Patents by Inventor Wen Rong

Wen Rong 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: 7864901
    Abstract: An apparatus and a method for cancelling an interference of each of a plurality of received signals are provided. The apparatus comprises an estimation module, an ordering module, a selection module, an equalizer, and a cancellation module. The estimation module estimates a plurality of estimated channels according to a first predetermined number of pilot-tones. The ordering module decides a decision order for processing. The selection module selects a second predetermined number of the received signals as the second predetermined number of processing signals. The equalizer estimates the estimated values, wherein each of the estimated values corresponds to a processing signal. The decision module decides a decided value for each of the estimated values. The cancellation module cancels the interference for each of the processing signals according to the corresponding decided value and the corresponding channel.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: January 4, 2011
    Assignee: Mediatek, Inc.
    Inventors: Wen-Rong Wu, Ku-How Yang
  • Publication number: 20100173281
    Abstract: The present invention provides for novel HCV NS3 protease replicon shuttle vectors useful for cloning in HCV polynucleotide sequences from samples of HCV-infected patients and testing the resulting replicons for drug susceptibility.
    Type: Application
    Filed: January 6, 2009
    Publication date: July 8, 2010
    Inventors: Samir Ali, Wen-Rong Jiang
  • Publication number: 20100008431
    Abstract: A method for a mobile station to provide to a base station feedback of channel state information (CSI) regarding a plurality of communication channels between the mobile station and the base station. The method includes: estimating the CSI by calculating a plurality of channel responses each for one of the communication channels; compressing the estimated CSI; and sending the compressed CSI as the feedback to the base station.
    Type: Application
    Filed: December 18, 2008
    Publication date: January 14, 2010
    Inventors: Wen-Rong Wu, Tzu-Han Hsu, Jen-Yuan Hsu, Pang-An Ting
  • Publication number: 20100003213
    Abstract: The present invention relates to the use of nucleoside derivatives of formula Ia wherein the symbols are as defined in the specification, and of pharmaceutically acceptable salts thereof and to pharmaceutical compositions containing such compounds.
    Type: Application
    Filed: September 16, 2009
    Publication date: January 7, 2010
    Inventors: Rene Robert Devos, Christopher John Hobbs, Wen Rong Jiang, Joseph Armstrong Martin, John Herbert Merrett, Isabel Najera, Nobuo Shimma, Takuo Tsukuda
  • Publication number: 20100004192
    Abstract: The present invention relates to the use of nucleoside derivatives of formula Ia wherein the symbols are as defined in the specification, and of pharmaceutically acceptable salts thereof and to pharmaceutical compositions containing such compounds.
    Type: Application
    Filed: September 14, 2009
    Publication date: January 7, 2010
    Inventors: Joseph Armstrong Martin, John Herbert Merrett, Isabel Najera, Rene Robert Devos, Christopher John Hobbs, Wen Rong Jiang, Nobuo Shimma, Takuo Tsukuda
  • Patent number: 7608601
    Abstract: The present invention relates to the use of nucleoside derivatives of formula I wherein B signifies a 9-purinyl residue B1 of formula or a 1-pyrimidyl residue B2 of formula wherein the symbols are as defined in the specification, and of pharmaceutically acceptable salts thereof; for the treatment of diseases mediated by the Hepatitis C Virus (HCV), for the preparation of a medicament for such treatment and to pharmaceutical compositions containing such compounds.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: October 27, 2009
    Assignee: Roche Palo Alto LLC
    Inventors: Rene Robert Devos, Christopher John Hobbs, Wen Rong Jiang, Joseph Armstrong Martin, John Herbert Merrett, Isabel Najera, Nobuo Shimma, Takuo Tsukuda
  • Publication number: 20090252261
    Abstract: A wireless communication system, an apparatus and a method for processing a received OFDM signal is provided. The wireless communication system comprises an interface and a processing apparatus. The interface is configured to receive a received OFDM signal. The processing apparatus comprises an estimation module and a calculation module. The estimation module is configured to estimate an auto-correlation matrix relating to the received OFDM signal, with the auto-correlation matrix comprising a plurality of elements. Then, the calculation module is configured to calculate an amplitude and a phase for each of the elements to determine the carrier frequency offset (CFO) and timing offset (TO) of the received OFDM signal according to the amplitudes and phases. By exploiting the auto-correlation matrix of the received OFDM signal, the CFO and TO can be derived efficiently.
    Type: Application
    Filed: April 2, 2008
    Publication date: October 8, 2009
    Applicant: MEDIATEK INC.
    Inventors: Wen-Rong Wu, Hung-Tao Hsieh
  • Patent number: 7573954
    Abstract: An apparatus and method of an OFDM system for compensating IQ imbalance. The apparatus includes a mixer module for mixing a wireless signal to generate a pair of in-phase and quadrature-phase analog signals; an in-phase and quadrature-phase imbalance parameter estimation unit coupled to the mixer module for estimating a gain compensation value and a phase compensation value; and a signal compensation module coupled to the in-phase and quadrature-phase imbalance parameter estimation unit for compensating the pair of in-phase and quadrature-phase analog signals for gain imbalance and phase imbalance, according to the gain compensation value and the phase compensation value respectively.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: August 11, 2009
    Assignee: MediaTek Inc.
    Inventors: Wen-Rong Wu, Guoren Tsai
  • Publication number: 20090175392
    Abstract: An apparatus and a method for cancelling an interference of each of a plurality of received signals are provided. The apparatus comprises an estimation module, an ordering module, a selection module, an equalizer, and a cancellation module. The estimation module estimates a plurality of estimated channels according to a first predetermined number of pilot-tones. The ordering module decides a decision order for processing. The selection module selects a second predetermined number of the received signals as the second predetermined number of processing signals. The equalizer estimates the estimated values, wherein each of the estimated values corresponds to a processing signal. The decision module decides a decided value for each of the estimated values. The cancellation module cancels the interference for each of the processing signals according to the corresponding decided value and the corresponding channel.
    Type: Application
    Filed: January 8, 2008
    Publication date: July 9, 2009
    Applicant: MediaTek Inc.
    Inventors: Wen-Rong Wu, Ku-How Yang
  • Publication number: 20090110090
    Abstract: A wireless communication receiving system and an apparatus and a method for deciding a transmitted signal corresponding to a received signal thereof are provided. The transmitted signal comprises a plurality of sub-transmitted signals. The system selects at least one of the sub-transmitted signals as a reference signal group, wherein each of a plurality of candidate values of the reference signal group forms a candidate geometric space respectively. The received signal is projected to each of the candidate geometric spaces to generate a projection signal respectively. In each of the candidate geometric space, the corresponding projection signal is quantized to generate a quantized projection signal having a projection distance to the corresponding projection signal. Finally, the transmitted signal is decided according the quantized projection signal and the candidate signal value corresponding to the shortest projection distance.
    Type: Application
    Filed: May 30, 2008
    Publication date: April 30, 2009
    Applicant: NATIONAL CHIAO TUNG UNIVERSIT
    Inventors: Wen-Rong Wu, Jiun-Ying Wu
  • Publication number: 20090110113
    Abstract: Wireless transmitted system and apparatus and method for encoding a plurality of information bits to a plurality of transmitted signals thereof, and wireless received system and apparatus and method for decoding a received signal to a plurality of information bits thereof are provided. The wireless transmitted system encodes a plurality of information bits to a plurality of transmitted signals by two logic operation modules, an interleaving module, and a combination module. The wireless received system decodes a received signal to a plurality of information bits by a division module, two probability generation modules, two status calculation modules, a signal generation module and a combination module.
    Type: Application
    Filed: July 8, 2008
    Publication date: April 30, 2009
    Applicant: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Wen-Rong Wu, Shih-Chi Shen, Yu-Cheng Lin
  • Publication number: 20090110044
    Abstract: Method and apparatus for deciding a channel impulse response for an OFDM system are provided. First, a channel frequency response is generated by using a plurality of pilot tones of a signal. A channel impulse response is generated by applying the IFFT to the channel frequency response. A plurality of selected channel taps are derived by comparing a plurality of channel taps related to the channel impulse response with a reference threshold. Finally, the channel impulse response is generated by calculating channel impulse respose according to the selected channel taps. This method calculates the channel impulse response in time domain and frequency domain so that the calculation complexity can be reduced, and the system efficiency can be enhanced.
    Type: Application
    Filed: April 22, 2008
    Publication date: April 30, 2009
    Applicant: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Wen-Rong Wu, Shiang-Lun Kao
  • Publication number: 20090028253
    Abstract: A MIMO OFDM system for TICM is provided. The tone-level interleaver at the transmitter uses a block of NT symbols as its basic unit. This results in different decoding architectures at the receiver. The main advantage of TICM is to merge soft-bit demapping into the Viterbi algorithm. Taking the advantage of the trellis structure inherent in the Viterbi algorithm, TICM can have lower computational complexity and potentially better performance than BICM with the LSD detector and the vector demapper. Although the tone-level interleaving may not have spatial diversity gain, the performance is not affected in 802.11n environments.
    Type: Application
    Filed: July 24, 2007
    Publication date: January 29, 2009
    Inventors: Wen-Rong Wu, Shih-Chi Shen
  • Publication number: 20080101484
    Abstract: In high-speed mobile environments, the channel is time-varying within an OFDM symbol. This time-varying characteristic will destroy the orthogonality among subcarriers. Thus, the intercarrier interference (ICI) will occur and the system performance will be degraded. An ICI mitigation method for high-speed mobile OFDM systems is proposed, which explores the special structure of the ICI channel matrix and applies the Newton's iterative matrix inversion method. With our formulation, fast Fourier transform (FFT) can be used to reduce the computational complexity. The object of canceling the ICI can be accomplished without the need of any extra circuit.
    Type: Application
    Filed: November 1, 2006
    Publication date: May 1, 2008
    Inventors: Wen-Rong Wu, Chao-Yuan Hsu
  • Publication number: 20060215537
    Abstract: An apparatus and a method for estimating a clipping parameter of an OFDM system are disclosed. The apparatus includes a clipping error detection module for evaluating a received clipping error; a division module coupled to the clipping error detection module for obtaining a characteristic value according to the received clipping error; and a computation module coupled to the division module for estimating the clipping parameter according to the characteristic value.
    Type: Application
    Filed: January 11, 2006
    Publication date: September 28, 2006
    Inventors: Wen-Rong Wu, Chuntao Lin
  • Publication number: 20060198475
    Abstract: An apparatus and method of an OFDM system for compensating IQ imbalance. The apparatus includes a mixer module for mixing a wireless signal to generate a pair of in-phase and quadrature-phase analog signals; an in-phase and quadrature-phase imbalance parameter estimation unit coupled to the mixer module for estimating a gain compensation value and a phase compensation value; and a signal compensation module coupled to the in-phase and quadrature-phase imbalance parameter estimation unit for compensating the pair of in-phase and quadrature-phase analog signals for gain imbalance and phase imbalance, according to the gain compensation value and the phase compensation value respectively.
    Type: Application
    Filed: February 23, 2006
    Publication date: September 7, 2006
    Inventors: Wen-Rong Wu, Guoren Tsai
  • Patent number: 7014710
    Abstract: A method of growing single crystal Gallium Nitride on silicon substrate is disclosed including: removing oxide layer of silicon substrate, growing buffer layer of Silicon Carbon Nitride (SiCN), and growing single crystalline Gallium Nitride thin film, characterized in that a buffer layer of SiCN is grown to avoid lattice mismatch which appears when Gallium Nitride is grown directly on silicon substrate, and that Rapid Thermal Chemical Vapor Deposition is adopted to grow SiCN buffer layer, and that Metalorganic Chemical Vapor Deposition is adopted to grow single crystalline GaN thin film.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: March 21, 2006
    Assignee: National Cheng-Kung University
    Inventors: Yean Kuen Fang, Wen Rong Chang, Shyh Fann Ting, Hon Kuan, Cheng Nan Chang
  • Patent number: 6997380
    Abstract: A computer implemented method for processing lottery sales data comprises the steps of causing display of a table on a computer, the table containing data representing lottery game attributes and lottery ticket sales for a plurality of lottery game types; enabling a user of the computer to query the data in the table based on at least one criterion from a predetermined list of criteria; and forecasting sales of a new lottery game based on results of the query.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: February 14, 2006
    Assignee: Scientific Games Royalty Corporation
    Inventors: Aman Safaei, Wen Rong, James C. Kennedy, Jr.
  • Patent number: 6841311
    Abstract: A new sequence and chemical composition for cleaning the surface of a halftone shift masks that use MoSiON as shifter material is provided. For purposes of repair or rework, the pellicle is removed from the mask so that the mask can be accessed. After the rework or repair has been completed, a new clean process is performed, for the new clean process the sequence of steps that is conventionally performed has been modified. After the new clean process has been completed, the pellicle is reinstalled over the surface of the mask.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: January 11, 2005
    Assignee: Taiwan Semiconductor Manufacturing Company
    Inventors: Same-Ting Chen, Cheng-Shien Lee, Chin-Wang Hu, Chieh-Yuan Cheng, Hsiang-Chien Hsu, Tzy-Ying Lin, Wen-Rong Huang
  • Publication number: 20040266722
    Abstract: The present invention relates to the use of nucleoside derivatives of formula I 1
    Type: Application
    Filed: July 15, 2004
    Publication date: December 30, 2004
    Inventors: Rene Robert Devos, Christopher John Hobbs, Wen Rong Jiang, Joseph Armstrong Martin, John Herbert Merrett, Isabel Najera, Nobuo Shimma, Takuo Tsukuda