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公开(公告)号：US11743497B2
公开(公告)日：2023-08-29
申请号：US17342944
申请日：2021-06-09
Inventor： Noritaka Iguchi , Toshiyasu Sugio
IPC: H04N19/597 , H04N19/124 , H04N19/146 , H04N19/184
CPC classification number: H04N19/597 , H04N19/124 , H04N19/146 , H04N19/184
Abstract: A three-dimensional data encoding method includes: encoding pieces of attribute information of respective three-dimensional points, using parameters; and generating a bitstream including the pieces of attribute information encoded, control information, and pieces of first attribute control information. The control information corresponds to the pieces of attribute information and includes pieces of type information each indicating a type of different attribute information, the pieces of first attribute control information correspond one-to-one with the pieces of attribute information, and each of the pieces of first attribute control information includes first identification information indicating that the first attribute control information is associated with one of the pieces of type information.
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公开(公告)号：US11606551B2
公开(公告)日：2023-03-14
申请号：US17119451
申请日：2020-12-11
Inventor： Toshiyasu Sugio , Chi Wang , Pongsak Lasang , Chung Dean Han , Noritaka Iguchi
IPC: H04N19/103 , H04N19/184 , H04N19/44 , H04N19/597
Abstract: A three-dimensional data encoding method includes: encoding a first flag indicating whether a node having a parent node different from a parent node of a current node is to be referred to in encoding of the current node included in an n-ary tree structure of three-dimensional points included in three-dimensional data; selecting a coding table from N coding tables according to occupancy states of neighboring nodes of the current node, and performing arithmetic encoding on information of the current node using the coding table selected, when the first flag indicates that the node is to be referred to; and selecting a coding table from M coding tables according to the occupancy states of the neighboring nodes of the current node, and performing arithmetic encoding on information of the current node using the coding table selected, when the first flag indicates that the node is not to be referred to.
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公开(公告)号：US11477482B2
公开(公告)日：2022-10-18
申请号：US17132619
申请日：2020-12-23
Inventor： Noritaka Iguchi , Toshiyasu Sugio
IPC: H04N19/597 , H04N19/46
Abstract: A three-dimensional data storage method includes: acquiring one or more units in which an encoded stream generated by encoding point cloud data is stored; and storing the one or more units into a file. The storing includes storing, in control information for the file, information indicating that data stored in the file is data generated by encoding the point cloud data.
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公开(公告)号：US11284136B2
公开(公告)日：2022-03-22
申请号：US17034248
申请日：2020-09-28
Inventor： Noritaka Iguchi , Tadamasa Toma , Hisaya Katou
IPC: H04N21/236 , H04N21/434 , H04N19/169 , H04N21/854 , G10L19/16 , H04N19/436 , H04N19/70 , H04N5/38 , H04N5/44
Abstract: A transmitting method according to one aspect of the present disclosure includes: encoding a video signal and generating encoded data including a plurality of access units; storing the plurality of access units in a packet in a unit that defines one access unit as one unit or in a unit defined by dividing one access unit, and generating a packet group; transmitting the generated packet group as data; generating first information and second information, the first information indicating a presentation time of a first access unit that is presented first among the plurality of access units, and the second information being used to calculate a decoding time of the plurality of access units; and transmitting the first information and the second information as control information.
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公开(公告)号：US11082750B2
公开(公告)日：2021-08-03
申请号：US16047642
申请日：2018-07-27
Inventor： Noritaka Iguchi , Tadamasa Toma , Hisaya Katou
IPC: H04N21/643 , H04N21/8547 , H04N21/236 , H04N21/434 , H04N21/61
Abstract: A transmission method includes: generating one or more frames for content transfer, each of the frames containing one or more second transfer units, each of the second transfer units being placed at a head within each of the frames and containing one or more first transfer units, each of the first transfer units containing one or more Internet Protocol (IP) packets, each of the first transfer units positioned at a head within each of the frames containing reference clock information indicating time used for reproduction of the content that uses the IP packets in a reception apparatus; and transmitting the one or more frames by broadcast.
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Patent Agency Ranking
公开(公告)号：US11019320B2
公开(公告)日：2021-05-25
申请号：US14965900
申请日：2015-12-11
Inventor： Noritaka Iguchi , Tadamasa Toma , Takahiro Nishi , Hisaya Katou
IPC: H04N9/804 , G11B27/10 , G11B27/32 , H04N21/433 , H04N21/845 , H04N5/76
Abstract: A storage method according to one aspect includes: a reception step of receiving a coded stream including a plurality of files that are of a data unit in a predetermined file format; a storage step of storing the received plurality of files of the coded stream in a memory; and a generation step of generating first control information used to play back the stored plurality of files, the first control information correlating the plurality of files. Therefore, the method for storing data in which one coded stream is divided into a plurality of files is provided.
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公开(公告)号：US10945021B2
公开(公告)日：2021-03-09
申请号：US16706910
申请日：2019-12-09
Inventor： Noritaka Iguchi , Tadamasa Toma
IPC: H04N21/43 , H04N21/2389 , H04N21/8547 , H04N21/2365 , H04N21/845 , H04N21/434 , H04N21/2343 , H04N21/2381 , H04N21/242 , H04N21/633 , H04N21/6332 , H04N21/83
Abstract: A receiving method of receiving a first data unit in which data making up an encoded stream is stored and the first data unit stores a plurality of second data units. The receiving method includes: receiving the first data unit, first time information indicating a presentation time of the first data unit, second time information indicating, together with the first time information, a presentation time or a decoding time of each of the plurality of second data units, and identification information; calculating the presentation time or the decoding time of each of the plurality of second data units using the first time information and the second time information; and correcting the presentation time or the decoding time of each of the plurality of second data units based on the identification information.
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公开(公告)号：US10778358B2
公开(公告)日：2020-09-15
申请号：US16400232
申请日：2019-05-01
Inventor： Noritaka Iguchi , Tadamasa Toma , Hisaya Katou
IPC: H04J3/06 , H04N21/2381 , H04N21/242 , H04N21/434 , H04N21/643 , H04N21/854 , H04L12/741 , H04L29/06
Abstract: A transmission method includes generating one or more frames for content transfer using IP packets, and transmitting the one or more generated frames by broadcast. Each of the one or more frames contains a plurality of second transfer units, each of the plurality of second transfer units contains one or more first transfer units, each of the one or more first transfer units contains at least one of the IP packets, an object IP packet of the IP packets contains first reference clock information indicating time for reproduction of the content in data structure different from MMT packet data structure, the object IP packet being stored in a first transfer unit positioned at a head in the one or more frames, the one or more frames contains control information storing second reference clock information indicating time for reproduction of the content, and header compression processing on the object IP packet is omitted.
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公开(公告)号：US10356474B2
公开(公告)日：2019-07-16
申请号：US14970750
申请日：2015-12-16
Inventor： Tadamasa Toma , Noritaka Iguchi , Takahiro Nishi , Hisaya Katou
IPC: H04N21/43 , H04N21/462 , H04H60/13 , H04N21/44 , H04N21/488 , H04N21/8543 , H04H20/18
Abstract: According to one aspect of the present disclosure, a transmission method for enabling transmission of content using a broadcast wave and a communication channel includes: transmitting auxiliary information using at least the broadcast wave, the auxiliary information being information for synchronizing content transmission using the broadcast wave and content transmission using the communication channel when the content is transmitted using the broadcast wave and the communication channel, and the auxiliary information causing a reception side to perform the synchronization when the reception side receives the auxiliary information. Therefore, even if timing of starting reception of the content through the communication is delayed, the reception side can play back the content by a combination of the broadcasting and the communication.
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公开(公告)号：US09992550B2
公开(公告)日：2018-06-05
申请号：US15139209
申请日：2016-04-26
Inventor： Noritaka Iguchi , Tadamasa Toma , Hisaya Katou
IPC: H04N5/76 , H04N21/643 , H04N21/43 , H04L7/00 , H04N21/236 , H04N21/2381 , H04N21/242 , H04N21/262 , H04N21/438 , H04N21/61
CPC classification number: H04N21/64322 , H04L7/0012 , H04N21/23614 , H04N21/2381 , H04N21/242 , H04N21/26283 , H04N21/4305 , H04N21/4381 , H04N21/6125
Abstract: A transmission method includes generating one or more frames for content transfer using IP (Internet Protocol) packets, and transmitting the one or more generated frames by broadcast. Each of the one or more frames contains a plurality of second transfer units, each of the plurality of second transfer units contains one or more first transfer units, and each of the one or more first transfer units contains at least one of the IP packets. An object IP packet of the IP packets which is stored in a first transfer unit positioned at a head in the one or more frames contains reference clock information that indicates time for reproduction of the content in data structure different from data structure of an MMT (MPEG Media Transport) packet, and header compression processing on the object IP packet is omitted.
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