Patents by Inventor Hideki Ohtsuka
Hideki Ohtsuka 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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Publication number: 20110206115Abstract: Disclosed herein is a data encoding apparatus including a transform encoding section; a quantization-scale computation section; a feature-quantity extraction section; a quantization-scale adjustment section; and a quantization section.Type: ApplicationFiled: February 16, 2011Publication date: August 25, 2011Inventors: Akihiro OKUMURA, Hideki Ohtsuka
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Patent number: 7336829Abstract: JPEG encoded data are entropy-decoded to quantized DCT coefficients which are sent to a prediction tap extraction circuit (41) and to a class tap extraction circuit (42). The prediction tap extraction circuit (41) and the class tap extraction circuit (42) extract what is needed from the quantized DCT coefficients to form prediction taps and class taps. A classification circuit (43) effects classification based on the class taps. A coefficient table storage unit (44) sends tap coefficients corresponding to the classes resulting from the classification to a sum of products circuit (45), which sum of products circuit (45) then effects linear predictive calculations, using the tap coefficients and the class taps, to generate decoded picture data.Type: GrantFiled: October 20, 2006Date of Patent: February 26, 2008Assignee: Sony CorporationInventors: Tetsujiro Kondo, Toshihiko Hamamatsu, Hideo Nakaya, Takeharu Nishikata, Hideki Ohtsuka, Takeshi Kunihiro, Takafumi Morifuji, Masashi Uchida
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Patent number: 7289671Abstract: JPEG encoded data are entropy-decoded to quantized DCT coefficients which are sent to a prediction tap extraction circuit (41) and to a class tap extraction circuit (42). The prediction tap extraction circuit (41) and the class tap extraction circuit (42) extract what is needed from the quantized DCT coefficients to form prediction taps and class taps. A classification circuit (43) effects classification based on the class taps. A coefficient table storage unit (44) sends tap coefficients corresponding to the classes resulting from the classification to a sum of products circuit (45), which sum of products circuit (45) then effects linear predictive calculations, using the tap coefficients and the class taps, to generate decoded picture data.Type: GrantFiled: October 20, 2006Date of Patent: October 30, 2007Assignee: Sony CorporationInventors: Tetsujiro Kondo, Toshihiko Hamamatsu, Hideo Nakaya, Takeharu Nishikata, Hideki Ohtsuka, Takeshi Kunihiro, Takafumi Morifuji, Masashi Uchida
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Patent number: 7283678Abstract: JPEG encoded data are entropy-decoded to quantized DCT coefficients which are sent to a prediction tap extraction circuit (41) and to a class tap extraction circuit (42). The prediction tap extraction circuit (41) and the class tap extraction circuit (42) extract what is needed from the quantized DCT coefficients to form prediction taps and class taps. A classification circuit (43) effects classification based on the class taps. A coefficient table storage unit (44) sends tap coefficients corresponding to the classes resulting from the classification to a sum of products circuit (45), which sum of products circuit (45) then effects linear predictive calculations, using the tap coefficients and the class taps, to generate decoded picture data.Type: GrantFiled: October 20, 2006Date of Patent: October 16, 2007Assignee: Sony CorporationInventors: Tetsujiro Kondo, Toshihiko Hamamatsu, Hideo Nakaya, Takeharu Nishikata, Hideki Ohtsuka, Takeshi Kunihiro, Takafumi Morifuji, Masashi Uchida
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Patent number: 7206452Abstract: JPEG encoded data are entropy-decoded to quantized DCT coefficients which are sent to a prediction tap extraction circuit (41) and to a class tap extraction circuit (42). The prediction tap extraction circuit (41) and the class tap extraction circuit (42) extract what is needed from the quantized DCT coefficients to form prediction taps and class taps. A classification circuit (43) effects classification based on the class taps. A coefficient table storage unit (44) sends tap coefficients corresponding to the classes resulting from the classification to a sum of products circuit (45), which sum of products circuit (45) then effects linear predictive calculations, using the tap coefficients and the class taps, to generate decoded picture data.Type: GrantFiled: February 7, 2006Date of Patent: April 17, 2007Assignee: Sony CorporationInventors: Tetsujiro Kondo, Toshihiko Hamamatsu, Hideo Nakaya, Takeharu Nishikata, Hideki Ohtsuka, Takeshi Kunihiro, Takafumi Morifuji, Masashi Uchida
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Publication number: 20070058873Abstract: JPEG encoded data are entropy-decoded to quantized DCT coefficients which are sent to a prediction tap extraction circuit (41) and to a class tap extraction circuit (42). The prediction tap extraction circuit (41) and the class tap extraction circuit (42) extract what is needed from the quantized DCT coefficients to form prediction taps and class taps. A classification circuit (43) effects classification based on the class taps. A coefficient table storage unit (44) sends tap coefficients corresponding to the classes resulting from the classification to a sum of products circuit (45), which sum of products circuit (45) then effects linear predictive calculations, using the tap coefficients and the class taps, to generate decoded picture data.Type: ApplicationFiled: October 20, 2006Publication date: March 15, 2007Inventors: Tetsujiro Kondo, Toshihiko Hamamatsu, Hideo Nakaya, Takeharu Nishikata, Hideki Ohtsuka, Takeshi Kunihiro, Takafumi Morifuji, Masashi Uchida
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Publication number: 20070036450Abstract: JPEG encoded data are entropy-decoded to quantized DCT coefficients which are sent to a prediction tap extraction circuit (41) and to a class tap extraction circuit (42). The prediction tap extraction circuit (41) and the class tap extraction circuit (42) extract what is needed from the quantized DCT coefficients to form prediction taps and class taps. A classification circuit (43) effects classification based on the class taps. A coefficient table storage unit (44) sends tap coefficients corresponding to the classes resulting from the classification to a sum of products circuit (45), which sum of products circuit (45) then effects linear predictive calculations, using the tap coefficients and the class taps, to generate decoded picture data.Type: ApplicationFiled: October 20, 2006Publication date: February 15, 2007Inventors: Tetsujiro Kondo, Toshihiko Hamamatsu, Hideo Nakaya, Takeharu Nishikata, Hideki Ohtsuka, Takeshi Kunihiro, Takafumi Morifuji, Masashi Uchida
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Publication number: 20070036449Abstract: JPEG encoded data are entropy-decoded to quantized DCT coefficients which are sent to a prediction tap extraction circuit (41) and to a class tap extraction circuit (42). The prediction tap extraction circuit (41) and the class tap extraction circuit (42) extract what is needed from the quantized DCT coefficients to form prediction taps and class taps. A classification circuit (43) effects classification based on the class taps. A coefficient table storage unit (44) sends tap coefficients corresponding to the classes resulting from the classification to a sum of products circuit (45), which sum of products circuit (45) then effects linear predictive calculations, using the tap coefficients and the class taps, to generate decoded picture data.Type: ApplicationFiled: October 20, 2006Publication date: February 15, 2007Inventors: Tetsujiro Kondo, Toshihiko Hamamatsu, Hideo Nakaya, Takeharu Nishikata, Hideki Ohtsuka, Takeshi Kunihiro, Takafumi Morifuji, Masashi Uchida
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Patent number: 7068845Abstract: A class synthesizing circuit classifies an aimed-at data item into one of a plurality of classes specified in advance, according to a plurality of data items disposed around the aimed-at data item. A coefficient holding and class-code selection circuit stores conversion information for the aimed-at data item, for each class. An estimation-prediction calculation circuit converts the aimed-at data item to a higher-quality data item according to the conversion information. The class synthesizing circuit classifies the aimed-at data item into a different class according to whether the aimed-at data item is missing.Type: GrantFiled: February 8, 2001Date of Patent: June 27, 2006Assignee: Sony CorporationInventors: Tetsujiro Kondo, Hideo Nakaya, Tsutomu Watanabe, Hideki Ohtsuka, Yasuaki Takahashi, Seiji Wada, Takahiro Nagano, Koji Ohta, Hisakazu Shiraki
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Publication number: 20060126953Abstract: JPEG encoded data are entropy-decoded to quantized DCT coefficients which are sent to a prediction tap extraction circuit (41) and to a class tap extraction circuit (42). The prediction tap extraction circuit (41) and the class tap extraction circuit (42) extract what is needed from the quantized DCT coefficients to form prediction taps and class taps. A classification circuit (43) effects classification based on the class taps. A coefficient table storage unit (44) sends tap coefficients corresponding to the classes resulting from the classification to a sum of products circuit (45), which sum of products circuit (45) then effects linear predictive calculations, using the tap coefficients and the class taps, to generate decoded picture data.Type: ApplicationFiled: February 7, 2006Publication date: June 15, 2006Inventors: Tetsujiro Kondo, Toshihiko Hamamatsu, Hideo Nakaya, Takeharu Nishikata, Hideki Ohtsuka, Takeshi Kunihiro, Takafumi Morifuji, Masashi Uchida
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Patent number: 7035471Abstract: JPEG encoded data are entropy-decoded to quantized DCT coefficients which are sent to a prediction tap extraction circuit (41) and to a class tap extraction circuit (42). The prediction tap extraction circuit (41) and the class tap extraction circuit (42) extract what is needed from the quantized DCT coefficients to form prediction taps and class taps. A classification circuit (43) effects classification based on the class taps. A coefficient table storage unit (44) sends tap coefficients corresponding to the classes resulting from the classification to a sum of products circuit (45), which sum of products circuit (45) then effects linear predictive calculations, using the tap coefficients and the class taps, to generate decoded picture data.Type: GrantFiled: May 9, 2001Date of Patent: April 25, 2006Assignee: Sony CorporationInventors: Tetsujiro Kondo, Toshihiko Hamamatsu, Hideo Nakaya, Takeharu Nishikata, Hideki Ohtsuka, Takeshi Kunihiro, Takafumi Morifuji, Masashi Uchida
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Patent number: 6912014Abstract: An effective pixel area calculating circuit (11) detects position information indicating the position of a target pixel in a frame. A lacking pixel creating circuit (12) determines the class of the target pixel from a plurality of classes in accordance with the position information, then selects a plurality of pixels from an input image signal as a prediction tap, and carries out arithmetic processing based on conversion data obtained in advance by learning for each class and the prediction tap, thus outputting an output image signal of higher quality than the input image signal.Type: GrantFiled: February 8, 2001Date of Patent: June 28, 2005Assignee: Sony CorporationInventors: Tetsujiro Kondo, Hideo Nakaya, Tsutomu Watanabe, Hideki Ohtsuka, Yasuaki Takahashi, Seiji Wada, Takahiro Nagano, Koji Ohta
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Publication number: 20030030753Abstract: An effective pixel area calculating circuit (11) detects position information indicating the position of a target pixel in a frame. A lacking pixel creating circuit (12) determines the class of the target pixel from a plurality of classes in accordance with the position information, then selects a plurality of pixels from an input image signal as a prediction tap, and carries out arithmetic processing based on conversion data obtained in advance by learning for each class and the prediction tap, thus outputting an output image signal of higher quality than the input image signal.Type: ApplicationFiled: February 1, 2002Publication date: February 13, 2003Inventors: Tetsujiro Kondo, Hideo Nakaya, Tsutomu Watanabe, Hideki Ohtsuka, Yasuaki Takahashi, Seiji Wada, Takahiro Nagano, Koji Ohta
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Publication number: 20020186888Abstract: JPEG encoded data are entropy-decoded to quantized DCT coefficients which are sent to a prediction tap extraction circuit (41) and to a class tap extraction circuit (42). The prediction tap extraction circuit (41) and the class tap extraction circuit (42) extract what is needed from the quantized DCT coefficients to form prediction taps and class taps. A classification circuit (43) effects classification based on the class taps. A coefficient table storage unit (44) sends tap coefficients corresponding to the classes resulting from the classification to a sum of products circuit (45), which sum of products circuit (45) then effects linear predictive calculations, using the tap coefficients and the class taps, to generate decoded picture data.Type: ApplicationFiled: June 3, 2002Publication date: December 12, 2002Inventors: Tetsujiro Kondo, Toshihiko Hamamatsu, Hideo Nakaya, Takeharu Nishikata, Hideki Ohtsuka, Takeshi Kunihiro, Takafumi Morifuji, Masashi Uchida
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Publication number: 20020015528Abstract: A class synthesizing circuit classifies an aimed-at data item into one of a plurality of classes specified in advance, according to a plurality of data items disposed around the aimed-at data item. A coefficient holding and class-code selection circuit stores conversion information for the aimed-at data item, for each class. An estimation-prediction calculation circuit converts the aimed-at data item to a higher-quality data item according to the conversion information. The class synthesizing circuit classifies the aimed-at data item into a different class according to whether the aimed-at data item is missing.Type: ApplicationFiled: February 8, 2001Publication date: February 7, 2002Inventors: Tetsujiro Kondo, Hideo Nakaya, Tsutomu Watanabe, Hideki Ohtsuka, Yasuaki Takahashi, Seiji Wada, Takahiro Nagano, Koji Ohta, Hisakazu Shiraki
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Patent number: 5297127Abstract: One end of each of a plurality of plate springs is fixed to an optical pickup body slidably supported by supporting shafts through sliding bearings, and each of a plurality of bearings is fixed to the other end of each of the plate springs. The bearings are pressed against the supporting shafts by the energizing force of the plate springs, and a force is applied to the optical pickup body by the pressing force of the bearings in a direction opposite to gravity.Type: GrantFiled: March 17, 1992Date of Patent: March 22, 1994Assignee: Kabushiki Kaisha ToshibaInventors: Hideki Ohtsuka, Kazuharu Odawara