Patents by Inventor Yuanyuan Zhao
Yuanyuan Zhao 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: 20210398028Abstract: A computer-implemented conference reservation method is provided, which relate to the field of natural language processing. The method comprises: receiving a conference reservation request that is initiated by a conference organizer to reserve a conference, the conference reservation request being a text input or a speech input from the conference organizer; parsing, by means of a dialog understanding technology, the conference reservation request to obtain predefined elements of the conference, the predefined elements comprising a list of participants; determining, according to a pre-recorded schedule of the participants, a period of time during which all the participants are idle as a conferencing time; generating a conference invitation message, the conference invitation message specifying the conferencing time; and sending the conference invitation message to the participants.Type: ApplicationFiled: October 29, 2020Publication date: December 23, 2021Inventors: Ke SUN, Ying LIU, Yuanyuan ZHAO, Chao WANG, Yingzhuo SONG, Shuai GAO, Jing LIU, Di WEI, Huifeng SUN, Jianglu HU, Haohao GUO
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Publication number: 20210188290Abstract: A driving model training method, a driver identification method, apparatuses, a device and a medium are provided. The driving model training method comprises: acquiring training behavior data of a user wherein the training behavior data are associated with a user identifier; acquiring training driving data associated with the user identifier based on the training behavior data; acquiring positive and negative samples from the training driving data based on the user identifier, and dividing the positive and negative samples into a training set and a test set; training the training set using a bagging algorithm, and acquiring an original driving model; and testing the original driving model using the test set, and acquiring a target driving model. The driving model training method effectively enhances generalization of the driving model, solves the problem of a poor identification result of the current driving identification model.Type: ApplicationFiled: October 31, 2017Publication date: June 24, 2021Inventors: Xin JIN, Zhuangwei WU, Chuan ZHANG, Yuanyuan ZHAO, Duxin HUANG, Yongjian LIANG, Li HUO
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Publication number: 20210135839Abstract: The disclosure proposes a format-preserving encryption method based on a stream cipher. In this method, the first three digits of an area code are encrypted by segmenting a phone number, creating mapping rules, and establishing an area code permutation table for the first three digits of the area code, thereby ensuring a legality of an encryption result; an accuracy of encryption and decryption is ensured by performing an XOR operation on a key stream generated from the ZUC algorithm (i.e., Zu Chongzhi's algorithm) and the last seven or eight digits of the phone number, combining a modulo operation to achieve conformal encryption, and introducing a Lagrange interpolation formula. This method securely and effectively realizes a consistency and legitimacy of data formats before and after encryption, and well hides statistical characteristics of plaintext, so that data is protected during a transmission process without changing the formats.Type: ApplicationFiled: September 11, 2020Publication date: May 6, 2021Applicant: Guizhou UniversityInventors: Changgen PENG, Jia CHEN, Hongfa DING, Yuanyuan ZHAO
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Publication number: 20210065682Abstract: A human-computer interaction method can include detecting a voice input, and determining whether a first detected voice includes a wake-up word, the wake-up word being intended to wake up an avatar in a social interaction client; displaying the avatar on a live streaming room interface provided by the social interaction client, in response to determining that the first detected voice includes the wake-up word; continuing to detect a voice input, and determining a recognition result by recognizing a second detected voice; determining a user intention based on the recognition result; and controlling, based on the user intention, the avatar to output feedback information.Type: ApplicationFiled: September 3, 2020Publication date: March 4, 2021Inventors: Meizhuo LI, Yuanyuan ZHAO
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Publication number: 20200402500Abstract: A method and device for generating speech recognition model are provided. The method includes: obtaining training samples, wherein each training sample includes a speech frame sequence and a labeled text sequence; training the encoder by using the speech frame sequence as an input feature and using speech encoded frames of the speech frame sequence as an output feature; training the decoder by using the speech encoded frames as a first input feature and using the labeled text sequence as a first output feature, and obtaining a current prediction text sequence; and training the decoder again by using the speech encoded frames as a second input feature and using a sequence as a second output feature, wherein the sequence is obtained by sampling the labeled text sequence and the current prediction text sequence based on a preset probability.Type: ApplicationFiled: September 3, 2020Publication date: December 24, 2020Inventors: Yuanyuan Zhao, Jie Li, Xiaorui Wang, Yan Li
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Publication number: 20200343037Abstract: Micro-scale planar-coil transformers including one or more shields are disclosed. The one or more shields can block most common-mode current from crossing from one side to another side of a transformer. Reduction of common-mode current crossing the transformer results in reduction of dipole radiation, which is the main component of electromagnetic interference (EMI) in some transformers.Type: ApplicationFiled: April 26, 2019Publication date: October 29, 2020Applicant: Analog Devices International Unlimited CompanyInventors: Baoxing Chen, Wenhui Qin, Yuanyuan Zhao, Xin Yang, Shaoyu Ma
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Publication number: 20200036284Abstract: Power isolators for providing electrical isolation between an input port and an output port that exhibit low electromagnetic interference (EMI) are described. The low EMI may be achieved by, for example, canceling out a common mode current across a transformer in the power isolator that may be converted into EMI. The power isolator may include at least one oscillator circuit that is configured to apply a first signal to a first transformer and a second, different signal to a second transformer. The first and second signals may be configured such that the common mode current generated in each of the first and second transformers has an opposite direction. Thus, the common mode currents in the first and second transformers may at least partially cancel out. As a result, the EMI exhibited by the power isolator may be reduced.Type: ApplicationFiled: July 26, 2018Publication date: January 30, 2020Applicant: Analog Devices Global Unlimited CompanyInventors: Wenhui Qin, Xin Yang, Shaoyu Ma, Fang Liu, Yuanyuan Zhao
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Publication number: 20190017019Abstract: A novel method of inducing neural progenitor cells, oligodendrocyte progenitor cells, oligodendrocytes from human iPSCs at an unprecedented efficiency and functionality. The core of the invention is the use of experimentally discovered transcription factors at multiple critical differentiation decision points along a pluripotent to ectoderm, neural ectoderm to NPCs to OPCs to oligodendrocytes pathway in a previously unknown manner.Type: ApplicationFiled: July 13, 2018Publication date: January 17, 2019Applicant: Allele Biotechnology and Pharmaceuticals, Inc.Inventors: Jiwu WANG, Yuhui NI, Yuanyuan ZHAO
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Publication number: 20180135023Abstract: A novel method of inducing or producing hepatocytes from human induced pluripotent stem cells at an unprecedented efficiency and functionality. The core of the invention is the use of experimentally discovered mRNAs at multiple critical differentiation decision points along a pluripotent to mesendoderm to endoderm to hepatocytes pathway in a previously unknown manner.Type: ApplicationFiled: November 16, 2017Publication date: May 17, 2018Inventors: Jiwu WANG, Yuhui NI, Yuanyuan ZHAO
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Publication number: 20180135021Abstract: A novel method of inducing or producing pancreatic beta cells from human induced pluripotent stem cells at an unprecedented efficiency and functionality. The core of the invention is the use of experimentally discovered mRNAs at multiple critical differentiation decision points along a pluripotent to mesendoderm to endoderm to pancreatic endocrine cells to pancreatic beta cells pathway in a previously unknown manner.Type: ApplicationFiled: November 16, 2017Publication date: May 17, 2018Inventors: Jiwu WANG, Yuhui NI, Yuanyuan ZHAO
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Patent number: 9214175Abstract: A data storage device is disclosed comprising a first disk surface comprising servo data defining servo tracks at a first radial density, a first head, and a voice coil motor (VCM) configured to actuate the first head over the first disk surface using a servo control system. A load operation is executed to load the first head over the first disk surface, and a back electromotive force (BEMF) voltage generated by the VCM during the load operation is evaluated to generate an estimated distance traveled. The servo data on the first disk surface is detected, and an initial servo track during the load operation based on the detected servo data to generate a measured distance traveled. A gain of the servo control system is configured based on the estimated distance traveled and the measured distance traveled.Type: GrantFiled: March 16, 2015Date of Patent: December 15, 2015Assignee: Western Digital Technologies, Inc.Inventors: Wei Xi, Yuanyuan Zhao, Michael Troy Nicholls
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Patent number: 8917475Abstract: A disk drive is disclosed comprising a disk comprising servo data, and a head actuated over the disk. An offset r0 representing a difference between an axial rotation of the disk and an axial rotation of the servo data is estimated, and radial dependent timing compensation values are generated in response to the estimated r0. A phase error is generated in response to the servo data, and a control signal is generated in response to the phase error and the radial dependent timing compensation values. A frequency of an oscillator is adjusted in response to the control signal.Type: GrantFiled: December 20, 2013Date of Patent: December 23, 2014Assignee: Western Digital Technologies, Inc.Inventors: Yuanyuan Zhao, Wei Xi
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Publication number: 20140136575Abstract: System and method for log-structured garbage collection are provided. In particular, some embodiments use write pointer to read pointer offsets to enable reclamation of space within a log-structured storage medium (e.g., sequential forward only write mechanisms such as SSD, Tape, Shingled Drives, Flash Drives, etc.). These techniques allow the garbage collection system to reclaim space without copying data from one storage medium to another. Instead of copying the data, various embodiments reset the write and read pointers. In addition, different retention policies can be easily enforced while allowing for efficient garbage collection. For example, in a backup storage, each log-structured media can be designated with a retention time and only allow workloads with the specified retention time to be stored. As a result, the garbage collection incurs only read pointer movements.Type: ApplicationFiled: November 10, 2012Publication date: May 15, 2014Inventors: Yuanyuan Zhao, Per Brashers
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Patent number: 8392961Abstract: Improved access control techniques for distributed messaging systems such as content-based publish/subscribe systems are disclosed. For example, a method for providing access control in a content-based publish/subscribe system, wherein messages are delivered from publishing clients to subscribing clients via a plurality of brokers, includes the following steps/operations. One or more changes to an access control policy are specified. An access control version identifier is associated to the one or more changes. The one or more changes are sent to one or more brokers of the plurality of brokers that have a publishing client or a subscribing client associated therewith that is affected by the one or more changes. The access control version identifier associated with the one or more changes is sent to each of the plurality of brokers.Type: GrantFiled: June 11, 2008Date of Patent: March 5, 2013Assignee: International Business Machines CorporationInventors: Sumeer K. Bhola, Daniel C. Sturman, Yuanyuan Zhao
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Patent number: 8185649Abstract: The present invention is directed to a publish/subscribe system containing a plurality of brokers, a plurality of subscribers and plurality of brokers including publisher connecting brokers, intermediate brokers and subscriber connecting brokers. Subscriptions are introduced into the system by the subscribers through associated subscription brokers. New subscriptions are aggregated, assigned a virtual start time and propagated through the system toward the publishers. Each broker maintains subscription information in the form of a directed acyclic graph and a broker vector. Messages are published through the system by the publishers through their associated publisher connecting brokers. Each message is assigned a message vector associating subscriptions to that message. The published messages are routed through the brokers toward the subscribers in accordance with comparisons of message brokers and vector brokers conducted at each broker.Type: GrantFiled: July 1, 2008Date of Patent: May 22, 2012Assignee: International Business Machines CorporationInventors: Yuanyuan Zhao, Daniel Charles Sturman, Sumeer Bhola
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Patent number: 7822801Abstract: The present invention is directed to a publish/subscribe system containing a plurality of brokers, a plurality of subscribers and plurality of brokers including publisher connecting brokers, intermediate brokers and subscriber connecting brokers. Subscriptions are introduced into the system by the subscribers through associated subscription brokers. New subscriptions are aggregated, assigned a virtual start time and propagated through the system toward the publishers. Each broker maintains subscription information in the form of a directed acyclic graph and a broker vector. Messages are published through the system by the publishers through their associated publisher connecting brokers. Each message is assigned a message vector associating subscriptions to that message. The published messages are routed through the brokers toward the subscribers in accordance with comparisons of message brokers and vector brokers conducted at each broker.Type: GrantFiled: October 14, 2004Date of Patent: October 26, 2010Assignee: International Business Machines CorporationInventors: Yuanyuan Zhao, Daniel Charles Sturman, Sumeer Bhola
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Patent number: 7487246Abstract: A content-based publish/subscribe system for providing gapless message delivery from a publishing client to a subscribing client is disclosed. The system includes a plurality of brokers operatively coupled to one another via a network. Each of the brokers include at least one processor and are configured as a publisher-hosting broker, a subscriber-hosting broker or an intermediate broker. The subscriber-hosting broker may be operatively coupled to the publisher-hosting broker via the network through the intermediate broker. At least a portion of the plurality of brokers are configured so as to eliminate a need for persistent storage of messages at the intermediate broker and to substantially guarantee a gapless delivery of one or more messages transmitted by the publishing client to the subscribing client, even in the presence of a failure in the publish/subscribe system.Type: GrantFiled: June 30, 2006Date of Patent: February 3, 2009Assignee: Irternational Business Machines CorporationInventors: Mark C. Astley, Joshua S. Auerbach, Sumeer K. Bhola, Marc A. Kaplan, Robert E. Strom, Yuanyuan Zhao
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Publication number: 20080288655Abstract: The present invention is directed to a publish/subscribe system containing a plurality of brokers, a plurality of subscribers and plurality of brokers including publisher connecting brokers, intermediate brokers and subscriber connecting brokers. Subscriptions are introduced into the system by the subscribers through associated subscription brokers. New subscriptions are aggregated, assigned a virtual start time and propagated through the system toward the publishers. Each broker maintains subscription information in the form of a directed acyclic graph and a broker vector. Messages are published through the system by the publishers through their associated publisher connecting brokers. Each message is assigned a message vector associating subscriptions to that message. The published messages are routed through the brokers toward the subscribers in accordance with comparisons of message brokers and vector brokers conducted at each broker.Type: ApplicationFiled: July 1, 2008Publication date: November 20, 2008Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Yuanyuan Zhao, Daniel Charles Sturman, Sumeer Bhola
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Publication number: 20080244696Abstract: Improved access control techniques for distributed messaging systems such as content-based publish/subscribe systems are disclosed. For example, a method for providing access control in a content-based publish/subscribe system, wherein messages are delivered from publishing clients to subscribing clients via a plurality of brokers, includes the following steps/operations. One or more changes to an access control policy are specified. An access control version identifier is associated to the one or more changes. The one or more changes are sent to one or more brokers of the plurality of brokers that have a publishing client or a subscribing client associated therewith that is affected by the one or more changes. The access control version identifier associated with the one or more changes is sent to each of the plurality of brokers.Type: ApplicationFiled: June 11, 2008Publication date: October 2, 2008Applicant: International Business Machines CorporationInventors: Sumeer K. Bhola, Daniel C. Sturman, Yuanyuan Zhao
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Publication number: 20070245018Abstract: Improved access control techniques for distributed messaging systems such as content-based publish/subscribe systems are disclosed. For example, a method for providing access control in a content-based publish/subscribe system, wherein messages are delivered from publishing clients to subscribing clients via a plurality of brokers, includes the following steps/operations. One or more changes to an access control policy are specified. An access control version identifier is associated to the one or more changes. The one or more changes are sent to one or more brokers of the plurality of brokers that have a publishing client or a subscribing client associated therewith that is affected by the one or more changes. The access control version identifier associated with the one or more changes is sent to each of the plurality of brokers.Type: ApplicationFiled: April 12, 2006Publication date: October 18, 2007Applicant: International Business Machines CorporationInventors: Sumeer Bhola, Daniel Sturman, Yuanyuan Zhao