Patents by Inventor Tomoo Yamakage
Tomoo Yamakage 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: 20210021851Abstract: A method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.Type: ApplicationFiled: September 30, 2020Publication date: January 21, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Taichiro SHIODERA, Akiyuki TANIZAWA, Tomoo YAMAKAGE, Takeshi CHUJOH
-
Publication number: 20210014518Abstract: A method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.Type: ApplicationFiled: September 30, 2020Publication date: January 14, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Taichiro SHIODERA, Akiyuki Tanizawa, Tomoo Yamakage, Takeshi Chujoh
-
Publication number: 20210014517Abstract: A method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.Type: ApplicationFiled: September 30, 2020Publication date: January 14, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Taichiro SHIODERA, Akiyuki TANIZAWA, Tomoo YAMAKAGE, Takeshi CHUJOH
-
Publication number: 20210014519Abstract: A method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.Type: ApplicationFiled: September 30, 2020Publication date: January 14, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Taichiro SHIODERA, Akiyuki TANIZAWA, Tomoo YAMAKAGE, Takeshi CHUJOH
-
Patent number: 10841606Abstract: A method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.Type: GrantFiled: October 28, 2019Date of Patent: November 17, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Taichiro Shiodera, Akiyuki Tanizawa, Tomoo Yamakage, Takeshi Chujoh
-
Publication number: 20200329270Abstract: According to an embodiment, a packet generation apparatus includes: a converter configured to convert Temps Atomique International (TAI) time into an STC counter value; a sampling unit configured to obtain a PCR value by sampling the STC counter value converted by the converter in accordance with a first timing; a packet generator configured to generate a TS packet in which the PCR value obtained by the sampling unit is described, and to output the TS packet in accordance with a second timing; and a timing controller configured to determine the first timing and the second timing.Type: ApplicationFiled: March 12, 2020Publication date: October 15, 2020Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions CorporationInventor: Tomoo YAMAKAGE
-
Publication number: 20200267400Abstract: According to an embodiment, an image coding method is for coding an image including a luminance component and color difference components. The method includes acquiring a reference image; and generating a predicted image by interpolating the luminance component and the color difference components in the reference image according to a motion vector. If a size of a block, which is designated as a unit of the interpolation, is equal to or smaller than a predetermined first threshold value, the generating includes inhibiting a bi-directional prediction, and performing only a uni-directional prediction to generate the predicted image according to the motion vector.Type: ApplicationFiled: May 4, 2020Publication date: August 20, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takeshi CHUJOH, Tomoo Yamakage
-
Publication number: 20200267401Abstract: According to an embodiment, an image coding method is for coding an image including a luminance component and color difference components. The method includes acquiring a reference image; and generating a predicted image by interpolating the luminance component and the color difference components in the reference image according to a motion vector. If a size of a block, which is designated as a unit of the interpolation, is equal to or smaller than a predetermined first threshold value, the generating includes inhibiting a bi-directional prediction, and performing only a uni-directional prediction to generate the predicted image according to the motion vector.Type: ApplicationFiled: May 4, 2020Publication date: August 20, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takeshi CHUJOH, Tomoo YAMAKAGE
-
Patent number: 10721008Abstract: A transmitting system includes an outputting apparatus and a multiplexing apparatus. The outputting apparatus transmits MMTP packets to which an NTP short format timestamp is added. The multiplexing apparatus multiplexes the MMTP packets. The multiplexing apparatus includes an extractor, a controller, a determiner, a management information generator, a continuity determiner, and a transmission timing adjuster. The transmission timing adjuster writes, for adjustment of a transmission timing of an MMTP packet being close to an MMTP packet in which an NTP short format timestamp value is discontinuous, time information taking a leap second processing into consideration, to the NTP short format timestamp of the MMTP packet.Type: GrantFiled: September 11, 2017Date of Patent: July 21, 2020Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions CorporationInventors: Tomoo Yamakage, Tatsuya Tanaka, Yasumichi Hashi, Keita Iwami
-
Publication number: 20200213381Abstract: A multiplexing method including: receiving a TS over IP packet from a plurality of encoders which are disposed at physically remote places, or which are disposed in a virtual environment on a cloud computing system where physical locations are unidentifiable; performing multiplexing after compensating for a delay and jitter of a transmission path, based on a timestamp which is stamped on an RTP header of the TS over IP packet; and performing, with respect to a PCR packet, either multiplexing after compensating for the delay and the jitter, based on a time re-generated in a multiplexing apparatus, or multiplexing by generating a PCR packet in the multiplexing apparatus.Type: ApplicationFiled: December 20, 2019Publication date: July 2, 2020Applicants: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions CorporationInventor: Tomoo Yamakage
-
Patent number: 10687072Abstract: According to an embodiment, an image coding method is for coding an image including a luminance component and color difference components. The method includes acquiring a reference image; and generating a predicted image by interpolating the luminance component and the color difference components in the reference image according to a motion vector. If a size of a block, which is designated as a unit of the interpolation, is equal to or smaller than a predetermined first threshold value, the generating includes inhibiting a bi-directional prediction, and performing only a uni-directional prediction to generate the predicted image according to the motion vector.Type: GrantFiled: October 21, 2019Date of Patent: June 16, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Takeshi Chujoh, Tomoo Yamakage
-
Publication number: 20200145184Abstract: A transmitting system includes a variable-length packet multiplexing apparatus and a transmission slotting apparatus. The variable-length packet multiplexing apparatus generates a variable-length packet. The transmission slotting apparatus stores the variable-length packet in slots forming transmission main signals. The transmission slotting apparatus includes a capacity calculator, an extractor, a remainder calculator, a selector, and a slot information multiplexer. The capacity calculator calculates a data capacity of the transmission main signals for one frame. The extractor extracts a byte number of the variable-length packet. The remainder calculator calculates a remaining capacity of the transmission main signals. The selector stores a predetermined data sequence in a region left in the slots, and outputs the slots storing the data sequence. The slot information multiplexer multiplexes slot information and the slots output by the selector.Type: ApplicationFiled: January 6, 2020Publication date: May 7, 2020Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATIONInventors: Tomoo YAMAKAGE, Tatsuya TANAKA, Yasumichi HASHI, Keita IWAMI, Minoru ABE
-
Patent number: 10574436Abstract: A transmitting system includes a variable-length packet multiplexing apparatus and a transmission slotting apparatus. The variable-length packet multiplexing apparatus generates a variable-length packet. The transmission slotting apparatus stores the variable-length packet in slots forming transmission main signals. The transmission slotting apparatus includes a capacity calculator, an extractor, a remainder calculator, a selector, and a slot information multiplexer. The capacity calculator calculates a data capacity of the transmission main signals for one frame. The extractor extracts a byte number of the variable-length packet. The remainder calculator calculates a remaining capacity of the transmission main signals. The selector stores a predetermined data sequence in a region left in the slots, and outputs the slots storing the data sequence. The slot information multiplexer multiplexes slot information and the slots output by the selector.Type: GrantFiled: September 15, 2017Date of Patent: February 25, 2020Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions CorporationInventors: Tomoo Yamakage, Tatsuya Tanaka, Yasumichi Hashi, Keita Iwami, Minoru Abe
-
Publication number: 20200059656Abstract: A method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.Type: ApplicationFiled: October 28, 2019Publication date: February 20, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Taichiro SHIODERA, Akiyuki TANIZAWA, Tomoo YAMAKAGE, Takeshi CHUJOH
-
Publication number: 20200053374Abstract: According to an embodiment, an image coding method is for coding an image including a luminance component and color difference components. The method includes acquiring a reference image; and generating a predicted image by interpolating the luminance component and the color difference components in the reference image according to a motion vector. If a size of a block, which is designated as a unit of the interpolation, is equal to or smaller than a predetermined first threshold value, the generating includes inhibiting a bi-directional prediction, and performing only a uni-directional prediction to generate the predicted image according to the motion vector.Type: ApplicationFiled: October 21, 2019Publication date: February 13, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takeshi CHUJOH, Tomoo YAMAKAGE
-
Patent number: 10554381Abstract: An MMT transmission system includes first and second material output devices, first and second multiplexing devices, first and second encryption processing device, and a switching device. The first encryption processing device encrypts a first payload, except for a first MPU sequence number, of a first MMTP packet included in first multiplexed data output from the first multiplexing device. The second encryption processing device encrypts a second payload, except for a second MPU sequence number, of a second MMTP packet included in second multiplexed data output from the second multiplexing device. The switching device acquires a first MPU boarder from the first MPU sequence number, a second MPU boarder from the second MPU sequence number, and switches transmissions of the multiplexed data at these boarders.Type: GrantFiled: September 2, 2016Date of Patent: February 4, 2020Assignee: Kabushiki Kaisha ToshibaInventor: Tomoo Yamakage
-
Patent number: 10554991Abstract: According to an embodiment, an image coding method is for coding an image including a luminance component and color difference components. The method includes acquiring a reference image; and generating a predicted image by interpolating the luminance component and the color difference components in the reference image according to a motion vector. If a size of a block, which is designated as a unit of the interpolation, is equal to or smaller than a predetermined first threshold value, the generating includes inhibiting a bi-directional prediction, and performing only a uni-directional prediction to generate the predicted image according to the motion vector.Type: GrantFiled: August 28, 2017Date of Patent: February 4, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Takeshi Chujoh, Tomoo Yamakage
-
Patent number: 10511851Abstract: A method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.Type: GrantFiled: January 8, 2018Date of Patent: December 17, 2019Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Taichiro Shiodera, Akiyuki Tanizawa, Tomoo Yamakage, Takeshi Chujoh
-
Publication number: 20190319776Abstract: According to one embodiment, there is provided a synchronization control apparatus which synchronizes an STC counter value, based on TAI (Temps Atomique International: international atomic time) time, in each of systems which constitute a transmission system in a broadcasting system or a distribution system, the apparatus includes a processor or a dedicated arithmetic circuit configured to determine a time length in which the STC counter value laps, to calculate a remainder of the time length relative to the TAI time, and to convert the remainder to the STC counter value, thereby determining the STC counter value.Type: ApplicationFiled: April 12, 2019Publication date: October 17, 2019Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions CorporationInventor: Tomoo YAMAKAGE
-
Patent number: 10334293Abstract: A multiplexing apparatus includes processing circuitry. The processing circuitry multiplexes a plurality of MMT packets including at least one MMT packet to which first output time information representing a first output time and presentation time information representing a presentation time are added. The processing circuitry rewrites the first output time information to second output time information representing a second output time. The processing circuitry adds a time necessary to multiplex the plurality of MMT packets to the presentation time represented by the presentation time information as a delay time.Type: GrantFiled: June 11, 2018Date of Patent: June 25, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Tatsuya Tanaka, Tomoo Yamakage