Patents by Inventor Hiroyuki Katata

Hiroyuki Katata 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).

  • Publication number: 20050147309
    Abstract: A sub-sampling portion (101) sub-samples images of data corresponding to the left and right viewpoints. A joining method selector (104) selects the joining method that minimizes the discontinuity at the boundary in the joined image when the sub-sampled images of data are joined. A joining portion (102) joins the plurality of images data, based on the selected joining method. An encoder (103) encodes the joined image data, and a joining method encoder (105) encodes the information of the joining method. A multiplexer (106) multiplexes these pieces of coded data. In this way, the continuity of the joined image is improved, whereby the coding efficiency is enhanced.
    Type: Application
    Filed: April 25, 2003
    Publication date: July 7, 2005
    Inventors: Hiroyuki Katata, Tadashi Uchiumi, Takashi Yasumoto, Shinya Hasegawa, Shingo Nagataki, Shingo Nagataki, Masatoshi Tsujimoto, Motohiro Itoh
  • Publication number: 20050036373
    Abstract: A removable recording medium having an area for storing a content and, when attached to a reproducing apparatus, allowing the content recorded in the area to be reproduced is arranged so as to include, separately from the area for storing the content, an area for storing one or more conditions that allow the content to be reproduced by the reproducing apparatus. With this arrangement, by pre-recording on the recording medium, information for allowing the reproducing apparatus to reproduce a content, the recording apparatus can automatically perform processing such as encoding to a content in accordance with the information recorded on the recording medium and then record the content on the recording medium; and the reproducing apparatus can unconditionally reproduce a content recorded on the recording medium.
    Type: Application
    Filed: November 15, 2002
    Publication date: February 17, 2005
    Inventors: Tomoko Aono, Kazuto Ohhara, Toshio Nomura, Motohiro Ito, Hiroyuki Katata
  • Publication number: 20050025239
    Abstract: 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: Application
    Filed: July 8, 2004
    Publication date: February 3, 2005
    Applicant: Sharp Kabushiki
    Inventors: Tomoko Aono, Hisashi Saiga, Hiroyuki Katata, Hiroshi Kusao
  • Patent number: 6813314
    Abstract: 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: Grant
    Filed: June 7, 2001
    Date of Patent: November 2, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomoko Aono, Hisashi Saiga, Hiroyuki Katata, Hiroshi Kusao
  • Publication number: 20040190626
    Abstract: Adjacent regions are identified in an image. Coding parameters for the adjacent regions are identified. Selective filtering is performed at the region between the identified adjacent regions.
    Type: Application
    Filed: March 11, 2004
    Publication date: September 30, 2004
    Inventors: Shijun Sun, Shawmin Lei, Hiroyuki Katata
  • Publication number: 20040086043
    Abstract: 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: Application
    Filed: October 30, 2003
    Publication date: May 6, 2004
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Noiro Ito, Hiroyuki Katata, Tomoko Aono, Hiroshi Kusao
  • Patent number: 6714591
    Abstract: 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: Grant
    Filed: May 31, 2000
    Date of Patent: March 30, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Katata, Tomoko Aono, Hiroshi Kusao
  • Patent number: 6693960
    Abstract: 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: Grant
    Filed: February 17, 1999
    Date of Patent: February 17, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Norio Ito, Hiroyuki Katata, Tomoko Aono, Hiroshi Kusao
  • Patent number: 6678326
    Abstract: 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: Grant
    Filed: September 3, 2002
    Date of Patent: January 13, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Katata, Norio Ito, Tomoko Aono, Hiroshi Kusao, Shuichi Watanabe
  • Patent number: 6671412
    Abstract: 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: Grant
    Filed: January 28, 2003
    Date of Patent: December 30, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Katata, Hiroshi Kusao, Tomoko Aono, Norio Ito, Shuichi Watanabe
  • Publication number: 20030113028
    Abstract: 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: Application
    Filed: January 28, 2003
    Publication date: June 19, 2003
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Katata, Hiroshi Kusao, Tomoko Aono, Norio Ito, Shuichi Watanabe
  • Patent number: 6546142
    Abstract: 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: Grant
    Filed: July 31, 2001
    Date of Patent: April 8, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Katata, Hiroshi Kusao, Tomoko Aono, Norio Ito, Shuichi Watanabe
  • Patent number: 6529636
    Abstract: 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: Grant
    Filed: October 25, 1999
    Date of Patent: March 4, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomoko Aono, Norio Ito, Hiroyuki Katata, Hiroshi Kusao
  • Publication number: 20030016746
    Abstract: 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: Application
    Filed: February 17, 1999
    Publication date: January 23, 2003
    Inventors: NORIO ITO, HIROYUKI KATATA, TOMOKO AONO, HIROSHI KUSAO
  • Publication number: 20030007557
    Abstract: 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: Application
    Filed: September 3, 2002
    Publication date: January 9, 2003
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Katata, Norio Ito, Tomoko Aono, Hiroshi Kusao, Shuichi Watanabe
  • Patent number: 6466622
    Abstract: 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: Grant
    Filed: May 18, 2001
    Date of Patent: October 15, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Katata, Norio Ito, Tomoko Aono, Hiroshi Kusao, Shuichi Watanabe
  • Publication number: 20020009234
    Abstract: 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: Application
    Filed: July 31, 2001
    Publication date: January 24, 2002
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Katata, Hiroshi Kusao, Tomoko Aono, Norio Ito, Shuichi Watanabe
  • Publication number: 20020009142
    Abstract: 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: Application
    Filed: June 7, 2001
    Publication date: January 24, 2002
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tomoko Aono, Hisashi Saiga, Hiroyuki Katata, Hiroshi Kusao
  • Patent number: 6324215
    Abstract: 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: Grant
    Filed: September 15, 2000
    Date of Patent: November 27, 2001
    Assignee: Sharp :Kabushiki Kaisha
    Inventors: Hiroyuki Katata, Norio Ito, Tomoko Aono, Hiroshi Kusao, Shuichi Watanabe
  • Publication number: 20010026586
    Abstract: 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: Application
    Filed: May 18, 2001
    Publication date: October 4, 2001
    Applicant: Sharp Kabushiki
    Inventors: Hiroyuki Katata, Norio Ito, Tomoko Aono, Hiroshi Kusao, Shuichi Watanabe