Patents by Inventor Xiaotong Liu
Xiaotong Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210138507Abstract: The present disclosure provides a capacitive micro-machined ultrasonic transducer, a method for preparing the same, a panel, and a device, and belongs to the technical field of ultrasonic imaging. A capacitive micro-machined ultrasonic transducer includes a first electrode, a vibrating diaphragm layer and a second electrode that are arranged in order from bottom to top, a cavity existing between the first electrode and the vibrating diaphragm layer, in which the capacitive micro-machined ultrasonic transducer further includes a third electrode located on a surface of the vibrating diaphragm layer proximate to the cavity, an orthogonal projection of the third electrode on the first electrode covers a part of an orthogonal projection of the cavity on the first electrode. The technical solution of the present disclosure can realize the conversion of the frequency of the ultrasonic waves emitted by the capacitive micro-machined ultrasonic transducer.Type: ApplicationFiled: October 25, 2019Publication date: May 13, 2021Inventors: Xiaotong LIU, Yongchun TAO
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Patent number: 10879929Abstract: The invention relates to the field of decoders, more specifically, to a decoding method of LDPC (Low Density Parity Check Code). The decoding method comprising: in the rwsr (Row-Wise Scanning Round) phase, the recovery circuit reads a plurality of sign bits, the absolute value of a minimum value, the absolute value of a second smallest value and the absolute value of a third smallest value which are stored previously, and they are output by a comparison and a selector, the output of the comparator and selector is shifted, and then is combined with each sign bit to obtain an update message of the previous check node, the update message is subtracted from the posterior probability by the addition circuit to obtain an input of the update unit.Type: GrantFiled: April 19, 2017Date of Patent: December 29, 2020Assignee: AMLOGIC (SHANGHAI) CO., LTDInventors: Xiaotong Liu, Xiao Zhang
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Publication number: 20200372106Abstract: A method, system and a computer program product are provided for generating a natural language model that is substantially independent of languages and domains by transforming monolingual embeddings into a multilingual embeddings in a first shared embedding space using a cross-lingual learning process, and then transforming the multilingual embeddings into cross-domain, multilingual embeddings in a second shared embedding space using a cross-domain learning process, where the multilingual embeddings and/or cross-domain, multilingual embeddings are evaluated to measure a degree to which the embeddings associate a set of target concepts with a set of attribute words.Type: ApplicationFiled: May 24, 2019Publication date: November 26, 2020Inventors: Xiaotong Liu, Anbang Xu, Yingbei Tong, Rama Kalyani T. Akkiraju
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Publication number: 20200372115Abstract: A method, system and a computer program product are provided for aligning embeddings of multiple languages and domains into a shared embedding space by transforming monolingual embeddings into a multilingual embeddings in a first shared embedding space using a cross-lingual learning process, and then transforming the multilingual embeddings into cross-domain, multilingual embeddings in a second shared embedding space using a cross-domain learning process.Type: ApplicationFiled: May 24, 2019Publication date: November 26, 2020Inventors: Xiaotong Liu, Anbang Xu, Yingbei Tong, Rama Kalyani T. Akkiraju
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Patent number: 10593350Abstract: A method, a computer program product, and an information handling system is provided for reducing cost and improving real-time performance for analyzing and representing customer care communication progression based on tone assessments by monitoring communications between a plurality of customers and a plurality of representatives to form a plurality of interaction histories. Analyzing a text form of the plurality of interaction histories according to a Tone Latent Dirichlet Allocation [T-LDA] model to determine a plurality of conversation tones. Mapping the plurality of conversation tones to a plurality of conversation phases and providing a representation of the conversation tones identifying a first customer tone at a first conversation phase and a second customer tone at a second conversation phase.Type: GrantFiled: April 21, 2018Date of Patent: March 17, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Xiaotong Liu, Anbang Xu, Zhe Liu, Vibha S. Sinha, Rama Kalyani T. Akkiraju
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Publication number: 20190325897Abstract: A method, a computer program product, and an information handling system is provided for reducing cost and improving real-time performance for analyzing and representing customer care communication progression based on tone assessments by monitoring communications between a plurality of customers and a plurality of representatives to form a plurality of interaction histories. Analyzing a text form of the plurality of interaction histories according to a Tone Latent Dirichlet Allocation [T-LDA] model to determine a plurality of conversation tones. Mapping the plurality of conversation tones to a plurality of conversation phases and providing a representation of the conversation tones identifying a first customer tone at a first conversation phase and a second customer tone at a second conversation phase.Type: ApplicationFiled: April 21, 2018Publication date: October 24, 2019Inventors: XIAOTONG LIU, ANBANG XU, ZHE LIU, VIBHA S. SINHA, RAMA KALYANI T. AKKIRAJU
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Patent number: 10412031Abstract: An information filtering method for use in a terminal, includes: calculating, based on application information received by the terminal, an information display characteristic of the application information, the information display characteristic representing a display feature of the application information; determining the application information as interfering information, if the information display characteristic meets an interference characteristic condition; and filtering out the application information.Type: GrantFiled: April 19, 2017Date of Patent: September 10, 2019Assignee: Beijing Xiaomi Mobile Software Co., Ltd.Inventors: Yongshan Wang, Donghai Huo, Xiaotong Liu
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Publication number: 20190206618Abstract: A method of manufacturing a plurality of R—Fe—B sintered magnets using a plasma flame apparatus and a furnace. The method includes a first step of providing a sintered magnet block. Then, the sintered magnet block is machined to form machined magnets. The method continues with a step of cleaning surfaces of the machined magnets to form cleaned magnets. The method then proceeds with depositing a plurality of spherical droplets of a heavy rare earth powder selected from at least one of Dy or Tb on the surfaces of the cleaned magnets, to produce a plurality of magnets including a uniform film of Dy or Tb. Then, the magnets including the uniform film are sintered to diffuse the uniform film into the magnets through grain boundary phases of the magnets to produce the R—Fe—B sintered magnets. A plasma flame apparatus is also disclosed herein.Type: ApplicationFiled: December 31, 2018Publication date: July 4, 2019Inventors: Zhongjie Peng, Xiaotong Liu
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Patent number: 10270623Abstract: The invention relates to the field of channel coding and modulation technique, more specifically, to a single-carrier channel estimation method, comprising: equalizing a carrier of an input current-frame signal and of a channel of the current-frame signal, to obtain a sequence code of the current-frame signal, decision value of transmission sequence of the current-frame signal and estimated value of signal-to-noise ratio of the current-frame signal; calculating the current-frame signal, the sequence code and the estimated value of signal-to-noise ratio to obtain a initial channel estimation; calculating the current-frame signal, the decision value of transmission sequence and the estimated value of signal-to-noise ratio to obtain a reference channel; obtaining a filtered channel value after filtering the reference channel; and obtaining the estimated channel of the next-frame signal after implementing adaptive filtering on the estimated value of initial channel and filtered channel value, by reference to theType: GrantFiled: April 18, 2017Date of Patent: April 23, 2019Assignee: AMLOGIC (SHANGHAI) CO., LTD.Inventors: Jinhong Zhang, Jin Niu, Xiaotong Liu, Chun Wang, Shixi Bu
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Publication number: 20190116067Abstract: The invention relates to the field of channel coding and modulation technique, more specifically, to a single-carrier channel estimation method, comprising: equalizing a carrier of an input current-frame signal and of a channel of the current-frame signal, to obtain a sequence code of the current-frame signal, decision value of transmission sequence of the current-frame signal and estimated value of signal-to-noise ratio of the current-frame signal; calculating the current-frame signal, the sequence code and the estimated value of signal-to-noise ratio to obtain a initial channel estimation; calculating the current-frame signal, the decision value of transmission sequence and the estimated value of signal-to-noise ratio to obtain a reference channel; obtaining a filtered channel value after filtering the reference channel; and obtaining the estimated channel of the next-frame signal after implementing adaptive filtering on the estimated value of initial channel and filtered channel value, by reference to theType: ApplicationFiled: April 18, 2017Publication date: April 18, 2019Inventors: Jinhong ZHANG, Jin NIU, Xiaotong LIU, Chun WANG, Shixi BU
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Patent number: 10153923Abstract: The invention relates to the field of the equalizer, more specifically, to a single carrier equalizer and a receiver system comprises the single carrier equalizer. It is used to gradually improve the performance of the frequency domain equalizer by the way of iterations. The present invention uses an iterative updater to conduct a first iteration based on the frequency domain value of the input signal and the frequency domain value of the channel of the input signal, and transmits the iteration result to the inverse fast Fourier transformer. And the signal decision device is used to judge the value of the output of the inverse fast Fourier transformer, and the output signal of the signal decision device is transmitted to the fast Fourier transformer and the iterative updater respectively.Type: GrantFiled: April 18, 2017Date of Patent: December 11, 2018Inventors: Jin Niu, Xiaotong Liu, Jinhong Zhang, Chun Wang
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Patent number: 10103909Abstract: The invention relates to the field of terrestrial broadcast transmission, more specifically, to a channel estimation method. A channel estimation method used for estimating a channel of a next carrier signal frame, the channel estimation method comprising: equalizing a carrier of the current signal frame and of the channel of the current signal frame, to obtain a transmission sequence of the current signal frame and a signal-to-noise ratio of the current signal frame, calculating the transmission sequence to get the reference channel, generating an initial channel estimation based on the signal-to-noise ratio of the signal frame, processing the estimated initial channel and the reference channel by an adaptive filtering method, to obtain an estimated channel of next signal frame.Type: GrantFiled: April 18, 2017Date of Patent: October 16, 2018Assignee: AMLOGIC (SHANGHAI) CO., LTD.Inventors: Jinhong Zhang, Jin Niu, Xiaotong Liu, Chun Wang
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Publication number: 20180287637Abstract: The invention relates to the field of decoders, more specifically, to a decoding method of LDPC (Low Density Parity Check Code). The decoding method comprising: in the rwsr (Row-Wise Scanning Round) phase, the recovery circuit reads a plurality of sign bits, the absolute value of a minimum value, the absolute value of a second smallest value and the absolute value of a third smallest value which are stored previously, and they are output by a comparison and a selector, the output of the comparator and selector is shifted, and then is combined with each sign bit to obtain an update message of the previous check node, the update message is subtracted from the posterior probability by the addition circuit to obtain an input of the update unit.Type: ApplicationFiled: April 19, 2017Publication date: October 4, 2018Inventors: Xiaotong Liu, Xiao Zhang
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Publication number: 20180191533Abstract: The invention relates to the field of terrestrial broadcast transmission, more specifically, to a channel estimation method. A channel estimation method used for estimating a channel of a next carrier signal frame, the channel estimation method comprising: equalizing a carrier of the current signal frame and of the channel of the current signal frame, to obtain a transmission sequence of the current signal frame and a signal-to-noise ratio of the current signal frame, calculating the transmission sequence to get the reference channel, generating an initial channel estimation based on the signal-to-noise ratio of the signal frame, processing the estimated initial channel and the reference channel by an adaptive filtering method, to obtain an estimated channel of next signal frame.Type: ApplicationFiled: April 18, 2017Publication date: July 5, 2018Inventors: Jinhong Zhang, Jin Niu, Xiaotong Liu, Chun Wang
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Publication number: 20180191531Abstract: The invention relates to the field of the equalizer, more specifically, to a single carrier equalizer and a receiver system comprises the single carrier equalizer. It is used to gradually improve the performance of the frequency domain equalizer by the way of iterations. The present invention uses an iterative updater to conduct a first iteration based on the frequency domain value of the input signal and the frequency domain value of the channel of the input signal, and transmits the iteration result to the inverse fast Fourier transformer. And the signal decision device is used to judge the value of the output of the inverse fast Fourier transformer, and the output signal of the signal decision device is transmitted to the fast Fourier transformer and the iterative updater respectively.Type: ApplicationFiled: April 18, 2017Publication date: July 5, 2018Inventors: Jin NIU, Xiaotong LIU, Jinhong ZHANG, Chun WANG
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Publication number: 20180191529Abstract: The invention relates to the field of equalizer technology, more specifically, to a signal decision device and a signal decision method. By calculating an error for the hard decision signal, and then implementing a condition decision via the threshold condition, the invention decides to output the equalization time domain signal or the hard decision signal, and reduces the error of the output signal. The above technical solution improves the performance of the equalizer by implementing the iteratively update directly via soft bit information instead of the hard decision signal.Type: ApplicationFiled: April 18, 2017Publication date: July 5, 2018Inventors: Jin NIU, Xiaotong LIU, Jinhong ZHANG, Chun WANG
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Publication number: 20170310621Abstract: An information filtering method for use in a terminal, includes: calculating, based on application information received by the terminal, an information display characteristic of the application information, the information display characteristic representing a display feature of the application information; determining the application information as interfering information, if the information display characteristic meets an interference characteristic condition; and filtering out the application information.Type: ApplicationFiled: April 19, 2017Publication date: October 26, 2017Inventors: Yongshan WANG, Donghai HUO, Xiaotong LIU
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Patent number: 9672980Abstract: The present invention discloses an R-T-B-M-C sintered magnet and a method for manufacturing the R-T-B-M-C sintered magnet from an R-T-B-M-C alloy powder including the lubricant. The present invention also discloses an apparatus for manufacturing the R-T-B-M-C sintered magnet from the R-T-B-M-C alloy powder including the lubricant. The apparatus includes an alloy powder feeding mechanism for distributing the R-T-B-M-C alloy powder including the lubricant, a filling mechanism including a mold for receiving the R-T-B-M-C alloy powder including the lubricant, a press mechanism for compressing the R-T-B-M-C alloy powder including the lubricant and a stacking mechanism for storing the mold including the R-T-B-M-C alloy powder including the lubricant.Type: GrantFiled: January 29, 2014Date of Patent: June 6, 2017Assignee: YANTAI SHOUGANG MAGNETIC MATERIALS INC.Inventors: Zhongjie Peng, Xiaotong Liu, Shengli Cui, Kaihong Ding
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Publication number: 20140210580Abstract: The present invention discloses an R-T-B-M-C sintered magnet and a method for manufacturing the R-T-B-M-C sintered magnet from an R-T-B-M-C alloy powder including the lubricant. The present invention also discloses an apparatus for manufacturing the R-T-B-M-C sintered magnet from the R-T-B-M-C alloy powder including the lubricant. The apparatus includes an alloy powder feeding mechanism for distributing the R-T-B-M-C alloy powder including the lubricant, a filling mechanism including a mold for receiving the R-T-B-M-C alloy powder including the lubricant, a press mechanism for compressing the R-T-B-M-C alloy powder including the lubricant and a stacking mechanism for storing the mold including the R-T-B-M-C alloy powder including the lubricant.Type: ApplicationFiled: January 29, 2014Publication date: July 31, 2014Inventors: Zhongjie Peng, Xiaotong Liu, Shengli Cui, Kaihong Ding