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公开(公告)号：US11582483B2
公开(公告)日：2023-02-14
申请号：US17350486
申请日：2021-06-17
Inventor： Noritaka Iguchi , Toshiyasu Sugio
IPC: H04N19/119 , H04N19/597 , H04N19/46
Abstract: A three-dimensional data encoding method includes: shifting point cloud data indicating three-dimensional positions in a three-dimensional space by a first shift amount; dividing the point cloud data into pieces of sub point cloud data; shifting each of the pieces of sub point cloud data by a second shift amount based on a position of one of the subspaces that includes the sub point cloud data, the pieces of sub point cloud data being included in the point cloud data shifted by the first shift amount; and encoding the pieces of sub point cloud data shifted, to generate a bitstream. The bitstream includes first shift information for calculating the first shift amount, and pieces of second shift information each for calculating a corresponding one of second shift amounts by which the pieces of sub point cloud data are shifted and each of which is the second shift amount.
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公开(公告)号：US11461934B2
公开(公告)日：2022-10-04
申请号：US17154570
申请日：2021-01-21
Inventor： Toshiyasu Sugio , Noritaka Iguchi
Abstract: A three-dimensional data encoding method includes: obtaining third point cloud data that is a combination of first point cloud data and second point cloud data, and includes geometry information of each of three-dimensional points included in the third point cloud data, and identification information indicating which of the first point cloud data and the second point cloud data each of the three-dimensional points belongs to; and generating encoded data by encoding the third point cloud data obtained. In the generating, identification information of each of the three-dimensional points is encoded as attribute information.
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公开(公告)号：US11284142B2
公开(公告)日：2022-03-22
申请号：US17134877
申请日：2020-12-28
Inventor： Noritaka Iguchi , Tadamasa Toma , Takahiro Nishi , Hisaya Katou
IPC: H04N21/242 , H04N21/44 , H04H60/13 , H04N21/43 , H04N21/462 , H04N21/61 , H04N21/8547 , H04H20/18
Abstract: According to one aspect of the present disclosure, a reception method in broadcast and broadband cooperation service, the reception method includes: receiving broadcast content transmitted through broadcast; receiving acquisition information through the broadcast, the acquisition information being information used to play back broadband content transmitted through broadband while the broadband content is synchronized with the received broadcast content, the acquisition information being information relating to acquisition of the broadband content; and acquiring the broadband content based on the received acquisition information. Therefore, the broadband content can properly be acquired in response to the reception of the broadcast content.
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公开(公告)号：US20210120291A1
公开(公告)日：2021-04-22
申请号：US17134877
申请日：2020-12-28
Inventor： Noritaka Iguchi , Tadamasa Toma , Takahiro Nishi , Hisaya Katou
IPC: H04N21/242 , H04N21/44 , H04H60/13 , H04N21/43 , H04N21/462 , H04N21/61 , H04N21/8547
Abstract: According to one aspect of the present disclosure, a reception method in broadcast and broadband cooperation service, the reception method includes: receiving broadcast content transmitted through broadcast; receiving acquisition information through the broadcast, the acquisition information being information used to play back broadband content transmitted through broadband while the broadband content is synchronized with the received broadcast content, the acquisition information being information relating to acquisition of the broadband content; and acquiring the broadband content based on the received acquisition information. Therefore, the broadband content can properly be acquired in response to the reception of the broadcast content.
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公开(公告)号：US10440442B2
公开(公告)日：2019-10-08
申请号：US15966485
申请日：2018-04-30
Inventor： Noritaka Iguchi , Tadamasa Toma , Hisaya Katou
IPC: H04N21/643 , H04N21/236 , H04N21/2381 , H04N21/242 , H04N21/262 , H04N21/43 , H04N21/438 , H04N21/61 , H04L7/00
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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Patent Agency Ranking
公开(公告)号：US10368115B2
公开(公告)日：2019-07-30
申请号：US15007042
申请日：2016-01-26
Inventor： Tadamasa Toma , Noritaka Iguchi , Hisaya Katou
IPC: H04N7/173 , H04N21/262 , H04N21/234 , H04N21/242 , H04N21/8547 , H04N21/858 , H04N21/236 , H04N21/2365 , H04N21/235 , H04N21/84 , H04N21/43
Abstract: A transmitting method according to one aspect of the present disclosure includes transmitting a first stream, the first stream including: timing update identification information id1 indicating whether or not a correspondence relationship between a first reference clock and a second reference clock has been updated, the first reference clock being used to transmit and receive the first stream, and the second reference clock being used to transmit and receive a second stream related to another content to be reproduced in synchronization with the content related to the first stream; a first time according to the first reference clock; and a second time according to the second reference clock, the second time being associated with the first time based on the updated correspondence relationship.
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公开(公告)号：US10321200B2
公开(公告)日：2019-06-11
申请号：US15956301
申请日：2018-04-18
Inventor： Noritaka Iguchi , Tadamasa Toma , Hisaya Katou
IPC: H04N7/20 , H04N21/643 , H04L29/12 , H04L29/06 , H04N21/242 , H04N21/43 , H04N21/61 , H04N21/845 , H04L29/10 , H04N21/8547 , H04J3/06
Abstract: A transmission method includes: generating one or more transfer frames that each store one or more streams used for content transfer; and transmitting the one or more generated frames through broadcast, each of the one or more streams storing one or more second transfer units, each of the one or more second transfer units storing one or more first transfer units, and each of the one or more first transfer units storing one or more Internet Protocol (IP) packets. In at least one stream among the one or more streams, each of the first transfer units positioned at a head contains reference clock information indicating time used for reproduction of the content.
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18.发明授权公开(公告)号：US09984726B2
公开(公告)日：2018-05-29
申请号：US14951759
申请日：2015-11-25
Inventor： Tadamasa Toma , Noritaka Iguchi , Takahiro Nishi , Hisaya Katou
IPC: G11B27/10 , H04N19/44 , H04N19/70 , H04N21/43 , H04N21/242 , H04N21/643 , H04N21/845 , H04N21/8547
CPC classification number: G11B27/10 , H04N21/242 , H04N21/43 , H04N21/4302 , H04N21/643 , H04N21/8456 , H04N21/8547
Abstract: A data transmission method according to one aspect of the present disclosure includes: generating a plurality of MPUs, reference clock time information, and leading clock time information indicating a leading PTS that is a clock time at which a leading access unit in the MPU is presented, transmitting the generated plurality of MPUs, reference clock time information, and leading clock time information, wherein the leading clock time information indicates the leading PTS of the plurality of MPUs of which presentation is started after the leading clock time information is transmitted in the generated plurality of MPUs, and each of the generated plurality of MPUs indicates a time point at which each access unit that does not exist in a head of the MPU is presented as a relative value to a time point of another access unit in the MPU.
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公开(公告)号：US12299944B2
公开(公告)日：2025-05-13
申请号：US18079135
申请日：2022-12-12
Inventor： Toshiyasu Sugio , Noritaka Iguchi , Masato Ohkawa
Abstract: A three-dimensional data encoding method includes: encoding information of a target node included in an N-ary tree structure of three-dimensional points included in three-dimensional data; and generating a bitstream including the information of the target node encoded. In the encoding, the target node is encoded based on reference limitation information indicating a referable neighbor node among neighbor nodes spatially neighboring the target node. In the generating, when the target node is encoded by reference to information of a first neighbor node, the bitstream further including encoding processing information is generated, the encoding processing information indicating a processing method in the encoding; and when the target node is encoded without reference to the information of the first neighbor node, the bitstream is generated without including the encoding processing information in the bitstream.
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公开(公告)号：US12243275B2
公开(公告)日：2025-03-04
申请号：US17709966
申请日：2022-03-31
Inventor： Chung Dean Han , Pongsak Lasang , Pradit Mittrapiyanuruk , Keng Liang Loi , Noritaka Iguchi , Toshiyasu Sugio
IPC: G06T9/00
Abstract: A three-dimensional data encoding method includes: determining a first maximum bit count for encoded data obtained after encoding at least one of (i) a divisional data unit obtained when point cloud data indicating a three-dimensional point cloud is divided or (ii) a point cloud data unit of the point cloud data before the dividing; and generating a bitstream by encoding (i) items of divisional data obtained by dividing the point cloud data or (ii) the point cloud data before the dividing, to satisfy the first maximum bit count determined. The bitstream includes first bit count information indicating the first maximum bit count.
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