Patents by Inventor Ke Wang

Ke Wang 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).

  • Patent number: 8385969
    Abstract: In a cellular radio system Transmission Power Control (TPC) power offset is set so that it is adjusted for each transmitting radio base station based on available relevant measurements that reflect the quality of the downlink channel carrying the uplink TPC command whereby an improved performance is obtained. The TPC power offset can for example be based on an estimated uplink Dedicated Physical Control CHannel (DPCCH) SINR, the number of TPC “up” and the number of TPC “down” sent by a radio base station and aggregated UE receiver power or UE transmit power over a number N slots. Also a mobile station used in a cellular radio system supporting soft handover may be adapted to apply TPC discarding thresholds based on the number and the quality of simultaneously received TPC commands.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: February 26, 2013
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zhang Zhang, Ke Wang Helmersson, Rong Hu, Muhammad Kazmi, Bengt Lindoff
  • Patent number: 8381299
    Abstract: Systems, methods, and media for outputting a dataset based upon anomaly detection are provided. In some embodiments, methods for outputting a dataset based upon anomaly detection: receive a training dataset having a plurality of n-grams, which plurality includes a first plurality of distinct training n-grams each being a first size; compute a first plurality of appearance frequencies, each for a corresponding one of the first plurality of distinct training n-grams; receive an input dataset including first input n-grams each being the first size; define a first window in the input dataset; identify as being first matching n-grams, the first input n-grams in the first window that correspond to the first plurality of distinct training n-grams; compute a first anomaly detection score for the input dataset using the first matching n-grams and the first plurality of appearance frequencies; and output the input dataset based on the first anomaly detection score.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: February 19, 2013
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Salvatore J Stolfo, Ke Wang, Janak Parekh
  • Publication number: 20130028052
    Abstract: Method for speeding up iterative inversion of seismic data (106) to obtain a subsurface model (102), using local cost function optimization. The frequency spectrum of the updated model at each iteration is controlled to match a known or estimated frequency spectrum for the subsurface region, preferably the average amplitude spectrum of the subsurface P-impedance. The controlling is done either by applying a spectral-shaping filter to the source wavelet (303) and to the data (302) or by applying the filter, which may vary with time, to the gradient of the cost function (403). The source wavelet's amplitude spectrum (before filtering) should satisfy D(f)=fIp(f)W(f), where f is frequency, D(f) is the average amplitude spectrum of the seismic data, and Ip(f) is the average amplitude spectrum for P-impedance in the subsurface region (306,402) or an approximation thereof.
    Type: Application
    Filed: January 30, 2012
    Publication date: January 31, 2013
    Inventors: Partha S. Routh, Spyridon K. Lazaratos, Anatoly Baumstein, Ivan Chikichev, Ke Wang
  • Publication number: 20130005149
    Abstract: A chemical-mechanical polishing composition comprising: (a) at least one type of abrasive particles; (b) at least two oxidizing agents; (c) at least one pH adjusting agent; and (d) deionized water; (e) optionally comprising at least one antioxidant, and a method for the chemical-mechanical planarization of a substrate containing at least one copper layer, at least one ruthenium layer, and at least one tantalum layer comprising the steps of (1) providing the said chemical-mechanical polishing composition; (2) contacting the substrate surface to be polished with the chemical-mechanical polishing composition and a polishing pad; and (3) chemically and mechanically polishing the substrate surface by way of moving the polishing pad relative to the substrate.
    Type: Application
    Filed: January 19, 2011
    Publication date: January 3, 2013
    Applicant: BASF SE
    Inventors: Yuzhuo Li, Ke Wang
  • Publication number: 20120315935
    Abstract: An interference analysis tool for identifying an interference problem area in a cellular radio network in which at least a first User Equipment (UE1) and a second UE (UE2) operate. The tool receives signal quality measurements and determines uplink or downlink interference severity. For UE2 uplink interference, the tool determines a first uplink Signal-to-Interference-and-Noise-Ratio (SINR) experienced by UE2, wherein the first SINR includes uplink interference from UE1. The tool also determines a second uplink SINR level (SINR0) experienced by UE2, wherein SINR0 does not include the uplink interference from UE1. The tool calculates a difference (?SINR) between SINR and SINR0 for UE2, and identifies the area where UE1 is operating as an interference-causing area when the ?SINR for UE2 is greater than a threshold value. The tool may present interference severity levels to an operator, and may initiate Radio Resource Management (RRM) procedures to mitigate interference problems in the network.
    Type: Application
    Filed: September 13, 2011
    Publication date: December 13, 2012
    Inventors: Ke Wang Helmersson, Martin Hessler
  • Patent number: 8320266
    Abstract: A method and a device relating to a scheduling mechanism in a base station in a WCDMA system are disclosed. The mechanism enables the base station to rapidly adapt to users momentary traffic demands and to interference variations, a dynamical adjustable margin is proposed in this invention. The adjustment is based on the RoT measurement in a cell. To fully use the resource in a cell, the RoT can be targeted to be as closer to the RoTmax as possible however without exceed the limit. The scheduler is preferably set to schedule as high a rate or as many users as possible to fill up the available RoT. The margin which is reserved for the neighboring cell load and external interference is decreased step by step as long as the RoT measurement is below a threshold under RoTmax. Whenever the RoT measurement exceeds the threshold, the margin is increased by one step.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: November 27, 2012
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Ke Wang Helmersson, Eva Englund, Patrik Karlsson
  • Publication number: 20120253758
    Abstract: Wavelet estimation method, particularly advantageous for full wavefield inversion (“FWI”) of seismic data, that makes use of both the primary and multiple reflections in the data. The inventive method uses an FWI algorithm to generate a subsurface model from primary reflections (101) in a shallow layer before first arrival of multiple reflections (101). The model is then used to simulate multiples (102). The wavelet is subsequently modified (104) such that the simulated multiples closely match the true recorded multiples (103). The simulated multiples may then be subtracted from the measured data (105) thereby creating a deeper top layer of data substantially free of multiples, and the method may then be repeated to extend the subsurface model to a greater depth (106).
    Type: Application
    Filed: January 23, 2012
    Publication date: October 4, 2012
    Inventors: Spyridon K. Lazaratos, Ke Wang
  • Publication number: 20120243423
    Abstract: A method may include determining whether a discrepancy exists between scheduling headroom computable by a first device and scheduling headroom computable by a second device, determining one or more load measurements that the second device bases its computation of the scheduling headroom if it is determined that the discrepancy exists, modifying the one or more load measurements, and calculating the scheduling headroom based on the modified one or more load measurements.
    Type: Application
    Filed: June 5, 2012
    Publication date: September 27, 2012
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Eva Englund, Fredrik Gunnarsson, Erik Geijer Lundin, Ke Wang Helmersson
  • Publication number: 20120236209
    Abstract: A smart remote control device is disclosed having local text editing functionality. User can use the smart remote control device to input and edit text and URL address using the local mini keyboard and display device; the smart remote control device can send the edited text in batch. The particular applications of this smart remote control device include smart TV and media center computers.
    Type: Application
    Filed: March 14, 2011
    Publication date: September 20, 2012
    Inventor: Ke Wang
  • Publication number: 20120224607
    Abstract: A method and a network side device for trunking communication are provided, and the method includes: in the frequency hopping synchronization of the trunking communication, sending a frequency hopping synchronization information frame to a mobile terminal intended to communication, wherein the frequency hopping synchronization information frame includes the frequency hopping synchronization information. The amount of the transmitted synchronization information is large, the time for establishing synchronization is short, and the confidentiality is strong; and the technical difficulty of the implementation is not high.
    Type: Application
    Filed: December 15, 2009
    Publication date: September 6, 2012
    Applicant: Hytera Communications Corp., Ltd.
    Inventors: Pengfei Sun, Chao Ma, Quanbin Lian, Qinxuan Huang, Ke Wang
  • Patent number: 8258216
    Abstract: The present invention generally relates to a resin composition, a cured resin, a sheet-like cured resin, a laminated body, a prepreg, electronic parts, single and multilayer circuit boards comprising a cyanate ester polymer and condensed phosphate ester, for use in single and multilayer circuit boards that are especially useful in the high-frequency range of above 100 MHz.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: September 4, 2012
    Assignee: Park Electrochemical Corporation
    Inventors: Wei Qiang, Ke Wang, Doug Leys, Greg Almen
  • Publication number: 20120201134
    Abstract: The present invention relates to methods and arrangements of controlling an uplink data rate between a user equipment and a communication network node, which are communicating with each other on uplink and downlink data channels over a radio interface. A scheduler is arranged to distribute available scheduling headroom, provided by an uplink load control unit, between user equipments which are to be scheduled. A scheduling grant signalling is sent from the communication network node to the user equipment, based on which the user equipment is able to select a transport format combination (E-TFC).
    Type: Application
    Filed: October 23, 2009
    Publication date: August 9, 2012
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ke Wang Helmersson, Zhang Zhang
  • Publication number: 20120196835
    Abstract: The invention provides compounds, compositions, and methods for studying the Rohmer pathway and for treating bacterial infections or parasitic infections. The parasitic infection can be a protozoan infection, such as malaria. The compounds and compositions can also be used as antibiotics, for example, to kill bacteria or parasites, or to inhibit bacterial or parasite growth. The invention further provides inhibitors of isoprenoid biosynthesis enzymes, and methods of inhibiting the activity of isoprenoid biosynthesis enzymes. The compounds can be, for example, alkynes or allenes that bind to a unique Fe of an Fe4S4 cluster of an isoprenoid biosynthesis enzyme.
    Type: Application
    Filed: October 8, 2010
    Publication date: August 2, 2012
    Inventors: Eric Olafield, Ke Wang, Weixue Wang, Yonghui Zhang
  • Publication number: 20120184837
    Abstract: The invention relates to a probe for stimulation and recording of neural activity in the brain, the probe comprising an axially extending shaft. In one embodiment, at least one stimulation electrode partially encircles the shaft besides at a gap, wherein one or more recording electrodes are located in the gap.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 19, 2012
    Applicant: SAPIENS STEERING BRAIN STIMULATION B.V.
    Inventors: Hubert Cécile François Martens, Ke Wang
  • Publication number: 20120182929
    Abstract: Embodiments of the present invention disclose a method, an apparatus, and a system for data transmission. The method for data transmission includes: determining that data to be transmitted is control plane signaling related to a user equipment that camps on a relay node; and transmitting the data through a first user data bearer established between the relay node and a donor base station, where the first user data bearer provides integrity protection for the data. According to the embodiments of the present invention, when the control plane signaling related to the user equipment that camps on the relay node is transmitted between the relay node and the donor base station, integrity protection is provided for the control plane signaling, and therefore attacks such as the denial of a service attack are prevented.
    Type: Application
    Filed: March 28, 2012
    Publication date: July 19, 2012
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Jing Chen, Ke Wang, Hui Ma, Bo Lin, Aiqing Zhang, Dongmei Zhang, Xiaoyu Bi
  • Patent number: 8224345
    Abstract: A method may include determining whether a discrepancy exists between scheduling headroom computable by a first device and scheduling headroom computable by a second device, determining one or more load measurements that the second device bases its computation of the scheduling headroom if it is determined that the discrepancy exists, modifying the one or more load measurements, and calculating the scheduling headroom based on the modified one or more load measurements.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: July 17, 2012
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Eva Englund, Fredrik Gunnarsson, Erik Geijer Lundin, Ke Wang Helmersson
  • Patent number: 8208456
    Abstract: A method and an arrangement for obtaining efficient radio resource utilization in a communication network comprising a first communication network entity (10), a second communication network entity (15) connected to said first communication network over a communication interface and one or more user equipments (18) transmitting data to said second communication network entity (15) over a radio interface. The user equipments (18) perform the step of autonomously selecting a hybrid automatic retransmission request (HARQ) operating point in order to efficiently deliver transmitted data.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: June 26, 2012
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ke Wang Helmersson, Maria Samuelsson, Erik Dahlman, Maria Edvardsson, Eva Englund, Mats Fredrik Sagfors, Janne Peisa, Stefan Parkvall
  • Publication number: 20120146857
    Abstract: An antenna module, and a touch module and an electronic device using the same are presented. The antenna module includes a transparent substrate and an antenna circuit disposed on the transparent substrate. The antenna circuit includes a pair of electrodes and a coil assembly connected to the electrodes. The electronic device includes a mother board, a display panel, and an antenna module. The transparent substrate and the mother board are overlapped on opposite surfaces of the display panel, such that a circuit design space of the electronic device using the antenna module is reduced.
    Type: Application
    Filed: March 3, 2011
    Publication date: June 14, 2012
    Applicant: SMART APPROACH CO., LTD
    Inventor: Cheng-Ke Wang
  • Patent number: 8184597
    Abstract: A radio resource management technique in a cellular telecommunication system is disclosed. The telecommunication system comprises at least one radio network controlling component and one or more base station components operable to implement an uplink scheduling scheme in relation to one or more user terminals. A method embodiment comprises the steps of receiving, by one of the base station components from the at least one radio network controlling component, at least one interference control parameter, of generating one or more scheduling grants taking into account the at least one interference control parameter, and of issuing the one or more scheduling grants to one or more user terminals.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: May 22, 2012
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Eva Englund, Gunnar Bark, Tjeerd De Boer, Patrik Karlsson, Dirk Gerstenberger, Mats Sagfors, Fredrik Gunnarsson, Ke Wang Helmersson, Stefan Parkvall
  • Publication number: 20120112947
    Abstract: A capacitive-to-digital converter is provided which includes: sensor, offset and reference capacitors, an integrator circuit and a demodulation circuit. The sensor capacitor is switched according to a first clock and the offset capacitor according to a second clock, which has a higher switching frequency. The reference capacitor is switched according to a return signal from the converter's output. The integrator circuit includes an integrator capacitor, and has first and second nodes, with the sensor, offset and reference capacitors each being switched to the first and second nodes based on the respective first clock, second clock or return signal. The demodulation circuit receives and converts output of the integrator circuit into a digital output. The higher frequency clocking of the offset capacitor allows for a reduction in capacitance of the offset, reference or integrator capacitor, and the multiclocking of the converter allows for use of a multireferencing to the sensor capacitor.
    Type: Application
    Filed: January 12, 2010
    Publication date: May 10, 2012
    Applicant: ZENTRUM MIKROELEKTRONIK DRESDEN AG
    Inventors: Mathias Krauss, Maha Jaafar, Ke Wang, Eric Hoffman