Patents by Inventor Hiroyuki Hosogoshi
Hiroyuki Hosogoshi 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: 10554844Abstract: An image scanning apparatus determines whether there is an influence of external light from the outside of the image scanning apparatus on scanning; decides a correction value corresponding to each of a plurality of sensors based on received light amounts of at least some of the plurality of sensors; and corrects, using the correction value corresponding to each of the plurality of sensors and decided, data corresponding to a received light amount of each of the plurality of sensors when scanning the original, wherein if it is determined that there is the influence of the external light, the image scanning apparatus decides the correction value corresponding to a first sensor and the correction value corresponding to a second sensor arranged at a position that is readily influenced by the external light based on the received light amount of the first sensor.Type: GrantFiled: February 20, 2019Date of Patent: February 4, 2020Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Hosogoshi, Miho Funabashi, Norikazu Honda, Masataka Iura, Yuichi Yanagiwara
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Publication number: 20190281179Abstract: An image scanning apparatus determines whether there is an influence of external light from the outside of the image scanning apparatus on scanning; decides a correction value corresponding to each of a plurality of sensors based on received light amounts of at least some of the plurality of sensors; and corrects, using the correction value corresponding to each of the plurality of sensors and decided, data corresponding to a received light amount of each of the plurality of sensors when scanning the original, wherein if it is determined that there is the influence of the external light, the image scanning apparatus decides the correction value corresponding to a first sensor and the correction value corresponding to a second sensor arranged at a position that is readily influenced by the external light based on the received light amount of the first sensor.Type: ApplicationFiled: February 20, 2019Publication date: September 12, 2019Inventors: Hiroyuki Hosogoshi, Miho Funabashi, Norikazu Honda, Masataka Iura, Yuichi Yanagiwara
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Patent number: 9467709Abstract: A data decoding device is provided that can decode, at high speed and with low cost, image data encoded at a high compression rate. Provided are an input unit to be input a first encoded data, a second encoded data, the second encoded data and reference data of the line image data; an acquisition unit to acquire, a first reference data to decode the first encoded data to the higher-end data and a second reference data to decode the second encoded data to the lower-end data; a decoding unit to decode the second encoded data to the lower-end data on the basis of the second reference data while the first encoded data is decoded to the higher-end data on the basis of the first reference data and; and a combining means to combine the higher-end data and the lower-end data that were decoded by the decoding unit.Type: GrantFiled: April 4, 2012Date of Patent: October 11, 2016Assignee: Canon Kabushiki KaishaInventors: Shigeru Fujita, Hiroki Horikoshi, Hiroyuki Hosogoshi
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Patent number: 8345291Abstract: An apparatus includes a connection unit configured to connect to a network, a switching unit configured to switch a communication speed when data communication is performed via the connection unit, and a limitation unit configured to limit switching of the communication speed to set a fixed communication speed when a connection form of the network is a specific connection form.Type: GrantFiled: May 6, 2010Date of Patent: January 1, 2013Assignee: Canon Kabushiki KaishaInventor: Hiroyuki Hosogoshi
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Publication number: 20120257837Abstract: A data decoding device is provided that can decode, at high speed and with low cost, image data encoded at a high compression rate. Provided are an input unit to be input a first encoded data, a second encoded data, the second encoded data and reference data of the line image data; an acquisition unit to acquire, a first reference data to decode the first encoded data to the higher-end data and a second reference data to decode the second encoded data to the lower-end data; a decoding unit to decode the second encoded data to the lower-end data on the basis of the second reference data while the first encoded data is decoded to the higher-end data on the basis of the first reference data and; and a combining means to combine the higher-end data and the lower-end data that were decoded by the decoding unit.Type: ApplicationFiled: April 4, 2012Publication date: October 11, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Shigeru Fujita, Hiroki Horikoshi, Hiroyuki Hosogoshi
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Patent number: 8238600Abstract: An electronic watermark embedding apparatus and an electronic watermark embedding method can severally deal with both of the resistance property of an electronic watermark and the prevention of image quality deterioration. Electronic watermark information of a high importance level is embedded in a component having a strong resistance property, and electronic watermark information of a low importance level is embedded in a component exerting little influence on an image quality. As a result, the electronic watermark information to be embedded in the component having a strong resistance property is limited to that of a high importance level. Moreover, the image quality deterioration can be suppressed in comparison with the case of embedding all pieces of information, and the electronic watermark information of low importance level is embedded in the component having a weak resistance property but exerting little influence on an image quality.Type: GrantFiled: September 18, 2008Date of Patent: August 7, 2012Assignee: Canon Kabushiki KaishaInventors: Takeshi Kuga, Shigeru Fujita, Hiroki Horikoshi, Akira Ichimura, Hideki Takemura, Hiroyuki Hosogoshi
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Patent number: 7940427Abstract: An image processing apparatus, a printing apparatus and an image processing method are provided which can perform quantization processing on image data at high speed based on an error diffusion method while at the same time avoiding degradations in a quality of printed images. When the error value represented by the error data is equal to or less than the reference value, at least a part of the data portion that can represent an error value in excess of the reference value is eliminated to compress the error data.Type: GrantFiled: November 30, 2007Date of Patent: May 10, 2011Assignee: Canon Kabushiki KaishaInventors: Hideki Takemura, Hiroki Horikoshi, Shigeru Fujita, Akira Ichimura, Takeshi Kuga, Hiroyuki Hosogoshi
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Patent number: 7884969Abstract: An image processing apparatus, a printing apparatus and an image processing method are provided which can perform quantization processing on image data at high speed based on an error diffusion method while at the same time avoiding degradations in a quality of printed images. When an error value represented by error data is a particular value, the error data is converted into compressed error data with a data volume less than that of the original error data.Type: GrantFiled: December 3, 2007Date of Patent: February 8, 2011Assignee: Canon Kabushiki KaishaInventors: Hideki Takemura, Shigeru Fujita, Hiroki Horikoshi, Akira Ichimura, Takeshi Kuga, Hiroyuki Hosogoshi
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Publication number: 20100284038Abstract: An apparatus includes a connection unit configured to connect to a network, a switching unit configured to switch a communication speed when data communication is performed via the connection unit, and a limitation unit configured to limit switching of the communication speed to set a fixed communication speed when a connection form of the network is a specific connection form.Type: ApplicationFiled: May 6, 2010Publication date: November 11, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Hiroyuki Hosogoshi
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Publication number: 20090080693Abstract: An electronic watermark embedding apparatus and an electronic watermark embedding method can severally deal with both of the resistance property of an electronic watermark and the prevention of image quality deterioration. Electronic watermark information of a high importance level is embedded in a component having a strong resistance property, and electronic watermark information of a low importance level is embedded in a component exerting little influence on an image quality. As a result, the electronic watermark information to be embedded in the component having a strong resistance property is limited to that of a high importance level. Moreover, the image quality deterioration can be suppressed in comparison with the case of embedding all pieces of information, and the electronic watermark information of low importance level is embedded in the component having a weak resistance property but exerting little influence on an image quality.Type: ApplicationFiled: September 18, 2008Publication date: March 26, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Takeshi Kuga, Shigeru Fujita, Hiroki Horikoshi, Akira Ichimura, Hideki Takemura, Hiroyuki Hosogoshi
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Publication number: 20080285084Abstract: An image processing apparatus, a printing apparatus and an image processing method are provided which can perform quantization processing on image data at high speed based on an error diffusion method while at the same time avoiding degradations in a quality of printed images. When an error value represented by error data is a particular value, the error data is converted into compressed error data with a data volume less than that of the original error data.Type: ApplicationFiled: December 3, 2007Publication date: November 20, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Hideki Takemura, Shigeru Fujita, Hiroki Horikoshi, Akira Ichimura, Takeshi Kuga, Hiroyuki Hosogoshi
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Publication number: 20080137145Abstract: An image processing apparatus, a printing apparatus and an image processing method are provided which can perform quantization processing on image data at high speed based on an error diffusion method while at the same time avoiding degradations in a quality of printed images. When the error value represented by the error data is equal to or less than the reference value, at least a part of the data portion that can represent an error value in excess of the reference value is eliminated to compress the error data.Type: ApplicationFiled: November 30, 2007Publication date: June 12, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Hideki Takemura, Hiroki Horikoshi, Shigeru Fujita, Akira Ichimura, Takeshi Kuga, Hiroyuki Hosogoshi
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Publication number: 20080013131Abstract: The invention is to provide an image forming apparatus, for printing an image based on image data, capable of deleting data unnecessary for the user, thereby effectively utilizing limited memory area. The invention provides an image forming apparatus for printing an image based on image data, including a memory unit for memorizing the image data; a determination unit for determining a category of the image data; and a selection unit for selecting whether to erase or to store the image data after being printed, according to a result of determination by the determination unit.Type: ApplicationFiled: July 9, 2007Publication date: January 17, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Hiroyuki Hosogoshi, Shigeru Fujita, Hiroki Horikoshi, Akira Ichimura, Hideki Takemura, Takeshi Kuga
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Publication number: 20070297014Abstract: There is provided an image processing system in which a management server, a host computer, and a printer are connected via a network, and said host computer prints image data received from said management server based on a printing parameter indicating a printing condition set by a user using said printer, wherein said host computer receives image data appended with a visible digital watermark from said management server, detects a printing parameter set in said printer, collates the detected printing parameter with a limited parameter which is set in advance for the image data, and removes the visible digital watermark from the image data in accordance with the collation result.Type: ApplicationFiled: June 15, 2007Publication date: December 27, 2007Inventors: Takeshi Kuga, Shigeru Fujita, Hiroki Horikoshi, Akira Ichimura, Hideki Takemura, Hiroyuki Hosogoshi