Patents by Inventor Hiroshi Kusao
Hiroshi Kusao 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: 8488941Abstract: Necessary coded data only can be read out at random accessing even with recording medium having coded data recorded thereon but whose code quantity is out of proportion to time. Once a recording medium was loaded into a recorder-player connected with a coded-data control device, the device reads control data from the recording medium and stores the data in a coded data control portion. At random accessing, the control data is read-out from the coded-data control portion and entered into a recording medium controller which in turn controls the recording medium to read-out only desired data according to the information inputted from the coded data control portion. In random access playback, fast playback from the midway of a video-sequence can be realized by accessing coded data of a video frame by using control data.Type: GrantFiled: September 10, 2007Date of Patent: July 16, 2013Assignee: Sharp Kabushiki KaishaInventors: Masaaki Hyodo, Hiroshi Kusao
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Patent number: 7720308Abstract: Disclosed herein is a 3-D image display unit that can be controlled flexibly to protect the user from eyestrain and operated easily. The 3-D image display unit includes measuring means for measuring a display time of a 3-D image, parallax adjusting means for instructing 3-D image forming means to adjust the parallax of the 3-D image. In the case where the 3-D image display time measured by the measuring means exceeds a predetermined time, the parallax adjusting means instructs the 3-D image forming means to reduce the parallax of the 3-D image to be formed, thereby the display means comes to display a 3-D image having a small parallax. The user can thus be protected from eyestrain.Type: GrantFiled: September 26, 2003Date of Patent: May 18, 2010Assignee: Sharp Kabushiki KaishaInventors: Ryuji Kitaura, Hiroyuki Katata, Toshio Nomura, Norio Ito, Tomoko Aono, Maki Takahashi, Shinya Hasegawa, Tadashi Uchiumi, Motohiro Ito, Masatoshi Tsujimoto, Hiroshi Kusao
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Publication number: 20080069523Abstract: Necessary coded data only can be read out at random accessing even with recording medium having coded data recorded thereon but whose code quantity is out of proportion to time. Once a recording medium was loaded into a recorder-player connected with a coded-data control device, the device reads control data from the recording medium and stores the data in a coded data control portion. At random accessing, the control data is read-out from the coded-data control portion and entered into a recording medium controller which in turn controls the recording medium to read-out only desired data according to the information inputted from the coded data control portion. In random access playback, fast playback from the midway of a video-sequence can be realized by accessing coded data of a video frame by using control data.Type: ApplicationFiled: September 10, 2007Publication date: March 20, 2008Applicant: Sharp Kabushiki KaishaInventors: Masaaki Hyodo, Hiroshi Kusao
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Patent number: 7274858Abstract: Necessary coded data only can be read out at random accessing even with recording medium having coded data recorded thereon but whose code quantity is out of proportion to time. Once a recording medium was loaded into a recorder-player connected with a coded-data control device, the device reads control data from the recording medium and stores the data in a coded data control portion. At random accessing, the control data is read-out from the coded-data control portion and entered into a recording medium controller which in turn controls the recording medium to read-out only desired data according to the information inputted from the coded data control portion. In random access playback, fast playback from the midway of a video-sequence can be realized by accessing coded data of a video frame by using control data.Type: GrantFiled: November 10, 1999Date of Patent: September 25, 2007Assignee: Sharp Kabushiki KaishaInventors: Masaaki Hyodo, Hiroshi Kusao
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Publication number: 20060126919Abstract: Disclosed herein is a 3-D image display unit that can be controlled flexibly to protect the user from eyestrain and operated easily. The 3-D image display unit includes measuring means for measuring a display time of a 3-D image, parallax adjusting means for instructing 3-D image forming means to adjust the parallax of the 3-D image. In the case where the 3-D image display time measured by the measuring means exceeds a predetermined time, the parallax adjusting means instructs the 3-D image forming means to reduce the parallax of the 3-D image to be formed, thereby the display means comes to display a 3-D image having a small parallax. The user can thus be protected from eyestrain.Type: ApplicationFiled: September 26, 2003Publication date: June 15, 2006Applicant: Sharp Kabushiki KaishaInventors: Ryuji Kitaura, Hiroyuki Katata, Toshio Nomura, Norio Ito, Tomoko Aono, Maki Takahashi, Shinya Hasegawa, Tadashi Uchiumi, Motohiro Ito, Masatoshi Tsujimoto, Hiroshi Kusao
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Patent number: 6956974Abstract: An image encoder/decoder by which a partial image is encoded easily with a resolution meeting the user's demand, wherein the encoded amount of data is not increased and a necessary capacity of memory can be reduced. The image encoder has a tile decomposition portion which divides image data into tiles of N pixels×M pixels, a wavelet transform coding portion which extrapolates predetermined data at the peripheries of the tiles outputted from the tile decomposition portion and performs subdivision to perform wavelet encoding. A management information generating portion generates information for managing the encoded data in order that the encoded data outputted from the wavelet transform coding portion can be decoded for each tile and for each subband of the wavelet encoding. Also, a coded data integration portion links the encoded data encoded by wavelet encoding for each tile by using the output of the management information generating portion and adds the managing information to the encoded data.Type: GrantFiled: September 3, 1998Date of Patent: October 18, 2005Assignee: Sharp Kabushiki KaishaInventors: Norio Ito, Shinya Hasegawa, Hiroshi Kusao, Hiroyuki Katata, Tomoko Aono
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Publication number: 20050025239Abstract: A video coding device capable of adaptively processing input video data according to property of the data and realizing effective progressive transmission of the coded data even if image components are different in size and/or different in the number of subbands. The above-mentioned object can be realized by the provision of a transferring-order deciding and ranging portion that can prepare an integrated component unit by forming combinations of subband-based frequency-coefficients of respective components Y, U and V and can change the number of respective elements of respective components Y, U and V.Type: ApplicationFiled: July 8, 2004Publication date: February 3, 2005Applicant: Sharp KabushikiInventors: Tomoko Aono, Hisashi Saiga, Hiroyuki Katata, Hiroshi Kusao
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Patent number: 6813314Abstract: A video coding device capable of adaptively processing input video data according to property of the data and realizing effective progressive transmission of the coded data even if image components are different in size and/or different in the number of subbands. The above-mentioned object can be realized by the provision of a transferring-order deciding and ranging portion that can prepare an integrated component unit by forming combinations of subband-based frequency-coefficients of respective components Y, U and V and can change the number of respective elements of respective components Y, U and V.Type: GrantFiled: June 7, 2001Date of Patent: November 2, 2004Assignee: Sharp Kabushiki KaishaInventors: Tomoko Aono, Hisashi Saiga, Hiroyuki Katata, Hiroshi Kusao
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Publication number: 20040086043Abstract: When a background interpolation-judging section 107 judges that parts areas of a lower layer and an upper layer move significantly, and a visual effect can be obtained by the background interpolation, a controller 103 controls a switch 104 based on the area information of the parts area of the lower layer to perform the background interpolation. A weighted average section 106 takes an average by weighting to the upper layer and the lower layer by using the interpolated background to generate an interpolated image. By using this interpolated image, the prediction-encoding/decoding of the upper layer is performed. On the contrary, when the background interpolation-judging section 107 judges that parts areas do not move so significantly, and a visual effect cannot be obtained by the background interpolation, a background is synthesized by using the output of the interpolated image-forming section 105 to generate an interpolated image.Type: ApplicationFiled: October 30, 2003Publication date: May 6, 2004Applicant: Sharp Kabushiki KaishaInventors: Noiro Ito, Hiroyuki Katata, Tomoko Aono, Hiroshi Kusao
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Patent number: 6714591Abstract: A moving picture coder has a first coding mode in which the entire picture is coded and a second coding mode in which a partial region of the picture is coded. Coding is so performed that the frame rate inside the partial region is higher than that outside the partial region. To perform such coding, the coder comprises a region selecting section (201) for selecting the partial region, a shape coding section (202) for coding is the shape of the partial region, a moving picture coding section (204) for coding only the values of the pixels inside the partial region according to the selected region, and a coding control section (205). A moving picture decoder decodes a picture in the second mode by superimposing decoded picture data of the partial region of the picture in the second mode on the decoded picture data of the entire picture in the first mode.Type: GrantFiled: May 31, 2000Date of Patent: March 30, 2004Assignee: Sharp Kabushiki KaishaInventors: Hiroyuki Katata, Tomoko Aono, Hiroshi Kusao
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Patent number: 6693960Abstract: When a background interpolation-judging section 107 judges that parts areas of a lower layer and an upper layer move significantly, and a visual effect can be obtained by the background interpolation, a controller 103 controls a switch 104 based on the area information of the parts area of the lower layer to perform the background interpolation. A weighted average section 106 takes an average by weighting to the upper layer and the lower layer by using the interpolated background to generate an interpolated image. By using this interpolated image, the prediction-encoding/decoding of the upper layer is performed. On the contrary, when the background interpolation-judging section 107 judges that parts areas do not move so significantly, and a visual effect cannot be obtained by the background interpolation, a background is synthesized by using the output of the interpolated image-forming section 105 to generate an interpolated image.Type: GrantFiled: February 17, 1999Date of Patent: February 17, 2004Assignee: Sharp Kabushiki KaishaInventors: Norio Ito, Hiroyuki Katata, Tomoko Aono, Hiroshi Kusao
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Patent number: 6678326Abstract: A motion picture coding and decoding apparatus synthesizes a lower layer frame at a certain time by using first component area information of a lower layer preceding in the time and second component area information of a lower layer succeeding in the time. For an area where the first and second component areas overlapped, or for an area which is neither the first nor the second component area on the lower layer frame, lower layer frames preceding and succeeding in time are subjected to weighted average for synthetisization. For the area corresponding to the first component area only, the lower layer frame succeeding in time is used, and for the area corresponding to the second component area only on the synthesized lower layer frame, the lower layer frame preceding in time is used, for synthesizing the lower layer.Type: GrantFiled: September 3, 2002Date of Patent: January 13, 2004Assignee: Sharp Kabushiki KaishaInventors: Hiroyuki Katata, Norio Ito, Tomoko Aono, Hiroshi Kusao, Shuichi Watanabe
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Patent number: 6671412Abstract: An image coding apparatus inputs pixel data of a part image of high resolution. An upper layer coding portion (101), a second shape data generating portion (102), and a second shape data coding portion (103) perform coding of shape data and pixel data in the upper layer. A down sampling portion (104) generates pixel data of low resolution. A lower layer coding portion (105), a first shape data generating portion (106), and a first shape data coding portion (107) code shape data and pixel data in the lower layer.Type: GrantFiled: January 28, 2003Date of Patent: December 30, 2003Assignee: Sharp Kabushiki KaishaInventors: Hiroyuki Katata, Hiroshi Kusao, Tomoko Aono, Norio Ito, Shuichi Watanabe
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Publication number: 20030113028Abstract: An image coding apparatus inputs pixel data of a part image of high resolution. An upper layer coding portion (101), a second shape data generating portion (102), and a second shape data coding portion (103) perform coding of shape data and pixel data in the upper layer. A down sampling portion (104) generates pixel data of low resolution. A lower layer coding portion (105), a first shape data generating portion (106), and a first shape data coding portion (107) code shape data and pixel data in the lower layer.Type: ApplicationFiled: January 28, 2003Publication date: June 19, 2003Applicant: Sharp Kabushiki KaishaInventors: Hiroyuki Katata, Hiroshi Kusao, Tomoko Aono, Norio Ito, Shuichi Watanabe
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Patent number: 6546142Abstract: An image coding apparatus inputs pixel data of a part image of high resolution. An upper layer coding portion (101), a second shape data generating portion (102), and a second shape data coding portion (103) perform coding of shape data and pixel data in the upper layer. A down sampling portion (104) generates pixel data of low resolution. A lower layer coding portion (105), a first shape data generating portion (106), and a first shape data coding portion (107) code shape data and pixel data in the lower layer.Type: GrantFiled: July 31, 2001Date of Patent: April 8, 2003Assignee: Sharp Kabushiki KaishaInventors: Hiroyuki Katata, Hiroshi Kusao, Tomoko Aono, Norio Ito, Shuichi Watanabe
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Patent number: 6529636Abstract: If coding is carried out on the block basis on subband coding of an image, the hierarchical characteristic which a subband image inherently has would be lost. Thus, efficient coding is to be carried out while holding the hierarchical characteristic of the subband image. After the subband image is coded on the block basis, symbol information and coefficient information are decomposed and relocated for every subband before producing coded data.Type: GrantFiled: October 25, 1999Date of Patent: March 4, 2003Assignee: Sharp Kabushiki KaishaInventors: Tomoko Aono, Norio Ito, Hiroyuki Katata, Hiroshi Kusao
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Publication number: 20030016746Abstract: When a background interpolation-judging section 107 judges that parts areas of a lower layer and an upper layer move significantly, and a visual effect can be obtained by the background interpolation, a controller 103 controls a switch 104 based on the area information of the parts area of the lower layer to perform the background interpolation. A weighted average section 106 takes an average by weighting to the upper layer and the lower layer by using the interpolated background to generate an interpolated image. By using this interpolated image, the prediction-encoding/decoding of the upper layer is performed. On the contrary, when the background interpolation-judging section 107 judges that parts areas do not move so significantly, and a visual effect cannot be obtained by the background interpolation, a background is synthesized by using the output of the interpolated image-forming section 105 to generate an interpolated image.Type: ApplicationFiled: February 17, 1999Publication date: January 23, 2003Inventors: NORIO ITO, HIROYUKI KATATA, TOMOKO AONO, HIROSHI KUSAO
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Publication number: 20030007557Abstract: A motion picture coding and decoding apparatus synthesizes a lower layer frame at a certain time by using first component area information of a lower layer preceding in the time and second component area information of a lower layer succeeding in the time. For an area where the first and second component areas overlapped, or for an area which is neither the first nor the second component area on the lower layer frame, lower layer frames preceding and succeeding in time are subjected to weighted average for synthetisization. For the area corresponding to the first component area only, the lower layer frame succeeding in time is used, and for the area corresponding to the second component area only on the synthesized lower layer frame, the lower layer frame preceding in time is used, for synthesizing the lower layer.Type: ApplicationFiled: September 3, 2002Publication date: January 9, 2003Applicant: Sharp Kabushiki KaishaInventors: Hiroyuki Katata, Norio Ito, Tomoko Aono, Hiroshi Kusao, Shuichi Watanabe
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Patent number: 6466622Abstract: A motion picture coding and decoding apparatus synthesizes a lower layer frame at a certain time by using first component area information of a lower layer preceding in the time and second component area information of a lower layer succeeding in the time. For an area where the first and second component areas overlapped, or for an area which is neither the first nor the second component area on the lower layer frame, lower layer frames preceding and succeeding in time are subjected to weighted average for synthetisization. For the area corresponding to the first component area only, the lower layer frame succeeding in time is used, and for the area corresponding to the second component area only on the synthesized lower layer frame, the lower layer frame preceding in time is used, for synthesizing the lower layer.Type: GrantFiled: May 18, 2001Date of Patent: October 15, 2002Assignee: Sharp Kabushiki KaishaInventors: Hiroyuki Katata, Norio Ito, Tomoko Aono, Hiroshi Kusao, Shuichi Watanabe
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Patent number: 6343100Abstract: In a motion-vector detecting device for detecting motion-vectors of images processed through a two-dimensional filter by a subsampling method, a filter circuit must process pixel values at a block boundary by delaying the pixel value in both horizontal and vertical directions, which complicates reading pixel data from memory and increases the size of the filter circuit. The present invention provides a motion-vector detecting device for detecting motion-vectors by searching a match of a coding block of a coding image with a prediction candidate-block in a searching area of a reference image.Type: GrantFiled: May 28, 1998Date of Patent: January 29, 2002Assignee: Sharp Kabushiki KaishaInventors: Yoichi Fujiwara, Tadao Matsuura, Hiroshi Kusao