Patents by Inventor Tsutomu Usui
Tsutomu Usui 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: 10979683Abstract: A white balance adjustment device includes a statistics acquisition portion and a correction portion. The statistics acquisition portion includes an area setting portion including a luminance area setting portion configured to set a plurality of luminance ranges, and an average value calculation portion configured to calculate an average value of color difference values of the image signal in each of the plurality of luminance ranges set by the luminance area setting portion. The correction portion includes a correction function determination portion configured to determine a correction function of the color difference values of the image signal based on the average value of the color difference values calculated by the average value calculation portion, and a color difference correction portion configured to correct the color difference values of the image signal based on the correction function determined by the correction function determination portion.Type: GrantFiled: December 26, 2018Date of Patent: April 13, 2021Assignee: Clarion Co., Ltd.Inventors: Takayuki Negishi, Hitoshi Takagi, Hiromasa Shinsha, Satoshi Ikegaya, Tsutomu Usui, Norihiko Nakano
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Publication number: 20200374500Abstract: A white balance adjustment device includes a statistics acquisition portion and a correction portion. The statistics acquisition portion includes an area setting portion including a luminance area setting portion configured to set a plurality of luminance ranges, and an average value calculation portion configured to calculate an average value of color difference values of the image signal in each of the plurality of luminance ranges set by the luminance area setting portion. The correction portion includes a correction function determination portion configured to determine a correction function of the color difference values of the image signal based on the average value of the color difference values calculated by the average value calculation portion, and a color difference correction portion configured to correct the color difference values of the image signal based on the correction function determined by the correction function determination portion.Type: ApplicationFiled: December 26, 2018Publication date: November 26, 2020Inventors: Takayuki NEGISHI, Hitoshi TAKAGI, Hiromasa SHINSHA, Satoshi IKEGAYA, Tsutomu USUI, Norihiko NAKANO
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Patent number: 10356376Abstract: In a vehicle-mounted camera system, an appropriate white balance correction processing according to a situation is executed to a long exposure time image and a short exposure time image shot in variously changing illumination environments. A vehicle-mounted camera system includes a vehicle-mounted camera that performs relatively long exposure time shooting and short exposure time shooting, a signal processing device (signal processing device) that executes a white balance correction processing for each of a long exposure time image and a short exposure time image, composes these images after the white balance correction processing, and generates a high dynamic range image, and a system control part (processing switch device) that obtains an illumination environment in which the vehicle is placed, and switches the white balance correction processing for the long exposure time image and the white balance correction processing for the short exposure time image according to the illumination environment.Type: GrantFiled: September 24, 2015Date of Patent: July 16, 2019Assignee: CLARION CO., LTD.Inventors: Tsutomu Usui, Norihiko Nakano, Takahide Kojima
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Patent number: 9872004Abstract: Provided is an on-vehicle imaging device installed onboard a vehicle, and equipped with: an imaging unit for capturing an image of a subject, and having sensitivity to at least to the entire visible light spectrum of the red range (R), the green range (G), and the blue range (B), and to the infrared range (Cir); a signal processing unit for carrying out signal processing on video signals of at least a plurality of different bandwidths from a video image captured by the imaging unit; a pixel signal distribution processing unit for extracting pixel signal distribution information of one or more signals among video signals processed by the signal processing unit; a white balance processing unit for performing signal processing using a predetermined gain, so as to bring a video signal to a desired value; and a system control unit for performing control of the white balance processing unit and control of assessment area information for the purpose of extraction of pixel signal distribution information by the pixelType: GrantFiled: July 18, 2013Date of Patent: January 16, 2018Assignee: Clarion Co., Ltd.Inventors: Tsutomu Usui, Teruki Takahashi, Daisuke Yoshida
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Publication number: 20170339385Abstract: In a vehicle-mounted camera system, an appropriate white balance correction processing according to a situation is executed to a long exposure time image and a short exposure time image shot in variously changing illumination environments. A vehicle-mounted camera system includes a vehicle-mounted camera that performs relatively long exposure time shooting and short exposure time shooting, a signal processing device (signal processing device) that executes a white balance correction processing for each of a long exposure time image and a short exposure time image, composes these images after the white balance correction processing, and generates a high dynamic range image, and a system control part (processing switch device) that obtains an illumination environment in which the vehicle is placed, and switches the white balance correction processing for the long exposure time image and the white balance correction processing for the short exposure time image according to the illumination environment.Type: ApplicationFiled: September 24, 2015Publication date: November 23, 2017Inventors: Tsutomu USUI, Norihiko NAKANO, Takahide KOJIMA
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Patent number: 9723282Abstract: An in-vehicle imaging device is provided with a detection region setting unit for setting a detection region, which corresponds to a predetermined object to be detected within an imaging screen; a color signal determination unit for setting a specific color corresponding to the object to be detected, and for determining whether the color data of pixels contained in the detection region are close to the specific color; and a gain control unit for averaging the color data of pixels (approximate color pixels) that were determined to be close to the specific color within the detection region and for adjusting the color gain of the image signal on the basis of a differential value of the color data of the specific color and the average value of the color data of the approximate color pixels.Type: GrantFiled: June 26, 2013Date of Patent: August 1, 2017Assignee: Clarion Co., Ltd.Inventors: Tsutomu Usui, Hirotomo Sai
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Publication number: 20150326840Abstract: Provided is an on-vehicle imaging device installed onboard a vehicle, and equipped with: an imaging unit for capturing an image of a subject, and having sensitivity to at least to the entire visible light spectrum of the red range (R), the green range (G), and the blue range (B), and to the infrared range (Cir); a signal processing unit for carrying out signal processing on video signals of at least a plurality of different bandwidths from a video image captured by the imaging unit; a pixel signal distribution processing unit for extracting pixel signal distribution information of one or more signals among video signals processed by the signal processing unit; a white balance processing unit for performing signal processing using a predetermined gain, so as to bring a video signal to a desired value; and a system control unit for performing control of the white balance processing unit and control of assessment area information for the purpose of extraction of pixel signal distribution information by the pixelType: ApplicationFiled: July 18, 2013Publication date: November 12, 2015Inventors: Tsutomu USUI, Teruki TAKAHASHI, Daisuke YOSHIDA
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Publication number: 20150312541Abstract: An image pickup device includes an image pickup section that picks up an image and is sensitive to at least the red, green, and blue ranges of visible light, and the infrared range; an extraction region processing section that sets regions in an image picked up by the image pickup section; an infrared extraction processing section that extracts infrared range signal information from the regions that were set by the extraction region processing section; a visible light extraction processing section that extracts visible light range signal information from the regions that were set by the extraction range processing section; a white balance processing section that conducts white balance processing on the image using a prescribed color gain; and a system control section that controls the white balance processing section. The system control section performs control so that the color gain of the white balance processing section is a prescribed value.Type: ApplicationFiled: November 26, 2013Publication date: October 29, 2015Applicant: Clarion Co., Ltd.Inventors: Tsutomu USUI, Teruki TAKAHASHI, Daisuke YOSHIDA
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Publication number: 20150195500Abstract: An in-vehicle imaging device is provided with a detection region setting unit for setting a detection region, which corresponds to a predetermined object to be detected within an imaging screen; a color signal determination unit for setting a specific color corresponding to the object to be detected, and for determining whether the color data of pixels contained in the detection region are close to the specific color; and a gain control unit for averaging the color data of pixels (approximate color pixels) that were determined to be close to the specific color within the detection region and for adjusting the color gain of the image signal on the basis of a differential value of the color data of the specific color and the average value of the color data of the approximate color pixels.Type: ApplicationFiled: June 26, 2013Publication date: July 9, 2015Inventors: Tsutomu Usui, Hirotomo Sai
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Patent number: 8989555Abstract: When video data is reproduced by a recording/reproduction unit, an output unit outputs occurrence information on an object, which is not included in the video data being output by the output unit but is included the video data recorded on a recording medium, to a display unit. While the video data is being reproduced from the recording medium by the recording/reproduction unit, an instruction specifying a predetermined object condition including a non-reproduction object is input based on the occurrence information and the reproduction operation is performed by extracting video data satisfying the object condition.Type: GrantFiled: April 27, 2009Date of Patent: March 24, 2015Assignee: Hitachi Maxell, Ltd.Inventors: Haruhiko Higuchi, Hiromi Nishiura, Tsutomu Usui
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Patent number: 8817727Abstract: An on-board wireless communication apparatus using an OFDMA scheme includes: a position information acquisition unit which estimates a position after a predetermined time period based on base station position information, mobile station position information, and speed information of mobile station as estimated mobile station position information; a transmission path information storage unit which determines a transmission rate to be applied based on the estimated position information and a distribution of the transmission rate determined by a distance from the base station; a reception buffer unit which stores received data; a reception buffer amount adjustment unit which determines a data amount to be received based on a data storage amount from the buffer unit and a type of the data therein; and a band allocation unit which determines a band requested to the base station by the transmission rate from the storage unit and the data amount from the adjustment unit.Type: GrantFiled: October 13, 2009Date of Patent: August 26, 2014Assignee: Mitsubishi Electric CorporationInventor: Tsutomu Usui
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Patent number: 8681242Abstract: An image signal processing system according to the present invention has a function to perform image quality control in photographing a subject having a large difference in brightness in the surrounding environment so that the entire photographed image, in particular a subject which a user desires to view, has an adequate brightness and an adequate gradation. Specifically, this image signal processing system comprises: a video input unit, a video signal processing unit for performing signal processing on a signal output from the video input unit, and generating a video signal; an input-output characteristic control unit for controlling a characteristic of the video signal which the video signal processing unit generates; and a subject recognition unit for performing image processing on the video signal which the video signal processing unit generates, and recognizing and detecting subject information.Type: GrantFiled: June 3, 2011Date of Patent: March 25, 2014Assignee: Hitachi, Ltd.Inventors: Mari Ohbuchi, Hirotomo Sai, Tsutomu Usui, Shinichiro Hirooka
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Patent number: 8319848Abstract: An imaging apparatus includes an imaging unit that receives image data in response to a photographic subject, a face detection unit that detects a human face from the received image data, a photometry unit that performs a photometry of the detected human face, an exposure control unit that calculates a target exposure amount in accordance with a photometry result to calculate an exposure control value, and an exposure correction control unit that determines an exposure in response to the target exposure amount, wherein an exposure correction unit performs an exposure correction by using an exposure target determined by the exposure correction control unit, as an area smaller than a domain of the human face detected by the face detection unit is set to the photometry area.Type: GrantFiled: November 18, 2009Date of Patent: November 27, 2012Assignee: Hitachi Consumer Electronics Co., Ltd.Inventors: Tsutomu Usui, Haruhiko Higuchi, Haruhiko Miyao
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Patent number: 8223703Abstract: A scheduling method in which a communication apparatus communicates data with a plurality of users by preferentially allocating a data sequence to a default subchannel segment that is different from another-cell allocation subchannel segment. As many data sequences as can be allocated to the default subchannel segment are selected and the selected data sequences allocated to the default subchannel segment. In downlink scheduling, the data sequences are selected in order from a data sequence subjected to a maximum level of interference from an adjacent base station. In uplink scheduling, the data sequences are selected in order from a data sequence that causes a maximum level of interference to the adjacent base station because of data communication. A data sequence not allocated to the default subchannel segment is allocated to the other-cell allocation subchannel segment when allocation of all the data sequences to the default subchannel segment fails.Type: GrantFiled: May 26, 2006Date of Patent: July 17, 2012Assignee: Mitsubishi Electric CorporationInventor: Tsutomu Usui
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Patent number: 8223599Abstract: Provided is a recording/reproduction apparatus capable of securing a backup area for management information on a recording medium without affecting the capacity of a user data area. Before a hard disk drive or a disc medium (recording medium) is finalized, metadata is recorded in a metadata area and when the hard disk drive or the disc medium are finalized, a user data area portion corresponding to the volume of metadata required for the finalizing is set as a metadata mirror area and then the metadata recorded in the metadata area is copied to the metadata mirror area.Type: GrantFiled: March 28, 2008Date of Patent: July 17, 2012Assignee: Hitachi, Ltd.Inventors: Akinobu Watanabe, Tsutomu Usui, Hiroyuki Marumori, Toshihiro Kato
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Publication number: 20120127947Abstract: An on-board wireless communication apparatus using an OFDMA scheme includes: a position information acquisition unit which estimates a position after a predetermined time period based on base station position information, mobile station position information, and speed information of mobile station as estimated mobile station position information; a transmission path information storage unit which determines a transmission rate to be applied based on the estimated position information and a distribution of the transmission rate determined by a distance from the base station; a reception buffer unit which stores received data; a reception buffer amount adjustment unit which determines a data amount to be received based on a data storage amount from the buffer unit and a type of the data therein; and a band allocation unit which determines a band requested to the base station by the transmission rate from the storage unit and the data amount from the adjustment unit.Type: ApplicationFiled: October 13, 2009Publication date: May 24, 2012Inventor: Tsutomu Usui
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Publication number: 20110317030Abstract: An image signal processing system according to the present invention has a function to perform image quality control in photographing a subject having a large difference in brightness in the surrounding environment so that the entire photographed image, in particular a subject which a user desires to view, has an adequate brightness and an adequate gradation. Specifically, this image signal processing system comprises: a video input unit, a video signal processing unit for performing signal processing on a signal output from the video input unit, and generating a video signal; an input-output characteristic control unit for controlling a characteristic of the video signal which the video signal processing unit generates; and a subject recognition unit for performing image processing on the video signal which the video signal processing unit generates, and recognizing and detecting subject information.Type: ApplicationFiled: June 3, 2011Publication date: December 29, 2011Inventors: Mari OHBUCHI, Hirotomo Sai, Tsutomu Usui, Shinichiro Hirooka
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Patent number: 8040410Abstract: A camera capable of compensating for facial field of a person to a proper brightness, and maintaining the luminance scale of the background, comprising an imaging portion for generating the picture data of the person; a gamma compensator for performing gamma compensation for the picture data; a facial field detecting portion for detecting a facial field from the picture data; a photometric portion for exposure metering value of the facial field detected by the facial field detecting portion; an exposure controlling portion for calculating a target exposure amount in response to the output of the photometric portion and controlling exposure depending on the target exposure amount; and a gamma compensation controlling portion for determining a luminance scale characteristic in accordance with the target exposure amount, wherein the gamma compensating portion is controlled on the basis of the luminance scale characteristic determined by the gamma compensation controlling portion.Type: GrantFiled: April 27, 2009Date of Patent: October 18, 2011Assignee: Hitachi, Ltd.Inventors: Yuko Arai, Haruhiko Miyao, Tsutomu Usui, Haruhiko Higuchi
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Patent number: 8005340Abstract: Related arts have failed to realize a data recording/reproducing apparatus having the ability to, while video-audio data is being recorded in a first recording medium, notify a user of the number of second recording media to which the recorded video-audio data is equivalent. For breaking through the situation, a data recording/reproducing apparatus in accordance with the present invention includes a module which monitors an amount of video-audio data recorded in a first recording medium, and a module which displays an equivalent of the amount of recorded video-audio data in terms of the capacity of a second recording medium.Type: GrantFiled: September 6, 2007Date of Patent: August 23, 2011Assignee: Hitachi, Ltd.Inventors: Nozomu Shimoda, Tsutomu Usui
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Patent number: 7847816Abstract: In an imaging apparatus having two imaging devices, a converter module which synthesizes the two signals of each horizontal line produced from the two imaging devices to thereby convert the two signals into a single composite signal, a line memory which cooperates with the converter module to convert the signals, a line delay module which accumulates the output signals from the converter module, a line memory which cooperates with the line delay module to accumulate the signals, an exposure controller, an auto focus controller, a white balance controller, a color signal processor module, a luminance signal processor module, and an arithmetic processor module for stereo imaging process, the output signals from the plurality of imaging devices are converted to the single composite signal and processed on a one-channel processing basis.Type: GrantFiled: April 25, 2005Date of Patent: December 7, 2010Assignee: Hitachi, Ltd.Inventors: Tsutomu Usui, Norihiko Nakano, Junji Kamimura