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公开(公告)号：US11323802B2
公开(公告)日：2022-05-03
申请号：US16806190
申请日：2020-03-02
Inventor： Shinichi Yuzuriha
Abstract: Included are a first obtainer which obtains a first signal output from a first microphone, a second obtainer which obtains a second signal output from a second microphone installed in a position different from a position where first microphone is installed, a delayer which delays the second signal, a mixed sounds estimator which estimates noises mixed in the first signal on the basis of the second signal delayed by the delayer, and an eraser which erases the noises from the first signal, the noises being estimated by the mixed sounds estimator.
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公开(公告)号：US11323151B2
公开(公告)日：2022-05-03
申请号：US17333334
申请日：2021-05-28
Inventor： Yutaka Murakami , Nobuhiko Hashida
IPC: H04B3/54 , H02J50/80 , H02J50/10 , B60L53/12 , B60L53/66 , B60L53/30 , H02J7/00 , H02J7/02 , H04L67/01
Abstract: A communication system includes one or more chargers and a server capable of communicating with the one or more chargers. The server obtains first information from a first vehicle via a first charger included in the one or more chargers, during charging of the first vehicle by the first charger, and supplies second information based on the first information to a second vehicle via a second charger included in the one or more chargers, during charging of the second vehicle by the second charger.
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公开(公告)号：US20220132500A1
公开(公告)日：2022-04-28
申请号：US17571365
申请日：2022-01-07
Inventor： Takashi IWAI , Daichi IMAMURA , Tomofumi TAKATA , Yoshihiko OGAWA
Abstract: It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length and a standard sequence number in a step, setting a threshold value in accordance with an RB number in a step, setting a sequence length corresponding to RB number in a step, judging whether ¦r/N−rb/Nb¦=Xth(m) is satisfied in a step, including a plurality of Zadoff-Chu sequences with a sequence number and a sequence length in a sequence group in a step if the judgment is positive, and allocating the sequence group to the same cell in a step.
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公开(公告)号：US11315550B2
公开(公告)日：2022-04-26
申请号：US16682661
申请日：2019-11-13
Inventor： Kousuke Itakura , Ko Mizuno , Misaki Doi
Abstract: A speaker recognition device according to the present disclosure includes: an acoustic feature calculator that calculates, from utterance data indicating a voice of an obtained utterance, acoustic feature of the voice of the utterance; a statistic calculator that calculates an utterance data statistic from the calculated acoustic feature; a speaker feature extractor that extracts speaker feature of a speaker of the utterance data from the calculated utterance data statistic using a deep neural network (DNN); a similarity calculator that calculates a similarity between the extracted speaker feature and pre-stored speaker feature of at least one registered speaker; and a speaker recognizer that recognizes the speaker of the utterance data based on the calculated similarity.
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565.发明申请公开(公告)号：US20220120839A1
公开(公告)日：2022-04-21
申请号：US17600513
申请日：2020-03-16
Inventor： Rohith MARS , Srikanth NAGISETTY , Chong Soon LIM , Hiroyuki EHARA , Akihisa KAWAMURA
Abstract: Provided is a direction of arrival estimation device wherein: a calculation circuit calculates a frequency weighting factor for each of a plurality of frequency components of signals recorded in a microphone array, on the basis of the differences among unit vectors indicating the directions of the sound sources of each of the plurality of frequency components; and an estimation circuit estimates the direction of arrival of a signal from the sound source, on the basis of the frequency weighting factors.
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Patent Agency Ranking
公开(公告)号：US11308966B2
公开(公告)日：2022-04-19
申请号：US16828018
申请日：2020-03-24
Inventor： Tsuyoki Nishikawa
Abstract: A speaker recognition device includes: an obtaining unit which obtains a speech uttered by a speaker included in one or more speakers; a storage which stores the speech obtained by the obtaining unit; a trigger input unit which receives a trigger; an utterance start detector which detects a start position of the speech stored in the storage, when the trigger input unit receives the trigger, the start position being a position at which utterance of the speech has started; and a speaker identification unit which identifies the speaker of the speech from the one or more speakers based on at least first timing and second timing, the first timing being timing at which the trigger input unit has received the trigger, the second timing being timing indicating the start position of the speech detected by the utterance start detector.
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公开(公告)号：US20220116257A1
公开(公告)日：2022-04-14
申请号：US17559923
申请日：2021-12-22
Inventor： YUTAKA MURAKAMI
Abstract: A communication apparatus includes a receiver and a decoder. The receiver includes a plurality of antenna elements and, in operation, receives from a base station apparatus a modulated signal mapped to one of a plurality of subframes defined in a frame corresponding to a communicable range to which the communication apparatus belongs. The plurality of subframes are defined by time-division, frequency-division, or time-and-frequency division of the frame. A maximum number of modulated signals that can be simultaneously transmitted in a subframe from the base station apparatus varies depending on the communicable range. The decoder, in operation, decodes the received modulated signal.
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公开(公告)号：US20220103843A1
公开(公告)日：2022-03-31
申请号：US17547608
申请日：2021-12-10
Inventor： Virginie DRUGEON , Tadamasa TOMA , Takahiro NISHI , Kiyofumi ABE , Yusuke KATO
IPC: H04N19/196 , H04N19/31 , H04N19/46 , H04N19/70
Abstract: An encoder includes memory and circuitry coupled to the memory. The circuitry, for each of temporal sub-layers for temporal scalability different from spatial scalability, stores first parameters into buffering period supplemental enhancement information (SEI) and encodes the first parameters. The first parameters present initial delays in timing to extract data from a coded picture buffer (CPB). The circuitry stores a second parameter into the buffering period SEI and encodes the second parameter. The second parameter indicates a total number of the temporal sub-layers. A value of the second parameter is equal to a value of a third parameter that is encoded into a sequence parameter set and indicates a total number of the temporal sub-layers.
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公开(公告)号：US20220094949A1
公开(公告)日：2022-03-24
申请号：US17539348
申请日：2021-12-01
Inventor： Kiyofumi ABE , Takahiro NISHI , Tadamasa TOMA , Ryuichi KANOH , Chong Soon LIM , Ru Ling LIAO , Hai Wei SUN , Sughosh Pavan SHASHIDHAR , Han Boon TEO , Jing Ya LI
IPC: H04N19/176 , H04N19/105 , H04N19/52 , H04N19/70
Abstract: An encoder, includes: circuitry; and memory. Using the memory, the circuitry: in inter prediction for a current block, determines a base motion vector, and writes, in an encoded signal, a delta motion vector representing (i) one direction among a plurality of directions including a diagonal direction and (ii) a distance from the base motion vector; and encodes the current block using the delta motion vector and the base motion vector as a motion vector of the current block.
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公开(公告)号：US11284412B2
公开(公告)日：2022-03-22
申请号：US16878266
申请日：2020-05-19
Inventor： Li Wang , Alexander Golitschek Edler Von Elbwart , Michael Einhaus , Hidetoshi Suzuki , Lilei Wang , Masayuki Hoshino
Abstract: Provided are a resource scheduling method, a resource determining method, an eNB, and a user equipment. The resource scheduling method for wireless communication is performed by the eNB. The wireless communication involves at least a first carrier and a second carrier. The resource scheduling method includes: transmitting a DCI in the first carrier to a UE to schedule downlink resources for a PDSCH of the second carrier, wherein the eNB is able to start transmitting a burst in the second carrier at a flexible time independent of the subframe boundaries of the second carrier after the second carrier is occupied by the eNB, and the DCI for a flexible PDSCH of the burst different from the normal PDSCH of the second carrier contains information on the time period scheduled for the flexible PDSCH. The flexible PDSCH and its corresponding RS can reuse the DwPTS subframe structure for minimal specification impact.
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