Patents by Inventor Kenshi Dachiku
Kenshi Dachiku 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: 20060195763Abstract: An output coding apparatus includes a coder for coding an inputted bitstream to an error correction and/or detection code composed of information bits and check bits; and a bitstream assembling section for assembling an outputted bitstream by inserting a synchronization code at any one of a plurality of synchronization code insertion positions previously determined in the outputted bitstream, arranging the information bits at any desired positions of the bitstream, and by arranging the check bits at positions other than the synchronization code insertion positions in the bitstream. Therefore, when the coding apparatus is combined with a resynchronization method using both an error correction and/or detection code and a synchronization code, it is possible to solve a problem caused by pseudo-synchronization or synchronization-loss pull-out or step-out due to erroneous detection of the synchronization code.Type: ApplicationFiled: April 27, 2006Publication date: August 31, 2006Applicant: Kabushiki Kaisha ToshibaInventors: Yoshihiro Kikuchi, Toshiaki Watanabe, Kenshi Dachiku, Takeshi Chujoh, Takeshi Nagai
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Patent number: 7093170Abstract: An output coding apparatus includes a coder for coding an inputted bitstream to an error correction and/or detection code composed of information bits and check bits; and a bitstream assembling section for assembling an outputted bitstream by inserting a synchronization code at any one of a plurality of synchronization code insertion positions previously determined in the outputted bitstream, arranging the information bits at any desired positions of the bitstream, and by arranging the check bits at positions other than the synchronization code insertion positions in the bitstream. Therefore, when the coding apparatus is combined with a resynchronization method using both an error correction and/or detection code and a synchronization code, it is possible to solve a problem caused by pseudo-synchronization or synchronization-loss pull-out or step-out due to erroneous detection of the synchronization code.Type: GrantFiled: October 24, 2002Date of Patent: August 15, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiro Kikuchi, Toshiaki Watanabe, Kenshi Dachiku, Takeshi Chujoh, Takeshi Nagai
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Patent number: 7054495Abstract: An image data coding system comprises a screen-area determining means for determining the area of a screen reproduced on the basis of an input image data; a code-amount assigning control means for controlling regions to which data on the screen are to be assigned and the code amount assigned to each of the regions, on the basis of the results determined on the area of the reproduced screen; and a coding means for coding the image data signal inputted in accordance with the code amount assigned to each of the regions. In an image data coding and/or decoding system, a coding system performs the two-dimensional orthogonal transform of picture signals of all the pixels with respect to inside blocks and of only picture signals of pixels contained in a content with respect to edge blocks, in accordance with a map signal indicative of the position and shape of the content, and it codes the map signal.Type: GrantFiled: January 21, 2005Date of Patent: May 30, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Noboru Yamaguchi, Toshiaki Watanabe, Kenshi Dachiku, Yoshihiro Kikuchi, Takashi Ida, Takeshi Chujoh
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Patent number: 7051248Abstract: An output coding apparatus includes a coder for coding an inputted bitstream to an error correction and/or detection code composed of information bits and check bits; and a bitstream assembling section for assembling an outputted bitstream by inserting a synchronization code at any one of a plurality of synchronization code insertion positions previously determined in the outputted bitstream, arranging the information bits at any desired positions of the bitstream, and by arranging the check bits at positions other than the synchronization code insertion positions in the bitstream. Therefore, when the coding apparatus is combined with a resynchronization method using both an error correction and/or detection code and a synchronization code, it is possible to solve a problem caused by pseudo-synchronization or synchronization-loss pull-out or step-out due to erroneous detection of the synchronization code.Type: GrantFiled: October 24, 2002Date of Patent: May 23, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiro Kikuchi, Toshiaki Watanabe, Kenshi Dachiku, Takeshi Chujoh, Takeshi Nagai
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Patent number: 7051247Abstract: In a coding system wherein an error correction/detect-ion coding is combined with a synchronization recovering technique using a synchronization code, the problems of a pseudo synchronization and a step out due to error detect-ion are solved. There is provided a coding part for coding an input multiplexed code string to an error correcting-/detecting code comprising an information bit and a check bit, and code string assembling part for inserting a synchronization code into any one of a plurality of periodically predetermined synchronization code inserting positions in a code string, for arranging the information bit at an optional position in the code string, and for arranging the check bit at a position other than the synchronization code inserting positions in the code string to assemble an output code string.Type: GrantFiled: October 24, 2001Date of Patent: May 23, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiro Kikuchi, Toshiaki Watanabe, Kenshi Dachiku, Takeshi Chujoh, Takeshi Nagai
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Patent number: 7032137Abstract: In a coding system wherein an error correction/detect-ion coding is combined with a synchronization recovering technique using a synchronization code, the problems of a pseudo synchronization and a step out due to error detect-ion are solved. There is provided a coding part for coding an input multiplexed code string to an error correcting/detecting code comprising an information bit and a check bit, and code string assembling part for inserting a synchronization code into any one of a plurality of periodically predetermined synchronization code inserting positions in a code string, for arranging the information bit at an optional position in the code string, and for arranging the check bit at a position other than the synchronization code inserting positions in the code string to assemble an output code string.Type: GrantFiled: October 24, 2001Date of Patent: April 18, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiro Kikuchi, Toshiaki Watanabe, Kenshi Dachiku, Takeshi Chujoh, Takeshi Nagai
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Publication number: 20050229078Abstract: In a coding system wherein an error correction/detect-ion coding is combined with a synchronization recovering technique using a synchronization code, the problems of a pseudo synchronization and a step out due to error detect-ion are solved. There is provided a coding part 212 for coding an input multiplexed code string 201 to an error correcting-/detecting code comprising an information bit and a check bit, and code string assembling part 213 for inserting a synchronization code into any one of a plurality of periodically predetermined synchronization code inserting positions in the code string 201, for arranging the information bit at an optional position in the code string, and for arranging the check bit at a position other than the synchronization code inserting positions in the code string 201 to assemble an output code string 205.Type: ApplicationFiled: May 12, 2005Publication date: October 13, 2005Applicant: Kabushiki Kaisha ToshibaInventors: Yoshihiro Kikuchi, Toshiaki Watanabe, Kenshi Dachiku, Takeshi Chujoh, Takeshi Nagai
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Publication number: 20050229079Abstract: In a coding system wherein an error correction/detect-ion coding is combined with a synchronization recovering technique using a synchronization code, the problems of a pseudo synchronization and a step out due to error detect-ion are solved. There is provided a coding part 212 for coding an input multiplexed code string 201 to an error correcting-/detecting code comprising an information bit and a check bit, and code string assembling part 213 for inserting a synchronization code into any one of a plurality of periodically predetermined synchronization code inserting positions in the code string 201, for arranging the information bit at an optional position in the code string, and for arranging the check bit at a position other than the synchronization code inserting positions in the code string 201 to assemble an output code string 205.Type: ApplicationFiled: May 12, 2005Publication date: October 13, 2005Applicant: Kabushiki Kaisha ToshibaInventors: Yoshihiro Kikuchi, Toshiaki Watanabe, Kenshi Dachiku, Takeshi Chujoh, Takeshi Nagai
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Patent number: 6918080Abstract: In a coding system wherein an error correction/detect-ion coding is combined with a synchronization recovering technique using a synchronization code, the problems of a pseudo synchronization and a step out due to error detect-ion are solved. There is provided a coding part 212 for coding an input multiplexed code string 201 to an error correcting-/detecting code comprising an information bit and a check bit, and code string assembling part 213 for inserting a synchronization code into any one of a plurality of periodically predetermined synchronization code inserting positions in the code string 201, for arranging the information bit at an optional position in the code string, and for arranging the check bit at a position other than the synchronization code inserting positions in the code string 201 to assemble an output code string 205.Type: GrantFiled: December 21, 2001Date of Patent: July 12, 2005Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiro Kikuchi, Toshiaki Watanabe, Kenshi Dachiku, Takeshi Chujoh, Takeshi Nagai
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Publication number: 20050129321Abstract: An image data coding system comprises a screen-area determining means for determining the area of a screen reproduced on the basis of an input image data; a code-amount assigning control means for controlling regions to which data on the screen are to be assigned and the code amount assigned to each of the regions, on the basis of the results determined on the area of the reproduced screen; and a coding means for coding the image data signal inputted in accordance with the code amount assigned to each of the regions. In an image data coding and/or decoding system, a coding system performs the two-dimensional orthogonal transform of picture signals of all the pixels with respect to inside blocks and of only picture signals of pixels contained in a content with respect to edge blocks, in accordance with a map signal indicative of the position and shape of the content, and it codes the map signal.Type: ApplicationFiled: January 21, 2005Publication date: June 16, 2005Applicant: Kabushiki kaisha ToshibaInventors: Nororu Yamaguchi, Toshiaki Watahabe, Kenshi Dachiku, Yoshihiro Kikuchi, Takashi Ida, Takeshi Chujoh
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Patent number: 6868184Abstract: A method or apparatus for decoding an image data comprising decoding a coded map signal indicative of a position and shade of a content in a screen inputted for every block of picture signals; decoding coded orthogonal transform coefficients and an average value of pixels inside of the content; performing a two-dimensional inverse orthogonal transform of an orthogonal transform coefficient; and deriving a regenerative picture signal by synthesizing results of the two-dimensional inverse orthogonal transform, with the average value.Type: GrantFiled: April 25, 2003Date of Patent: March 15, 2005Assignee: Kabushiki Kaisha ToshibaInventors: Noboru Yamaguchi, Toshiaki Watanabe, Kenshi Dachiku, Yoshihiro Kikuchi, Takashi Ida, Takeshi Chujoh
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Patent number: 6857100Abstract: In a coding system wherein an error correction/detect-ion coding is combined with a synchronization recovering technique using a synchronization code, the problems of a pseudo synchronization and a step out due to error detect-ion are solved. There is provided a coding part for coding an input multiplexed code string to an error correcting/detecting code comprising an information bit and a check bit, and code string assembling part for inserting a synchronization code into any one of a plurality of periodically predetermined synchronization code inserting positions in a code string, for arranging the information bit at an optional position in the code string, and for arranging the check bit at a position other than the synchronization code inserting positions in the code string to assemble an output code string.Type: GrantFiled: October 24, 2001Date of Patent: February 15, 2005Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiro Kikuchi, Toshiaki Watanabe, Kenshi Dachiku, Takeshi Chujoh, Takeshi Nagai
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Patent number: 6826308Abstract: A method and apparatus for decoding an image data comprising decoding a coded map signal indicative of a position and shape of a content in a screen inputted for every block of picture signals, decoding coded orthogonal transform coefficients; performing an inverse orthogonal transform of the orthogonal transform coefficient; and deriving a regenerative picture signal on the basis of the results of the inverse orthogonal transform, wherein a two-dimensional orthogonal transform of all the coefficients with respect to blocks located inside of a content among the orthogonal transform coefficients is performed, and the inverse orthogonal transform of only the coefficients contained in the content with respect to the blocks containing a boundary portion of the content is performed.Type: GrantFiled: April 25, 2003Date of Patent: November 30, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Noboru Yamaguchi, Toshiaki Watanabe, Kenshi Dachiku, Yoshihiro Kikuchi, Takashi Ida, Takeshi Chujoh
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Patent number: 6823484Abstract: In a coding system wherein an error correction/detection coding is combined with a synchronization recovering technique using a synchronization code, the problems of a pseudo synchronization and a step out due to error detection are solved. There is provided a coding part for coding an input multiplexed code string to an error correcting/detecting code comprising an information bit and a check bit, and code string assembling part for inserting a synchronization code into any one of a plurality of periodically predetermined synchronization code inserting positions in a code string, for arranging the information bit at an optional position in the code string, and for arranging the check bit at a position other than the synchronization code inserting positions in the code string to assemble an output code string.Type: GrantFiled: October 24, 2001Date of Patent: November 23, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiro Kikuchi, Toshiaki Watanabe, Kenshi Dachiku, Takeshi Chujoh, Takeshi Nagai
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Patent number: 6714684Abstract: System consistent with this invention comprise a first coding part configured to code a map signal indicative of the position and shape of a content in a screen inputted for every square block of picture signals to be coded, a subband dividing part configured to divide the picture signals into a plurality of subband picture signals, a resolution transform part configured to perform the resolution transform of the map signal into the resolution of each of the subband picture signals divided by the subband dividing part, and a second coding part configured to code each of the subband picture signals divided by the subband dividing part when blocks are inside of the content, and coding only the signals inside of the content when the blocks contain the boundary portion of the content in the subband picture signals according to the map signal resolution-transformed by the resolution transform part.Type: GrantFiled: November 5, 2002Date of Patent: March 30, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Noboru Yamaguchi, Toshiaki Watanabe, Kenshi Dachiku, Yoshihiro Kikuchi, Takashi Ida, Takeshi Chujoh
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Patent number: 6701018Abstract: An input image signal is coded by an encoder to be outputted as a basic code string, and the basic code string is delayed by a code-string delay circuit for a predetermined period of time to be outputted as an additional code string. The basic code string is synthesized with the additional code string by a code-string synthesizer to be outputted as an output code string. Thus, there is provided an image data coding system which can quickly restore data even if the data is lost due to error and in which the increased code amount is less than the cycle refresh and the error correction.Type: GrantFiled: January 29, 2002Date of Patent: March 2, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Takeshi Nagai, Kenshi Dachiku, Takeshi Chujoh, Yoshihiro Kikuchi, Toshiaki Watanabe
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Patent number: 6697531Abstract: In an image data coding and/or decoding system, a coding system performs the two-dimensional orthogonal transform of picture signals of all the pixels with respect to inside blocks and of only picture signals of pixels contained in a content with respect to edge blocks, in accordance with a map signal indicative of the position and shape of the content, and it codes the map signal. A decoding system selects an orthogonal transform coefficient necessary to reproduce an image of a desired resolution, from coded orthogonal coefficients on the basis of a coded and resolution-transformed map signal, and it performs the two-dimensional inverse orthogonal transform of all the coefficients with respect to the inside blocks and of only the coefficients contained in the content with respect to the edge blocks, to derive a resolution-transformed regenerative signal.Type: GrantFiled: April 25, 2003Date of Patent: February 24, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Noboru Yamaguchi, Toshiaki Watanabe, Kenshi Dachiku, Yoshihiro Kikuchi, Takashi Ida, Takeshi Chujoh
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Publication number: 20030206660Abstract: An image data coding system comprises a screen-area determining means for determining the area of a screen reproduced on the basis of an input image data; a code-amount assigning control means for controlling regions to which data on the screen are to be assigned and the code amount assigned to each of the regions, on the basis of the results determined on the area of the reproduced screen; and a coding means for coding the image data signal inputted in accordance with the code amount assigned to each of the regions.Type: ApplicationFiled: April 25, 2003Publication date: November 6, 2003Applicant: Kabushiki Kaisha ToshibaInventors: Noboru Yamaguchi, Toshiaki Watanabe, Kenshi Dachiku, Yoshihiro Kikuchi, Takashi Ida, Takeshi Chujoh
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Patent number: 6643403Abstract: An input image signal is coded by an encoder to be outputted as a basic code string, and the basic code string is delayed by a code-string delay circuit for a predetermined period of time to be outputted as an additional code string. The basic code string is synthesized with the additional code string by a code-string synthesizer to be outputted as an output code string. Thus, there is provided an image data coding system which can quickly restore data even if the data is lost due to error and in which the increased code amount is less than the cycle refresh and the error correction.Type: GrantFiled: March 19, 2002Date of Patent: November 4, 2003Assignee: Kabushiki Kaisha ToshibaInventors: Takeshi Nagai, Kenshi Dachiku, Takeshi Chujoh, Yoshihiro Kikuchi, Toshiaki Watanabe
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Patent number: 6643404Abstract: An input image signal is coded by an encoder to be outputted as a basic code string, and the basic code string is delayed by a code-string delay circuit for a predetermined period of time to be outputted as an additional code string. The basic code string is synthesized with the additional code string by a code-string synthesizer to be outputted as an output code string. Thus, there is provided an image data coding system which can quickly restore data even if the data is lost due to error and in which the increased code amount is less than the cycle refresh and the error correction.Type: GrantFiled: March 19, 2002Date of Patent: November 4, 2003Assignee: Kabushiki Kaisha ToshibaInventors: Takeshi Nagai, Kenshi Dachiku, Takeshi Chujoh, Yoshihiro Kikuchi, Toshiaki Watanabe