Patents by Inventor Kyohei Koyabu
Kyohei Koyabu 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: 7729591Abstract: A data processing apparatus outputting picture data to a reproduction apparatus reproducing a plurality of picture data in an order in accordance with a designated reproduction direction, the unit having a processing circuit outputting to the reproduction apparatus the picture data in an order in accordance with a reproduction direction designated in the reproduction apparatus and writing it into an input memory in the reproduction apparatus and, when reversing the reproduction direction designated at the reproduction apparatus, outputting the picture data to the reproduction apparatus conditional on the picture data to be used next in reproduction by the reproduction direction after reversal not being stored in the input memory.Type: GrantFiled: October 20, 2005Date of Patent: June 1, 2010Assignee: Sony CorporationInventors: Kyohei Koyabu, Shojiro Shibata, Shuji Tsunashima, Mototsugu Takamura, Shinjiro Kakita
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Patent number: 7653128Abstract: An information processing apparatus for decoding compression-coded video data includes at least one decoder decoding the compression-coded video data, a supply controller controlling the supply of the compression-coded video data to the decoder, and a controller controlling processing executed by the supply controller and the decoder. The controller determines the order of decoding processing performed by the decoder so that, among pictures contained in a decoding processing unit for the decoding processing performed by the decoder, I-pictures and P-pictures are decoded before B-pictures. The controller selects pictures to be output from the decoder from among the pictures contained in the decoding processing unit on the basis of a playback speed instruction provided by a playback speed instruction unit.Type: GrantFiled: October 25, 2005Date of Patent: January 26, 2010Assignee: Sony CorporationInventors: Shojiro Shibata, Shuji Tsunashima, Kyohei Koyabu, Mototsugu Takamura, Shinjiro Kakita, Mitsuhisa Kaneko
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Patent number: 7627232Abstract: A reproduction apparatus for successively decoding and reproducing a plurality of picture data, comprising a reproduction memory and a decoder for successively decoding the plurality of picture data in an order in accordance with a designated reproduction direction, writing the decoding results in the reproduction memory, and reproducing and outputting the decoding results read from the reproduction memory, the decoder holding the storage of the decoding results in the reproduction memory even after the decoding results stored in the reproduction memory are no longer used when continuing reproduction in the designated reproduction direction and, when receiving as input a reversal command of the reproduction direction, performing the reproduction and output using the decoding results already stored in the reproduction memory before the input of the reversal command.Type: GrantFiled: October 25, 2005Date of Patent: December 1, 2009Assignee: Sony CorporationInventors: Shuji Tsunashima, Shojiro Shibata, Mototsugu Takamura, Kyohei Koyabu, Shinjiro Kakita
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Publication number: 20090190829Abstract: The present invention is directed to an image information decoding apparatus adapted for performing intra-image decoding based on resolution of color components and color space of an input image signal. An intra prediction unit serves to adaptively change block size in generating a prediction image based on a chroma format signal indicating whether resolution of color components is one of 4:2:0 format, 4:2:2 format, and 4:4:4 format, and a color space signal indicating whether color space is one of YCbCr, RGB, and XYZ. An inverse orthogonal transform unit and an inverse quantization unit serve to also change orthogonal transform technique and quantization technique in accordance with the chroma format signal and the color space signal. A decoding unit decodes the chroma format signal and the color space signal generate a prediction image corresponding to the chroma format signal and the color space signal.Type: ApplicationFiled: December 30, 2008Publication date: July 30, 2009Inventors: Teruhiko Suzuki, Akira Sugiyama, Kyohei Koyabu
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Patent number: 7492950Abstract: The present invention is directed to an image information encoding apparatus adapted for performing intra-image encoding based on resolution of color components and color space of an input image signal. An intra prediction unit serves to adaptively change block size in generating a prediction image based on a chroma format signal indicating whether resolution of color components is one of 4:2:0 format, 4:2:2 format, and 4:4:4 format, and a color space signal indicating whether color space is one of YCbCr, RGB, and XYZ. An orthogonal transform unit and a quantization unit serve to also change orthogonal transform technique and quantization technique in accordance with the chroma format signal and the color space signal. A reversible encoding unit encodes the chroma format signal and the color space signal to include the encoded signals into image compressed information.Type: GrantFiled: July 20, 2004Date of Patent: February 17, 2009Assignee: Sony CorporationInventors: Teruhiko Suzuki, Akira Sugiyama, Kyohei Koyabu
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Publication number: 20080075175Abstract: An information processing apparatus that decodes a plurality of coded streams includes a decoder configured to decode the plurality of coded streams and a control unit configured to control the decoding of the plurality of coded streams so that the start of decoding a subject frame among frames forming the plurality of coded streams is delayed by an amount equal to a delay time, which is the longest pre-processing time among pre-processing times necessary for starting decoding the frames after an instruction to decode the subject frame is given.Type: ApplicationFiled: August 17, 2007Publication date: March 27, 2008Applicant: Sony CorporationInventors: Takanori TAKAHASHI, Keita Shirane, Kyohei Koyabu, Shojiro Shibata
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Publication number: 20080019444Abstract: An information processing apparatus and method for splicing first compressed image data with second compressed image data. The method includes performing a decoding process for a first decoding interval that includes a first editing point set to the first compressed image data to produce a first non-compressed image signal. A second decoding process includes a second editing point set to the second compressed image data to produce a second non-compressed image signal. A re-encoding process re-encodes an interval of a third non-compressed image signal and the first and second non-compressed image signals are spliced at the first and second editing points to produce third compressed image data.Type: ApplicationFiled: August 22, 2005Publication date: January 24, 2008Inventors: Takaaki Fuchie, Kyohei Koyabu, Hiromi Yoshinari
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Publication number: 20080008251Abstract: An information processing apparatus that decodes a coded stream includes a memory storing the coded stream, a decoder generating image data by decoding the coded stream stored in the memory, a memory-transfer controller controlling transfer so that the coded stream is transferred to the memory prior to timing for outputting the image data, and a decoding controller controlling decoding by the decoder so that, in the coded stream stored in the memory, a reference picture that is referred to in picture decoding is preferentially decoded.Type: ApplicationFiled: June 11, 2007Publication date: January 10, 2008Applicant: Sony CorporationInventors: Kyohei Koyabu, Shojiro Shibata, Shuji Tsunashima, Keita Shirane, Ikko Tanaka, Takanori Takahashi
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Publication number: 20070286244Abstract: An information processing apparatus controls first and second coded streams to be output in a form in which the first and second coded streams are connected to each other. The apparatus includes an operation-input acquiring unit for acquiring an operation input representing a playback portion of both coded streams to be played back, a storage unit for storing coded streams including both coded streams, a transfer-control unit for controlling transfer, to the storage unit, of portions of both coded streams for the operation input acquired by the operation-input acquiring unit, a coded stream necessary for decoding the portions of both coded streams for the acquired operation input, a decoding unit for decoding both coded streams stored in the storage unit to generate image data, and a commanding unit for commanding an image-data output time at which the image data generated by the decoding unit is output.Type: ApplicationFiled: June 11, 2007Publication date: December 13, 2007Applicant: Sony CorporationInventors: Kyohei Koyabu, Shojiro Shibata, Shuji Tsunashima, Keita Shirane, Ikko Tanaka
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Publication number: 20070041441Abstract: An information processing apparatus controlling processing for splicing first and second compressed image data at an editing point includes acquiring means for acquiring the code amounts of the first compressed image data near the start point and the second compressed image data near the end point of a first range around the editing point; analyzing means for analyzing, in accordance with the code amounts, a first locus of virtual buffer occupancies when the virtual buffer occupancy at the start point is minimum and a second locus of virtual buffer occupancies when the virtual buffer occupancy of a picture next to the end point is maximum; and determining means for determining, in accordance with the first locus and the second locus, an upper limit and a lower limit of the virtual buffer occupancy at the start point and the end point, respectively, when the first range is re-encoded.Type: ApplicationFiled: August 21, 2006Publication date: February 22, 2007Inventors: Kyohei Koyabu, Takaaki Fuchie, Hiromi Yoshinari
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Publication number: 20060133770Abstract: An information processing apparatus decodes compression-coded video data including I-pictures, P-pictures, and B-pictures. The information processing apparatus includes at least one decoder decoding the compression-coded video data, a supply controller controlling the supply of the compression-coded video data to the decoder, and a controller controlling processing executed by the supply controller and the decoder. The decoder includes a bank memory for storing decoded picture data, and the controller controls the timing at which a picture stored in the bank memory is released by changing the value of a first counter indicating a number of times for which the picture stored in the bank memory is referred to when a P-picture or a B-picture is decoded by the decoder.Type: ApplicationFiled: October 21, 2005Publication date: June 22, 2006Applicant: Sony CorporationInventors: Shojiro Shibata, Shuji Tsunashima, Mototsugu Takamura, Kyohei Koyabu, Shinjiro Kakita, Mitsuhisa Kaneko
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Publication number: 20060093321Abstract: A data processing system comprising a computer outputting to a reproduction apparatus data required for reproduction of a reproduction point in the reproduced data when receiving as input a first command designating a reproduction point of reproduced data and outputting to the reproduction apparatus a reproduction start command of the reproduction point when receiving as input a second command indicating the start of reproduction of the reproduction point designated by the first command after receiving as input the first command and a reproduction apparatus decoding data of the reproduction point based on the data input from the computer, storing the decoding result in a reproduction memory, and, when receiving as input the reproduction start command from the computer, reading, reproducing, and outputting the decoding results of the reproduction point from the reproduction memory.Type: ApplicationFiled: October 24, 2005Publication date: May 4, 2006Applicant: Sony CorporationInventors: Kyohei Koyabu, Shojiro Shibata, Shuji Tsunashima, Mototsugu Takamura, Shinjiro Kakita
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Publication number: 20060093322Abstract: A data processing apparatus for outputting a plurality of picture data forming reproduced data to a reproduction apparatus for reproduction, the data processing apparatus having a processing circuit for judging if the reproduction rate of the picture data by the reproduction apparatus is slower than a transfer rate for transferring the picture data to the reproduction apparatus and outputting all of the picture data forming the reproduced data to the reproduction apparatus when judging as a result of the judgment that the reproduction rate is slower than the transfer rate.Type: ApplicationFiled: October 25, 2005Publication date: May 4, 2006Applicant: SONY CORPORATIONInventors: Kyohei Koyabu, Shojiro Shibata, Shuji Tsunashima, Mototsugu Takamura, Shinjiro Kakita
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Publication number: 20060088285Abstract: A reproduction apparatus successively decoding and reproducing a plurality of picture data forming reproduced data, comprising a reproduction memory, a decoder decoding the picture data, writing the decoding results in the reproduction memory, and reproducing and outputting the decoding results read from the reproduction memory, and a processing circuit for performing decoding scheduling for determining an order of making the decoder decode picture data belonging to a group of picture data in units of groups of picture data comprised of a predetermined plurality of the picture data, generating scheduling result data including decoding order data indicating the determined order and validity data indicating validity of the picture data, selecting the picture data to be processed in the order determined by the decoding scheduling based on the scheduling result data, and, conditional on the selected picture data being valid, making the decoder decode and reproduce and output the picture data and, when receiving aType: ApplicationFiled: October 21, 2005Publication date: April 27, 2006Applicant: Sony CorporationInventors: Shuji Tsunashima, Shojiro Shibata, Mototsugu Takamura, Kyohei Koyabu, Shinjiro Kakita
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Publication number: 20060088295Abstract: A reproduction apparatus for successively decoding and reproducing a plurality of picture data, comprising a reproduction memory and a decoder for successively decoding the plurality of picture data in an order in accordance with a designated reproduction direction, writing the decoding results in the reproduction memory, and reproducing and outputting the decoding results read from the reproduction memory, the decoder holding the storage of the decoding results in the reproduction memory even after the decoding results stored in the reproduction memory are no longer used when continuing reproduction in the designated reproduction direction and, when receiving as input a reversal command of the reproduction direction, performing the reproduction and output using the decoding results already stored in the reproduction memory before the input of the reversal command.Type: ApplicationFiled: October 25, 2005Publication date: April 27, 2006Applicant: Sony CorporationInventors: Shuji Tsunashima, Shojiro Shibata, Mototsugu Takamura, Kyohei Koyabu, Shinjiro Kakita
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Publication number: 20060088286Abstract: An information processing apparatus for decoding compression-coded video data includes at least one decoder decoding the compression-coded video data, a supply controller controlling the supply of the compression-coded video data to the decoder, and a controller controlling processing executed by the supply controller and the decoder. The controller determines the order of decoding processing performed by the decoder so that, among pictures contained in a decoding processing unit for the decoding processing performed by the decoder, I-pictures and P-pictures are decoded before B-pictures. The controller selects pictures to be output from the decoder from among the pictures contained in the decoding processing unit on the basis of a playback speed instruction provided by a playback speed instruction unit.Type: ApplicationFiled: October 25, 2005Publication date: April 27, 2006Applicant: Sony CorporationInventors: Shojiro Shibata, Shuji Tsunashima, Kyohei Koyabu, Mototsugu Takamura, Shinjiro Kakita, Mitsuhisa Kaneko
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Publication number: 20060088278Abstract: A data processing apparatus outputting picture data to a reproduction apparatus reproducing a plurality of picture data in an order in accordance with a designated reproduction direction, the unit having a processing circuit outputting to the reproduction apparatus the picture data in an order in accordance with a reproduction direction designated in the reproduction apparatus and writing it into an input memory in the reproduction apparatus and, when reversing the reproduction direction designated at the reproduction apparatus, outputting the picture data to the reproduction apparatus conditional on the picture data to be used next in reproduction by the reproduction direction after reversal not being stored in the input memory.Type: ApplicationFiled: October 20, 2005Publication date: April 27, 2006Applicant: SONY CORPORATIONInventors: Kyohei Koyabu, Shojiro Shibata, Shuji Tsunashima, Mototsugu Takamura, Shinjiro Kakita
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Publication number: 20060088279Abstract: A reproduction apparatus for decoding and reproducing a plurality of picture data forming reproduced data in order, comprising a reproduction memory, a decoder for decoding the picture data, writing decoding results in the reproduction memory, and reproducing and outputting the decoding results read from the reproduction memory, and a processing circuit for performing decoding scheduling for determining an order of decoding the picture data at the decoder in predetermined units of a plurality of the picture data, selecting the picture data to be processed in the order determined by the decoding scheduling, determining whether to decode the selected picture data or reproduce and output the decoding results in accordance with a designated reproduction rate, and controlling the decoding and the reproduction and output of the decoder based on the decision.Type: ApplicationFiled: October 20, 2005Publication date: April 27, 2006Applicant: Sony CorporationInventors: Shuji Tsunashima, Shojiro Shibata, Mototsugu Takamura, Kyohei Koyabu, Shinjiro Kakita
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Publication number: 20050271288Abstract: The present invention is directed to an image information encoding apparatus adapted for performing intra-image encoding on the basis of resolution of color components and color space of an input image signal. In the image information encoding apparatus (10), an intra prediction unit (23) serves to adaptively change block size in generating a prediction image on the basis of a chroma format signal indicating whether resolution of color components is that of any one of 4:2:0 format, 4:2:2 format and 4:4:4 format, etc., and a color space signal indicating whether color space is any one of YCbCr, RGB and XYZ, etc. In addition, an orthogonal transform unit (14) and a quantization unit (15) serve to also change orthogonal transform technique and quantization technique in accordance with the chroma format signal and the color space signal. A reversible encoding unit (16) encodes the chroma format signal and the color space signal to include the encoded signals thus obtained into image compressed information.Type: ApplicationFiled: July 20, 2004Publication date: December 8, 2005Inventors: Teruhiko Suzuki, Akira Sugiyama, Kyohei Koyabu