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公开(公告)号：US11812047B2
公开(公告)日：2023-11-07
申请号：US17403456
申请日：2021-08-16
Inventor： Takashi Hashimoto , Kiyofumi Abe , Tadamasa Toma , Takahiro Nishi , Ryuichi Kanoh
IPC: H04N19/51 , H04N19/433
CPC classification number: H04N19/51 , H04N19/433
Abstract: An encoding method is provided for encoding a picture to generate a coded stream. The encoding method incldues: generating a first prediction image of a current block included in a current picture by referring to a first region included in a reference picture different from the current picture; operating a bi-directional optical flow process to generate a second prediction image based on the first prediction image by referring to a second region included in the first region, and not operating the bi-directional optical flow process by referring to a third region not included in the first region; and encoding the current block based on the second prediction image.
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公开(公告)号：US11812027B2
公开(公告)日：2023-11-07
申请号：US17473911
申请日：2021-09-13
Inventor： Ru Ling Liao , Chong Soon Lim , Hai Wei Sun , Han Boon Teo , Jing Ya Li , Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma
IPC: H04N19/115 , H04N19/137 , H04N19/159 , H04N19/176 , H04N19/105 , H04N19/132 , H04N19/119
CPC classification number: H04N19/137 , H04N19/105 , H04N19/119 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: An image encoder or decoder includes circuitry and a memory coupled to the circuitry. The circuitry, in operation, predicts a first set of samples for a first partition of a current picture with one or more motion vectors including a first motion vector and predicts a second set of samples for a first portion of the first partition with one or more motion vectors from a second partition different from the first partition. The samples of the first set of samples of the first portion of the first partition and of the second set of samples of the first portion of the first partition are weighted. A motion vector for the first portion of the first partition is stored which is based on one or both of the first motion vector and the second motion vector. The first partition is encoded or decoded using at least the weighted samples of the first portion of the first partition.
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公开(公告)号：US11811479B2
公开(公告)日：2023-11-07
申请号：US18065533
申请日：2022-12-13
Inventor： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC: H04B7/06 , H04B7/0452 , H04L1/06 , H04L1/00 , H04B7/0456 , H04L27/26 , H04B1/707 , H04L27/00
CPC classification number: H04B7/0682 , H04B7/0452 , H04B7/0456 , H04B7/0697 , H04L1/0003 , H04L1/0618 , H04B1/707 , H04B7/0602 , H04B2201/70703 , H04L27/0008 , H04L27/2602 , H04L27/2626 , Y02D30/70
Abstract: A transmission apparatus includes M signal processors that respectively generate modulated signals directed to M reception apparatuses, M being an integer equal to or greater than 2, and an antenna section. Each signal processor modulates a first bit sequence made up of two bits to generate a first modulated signal and a second modulated signal, and modulates a second bit sequence made up of other two bits to generate a third modulated signal and a fourth modulated signal, in a case of transmitting multiple streams to a corresponding one of the M reception apparatuses. The antenna section includes a first antenna that transmits the first modulated signal and the third modulated signal and a second antenna that transmits the second modulated signal and the fourth modulated signal. At least either the signals transmitted from the first antenna or the signals transmitted from the second antenna are phase-changed signals.
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公开(公告)号：US20230353783A1
公开(公告)日：2023-11-02
申请号：US18219800
申请日：2023-07-10
Inventor： Noritaka IGUCHI , Toshiyasu SUGIO
IPC: H04N19/597 , H04N19/119 , H04N19/46
CPC classification number: H04N19/597 , H04N19/119 , H04N19/46
Abstract: A three-dimensional data encoding method includes: encoding divided data items to generate encoded data items each corresponding to a respective one of the divided data items, the divided data items being included in subspaces obtained by dividing a current space including three-dimensional points, the divided data items each including one or more three-dimensional points among the three-dimensional points; and generating a bitstream including the encoded data items and control information items each corresponding to a respective one of the encoded data items. Each of the control information items includes a first identifier and a second identifier. The first identifier indicates a subspace corresponding to an encoded data item corresponding to the control information item, and the second identifier indicates a divided data item corresponding to the encoded data item corresponding to the control information item.
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公开(公告)号：US20230353782A1
公开(公告)日：2023-11-02
申请号：US18218313
申请日：2023-07-05
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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Patent Agency Ranking
公开(公告)号：US20230353270A1
公开(公告)日：2023-11-02
申请号：US18350624
申请日：2023-07-11
Inventor： Ankit BHAMRI , Hidetoshi SUZUKI
CPC classification number: H04J13/102 , H04L5/10 , H04W76/27 , H04J13/12 , H04L27/2607 , H04L5/0051
Abstract: The present disclosure relates to a mobile terminal, a base station, a method for data transmission/reception by a mobile terminal, and a method for data reception/transmission by a base station. The mobile terminal comprises circuitry which, in operation, receives a parameter defining a configuration for assigning to ports respective resources for carrying reference signals, the resources being grouped in a plurality of code division multiplexing, CDM, groups, and receives control information indicating one of the set of layer-to-port mapping combinations which is to be applied for arranging reference signals on ports of at least one CDM group for data transmission and/or reception, wherein the control information indicates a co-scheduling information for the at least one and/or at least a different CDM group of the plurality of CDM groups for the same data transmission and/or reception.
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公开(公告)号：US20230353202A1
公开(公告)日：2023-11-02
申请号：US18219181
申请日：2023-07-07
Inventor： Yutaka MURAKAMI , Tomohiro KIMURA , Mikihiro OUCHI
IPC: H04B7/06 , H04J11/00 , H04B7/04 , H04B7/0417 , H04L27/26
CPC classification number: H04B7/06 , H04B7/04 , H04B7/0421 , H04B7/0615 , H04B7/0671 , H04J11/00 , H04L27/2613 , H04L27/26134
Abstract: A transmission method includes generating a first precoded signal and a second precoded signal by performing a precoding process on a first baseband signal and a second baseband signal, outputting a third signal by inserting a pilot signal into the first precoded signal, outputting a fourth signal by applying a first phase change to the second precoded signal, outputting a fifth signal by inserting a pilot signal into the fourth signal, and outputting a sixth signal by applying a second phase change to the fifth signal.
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公开(公告)号：US20230351763A1
公开(公告)日：2023-11-02
申请号：US18218251
申请日：2023-07-05
Inventor： Takahiro NISHI , Tadamasa TOMA , Toshiyasu SUGIO
CPC classification number: G06V20/56 , G06T7/70 , G06T15/20 , G06V10/462 , G06V20/647 , G06T2207/30252
Abstract: A data generator which achieves further improvement includes circuitry and memory connected to the circuitry. The circuitry, in operation: obtains sensing data from each of a plurality of moving bodies that includes a plurality of sensors, the sensing data being configured based on results of sensing by the plurality of sensors; and generates synthesized data by mapping the sensing data of the moving body into a virtual space, and when generating the synthesized data, determines a position of the sensing data to be mapped into the virtual space, based at least on a position of the moving body in a real space corresponding to the sensing data.
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公开(公告)号：US20230345035A1
公开(公告)日：2023-10-26
申请号：US18217840
申请日：2023-07-03
Inventor： Jing Ya LI , Chong Soon LIM , Ru Ling LIAO , Han Boon TEO , Hai Wei SUN , Che Wei KUO , Kiyofumi ABE , Takahiro NISHI , Tadamasa TOMA
IPC: H04N19/513 , H04N19/139 , H04N19/159 , H04N19/176
CPC classification number: H04N19/513 , H04N19/139 , H04N19/159 , H04N19/176
Abstract: Provided is an encoder including circuitry and memory coupled to the circuitry. A prediction mode for a current block is an affine mode, and in operation, the circuitry: derives a base motion vector which is a motion vector to be used in a prediction process for the current block, and is a motion vector at an affine-mode control point in the current block; derives a first motion vector different from the base motion vector; derives a motion vector difference based on a difference between the base motion vector and the first motion vector; determines whether the motion vector difference is greater than a threshold; if so, modifies a second motion vector different from the base motion vector and the first motion vector, and if not, does not modify the second motion vector; and encodes the current block using the second motion vector modified or the second motion vector not modified.
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公开(公告)号：US20230344996A1
公开(公告)日：2023-10-26
申请号：US18208380
申请日：2023-06-12
Inventor： Chong Soon LIM , Hai Wei SUN , Jing Ya LI , Han Boon TEO , Che-Wei KUO , Chu Tong WANG , Kiyofumi ABE , Takahiro NISHI , Tadamasa TOMA , Yusuke KATO
IPC: H04N19/117 , H04N19/132 , H04N19/169 , H04N19/82
CPC classification number: H04N19/117 , H04N19/132 , H04N19/188 , H04N19/82
Abstract: An encoder includes circuitry and memory coupled to the circuitry. In operation, the circuitry: encodes information for deriving a parameter into a header of a bitstream; filters reconstructed samples in a first image using a filtering process, to generate a second image; determines whether the parameter has a predefined value; encodes a third image using the second image when the parameter has the predefined value; and encodes the third image using the first image when the parameter does not have the predefined value.
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