ApplicationFiled: August 3, 2010Publication date: February 24, 2011Applicant: CANON DENSHI KABUSHIKI KAISHAInventor: Masaru Maruo
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Publication number: 20110038005Abstract: The present invention is applicable to a peripheral device which performs processing based on information from an information processing device. The peripheral device of present invention is characterized by a storage unit, which stores in it a program of controlling of designated processing, and stores in it data for controlling the peripheral device, and by a communication unit which sends the program stored in the storage unit to the information processing device, and by a control unit which controls operation of the peripheral device based on an instruction information written into the storage unit upon execution of the program on the information processing device.Type: ApplicationFiled: June 18, 2009Publication date: February 17, 2011Applicant: CANON DENSHI KABUSHIKI KAISHAInventors: Taketo Ochiai, Hirokazu Higuchi, Chihiro Hiranuma, Kiyoshi Ito
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Patent number: 7845637Abstract: Provided is a double feed detecting device, including: a first detecting unit which is disposed in a conveyance path of a sheet member, and detects overlapping of the sheet members which pass along the conveyance path; a second detecting unit having a light emitting unit and a light receiving unit which are opposed each other and disposed across the conveyance path, and detecting light which is irradiated from the light emitting unit and transmitted through the sheet member by the light receiving unit, and outputting a signal corresponding to a received light quantity; and a discriminating unit which discriminates the double feed when the first detecting unit detects the overlapping of the sheet members and an output signal of the second detecting unit is equal to or lower than a set double feed determination threshold value.Type: GrantFiled: October 10, 2007Date of Patent: December 7, 2010Assignee: Canon Denshi Kabushiki KaishaInventor: Tomoya Shimazaki
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Patent number: 7833432Abstract: A compression molding which is high in both dimensional accuracy and mechanical strength is difficult to manufacture by a powder molding process. Especially, a molding including a soft magnetic material with high soft magnetic properties is difficult to manufacture. A composite metal molding according to the present invention includes metal particles and the carbide of a resin intervening among the particles. It is manufactured by coating metal particles with a resin, molding the prepared molding material under pressure into a predetermined shape, and heating the prepared pressurized preform to calcine the resin and weld mutually the particles. The carbide of the resin has a weight ratio of 0.001 to 2% to the metal particles when the particles have their proportion expressed as 100. The particles have a weld ratio of 10 to 80%. The particles preferably contain a soft magnetic material and the resin is preferably a furan resin.Type: GrantFiled: October 10, 2006Date of Patent: November 16, 2010Assignee: Canon Denshi Kabushiki KaishaInventors: Junji Hamana, Isamu Kawada, Naoaki Maruyama
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Patent number: 7817317Abstract: An image reading apparatus capable of generating accurate shading correction data while removing noise. A shading reference plate is arranged at a location having different optical distance between the location and an image sensor in an image reading unit from optical distance between original reading position and said image sensor. The shading reference plate is read by the image reading unit whereby secondary reference data is acquired, and a reference sheet is read which is put on a position substantially identical to the original reading position whereby primary reference data is acquired. Primary and secondary correction data is generated based on the primary and secondary reference data, and correction coefficient data is generated based on the primary and secondary correction data. Shading correction data is generated based on read data of the shading reference plate and the correction coefficient data.Type: GrantFiled: February 22, 2008Date of Patent: October 19, 2010Assignee: Canon Denshi Kabushiki KaishaInventor: Yohei Ito
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Patent number: 7796310Abstract: An image reading apparatus capable of increasing the detection accuracy of the size of an original and eliminating the need for an image sensor dedicated to detection of the size of an original. A first reading unit has a first light source disposed on one side of a conveyance path of an original for emitting light to one surface of the original. A second reading unit has a second light source disposed on the other side of the conveyance path for emitting light to be received by the first reading unit, an optical opening for causing the light emitted from the second light source and subsequently received by the first reading unit to pass therethrough toward the first reading unit. The original is detected on the basis of the resultant output of the first reading unit upon receipt of the light emitted from the second light source.Type: GrantFiled: October 28, 2008Date of Patent: September 14, 2010Assignee: Canon Denshi Kabushiki KaishaInventors: Yoji Hasegawa, Minoru Sashida, Katsuhiko Okitsu
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Publication number: 20100221030Abstract: To provide a sheet material identifying apparatus for identifying the kind of a sheet material, including an adjusting assembly for dehumidifying or humidifying a predetermined region of the sheet material and adjusting the moisture content of the predetermined region, external force applying means for applying an external force to the predetermined region of the sheet material whose moisture content is adjusted and detecting means for detecting an external force propagated through the sheet while the external force is applied by the external force applying means; wherein an external force is applied to the predetermined region whose moisture content is adjusted through the adjusting assembly by the external force applying means and the kind of a sheet material is identified in accordance with the external force propagated through the sheet detected by the detecting means.Type: ApplicationFiled: June 10, 2004Publication date: September 2, 2010Applicants: CONON KABSHIKI KAISHA, CANON DENSHI KABUSHIKI KAISHAInventors: Takehiko Kawasaki, Norio Kaneko, Naoaki Maruyama
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Publication number: 20100158592Abstract: An original processing apparatus capable of enhancing original processing ability even in the case of continuously processing a plurality of originals. In a first processing unit of the original processing apparatus, MICR characters on an original conveyed along a conveying path are read and an image of a front side of the original is read. The original is then conveyed to a position short of a second processing unit, and the next original is fed to the conveying path. When control information including print information is created based on a result of the processing by the first processing unit, the original positioned short of the second processing unit is conveyed to the second processing unit where print information is printed on the original and an image of a back side of the original is read.Type: ApplicationFiled: December 23, 2009Publication date: June 24, 2010Applicant: CANON DENSHI KABUSHIKI KAISHAInventors: Masato Odagiri, Satoru Kitabayashi, Shigeru Ikezaki, Mitsuru Konishi
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Publication number: 20100157391Abstract: An image reading apparatus enabling a user to place originals on any of sheet feed trays without confirming requested orientation of the originals, either front facing or back facing. Image data of an original fed from a first sheet feed tray and read by a first reading unit is processed handling as image data of a front surface of the original, and image data of an original fed from the first sheet feed tray and read by a second reading unit is processed handling as image data of a back surface thereof. Image data of an original fed from a second sheet feed tray and read by the first reading unit is processed handling as image data of the back surface of the original, and image data of an original fed from the second sheet feed tray and read by the second reading unit is processed handling as image data of the front surface thereof.Type: ApplicationFiled: December 17, 2009Publication date: June 24, 2010Applicant: CANON DENSHI KABUSHIKI KAISHAInventor: Ayaka Sato
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Patent number: 7722034Abstract: A sheet discharge tray that can improve width direction alignment of discharged sheets of various sizes with a simple structure. Ribs are disposed on a sheet discharge tray. And a space between at least a pair of adjacent ribs among the ribs at a discharging direction upstream end portion is narrower than a space between the at least two adjacent ribs at a discharging direction downstream end portion.Type: GrantFiled: September 11, 2007Date of Patent: May 25, 2010Assignee: Canon Denshi Kabushiki KaishaInventors: Shigeru Kosuda, Jun Tanaka
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Patent number: 7724387Abstract: A scanner is provided with an image memory for storing therein image data read from an original by an image sensor, an image processing portion for effecting image processing on the image data, and a sending portion for sending the image data to an external equipment. The image processing portion is disposed in a route along which the image data is forwarded from the image memory to the sending portion, and the contents of the image processing by the image processing portion is made changeable over. The external equipment is provided with an image analyzing portion for obtaining first image data image-processed in a first image mode from the scanner and analyzing it, and detecting the state of the original (such as whether the original is a white sheet) from which the first image data has been read. On the basis of the result of the detection by the image analyzing portion, second image data image-processed in a second image mode is obtained from the scanner.Type: GrantFiled: March 22, 2005Date of Patent: May 25, 2010Assignee: Canon Denshi Kabushiki KaishaInventors: Taketo Ochiai, Kiyoyuki Kakinuma, Kazuo Otani
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Patent number: 7656562Abstract: The invention is related to an image reading apparatus which has a conveying unit which conveys an original (D), a first reading unit including a first reading section which reads one side of the original (D) conveyed by the conveying unit, a second reading unit (12) including a second reading section which reads the other side of the original conveyed by the conveying unit; and a moving mechanism (30) which displaces relative positions of the first reading unit and the second reading unit in an original conveyance direction by using driving force of a motor for driving the conveying unit.Type: GrantFiled: February 28, 2006Date of Patent: February 2, 2010Assignee: Canon Denshi Kabushiki KaishaInventor: Takashi Machida
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Patent number: 7651283Abstract: This invention prevents a degradation in image quality resulting from undesirable reflected light and undesirable transmitted light generated near the ridgeline of the edge portion of an optical element including an aperture blade or an ND filter. The aperture edge of the aperture blade cooperates with the aperture edge of another aperture blade to form an almost rhombic aperture. A small saw-toothed and non-periodic uneven portions having various sizes are formed along two, front and rear ridgelines of the aperture edge and along those of the ND filter. When incident light beams strike the aperture edge of the aperture blade or the edge of ND filter, the uneven portions formed at the ridgeline reflect them in various directions.Type: GrantFiled: December 14, 2006Date of Patent: January 26, 2010Assignee: Canon Denshi Kabushiki KaishaInventors: Yasunori Saito, Hitoshi Nozue
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Publication number: 20090240796Abstract: A management server which is connected to a plurality of client terminals via a network, includes a storage unit adapted to store a management policy including usage-permitted time periods of the plurality of client terminals, and an application unit adapted to read out from the storage unit the management policy including the usage-permitted time period of the client terminal to be managed, output the readout management policy to the client terminal, and apply the usage-permitted time period to the client terminal, and extends the usage-permitted time period of the client terminal in accordance with a state of the client terminal.Type: ApplicationFiled: June 8, 2009Publication date: September 24, 2009Applicant: CANON DENSHI KABUSHIKI KAISHAInventors: Takakazu YOKOYAMA, Hiroki MIURA, Shinsaku KITA, Jyunya EMAE, Kouzou MIKAMI, Satoshi YONEKAWA
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Publication number: 20090160119Abstract: A sheet feeding apparatus capable of obtaining a sufficient conveying force for pulling back double-fed overlapping sheets to a stacking tray side. A sheet feeding member feeds sheets incoming from a stacking tray which stacks the sheets into a conveying pass. A separating member separates the sheets fed to the conveying pass by the sheet feeding member one by one. A double feed detection sensor generates an output for detecting double feed of sheets fed to the conveying pass. A rotatable member contacts the fed sheet. A driving unit rotationally drives at least the rotatable member in a rotational direction for reverse feeding of sheets. A control unit controls the driving unit when the double feed of sheets is detected based on the output of the double feed detection sensor, such that the rotatable member is rotationally driven in the rotational direction for reverse feeding of sheets.Type: ApplicationFiled: December 16, 2008Publication date: June 25, 2009Applicant: CANON DENSHI KABUSHIKI KAISHAInventor: Hiroshi KOMURO
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Patent number: D622272Type: GrantFiled: October 28, 2009Date of Patent: August 24, 2010Assignee: Canon Denshi Kabushiki KaishaInventors: Takashi Machida, Minoru Nishizawa, Kanehiro Yoshida
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Patent number: D631479Type: GrantFiled: December 4, 2009Date of Patent: January 25, 2011Assignee: Canon Denshi Kabushiki KaishaInventors: Hiroshi Komuro, Tetsurou Ishikawa, Teruhiko Kitamura