Patents by Inventor Xiaofeng Wu

Xiaofeng Wu 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: 9424514
    Abstract: The developmental neural network is trained using a synaptic maintenance process. Synaptogenic trimming is first performed on the neuron inputs using a synaptogenic factor for each neuron based on standard deviation of a measured match between the input and synaptic weight value. A top-k competition among all neurons then selects a subset of said neurons as winning neurons. Neuronal learning is applied only to these winning neurons, updating their synaptic weights and updating their synaptogenic factors.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: August 23, 2016
    Assignee: Board of Trustees of Michigan State University
    Inventors: Juyang Weng, Yuekai Wang, Xiaofeng Wu
  • Patent number: 9380641
    Abstract: A mobile station is disclosed for processing differing radio standards such as GSM/GPRS/EDGE and TD-SCDMA. The mobile station includes a channel decoding unit and a coding unit. The signals of both radio standards are processed both with the coding unit and with the channel decoding unit. The coding unit and the channel decoding unit are arranged in the baseband chip of the mobile station. The TD-SCDMA-specific algorithms can be generated by means of a coprocessor that is electrically connected to the baseband chip or integrated in the baseband chip.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: June 28, 2016
    Assignee: Intel Deutschland GmbH
    Inventors: Robert Denk, Bertram Gunzelmann, Xiaofeng Wu
  • Publication number: 20160132926
    Abstract: Systems and methods for generating coordinated advertising campaigns in accordance with embodiments of the invention are disclosed.
    Type: Application
    Filed: November 12, 2015
    Publication date: May 12, 2016
    Inventors: Stephen John Zimmerman, JR., Behzad Zamanzadeh, Xiaofeng Wu, Alissa Volosin
  • Patent number: 9106298
    Abstract: A channel filter (200) with a variable pass bandwidth has a first low-pass filter (200.2) on the input side and is driven by a means (30) for controlling the pass bandwidth as a function of the adjacent channel interference. A first input of the control means (30) is connected to the first low-pass filter (200.2), and a second input is connected to a bandpass filter (200.4) which is connected in parallel with the channel filter (200). The signal path which contains the low-pass filter (200.2) contains a means (37) for removing a DC signal component or DC component.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: August 11, 2015
    Assignee: Intel Mobile Communications GmbH
    Inventors: Bertram Gunzelmann, Xiaofeng Wu
  • Patent number: 9077418
    Abstract: A method for controlling receiving diversity of a receiver and a mobile station are provided. The method comprises determining single antenna receiving quality indicators for all activated antennas if a receiver receiving quality indicator of the receiver is above a first threshold, and deactivating all the activated antennas except one activated antenna with a single antenna receiving quality indicator indicating best receiving quality based on the determined single antenna receiving quality indicators.
    Type: Grant
    Filed: January 21, 2012
    Date of Patent: July 7, 2015
    Assignee: Intel Mobile Communications GmbH
    Inventors: Yanzeng Fu, Hong Zhang, Xiaofeng Wu
  • Patent number: 8913679
    Abstract: A method for decoding a wireless channel includes generating hypotheses of how many antennas each of at least two base stations have in a synchronized network and how received signals are being transmitted for each of the at least two base stations, detecting a MIMO signal using the hypotheses and signal components received from the at least two base stations, decoding the signal, and determining whether the decoded signal is valid by performing a cyclical redundancy check calculation.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: December 16, 2014
    Assignee: Intel Mobile Communications GmbH
    Inventors: Franz Eder, Axel Clausen, Tobias Kurpjuhn, Xiaofeng Wu
  • Publication number: 20140112404
    Abstract: A method for decoding a wireless channel includes generating hypotheses of how many antennas each of at least two base stations have in a synchronized network and how received signals are being transmitted for each of the at least two base stations, detecting a MIMO signal using the hypotheses and signal components received from the at least two base stations, decoding the signal, and determining whether the decoded signal is valid by performing a cyclical redundancy check calculation.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 24, 2014
    Inventors: Franz Eder, Axel Clausen, Tobias Kurpjuhn, Xiaofeng Wu
  • Publication number: 20140016685
    Abstract: A method for controlling receiving diversity of a receiver and a mobile station are provided. The method comprises determining single antenna receiving quality indicators for all activated antennas if a receiver receiving quality indicator of the receiver is above a first threshold, and deactivating all the activated antennas except one activated antenna with a single antenna receiving quality indicator indicating best receiving quality based on the determined single antenna receiving quality indicators.
    Type: Application
    Filed: January 21, 2012
    Publication date: January 16, 2014
    Inventors: Yanzeng Fu, Hong Zhang, Xiaofeng Wu
  • Patent number: 8553755
    Abstract: An interference suppression processing unit includes at least one receive path, wherein each of the at least one receive path is configured to transmit one of at least one received data sequence received from at least one antenna port, a signal generation unit configured to generate at least one signal data sequence from the at least one received data sequence, at least one signal path, wherein each of the at least one signal path is configured to transmit one of the at least one signal data sequence, at least one prefilter unit, wherein each of the at least one prefilter unit is coupled to one of the at least one signal path and a combiner including at least one input terminal, wherein each of the at least one input terminal is connected to an output terminal of one of the at least one prefilter unit, wherein the signal generation unit is configured to generate K1 first signal data sequences, wherein each first signal data sequence is identical to one of the at least one received data sequence, respectively,
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: October 8, 2013
    Assignee: Intel Mobile Communications GmbH
    Inventor: Xiaofeng Wu
  • Patent number: 8183966
    Abstract: An entirely integrated EMI filter is based on a flexible multi-layer strip material. An EE or EI core comprises two side pillars and one middle pillar and forms a closed magnetic circuit. The middle pillar has an air gap. A first winding and a second winding respectively are wound around the two side pillars in a same winding direction. The middle pillar is wound with a third winding and a fourth winding, or with only a fifth winding. Passive components (e.g., all passive components) of the EMI filter are integrated into one core so that in its differential mode, insertion loss is significantly reduced, the size and volume are reduced, and the distribution constant of the EMI filter has less impact on the filter's performance.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: May 22, 2012
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Dehong Xu, Zhiwei Wen, Xiaofeng Wu, Yasuhiro Okuma, Kazuaki Mino
  • Publication number: 20110206171
    Abstract: An interference suppression processing unit includes at least one receive path, wherein each of the at least one receive path is configured to transmit one of at least one received data sequence received from at least one antenna port, a signal generation unit configured to generate at least one signal data sequence from the at least one received data sequence, at least one signal path, wherein each of the at least one signal path is configured to transmit one of the at least one signal data sequence, at least one prefilter unit, wherein each of the at least one prefilter unit is coupled to one of the at least one signal path and a combiner including at least one input terminal, wherein each of the at least one input terminal is connected to an output terminal of one of the at least one prefilter unit, wherein the signal generation unit is configured to generate K1 first signal data sequences, wherein each first signal data sequence is identical to one of the at least one received data sequence, respectively,
    Type: Application
    Filed: May 3, 2011
    Publication date: August 25, 2011
    Applicant: Infineon Technologies AG
    Inventor: Xiaofeng Wu
  • Patent number: 7961782
    Abstract: The interference suppression processing unit includes Na?1 receiver paths to transmit respective Na?1 received data sequences received from respective Na?1 antennas, and a signal generation unit to generate K?Na signal data sequences from the received data sequences. The interference suppression processing unit also includes K?Na signal paths that each transmit one of the signal data sequences, a prefilter unit in each one of the signal paths, and a combiner having K?Na input terminals each one connected to an output terminal of one of the prefilter units.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: June 14, 2011
    Assignee: Infineon Technologies AG
    Inventor: Xiaofeng Wu
  • Publication number: 20110101189
    Abstract: A mounting device for internal circlip comprises a device frame composed of a base board, a cylinder fixation board and at least two perpendicular sliding guides located between the base board and the cylinder fixation board and fixed thereof; a core rod fixation board and a sleeve fixation board being movable on the at least two sliding guides, the core rod fixation board being above the sleeve fixation board, at least two compression springs being located thereof; a cylinder fixed on the cylinder fixation board, a piston rod of the cylinder passing through the cylinder fixation board being fixed on top of a circlip core rod, the circlip core rod and the core rod fixation board being fixed together and a bottom of the circlip core rod extending to a top of the sleeve fixation board; a sleeve coaxial with the circlip core rod being fixed on the top of the sleeve fixation board, the sleeve having a inner cone hole with a big top opening and a small bottom opening, a bottom of the circlip core rod can pass thro
    Type: Application
    Filed: March 13, 2009
    Publication date: May 5, 2011
    Inventors: Hongyuan Hu, Xiaofeng Wu
  • Patent number: 7864879
    Abstract: A system having a signal processor for detection of a signal type of a signal is disclosed. One embodiment includes a processor designed to determine a first variable which is characteristic of a first spectrum element of the signal spectrum, and to determine a second variable which is characteristic of a second spectrum element of the signal spectrum. A system is provided for determination of a ratio between the first variable and the second variable, and a detector which is designed to detect the signal type on the basis of the ratio.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: January 4, 2011
    Assignee: Infineon Technologies AG
    Inventors: Xiaofeng Wu, Martin Krueger
  • Publication number: 20100245008
    Abstract: An entirely integrated EMI filter is based on a flexible multi-layer strip material. An EE or EI core comprises two side pillars and one middle pillar and forms a closed magnetic circuit. The middle pillar has an air gap. A first winding and a second winding respectively are wound around the two side pillars in a same winding direction. The middle pillar is wound with a third winding and a fourth winding, or with only a fifth winding. Passive components (e.g., all passive components) of the EMI filter are integrated into one core so that in its differential mode, insertion loss is significantly reduced, the size and volume are reduced, and the distribution constant of the EMI filter has less impact on the filter's performance.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 30, 2010
    Applicants: ZHE JIANG UNIVERSITY, FUJI ELECTRIC SYSTEMS CO., LTD.
    Inventors: Dehong XU, Zhiwei Wen, Xiaofeng Wu, Yasuhiro Okuma, Kazuaki Mino
  • Patent number: 7620100
    Abstract: In a method for equalization of a signal that is transmitted via a user channel using the DF method, an interference channel is taken into account by the DF contribution that is used for processing of the user channel trellis diagram containing information about the interference channel.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: November 17, 2009
    Assignee: Infineon Technologies AG
    Inventors: Burkhard Becker, Bertram Gunzelmann, Martin Krueger, Xiaofeng Wu
  • Publication number: 20080298521
    Abstract: The interference suppression processing unit includes Na?1 receiver paths to transmit respective Na?1 received data sequences received from respective Na?1 antennas, and a signal generation unit to generate K?Na signal data sequences from the received data sequences. The interference suppression processing unit also includes K?Na signal paths that each transmit one of the signal data sequences, a prefilter unit in each one of the signal paths, and a combiner having K?Na input terminals each one connected to an output terminal of one of the prefilter units.
    Type: Application
    Filed: June 4, 2007
    Publication date: December 4, 2008
    Inventor: Xiaofeng Wu
  • Publication number: 20080242256
    Abstract: A channel filter (200) with a variable pass bandwidth has a first low-pass filter (200.2) on the input side and is driven by a means (30) for controlling the pass bandwidth as a function of the adjacent channel interference. A first input of the control means (30) is connected to the first low-pass filter (200.2), and a second input is connected to a bandpass filter (200.4) which is connected in parallel with the channel filter (200). The signal path which contains the low-pass filter (200.2) contains a means (37) for removing a DC signal component or DC component.
    Type: Application
    Filed: June 5, 2008
    Publication date: October 2, 2008
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Bertram Gunzelmann, Xiaofeng Wu
  • Patent number: 7333577
    Abstract: A method for equalization of a signal is provided, wherein the equalization is of a signal that is transmitted via a data channel based on the DF method. The method takes account of at least one interference channel, and includes processing of at least two trellis diagrams in each time unit, with the states of at least one of the trellis diagrams describing the data channel. A DF contribution that is used for processing of this trellis diagram includes information about at least one interference channel.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: February 19, 2008
    Assignee: Infineon Technologies AG
    Inventors: Burkhard Becker, Bertram Gunzelmann, Martin Krüger, Xiaofeng Wu
  • Patent number: 7280617
    Abstract: In a method to compensate for a step DC disturbance (1) in a baseband signal in a homodyne radio receiver, the time profile of the step DC disturbance within a burst is determined. In order to produce a step-corrected baseband signal, the determined time profile (2) is then calculated from the digitized baseband signal.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: October 9, 2007
    Assignee: Infineon Technologies AG
    Inventors: Michael Cujé, Stefan Eibl, Stefan Herzinger, Martin Krüger, Xiaofeng Wu, Bin Yang