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公开(公告)号：US20220349915A1
公开(公告)日：2022-11-03
申请号：US17760912
申请日：2020-09-23
发明人： Tota MIZUNO , Naoaki ITAKURA , Chisato AMADA , Nobuhiko HORIE , Takeshi HANADA , Taiyo NAKASHIMA
IPC分类号： G01P15/18
摘要： A psychological evaluation device that estimates interest of a subject in a content used integrally with a terminal held by the subject. Acceleration data obtained by an acceleration sensor built in the terminal is acquired, and a frequency analysis is performed on the acquired acceleration data to obtain acceleration in the gravity direction of the terminal. By obtaining the acceleration in the gravity direction of the terminal, it is possible to, for example, estimate the subject's interest in the content based on the integral value of each frequency component of the acceleration in the gravity direction obtained by performing the frequency analysis.
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公开(公告)号：US20220342483A1
公开(公告)日：2022-10-27
申请号：US17859037
申请日：2022-07-07
发明人： Hiroshi YOKOI , Yuankang SHI , Shota TOGO , Yinlai JIANG , Yusuke YAMANOI
摘要： A conversion device includes: a unit attribute update unit that specifies a unit associated with a representative value approximating a feature vector for a biological signal, and updates a representative value and energy of the specified unit; a unit update unit that, when a plurality of feature vectors outside a predetermined range of a representative value of a unit of the unit data are acquired within a predetermined time, adds data for a new unit identifier to unit data; a class update unit that, when there is no class including a unit having energy within a predetermined range of energy of the new unit, adds data for a new class identifier to class data; and a motion update unit that updates motion data by associating, with an identifier of a class acquired after updating the class data, an identifier of a motion corresponding to the class.
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公开(公告)号：US20220280107A1
公开(公告)日：2022-09-08
申请号：US17750847
申请日：2022-05-23
发明人： Toru SHIMUTA , Keiki TAKADAMA , Ryo TAKANO
IPC分类号： A61B5/00 , A61B5/0205 , A61B5/024
摘要： An analysis system and method are provided for analyzing physical information and acquiring biological data of a user from a biological data acquisition sensor. The exemplary analysis system includes a circadian rhythm calculator that calculates an average circadian rhythm of the user; an autonomic nerve analyzer that performs autonomic nerve analysis based on a variation in the biological data; and a physical information analyzer that weights an autonomic nerve analysis result analyzed by the autonomic nerve analyzer with a weighting coefficient set based on a measurement time at which the biological data of the user is acquired and a cycle of the average circadian rhythm. The physical information analyzer also estimates a change in a circadian rhythm with respect to the average circadian rhythm based on the weighted autonomic nerve analysis result.
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公开(公告)号：US11308975B2
公开(公告)日：2022-04-19
申请号：US17047504
申请日：2019-04-11
发明人： Kota Takahashi , Tsukasa Miyamoto , Yoshiyuki Ono , Yoji Abe , Hiroshi Inoue
IPC分类号： G10L21/0332 , G10L21/0364 , H04R3/00 , H04R25/00 , H04S1/00 , G10H7/00 , G10H1/46 , H04S7/00 , H04H60/04 , H03G3/20
摘要： A mixing device of a first signal and a second signal on a time-frequency plane, includes a control signal generation unit to generate a control signal indicating whether to perform prioritized mixing that includes amplification of the first signal and attenuation of the second signal; and a gain derivation unit to derive a first gain for amplifying the first signal and a second gain for attenuating the second signal based on the control signal. The control signal takes at least a first value and a second value different from the first value, wherein the first value is not continuous beyond a predetermined bandwidth on a frequency axis. The mixing device applies the prioritized mixing to the first and second signals when the control signal indicates the first value, and applies simple addition to the first and second signals when the control signal indicates the second value.
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公开(公告)号：US11208592B2
公开(公告)日：2021-12-28
申请号：US16420351
申请日：2019-05-23
发明人： Taizo Masuda , Kiyoto Sasaki , Shen Qing , Feng Liu , Yaohong Zhang , Chao Ding
摘要： There is provided a method of preparing formamidinium lead halide perovskite quantum dots having a photoluminescence quantum yield higher than before. The disclosed method comprises steps of: preparing a lead halide solution by dissolving lead halide (II), oleic acid and oleylamine in a nonpolar solvent; preparing a formamidinium solution by dissolving formamidine acetate salt and oleic acid in a nonpolar solvent; mixing the formamidinium solution and the lead halide solution to form quantum dots; and centrifuging the mixed solution to obtain sediment; dispersing the sediment in a nonpolar solvent to prepare a crude quantum dot solution; mixing the crude quantum dot solution with methyl acetate; and centrifuging the crude quantum dot solution mixed with the methyl acetate to obtain sediment as purified quantum dots. The durable quantum dots are stably formed by injecting the lead halide solution into the formamidinium solution heated at 60° C.-90° C.
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公开(公告)号：US20210317366A1
公开(公告)日：2021-10-14
申请号：US17218681
申请日：2021-03-31
发明人： Taizo Masuda , Qing Shen , Chao Ding , Yaohong Zhang , Feng Liu
摘要： A method of the present disclosure for producing methylammonium lead halide perovskite quantum dots includes providing a Pb-oleic acid solution containing a Pb source that is soluble in oleic acid, oleic acid, and a non-polar solvent, providing a methylammonium-oleic acid solution containing methylammonium acetate and oleic acid, providing a reaction solution of tetrabutylammonium halide and oleylamine, and mixing the Pb-oleic acid solution, the methylammonium-oleic acid solution, and the reaction solution.
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7.发明申请公开(公告)号：US20210152936A1
公开(公告)日：2021-05-20
申请号：US17047514
申请日：2019-04-11
发明人： Kota TAKAHASHI , Tsukasa MIYAMOTO , Yoshiyuki ONO , Yoji ABE
摘要： An information processing device includes a first time-frequency converter configured to perform a time-frequency conversion with respect to an input signal, using a window function having a first width, a second time-frequency converter configured to perform a time-frequency conversion with respect to the input signal, using a second window function having a second width smaller than the first width, and a modification processing unit configured to modify an output of the second time-frequency converter, using a frequency analysis result based on an output of the first time-frequency converter.
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公开(公告)号：US10938119B2
公开(公告)日：2021-03-02
申请号：US16096007
申请日：2017-04-24
发明人： Akira Saito , Kazuhiko Honjo , Ryo Ishikawa , Hiroto Otsuka
摘要： A wireless communication apparatus includes a transmitting antenna; and a receiving antenna that receives a wireless signal transmitted from the transmitting antenna. Each of the transmitting antenna and the receiving antenna includes a plurality of circular loop antennas arranged concentrically in an identical plane, each of the plurality of circular loop antennas having a loop perimeter approximately equal to an integer multiple of one wavelength determined from a frequency in a wireless communication; and a plurality of feeding sections individually connected with the plurality of circular loop antennas. A central axis of the plurality of circular loop antennas of the transmitting antenna and a central axis of the plurality of circular loop antennas of the receiving antenna are arranged approximately on a straight line. Thus, a wireless signal is transmitted between the circular loop antennas having a loop perimeter of a transmitting side and a receiving side.
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公开(公告)号：US20180024423A1
公开(公告)日：2018-01-25
申请号：US15720167
申请日：2017-09-29
CPC分类号： G03B21/13 , G03B17/54 , G03B37/04 , G06T3/005 , G09G3/001 , G09G5/00 , G09G2320/0233 , G09G2320/0242 , G09G2320/0673 , G09G2320/0693 , H04N5/74 , H04N9/31 , H04N9/312 , H04N9/3147 , H04N9/3176 , H04N9/3182
摘要： Even when a high-performance imaging apparatus is not used, luminance unevenness and color unevenness of an image (video) projected on a projection plane by the projection type projector apparatus are appropriately reduced. Using a coefficient Br (0≦Br≦1) set by a coefficient setting unit, the projection system obtains, based on the gamma characteristic of the entire system of the projection system, a target image for reducing the number of pixels saturated when the image is projected. Then, the projection system performs correction processing using the obtained target image based on the gamma characteristic of the entire system of the projection system and a white value. This reduces the number of saturated pixels of the projected image in the projection system. Furthermore, even in a case or similar cases when a captured image obtained by capturing a projected image has a bad S/N ratio, image projection processing that does not cause a user discomfort in viewing the projected image (or captured image) is achieved.
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公开(公告)号：US20170100586A1
公开(公告)日：2017-04-13
申请号：US15126879
申请日：2014-07-23
发明人： Takeshi AKIBA , Hiroshi YOKOI
CPC分类号： A61N1/36003 , A61B5/0408 , A61B5/1118 , A61B5/1124 , A61B5/224 , A61B2562/0219 , A61B2562/0247 , A61H1/0237 , A61N1/0452 , A61N1/32 , A61N1/36 , A61N1/36014 , A63B21/00065 , A63B21/06 , A63B21/151 , A63B21/154 , A63B21/4034 , A63B21/4045 , A63B21/4047 , A63B23/03508 , A63B23/0405 , A63B2213/004 , A63B2220/10 , A63B2220/30 , A63B2220/40 , A63B2220/56 , A63B2220/803 , A63B2220/836 , A63B2230/60 , G06F19/00 , G06F19/3481
摘要： Provided is an electrical stimulation device including a first to fourth electrodes, and an electrical stimulation generation section which supplies an electrical stimulation signal to each of the first to fourth electrodes. The electrical stimulation generation section supplies, to the first and second electrodes, an electrical stimulation signal according to a first stimulation pattern, and supplies, to the third and fourth electrodes, an electrical stimulation signal according to a second stimulation pattern. The first stimulation pattern is set so that an electrical stimulation signal for changing stimulation intensity according to a first waveform is supplied to the first electrode, and an electrical stimulation signal for changing stimulation intensity according to a second waveform is supplied to the second electrode, the second waveform being increased and decreased in conjunction with the first waveform. The second stimulation pattern is set so that an electrical stimulation signal for changing stimulation intensity according to a third waveform is supplied to the third electrode, and an electrical stimulation signal for changing stimulation intensity according to a fourth waveform is supplied to the fourth electrode, the fourth waveform being increased and decreased in conjunction with the third waveform. The electrical stimulation generation section alternately performs electrical stimulation of the first stimulation pattern and electrical stimulation of the second stimulation pattern.
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