Patents by Inventor Yasuhiro Takishima
Yasuhiro Takishima 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: 10104356Abstract: A scenario generation system, a scenario generation method, and a scenario generation program are provided. A scenario generation system used for video playback synchronized with musical piece playback includes a situation estimating portion for estimating a situation expressed by the musical piece, a video specifying portion for specifying at least one video suited for the estimated situation in the video constituted by scenes each having a time-series order, and a scenario generating portion for generating a scenario associating the scenes constituting the specified video with each section of the musical piece. As a result, a scenario can be generated by the scenes each having the time-series order, and the synchronized video with a natural impression can be reproduced corresponding to the musical piece playback on the basis of the scenario.Type: GrantFiled: June 25, 2014Date of Patent: October 16, 2018Assignee: KDDI CORPORATIONInventors: Hiromi Ishizaki, Gen Hattori, Yasuhiro Takishima
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Publication number: 20160203147Abstract: Provided is a page/site server and so on for immediately displaying a noteworthy place in a page content. The page/site server enables communication with a comment server allowing contributors to send their comments to one another and responds with a page content including text according to a page acquisition request transmitted from a terminal. The page/site server comprises: a comment group retriever retrieving from within the comment server a comment group related to the page content; a characteristic word extractor extracting from the comment group a characteristic word included in text of the page content with high appearance frequency under a predetermined condition; a characteristic word retriever retrieving a place where the characteristic word appears in the page content; and a browsing-part display controller controlling the objective page content to be displayed on the terminal in such a way that the place where the characteristic word appears can be browsed.Type: ApplicationFiled: September 19, 2014Publication date: July 14, 2016Applicant: KDDI CORPORATIONInventors: Kazushi IKEDA, Gen HATTORI, Yasuhiro TAKISHIMA
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Publication number: 20160134855Abstract: A scenario generation system, a scenario generation method, and a scenario generation program are provided. A scenario generation system used for video playback synchronized with musical piece playback includes a situation estimating portion for estimating a situation expressed by the musical piece, a video specifying portion for specifying at least one video suited for the estimated situation in the video constituted by scenes each having a time-series order, and a scenario generating portion for generating a scenario associating the scenes constituting the specified video with each section of the musical piece. As a result, a scenario can be generated by the scenes each having the time-series order, and the synchronized video with a natural impression can be reproduced corresponding to the musical piece playback on the basis of the scenario.Type: ApplicationFiled: June 25, 2014Publication date: May 12, 2016Applicant: KDDI CORPORATIONInventors: Hiromi ISHIZAKI, Gen HATTORI, Yasuhiro TAKISHIMA
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Patent number: 8660183Abstract: Re-encoding information indicating whether or not an input moving picture has been compression-encoded is provided to a mode determining unit. The mode determining unit determines an optimal encoding mode for the input moving picture, out of a plurality of encoding modes. The mode determining operation is controlled by the re-encoding information. According to a mode determination result of the mode determining unit, a prediction error value corresponding to the determined mode is selected by a selection switch, and then, an encoding process is performed. As the re-encoding information, a pre-determined value, a bit rate, and a quantization parameter, etc., could be provided.Type: GrantFiled: October 20, 2008Date of Patent: February 25, 2014Assignee: KDDI CorporationInventors: Satoshi Miyaji, Yasuhiro Takishima
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Patent number: 8601006Abstract: A search unit 11 presents a Web search result report to a client terminal 20. A theme space construction unit 12 updates theme information within a theme information DB 13 by a user-acquired information feedback from the client terminal 20, and performs a Web search to construct a theme space. The search unit 11 includes an exhaustivity calculation unit that calculates exhaustivity being a ratio of a user-acquired part to a part of an entire target theme. Moreover, the search unit 11 includes a difference calculation unit that calculates a difference between a “user-acquired” range when a user has acquired target Web pages and a user-acquired range before that, and a relevance calculation unit that calculates relevance of the target Web pages to the target theme.Type: GrantFiled: December 10, 2009Date of Patent: December 3, 2013Assignee: KDDI CorporationInventors: Gen Hattori, Chihiro Ono, Yasuhiro Takishima
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Patent number: 8550366Abstract: A barcode-embedding area is obtained in a color image based on expression possibility by the juxtaposed additive color mixture and possibility of reading of pixels separately by a barcode reader (S11), a color image in the barcode-embedding area is expressed by the juxtaposed additive color mixture, and color images for the code area and the background area, which are readable by the barcode reader, are created (S12, S13), a color-image-superimposed barcode image is created by using the color images for the code area and the background area, and the same color-image-superimposed barcode image is embedded in the barcode-embedding area (S14), and the color-image-superimposed barcode image and the original color image are corrected if necessary (S15, S16).Type: GrantFiled: July 27, 2007Date of Patent: October 8, 2013Assignee: KDDI CorporationInventors: Emi Myodo, Shigeyuki Sakazawa, Yasuhiro Takishima
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Patent number: 8521660Abstract: The present invent ion provides a condensed SVM for high-speed learning using a large amount of training data. A first stage WS selector samples a plurality of training data from a training data DB, selects an optimal training vector xt among the plurality of training data, and outputs it to the WS manager. After the first stage finishes, a second stage WS selector extracts training data one by one from the training data DB and selects training data xt satisfying optimality and outputs it to the WS manager. An SVM optimizer extracts training data closest to the training data xt selected by the first and second stage WS selectors from the WS being managed by the WS manager, and condenses the two first and second training data to one training data when the distance between these is smaller than a predetermined value.Type: GrantFiled: January 25, 2010Date of Patent: August 27, 2013Assignee: KDDI CorporationInventors: Duc Dung Nguyen, Kazunori Matsumoto, Yasuhiro Takishima
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Patent number: 8346687Abstract: An SV reduction method for multi-class SVMs is provided with which a number of SVs contained in the multi-class SVMs can be reduced without becoming trapped in a local minimum optimization solution and the reduction of the SVs can be performed at high precision and high speed. The method includes a step of selecting, from a plurality of initially present support vectors, support vector pairs zi, zj (i, j=1, 2, . . . , NS); a step of preparing a single-variable objective function with a single global maximum and determining a maximum value k of the objective function; and a step of applying the maximum value k to the support vector pairs zi and zj to determine a temporary vector Ztemp[i] of small classification errors; and the support vector pairs zi, zj are represented by the temporary vector Ztemp[i].Type: GrantFiled: September 16, 2009Date of Patent: January 1, 2013Assignee: KDDI CorporationInventors: Duc Dung Nguyen, Kazunori Matsumoto, Yasuhiro Takishima
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Patent number: 8181027Abstract: The present invention provides a scrambled compressed data distribution device that can perform a high-resistance scrambled compressed data distribution by selectively using a plurality of types of scramble information and a playback device thereof. A scrambling section scrambles compressed data by unique one of a plurality of scrambling methods. A hash value calculating section determines a hash value based on data b in a position where digital watermark data is not embedded, and an encrypting section encrypts the hash value with a secret key Sk(n) corresponding to the scrambling method and outputs an encrypted hash value c. A watermark data embedding section embeds the encrypted hash value in a watermark data embedding position of the data b and transmits the same as a compressed data stream d.Type: GrantFiled: December 13, 2010Date of Patent: May 15, 2012Assignee: KDDI CorporationInventors: Koichi Takagi, Shigeyuki Sakazawa, Yasuhiro Takishima
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Patent number: 8134903Abstract: Degraded digital data is distributed from a server 1 to each user A, B, C, and D. An encrypted degradation compensation module is also delivered to the digital data duplicating apparatus 2 for the user A. The digital data duplicating apparatus 2 decrypts the encrypted degradation compensation module using its own encryption key, when playing digital data, to generate a 100% degradation compensation module. This module is applied to the degraded digital data to compensate the degradation thereof. An encrypted degradation compensation module of which the degradation compensation capability is reduced is delivered from the user A to the user B. The user B can use the encrypted degradation compensation module of which the degradation compensation capability is reduced from the user A to replicate the degraded digital data.Type: GrantFiled: September 19, 2007Date of Patent: March 13, 2012Assignee: KDDI CorporationInventors: Koichi Takagi, Masaru Sugano, Yasuhiro Takishima
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Patent number: 8074074Abstract: The present invention provides a scrambled compressed data distribution device that can perform a high-resistance scrambled compressed data distribution by selectively using a plurality of types of scramble information and a playback device thereof. A scrambling section scrambles compressed data by unique one of a plurality of scrambling methods. A hash value calculating section determines a hash value based on data b in a position where digital watermark data is not embedded, and an encrypting section encrypts the hash value with a secret key Sk(n) corresponding to the scrambling method and outputs an encrypted hash value c. A watermark data embedding section embeds the encrypted hash value in a watermark data embedding position of the data b and transmits the same as a compressed data stream d.Type: GrantFiled: March 13, 2006Date of Patent: December 6, 2011Assignee: KDDI CorporationInventors: Koichi Takagi, Shigeyuki Sakazawa, Yasuhiro Takishima
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Patent number: 7991183Abstract: The present invention provides an electronic watermark editor for a compressed video that can efficiently carry out editing such as deletion or rewriting of electronic watermark data. DCT coefficient values are extracted while applying all templates to video contents, and a template where a total sum of relative absolute value differences between pairs of the DCT coefficient values is maximized is judged to be an applied template. The pairs of DCT coefficient values extracted by the applied template are processed by a smoothing process section so that the relative differences are reduced and so as to reduce individual relative differences recursively until significant differences between the coefficient value pairs are statistically eliminated. In addition, the pairs of DCT coefficient values extracted by the applied template are replaced with new editing bits.Type: GrantFiled: October 20, 2006Date of Patent: August 2, 2011Assignee: KDDI CorporationInventors: Shigeyuki Sakazawa, Yasuhiro Takishima
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Publication number: 20110081019Abstract: The present invention provides a scrambled compressed data distribution device that can perform a high-resistance scrambled compressed data distribution by selectively using a plurality of types of scramble information and a playback device thereof. A scrambling section scrambles compressed data by unique one of a plurality of scrambling methods. A hash value calculating section determines a hash value based on data b in a position where digital watermark data is not embedded, and an encrypting section encrypts the hash value with a secret key Sk(n) corresponding to the scrambling method and outputs an encrypted hash value c. A watermark data embedding section embeds the encrypted hash value in a watermark data embedding position of the data b and transmits the same as a compressed data stream d.Type: ApplicationFiled: December 13, 2010Publication date: April 7, 2011Applicant: KDDI CORPORATIONInventors: Koichi Takagi, Shigeyuki Sakazawa, Yasuhiro Takishima
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Publication number: 20110055213Abstract: To provide a query extracting apparatus, query extracting method and query extracting program capable of retrieving an image that is suited to a part of lyrics while also having suitability for the other parts, a query extracting apparatus 100 to retrieve images suited to lyrics divides lyrics targeted for query extraction into a plurality of segments, determines a preferential segment in which a keyword group is preferentially selected from among the segments, and selects a keyword group to retrieve an image suited to lyrics of the preferential segment while also referring to information of one or more segments. By this means, keywords suited to the preferential segment are preferentially selected, while also referring to the other segments to extract an image retrieval query, and it is thus possible to retrieve an image that is suited to a part of the lyrics while also having suitability for the other parts.Type: ApplicationFiled: August 5, 2010Publication date: March 3, 2011Applicant: KDDI CorporationInventors: Hiromi Ishizaki, Keiichiro Hoashi, Yasuhiro Takishima
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Patent number: 7860326Abstract: The present invention improves the encoding efficiency, image quality, resolution, and the like of an input image having a special property, for example, an image input from a special camera. The input image is sliced according to a recognized shape and divided into blocks having a size according to a pixel density or an image resolution. Then, an object in the image is defined using a parameter including the numbers of the sliced images and the amounts of shift of the sliced images from a reference position, and the respective blocks are encoded using the movement of the object. Further, when a partial image is cut out from a base image, encoded, and then transmitted, a processing load in the encoding processing is reduced by encoding the partial image making use of preprocessing data.Type: GrantFiled: September 16, 2004Date of Patent: December 28, 2010Assignee: KDDI CorporationInventors: Yasuhiro Takishima, Satoshi Miyaji
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Publication number: 20100191683Abstract: The present invent ion provides a condensed SVM for high-speed learning using a large amount of training data. A first stage WS selector samples a plurality of training data from a training data DB, selects an optimal training vector xt among the plurality of training data, and outputs it to the WS manager. After the first stage finishes, a second stage WS selector extracts training data one by one from the training data DB and selects training data xt satisfying optimality and outputs it to the WS manager. An SVM optimizer extracts training data closest to the training data xt selected by the first and second stage WS selectors from the WS being managed by the WS manager, and condenses the two first and second training data to one training data when the distance between these is smaller than a predetermined value.Type: ApplicationFiled: January 25, 2010Publication date: July 29, 2010Applicant: KDDI CORPORATIONInventors: Duc Dung Nguyen, Kazunori Matsumoto, Yasuhiro Takishima
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Publication number: 20100161622Abstract: A search unit 11 presents a Web search result report to a client terminal 20. A theme space construction unit 12 updates theme information within a theme information DB 13 by a user-acquired information feedback from the client terminal 20, and performs a Web search to construct a theme space. The search unit 11 includes an exhaustivity calculation unit that calculates exhaustivity being a ratio of a user-acquired part to a part of an entire target theme. Moreover, the search unit 11 includes a difference calculation unit that calculates a difference between a “user-acquired” range when a user has acquired target Web pages and a user-acquired range before that, and a relevance calculation unit that calculates relevance of the target Web pages to the target theme.Type: ApplicationFiled: December 10, 2009Publication date: June 24, 2010Inventors: Gen Hattori, Chihiro Ono, Yasuhiro Takishima
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Patent number: 7729391Abstract: A transmitting device includes a first buffer for temporarily storing audio data, a second buffer for temporarily storing video data, a multiplexing unit for outputting audio data coming from the first buffer and video data coming from the second buffer onto a single signal channel, and a transmission buffer monitoring unit for monitoring the amount of first buffered data stored in the first buffer and, if the amount of the first buffered data exceeds a first threshold, instructing the second buffer to discard video data.Type: GrantFiled: October 12, 2005Date of Patent: June 1, 2010Assignee: KDDI CorporationInventors: Satoshi Miyaji, Yasuhiro Takishima
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Publication number: 20100100443Abstract: It is an object to provide user classification apparatus, a user classification method, and a program used thereby, which classify users based on search log and support the analysis of customer trends, and advertisement distribution apparatus, an advertisement distribution method, and a program used thereby, which distribute advertisements based on the analysis of customer trends. The user classification apparatus is provided with a search log database, a user search log information extracting unit extracting search log information of a user, an analyzed keyword extracting unit extracting search keyword information contained in search log information, a search session dividing unit dividing the search log information of the user into a plurality of search sessions, a search session class extracting unit generating a class, a user belonging class calculation unit classifying the user into the class, and a user search log analysis result display unit displaying the classification result.Type: ApplicationFiled: September 3, 2009Publication date: April 22, 2010Inventors: Keiichiro Hoashi, Chihiro Ono, Yasuhiro Takishima
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Patent number: 7693346Abstract: First, a set of seed images that tally with each other are prepared (S101). Next, a set of threshold matrices are created from the set of seed images (S102). Next, a plurality of tally images are created from an input gray-scale image by using the set of threshold matrices (S103). The tally images are combined, whereby the confidential image is decoded.Type: GrantFiled: March 1, 2006Date of Patent: April 6, 2010Assignee: KDDI CorporationInventors: Emi Myodo, Shigeyuki Sakazawa, Yasuhiro Takishima