Patents by Inventor Tomoyuki Yamamoto

Tomoyuki Yamamoto 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: 20150245046
    Abstract: An image decoding device is equipped with a header information decoding means for decoding profile/level information included in a video parameter set after decoding byte-aligned 16-bit extension information (next_essential_info_byte_offset) in the video parameter set.
    Type: Application
    Filed: September 12, 2013
    Publication date: August 27, 2015
    Inventors: Takeshi Tsukuba, Tomoyuki Yamamoto, Tomohiro Ikai, Yukinobu Yasugi, Sachin G. Deshpande
  • Publication number: 20150222914
    Abstract: A reference picture information decoding unit (13) omits decoding of a reference list sorting presence or absence flag and/or a reference list sorting order based on the number of current picture referable pictures.
    Type: Application
    Filed: September 26, 2013
    Publication date: August 6, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai, Yukinobu Yasugi, Takeshi Tsukuba
  • Publication number: 20150181237
    Abstract: A coefficient presence/absence flag decoding unit (124), included in a quantized residual information decoding unit (111) which reduces a processing amount related to coding and decoding of a transform coefficient, splits a target frequency domain or a target pixel domain into sub-blocks, and derives different context indexes with respect to each transform coefficient in a pixel domain, obtained through a transform skip or a transform/quantization bypass, and each transform coefficient which is obtained for each frequency component through frequency transform.
    Type: Application
    Filed: June 4, 2013
    Publication date: June 25, 2015
    Inventors: Takeshi Tsukuba, Tomohiro Ikai, Tomoyuki Yamamoto
  • Patent number: 8995776
    Abstract: An adaptive filter includes: an edge direction detection section which discriminates directionality of an input image in each of a plurality of unit regions constituting the input image; a region classification section which classifies the each of the plurality of unit regions into one of a plurality of unit region groups in accordance with to which of a plurality of predetermined groups the directionality of the input image in the each of the plurality of unit regions belongs, the directionality having been discriminated by the edge direction detection section; and a filter process section which calculates a pixel value of the each pixel of an output image by use of a filter coefficient group optimized for a unit region group to which a unit region including the each pixel belongs.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: March 31, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomohiro Ikai, Tomoyuki Yamamoto, Takanori Yamazaki
  • Publication number: 20150003524
    Abstract: Memory required during decoding is reduced. A video image decoding device (1) is equipped with main direction deriving means (1453A) that references a prediction mode definition DEFPM(1), and from a prediction mode number, derives a main direction of a prediction direction corresponding to a prediction mode, and a gradient deriver (1453B) that references a gradient definition table DEFANG(1), and derives a gradient of the prediction direction.
    Type: Application
    Filed: January 11, 2013
    Publication date: January 1, 2015
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai, Yukinobu Yasugi, Takeshi Tsukuba
  • Publication number: 20140348235
    Abstract: While maintaining a high degree of freedom in choosing partition sizes and transformation sizes adapted for local characteristics of videos, the amount of metadata is decreased. A video encoding apparatus (10) divides an input video into blocks of a prescribed size and encodes the video block by block. The video encoding apparatus is provided with: a prediction parameter determining portion (102) that decides the block partition structure; a predictive image producing portion (103) that generates predictive images, partition by partition, as prescribed by the partition structure; a transform coefficient producing portion (107) which applies one of the frequency transformations included in a prescribed transformation preset to prediction residuals, i.e. the differences between predictive images and the input video; a transform restriction deriving portion (104) which generates the list of transform candidate, i.e.
    Type: Application
    Filed: August 8, 2014
    Publication date: November 27, 2014
    Inventors: Tomoyuki YAMAMOTO, Tomohiro IKAI
  • Publication number: 20140348247
    Abstract: To reduce the amount of processing related to coding and decoding of transform coefficients, a sub-block coefficient presence/absence flag indicating whether or not at least one non-zero transform coefficient is included is decoded for each of two or more sub-blocks obtained by dividing a unit region, and a context index of a target sub-block is derived on the basis of transform coefficient presence/absence flags each indicating whether or not a transform coefficient is 0. In accordance with the sub-block coefficient presence/absence flags of adjacent sub-blocks that are adjacent to the target sub-block, the context index of the target sub-block is derived.
    Type: Application
    Filed: December 26, 2012
    Publication date: November 27, 2014
    Inventors: Takeshi Tsukuba, Tomohiro Ikai, Tomoyuki Yamamoto, Yukinobu Yasugi
  • Publication number: 20140307801
    Abstract: The amount of processing is reduced with high coding efficiency maintained. There is provided an arithmetic decoding device including syntax decoding means for decoding each of at least a first syntax element and a second syntax element indicating a transform coefficient using arithmetic decoding with a context or arithmetic decoding without a context. The syntax decoding means performs decoding that at least includes not decoding the first syntax element and decoding the second syntax element using the arithmetic decoding without a context, and decoding the first syntax element using the arithmetic decoding with a context and decoding the second syntax element using the arithmetic decoding without a context.
    Type: Application
    Filed: October 31, 2012
    Publication date: October 16, 2014
    Inventors: Tomohiro Ikai, Yukinobu Yasugi, Tomoyuki Yamamoto, Takeshi Tsukuba
  • Patent number: 8855203
    Abstract: While maintaining a high degree of freedom in choosing partition sizes and transformation sizes adapted for local characteristics of videos, the amount of metadata is decreased. A video encoding apparatus (10) divides an input video into blocks of a prescribed size and encodes the video block by block. The video encoding apparatus is provided with: a prediction parameter determining portion (102) that decides the block partition structure; a predictive image producing portion (103) that generates predictive images, partition by partition, as prescribed by the partition structure; a transform coefficient producing portion (107) which applies one of the frequency transformations included in a prescribed transformation preset to prediction residuals, i.e. the differences between predictive images and the input video; a transform restriction deriving portion (104) which generates the list of transform candidate, i.e.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: October 7, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai
  • Patent number: 8824860
    Abstract: A program delivery control system includes: a storage section that stores a playlist indicating a play order of items forming a program; an apparatus control section that controls an apparatus on the basis of the playlist stored in the storage section and that causes the storage section to store error information sent from the apparatus in correlation with the apparatus that issued the error information; and a playlist display control section that performs control so as to display the playlist stored in the storage section on a screen with an item being played indicated as such and, in a case where the error information is stored, with an item for which the apparatus that issued the error information is necessary provided with an error indication.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: September 2, 2014
    Assignee: Sony Corporation
    Inventors: Takafumi Ito, Naomi Egashira, Tomoyuki Yamamoto, Kazunori Kinoshita
  • Publication number: 20140226719
    Abstract: To achieve a reduction in the amount of coding taken in the use of an asymmetric partition and to implement efficient encoding/decoding processes exploiting the characteristics of the asymmetric partition. In a case that a CU information decoding unit decodes information for specifying an asymmetric partition (AMP; Asymmetric Motion Partition) as a partition type, an arithmetic decoding unit is configured to decode binary values by switching between arithmetic decoding that uses contexts and arithmetic decoding that does not use contexts in accordance with the position of the binary values.
    Type: Application
    Filed: September 28, 2012
    Publication date: August 14, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai, Yukinobu Yasugi
  • Publication number: 20140201782
    Abstract: Log information includes items of information that identify one or more of program titles and performers that are selected by a user as being preferred. Identifiers are displayed, where each of the identifiers identifies an item of information included in the log information. An input to select one of the identifiers is received, and broadcast information for the program title or performer corresponding to the selected identifier is acquired. The broadcast information includes one or more broadcast times of contents that have the program title or that include the performer. The broadcast information is displayed to include the one or more broadcast times and an input is received to select a broadcast time of a content. Detailed information for the content and the broadcast time are displayed when the input to select the broadcast time of the content is received.
    Type: Application
    Filed: February 25, 2014
    Publication date: July 17, 2014
    Applicant: Sony Corporation
    Inventors: Junya OHDE, Kazuhito Sumiyoshi, Hideki Asazu, Tomoyuki Yamamoto
  • Publication number: 20140140416
    Abstract: An adaptive offset filter (60) adds an offset to the pixel value of each pixel forming an input image. The adaptive offset filter (60) refers to offset-type specifying information, sets offset attributes for a subject unit area of the input image, decodes an offset having a bit width corresponding to an offset value range included in the set offset attributes, and adds the offset to the pixel value of each pixel forming the input image.
    Type: Application
    Filed: June 22, 2012
    Publication date: May 22, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Takanori Yamazaki, Tomohiro Ikai, Tomoyuki Yamamoto, Yukinobu Yasugi
  • Patent number: 8707377
    Abstract: Disclosed herein is a program sending controlling apparatus, including: a retaining section adapted to retain a playlist in which cues which are progressing units of a program are disposed in a time series; an apparatus controlling section adapted to control on-air of a broadcasting-related apparatus based on the playlist; an editing section adapted to edit the playlist; a detection section adapted to detect, in response to editing carried out for the playlist corresponding to the program, presence or absence of a syntax error in the playlist; and a display controlling section adapted to cause the playlist corresponding to the program to be displayed and cause, when the syntax error is detected, an error indication to be displayed at a position of that one of the cues of the displayed playlist which corresponds to the detected syntax error.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: April 22, 2014
    Assignee: Sony Corporation
    Inventors: Takafumi Ito, Naomi Egashira, Tomoyuki Yamamoto, Kazunori Kinoshita
  • Publication number: 20130343455
    Abstract: A video image decoding device (1) is equipped with a TT information decoder (14) that, in the case where encoded data includes merge/skip information that merges or skips presence information indicating whether or not frequency-domain transform coefficients are included in the quantized transform coefficients, does not decode the presence information, and a TT information inference unit (33) that, in the case where the encoded data includes merge/skip information that merges or skips the presence information, infers the presence information. The TT information decoder (14) uses presence information inferred by the TT information inference unit (33) to decode the encoded and quantized transform coefficients.
    Type: Application
    Filed: March 7, 2012
    Publication date: December 26, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Tomoyuki Yamamoto
  • Patent number: 8464291
    Abstract: A content searching/providing system searching a record content from a randomly accessible memory storing contents and providing the record content to a user is provided. The system comprises: a content classification unit classifying the record contents of the memory in accordance with a predetermined rule; a channel assignment unit assigning a virtual channel to each classification; a content arrangement unit arranging the record contents classified into the same classification on the corresponding virtual channels; a user operation receiving unit receiving a user operation for commanding channel selection and content search on a channel; and a content providing unit acquiring a record content from a selected virtual channel in response to the user operation received via the user operation receiving unit and providing the record content.
    Type: Grant
    Filed: August 7, 2006
    Date of Patent: June 11, 2013
    Assignee: Sony Corporation
    Inventor: Tomoyuki Yamamoto
  • Publication number: 20130136371
    Abstract: An adaptive filter includes: an edge direction detection section which discriminates directionality of an input image in each of a plurality of unit regions constituting the input image; a region classification section which classifies the each of the plurality of unit regions into one of a plurality of unit region groups in accordance with to which of a plurality of predetermined groups the directionality of the input image in the each of the plurality of unit regions belongs, the directionality having been discriminated by the edge direction detection section; and a filter process section which calculates a pixel value of the each pixel of an output image by use of a filter coefficient group optimized for a unit region group to which a unit region including the each pixel belongs.
    Type: Application
    Filed: June 2, 2011
    Publication date: May 30, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tomohiro Ikai, Tomoyuki Yamamoto, Takanori Yamazaki
  • Publication number: 20130114712
    Abstract: A moving image decoder (1) includes an intermediate estimated prediction mode deriving section (124) for transforming a prediction mode of each neighbor partition into an intermediate prediction mode included in an intermediate prediction set which is a sum of prediction sets (PS); and an estimated prediction mode deriving section (125) for deriving an estimated prediction mode by estimating a prediction mode of a target partition based on the intermediate prediction mode of each neighbor partition which is obtained by the transform.
    Type: Application
    Filed: July 14, 2011
    Publication date: May 9, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai
  • Publication number: 20130058410
    Abstract: A video encoding device includes a side information determination section and a side information encoding section. The side information determination section sets a quantization parameter for each macroblock in such a manner that a difference between quantization parameters for each pair of macroblocks with successive encoding orders is equal to one of n difference values, and transforms the difference into one of n indices with respect to each pair. The side information encoding section generates a binary sequence having a length corresponding to the size of the absolute value of the index. The total of absolute values of the n indices is smaller than the total of absolute values of the n difference values.
    Type: Application
    Filed: April 28, 2011
    Publication date: March 7, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yukinobu Yasugi, Tomohiro Ikai, Tomoyuki Yamamoto
  • Patent number: 8355817
    Abstract: A robot system including a robot arm driven by a servo motor; and a robot controller controlling an operation of the robot arm. The robot system further comprises a first detection section detecting a rotation amount of the servo motor; a second detection section attached to a tip portion of the robot arm, and detecting a velocity or acceleration of the tip portion of the robot arm; a computation section computing the velocity or acceleration of the tip portion of the robot arm based on values detected by the first detection section, and computing a deviation between this computed velocity or acceleration and the velocity or acceleration detected by the second detection section; and an emergency stop section for bringing the servo motor to an emergency stop when a magnitude of the deviation computed by the computation section is greater than a reference value.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: January 15, 2013
    Assignee: FANUC Corporation
    Inventors: Ryo Nihei, Tetsuaki Kato, Takeaki Aramaki, Tomoyuki Yamamoto