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公开(公告)号：US11375207B2
公开(公告)日：2022-06-28
申请号：US17188448
申请日：2021-03-01
Inventor： Masato Ohkawa , Hideo Saitou , Tadamasa Toma , Takahiro Nishi , Kiyofumi Abe , Ryuichi Kanoh
IPC: H04N19/159 , H04N19/176 , H04N19/61 , H04N19/625
Abstract: An encoder which encodes a current block of a picture includes a processor and memory. Using the memory, the processor: determines whether intra prediction is to be used for the current block; and when it is determined that intra prediction is to be used for the current block, generates first transform coefficients by performing first transform of residual signals of the current block using a first transform basis; quantizes the first transform coefficients when an intra prediction mode for the current block is a determined mode and the first transform basis is different from a determined transform basis; and generates second transform coefficients by performing second transform of the first transform coefficients using a second transform basis, and quantizes the second transform coefficients, when the intra prediction mode for the current block is not the determined mode or when the first transform basis matches the determined transform basis.
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公开(公告)号：US11368703B2
公开(公告)日：2022-06-21
申请号：US16587961
申请日：2019-09-30
Inventor： Chong Soon Lim , Hai Wei Sun , Sughosh Pavan Shashidhar , Ru Ling Liao , Han Boon Teo , Takahiro Nishi , Ryuichi Kanoh , Tadamasa Toma
IPC: H04N19/96 , H04N19/44 , H04N19/119 , H04N19/124 , H04N19/13 , H04N19/159 , H04N19/176
Abstract: An image decoder splits a block of a picture into a plurality of sub blocks in a first direction using a first partition mode; and decodes the plurality of sub blocks, wherein, when the block is sized N pixels by 2N pixels and the first direction is along the 2N pixels, N being an integer, the first partition mode includes splitting the block into the plurality of sub blocks including at least one sub block sized N/4 pixels by 2N pixels, and excludes splitting the block into two sub blocks sized N/2 pixels by 2N pixels.
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公开(公告)号：US11368338B2
公开(公告)日：2022-06-21
申请号：US16929918
申请日：2020-07-15
Inventor： Tomoyuki Haga , Manabu Maeda , Takamitsu Sasaki , Hideki Matsushima
Abstract: A network system includes a first network through which a frame of a first type is transmitted in accordance with a first communication protocol and includes a second network in which a frame of a second type is transmitted in accordance with a second communication protocol. A gateway device is connected to the first network and the second network. The gateway device sequentially receives frames of the first type from the first network and determines whether to transmit data regarding the received frames of the first type to the second network. The gateway device transmits, to the second network, a frame of the second type including data regarding a plurality of the frames of the first type determined to be transmitted to the second network when a condition relating to a number of frames of the first type received by the gateway device is satisfied.
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公开(公告)号：US20220191947A1
公开(公告)日：2022-06-16
申请号：US17593671
申请日：2020-03-24
Inventor： Akihiko NISHIO , Hidetoshi SUZUKI
Abstract: The present invention provides a transmission device, a reception device, a transmission method, and a reception method that implement an appropriate random access procedure in accordance with a propagation delay between a terminal and a base station. A terminal (100) is provided with a wireless transmission unit (103) which transmits a random access channel signal, and a control unit (107) which sets, from among a plurality of preamble sequence candidates, a preamble sequence for use in the random access channel signal. At least one of the plurality of preamble sequence candidates is composed of two or more mutually different code sequences.
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公开(公告)号：US20220191946A1
公开(公告)日：2022-06-16
申请号：US17442928
申请日：2020-03-24
Inventor： Akihiko NISHIO , Hidetoshi SUZUKI
Abstract: The purpose of the invention is to realize appropriate random-access procedures in accordance with propagation delay between a terminal and a base station. A terminal (100) comprises a wireless transmission unit (104) that transmits signals of a random-access channel, and a control unit (108) that controls resource settings regarding transmission of signals on the random-access channel on the basis of effectiveness of information relating to adjustment of transmission timing.
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Patent Agency Ranking
公开(公告)号：US20220191545A1
公开(公告)日：2022-06-16
申请号：US17689394
申请日：2022-03-08
Inventor： Toshiyasu SUGIO , Noritaka IGUCHI
IPC: H04N19/597 , H04N19/61 , H04N19/18
Abstract: A three-dimensional data encoding method includes: generating a predicted value of attribute information of a current node in an N-ary tree structure of three-dimensional points included in point cloud data, N being an integer greater than or equal to 2; and encoding the attribute information of the current node using the predicted value and a transform process that performs, for each of layers, an operation for separating each of input signals into a first component and a second component. In the generating of the predicted value, an item of attribute information of a node among first nodes which is to be used in generating the predicted value of the current node is selected from items of attribute information of the first nodes, the first nodes including a parent node of the current node and belonging to a same layer as the parent node.
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公开(公告)号：US20220191532A1
公开(公告)日：2022-06-16
申请号：US17687846
申请日：2022-03-07
Inventor： Chi WANG , Pongsak LASANG , Toshiyasu SUGIO , Tatsuya KOYAMA
IPC: H04N19/46 , H04N19/597 , H04N19/96
Abstract: A three-dimensional data encoding method includes: generating first information in which an N-ary tree structure of a plurality of three-dimensional points included in three-dimensional data is expressed using a first formula, where N is an integer of 2 or higher; and generating a bitstream including the first information. The first information includes pieces of three-dimensional point information each associated with a corresponding one of the plurality of three-dimensional points. The pieces of three-dimensional point information each include indexes each associated with a corresponding one of a plurality of levels in the N-ary tree structure. The indexes each indicate a subblock, among N subblocks belonging to a corresponding one of the plurality of levels, to which a corresponding one of the plurality of three-dimensional points belongs.
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公开(公告)号：US20220190880A1
公开(公告)日：2022-06-16
申请号：US17602620
申请日：2020-03-11
Inventor： Rojan CHITRAKAR , Lei HUANG , Yoshio URABE
IPC: H04B7/024 , H04L5/00 , H04B7/0413
Abstract: An access point (AP) includes circuitry, which, in operation, generates a frame that includes joint transmission (JT) data and a JT identity that uniquely identifies the JT data. The access point further includes a transmitter, which, in operation, transmits the frame to one or more APs that jointly transmit the JT data to a communication apparatus.
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公开(公告)号：US20220182612A1
公开(公告)日：2022-06-09
申请号：US17681051
申请日：2022-02-25
Inventor： Jing Ya LI , Chong Soon LIM , Han Boon TEO , Che Wei KUO , Hai Wei SUN , Chu Tong WANG , Kiyofumi ABE , Takahiro NISHI , Tadamasa TOMA , Yusuke KATO
IPC: H04N19/105 , H04N19/14 , H04N19/159 , H04N19/176
Abstract: An encoder includes circuitry and memory coupled to the circuitry. The circuitry, in operation: determines whether a size of a current block, which is a unit for which a vector candidate list including vector candidates is generated, is less than or equal to a threshold; when the size of the current block is less than or equal to the threshold, generates the vector candidate list by registering a history-based motion vector predictor (HMVP) vector candidate in the vector candidate list from an HMVP table without performing a first pruning process; when the size of the current block is greater than the threshold, generates the vector candidate list by performing the first pruning process and registering the HMVP vector candidate in the vector candidate list from the HMVP table; and encodes the current block using the vector candidate list.
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公开(公告)号：US20220182404A1
公开(公告)日：2022-06-09
申请号：US17665218
申请日：2022-02-04
Inventor： Takeshi KISHIKAWA , Ryo HIRANO , Tomoyuki HAGA , Yoshihiro UJIIE
IPC: H04L9/40
Abstract: The control network system is connected to electronic control unit(s) and a communication device, and includes security sensor(s) that transmits a security alert indicating that an indication of a security breach is detected to the network, if the indication is detected in at least one of the network, the electronic control unit(s), or the communication device. The intrusion path analysis device includes: an alert obtainer that obtains the security alert from the security sensor(s); an event obtainer that obtains an event history of an event that occurs in the control network system; and an intrusion path analyzer that performs an analysis on an intrusion path of an attack on the basis of the security alert, the event history, and an intrusion depth indicating an intrusion level to be assumed in a case the security alert occurs, and that outputs a result of the analysis.
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