Patents by Inventor Xiaoming Yu
Xiaoming Yu 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).
-
Publication number: 20160131861Abstract: An optical subassembly includes: a TSV submount layer carrying an active optical component and a sandwich cap bonded to the TSV submount layer. The sandwich cap includes a bottom spacer layer disposed above the TSV submount layer, a glass layer above the bottom spacer layer, and an upper spacer layer above the glass layer. A cavity is defined in the bottom spacer layer and configured for accommodating the active optical component. At least one first lens is formed on the glass layer and is opposite to the active optical component. An alignment feature is formed in the upper spacer layer.Type: ApplicationFiled: November 6, 2014Publication date: May 12, 2016Inventors: Wei Ma, Wai Hung, Francis Guillen Gamboa, Xiaoming Yu, Dennis Tak Kit Tong
-
Publication number: 20160119141Abstract: The present invention relates to a secure communication authentication method and system in a distributed environment. By using the method and the system of the present invention, disadvantages in a platform identity certification process in TCG remote certification are alleviated, a method for platform identity certification is expanded, and by combining three technologies, that are, zero-knowledge proof, a Kerberos framework and a virtual TPM, a new verification method is designed, which is mainly intended to make improvement in the aspects in the existing method such as platform information exposure, a trusted third-party bottleneck and complexity avoidance. By using the method and the system of the present invention, the problems of privacy exposure and efficiency in mutual verification between remote servers in the existing distributed system.Type: ApplicationFiled: November 8, 2013Publication date: April 28, 2016Inventors: Yanying JING, Jianwu YANG, Xiaoming YU, Dan ZHANG
-
Publication number: 20150356444Abstract: A method and system of discovering and analyzing structures of user groups in a microblog is provided in this invention. The method of discovering and analyzing structures of the user groups in a microblog comprises: acquiring information on behavior data of microblog users of a target group; constructing a microblog user association network based on the information on behavior data of the microblog users of the target group; acquiring at least one maximal clique from the microblog user association network; acquiring at least one core clique based on the maximal clique; and conducting behavior analysis on the user groups in the microblog based on the acquired maximal clique and/or the acquired core clique.Type: ApplicationFiled: November 11, 2013Publication date: December 10, 2015Inventors: Liyong ZHAO, Xiaoming YU, Jianwu YANG, Yan ZHENG
-
Publication number: 20150356091Abstract: Provided are a method and system for identifying microblog user identity. The method comprises obtaining behavioral data of a user to be identified and feature library information of user behavior, reprocessing the obtained behavioral data of the user to be identified, performing semantic unit reconstruction on the preprocessed user behavioral data, and obtaining attribute information and its corresponding weight of the semantic unit; obtaining behavioral feature of the user to be identified based on attribute information and corresponding weight. The method further comprises comparing behavioral feature of user to be identified with each feature category in the feature library information of user behavior and determining the identity of the user to be identified of user behavior exceeds a predefined threshold. Using the provided method and system for identifying the microblog user identity, the accuracy and real-time performance of identifying the microblog user identity may be effectively improved.Type: ApplicationFiled: December 5, 2013Publication date: December 10, 2015Applicants: PEKING UNIVERSITY FOUNDER GROUP CO., LTD., PEKING UNIVERSITY, BEIJING FOUNDER ELECTRONICS CO., LTD.Inventors: Liyong ZHAO, Xiaoming YU, Jianwu YANG, Yan ZHENG
-
Patent number: 8890844Abstract: An optical navigation apparatus comprises a substrate with a sensor integrated circuit and an infrared source formed thereon; a sensor cover shielding the sensor integrated circuit and the infrared source; at least one visible light source formed outside the sensor cover and electrically connected with the substrate; a light guide located outside the sensor cover and covering the visible light source; and an outer housing covering the light guide and the substrate, and the outer housing comprises an infrared window and a side wall capable of guiding visible light towards and illuminating a region of the outer housing. In such an arrangement, the outer housing of the present invention is not only used as a casing for protection, but also served as light guide and distribution structure to reflect and re-distribute light sufficiently to achieve a uniform illuminated character shape.Type: GrantFiled: December 13, 2010Date of Patent: November 18, 2014Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Wai Hung, Francis Guillen Gamboa, Xiaoming Yu
-
Publication number: 20140289395Abstract: Disclosed are a network comment collection method and system. The method comprises: obtaining a web page entry link address; determining whether a web page corresponding to the web page entry link address has N network comments, N being a positive integer; when there are N network comments, determining whether M network comments among the N network comments satisfy a collection condition, M being a positive integer less than or equal to N; when there are M network comments satisfying the collection condition, collecting the M network comments.Type: ApplicationFiled: December 13, 2012Publication date: September 25, 2014Inventors: Tao Zhang, Xiaoming Yu, Jianwu Yang
-
Publication number: 20140189062Abstract: A distributed system for downloading distributed Internet information and a method thereof are disclosed. A distribution subsystem receives downloading task information from a user, and sends the downloading task information to a downloading subsystem. The downloading subsystem downloads task result information according to the downloading task information, and sends the task result information to the distribution subsystem. The distribution subsystem receives the task result information, and returns the task result information to the user made the request. The physical environment of the system can include a distribution server and a downloading subsystem group, the internal function of the system is to assign the required tasks to the downloading subsystem group based on a queue model, the downloading subsystem group can process the assigned tasks concurrently.Type: ApplicationFiled: December 3, 2013Publication date: July 3, 2014Applicants: Peking University Founder Group Co., Ltd., Beijing Founder Electronics Co., Ltd., Peking UniversityInventors: Lei Yan, Xiao Liang, Xiaoming Yu, Jianwu Yang
-
Publication number: 20140172774Abstract: The present application discloses a method and a device for generating a recognizing model for recognizing named entities, and a method and a device for recognizing named entities. The method for recognizing named entities comprising: obtaining a first characteristic information set of a text to be trained; recognizing the first characteristic information set based on the first recognizing model to obtain a second characteristic information set which comprises M named entities obtained by recognizing the first characteristic information set through the first recognizing model, wherein M is an integer larger than or equal to 0; and performing error-correction on the M named entities in the second characteristic information set based on the error driving model to obtain K named entities, wherein K is an integer lager than or equal to 0 but less than or equal to M.Type: ApplicationFiled: December 13, 2012Publication date: June 19, 2014Applicants: Peking University Founder Group Co., Ltd, Beijing Founder Electronics Co., Ltd, Peking UniversityInventors: Zhichao Liu, Xiaoming Yu, Jianwu Yang
-
Publication number: 20140156799Abstract: The present application discloses a method and a system for extracting post contents from a forum web page. The method includes: acquiring a forum web page; converting the forum web page into a DOM tree, wherein the DOM tree at least includes a root node and at least one child node attached to the root node; generating frequent patterns for the root node and the at least one child node in a one-to-one correspondence mode; determining a node corresponding to information contents in the forum web page according to a frequent pattern, satisfying a preset condition, in the frequent patterns; and extracting the information contents in the forum web page from the node corresponding to the information contents in the forum web page based on a preset common sub-tree algorithm.Type: ApplicationFiled: November 29, 2013Publication date: June 5, 2014Applicants: PEKING UNIVERSITY FOUNDER GROUP CO., LTD., BEIJING FOUNDER ELECTRONICS CO., LTD., PEKING UNIVERSITYInventors: Tao Zhang, Jianwu Yang, Xiaoming Yu
-
Publication number: 20140013221Abstract: The application discloses a method and a device for filtering bad information on Internet relating to the computer information process technology and the information filtering technology. Embodiments of the application provide a method for filtering bad information on Internet, comprising: obtaining texts to be filtered, system advanced-research model and a user feedback model; pre-processing the obtained texts; obtaining a first matching result through performing feature information matching between the pre-processed information and the system advanced-research model information; obtaining a second matching result through performing feature information matching between the pre-processed information and the user feedback model information; and performing filtering process on the information of the obtained texts based on the first and second matching results.Type: ApplicationFiled: December 26, 2011Publication date: January 9, 2014Applicants: PEKING UNIVERSITY FOUNDER GROUP CO., LTD., PEKING UNIVERSITY FOUNDER R & D CENTER, BEIJING FOUNDER ELECTRONICS CO., LTD., PEKING UNIVERSITYInventors: Yan Zheng, Xiaoming Yu, Jianwu Yang
-
Publication number: 20120157030Abstract: The present invention discloses a signal reception apparatus and a method for implementation thereof. The apparatus comprises: a personal computer interface, configured to implement the communications between a personal computer and the signal reception apparatus; an antenna module, configured to receive signals of a base station; and an antenna interface, configured to implement the communications between a terminal and the signal reception apparatus, so as to provide the signals received by the antenna module to the terminal. The present invention improves the signal reception effect of the terminal.Type: ApplicationFiled: April 19, 2010Publication date: June 21, 2012Applicant: ZTE CORPORATIONInventors: Jianhua Mao, Lei Liu, Xiaoming Yu
-
Patent number: 8140473Abstract: A method of real-time file synchronization includes segmenting a file to be synchronized into a plurality of segments, each segment of the plurality of segments representing a portion of the file to be displayed on slave systems. The method further includes indexing the plurality of segments into a file index, the file index organized based on the format of the file to be synchronized. The method further includes generating a synchronization key, the synchronization key being included within the file to be synchronized. The method further includes transmitting a synchronization signal if a segment change is detected, the synchronization signal including a file index value, the file index value representing the segment change. The method further includes receiving the synchronization signal.Type: GrantFiled: November 7, 2008Date of Patent: March 20, 2012Assignee: International Business Machines CorporationInventors: Jingdong Sun, Qian Sun, Jian Tang, Xiaoming Yu, Jingli Zhang
-
Publication number: 20110298715Abstract: An optical navigation apparatus comprises a substrate with a sensor integrated circuit and an infrared source formed thereon; a sensor cover shielding the sensor integrated circuit and the infrared source; at least one visible light source formed outside the sensor cover and electrically connected with the substrate; a light guide located outside the sensor cover and covering the visible light source; and an outer housing covering the light guide and the substrate, and the outer housing comprises an infrared window and a side wall capable of guiding visible light towards and illuminating a region of the outer housing. In such an arrangement, the outer housing of the present invention is not only used as a casing for protection, but also served as light guide and distribution structure to reflect and re-distribute light sufficiently to achieve a uniform illuminated character shape.Type: ApplicationFiled: December 13, 2010Publication date: December 8, 2011Applicant: SAE Magnetics (H.K.) Ltd.Inventors: Wai Hung, Francis Guillen Gamboa, Xiaoming Yu
-
Publication number: 20100121818Abstract: A method of real-time file synchronization includes segmenting a file to be synchronized into a plurality of segments, each segment of the plurality of segments representing a portion of the file to be displayed on slave systems. The method further includes indexing the plurality of segments into a file index, the file index organized based on the format of the file to be synchronized. The method further includes generating a synchronization key, the synchronization key being included within the file to be synchronized. The method further includes transmitting a synchronization signal if a segment change is detected, the synchronization signal including a file index value, the file index value representing the segment change. The method further includes receiving the synchronization signal.Type: ApplicationFiled: November 7, 2008Publication date: May 13, 2010Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Jingdong Sun, Qian Sun, Jian Tang, Xiaoming Yu, Jingli Zhang
-
Publication number: 20090150495Abstract: A method, system and program product allow an originator of an electronic mail message to create and attach different topics to messages. Recipients of messages can view different topics from an electronic mail message and can take actions on specific topics and related content. Electronic mail messages can be organized based on topics. Each topic in a string of electronic mail messages is chain-scoped with its lifetime bounded by an electronic mail chain.Type: ApplicationFiled: December 6, 2007Publication date: June 11, 2009Inventors: Qian Sun, Jian Tang, Xiaoming Yu, Jingli Zhang
-
Publication number: 20080316955Abstract: Techniques for enabling SDMA in a wireless network without using special SDMA related protocols in user terminals are disclosed. By emulating multiple non-SDMA base stations co-located at the same cell site, a base station is capable of communicating with regular user terminals on SDMA channels without requiring special SDMA protocols being implemented in the user terminals. FDMA, TDMA, and CDMA, or any combination of the three, may be used inside each of the emulated non-SDMA base station. SDMA, or any combination of SDMA, FDMA, TDMA, and CDMA, may be used among the emulated non-SDMA base stations. Coordination among the emulated non-SDMA base stations, as well as additional frequency domain, time domain, and code domain signal processing techniques, without the knowledge of the user terminals, may be performed by the SDMA base station to aid in more reliable communication of the SDMA channels.Type: ApplicationFiled: June 19, 2007Publication date: December 25, 2008Inventor: Xiaoming Yu
-
Publication number: 20080025438Abstract: Demodulating a DPSK signal is accomplished using a saturated signal, and subjecting the signal to a low pass filter for noise reshaping. Higher order demodulation is then conducted on the reshaped signal. Sporadic constellation pull-away which occurs will result in random demodulation errors which will be correctly interpreted as in more conventional approaches using higher order demodulation.Type: ApplicationFiled: July 28, 2006Publication date: January 31, 2008Applicant: UTStarcom, Inc.Inventors: Xiaoming Yu, Qin Zhong
-
Publication number: 20070030924Abstract: A method for non-data aided frequency offset determination for MPSK demodulation is accomplished by receiving a stream of K symbols and providing the symbol stream to a delay line of L symbols in length with L greater than 1. The symbol stream and an output of the delay line is taken at each increment of L and then multiplied and the output of the multiplier is raised to the M power to remove modulation. The result is accumulated over K symbols and the argument of 1/K2?MLT times the accumulated result is determined as a frequency offset. L is then incremented and the calculation repeated. The calculated frequency offsets are then summed for a final frequency offset determination.Type: ApplicationFiled: April 28, 2006Publication date: February 8, 2007Applicant: UTStarcom. Inc.Inventor: Xiaoming Yu
-
Publication number: 20070030923Abstract: A method for non-data aided frequency offset determination for MPSK demodulation is accomplished by receiving a stream of K symbols and providing the symbol stream to a delay line of L symbols in length with L greater than 1. The symbol stream and an output of the delay line are then multiplied and the output of the multiplier is raised to the M power to remove modulation. The result is accumulated over K symbols and the argument of 1/K2?MLT times the accumulated result is determined as the frequency offset.Type: ApplicationFiled: August 2, 2005Publication date: February 8, 2007Inventor: Xiaoming Yu
-
Patent number: 7020107Abstract: An embodiment of the invention provides a method for effecting switchback on a spatial division multiple access (SDMA) PHS channel. A communication signal is broadcast over each of one or more SDMA channels of a multi-access channel to one or more corresponding user terminals. A set of transmit spatial weights is determined for a synchronization burst to a user terminal attempting to reestablish communication over an SDMA channel of the multi-access channel. The set of transmit spatial weights is determined such that interference caused by one or more communication signals to the synchronization burst is reduced.Type: GrantFiled: January 21, 2003Date of Patent: March 28, 2006Assignee: Arraycomm, LLCInventors: Athanasios A. Kasapi, Adam B. Kerr, Xiaoming Yu, Lars Johan Persson