Patents by Inventor Minoru Etoh

Minoru Etoh 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).

  • Patent number: 10158871
    Abstract: A video processing system provided with video encoding apparatus 1 and video decoding apparatus 2. The encoding apparatus 1 outputs a maximum delay time that is incurred by backward prediction, in addition to encoded data D1 resulting from encoding of video data D0. The decoding apparatus 2 effects input of the maximum delay time that is incurred by backward prediction, in addition to encoded data D1 from the encoding apparatus 1. Then the decoding apparatus 2 decodes the encoded data D1 with reference to the input maximum delay time to generate motion video data D2.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: December 18, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Satoru Adachi, Choong Seng Boon, Sadaatsu Kato, Minoru Etoh, Thiow Keng Tan
  • Patent number: 10009627
    Abstract: A video processing system 100 is provided with video encoding device 10 and video decoding device 20. The video encoding device 10 implements backward interframe prediction from a temporally subsequent frame and outputs information indicating that an option to eliminate use of a decoded image of the temporally subsequent frame was chosen. The video decoding device 20 eliminates use of the decoded image of the frame on the basis of this information, in conjunction with input of the information for eliminating use of the decoded image of the temporally subsequent frame.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: June 26, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Satoru Adachi, Choong Seng Boon, Sadaatsu Kato, Minoru Etoh, Thiow Keng Tan
  • Publication number: 20180077422
    Abstract: A video processing system provided with video encoding apparatus 1 and video decoding apparatus 2. The encoding apparatus 1 outputs a maximum delay time that is incurred by backward prediction, in addition to encoded data D1 resulting from encoding of video data D0. The decoding apparatus 2 effects input of the maximum delay time that is incurred by backward prediction, in addition to encoded data D1 from the encoding apparatus 1. Then the decoding apparatus 2 decodes the encoded data D1 with reference to the input maximum delay time to generate motion video data D2.
    Type: Application
    Filed: November 17, 2017
    Publication date: March 15, 2018
    Inventors: Satoru ADACHI, Choong Seng BOON, Sadaatsu KATO, Minoru ETOH, Thiow Keng TAN
  • Patent number: 9826228
    Abstract: A video processing system is provided with video encoding apparatus 1 and video decoding apparatus 2. The encoding apparatus 1 outputs a maximum delay time that is incurred by backward prediction, in addition to encoded data D1 resulting from encoding of video data D0. The decoding apparatus 2 effects input of the maximum delay time that is incurred by backward prediction, in addition to encoded data D1 from the encoding apparatus 1. Then the decoding apparatus 2 decodes the encoded data D1 with reference to the input maximum delay time to generate motion video data D2.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: November 21, 2017
    Assignee: NTT DOCOMO, INC.
    Inventors: Satoru Adachi, Choong Seng Boon, Sadaatsu Kato, Minoru Etoh, Thiow Keng Tan
  • Publication number: 20170251223
    Abstract: A video processing system 100 is provided with video encoding device 10 and video decoding device 20. The video encoding device 10 implements backward interframe prediction from a temporally subsequent frame and outputs information indicating that an option to eliminate use of a decoded image of the temporally subsequent frame was chosen. The video decoding device 20 eliminates use of the decoded image of the frame on the basis of this information, in conjunction with input of the information for eliminating use of the decoded image of the temporally subsequent frame.
    Type: Application
    Filed: May 17, 2017
    Publication date: August 31, 2017
    Inventors: Satoru ADACHI, Choong Seng BOON, Sadaatsu KATO, Minoru ETOH, Thiow Keng TAN
  • Patent number: 9686563
    Abstract: A video processing system 100 is provided with video encoding device 10 and video decoding device 20. The video encoding device 10 implements backward interframe prediction from a temporally subsequent frame and outputs information indicating that an option to eliminate use of a decoded image of the temporally subsequent frame was chosen. The video decoding device 20 eliminates use of the decoded image of the frame on the basis of this information, in conjunction with input of the information for eliminating use of the decoded image of the temporally subsequent frame.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: June 20, 2017
    Assignee: NTT DOCOMO, INC.
    Inventors: Satoru Adachi, Choong Seng Boon, Sadaatsu Kato, Minoru Etoh, Thiow Keng Tan
  • Patent number: 8965126
    Abstract: A character recognition device includes image input unit that receives an image, character region detection unit that detects a character region in the image, character region separation unit that separates the character region on a character-by-character basis, character recognition unit that performs character-by-character recognition on the characters present in separated regions and outputs one or more character recognition result candidates for each character, first character string transition data creation unit that receives the candidates, calculates weights for transitions to the candidates and creates first character string transition data based on a set of the candidates and the weights, and WFST processing unit that sequentially performs state transitions based on the first character string transition data, accumulates weights in each state transition and calculates a cumulative weight for each state transition, and outputs one or more state transition results based on the cumulative weight.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: February 24, 2015
    Assignee: NTT DOCOMO, INC.
    Inventors: Takafumi Yamazoe, Minoru Etoh, Takeshi Yoshimura, Kosuke Tsujino
  • Patent number: 8842728
    Abstract: A video processing system is provided with video encoding apparatus 1 and video decoding apparatus 2. The encoding apparatus 1 outputs a maximum delay time that is incurred by backward prediction, in addition to encoded data D1 resulting from encoding of video data D0. The decoding apparatus 2 effects input of the maximum delay time that is incurred by backward prediction, in addition to encoded data D1 from the encoding apparatus 1. Then the decoding apparatus 2 decodes the encoded data D1 with reference to the input maximum delay time to generate motion video data D2.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: September 23, 2014
    Assignee: NTT DoCoMo, Inc.
    Inventors: Satoru Adachi, Chong Seng Boon, Sadaatsu Kato, Minoru Etoh, Thiow Keng Tan
  • Patent number: 8488671
    Abstract: A moving picture encoding device for encoding a moving picture constituted of a time sequence of frame pictures by motion compensation, the device including: a reference picture generation section configured to generate a reference picture subjected to predetermined picture processing from a reference frame picture, in accordance with an encoding condition of a predetermined area to be encoded; and a motion compensation section configured to calculate a motion compensation value for the predetermined area to be encoded, by using a generated reference picture subjected to the predetermined picture processing.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: July 16, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Minoru Etoh, Satoru Adachi, Mitsuru Kobayashi, Sadaatsu Kato
  • Publication number: 20130108160
    Abstract: A character recognition device includes image input unit that receives an image, character region detection unit that detects a character region in the image, character region separation unit that separates the character region on a character-by-character basis, character recognition unit that performs character-by-character recognition on the characters present in separated regions and outputs one or more character recognition result candidates for each character, first character string transition data creation unit that receives the candidates, calculates weights for transitions to the candidates and creates first character string transition data based on a set of the candidates and the weights, and WFST processing unit that sequentially performs state transitions based on the first character string transition data, accumulates weights in each state transition and calculates a cumulative weight for each state transition, and outputs one or more state transition results based on the cumulative weight.
    Type: Application
    Filed: February 24, 2012
    Publication date: May 2, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Takafumi Yamazoe, Minoru Etoh, Takeshi Yoshimura, Kosuke Tsujino
  • Patent number: 8422809
    Abstract: Image encoding apparatus 10 according to the present invention is an image encoding apparatus 10 for dividing image signals into blocks, performing an orthogonal transform of each block, reading resultant orthogonal transform coefficients to obtain a coefficient string, and performing entropy coding, which has block selector 14 for selecting a size of a block for the orthogonal transform, out of a plurality of blocks of different sizes; coefficient string divider 12 for, when a block of a size larger than a minimum size is selected by block selector 14, dividing a coefficient string in the block into a plurality of coefficient strings of a length equal to that of a coefficient string in a block of the minimum size; and encoder 13 for performing entropy coding adapted to the coefficient string in the block of the minimum size. This substantializes the image encoding apparatus capable of achieving efficient entropy coding in the orthogonal transform of variable sizes.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: April 16, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Satoru Adachi, Minoru Etoh, Sadaatsu Kato, Thiow Keng Tan
  • Patent number: 8422808
    Abstract: Image encoding apparatus 10 according to the present invention is an image encoding apparatus 10 for dividing image signals into blocks, performing an orthogonal transform of each block, reading resultant orthogonal transform coefficients to obtain a coefficient string, and performing entropy coding, which has block selector 14 for selecting a size of a block for the orthogonal transform, out of a plurality of blocks of different sizes; coefficient string divider 12 for, when a block of a size larger than a minimum size is selected by block selector 14, dividing a coefficient string in the block into a plurality of coefficient strings of a length equal to that of a coefficient string in a block of the minimum size; and encoder 13 for performing entropy coding adapted to the coefficient string in the block of the minimum size. This substantializes the image encoding apparatus capable of achieving efficient entropy coding in the orthogonal transform of variable sizes.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: April 16, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Satoru Adachi, Minoru Etoh, Sadaatsu Kato, Thiow Keng Tan
  • Patent number: 8396115
    Abstract: A video processing system is provided with video encoding apparatus 1 and video decoding apparatus 2. The encoding apparatus 1 outputs a maximum delay time that is incurred by backward prediction, in addition to encoded data D1 resulting from encoding of video data D0. The decoding apparatus 2 effects input of the maximum delay time that is incurred by backward prediction, in addition to encoded data D1 from the encoding apparatus 1. Then the decoding apparatus 2 decodes the encoded data D1 with reference to the input maximum delay time to generate motion video data D2.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: March 12, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Satoru Adachi, Choong Seng Boon, Sadaatsu Kato, Minoru Etoh, Thiow Keng Tan
  • Patent number: 8391364
    Abstract: An object of the present invention is to express a predicted picture signal with light overheads, and to provide motion compensation of different pixel accuracy.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: March 5, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Minoru Etoh, Satoru Adachi, Mitsuru Kobayashi, Sadaatsu Kato
  • Publication number: 20120328019
    Abstract: An object of the present invention is to express a predicted picture signal with light overheads, and to provide motion compensation of different pixel accuracy.
    Type: Application
    Filed: February 24, 2012
    Publication date: December 27, 2012
    Applicant: NTT DOCOMO, INC.
    Inventors: Minoru ETOH, Satoru Adachi, Mitsuru Kobayashi, Sadaatsu Kato
  • Patent number: 8326057
    Abstract: An image decoding method, apparatus and program for decoding coded picture data is disclosed. In the method, apparatus and program, the coded picture data is entropy-decoded to derive four transform coefficient strings each comprising entropy-decoded sixteen (16) transform coefficients. The four transform coefficient strings are combined into an 8×8 block of entropy-decoded sixty four (64) transform coefficients by de-interleaving the four strings in such a manner as to select a lower frequency transform coefficient alternately from the four strings and arrange it in the 8×8 block in an order of a low frequency to a high frequency. An inverse orthogonal transform is then performed on the 8×8 block of the entropy-decoded sixty four (64) transform coefficients.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: December 4, 2012
    Assignee: NTT DoCoMo, Inc.
    Inventors: Satoru Adachi, Minoru Etoh, Sadaatsu Kato, Thiow Keng Tan
  • Patent number: 8275036
    Abstract: An object of the present invention is to express a predicted picture signal with light overheads, and to provide motion compensation of different pixel accuracy.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: September 25, 2012
    Assignee: NTT DoCoMo, Inc.
    Inventors: Minoru Etoh, Satoru Adachi, Mitsuru Kobayashi, Sadaatsu Kato
  • Patent number: 8265405
    Abstract: A variable-length encoder that feeds a Coded Block Pattern (CBP) as an input symbol to variable-length code output part. Coded symbol memory supplies CBPs in neighboring blocks as coding map table reference information to coding map table provider. Coding map table provider determines a coding map table used in coding of the CBP, based on these CBPs in the neighboring blocks, and provides a coding map table H4 to variable-length code output part. Variable-length coding table provider feeds a variable-length coding table to variable-length code output part. Then the coding target CBP is subjected to variable-length coding, and the resultant is outputted as coded data. This allows information source coding of coding symbols to be performed efficiently according to the coding condition and the property of image.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: September 11, 2012
    Assignee: NTT DoCoMo, Inc.
    Inventors: Kazuo Sugimoto, Satoru Adachi, Sadaatsu Kato, Minoru Etoh, Mitsuru Kobayashi, Hiroyuki Yamaguchi
  • Patent number: 8243803
    Abstract: A moving picture encoding device includes a motion vector detection section configured to detect a motion vector of a predetermined area to be encoded in a frame picture, a prediction section configured to predict the motion vector of the predetermined area to be encoded by using an encoded motion vector of a predetermined area in the frame picture, a determination section configured to determine whether or not the motion vector detected by the motion vector detection section is a predetermined motion vector set in accordance with the motion vector predicted by the prediction section, and a switching section configured to switch a method of calculating a motion compensation value of the predetermined area to be encoded depending on whether or not the motion vector detected by the motion vector detection section is the predetermined motion vector.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: August 14, 2012
    Assignee: NTT DoCoMo, Inc.
    Inventors: Minoru Etoh, Satoru Adachi, Mitsuru Kobayashi, Sadaatsu Kato
  • Patent number: 8179818
    Abstract: In a proxy terminal or server a path setting can be performed by a server apparatus and a path setting that includes, as a relay point, a proxy terminal arbitrarily specified by a user or the proxy terminal located in a local network to which the user belongs, without adding any function to a user terminal. The proxy terminal includes a terminal group information generator unit configured to generate terminal group information that includes a user terminal identifier and a proxy terminal network identifier as a pair, and to transmit, to a server apparatus, the generated terminal group information.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: May 15, 2012
    Assignee: NTT DoCoMo, Inc.
    Inventors: Takashi Yoshikawa, Motoharu Miyake, Hiroshi Inamura, Toshirou Kawahara, Minoru Etoh