Patents by Inventor Isao Otsuka
Isao Otsuka 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: 9982898Abstract: An indoor unit includes a casing having a suction port formed in an upper part and a blow-out port formed on a lower side at a front face part, an axial-flow or diagonal-flow fan provided on the downstream side of the suction port in the casing, and a heat exchanger provided on the downstream side of the fan and on the upstream side of the blow-out port in the casing, in which air blown out of the fan and refrigerant are heat-exchanged.Type: GrantFiled: October 2, 2009Date of Patent: May 29, 2018Assignee: Mitsubishi Electric CorporationInventors: Shoji Yamada, Kenichi Sakoda, Masao Akiyoshi, Akira Takamori, Nobuaki Uehara, Tomoya Fukui, Seiji Nakashima, Naoki Iwamoto, Satoshi Michihata, Isao Otsuka, Masayuki Tsuji
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Patent number: 9619873Abstract: An image processing device includes: a calculator that calculates a gray scale histogram for each color component of an image signal; a calculator that calculates, for each color component, a maximum and a minimum of classes having a frequency greater than zero in the gray scale histogram; a determiner that generates, for each color component, a histogram having classes each having an absolute difference value between the frequencies of adjacent classes in the gray scale histogram, and compares the absolute difference values in the histograms with a value to determine, from the presence or absence of an absolute difference value exceeding the value, an image type of the image; a generator that generates a gray scale correction curve from the calculated maximum and minimum for each color component; and a corrector that performs gray scale correction on the image signal using the gray scale correction curve.Type: GrantFiled: October 21, 2013Date of Patent: April 11, 2017Assignee: Mitsubishi Electric CorporationInventors: Yuka Tsuda, Nobuhiko Yamagishi, Toshiyuki Shimizu, Takashi Hatakenaka, Junko Shinohara, Hironobu Yasui, Tomonori Fukuta, Isao Otsuka, Yoshiaki Kato
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Patent number: 9449375Abstract: In an image processing apparatus, maximum values and minimum values of the classes of respective color components are calculated; the largest value among the maximum values of the color components is found as an all-color maximum value, color correction curves are generated, on the basis of the maximum and minimum values of the respective color components and the all-color maximum value, for color components other than the color component whose maximum value is equal to the all-color maximum value, and the color correction curves are used to perform corrections on the respective color components of the image signal. The color correction curves are generated for performing corrections such that, after the corrections, the maximum value of each color component is approximately equal to the all-color maximum value.Type: GrantFiled: October 23, 2013Date of Patent: September 20, 2016Assignee: Mitsubishi Electric CorporationInventors: Yuka Tsuda, Nobuhiko Yamagishi, Tomonori Fukuta, Isao Otsuka
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Publication number: 20150339808Abstract: In an image processing apparatus, maximum values and minimum values of the classes of respective color components are calculated; the largest value among the maximum values of the color components is found as an all-color maximum value, color correction curves are generated, on the basis of the maximum and minimum values of the respective color components and the all-color maximum value, for color components other than the color component whose maximum value is equal to the all-color maximum value, and the color correction curves are used to perform corrections on the respective color components of the image signal. The color correction curves are generated for performing corrections such that, after the corrections, the maximum value of each color component is approximately equal to the all-color maximum value.Type: ApplicationFiled: October 23, 2013Publication date: November 26, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuka TSUDA, Nobuhiko YAMAGISHI, Tomonori FUKUTA, Isao OTSUKA
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Publication number: 20150332444Abstract: An image processing device includes: a calculator that calculates a gray scale histogram for each color component of an image signal; a calculator that calculates, for each color component, a maximum and a minimum of classes having a frequency greater than zero in the gray scale histogram; a determiner that generates, for each color component, a histogram having classes each having an absolute difference value between the frequencies of adjacent classes in the gray scale histogram, and compares the absolute difference values in the histograms with a value to determine, from the presence or absence of an absolute difference value exceeding the value, an image type of the image; a generator that generates a gray scale correction curve from the calculated maximum and minimum for each color component; and a corrector that performs gray scale correction on the image signal using the gray scale correction curve.Type: ApplicationFiled: October 21, 2013Publication date: November 19, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuka TSUDA, Nobuhiko YAMAGISHI, Toshiyuki SHIMIZU, Takashi HATAKENAKA, Junko SHINOHARA, Hironobu YASUI, Tomonori FUKUTA, Isao OTSUKA, Yoshiaki KATO
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Patent number: 8886014Abstract: There are provided with a video recording apparatus and a scene change extraction method, by which a scene change can be extracted from a video while recording the video. The video recording apparatus 100 includes an encoder 101 for encoding video data PIN, an HDD 105 for storing an encoded stream outputted from the encoder 101, a stream controller 103 for transferring the encoded stream outputted from the encoder 101 to the HDD 105, a scene change extractor 110 for decoding the encoded stream outputted from the encoder 101 and extracting a scene change in the decoded video data, and a recording controller 102 for receiving an encoding-completion notification IEN on a unit-of-encoding basis of the encoded stream from the encoder 101 and outputting a scene change extraction instruction CSC to the scene change extractor 110.Type: GrantFiled: March 17, 2006Date of Patent: November 11, 2014Assignee: Mitsubishi Electric CorporationInventors: Yoshiaki Kusunoki, Isao Otsuka
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Patent number: 8855796Abstract: The present invention is to provide a method of efficiently detecting music scenes from television broadcasts. A music-segment detection method according to the present invention includes a data input step of inputting data including an audio and video signals; a plurality of candidate-music-segment detection steps of detecting candidate music-segments from the audio signal based on criteria different from each other; and a music-segment detection step of detecting a music segment based on the plurality of detected candidate music-segments. Thereby, high detection accuracy can be ensured for a wide variety of music with various tones, such as rock, popular ballad, and classic.Type: GrantFiled: December 25, 2006Date of Patent: October 7, 2014Assignee: Mitsubishi Electric CorporationInventors: Isao Otsuka, Hidetsugu Suginohara
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Patent number: 8682132Abstract: [Problem] The present invention provides a method of detecting a music scene with a high accuracy from a television broadcast. [Means for solution] The music-segment detection method provided with a data input step of inputting data including an audio signal and a video signal; a plurality of candidate-music-segment detection steps of detecting, from the audio signal, respective candidate music-segments in the input data, based on criteria different from each other; a change-point detection step of detecting a change point in the input data, based on a distinctive change in the audio signal and/or on a distinctive change in a video signal; and a music-segment detection step of detecting a music segment, based on the plurality of detected candidate-music-segments and on the detected change point.Type: GrantFiled: January 9, 2007Date of Patent: March 25, 2014Assignee: Mitsubishi Electric CorporationInventors: Hidetsugu Suginohara, Isao Otsuka
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Patent number: 8681099Abstract: When a vehicle navigation system is manipulated by taking pictures of a user hand motion and gesture with a camera, as the number of apparatuses and operational objects increases, the associated hand shapes and hand motions increase, thus causing a complex manipulation for a user. Furthermore, in detecting a hand with the camera, when the image of a face having color tone information similar to that of a hand appears in an image taken with a camera, or outside light rays such as sun rays or illumination rays vary, detection accuracy is reduced. To overcome such problems, a manipulation input device is provided that includes a limited hand manipulation determination unit and a menu representation unit, whereby a simple manipulation can be achieved and manipulation can accurately be determined. In addition, detection accuracy can be improved by a unit that selects a single result from results determined by a plurality of determination units, based on images taken with a plurality of cameras.Type: GrantFiled: November 8, 2012Date of Patent: March 25, 2014Assignee: Mitsubishi Electric CorporationInventors: Yoshihiro Nishida, Masayuki Tsuji, Isao Otsuka, Reiko Okada, Kiyoshi Matsutani
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Patent number: 8571393Abstract: A recording medium (100) for a reservation of video recording of a program holds encoded compressed video information (1531) related to the program, a reservation set command (331) for setting a reservation of the program, and program attribute information (323) including at least a video recording reservation start date and time. When a viewer makes a selection to set a reservation of video recording while watching a preview video (200) based on the encoded compressed video information of the recording medium in a video recording/reproducing apparatus, the video recording/reproducing apparatus acquires the program attribute information (332) in accordance with the reservation set command (331) in the recording medium (100), thereby setting a reservation of video recording.Type: GrantFiled: June 11, 2004Date of Patent: October 29, 2013Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Masaaki Shimada, Isao Otsuka, Masaharu Ogawa, Kazuhiko Nakane
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Publication number: 20130100346Abstract: A video processing device includes: a telop detector for detecting a telop area including a telop in an input sequence of video frames; an audio alert detector for detecting an audio alert from an input sequence of audio signals corresponding to the input sequence of video frames; and a video processor for replacing a telop area in the video frame in which the telop area is detected with an image derived from a video frame preceding the video frame in which the telop of the telop area initially appears in the input sequence of video frames, and outputting the video frame in which the telop area has been replaced. The video processor selectively replaces the telop area of a telop accompanied by an audio alert detected by the audio alert detector.Type: ApplicationFiled: September 14, 2012Publication date: April 25, 2013Inventors: Isao OTSUKA, Tomonori FUKUTA
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Patent number: 8378970Abstract: When a vehicle navigation system is manipulated by taking pictures of a user hand motion and gesture with a camera, as the number of apparatuses and operational objects increases, the associated hand shapes and hand motions increase, thus causing a complex manipulation for a user. Furthermore, in detecting a hand with the camera, when the image of a face having color tone information similar to that of a hand appears in an image taken with a camera, or outside light rays such as sun rays or illumination rays vary, detection accuracy is reduced. To overcome such problems, a manipulation input device is provided that includes a limited hand manipulation determination unit and a menu representation unit, whereby a simple manipulation can be achieved and manipulation can accurately be determined. In addition, detection accuracy can be improved by a unit that selects a single result from results determined by a plurality of determination units, based on images taken with a plurality of cameras.Type: GrantFiled: October 20, 2008Date of Patent: February 19, 2013Assignee: Mitsubishi Electric CorporationInventors: Yoshihiro Nishida, Masayuki Tsuji, Isao Otsuka, Reiko Okada, Kiyoshi Matsutani
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Patent number: 8306392Abstract: Problem: It is to automatically recognize CM-broadcast periods, while video-recording television broadcast, without interfering with simultaneous access action to the medium for video-recording the television broadcast. Means to Solve the Problem: By detecting transition points in an audio video signal of a television broadcast, recognizing a CM broadcast period when the points occur at intervals specific to CM-broadcast periods, and controlling to record into a recording medium at a predetermined timing, time information of plural CM-broadcast periods determined to be continuous, the frequency to access the recording medium can be reduced, which results in simultaneously recording inputted video images and time information of CM-broadcast periods into the recording medium.Type: GrantFiled: October 8, 2008Date of Patent: November 6, 2012Assignee: Mitsubishi Electric CorporationInventors: Hidetsugu Suginohara, Isao Otsuka
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Patent number: 8139165Abstract: It is an object of the present invention to provide a television receiver for discriminating a CM broadcast from a received television broadcast and controlling a volume of the CM broadcast without complicating a configuration of a discriminating process of the CM broadcast. The present invention includes a silence detection means, a scene change detection means, a video audio changing point detection means, a first characteristic amount extraction means, a second characteristic amount extraction means, a comparison determining means and a volume control means. The comparison determining means compares the first characteristic amount which is an audio characteristic amount of a television signal before the time when the video audio changing point is detected, and the second characteristic amount which is an audio characteristic amount of a television signal after the time when the video audio changing point is detected, to determine whether a predetermined condition is satisfied or not.Type: GrantFiled: July 30, 2007Date of Patent: March 20, 2012Assignee: Mitsubishi Electric CorporationInventors: Fumio Abe, Isao Otsuka, Kenichiro Tanaka
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Publication number: 20120018117Abstract: An indoor unit includes a casing having a suction port formed in an upper part and a blow-out port formed on a lower side at a front face part, an axial-flow or diagonal-flow fan provided on the downstream side of the suction port in the casing, and a heat exchanger provided on the downstream side of the fan and on the upstream side of the blow-out port in the casing, in which air blown out of the fan and refrigerant are heat-exchanged.Type: ApplicationFiled: October 2, 2009Publication date: January 26, 2012Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Shoji Yamada, Kenichi Sakoda, Masao Akiyoshi, Akira Takamori, Nobuaki Uehara, Tomoya Fukui, Seiji Nakashima, Naoki Iwamoto, Satoshi Michihata, Isao Otsuka, Masayuki Tsuji
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Patent number: 7982806Abstract: A broadcast receiver includes a first video signal selector which outputs a video signal of a main-picture; a second video signal selector which outputs a video signal of a sub-picture; a first audio signal selector which outputs an audio signal of the main-picture; a second audio signal selector which outputs an audio signal of the sub-picture; a first video processor which generates a third video signal from the video signals of the main-picture and/or sub-picture; a feature quantity generator which generates a feature quantity of the audio signal of the sub-picture in accordance with a result of comparison between data corresponding to the audio signal of the sub-picture and sound class model data created beforehand; a determination processor which determines a scene as a specified scene; and a controller which controls the whole components in accordance with the specified scene.Type: GrantFiled: December 5, 2006Date of Patent: July 19, 2011Assignee: Mitsubishi Electric CorporationInventors: Isao Otsuka, Hidetsugu Suginohara
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Publication number: 20100232765Abstract: [Problem] The present invention provides a method of detecting a music scene with a high accuracy from a television broadcast. [Means for Solution] The music-segment detection method provided with a data input step of inputting data including an audio signal and a video signal; a plurality of candidate-music-segment detection steps of detecting, from the audio signal, respective candidate music-segments in the input data, based on criteria different from each other; a change-point detection step of detecting a change point in the input data, based on a distinctive change in the audio signal and/or on a distinctive change in a video signal; and a music-segment detection step of detecting a music segment, based on the plurality of detected candidate-music-segments and on the detected change point.Type: ApplicationFiled: January 9, 2007Publication date: September 16, 2010Inventors: Hidetsugu Suginohara, Isao Otsuka
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Publication number: 20100215346Abstract: Problem: It is to automatically recognize CM-broadcast periods, while video-recording television broadcast, without interfering with simultaneous access action to the medium for video-recording the television broadcast. Means to Solve the Problem: By detecting transition points in an audio video signal of a television broadcast, recognizing a CM broadcast period when the points occur at intervals specific to CM-broadcast periods, and controlling to record into a recording medium at a predetermined timing, time information of plural CM-broadcast periods determined to be continuous, the frequency to access the recording medium can be reduced, which results in simultaneously recording inputted video images and time information of CM-broadcast periods into the recording medium.Type: ApplicationFiled: October 8, 2008Publication date: August 26, 2010Inventors: Hidetsugu Suginohara, Isao Otsuka
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Patent number: 7756338Abstract: A computer implemented method detects scene boundaries in videos by first extracting feature vectors from videos of different genres. The feature vectors are then classified as scene boundaries using a support vector machine. The support vector machine is trained to be independent of the different genres of the videos.Type: GrantFiled: February 14, 2007Date of Patent: July 13, 2010Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Kevin W. Wilson, Ajay Divakaran, Feng Niu, Naveen Goela, Isao Otsuka
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Publication number: 20100053452Abstract: It is an object of the present invention to provide a television receiver for discriminating a CM broadcast from a received television broadcast and controlling a volume of the CM broadcast without complicating a configuration of a discriminating process of the CM broadcast. The present invention includes a silence detection means, a scene change detection means, a video audio changing point detection means, a first characteristic amount extraction means, a second characteristic amount extraction means, a comparison determining means and a volume control means. The comparison determining means compares the first characteristic amount which is an audio characteristic amount of a television signal before the time when the video audio changing point is detected, and the second characteristic amount which is an audio characteristic amount of a television signal after the time when the video audio changing point is detected, to determine whether a predetermined condition is satisfied or not.Type: ApplicationFiled: July 30, 2007Publication date: March 4, 2010Inventors: Fumio Abe, Isao Otsuka, Kenichiro Tanaka